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Steven Barth 2009-04-21 16:26:45 +00:00
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@ -0,0 +1,201 @@
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49
libs/nixio/Makefile
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@ -1,21 +1,27 @@
ifneq (,$(wildcard ../../build/config.mk))
include ../../build/config.mk
include ../../build/module.mk
include ../../build/gccconfig.mk
else
include standalone.mk
endif
AXTLS_VERSION = 1.2.1
AXTLS_DIR = axTLS
AXTLS_FILE = $(AXTLS_DIR)-$(AXTLS_VERSION).tar.gz
NIXIO_TLS ?= openssl
NIXIO_LDFLAGS =
NIXIO_LDFLAGS = -lcrypt
NIXIO_SO = nixio.so
NIXIO_OBJ = src/nixio.o src/socket.o src/sockopt.o src/bind.o src/address.o \
src/poll.o src/io.o src/file.o src/splice.o src/process.o src/syslog.o \
src/tls-context.o src/tls-socket.o
src/bit.o src/binary.o src/fs.o src/user.o \
src/tls-crypto.o src/tls-context.o src/tls-socket.o
ifeq ($(NIXIO_TLS),axtls)
TLS_CFLAGS = -IaxTLS/ssl -IaxTLS/crypto -IaxTLS/config -include src/openssl-compat.h
TLS_DEPENDS = src/openssl-compat.o
NIXIO_OBJ += src/openssl-compat.o src/libaxtls.a
TLS_CFLAGS = -IaxTLS/ssl -IaxTLS/crypto -IaxTLS/config -include src/axtls-compat.h
TLS_DEPENDS = src/axtls-compat.o
NIXIO_OBJ += src/axtls-compat.o src/libaxtls.a
endif
ifeq ($(NIXIO_TLS),openssl)
@ -27,26 +33,43 @@ ifeq ($(OS),SunOS)
NIXIO_LDFLAGS += -lsocket -lnsl -lsendfile
endif
ifneq (,$(findstring MINGW,$(OS))$(findstring mingw,$(OS))$(findstring Windows,$(OS)))
NIXIO_CROSS_CC:=$(shell which i586-mingw32msvc-cc)
ifneq (,$(NIXIO_CROSS_CC))
CC:=$(NIXIO_CROSS_CC)
endif
NIXIO_OBJ += src/mingw-compat.o
NIXIO_LDFLAGS_POST:=-llua -lssl -lcrypto -lws2_32 -lgdi32
FPIC:=
EXTRA_CFLAGS += -D_WIN32_WINNT=0x0501
LUA_CFLAGS:=
NIXIO_SO:=nixio.dll
NIXIO_LDFLAGS:=
endif
%.o: %.c
$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) -c -o $@ $<
src/tls-crypto.o: $(TLS_DEPENDS) src/tls-crypto.c
$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) $(TLS_CFLAGS) -c -o $@ src/tls-crypto.c
src/tls-context.o: $(TLS_DEPENDS) src/tls-context.c
$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) $(TLS_CFLAGS) -c -o $@ src/tls-context.c
src/tls-socket.o: $(TLS_DEPENDS) src/tls-socket.c
$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) $(TLS_CFLAGS) -c -o $@ src/tls-socket.c
src/openssl-compat.o: src/libaxtls.a src/openssl-compat.c
$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) $(TLS_CFLAGS) -c -o $@ src/openssl-compat.c
src/axtls-compat.o: src/libaxtls.a src/axtls-compat.c
$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) $(TLS_CFLAGS) -c -o $@ src/axtls-compat.c
mkdir -p dist
cp -pR axtls-root/* dist/
compile: $(NIXIO_OBJ)
$(LINK) $(SHLIB_FLAGS) $(NIXIO_LDFLAGS) -o src/nixio.so $(NIXIO_OBJ)
$(LINK) $(SHLIB_FLAGS) $(NIXIO_LDFLAGS) -o src/$(NIXIO_SO) $(NIXIO_OBJ) $(NIXIO_LDFLAGS_POST)
mkdir -p dist$(LUA_LIBRARYDIR)
cp src/nixio.so dist$(LUA_LIBRARYDIR)/nixio.so
cp src/$(NIXIO_SO) dist$(LUA_LIBRARYDIR)/$(NIXIO_SO)
$(AXTLS_DIR)/.prepared:
#rm -rf $(AXTLS_DIR)
@ -55,9 +78,13 @@ $(AXTLS_DIR)/.prepared:
touch $@
src/libaxtls.a: $(AXTLS_DIR)/.prepared
$(MAKE) -C $(AXTLS_DIR) CC=$(CC) CFLAGS="$(CFLAGS) $(EXTRA_CFLAGS) $(FPIC) '-Dalloca(size)=__builtin_alloca(size)' -Wall -pedantic -I../config -I../ssl -I../crypto" LDFLAGS="$(LDFLAGS)" OS="$(OS)" clean all
$(MAKE) -C $(AXTLS_DIR) CC=$(CC) CFLAGS="$(CFLAGS) $(EXTRA_CFLAGS) $(FPIC) -Wall -pedantic -I../config -I../ssl -I../crypto" LDFLAGS="$(LDFLAGS)" OS="$(OS)" clean all
cp -p $(AXTLS_DIR)/_stage/libaxtls.a src
clean: luaclean
rm -f src/*.o src/*.so src/*.a
rm -f src/*.o src/*.so src/*.a src/*.dll
rm -f $(AXTLS_DIR)/.prepared
install: build
cp -pR dist$(LUA_MODULEDIR)/* $(LUA_MODULEDIR)
cp -pR dist$(LUA_LIBRARYDIR)/* $(LUA_LIBRARYDIR)

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libs/nixio/NOTICE Normal file
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@ -0,0 +1,10 @@
nixio - Linux I/O library for lua
Copyright 2009 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0.
Contains code from:
axTLS - Copyright 2008 Cameron Rich
Thanks for testing, feedback and code snippets:
John Crispin <blogic@openwrt.org>
Jo-Philipp Wich <xm@leipzig.freifunk.net>

16
libs/nixio/README
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@ -1,7 +1,13 @@
Building:
Use GNU Make.
make or gmake depending on your system.
Special make flags:
With axTLS (standard):
make
With OpenSSL:
make NIXIO_TLS=openssl
OS Override Target OS [Linux|FreeBSD|SunOS|Windows]
NIXIO_TLS TLS-Library [*openssl|axtls]
NIXIO_CROSS_CC MinGW CC (Windows) `which i586-mingw32msvc-cc`
LUA_CFLAGS Lua CFLAGS `pkg-config --cflags lua5.1`
LUA_TARGET Lua compile target [*source|strip|compile]
LUA_MODULEDIR Install LUA_PATH "/usr/share/lua/5.1"
LUA_LIBRARYDIR Install LUA_CPATH "/usr/lib/lua/5.1"

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--- General Information.
module "README"
--- General error handling information.
-- <ul>
-- <li> Most of the functions available in this library may fail. If any error
-- occurs the function returns <strong>nil or false</strong>, an error code
-- (usually errno) and an additional error message text (if avaialable).</li>
-- <li>At the moment false is only returned when a non-blocking I/O function
-- fails with EAGAIN, EWOULDBLOCK or WSAEWOULDBLOCK for any others nil is
-- returned as first parameter. Therefore you can use false to write portable
-- non-blocking I/O applications.</li>
-- <li>Note that the function documentation does only mention the return values
-- in case of a successful operation.</li>
-- <li>You can find a table of common error numbers and other useful constants
-- like signal numbers in <strong>nixio.const</strong> e.g. nixio.const.EINVAL,
-- nixio.const.SIGTERM, etc. For portability there is a second error constant
-- table <strong>nixio.const_sock</strong> for socket error codes. This might
-- be important if you are dealing with Windows applications, on POSIX however
-- const_sock is just an alias for const.</li>
-- <li>With some exceptions - which are explicitely stated in the function
-- documentation - all blocking functions are signal-protected and will not fail
-- with EINTR.</li>
-- <li>On POSIX the SIGPIPE signal will be set to ignore upon initialization.
-- You should restore the default behaviour or set a custom signal handler
-- in your program after loading nixio if you need this behaviour.</li>
-- </ul>
-- @class table
-- @name Errorhandling
-- @return !
--- Function conventions.
-- <br />In general all functions are namend and behave like their POSIX API
-- counterparts - where applicable - applying the following rules:
-- <ul>
-- <li>Functions should be named like the underlying POSIX API function ommiting
-- prefixes or suffixes - especially when placed in an object-context (
-- lockf -> File:lock, fsync -> File:sync, dup2 -> dup, ...)</li>
-- <li>If you are unclear about the behaviour of a function you should consult
-- your OS API documentation (e.g. the manpages).</li>
-- <li>If the name is significantly different from the POSIX-function, the
-- underlying function(s) are stated in the documentation.</li>
-- <li>Parameters should reflect those of the C-API, buffer length arguments and
-- by-reference parameters should be ommitted for pratical purposes.</li>
-- <li>If a C function accepts a bitfield as parameter, it should be translated
-- into lower case string flags representing the flags if the bitfield is the
-- last parameter and also ommiting prefixes or suffixes. (e.g. waitpid
-- (pid, &s, WNOHANG | WUNTRACED) -> waitpid(pid, "nohang", "untraced"),
-- getsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) ->
-- Socket:getopt("socket", "reuseaddr"), etc.) </li>
-- <li>If it is not applicable to provide a string representation of the
-- bitfield a bitfield generator helper is provided. It is named FUNCTION_flags.
-- (open("/tmp/test", O_RDONLY | O_NONBLOCK) -> open("/tmp/test", open_flags(
-- "rdonly", "nonblock")))</li>
-- </ul>
-- @class table
-- @name Functions
-- @return !
--- Platform information.
-- <ul>
-- <li>The minimum platform requirements are a decent POSIX 2001 support.
-- Builds are more or less tested on Linux, Solaris and FreeBSD. Builds for
-- Windows XP SP1 and later can be compiled with MinGW either from Windows
-- itself or using the MinGW cross-compiler. Earlier versions of Windows are not
-- supported.</li>
-- <li>In general all functions which don't have any remarks
-- in their documentation are available on all platforms.</li>
-- <li>Functions with a (POSIX), (Linux) or similar prefix are only available
-- on these specific platforms. Same appplies to parameters of functions
-- with a similar suffix.</li>
-- <li>Some functions might have limitations on some platforms. This should
-- be stated in the documentation. Please also consult your OS API
-- documentation.</li>
-- </ul>
-- @usage Tes
-- @class table
-- @name Platforms
-- @return !
--- Cryptography and TLS libraries.
-- <ul>
-- <li>Currently 2 underlying cryptography libraries are supported: openssl and
-- axTLS. The name of the library in use is written to
-- <strong>nixio.tls_provider</strong></li>
-- <li>You should whenever possible use openssl as axTLS has only limited
-- support. It does not provide support for non-blocking sockets and
-- is probably less audited than openssl.</li>
-- <li>However in embedded development if you don't need openssl anyway
-- you may safe an essential amount of flash space (about 1 MB for the openssl
-- library) by choosing axTLS over openssl.</li>
-- <li>As the supported Windows versions are not suitable for embedded devices
-- axTLS is at the moment not supported on Windows.</li>
-- </ul>
-- @usage Tes
-- @class table
-- @name TLS-Crypto
-- @return !

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libs/nixio/docsrc/nixio.CryptoHash.lua Normal file
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@ -0,0 +1,17 @@
--- Cryptographical Hash and HMAC object.
-- @cstyle instance
module "nixio.CryptoHash"
--- Add another chunk of data to be hashed.
-- @class function
-- @name CryptoHash.update
-- @param chunk Chunk of data
-- @return CryptoHash object (self)
--- Finalize the hash and return the digest.
-- @class function
-- @name CryptoHash.final
-- @usage You cannot call update on a hash object that was already finalized
-- you can however call final multiple times to get the digest.
-- @return hexdigest
-- @return buffer containing binary digest

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--- Large File Object.
-- Large file operations are supported up to 52 bits if the Lua number type is
-- double (default).
-- @cstyle instance
module "nixio.File"
--- Write to the file descriptor.
-- @class function
-- @name File.write
-- @usage <strong>Warning:</strong> It is not guaranteed that all data
-- in the buffer is written at once especially when dealing with pipes.
-- You have to check the return value - the number of bytes actually written -
-- or use the safe IO functions in the high-level IO utility module.
-- @usage Unlike standard Lua indexing the lowest offset and default is 0.
-- @param buffer Buffer holding the data to be written.
-- @param offset Offset to start reading the buffer from. (optional)
-- @param length Length of chunk to read from the buffer. (optional)
-- @return number of bytes written
--- Read from a file descriptor.
-- @class function
-- @name File.read
-- @usage <strong>Warning:</strong> It is not guaranteed that all requested data
-- is read at once especially when dealing with pipes.
-- You have to check the return value - the length of the buffer actually read -
-- or use the safe IO functions in the high-level IO utility module.
-- @usage The length of the return buffer is limited by the (compile time)
-- nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
-- Any read request greater than that will be safely truncated to this value.
-- @param length Amount of data to read (in Bytes).
-- @return buffer containing data successfully read
--- Reposition read / write offset of the file descriptor.
-- The seek will be done either from the beginning of the file or relative
-- to the current position or relative to the end.
-- @class function
-- @name File.seek
-- @usage This function calls lseek().
-- @param offset File Offset
-- @param whence Starting point [<strong>"set"</strong>, "cur", "end"]
-- @return new (absolute) offset position
--- Return the current read / write offset of the file descriptor.
-- @class function
-- @name File.tell
-- @usage This function calls lseek() with offset 0 from the current position.
-- @return offset position
--- Synchronizes the file with the storage device.
-- Returns when the file is successfully written to the disk.
-- @class function
-- @name File.sync
-- @usage This function calls fsync() when data_only equals false
-- otherwise fdatasync(), on Windows _commit() is used instead.
-- @usage fdatasync() is only supported by Linux and Solaris. For other systems
-- the <em>data_only</em> parameter is ignored and fsync() is always called.
-- @param data_only Do not synchronize the metadata. (optional, boolean)
-- @return true
--- Apply or test a lock on the file.
-- @class function
-- @name File.lock
-- @usage This function calls lockf() on POSIX and _locking() on Windows.
-- @usage The "lock" command is blocking, "tlock" is non-blocking,
-- "ulock" unlocks and "test" only tests for the lock.
-- @usage The "test" command is not available on Windows.
-- @usage Locks are by default advisory on POSIX, but mandatory on Windows.
-- @param command Locking Command ["lock", "tlock", "ulock", "test"]
-- @param length Amount of Bytes to lock from current offset (optional)
-- @return true
--- Get file status and attributes.
-- @class function
-- @name File.stat
-- @param field Only return a specific field, not the whole table (optional)
-- @usage This function calls fstat().
-- @return Table containing: <ul>
-- <li>atime = Last access timestamp</li>
-- <li>blksize = Blocksize (POSIX only)</li>
-- <li>blocks = Blocks used (POSIX only)</li>
-- <li>ctime = Creation timestamp</li>
-- <li>dev = Device ID</li>
-- <li>gid = Group ID</li>
-- <li>ino = Inode</li>
-- <li>modedec = Mode converted into a decimal number</li>
-- <li>modestr = Mode as string as returned by `ls -l`</li>
-- <li>mtime = Last modification timestamp</li>
-- <li>nlink = Number of links</li>
-- <li>rdev = Device ID (if special file)</li>
-- <li>size = Size in bytes</li>
-- <li>type = ["reg", "dir", "chr", "blk", "fifo", "lnk", "sock"]</li>
-- <li>uid = User ID</li>
-- </ul>
--- Close the file descriptor.
-- @class function
-- @name File.close
-- @return true
--- Get the number of the filedescriptor.
-- @class function
-- @name File.fileno
-- @return file descriptor number
--- (POSIX) Set the blocking mode of the file descriptor.
-- @class function
-- @name File.setblocking
-- @param blocking (boolean)
-- @return true

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--- Socket Object.
-- Supports IPv4, IPv6 and UNIX (POSIX only) families.
-- @cstyle instance
module "nixio.Socket"
--- Get the local address of a socket.
-- @class function
-- @name Socket.getsockname
-- @return IP-Address
-- @return Port
--- Get the peer address of a socket.
-- @class function
-- @name Socket.getpeername
-- @return IP-Address
-- @return Port
--- Bind the socket to a network address.
-- @class function
-- @name Socket.bind
-- @usage This function calls getaddrinfo() and bind() but NOT listen().
-- @usage If <em>host</em> is a domain name it will be looked up and bind()
-- tries the IP-Addresses in the order returned by the DNS resolver
-- until the bind succeeds.
-- @usage UNIX sockets ignore the <em>port</em>,
-- and interpret <em>host</em> as a socket path.
-- @param host Host (optional, default: all addresses)
-- @param port Port or service description
-- @return true
--- Connect the socket to a network address.
-- @class function
-- @name Socket.connect
-- @usage This function calls getaddrinfo() and connect().
-- @usage If <em>host</em> is a domain name it will be looked up and connect()
-- tries the IP-Addresses in the order returned by the DNS resolver
-- until the connect succeeds.
-- @usage UNIX sockets ignore the <em>port</em>,
-- and interpret <em>host</em> as a socket path.
-- @param host Hostname or IP-Address (optional, default: localhost)
-- @param port Port or service description
-- @return true
--- Listen for connections on the socket.
-- @class function
-- @name Socket.listen
-- @param backlog Length of queue for pending connections
-- @return true
--- Accept a connection on the socket.
-- @class function
-- @name Socket.accept
-- @return Socket Object
-- @return Peer IP-Address
-- @return Peer Port
--- Send a message on the socket specifying the destination.
-- @class function
-- @name Socket.sendto
-- @usage <strong>Warning:</strong> It is not guaranteed that all data
-- in the buffer is written at once.
-- You have to check the return value - the number of bytes actually written -
-- or use the safe IO functions in the high-level IO utility module.
-- @usage Unlike standard Lua indexing the lowest offset and default is 0.
-- @param buffer Buffer holding the data to be written.
-- @param host Target IP-Address
-- @param port Target Port
-- @param offset Offset to start reading the buffer from. (optional)
-- @param length Length of chunk to read from the buffer. (optional)
-- @return number of bytes written
--- Send a message on the socket.
-- This function is identical to sendto except for the missing destination
-- paramters. See the sendto description for a detailed description.
-- @class function
-- @name Socket.send
-- @param buffer Buffer holding the data to be written.
-- @param offset Offset to start reading the buffer from. (optional)
-- @param length Length of chunk to read from the buffer. (optional)
-- @see Socket.sendto
-- @return number of bytes written
--- Send a message on the socket (This is an alias for send).
-- See the sendto description for a detailed description.
-- @class function
-- @name Socket.write
-- @param buffer Buffer holding the data to be written.
-- @param offset Offset to start reading the buffer from. (optional)
-- @param length Length of chunk to read from the buffer. (optional)
-- @see Socket.sendto
-- @return number of bytes written
--- Receive a message on the socket including the senders source address.
-- @class function
-- @name Socket.recvfrom
-- @usage <strong>Warning:</strong> It is not guaranteed that all requested data
-- is read at once.
-- You have to check the return value - the length of the buffer actually read -
-- or use the safe IO functions in the high-level IO utility module.
-- @usage The length of the return buffer is limited by the (compile time)
-- nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
-- Any read request greater than that will be safely truncated to this value.
-- @param length Amount of data to read (in Bytes).
-- @return buffer containing data successfully read
-- @return host IP-Address of the sender
-- @return port Port of the sender
--- Receive a message on the socket.
-- This function is identical to recvfrom except that it does not return
-- the sender's source address. See the recvfrom description for more details.
-- @class function
-- @name Socket.recv
-- @param length Amount of data to read (in Bytes).
-- @see Socket.recvfrom
-- @return buffer containing data successfully read
--- Receive a message on the socket (This is an alias for recv).
-- See the recvfrom description for more details.
-- @class function
-- @name Socket.read
-- @param length Amount of data to read (in Bytes).
-- @see Socket.recvfrom
-- @return buffer containing data successfully read
--- Close the socket.
-- @class function
-- @name Socket.close
-- @return true
--- Shut down part of a full-duplex connection.
-- @class function
-- @name Socket.shutdown
-- @param how (optional, default: rdwr) ["rdwr", "rd", "wr"]
-- @return true
--- Get the number of the filedescriptor.
-- @class function
-- @name Socket.fileno
-- @return file descriptor number
--- Set the blocking mode of the socket.
-- @class function
-- @name Socket.setblocking
-- @param blocking (boolean)
-- @return true
--- Set a socket option.
-- @class function
-- @name Socket.setopt
-- @param level Level ["socket", "tcp", "ip", "ipv6"]
-- @param option Option ["keepalive", "reuseaddr", "sndbuf", "rcvbuf",
-- "priority", "broadcast", "linger", "sndtimeo", "rcvtimeo", "dontroute",
-- "bindtodevice", "error", "oobinline", "cork" (TCP), "nodelay" (TCP),
-- "mtu" (IP, IPv6), "hdrincl" (IP), "multicast_ttl" (IP), "multicast_loop"
-- (IP, IPv6), "multicast_if" (IP, IPv6), "v6only" (IPv6), "multicast_hops"
-- (IPv6), "add_membership" (IP, IPv6), "drop_membership" (IP, IPv6)]
-- @param value Value
-- @return true
--- Get a socket option.
-- @class function
-- @name Socket.getopt
-- @param level Level ["socket", "tcp", "ip", "ipv6"]
-- @param option Option ["keepalive", "reuseaddr", "sndbuf", "rcvbuf",
-- "priority", "broadcast", "linger", "sndtimeo", "rcvtimeo", "dontroute",
-- "bindtodevice", "error", "oobinline", "cork" (TCP), "nodelay" (TCP),
-- "mtu" (IP, IPv6), "hdrincl" (IP), "multicast_ttl" (IP), "multicast_loop"
-- (IP, IPv6), "multicast_if" (IP, IPv6), "v6only" (IPv6), "multicast_hops"
-- (IPv6), "add_membership" (IP, IPv6), "drop_membership" (IP, IPv6)]
-- @return Value

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--- Transport Layer Security Context Object.
-- @cstyle instance
module "nixio.TLSContext"
--- Create a TLS Socket from a socket descriptor.
-- @class function
-- @name TLSContext.create
-- @param socket Socket Object
-- @return TLSSocket Object
--- Assign a PEM certificate to this context.
-- @class function
-- @name TLSContext.set_cert
-- @usage This function calls SSL_CTX_use_certificate_chain_file().
-- @param path Certificate File path
-- @return true
--- Assign a PEM private key to this context.
-- @class function
-- @name TLSContext.set_key
-- @usage This function calls SSL_CTX_use_PrivateKey_file().
-- @param path Private Key File path
-- @return true
--- Set the available ciphers for this context.
-- @class function
-- @name TLSContext.set_ciphers
-- @usage This function calls SSL_CTX_set_cipher_list().
-- @param cipherlist String containing a list of ciphers
-- @return true
--- Set the verification depth of this context.
-- @class function
-- @name TLSContext.set_verify_depth
-- @usage This function calls SSL_CTX_set_verify_depth().
-- @param depth Depth
-- @return true
--- Set the verification flags of this context.
-- @class function
-- @name TLSContext.set_verify
-- @usage This function calls SSL_CTX_set_verify().
-- @param flag1 First Flag ["none", "peer", "verify_fail_if_no_peer_cert",
-- "client_once"]
-- @param ... More Flags [-"-]
-- @return true

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--- TLS Socket Object.
-- TLS Sockets contain the underlying socket and context in the fields
-- "socket" and "context".
-- @cstyle instance
module "nixio.TLSSocket"
--- Initiate the TLS handshake as client with the server.
-- @class function
-- @name TLSSocket.connect
-- @usage This function calls SSL_connect().
-- @usage You have to call either connect or accept before transmitting data.
-- @see TLSSocket.accept
-- @return true
--- Wait for a TLS handshake from a client.
-- @class function
-- @name TLSSocket.accept
-- @usage This function calls SSL_accept().
-- @usage You have to call either connect or accept before transmitting data.
-- @see TLSSocket.connect
-- @return true
--- Send a message to the socket.
-- @class function
-- @name TLSSocket.send
-- @usage This function calls SSL_write().
-- @usage <strong>Warning:</strong> It is not guaranteed that all data
-- in the buffer is written at once.
-- You have to check the return value - the number of bytes actually written -
-- or use the safe IO functions in the high-level IO utility module.
-- @usage Unlike standard Lua indexing the lowest offset and default is 0.
-- @param buffer Buffer holding the data to be written.
-- @param offset Offset to start reading the buffer from. (optional)
-- @param length Length of chunk to read from the buffer. (optional)
-- @return number of bytes written
--- Send a message on the socket (This is an alias for send).
-- See the send description for a detailed description.
-- @class function
-- @name TLSSocket.write
-- @param buffer Buffer holding the data to be written.
-- @param offset Offset to start reading the buffer from. (optional)
-- @param length Length of chunk to read from the buffer. (optional)
-- @see TLSSocket.send
-- @return number of bytes written
--- Receive a message on the socket.
-- @class function
-- @name TLSSocket.recv
-- @usage This function calls SSL_read().
-- @usage <strong>Warning:</strong> It is not guaranteed that all requested data
-- is read at once.
-- You have to check the return value - the length of the buffer actually read -
-- or use the safe IO functions in the high-level IO utility module.
-- @usage The length of the return buffer is limited by the (compile time)
-- nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
-- Any read request greater than that will be safely truncated to this value.
-- @param length Amount of data to read (in Bytes).
-- @return buffer containing data successfully read
--- Receive a message on the socket (This is an alias for recv).
-- See the recv description for more details.
-- @class function
-- @name TLSSocket.read
-- @param length Amount of data to read (in Bytes).
-- @see TLSSocket.recv
-- @return buffer containing data successfully read
--- Shut down the TLS connection.
-- @class function
-- @name TLSSocket.shutdown
-- @usage This function calls SSL_shutdown().
-- @return true

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--- Unified high-level I/O utility API for Files, Sockets and TLS-Sockets.
-- These functions are added to the object function tables by doing <strong>
-- require "nixio.util"</strong>, can be used on all nixio IO Descriptors and
-- are based on the shared low-level read() and write() functions.
-- @cstyle instance
module "nixio.UnifiedIO"
--- Test whether the I/O-Descriptor is a socket.
-- @class function
-- @name UnifiedIO.is_socket
-- @return boolean
--- Test whether the I/O-Descriptor is a TLS socket.
-- @class function
-- @name UnifiedIO.is_tls_socket
-- @return boolean
--- Test whether the I/O-Descriptor is a file.
-- @class function
-- @name UnifiedIO.is_file
-- @return boolean
--- Read a block of data and wait until all data is available.
-- @class function
-- @name UnifiedIO.readall
-- @usage This function uses the low-level read function of the descriptor.
-- @usage If the length parameter is ommited, this function returns all data
-- that can be read before an end-of-file, end-of-stream, connection shutdown
-- or similar happens.
-- @usage If the descriptor is non-blocking this function may fail with EAGAIN.
-- @param length Bytes to read (optional)
-- @return data that was successfully read if no error occured
-- @return - reserved for error code -
-- @return - reserved for error message -
-- @return data that was successfully read even if an error occured
--- Write a block of data and wait until all data is written.
-- @class function
-- @name UnifiedIO.writeall
-- @usage This function uses the low-level write function of the descriptor.
-- @usage If the descriptor is non-blocking this function may fail with EAGAIN.
-- @param block Bytes to write
-- @return bytes that were successfully written if no error occured
-- @return - reserved for error code -
-- @return - reserved for error message -
-- @return bytes that were successfully written even if an error occured
--- Create a line-based iterator.
-- Lines may end with either \n or \r\n, these control chars are not included
-- in the return value.
-- @class function
-- @name UnifiedIO.linesource
-- @usage This function uses the low-level read function of the descriptor.
-- @usage <strong>Note:</strong> This function uses an internal buffer to read
-- ahead. Do NOT mix calls to read(all) and the returned iterator. If you want
-- to stop reading line-based and want to use the read(all) functions instead
-- you can pass "true" to the iterator which will flush the buffer
-- and return the bufferd data.
-- @usage If the limit parameter is ommited, this function uses the nixio
-- buffersize (8192B by default).
-- @usage If the descriptor is non-blocking the iterator may fail with EAGAIN.
-- @usage The iterator can be used as an LTN12 source.
-- @param limit Line limit
-- @return Line-based Iterator
--- Create a block-based iterator.
-- @class function
-- @name UnifiedIO.blocksource
-- @usage This function uses the low-level read function of the descriptor.
-- @usage The blocksize given is only advisory and to be seen as an upper limit,
-- if an underlying read returns less bytes the chunk is nevertheless returned.
-- @usage If the limit parameter is ommited, the iterator returns data
-- until an end-of-file, end-of-stream, connection shutdown or similar happens.
-- @usage The iterator will not buffer so it is safe to mix with calls to read.
-- @usage If the descriptor is non-blocking the iterator may fail with EAGAIN.
-- @usage The iterator can be used as an LTN12 source.
-- @param blocksize Advisory blocksize (optional)
-- @param limit Amount of data to consume (optional)
-- @return Block-based Iterator
--- Create a sink.
-- This sink will simply write all data that it receives and optionally
-- close the descriptor afterwards.
-- @class function
-- @name UnifiedIO.sink
-- @usage This function uses the writeall function of the descriptor.
-- @usage If the descriptor is non-blocking the sink may fail with EAGAIN.
-- @usage The iterator can be used as an LTN12 sink.
-- @param close_when_done (optional, boolean)
-- @return Sink
--- Copy data from the current descriptor to another one.
-- @class function
-- @name UnifiedIO.copy
-- @usage This function uses the blocksource function of the source descriptor
-- and the sink function of the target descriptor.
-- @usage If the limit parameter is ommited, data is copied
-- until an end-of-file, end-of-stream, connection shutdown or similar happens.
-- @usage If the descriptor is non-blocking the function may fail with EAGAIN.
-- @param fdout Target Descriptor
-- @param size Bytes to copy (optional)
-- @return bytes that were successfully written if no error occured
-- @return - reserved for error code -
-- @return - reserved for error message -
-- @return bytes that were successfully written even if an error occured
--- Copy data from the current descriptor to another one using kernel-space
-- copying if possible.
-- @class function
-- @name UnifiedIO.copyz
-- @usage This function uses the sendfile() syscall to copy the data or the
-- blocksource function of the source descriptor and the sink function
-- of the target descriptor as a fallback mechanism.
-- @usage Support for splice() on Linux is not implemented yet.
-- @usage If the limit parameter is ommited, data is copied
-- until an end-of-file, end-of-stream, connection shutdown or similar happens.
-- @usage If the descriptor is non-blocking the function may fail with EAGAIN.
-- @param fdout Target Descriptor
-- @param size Bytes to copy (optional)
-- @return bytes that were successfully written if no error occured
-- @return - reserved for error code -
-- @return - reserved for error message -
-- @return bytes that were successfully written even if an error occured
--- Close the descriptor.
-- @class function
-- @name UnifiedIO.close
-- @usage If the descriptor is a TLS-socket the underlying descriptor is
-- closed without touching the TLS connection.
-- @return true

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--- Binary operations and conversion.
module "nixio.bin"
--- Return a hexadecimal ASCII represantation of the content of a buffer.
-- @class function
-- @name hexlify
-- @param buffer Buffer
-- @return representation using characters [0-9a-f]
--- Return a binary buffer from a hexadecimal ASCII representation.
-- @class function
-- @name unhexlify
-- @param hexvalue representation using characters [0-9a-f]
-- @return binary data
--- Calculate the CRC32 value of a buffer.
-- @class function
-- @name crc32
-- @param buffer Buffer
-- @param initial Initial CRC32 value (optional)
-- @return crc32 value
--- Base64 encode a given buffer.
-- @class function
-- @name b64encode
-- @param buffer Buffer
-- @return base64 encoded buffer
--- Base64 decode a given buffer.
-- @class function
-- @name b64decode
-- @param buffer Base 64 Encoded data
-- @return binary data

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--- Bitfield operators and mainpulation functions.
-- Can be used as a drop-in replacement for bitlib.
module "nixio.bit"
--- Bitwise OR several numbers.
-- @class function
-- @name bor
-- @param oper1 First Operand
-- @param oper2 Second Operand
-- @param ... More Operands
-- @return number
--- Bitwise AND several numbers.
-- @class function
-- @name band
-- @param oper1 First Operand
-- @param oper2 Second Operand
-- @param ... More Operands
-- @return number
--- Bitwise XOR several numbers.
-- @class function
-- @name bxor
-- @param oper1 First Operand
-- @param oper2 Second Operand
-- @param ... More Operands
-- @return number
--- Left shift a number.
-- @class function
-- @name shl
-- @param oper number
-- @param shift bits to shift
-- @return number
--- Right shift a number.
-- @class function
-- @name shr
-- @param oper number
-- @param shift bits to shift
-- @return number
--- Arithmetically right shift a number.
-- @class function
-- @name ashr
-- @param oper number
-- @param shift bits to shift
-- @return number
--- Integer division of 2 or more numbers.
-- @class function
-- @name div
-- @param oper1 Operand 1
-- @param oper2 Operand 2
-- @param ... More Operands
-- @return number
--- Cast a number to the bit-operating range.
-- @class function
-- @name cast
-- @param oper number
-- @return number
--- Sets one or more flags of a bitfield.
-- @class function
-- @name set
-- @param bitfield Bitfield
-- @param flag1 First Flag
-- @param ... More Flags
-- @return altered bitfield
--- Unsets one or more flags of a bitfield.
-- @class function
-- @name unset
-- @param bitfield Bitfield
-- @param flag1 First Flag
-- @param ... More Flags
-- @return altered bitfield
--- Checks whether given flags are set in a bitfield.
-- @class function
-- @name check
-- @param bitfield Bitfield
-- @param flag1 First Flag
-- @param ... More Flags
-- @return true when all flags are set, otherwise false

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--- Cryptographical library.
module "nixio.crypto"
--- Create a hash object.
-- @class function
-- @name nixio.crypto.hash
-- @param algo Algorithm ["sha1", "md5"]
-- @return CryptoHash Object
--- Create a HMAC object.
-- @class function
-- @name nixio.crypto.hmac
-- @param algo Algorithm ["sha1", "md5"]
-- @param key HMAC-Key
-- @return CryptoHash Object

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--- Low-level and high-level filesystem manipulation library.
module "nixio.fs"
--- Check user's permission on a file.
-- @class function
-- @name nixio.fs.access
-- @param path Path
-- @param mode1 First Mode to check ["f", "r", "w", "x"]
-- @param ... More Modes to check [-"-]
-- @return true
--- Strip the directory part from a path.
-- @class function
-- @name nixio.fs.basename
-- @usage This function cannot fail and will never return nil.
-- @param path Path
-- @return basename
--- Strip the base from a path.
-- @class function
-- @name nixio.fs.dirname
-- @usage This function cannot fail and will never return nil.
-- @param path Path
-- @return dirname
--- Return the cannonicalized absolute pathname.
-- @class function
-- @name nixio.fs.realpath
-- @param path Path
-- @return absolute path
--- Remove a file or directory.
-- @class function
-- @name nixio.fs.remove
-- @param path Path
-- @return true
--- Delete a name and - if no links are left - the associated file.
-- @class function
-- @name nixio.fs.unlink
-- @param path Path
-- @return true
--- Renames a file or directory.
-- @class function
-- @name nixio.fs.rename
-- @param src Source path
-- @param dest Destination path
-- @usage It is normally not possible to rename files accross fileystems.
-- @return true
--- Remove an empty directory.
-- @class function
-- @name nixio.fs.rmdir
-- @param path Path
-- @return true
--- Create a new directory.
-- @class function
-- @name nixio.fs.mkdir
-- @param path Path
-- @param mode File mode (optional, see chmod and umask)
-- @see nixio.fs.chmod
-- @see nixio.umask
-- @return true
--- Change the file mode.
-- @class function
-- @name nixio.fs.chmod
-- @usage Windows only supports setting the write-protection through the
-- "Writable to others" bit.
-- @usage <strong>Notice:</strong> The mode-flag for the functions
-- open, mkdir, mkfifo are affected by the umask.
-- @param path Path
-- @param mode File mode
-- [decimal mode number, "[-r][-w][-xsS][-r][-w][-xsS][-r][-w][-xtT]"]
-- @see nixio.umask
-- @return true
--- Iterate over the entries of a directory.
-- @class function
-- @name nixio.fs.dir
-- @usage The special entries "." and ".." are omitted.
-- @param path Path
-- @return directory iterator returning one entry per call
--- Create a hard link.
-- @class function
-- @name nixio.fs.link
-- @usage This function calls link() on POSIX and CreateHardLink() on Windows.
-- @param oldpath Path
-- @param newpath Path
-- @return true
--- Change file last access and last modification time.
-- @class function
-- @name nixio.fs.utimes
-- @param path Path
-- @param actime Last access timestamp (optional, default: current time)
-- @param mtime Last modification timestamp (optional, default: actime)
-- @return true
--- Get file status and attributes.
-- @class function
-- @name nixio.fs.stat
-- @param path Path
-- @param field Only return a specific field, not the whole table (optional)
-- @return Table containing: <ul>
-- <li>atime = Last access timestamp</li>
-- <li>blksize = Blocksize (POSIX only)</li>
-- <li>blocks = Blocks used (POSIX only)</li>
-- <li>ctime = Creation timestamp</li>
-- <li>dev = Device ID</li>
-- <li>gid = Group ID</li>
-- <li>ino = Inode</li>
-- <li>modedec = Mode converted into a decimal number</li>
-- <li>modestr = Mode as string as returned by `ls -l`</li>
-- <li>mtime = Last modification timestamp</li>
-- <li>nlink = Number of links</li>
-- <li>rdev = Device ID (if special file)</li>
-- <li>size = Size in bytes</li>
-- <li>type = ["reg", "dir", "chr", "blk", "fifo", "lnk", "sock"]</li>
-- <li>uid = User ID</li>
-- </ul>
--- Get file status and attributes and do not resolve if target is a symlink.
-- @class function
-- @name nixio.fs.lstat
-- @param path Path
-- @param field Only return a specific field, not the whole table (optional)
-- @see nixio.fs.stat
-- @return Table containing attributes (see stat for a detailed description)
--- (POSIX) Change owner and group of a file.
-- @class function
-- @name nixio.fs.chown
-- @param path Path
-- @param user User ID or Username (optional)
-- @param group Group ID or Groupname (optional)
-- @return true
--- (POSIX) Change owner and group of a file and do not resolve
-- if target is a symlink.
-- @class function
-- @name nixio.fs.lchown
-- @param path Path
-- @param user User ID or Username (optional)
-- @param group Group ID or Groupname (optional)
-- @return true
--- (POSIX) Create a FIFO (named pipe).
-- @class function
-- @name nixio.fs.mkfifo
-- @param path Path
-- @param mode File mode (optional, see chmod and umask)
-- @see nixio.fs.chmod
-- @see nixio.umask
-- @return true
--- (POSIX) Create a symbolic link.
-- @class function
-- @name nixio.fs.symlink
-- @param oldpath Path
-- @param newpath Path
-- @return true
--- (POSIX) Read the target of a symbolic link.
-- @class function
-- @name nixio.fs.readlink
-- @param path Path
-- @return target path
--- (POSIX) Find pathnames matching a pattern.
-- @class function
-- @name nixio.fs.glob
-- @param pattern Pattern
-- @return path iterator
-- @return number of matches
--- (POSIX) Get filesystem statistics.
-- @class function
-- @name nixio.fs.statvfs
-- @param path Path to any file within the filesystem.
-- @return Table containing: <ul>
-- <li>bavail = available blocks</li>
-- <li>bfree = free blocks</li>
-- <li>blocks = number of fragments</li>
-- <li>frsize = fragment size</li>
-- <li>favail = available inodes</li>
-- <li>ffree = free inodes</li>
-- <li>files = inodes</li>
-- <li>flag = flags</li>
-- <li>fsid = filesystem ID</li>
-- <li>namemax = maximum filename length</li>
-- </ul>
--- Read the contents of a file into a buffer.
-- @class function
-- @name nixio.fs.readfile
-- @param path Path
-- @param limit Maximum bytes to read (optional)
-- @return file contents
--- Write a buffer into a file truncating the file first.
-- @class function
-- @name nixio.fs.writefile
-- @param path Path
-- @param data Data to write
-- @return true
--- Copy data between files.
-- @class function
-- @name nixio.fs.datacopy
-- @param src Source file path
-- @param dest Destination file path
-- @param limit Maximum bytes to copy (optional)
-- @return true
--- Copy a file, directory or symlink non-recursively preserving file mode,
-- timestamps, owner and group.
-- @class function
-- @name nixio.fs.copy
-- @usage The destination must always be a full destination path e.g. do not
-- omit the basename even if source and destination basename are equal.
-- @param src Source path
-- @param dest Destination path
-- @return true
--- Rename a file, directory or symlink non-recursively across filesystems.
-- @class function
-- @name nixio.fs.move
-- @usage The destination must always be a full destination path e.g. do not
-- omit the basename even if source and destination basename are equal.
-- @param src Source path
-- @param dest Destination path
-- @return true
--- Create a directory and all needed parent directories recursively.
-- @class function
-- @name nixio.fs.mkdirr
-- @param dest Destination path
-- @param mode File mode (optional, see chmod and umask)
-- @see nixio.fs.chmod
-- @see nixio.umask
-- @return true
--- Rename a file, directory or symlink recursively across filesystems.
-- @class function
-- @name nixio.fs.mover
-- @usage The destination must always be a full destination path e.g. do not
-- omit the basename even if source and destination basename are equal.
-- @param src Source path
-- @param dest Destination path
-- @return true
--- Copy a file, directory or symlink recursively preserving file mode,
-- timestamps, owner and group.
-- @class function
-- @name nixio.fs.copyr
-- @usage The destination must always be a full destination path e.g. do not
-- omit the basename even if source and destination basename are equal.
-- @param src Source path
-- @param dest Destination path
-- @return true

416
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@ -0,0 +1,416 @@
--- General POSIX IO library.
module "nixio"
--- Look up a hostname and service via DNS.
-- @class function
-- @name nixio.getaddrinfo
-- @param host hostname to lookup (optional)
-- @param family address family [<strong>"any"</strong>, "inet", "inet6"]
-- @param service service name or port (optional)
-- @return Table containing one or more tables containing: <ul>
-- <li>family = ["inet", "inet6"]</li>
-- <li>socktype = ["stream", "dgram", "raw"]</li>
-- <li>address = Resolved IP-Address</li>
-- <li>port = Resolved Port (if service was given)</li>
-- </ul>
--- Reverse look up an IP-Address via DNS.
-- @class function
-- @name nixio.getnameinfo
-- @param ipaddr IPv4 or IPv6-Address
-- @return FQDN
--- Create a new socket and bind it to a network address.
-- This function is a shortcut for calling nixio.socket and then bind()
-- on the socket object.
-- @usage This functions calls getaddrinfo(), socket(),
-- setsockopt() and bind() but NOT listen().
-- @usage The <em>reuseaddr</em>-option is automatically set before binding.
-- @class function
-- @name nixio.bind
-- @param host Hostname or IP-Address (optional, default: all addresses)
-- @param port Port or service description
-- @param family Address family [<strong>"any"</strong>, "inet", "inet6"]
-- @param socktype Socket Type [<strong>"stream"</strong>, "dgram"]
-- @return Socket Object
--- Create a new socket and connect to a network address.
-- This function is a shortcut for calling nixio.socket and then connect()
-- on the socket object.
-- @usage This functions calls getaddrinfo(), socket() and connect().
-- @class function
-- @name nixio.connect
-- @param host Hostname or IP-Address (optional, default: localhost)
-- @param port Port or service description
-- @param family Address family [<strong>"any"</strong>, "inet", "inet6"]
-- @param socktype Socket Type [<strong>"stream"</strong>, "dgram"]
-- @return Socket Object
--- Open a file.
-- @class function
-- @name nixio.open
-- @usage Although this function also supports the traditional fopen()
-- file flags it does not create a file stream but uses the open() syscall.
-- @param path Filesystem path to open
-- @param flags Flag string or number (see open_flags).
-- [<strong>"r"</strong>, "r+", "w", "w+", "a", "a+"]
-- @param mode File mode for newly created files (see chmod, umask).
-- @see nixio.umask
-- @see nixio.open_flags
-- @return File Object
--- Generate flags for a call to open().
-- @class function
-- @name nixio.open_flags
-- @usage This function cannot fail and will never return nil.
-- @usage The "nonblock" and "ndelay" flags are aliases.
-- @usage The "nonblock", "ndelay" and "sync" flags are no-ops on Windows.
-- @param flag1 First Flag ["append", "creat", "excl", "nonblock", "ndelay",
-- "sync", "trunc", "rdonly", "wronly", "rdwr"]
-- @param ... More Flags [-"-]
-- @return flag to be used as second paramter to open
--- Duplicate a file descriptor.
-- @class function
-- @name nixio.dup
-- @usage This funcation calls dup2() if <em>newfd</em> is set, otherwise dup().
-- @param oldfd Old descriptor [File Object, Socket Object (POSIX only)]
-- @param newfd New descriptor to serve as copy (optional)
-- @return File Object of new descriptor
--- Create a pipe.
-- @class function
-- @name nixio.pipe
-- @return File Object of the read end
-- @return File Object of the write end
--- Get the last system error code.
-- @class function
-- @name nixio.errno
-- @return Error code
--- Get the error message for the corresponding error code.
-- @class function
-- @name nixio.strerror
-- @param errno System error code
-- @return Error message
--- Sleep for a specified amount of time.
-- @class function
-- @usage Not all systems support nanosecond precision but you can expect
-- to have at least maillisecond precision.
-- @usage This function is not signal-protected and may fail with EINTR.
-- @param seconds Seconds to wait (optional)
-- @param nanoseconds Nanoseconds to wait (optional)
-- @name nixio.nanosleep
-- @return true
--- Generate events-bitfield or parse revents-bitfield for poll.
-- @class function
-- @name nixio.poll_flags
-- @param mode1 revents-Flag bitfield returned from poll to parse OR
-- ["in", "out", "err", "pri" (POSIX), "hup" (POSIX), "nval" (POSIX)]
-- @param ... More mode strings for generating the flag [-"-]
-- @see nixio.poll
-- @return table with boolean fields reflecting the mode parameter
-- <strong>OR</strong> bitfield to use for the events-Flag field
--- Wait for some event on a file descriptor.
-- poll() sets the revents-field of the tables provided by fds to a bitfield
-- indicating the events that occured.
-- @class function
-- @usage This function works in-place on the provided table and only
-- writes the revents field, you can use other fields on your demand.
-- @usage All metamethods on the tables provided as fds are ignored.
-- @usage The revents-fields are not reset when the call times out.
-- You have to check the first return value to be 0 to handle this case.
-- @usage If you want to wait on a TLS-Socket you have to use the underlying
-- socket instead.
-- @usage On Windows poll is emulated through select(), can only be used
-- on socket descriptors and cannot take more than 64 descriptors per call.
-- @usage This function is not signal-protected and may fail with EINTR.
-- @param fds Table containing one or more tables containing <ul>
-- <li> fd = I/O Descriptor [Socket Object, File Object (POSIX)]</li>
-- <li> events = events to wait for (bitfield generated with poll_flags)</li>
-- </ul>
-- @param timeout Timeout in milliseconds
-- @name nixio.poll
-- @see nixio.poll_flags
-- @return number of ready IO descriptors
-- @return the fds-table with revents-fields set
--- (POSIX) Clone the current process.
-- @class function
-- @name nixio.fork
-- @return the child process id for the parent process, 0 for the child process
--- (POSIX) Send a signal to one or more processes.
-- @class function
-- @name nixio.kill
-- @param target Target process of process group.
-- @param signal Signal to send
-- @return true
--- (POSIX) Get the parent process id of the current process.
-- @class function
-- @name nixio.getppid
-- @return parent process id
--- (POSIX) Get the user id of the current process.
-- @class function
-- @name nixio.getuid
-- @return process user id
--- (POSIX) Get the group id of the current process.
-- @class function
-- @name nixio.getgid
-- @return process group id
--- (POSIX) Set the group id of the current process.
-- @class function
-- @name nixio.setgid
-- @param gid New Group ID
-- @return true
--- (POSIX) Set the user id of the current process.
-- @class function
-- @name nixio.setuid
-- @param gid New User ID
-- @return true
--- (POSIX) Change priority of current process.
-- @class function
-- @name nixio.nice
-- @param nice Nice Value
-- @return true
--- (POSIX) Create a new session and set the process group ID.
-- @class function
-- @name nixio.setsid
-- @return session id
--- (POSIX) Wait for a process to change state.
-- @class function
-- @name nixio.waitpid
-- @usage If the "nohang" is given this function becomes non-blocking.
-- @param pid Process ID (optional, default: any childprocess)
-- @param flag1 Flag (optional) ["nohang", "untraced", "continued"]
-- @param ... More Flags [-"-]
-- @return process id of child or 0 if no child has changed state
-- @return ["exited", "signaled", "stopped"]
-- @return [exit code, terminate signal, stop signal]
--- (POSIX) Get process times.
-- @class function
-- @name nixio.times
-- @return Table containing: <ul>
-- <li>utime = user time</li>
-- <li>utime = system time</li>
-- <li>cutime = children user time</li>
-- <li>cstime = children system time</li>
-- </ul>
--- (POSIX) Get information about current system and kernel.
-- @class function
-- @name nixio.uname
-- @return Table containing: <ul>
-- <li>sysname = operating system</li>
-- <li>nodename = network name (usually hostname)</li>
-- <li>release = OS release</li>
-- <li>version = OS version</li>
-- <li>machine = hardware identifier</li>
-- </ul>
--- Change the working directory.
-- @class function
-- @name nixio.chdir
-- @param path New working directory
-- @return true
--- Ignore or use set the default handler for a signal.
-- @class function
-- @name nixio.signal
-- @param signal Signal
-- @param handler ["ign", "dfl"]
-- @return true
--- Get the ID of the current process.
-- @class function
-- @name nixio.getpid
-- @return process id
--- Get the current working directory.
-- @class function
-- @name nixio.getcwd
-- @return workign directory
--- Get the current environment table or a specific environment variable.
-- @class function
-- @name nixio.getenv
-- @param variable Variable (optional)
-- @return environment table or single environment variable
--- Set or unset a environment variable.
-- @class function
-- @name nixio.setenv
-- @usage The environment variable will be unset if value is ommited.
-- @param variable Variable
-- @param value Value (optional)
-- @return true
--- Execute a file to replace the current process.
-- @class function
-- @name nixio.exec
-- @usage The name of the executable is automatically passed as argv[0]
-- @usage This function does not return on success.
-- @param executable Executable
-- @param ... Parameters
--- Invoke the shell and execute a file to replace the current process.
-- @class function
-- @name nixio.execp
-- @usage The name of the executable is automatically passed as argv[0]
-- @usage This function does not return on success.
-- @param executable Executable
-- @param ... Parameters
--- Execute a file with a custom environment to replace the current process.
-- @class function
-- @name nixio.exece
-- @usage The name of the executable is automatically passed as argv[0]
-- @usage This function does not return on success.
-- @param executable Executable
-- @param arguments Argument Table
-- @param environment Environment Table (optional)
--- Sets the file mode creation mask.
-- @class function
-- @name nixio.umask
-- @param mask New creation mask (see chmod for format specifications)
-- @return the old umask as decimal mode number
-- @return the old umask as mode string
--- (Linux) Get overall system statistics.
-- @class function
-- @name nixio.sysinfo
-- @return Table containing: <ul>
-- <li>uptime = system uptime in seconds</li>
-- <li>loads = {loadavg1, loadavg5, loadavg15}</li>
-- <li>totalram = total RAM</li>
-- <li>freeram = free RAM</li>
-- <li>sharedram = shared RAM</li>
-- <li>bufferram = buffered RAM</li>
-- <li>totalswap = total SWAP</li>
-- <li>freeswap = free SWAP</li>
-- <li>procs = number of running processes</li>
-- </ul>
--- Create a new socket.
-- @class function
-- @name nixio.socket
-- @param domain Domain ["inet", "inet6", "unix"]
-- @param type Type ["stream", "dgram", "raw"]
-- @return Socket Object
--- (POSIX) Send data from a file to a socket in kernel-space.
-- @class function
-- @name nixio.sendfile
-- @param socket Socket Object
-- @param file File Object
-- @param length Amount of data to send (in Bytes).
-- @return bytes sent
--- (Linux) Send data from / to a pipe in kernel-space.
-- @class function
-- @name nixio.splice
-- @param fdin Input I/O descriptor
-- @param fdout Output I/O descriptor
-- @param length Amount of data to send (in Bytes).
-- @param flags (optional, bitfield generated by splice_flags)
-- @see nixio.splice_flags
-- @return bytes sent
--- (Linux) Generate a flag bitfield for a call to splice.
-- @class function
-- @name nixio.splice_flags
-- @param flag1 First Flag ["move", "nonblock", "more"]
-- @param ... More flags [-"-]
-- @see nixio.splice
-- @return Flag bitfield
--- (POSIX) Open a connection to the system logger.
-- @class function
-- @name nixio.openlog
-- @param ident Identifier
-- @param flag1 Flag 1 ["cons", "nowait", "pid", "perror", "ndelay", "odelay"]
-- @param ... More flags [-"-]
--- (POSIX) Close the connection to the system logger.
-- @class function
-- @name nixio.closelog
--- (POSIX) Write a message to the system logger.
-- @class function
-- @name nixio.syslog
-- @param priority Priority ["emerg", "alert", "crit", "err", "warning",
-- "notice", "info", "debug"]
-- @param message
--- (POSIX) Set the logmask of the system logger for current process.
-- @class function
-- @name nixio.setlogmask
-- @param priority Priority ["emerg", "alert", "crit", "err", "warning",
-- "notice", "info", "debug"]
--- (POSIX) Encrypt a user password.
-- @class function
-- @name nixio.crypt
-- @param key Key
-- @param salt Salt
-- @return password hash
--- (POSIX) Get all or a specific user group.
-- @class function
-- @name nixio.getgr
-- @param group Group ID or groupname (optional)
-- @return Table containing: <ul>
-- <li>name = Group Name</li>
-- <li>gid = Group ID</li>
-- <li>passwd = Password</li>
-- <li>mem = {Member #1, Member #2, ...}</li>
-- </ul>
--- (POSIX) Get all or a specific user account.
-- @class function
-- @name nixio.getpw
-- @param user User ID or username (optional)
-- @return Table containing: <ul>
-- <li>name = Name</li>
-- <li>uid = ID</li>
-- <li>gid = Group ID</li>
-- <li>passwd = Password</li>
-- <li>dir = Home directory</li>
-- <li>gecos = Information</li>
-- <li>shell = Shell</li>
-- </ul>
--- (Linux, Solaris) Get all or a specific shadow password entry.
-- @class function
-- @name nixio.getsp
-- @param user username (optional)
-- @return Table containing: <ul>
-- <li>namp = Name</li>
-- <li>expire = Expiration Date</li>
-- <li>flag = Flags</li>
-- <li>inact = Inactivity Date</li>
-- <li>lstchg = Last change</li>
-- <li>max = Maximum</li>
-- <li>min = Minimum</li>
-- <li>warn = Warning</li>
-- <li>pwdp = Password Hash</li>
-- </ul>
--- Create a new TLS context.
-- @class function
-- @name nixio.tls
-- @return TLSContext Object

15
libs/nixio/lua/bit.lua Normal file
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@ -0,0 +1,15 @@
--[[
nixio - Linux I/O library for lua
Copyright 2009 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
$Id$
]]--
return require "nixio".bit

175
libs/nixio/lua/nixio/fs.lua Normal file
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@ -0,0 +1,175 @@
--[[
nixio - Linux I/O library for lua
Copyright 2009 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
$Id$
]]--
local table = require "table"
local nixio = require "nixio"
local type, ipairs, setmetatable = type, ipairs, setmetatable
require "nixio.util"
module ("nixio.fs", function(m) setmetatable(m, {__index = nixio.fs}) end)
function readfile(path, limit)
local fd, code, msg = nixio.open(path, "r")
local data
if not fd then
return nil, code, msg
end
data, code, msg = fd:readall(limit)
fd:close()
return data, code, msg
end
function writefile(path, data)
local fd, code, msg, stat = nixio.open(path, "w")
if not fd then
return nil, code, msg
end
stat, code, msg = fd:writeall(data)
fd:close()
return stat, code, msg
end
function datacopy(src, dest, size)
local fdin, code, msg = nixio.open(src, "r")
if not fdin then
return nil, code, msg
end
local fdout, code, msg = nixio.open(dest, "w")
if not fdout then
return nil, code, msg
end
local stat, code, msg, sent = fdin:copy(fdout, size)
fdin:close()
fdout:close()
return stat, code, msg, sent
end
function copy(src, dest)
local stat, code, msg, res = nixio.lstat(src)
if not stat then
return nil, code, msg
end
if stat.type == "dir" then
if nixio.stat(dest, type) ~= "dir" then
res, code, msg = nixio.mkdir(dest)
else
stat = true
end
elseif stat.type == "lnk" then
res, code, msg = nixio.symlink(nixio.readlink(src), dest)
else
res, code, msg = datacopy(src, dest)
end
if not res then
return nil, code, msg
end
nixio.utimes(dest, stat.atime, stat.mtime)
if nixio.lchown then
nixio.lchown(dest, stat.uid, stat.gid)
end
if stat.type ~= "lnk" then
nixio.chmod(dest, stat.modedec)
end
return true
end
function move(src, dest)
local stat, code, msg = nixio.rename(src, dest)
if not stat and code == nixio.const.EXDEV then
stat, code, msg = nixio.copy(src, dest)
if stat then
stat, code, msg = nixio.unlink(src)
end
end
return stat, code, msg
end
function mkdirr(dest, mode)
if nixio.stat(dest, "type") == "dir" then
return true
else
local stat, code, msg = nixio.mkdir(dest, mode)
if not stat and code == nixio.const.ENOENT then
stat, code, msg = mkdirr(nixio.dirname(dest), mode)
if stat then
stat, code, msg = nixio.mkdir(dest, mode)
end
end
return stat, code, msg
end
end
local function _recurse(cb, src, dest)
local type = nixio.lstat(src, "type")
if type ~= "dir" then
return cb(src, dest)
else
local stat, se, code, msg, s, c, m = true, nixio.const.sep
if dest then
s, c, m = cb(src, dest)
stat, code, msg = stat and s, c or code, m or msg
end
for e in nixio.dir(src) do
if dest then
s, c, m = _recurse(cb, src .. se .. e, dest .. se .. e)
else
s, c, m = _recurse(cb, src .. se .. e)
end
stat, code, msg = stat and s, c or code, m or msg
end
if not dest then -- Postfix
s, c, m = cb(src)
stat, code, msg = stat and s, c or code, m or msg
end
return stat, code, msg
end
end
function copyr(src, dest)
return _recurse(copy, src, dest)
end
function mover(src, dest)
local stat, code, msg = nixio.rename(src, dest)
if not stat and code == nixio.const.EXDEV then
stat, code, msg = _recurse(copy, src, dest)
if stat then
stat, code, msg = _recurse(nixio.remove, src)
end
end
return stat, code, msg
end
function remover(src)
return _recurse(nixio.remove, src)
end

86
libs/nixio/lua/nixio/util.lua
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@ -18,11 +18,20 @@ local getmetatable, assert, pairs = getmetatable, assert, pairs
module "nixio.util"
local BUFFERSIZE = 8096
local BUFFERSIZE = nixio.const.buffersize
local ZIOBLKSIZE = 65536
local socket = nixio.meta_socket
local tls_socket = nixio.meta_tls_socket
local file = nixio.meta_file
function consume(iter)
local tbl = {}
for obj in iter do
tbl[#tbl+1] = obj
end
return tbl
end
local meta = {}
function meta.is_socket(self)
@ -38,50 +47,53 @@ function meta.is_file(self)
end
function meta.readall(self, len)
local block, code, msg = self:read(len)
local block, code, msg = self:read(len or BUFFERSIZE)
if not block then
return "", code, msg, len
return nil, code, msg, ""
elseif #block == 0 then
return "", nil, nil, len
return "", nil, nil, ""
end
local data, total = {block}, #block
while len > total do
block, code, msg = self:read(len - total)
while not len or len > total do
block, code, msg = self:read(len and (len - total) or BUFFERSIZE)
if not block then
return data, code, msg, len - #data
return nil, code, msg, table.concat(data)
elseif #block == 0 then
return data, nil, nil, len - #data
break
end
data[#data+1], total = block, total + #block
end
return (#data > 1 and table.concat(data) or data[1]), nil, nil, 0
local data = #data > 1 and table.concat(data) or data[1]
return data, nil, nil, data
end
meta.recvall = meta.readall
function meta.writeall(self, data)
local total, block = 0
local sent, code, msg = self:write(data)
if not sent then
return total, code, msg, data
return nil, code, msg, 0
end
while sent < #data do
block, total = data:sub(sent + 1), total + sent
sent, code, msg = self:write(block)
local total = sent
while total < #data do
sent, code, msg = self:write(data, total)
if not sent then
return total, code, msg, block
return nil, code, msg, total
end
total = total + sent
end
return total + sent, nil, nil, ""
return total, nil, nil, total
end
meta.sendall = meta.writeall
@ -105,9 +117,9 @@ function meta.linesource(self, limit)
bpos = endp
return line
elseif #buffer < limit + bpos then
local newblock, code = self:read(limit + bpos - #buffer)
local newblock, code, msg = self:read(limit + bpos - #buffer)
if not newblock then
return nil, code
return nil, code, msg
elseif #newblock == 0 then
return nil
end
@ -135,7 +147,7 @@ function meta.blocksource(self, bs, limit)
local block, code, msg = self:read(toread)
if not block then
return nil, code
return nil, code, msg
elseif #block == 0 then
return nil
else
@ -162,6 +174,40 @@ function meta.sink(self, close)
end
end
function meta.copy(self, fdout, size)
local source = self:blocksource(nil, size)
local sink = fdout:sink()
local sent, chunk, code, msg = 0
repeat
chunk, code, msg = source()
sink(chunk, code, msg)
sent = chunk and (sent + #chunk) or sent
until not chunk
return not code and sent or nil, code, msg, sent
end
function meta.copyz(self, fd, size)
local sent, lsent, code, msg = 0
if self:is_file() then
if nixio.sendfile and fd:is_socket() and self:stat("type") == "reg" then
repeat
lsent, code, msg = nixio.sendfile(fd, self, size or ZIOBLKSIZE)
if lsent then
sent = sent + lsent
size = size and (size - lsent)
end
until (not lsent or lsent == 0 or (size and size == 0))
if lsent or (not lsent and sent == 0 and
code ~= nixio.const.ENOSYS and code ~= nixio.const.EINVAL) then
return lsent and sent, code, msg, sent
end
end
end
return self:copy(fd, size)
end
function tls_socket.close(self)
return self.socket:close()
end

204
libs/nixio/src/address.c
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@ -18,16 +18,79 @@
#include "nixio.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <errno.h>
#include <string.h>
#include <netdb.h>
#ifndef NI_MAXHOST
#define NI_MAXHOST 1025
#endif
/**
* address pushing helper
*/
int nixio__addr_parse(nixio_addr *addr, struct sockaddr *saddr) {
void *baddr;
addr->family = saddr->sa_family;
if (saddr->sa_family == AF_INET) {
struct sockaddr_in *inetaddr = (struct sockaddr_in*)saddr;
addr->port = ntohs(inetaddr->sin_port);
baddr = &inetaddr->sin_addr;
} else if (saddr->sa_family == AF_INET6) {
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6*)saddr;
addr->port = ntohs(inet6addr->sin6_port);
baddr = &inet6addr->sin6_addr;
} else {
errno = EAFNOSUPPORT;
return -1;
}
if (!inet_ntop(saddr->sa_family, baddr, addr->host, sizeof(addr->host))) {
return -1;
}
return 0;
}
/**
* address pulling helper
*/
int nixio__addr_write(nixio_addr *addr, struct sockaddr *saddr) {
if (addr->family == AF_UNSPEC) {
if (strchr(addr->host, ':')) {
addr->family = AF_INET6;
} else {
addr->family = AF_INET;
}
}
if (addr->family == AF_INET) {
struct sockaddr_in *inetaddr = (struct sockaddr_in *)saddr;
memset(inetaddr, 0, sizeof(struct sockaddr_in));
if (inet_pton(AF_INET, addr->host, &inetaddr->sin_addr) < 1) {
return -1;
}
inetaddr->sin_family = AF_INET;
inetaddr->sin_port = htons((uint16_t)addr->port);
return 0;
} else if (addr->family == AF_INET6) {
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6 *)saddr;
memset(inet6addr, 0, sizeof(struct sockaddr_in6));
if (inet_pton(AF_INET6, addr->host, &inet6addr->sin6_addr) < 1) {
return -1;
}
inet6addr->sin6_family = AF_INET6;
inet6addr->sin6_port = htons((uint16_t)addr->port);
return 0;
} else {
errno = EAFNOSUPPORT;
return -1;
}
}
/**
* getaddrinfo(host, family, port)
@ -70,9 +133,11 @@ static int nixio_getaddrinfo(lua_State *L) {
for (rp = result; rp != NULL; rp = rp->ai_next) {
/* avoid duplicate results */
#ifndef __WINNT__
if (!port && rp->ai_socktype != SOCK_STREAM) {
continue;
}
#endif
if (rp->ai_family == AF_INET || rp->ai_family == AF_INET6) {
lua_createtable(L, 0, port ? 4 : 2);
@ -101,31 +166,18 @@ static int nixio_getaddrinfo(lua_State *L) {
lua_setfield(L, -2, "socktype");
}
char ip[INET6_ADDRSTRLEN];
void *binaddr = NULL;
uint16_t binport = 0;
if (rp->ai_family == AF_INET) {
struct sockaddr_in *v4addr = (struct sockaddr_in*)rp->ai_addr;
binport = v4addr->sin_port;
binaddr = (void *)&v4addr->sin_addr;
} else if (rp->ai_family == AF_INET6) {
struct sockaddr_in6 *v6addr = (struct sockaddr_in6*)rp->ai_addr;
binport = v6addr->sin6_port;
binaddr = (void *)&v6addr->sin6_addr;
}
if (!inet_ntop(rp->ai_family, binaddr, ip, sizeof(ip))) {
nixio_addr addr;
if (nixio__addr_parse(&addr, rp->ai_addr)) {
freeaddrinfo(result);
return nixio__perror(L);
return nixio__perror_s(L);
}
if (port) {
lua_pushinteger(L, ntohs(binport));
lua_pushinteger(L, addr.port);
lua_setfield(L, -2, "port");
}
lua_pushstring(L, ip);
lua_pushstring(L, addr.host);
lua_setfield(L, -2, "address");
lua_rawseti(L, -2, i++);
}
@ -140,37 +192,29 @@ static int nixio_getaddrinfo(lua_State *L) {
* getnameinfo(address, family)
*/
static int nixio_getnameinfo(lua_State *L) {
const char *ip = luaL_checklstring(L, 1, NULL);
const char *family = luaL_optlstring(L, 2, "inet", NULL);
const char *ip = luaL_checkstring(L, 1);
const char *family = luaL_optstring(L, 2, NULL);
char host[NI_MAXHOST];
struct sockaddr *addr = NULL;
socklen_t alen = 0;
int res;
struct sockaddr_storage saddr;
nixio_addr addr;
memset(&addr, 0, sizeof(addr));
strncpy(addr.host, ip, sizeof(addr.host) - 1);
if (!strcmp(family, "inet")) {
struct sockaddr_in inetaddr;
memset(&inetaddr, 0, sizeof(inetaddr));
inetaddr.sin_family = AF_INET;
if (inet_pton(AF_INET, ip, &inetaddr.sin_addr) < 1) {
return luaL_argerror(L, 1, "invalid address");
}
alen = sizeof(inetaddr);
addr = (struct sockaddr *)&inetaddr;
if (!family) {
addr.family = AF_UNSPEC;
} else if (!strcmp(family, "inet")) {
addr.family = AF_INET;
} else if (!strcmp(family, "inet6")) {
struct sockaddr_in6 inet6addr;
memset(&inet6addr, 0, sizeof(inet6addr));
inet6addr.sin6_family = AF_INET6;
if (inet_pton(AF_INET6, ip, &inet6addr.sin6_addr) < 1) {
return luaL_argerror(L, 1, "invalid address");
}
alen = sizeof(inet6addr);
addr = (struct sockaddr *)&inet6addr;
addr.family = AF_INET6;
} else {
return luaL_argerror(L, 2, "supported values: inet, inet6");
}
res = getnameinfo(addr, alen, host, sizeof(host), NULL, 0, NI_NAMEREQD);
nixio__addr_write(&addr, (struct sockaddr *)&saddr);
int res = getnameinfo((struct sockaddr *)&saddr, sizeof(saddr),
host, sizeof(host), NULL, 0, NI_NAMEREQD);
if (res) {
lua_pushnil(L);
lua_pushinteger(L, res);
@ -182,60 +226,42 @@ static int nixio_getnameinfo(lua_State *L) {
}
}
/**
* getsockname() / getpeername() helper
*/
static int nixio_sock__getname(lua_State *L, int sock) {
int sockfd = nixio__checksockfd(L);
struct sockaddr_storage addr;
socklen_t addrlen = sizeof(addr);
char ipaddr[INET6_ADDRSTRLEN];
void *binaddr;
uint16_t port;
if (sock) {
if (getsockname(sockfd, (struct sockaddr*)&addr, &addrlen)) {
return nixio__perror(L);
}
} else {
if (getpeername(sockfd, (struct sockaddr*)&addr, &addrlen)) {
return nixio__perror(L);
}
}
if (addr.ss_family == AF_INET) {
struct sockaddr_in *inetaddr = (struct sockaddr_in*)&addr;
port = inetaddr->sin_port;
binaddr = &inetaddr->sin_addr;
} else if (addr.ss_family == AF_INET6) {
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6*)&addr;
port = inet6addr->sin6_port;
binaddr = &inet6addr->sin6_addr;
} else {
return luaL_error(L, "unknown address family");
}
if (!inet_ntop(addr.ss_family, binaddr, ipaddr, sizeof(ipaddr))) {
return nixio__perror(L);
}
lua_pushstring(L, ipaddr);
lua_pushinteger(L, ntohs(port));
return 2;
}
/**
* getsockname()
*/
static int nixio_sock_getsockname(lua_State *L) {
return nixio_sock__getname(L, 1);
int sockfd = nixio__checksockfd(L);
struct sockaddr_storage saddr;
socklen_t addrlen = sizeof(saddr);
nixio_addr addr;
if (getsockname(sockfd, (struct sockaddr*)&saddr, &addrlen) ||
nixio__addr_parse(&addr, (struct sockaddr*)&saddr)) {
return nixio__perror_s(L);
}
lua_pushstring(L, addr.host);
lua_pushnumber(L, addr.port);
return 2;
}
/**
* getpeername()
*/
static int nixio_sock_getpeername(lua_State *L) {
return nixio_sock__getname(L, 0);
int sockfd = nixio__checksockfd(L);
struct sockaddr_storage saddr;
socklen_t addrlen = sizeof(saddr);
nixio_addr addr;
if (getpeername(sockfd, (struct sockaddr*)&saddr, &addrlen) ||
nixio__addr_parse(&addr, (struct sockaddr*)&saddr)) {
return nixio__perror_s(L);
}
lua_pushstring(L, addr.host);
lua_pushnumber(L, addr.port);
return 2;
}

297
libs/nixio/src/axtls-compat.c Normal file
View file

@ -0,0 +1,297 @@
/*
* Copyright (c) 2007, Cameron Rich
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of the axTLS project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Enable a subset of openssl compatible functions. We don't aim to be 100%
* compatible - just to be able to do basic ports etc.
*
* Only really tested on mini_httpd, so I'm not too sure how extensive this
* port is.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "ssl.h"
static char *key_password = NULL;
void *SSLv23_server_method(void) { return NULL; }
void *SSLv3_server_method(void) { return NULL; }
void *TLSv1_server_method(void) { return NULL; }
void *SSLv23_client_method(void) { return NULL; }
void *SSLv3_client_method(void) { return NULL; }
void *TLSv1_client_method(void) { return NULL; }
void *SSLv23_method(void) { return NULL; }
void *TLSv1_method(void) { return NULL; }
SSL_CTX * SSL_CTX_new(void *meth)
{
SSL_CTX *ssl_ctx = ssl_ctx_new(SSL_SERVER_VERIFY_LATER, 5);
return ssl_ctx;
}
void SSL_CTX_free(SSL_CTX * ssl_ctx)
{
ssl_ctx_free(ssl_ctx);
}
SSL * SSL_new(SSL_CTX *ssl_ctx)
{
SSL *ssl;
ssl = ssl_new(ssl_ctx, -1); /* fd is set later */
return ssl;
}
int SSL_set_fd(SSL *s, int fd)
{
s->client_fd = fd;
return 1; /* always succeeds */
}
int SSL_accept(SSL *ssl)
{
ssl->next_state = HS_CLIENT_HELLO;
while (ssl_read(ssl, NULL) == SSL_OK)
{
if (ssl->next_state == HS_CLIENT_HELLO)
return 1; /* we're done */
}
return -1;
}
int SSL_connect(SSL *ssl)
{
SET_SSL_FLAG(SSL_IS_CLIENT);
int stat = do_client_connect(ssl);
ssl_display_error(stat);
return (stat == SSL_OK) ? 1 : -1;
}
void SSL_free(SSL *ssl)
{
ssl_free(ssl);
}
int SSL_read(SSL *ssl, void *buf, int num)
{
uint8_t *read_buf;
int ret;
while ((ret = ssl_read(ssl, &read_buf)) == SSL_OK);
if (ret > SSL_OK)
{
memcpy(buf, read_buf, ret > num ? num : ret);
}
return ret;
}
int SSL_write(SSL *ssl, const void *buf, int num)
{
return ssl_write(ssl, buf, num);
}
int SSL_CTX_use_certificate_file(SSL_CTX *ssl_ctx, const char *file, int type)
{
return (ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, file, NULL) == SSL_OK);
}
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ssl_ctx, const char *file, int type)
{
return (ssl_obj_load(ssl_ctx, SSL_OBJ_RSA_KEY, file, key_password) == SSL_OK);
}
int SSL_CTX_use_certificate_ASN1(SSL_CTX *ssl_ctx, int len, const uint8_t *d)
{
return (ssl_obj_memory_load(ssl_ctx,
SSL_OBJ_X509_CERT, d, len, NULL) == SSL_OK);
}
int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
unsigned int sid_ctx_len)
{
return 1;
}
int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
{
return 1;
}
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ssl_ctx, const char *file)
{
return (ssl_obj_load(ssl_ctx,
SSL_OBJ_X509_CERT, file, NULL) == SSL_OK);
}
int SSL_shutdown(SSL *ssl)
{
return 1;
}
/*** get/set session ***/
SSL_SESSION *SSL_get1_session(SSL *ssl)
{
return (SSL_SESSION *)ssl_get_session_id(ssl); /* note: wrong cast */
}
int SSL_set_session(SSL *ssl, SSL_SESSION *session)
{
memcpy(ssl->session_id, (uint8_t *)session, SSL_SESSION_ID_SIZE);
return 1;
}
void SSL_SESSION_free(SSL_SESSION *session) { }
/*** end get/set session ***/
long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
{
return 0;
}
void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
int (*verify_callback)(int, void *)) {
if (mode & SSL_VERIFY_PEER) {
ctx->options &= ~SSL_SERVER_VERIFY_LATER;
ctx->options |= SSL_CLIENT_AUTHENTICATION;
} else {
ctx->options |= SSL_SERVER_VERIFY_LATER;
ctx->options &= ~SSL_CLIENT_AUTHENTICATION;
}
}
void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) { }
int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
const char *CApath)
{
return 1;
}
void *SSL_load_client_CA_file(const char *file)
{
return (void *)file;
}
void SSL_CTX_set_client_CA_list(SSL_CTX *ssl_ctx, void *file)
{
ssl_obj_load(ssl_ctx, SSL_OBJ_X509_CERT, (const char *)file, NULL);
}
void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, void *cb) { }
void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
{
key_password = (char *)u;
}
int SSL_peek(SSL *ssl, void *buf, int num)
{
memcpy(buf, ssl->bm_data, num);
return num;
}
void SSL_set_bio(SSL *ssl, void *rbio, void *wbio) { }
long SSL_get_verify_result(const SSL *ssl)
{
return ssl_handshake_status(ssl);
}
int SSL_state(SSL *ssl)
{
return 0x03; // ok state
}
/** end of could do better list */
void *SSL_get_peer_certificate(const SSL *ssl)
{
return &ssl->ssl_ctx->certs[0];
}
int SSL_clear(SSL *ssl)
{
return 1;
}
int SSL_CTX_check_private_key(const SSL_CTX *ctx)
{
return 1;
}
int SSL_CTX_set_cipher_list(SSL_CTX *s, const char *str)
{
return 1;
}
int SSL_get_error(const SSL *ssl, int ret)
{
ssl_display_error(ret);
return ret; /* TODO: return proper return code */
}
void SSL_CTX_set_options(SSL_CTX *ssl_ctx, int option) {}
int SSL_library_init(void ) { return 1; }
void SSL_load_error_strings(void ) {}
void ERR_print_errors_fp(FILE *fp) {}
long SSL_CTX_get_timeout(const SSL_CTX *ssl_ctx) {
return CONFIG_SSL_EXPIRY_TIME*3600; }
long SSL_CTX_set_timeout(SSL_CTX *ssl_ctx, long t) {
return SSL_CTX_get_timeout(ssl_ctx); }
void BIO_printf(FILE *f, const char *format, ...)
{
va_list(ap);
va_start(ap, format);
vfprintf(f, format, ap);
va_end(ap);
}
void* BIO_s_null(void) { return NULL; }
FILE *BIO_new(bio_func_type_t func)
{
if (func == BIO_s_null)
return fopen("/dev/null", "r");
else
return NULL;
}
FILE *BIO_new_fp(FILE *stream, int close_flag) { return stream; }
int BIO_free(FILE *a) { if (a != stdout && a != stderr) fclose(a); return 1; }

149
libs/nixio/src/axtls-compat.h Normal file
View file

@ -0,0 +1,149 @@
/*
* Copyright (c) 2007, Cameron Rich
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of the axTLS project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Enable a subset of openssl compatible functions. We don't aim to be 100%
* compatible - just to be able to do basic ports etc.
*
* Only really tested on mini_httpd, so I'm not too sure how extensive this
* port is.
*/
#include "nixio.h"
#include "config.h"
#define WITH_AXTLS 1
#define WITHOUT_OPENSSL 1
#define SSL_OP_NO_SSLv3 0x02000000L
#define SSL_OP_NO_SSLv2 0x01000000L
#define SSL_FILETYPE_PEM 1
#define SSL_VERIFY_NONE 0x00
#define SSL_VERIFY_PEER 0x01
#define SSL_VERIFY_FAIL_IF_NO_PEER_CERT 0x02
#define SSL_VERIFY_CLIENT_ONCE 0x03
#define MD5_DIGEST_LENGTH 16
#define SHA_DIGEST_LENGTH 20
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "ssl.h"
typedef SHA1_CTX SHA_CTX;
void *SSLv23_server_method(void);
void *SSLv3_server_method(void);
void *TLSv1_server_method(void);
void *SSLv23_client_method(void);
void *SSLv3_client_method(void);
void *TLSv1_client_method(void);
void *SSLv23_method(void);
void *TLSv1_method(void);
typedef void * (*ssl_func_type_t)(void);
typedef void * (*bio_func_type_t)(void);
SSL_CTX * SSL_CTX_new(void *meth);
void SSL_CTX_free(SSL_CTX * ssl_ctx);
SSL * SSL_new(SSL_CTX *ssl_ctx);
int SSL_set_fd(SSL *s, int fd);
int SSL_accept(SSL *ssl);
int SSL_connect(SSL *ssl);
void SSL_free(SSL *ssl);
int SSL_read(SSL *ssl, void *buf, int num);
int SSL_write(SSL *ssl, const void *buf, int num);
int SSL_CTX_use_certificate_file(SSL_CTX *ssl_ctx, const char *file, int type);
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ssl_ctx, const char *file, int type);
int SSL_CTX_use_certificate_ASN1(SSL_CTX *ssl_ctx, int len, const uint8_t *d);
int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
unsigned int sid_ctx_len);
int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ssl_ctx, const char *file);
int SSL_shutdown(SSL *ssl);
/*** get/set session ***/
SSL_SESSION *SSL_get1_session(SSL *ssl);
int SSL_set_session(SSL *ssl, SSL_SESSION *session);
void SSL_SESSION_free(SSL_SESSION *session);
/*** end get/set session ***/
long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg);
void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
int (*verify_callback)(int, void *));
void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth);
int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
const char *CApath);
void *SSL_load_client_CA_file(const char *file);
void SSL_CTX_set_client_CA_list(SSL_CTX *ssl_ctx, void *file);
void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, void *cb);
void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u);
int SSL_peek(SSL *ssl, void *buf, int num);
void SSL_set_bio(SSL *ssl, void *rbio, void *wbio);
long SSL_get_verify_result(const SSL *ssl);
int SSL_state(SSL *ssl);
/** end of could do better list */
void *SSL_get_peer_certificate(const SSL *ssl);
int SSL_clear(SSL *ssl);
int SSL_CTX_check_private_key(const SSL_CTX *ctx);
int SSL_CTX_set_cipher_list(SSL_CTX *s, const char *str);
int SSL_get_error(const SSL *ssl, int ret);
void SSL_CTX_set_options(SSL_CTX *ssl_ctx, int option);
int SSL_library_init(void );
void SSL_load_error_strings(void );
void ERR_print_errors_fp(FILE *fp);
long SSL_CTX_get_timeout(const SSL_CTX *ssl_ctx);
long SSL_CTX_set_timeout(SSL_CTX *ssl_ctx, long t);
void BIO_printf(FILE *f, const char *format, ...);
void* BIO_s_null(void);
FILE *BIO_new(bio_func_type_t func);
FILE *BIO_new_fp(FILE *stream, int close_flag);
int BIO_free(FILE *a);

313
libs/nixio/src/binary.c Normal file
View file

@ -0,0 +1,313 @@
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nixio.h"
#include <stdlib.h>
static char nixio__bin2hex[] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
static unsigned char nixio__b64encode_tbl[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static unsigned char nixio__b64decode_tbl[] = {
0x3e, 0xff, 0xff, 0xff, 0x3f, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0xff,
0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x01,
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1a, 0x1b,
0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33
};
static const uint32_t nixio__crc32_tbl[] = {
0x00000000U, 0x77073096U, 0xee0e612cU, 0x990951baU, 0x076dc419U,
0x706af48fU, 0xe963a535U, 0x9e6495a3U, 0x0edb8832U, 0x79dcb8a4U,
0xe0d5e91eU, 0x97d2d988U, 0x09b64c2bU, 0x7eb17cbdU, 0xe7b82d07U,
0x90bf1d91U, 0x1db71064U, 0x6ab020f2U, 0xf3b97148U, 0x84be41deU,
0x1adad47dU, 0x6ddde4ebU, 0xf4d4b551U, 0x83d385c7U, 0x136c9856U,
0x646ba8c0U, 0xfd62f97aU, 0x8a65c9ecU, 0x14015c4fU, 0x63066cd9U,
0xfa0f3d63U, 0x8d080df5U, 0x3b6e20c8U, 0x4c69105eU, 0xd56041e4U,
0xa2677172U, 0x3c03e4d1U, 0x4b04d447U, 0xd20d85fdU, 0xa50ab56bU,
0x35b5a8faU, 0x42b2986cU, 0xdbbbc9d6U, 0xacbcf940U, 0x32d86ce3U,
0x45df5c75U, 0xdcd60dcfU, 0xabd13d59U, 0x26d930acU, 0x51de003aU,
0xc8d75180U, 0xbfd06116U, 0x21b4f4b5U, 0x56b3c423U, 0xcfba9599U,
0xb8bda50fU, 0x2802b89eU, 0x5f058808U, 0xc60cd9b2U, 0xb10be924U,
0x2f6f7c87U, 0x58684c11U, 0xc1611dabU, 0xb6662d3dU, 0x76dc4190U,
0x01db7106U, 0x98d220bcU, 0xefd5102aU, 0x71b18589U, 0x06b6b51fU,
0x9fbfe4a5U, 0xe8b8d433U, 0x7807c9a2U, 0x0f00f934U, 0x9609a88eU,
0xe10e9818U, 0x7f6a0dbbU, 0x086d3d2dU, 0x91646c97U, 0xe6635c01U,
0x6b6b51f4U, 0x1c6c6162U, 0x856530d8U, 0xf262004eU, 0x6c0695edU,
0x1b01a57bU, 0x8208f4c1U, 0xf50fc457U, 0x65b0d9c6U, 0x12b7e950U,
0x8bbeb8eaU, 0xfcb9887cU, 0x62dd1ddfU, 0x15da2d49U, 0x8cd37cf3U,
0xfbd44c65U, 0x4db26158U, 0x3ab551ceU, 0xa3bc0074U, 0xd4bb30e2U,
0x4adfa541U, 0x3dd895d7U, 0xa4d1c46dU, 0xd3d6f4fbU, 0x4369e96aU,
0x346ed9fcU, 0xad678846U, 0xda60b8d0U, 0x44042d73U, 0x33031de5U,
0xaa0a4c5fU, 0xdd0d7cc9U, 0x5005713cU, 0x270241aaU, 0xbe0b1010U,
0xc90c2086U, 0x5768b525U, 0x206f85b3U, 0xb966d409U, 0xce61e49fU,
0x5edef90eU, 0x29d9c998U, 0xb0d09822U, 0xc7d7a8b4U, 0x59b33d17U,
0x2eb40d81U, 0xb7bd5c3bU, 0xc0ba6cadU, 0xedb88320U, 0x9abfb3b6U,
0x03b6e20cU, 0x74b1d29aU, 0xead54739U, 0x9dd277afU, 0x04db2615U,
0x73dc1683U, 0xe3630b12U, 0x94643b84U, 0x0d6d6a3eU, 0x7a6a5aa8U,
0xe40ecf0bU, 0x9309ff9dU, 0x0a00ae27U, 0x7d079eb1U, 0xf00f9344U,
0x8708a3d2U, 0x1e01f268U, 0x6906c2feU, 0xf762575dU, 0x806567cbU,
0x196c3671U, 0x6e6b06e7U, 0xfed41b76U, 0x89d32be0U, 0x10da7a5aU,
0x67dd4accU, 0xf9b9df6fU, 0x8ebeeff9U, 0x17b7be43U, 0x60b08ed5U,
0xd6d6a3e8U, 0xa1d1937eU, 0x38d8c2c4U, 0x4fdff252U, 0xd1bb67f1U,
0xa6bc5767U, 0x3fb506ddU, 0x48b2364bU, 0xd80d2bdaU, 0xaf0a1b4cU,
0x36034af6U, 0x41047a60U, 0xdf60efc3U, 0xa867df55U, 0x316e8eefU,
0x4669be79U, 0xcb61b38cU, 0xbc66831aU, 0x256fd2a0U, 0x5268e236U,
0xcc0c7795U, 0xbb0b4703U, 0x220216b9U, 0x5505262fU, 0xc5ba3bbeU,
0xb2bd0b28U, 0x2bb45a92U, 0x5cb36a04U, 0xc2d7ffa7U, 0xb5d0cf31U,
0x2cd99e8bU, 0x5bdeae1dU, 0x9b64c2b0U, 0xec63f226U, 0x756aa39cU,
0x026d930aU, 0x9c0906a9U, 0xeb0e363fU, 0x72076785U, 0x05005713U,
0x95bf4a82U, 0xe2b87a14U, 0x7bb12baeU, 0x0cb61b38U, 0x92d28e9bU,
0xe5d5be0dU, 0x7cdcefb7U, 0x0bdbdf21U, 0x86d3d2d4U, 0xf1d4e242U,
0x68ddb3f8U, 0x1fda836eU, 0x81be16cdU, 0xf6b9265bU, 0x6fb077e1U,
0x18b74777U, 0x88085ae6U, 0xff0f6a70U, 0x66063bcaU, 0x11010b5cU,
0x8f659effU, 0xf862ae69U, 0x616bffd3U, 0x166ccf45U, 0xa00ae278U,
0xd70dd2eeU, 0x4e048354U, 0x3903b3c2U, 0xa7672661U, 0xd06016f7U,
0x4969474dU, 0x3e6e77dbU, 0xaed16a4aU, 0xd9d65adcU, 0x40df0b66U,
0x37d83bf0U, 0xa9bcae53U, 0xdebb9ec5U, 0x47b2cf7fU, 0x30b5ffe9U,
0xbdbdf21cU, 0xcabac28aU, 0x53b39330U, 0x24b4a3a6U, 0xbad03605U,
0xcdd70693U, 0x54de5729U, 0x23d967bfU, 0xb3667a2eU, 0xc4614ab8U,
0x5d681b02U, 0x2a6f2b94U, 0xb40bbe37U, 0xc30c8ea1U, 0x5a05df1bU,
0x2d02ef8dU
};
static int nixio_bin_crc32(lua_State *L) {
size_t len;
const char *buffer = luaL_checklstring(L, 1, &len);
uint32_t value = luaL_optnumber(L, 2, 0);
value = ~value;
for (size_t i=0; i<len; i++) {
value = nixio__crc32_tbl[(value ^ buffer[i]) & 0xffU ] ^ (value >> 8);
}
lua_pushinteger(L, (int)(value ^ 0xffffffffU));
return 1;
}
static int nixio_bin_hexlify(lua_State *L) {
size_t len, lenout;
luaL_checktype(L, 1, LUA_TSTRING);
const unsigned char *data = (unsigned char*)lua_tolstring(L, 1, &len);
if (len == 0) {
lua_pushvalue(L, 1);
return 1;
}
lenout = len * 2;
luaL_argcheck(L, lenout > len, 1, "size overflow");
char *out = malloc(lenout);
if (!out) {
return luaL_error(L, NIXIO_OOM);
}
for (size_t i=0; i < len; i++) {
out[2*i] = nixio__bin2hex[(data[i] & 0xf0) >> 4];
out[2*i+1] = nixio__bin2hex[(data[i] & 0x0f)];
}
lua_pushlstring(L, out, lenout);
free(out);
return 1;
}
static int nixio_bin_unhexlify(lua_State *L) {
size_t len, lenout;
const char *data = luaL_checklstring(L, 1, &len);
if (len == 0) {
lua_pushvalue(L, 1);
return 1;
} else if (len % 2) {
errno = EINVAL;
return nixio__perror(L);
}
lenout = len / 2;
char *out = malloc(lenout);
if (!out) {
return luaL_error(L, NIXIO_OOM);
}
for (size_t i=0; i < lenout; i++) {
char c = data[2*i];
if (c >= '0' && c <= '9') {
out[i] = (c - '0') << 4;
} else if (c >= 'a' && c <= 'f') {
out[i] = (c - 'a' + 10) << 4;
} else if (data[2*i] >= 'A' && c <= 'F') {
out[i] = (c - 'A' + 10) << 4;
} else {
free(out);
errno = EINVAL;
return nixio__perror(L);
}
c = data[2*i+1];
if (c >= '0' && c <= '9') {
out[i] += c - '0';
} else if (c >= 'a' && c <= 'f') {
out[i] += c - 'a' + 10;
} else if (c >= 'A' && c <= 'F') {
out[i] += c - 'A' + 10;
} else {
free(out);
errno = EINVAL;
return nixio__perror(L);
}
}
lua_pushlstring(L, out, lenout);
free(out);
return 1;
}
static int nixio_bin_b64encode(lua_State *L) {
size_t len, lenout, pad, i;
const char *data = luaL_checklstring(L, 1, &len);
lenout = len / 3;
lenout *= 4;
pad = len % 3;
if (len == 0) {
lua_pushvalue(L, 1);
return 1;
} else if (pad) {
lenout += 4;
}
luaL_argcheck(L, lenout > len, 1, "size overflow");
char *out = malloc(lenout);
if (!out) {
return luaL_error(L, NIXIO_OOM);
}
char *o = out;
for (i = 0; i < len; i += 3) {
uint32_t cv = (data[i] << 16) | (data[i+1] << 8) | data[i+2];
*(o+3) = nixio__b64encode_tbl[ cv & 0x3f];
*(o+2) = nixio__b64encode_tbl[(cv >> 6) & 0x3f];
*(o+1) = nixio__b64encode_tbl[(cv >> 12) & 0x3f];
*o = nixio__b64encode_tbl[(cv >> 18) & 0x3f];
o += 4;
}
if (pad) {
uint32_t cv = data[len-pad] << 16;
*(o-1) = '=';
*(o-2) = '=';
if (pad == 2) {
cv |= data[len-pad+1] << 8;
*(o-2) = nixio__b64encode_tbl[(cv >> 6) & 0x3f];
}
*(o-3) = nixio__b64encode_tbl[(cv >> 12) & 0x3f];
*(o-4) = nixio__b64encode_tbl[(cv >> 18) & 0x3f];
}
lua_pushlstring(L, out, lenout);
free(out);
return 1;
}
static int nixio_bin_b64decode(lua_State *L) {
size_t len, lenout, i;
const char *dt = luaL_checklstring(L, 1, &len);
if (len == 0) {
lua_pushvalue(L, 1);
return 1;
} else if (len % 4) {
errno = EINVAL;
return nixio__perror(L);
}
lenout = len / 4 * 3;
unsigned char *out = malloc(lenout);
if (!out) {
return luaL_error(L, NIXIO_OOM);
}
unsigned char *o = out;
for (i = 0; i < len; i += 4) {
uint32_t cv = 0;
for (int j = 0; j < 4; j++) {
unsigned char c = dt[i + j] - 43;
if (c > 79 || (c = nixio__b64decode_tbl[c]) == 0xff) {
free(out);
errno = EINVAL;
return nixio__perror(L);
}
cv |= c;
if (j != 3) {
cv <<= 6;
}
}
*(o+2) = (unsigned char)(cv & 0xff);
*(o+1) = (unsigned char)((cv >> 8) & 0xff);
*o = (unsigned char)((cv >> 16) & 0xff);
o += 3;
}
if (dt[len-1] == '=') {
lenout--;
}
if (dt[len-2] == '=') {
lenout--;
}
lua_pushlstring(L, (char*)out, lenout);
free(out);
return 1;
}
/* module table */
static const luaL_reg R[] = {
{"hexlify", nixio_bin_hexlify},
{"unhexlify", nixio_bin_unhexlify},
{"crc32", nixio_bin_crc32},
{"b64encode", nixio_bin_b64encode},
{"b64decode", nixio_bin_b64decode},
{NULL, NULL}
};
void nixio_open_bin(lua_State *L) {
lua_newtable(L);
luaL_register(L, NULL, R);
lua_setfield(L, -2, "bin");
}

57
libs/nixio/src/bind.c
View file

@ -18,15 +18,11 @@
#include "nixio.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/un.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <errno.h>
/**
* connect()/bind() shortcut
*/
@ -87,6 +83,9 @@ static int nixio__bind_connect(lua_State *L, int do_bind) {
}
if (do_bind) {
int one = 1;
setsockopt(sock->fd, SOL_SOCKET, SO_REUSEADDR,
(char*)&one, sizeof(one));
status = bind(sock->fd, rp->ai_addr, rp->ai_addrlen);
} else {
do {
@ -103,7 +102,11 @@ static int nixio__bind_connect(lua_State *L, int do_bind) {
}
do {
#ifndef __WINNT__
clstat = close(sock->fd);
#else
clstat = closesocket(sock->fd);
#endif
} while (clstat == -1 && errno == EINTR);
}
@ -111,7 +114,7 @@ static int nixio__bind_connect(lua_State *L, int do_bind) {
/* on failure */
if (status) {
return nixio__perror(L);
return nixio__perror_s(L);
}
luaL_getmetatable(L, NIXIO_META);
@ -183,6 +186,7 @@ static int nixio_sock__bind_connect(lua_State *L, int do_bind) {
}
freeaddrinfo(result);
#ifndef __WINNT__
} else if (sock->domain == AF_UNIX) {
size_t pathlen;
const char *path = luaL_checklstring(L, 2, &pathlen);
@ -200,10 +204,11 @@ static int nixio_sock__bind_connect(lua_State *L, int do_bind) {
sizeof(addr));
} while (status == -1 && errno == EINTR);
}
#endif
} else {
return luaL_error(L, "not supported");
}
return nixio__pstatus(L, !status);
return nixio__pstatus_s(L, !status);
}
/**
@ -225,8 +230,8 @@ static int nixio_sock_connect(lua_State *L) {
*/
static int nixio_sock_listen(lua_State *L) {
int sockfd = nixio__checksockfd(L);
lua_Integer backlog = luaL_checkinteger(L, 2);
return nixio__pstatus(L, !listen(sockfd, backlog));
int backlog = luaL_checkinteger(L, 2);
return nixio__pstatus_s(L, !listen(sockfd, backlog));
}
/**
@ -234,18 +239,16 @@ static int nixio_sock_listen(lua_State *L) {
*/
static int nixio_sock_accept(lua_State *L) {
nixio_sock *sock = nixio__checksock(L);
struct sockaddr_storage addr;
socklen_t addrlen = sizeof(addr);
char ipaddr[INET6_ADDRSTRLEN];
void *binaddr;
uint16_t port;
struct sockaddr_storage saddr;
nixio_addr addr;
socklen_t saddrlen = sizeof(saddr);
int newfd;
do {
newfd = accept(sock->fd, (struct sockaddr *)&addr, &addrlen);
newfd = accept(sock->fd, (struct sockaddr *)&saddr, &saddrlen);
} while (newfd == -1 && errno == EINTR);
if (newfd < 0) {
return nixio__perror(L);
return nixio__perror_s(L);
}
/* create userdata */
@ -256,25 +259,13 @@ static int nixio_sock_accept(lua_State *L) {
memcpy(clsock, sock, sizeof(clsock));
clsock->fd = newfd;
if (addr.ss_family == AF_INET) {
struct sockaddr_in *inetaddr = (struct sockaddr_in*)&addr;
port = inetaddr->sin_port;
binaddr = &inetaddr->sin_addr;
} else if (addr.ss_family == AF_INET6) {
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6*)&addr;
port = inet6addr->sin6_port;
binaddr = &inet6addr->sin6_addr;
if (!nixio__addr_parse(&addr, (struct sockaddr *)&saddr)) {
lua_pushstring(L, addr.host);
lua_pushnumber(L, addr.port);
return 3;
} else {
return luaL_error(L, "unknown address family");
return 1;
}
if (!inet_ntop(addr.ss_family, binaddr, ipaddr, sizeof(ipaddr))) {
return nixio__perror(L);
}
lua_pushstring(L, ipaddr);
lua_pushinteger(L, ntohs(port));
return 3;
}
/* module table */

125
libs/nixio/src/bit.c Normal file
View file

@ -0,0 +1,125 @@
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nixio.h"
#include <stdint.h>
#include <stdlib.h>
/* 52 bit maximum precision */
#define NIXIO_BIT_BMAX 52
#define NIXIO_BIT_NMAX 0xfffffffffffff
#define NIXIO_BIT_XOP(BIT_XOP) \
uint64_t oper = luaL_checknumber(L, 1); \
const int args = lua_gettop(L); \
\
for (int i = 2; i <= args; i++) { \
uint64_t oper2 = luaL_checknumber(L, i); \
oper BIT_XOP oper2; \
} \
\
lua_pushnumber(L, oper); \
return 1; \
static int nixio_bit_or(lua_State *L) {
NIXIO_BIT_XOP(|=);
}
static int nixio_bit_and(lua_State *L) {
NIXIO_BIT_XOP(&=);
}
static int nixio_bit_xor(lua_State *L) {
NIXIO_BIT_XOP(^=);
}
static int nixio_bit_unset(lua_State *L) {
NIXIO_BIT_XOP(&= ~);
}
static int nixio_bit_not(lua_State *L) {
lua_pushnumber(L, (~((uint64_t)luaL_checknumber(L, 1))) & NIXIO_BIT_NMAX);
return 1;
}
static int nixio_bit_shl(lua_State *L) {
uint64_t oper = luaL_checknumber(L, 1);
oper <<= luaL_checkinteger(L, 2);
if (oper > NIXIO_BIT_NMAX) {
return luaL_error(L, "arithmetic overflow");
} else {
lua_pushnumber(L, oper);
return 1;
}
}
static int nixio_bit_ashr(lua_State *L) {
int64_t oper = luaL_checknumber(L, 1);
lua_pushnumber(L, oper >> luaL_checkinteger(L, 2));
return 1;
}
static int nixio_bit_shr(lua_State *L) {
uint64_t oper = luaL_checknumber(L, 1);
lua_pushnumber(L, oper >> luaL_checkinteger(L, 2));
return 1;
}
static int nixio_bit_div(lua_State *L) {
NIXIO_BIT_XOP(/=);
}
static int nixio_bit_check(lua_State *L) {
uint64_t oper = luaL_checknumber(L, 1);
uint64_t oper2 = luaL_checknumber(L, 2);
lua_pushboolean(L, (oper & oper2) == oper2);
return 1;
}
static int nixio_bit_cast(lua_State *L) {
lua_pushnumber(L, ((uint64_t)luaL_checknumber(L, 1)) & NIXIO_BIT_NMAX);
return 1;
}
/* module table */
static const luaL_reg R[] = {
{"bor", nixio_bit_or},
{"set", nixio_bit_or},
{"band", nixio_bit_and},
{"bxor", nixio_bit_xor},
{"unset", nixio_bit_unset},
{"bnot", nixio_bit_not},
{"rshift", nixio_bit_shr},
{"arshift", nixio_bit_ashr},
{"lshift", nixio_bit_shl},
{"div", nixio_bit_div},
{"check", nixio_bit_check},
{"cast", nixio_bit_cast},
{NULL, NULL}
};
void nixio_open_bit(lua_State *L) {
lua_newtable(L);
luaL_register(L, NULL, R);
lua_pushnumber(L, NIXIO_BIT_BMAX);
lua_setfield(L, -2, "bits");
lua_pushnumber(L, NIXIO_BIT_NMAX);
lua_setfield(L, -2, "max");
lua_setfield(L, -2, "bit");
}

104
libs/nixio/src/file.c
View file

@ -30,12 +30,37 @@
static int nixio_open(lua_State *L) {
const char *filename = luaL_checklstring(L, 1, NULL);
int flags = luaL_optint(L, 2, O_RDONLY);
int mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
int flags;
if (lua_isnoneornil(L, 2)) {
flags = O_RDONLY;
} else if (lua_isnumber(L, 2)) {
flags = lua_tointeger(L, 2);
} else if (lua_isstring(L, 2)) {
const char *str = lua_tostring(L, 2);
if (!strcmp(str, "r")) {
flags = O_RDONLY;
} else if (!strcmp(str, "r+")) {
flags = O_RDWR;
} else if (!strcmp(str, "w")) {
flags = O_WRONLY | O_CREAT | O_TRUNC;
} else if (!strcmp(str, "w+")) {
flags = O_RDWR | O_CREAT | O_TRUNC;
} else if (!strcmp(str, "a")) {
flags = O_WRONLY | O_CREAT | O_APPEND;
} else if (!strcmp(str, "a+")) {
flags = O_RDWR | O_CREAT | O_APPEND;
} else {
return luaL_argerror(L, 2, "supported values: r, r+, w, w+, a, a+");
}
} else {
return luaL_argerror(L, 2, "open flags or string expected");
}
int fd;
do {
fd = open(filename, flags, mode);
fd = open(filename, flags, nixio__check_mode(L, 3, 0666));
} while (fd == -1 && errno == EINTR);
if (fd == -1) {
return nixio__perror(L);
@ -66,9 +91,13 @@ static int nixio_open_flags(lua_State *L) {
} else if (!strcmp(flag, "excl")) {
mode |= O_EXCL;
} else if (!strcmp(flag, "nonblock") || !strcmp(flag, "ndelay")) {
#ifndef __WINNT__
mode |= O_NONBLOCK;
#endif
} else if (!strcmp(flag, "sync")) {
#ifndef __WINNT__
mode |= O_SYNC;
#endif
} else if (!strcmp(flag, "trunc")) {
mode |= O_TRUNC;
} else if (!strcmp(flag, "rdonly")) {
@ -141,6 +170,23 @@ static int nixio_file_write(lua_State *L) {
ssize_t sent;
const char *data = luaL_checklstring(L, 2, &len);
if (lua_gettop(L) > 2) {
int offset = luaL_optint(L, 3, 0);
if (offset) {
if (offset < len) {
data += offset;
len -= offset;
} else {
len = 0;
}
}
unsigned int wlen = luaL_optint(L, 4, len);
if (wlen < len) {
len = wlen;
}
}
do {
sent = write(fd, data, len);
} while(sent == -1 && errno == EINTR);
@ -155,7 +201,7 @@ static int nixio_file_write(lua_State *L) {
static int nixio_file_read(lua_State *L) {
int fd = nixio__checkfd(L, 1);
char buffer[NIXIO_BUFFERSIZE];
int req = luaL_checkinteger(L, 2);
uint req = luaL_checkinteger(L, 2);
int readc;
/* We limit the readsize to NIXIO_BUFFERSIZE */
@ -208,13 +254,33 @@ static int nixio_file_tell(lua_State *L) {
}
}
static int nixio_file_stat(lua_State *L) {
nixio_stat_t buf;
if (fstat(nixio__checkfd(L, 1), &buf)) {
return nixio__perror(L);
} else {
nixio__push_stat(L, &buf);
if (lua_isstring(L, 2)) {
lua_getfield(L, -1, lua_tostring(L, 2));
}
return 1;
}
}
static int nixio_file_sync(lua_State *L) {
int fd = nixio__checkfd(L, 1);
#ifndef BSD
int meta = lua_toboolean(L, 2);
return nixio__pstatus(L, (meta) ? !fsync(fd) : !fdatasync(fd));
int stat;
#if (!defined BSD && !defined __WINNT__)
int dataonly = lua_toboolean(L, 2);
do {
stat = (dataonly) ? fdatasync(fd) : fsync(fd);
} while (stat == -1 && errno == EINTR);
return nixio__pstatus(L, !stat);
#else
return nixio__pstatus(L, !fsync(fd));
do {
stat = fsync(fd);
} while (stat == -1 && errno == EINTR);
return nixio__pstatus(L, !stat);
#endif
}
@ -282,6 +348,7 @@ static const luaL_reg M[] = {
{"read", nixio_file_read},
{"tell", nixio_file_tell},
{"seek", nixio_file_seek},
{"stat", nixio_file_stat},
{"sync", nixio_file_sync},
{"lock", nixio_file_lock},
{"close", nixio_file_close},
@ -306,5 +373,26 @@ void nixio_open_file(lua_State *L) {
luaL_register(L, NULL, M);
lua_pushvalue(L, -1);
lua_setfield(L, -2, "__index");
int *uin = lua_newuserdata(L, sizeof(int));
int *uout = lua_newuserdata(L, sizeof(int));
int *uerr = lua_newuserdata(L, sizeof(int));
if (!uin || !uout || !uerr) {
luaL_error(L, "out of memory");
}
*uin = STDIN_FILENO;
*uout = STDOUT_FILENO;
*uerr = STDERR_FILENO;
for (int i = -4; i < -1; i++) {
lua_pushvalue(L, -4);
lua_setmetatable(L, i);
}
lua_setfield(L, -5, "stderr");
lua_setfield(L, -4, "stdout");
lua_setfield(L, -3, "stdin");
lua_setfield(L, -2, "meta_file");
}

566
libs/nixio/src/fs.c Normal file
View file

@ -0,0 +1,566 @@
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nixio.h"
#include <libgen.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <dirent.h>
/* Reads argument from given index and transforms it into a mode bitfield */
int nixio__check_mode(lua_State *L, int idx, int def) {
if (lua_isnoneornil(L, idx) && def > 0) {
return def;
} else if (lua_isstring(L, idx) && lua_objlen(L, idx) == 9) {
int mode = 0;
const char *modestr = lua_tostring(L, idx);
int i;
for (i=0; i<9; i++) {
if (i % 3 == 0) { /* read flags */
if (modestr[i] == 'r') {
mode |= 1 << (8 - i);
} else if (modestr[i] != '-') {
break;
}
} else if (i % 3 == 1) { /* write flags */
if (modestr[i] == 'w') {
mode |= 1 << (8 - i);
} else if (modestr[i] != '-') {
break;
}
} else if (i == 2) {
if (modestr[i] == 'x') {
mode |= 00100;
} else if (modestr[i] == 's') {
mode |= 04100;
} else if (modestr[i] == 'S') {
mode |= 04000;
} else if (modestr[i] != '-') {
break;
}
} else if (i == 5) {
if (modestr[i] == 'x') {
mode |= 00010;
} else if (modestr[i] == 's') {
mode |= 02010;
} else if (modestr[i] == 'S') {
mode |= 02000;
} else if (modestr[i] != '-') {
break;
}
} else if (i == 8) {
if (modestr[i] == 'x') {
mode |= 00001;
} else if (modestr[i] == 't') {
mode |= 01001;
} else if (modestr[i] == 'T') {
mode |= 01000;
} else if (modestr[i] != '-') {
break;
}
}
}
if (i == 9) { /* successfully parsed */
return mode;
}
} else if (lua_isnumber(L, idx)) {
int decmode = lua_tointeger(L, idx);
int s = (decmode % 10000) / 1000;
int u = (decmode % 1000) / 100;
int g = (decmode % 100) / 10;
int o = (decmode % 10);
if (s>=0 && s<=7 && u>=0 && u<=7 && g>=0 && g<=7 && o>=0 && o<=7) {
return (s << 9) + (u << 6) + (g << 3) + o;
}
}
return luaL_argerror(L, idx, "supported values: [0-7]?[0-7][0-7][0-7], "
"[-r][-w][-xsS][-r][-w][-xsS][-r][-w][-xtT]");
}
/* Transforms a mode into the modestring */
int nixio__mode_write(int mode, char *modestr) {
if (modestr) {
modestr[0] = (mode & 00400) ? 'r' : '-';
modestr[1] = (mode & 00200) ? 'w' : '-';
modestr[2] = ((mode & 04100) == 04100) ? 's' :
(mode & 04000) ? 'S' : (mode & 00100) ? 'x' : '-';
modestr[3] = (mode & 00040) ? 'r' : '-';
modestr[4] = (mode & 00020) ? 'w' : '-';
modestr[5] = ((mode & 02010) == 02010) ? 's' :
(mode & 02000) ? 'S' : (mode & 00010) ? 'x' : '-';
modestr[6] = (mode & 00004) ? 'r' : '-';
modestr[7] = (mode & 00002) ? 'w' : '-';
modestr[8] = ((mode & 01001) == 01001) ? 't' :
(mode & 01000) ? 'T' : (mode & 00001) ? 'x' : '-';
}
return (mode & 00007) + ((mode & 00070) >> 3) * 10 +
((mode & 00700) >> 6) * 100 + ((mode & 07000) >> 9) * 1000;
}
static int nixio_access(lua_State *L) {
const char *path = luaL_checkstring(L, 1);
int mode = F_OK;
for (const char *s = luaL_optstring(L, 2, "f"); *s; s++) {
if (*s == 'r') {
mode |= R_OK;
} else if (*s == 'w') {
mode |= W_OK;
} else if (*s == 'x') {
mode |= X_OK;
} else if (*s != 'f') {
return luaL_argerror(L, 2, "supported values: [frwx]");
}
}
return nixio__pstatus(L, !access(path, mode));
}
static int nixio_basename(lua_State *L) {
const char *path = luaL_checkstring(L, 1);
char base[PATH_MAX];
base[PATH_MAX-1] = 0;
strncpy(base, path, PATH_MAX-1);
lua_pushstring(L, basename(base));
return 1;
}
static int nixio_dirname(lua_State *L) {
const char *path = luaL_checkstring(L, 1);
char base[PATH_MAX];
base[PATH_MAX-1] = 0;
strncpy(base, path, PATH_MAX-1);
lua_pushstring(L, dirname(base));
return 1;
}
static int nixio_realpath(lua_State *L) {
const char *path = luaL_checkstring(L, 1);
char real[PATH_MAX];
if (!realpath(path, real)) {
return nixio__perror(L);
} else {
lua_pushstring(L, real);
return 1;
}
}
static int nixio_remove(lua_State *L) {
return nixio__pstatus(L, !remove(luaL_checkstring(L, 1)));
}
static int nixio_unlink(lua_State *L) {
return nixio__pstatus(L, !unlink(luaL_checkstring(L, 1)));
}
static int nixio_rename(lua_State *L) {
return nixio__pstatus(L,
!rename(luaL_checkstring(L, 1), luaL_checkstring(L, 2)));
}
static int nixio_rmdir(lua_State *L) {
return nixio__pstatus(L, !rmdir(luaL_checkstring(L, 1)));
}
static int nixio_mkdir(lua_State *L) {
return nixio__pstatus(L,
!mkdir(luaL_checkstring(L, 1), nixio__check_mode(L, 2, 0777)));
}
static int nixio_chmod(lua_State *L) {
return nixio__pstatus(L,
!chmod(luaL_checkstring(L, 1), nixio__check_mode(L, 2, -1)));
}
static int nixio_dir__gc(lua_State *L) {
DIR **dirp = lua_touserdata(L, 1);
if (dirp && *dirp) {
closedir(*dirp);
*dirp = NULL;
}
return 0;
}
static int nixio_dir__iter(lua_State *L) {
DIR **dirp = lua_touserdata(L, lua_upvalueindex(1));
struct dirent *entry;
const char *n = NULL;
if (*dirp) {
do {
entry = readdir(*dirp);
n = (entry) ? entry->d_name : NULL;
} while(n && n[0] == '.' && (n[1] == 0 || (n[1] == '.' && n[2] == 0)));
}
if (n) {
lua_pushstring(L, n);
} else {
if (*dirp) {
closedir(*dirp);
*dirp = NULL;
}
lua_pushnil(L);
}
return 1;
}
static int nixio_dir(lua_State *L) {
const char *path = luaL_optstring(L, 1, ".");
DIR **dirp = lua_newuserdata(L, sizeof(DIR *));
*dirp = opendir(path);
if (!*dirp) {
return nixio__perror(L);
} else {
luaL_getmetatable(L, NIXIO_DIR_META);
lua_setmetatable(L, -2);
lua_pushcclosure(L, nixio_dir__iter, 1);
return 1;
}
}
static int nixio_link(lua_State *L) {
return nixio__pstatus(L,
!link(luaL_checkstring(L, 1), luaL_checkstring(L, 2)));
}
static int nixio_utimes(lua_State *L) {
const char *path = luaL_checkstring(L, 1);
if (lua_gettop(L) < 2) {
return nixio__pstatus(L, !utimes(path, NULL));
} else {
double atime = luaL_checknumber(L, 2);
double mtime = luaL_optnumber(L, 3, atime);
struct timeval times[2];
times[0].tv_sec = atime;
times[0].tv_usec = (long)((atime - (int64_t)atime) * 1000000);
times[1].tv_sec = mtime;
times[1].tv_usec = (long)((mtime - (int64_t)mtime) * 1000000);
return nixio__pstatus(L, !utimes(path, times));
}
}
int nixio__push_stat(lua_State *L, nixio_stat_t *buf) {
lua_createtable(L, 0, 15);
lua_pushinteger(L, buf->st_dev);
lua_setfield(L, -2, "dev");
lua_pushinteger(L, buf->st_ino);
lua_setfield(L, -2, "ino");
if (S_ISREG(buf->st_mode)) {
lua_pushliteral(L, "reg");
} else if (S_ISDIR(buf->st_mode)) {
lua_pushliteral(L, "dir");
} else if (S_ISCHR(buf->st_mode)) {
lua_pushliteral(L, "chr");
} else if (S_ISBLK(buf->st_mode)) {
lua_pushliteral(L, "blk");
} else if (S_ISFIFO(buf->st_mode)) {
lua_pushliteral(L, "fifo");
} else if (S_ISLNK(buf->st_mode)) {
lua_pushliteral(L, "lnk");
} else if (S_ISSOCK(buf->st_mode)) {
lua_pushliteral(L, "sock");
} else {
lua_pushliteral(L, "unknown");
}
lua_setfield(L, -2, "type");
char modestr[9];
lua_pushinteger(L, nixio__mode_write(buf->st_mode, modestr));
lua_setfield(L, -2, "modedec");
lua_pushlstring(L, modestr, 9);
lua_setfield(L, -2, "modestr");
lua_pushinteger(L, buf->st_nlink);
lua_setfield(L, -2, "nlink");
lua_pushinteger(L, buf->st_uid);
lua_setfield(L, -2, "uid");
lua_pushinteger(L, buf->st_gid);
lua_setfield(L, -2, "gid");
lua_pushinteger(L, buf->st_rdev);
lua_setfield(L, -2, "rdev");
lua_pushnumber(L, buf->st_size);
lua_setfield(L, -2, "size");
lua_pushinteger(L, buf->st_atime);
lua_setfield(L, -2, "atime");
lua_pushinteger(L, buf->st_mtime);
lua_setfield(L, -2, "mtime");
lua_pushinteger(L, buf->st_ctime);
lua_setfield(L, -2, "ctime");
#ifndef __WINNT__
lua_pushinteger(L, buf->st_blksize);
lua_setfield(L, -2, "blksize");
lua_pushinteger(L, buf->st_blocks);
lua_setfield(L, -2, "blocks");
#endif
return 1;
}
static int nixio_stat(lua_State *L) {
nixio_stat_t buf;
if (stat(luaL_checkstring(L, 1), &buf)) {
return nixio__perror(L);
} else {
nixio__push_stat(L, &buf);
if (lua_isstring(L, 2)) {
lua_getfield(L, -1, lua_tostring(L, 2));
}
return 1;
}
}
static int nixio_lstat(lua_State *L) {
nixio_stat_t buf;
if (stat(luaL_checkstring(L, 1), &buf)) {
return nixio__perror(L);
} else {
nixio__push_stat(L, &buf);
if (lua_isstring(L, 2)) {
lua_getfield(L, -1, lua_tostring(L, 2));
}
return 1;
}
}
#ifndef __WINNT__
static int nixio_chown(lua_State *L) {
return nixio__pstatus(L,
!chown(
luaL_checkstring(L, 1),
lua_isnoneornil(L, 2) ? -1 : nixio__check_user(L, 2),
lua_isnoneornil(L, 3) ? -1 : nixio__check_group(L, 3)
)
);
}
static int nixio_lchown(lua_State *L) {
return nixio__pstatus(L,
!lchown(
luaL_checkstring(L, 1),
lua_isnoneornil(L, 2) ? -1 : nixio__check_user(L, 2),
lua_isnoneornil(L, 3) ? -1 : nixio__check_group(L, 3)
)
);
}
static int nixio_mkfifo(lua_State *L) {
return nixio__pstatus(L,
!mkfifo(luaL_checkstring(L, 1), nixio__check_mode(L, 2, -1)));
}
static int nixio_symlink(lua_State *L) {
return nixio__pstatus(L,
!symlink(luaL_checkstring(L, 1), luaL_checkstring(L, 2)));
}
static int nixio_readlink(lua_State *L) {
char dest[PATH_MAX];
ssize_t res = readlink(luaL_checkstring(L, 1), dest, sizeof(dest));
if (res < 0) {
return nixio__perror(L);
} else {
lua_pushlstring(L, dest, res);
return 1;
}
}
#include <glob.h>
typedef struct {
glob_t gl;
size_t pos;
int freed;
} nixio_glob_t;
static int nixio_glob__iter(lua_State *L) {
nixio_glob_t *globres = lua_touserdata(L, lua_upvalueindex(1));
if (!globres->freed && globres->pos < globres->gl.gl_pathc) {
lua_pushstring(L, globres->gl.gl_pathv[(globres->pos)++]);
} else {
if (!globres->freed) {
globfree(&globres->gl);
globres->freed = 1;
}
lua_pushnil(L);
}
return 1;
}
static int nixio_glob__gc(lua_State *L) {
nixio_glob_t *globres = lua_touserdata(L, 1);
if (globres && !globres->freed) {
globres->freed = 1;
globfree(&globres->gl);
}
return 0;
}
static int nixio_glob(lua_State *L) {
const char *pattern = luaL_optstring(L, 1, "*");
nixio_glob_t *globres = lua_newuserdata(L, sizeof(nixio_glob_t));
if (!globres) {
return luaL_error(L, NIXIO_OOM);
}
globres->pos = 0;
globres->freed = 0;
int globstat = glob(pattern, 0, NULL, &globres->gl);
if (globstat == GLOB_NOMATCH) {
lua_pushcfunction(L, nixio__nulliter);
lua_pushinteger(L, 0);
} else if (globstat) {
return nixio__perror(L);
} else {
luaL_getmetatable(L, NIXIO_GLOB_META);
lua_setmetatable(L, -2);
lua_pushcclosure(L, nixio_glob__iter, 1);
lua_pushinteger(L, globres->gl.gl_pathc);
}
return 2;
}
#include <sys/statvfs.h>
static int nixio__push_statvfs(lua_State *L, struct statvfs *buf) {
lua_createtable(L, 0, 12);
lua_pushnumber(L, buf->f_bavail);
lua_setfield(L, -2, "bavail");
lua_pushnumber(L, buf->f_bfree);
lua_setfield(L, -2, "bfree");
lua_pushnumber(L, buf->f_blocks);
lua_setfield(L, -2, "blocks");
lua_pushnumber(L, buf->f_bsize);
lua_setfield(L, -2, "bsize");
lua_pushnumber(L, buf->f_frsize);
lua_setfield(L, -2, "frsize");
lua_pushnumber(L, buf->f_favail);
lua_setfield(L, -2, "favail");
lua_pushnumber(L, buf->f_ffree);
lua_setfield(L, -2, "ffree");
lua_pushnumber(L, buf->f_files);
lua_setfield(L, -2, "files");
lua_pushnumber(L, buf->f_flag);
lua_setfield(L, -2, "flag");
lua_pushnumber(L, buf->f_fsid);
lua_setfield(L, -2, "fsid");
lua_pushnumber(L, buf->f_namemax);
lua_setfield(L, -2, "namemax");
return 1;
}
static int nixio_statvfs(lua_State *L) {
struct statvfs buf;
if (statvfs(luaL_optstring(L, 1, "."), &buf)) {
return nixio__perror(L);
} else {
return nixio__push_statvfs(L, &buf);
}
}
#endif /* !__WINNT__ */
/* module table */
static const luaL_reg R[] = {
#ifndef __WINNT__
{"glob", nixio_glob},
{"mkfifo", nixio_mkfifo},
{"symlink", nixio_symlink},
{"readlink", nixio_readlink},
{"chown", nixio_chown},
{"lchown", nixio_lchown},
{"statvfs", nixio_statvfs},
#endif
{"chmod", nixio_chmod},
{"access", nixio_access},
{"basename", nixio_basename},
{"dir", nixio_dir},
{"dirname", nixio_dirname},
{"realpath", nixio_realpath},
{"mkdir", nixio_mkdir},
{"rmdir", nixio_rmdir},
{"link", nixio_link},
{"unlink", nixio_unlink},
{"utimes", nixio_utimes},
{"rename", nixio_rename},
{"remove", nixio_remove},
{"stat", nixio_stat},
{"lstat", nixio_lstat},
{NULL, NULL}
};
void nixio_open_fs(lua_State *L) {
lua_newtable(L);
luaL_register(L, NULL, R);
lua_setfield(L, -2, "fs");
luaL_newmetatable(L, NIXIO_DIR_META);
lua_pushcfunction(L, nixio_dir__gc);
lua_setfield(L, -2, "__gc");
lua_pop(L, 1);
#ifndef __WINNT__
luaL_newmetatable(L, NIXIO_GLOB_META);
lua_pushcfunction(L, nixio_glob__gc);
lua_setfield(L, -2, "__gc");
lua_pop(L, 1);
#endif
}

95
libs/nixio/src/io.c
View file

@ -18,12 +18,10 @@
#include "nixio.h"
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
/**
@ -33,34 +31,46 @@ static int nixio_sock__sendto(lua_State *L, int to) {
nixio_sock *sock = nixio__checksock(L);
struct sockaddr *addr = NULL;
socklen_t alen = 0;
int argoff = 2;
if (to) {
const char *address = luaL_checklstring(L, 3, NULL);
uint16_t port = (uint16_t)luaL_checkinteger(L, 4);
argoff += 2;
const char *address = luaL_checkstring(L, 3);
struct sockaddr_storage addrstor;
addr = (struct sockaddr*)&addrstor;
if (sock->domain == AF_INET) {
struct sockaddr_in *inetaddr = (struct sockaddr_in *)addr;
if (inet_pton(sock->domain, address, &inetaddr->sin_addr) < 0) {
return luaL_argerror(L, 3, "invalid address");
}
inetaddr->sin_port = htons(port);
alen = sizeof(*inetaddr);
} else if (sock->domain == AF_INET6) {
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6 *)addr;
if (inet_pton(sock->domain, address, &inet6addr->sin6_addr) < 0) {
return luaL_argerror(L, 3, "invalid address");
}
inet6addr->sin6_port = htons(port);
alen = sizeof(*inet6addr);
} else {
return luaL_argerror(L, 1, "supported families: inet, inet6");
nixio_addr naddr;
memset(&naddr, 0, sizeof(naddr));
strncpy(naddr.host, address, sizeof(naddr.host) - 1);
naddr.port = (uint16_t)luaL_checkinteger(L, 4);
naddr.family = sock->domain;
if (nixio__addr_write(&naddr, addr)) {
return nixio__perror_s(L);
}
}
size_t len;
ssize_t sent;
const char *data = luaL_checklstring(L, 2, &len);
if (lua_gettop(L) > argoff) {
int offset = luaL_optint(L, argoff + 1, 0);
if (offset) {
if (offset < len) {
data += offset;
len -= offset;
} else {
len = 0;
}
}
unsigned int wlen = luaL_optint(L, argoff + 2, len);
if (wlen < len) {
len = wlen;
}
}
do {
sent = sendto(sock->fd, data, len, 0, addr, alen);
} while(sent == -1 && errno == EINTR);
@ -68,7 +78,7 @@ static int nixio_sock__sendto(lua_State *L, int to) {
lua_pushinteger(L, sent);
return 1;
} else {
return nixio__perror(L);
return nixio__perror_s(L);
}
}
@ -94,7 +104,7 @@ static int nixio_sock__recvfrom(lua_State *L, int from) {
nixio_sock *sock = nixio__checksock(L);
char buffer[NIXIO_BUFFERSIZE];
struct sockaddr_storage addrobj;
int req = luaL_checkinteger(L, 2);
uint req = luaL_checkinteger(L, 2);
int readc;
if (from && sock->domain != AF_INET && sock->domain != AF_INET6) {
@ -111,38 +121,31 @@ static int nixio_sock__recvfrom(lua_State *L, int from) {
readc = recvfrom(sock->fd, buffer, req, 0, addr, &alen);
} while (readc == -1 && errno == EINTR);
#ifdef __WINNT__
if (readc < 0) {
return nixio__perror(L);
int e = WSAGetLastError();
if (e == WSAECONNRESET || e == WSAECONNABORTED || e == WSAESHUTDOWN) {
readc = 0;
}
}
#endif
if (readc < 0) {
return nixio__perror_s(L);
} else {
lua_pushlstring(L, buffer, readc);
if (!from) {
return 1;
} else {
char ipaddr[INET6_ADDRSTRLEN];
void *binaddr;
uint16_t port;
if (addrobj.ss_family == AF_INET) {
struct sockaddr_in *inetaddr = (struct sockaddr_in*)addr;
port = inetaddr->sin_port;
binaddr = &inetaddr->sin_addr;
} else if (addrobj.ss_family == AF_INET6) {
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6*)addr;
port = inet6addr->sin6_port;
binaddr = &inet6addr->sin6_addr;
nixio_addr naddr;
if (!nixio__addr_parse(&naddr, (struct sockaddr *)&addrobj)) {
lua_pushstring(L, naddr.host);
lua_pushnumber(L, naddr.port);
return 3;
} else {
return luaL_error(L, "unknown address family");
return 1;
}
if (!inet_ntop(addrobj.ss_family, binaddr, ipaddr, sizeof(ipaddr))) {
return nixio__perror(L);
}
lua_pushstring(L, ipaddr);
lua_pushinteger(L, ntohs(port));
return 3;
}
}
}

220
libs/nixio/src/mingw-compat.c Normal file
View file

@ -0,0 +1,220 @@
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nixio.h"
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/locking.h>
#include <sys/time.h>
#include <sys/utime.h>
void nixio_open__mingw(lua_State *L) {
_fmode = _O_BINARY;
WSADATA wsa;
if (WSAStartup(MAKEWORD(2, 2), &wsa)) {
luaL_error(L, "Unable to initialize Winsock");
}
lua_newtable(L);
NIXIO_WSA_CONSTANT(WSAEACCES);
NIXIO_WSA_CONSTANT(WSAEINTR);
NIXIO_WSA_CONSTANT(WSAEINVAL);
NIXIO_WSA_CONSTANT(WSAEBADF);
NIXIO_WSA_CONSTANT(WSAEFAULT);
NIXIO_WSA_CONSTANT(WSAEMFILE);
NIXIO_WSA_CONSTANT(WSAENAMETOOLONG);
NIXIO_WSA_CONSTANT(WSAELOOP);
NIXIO_WSA_CONSTANT(WSAEAFNOSUPPORT);
NIXIO_WSA_CONSTANT(WSAENOBUFS);
NIXIO_WSA_CONSTANT(WSAEPROTONOSUPPORT);
NIXIO_WSA_CONSTANT(WSAENOPROTOOPT);
NIXIO_WSA_CONSTANT(WSAEADDRINUSE);
NIXIO_WSA_CONSTANT(WSAENETDOWN);
NIXIO_WSA_CONSTANT(WSAENETUNREACH);
NIXIO_WSA_CONSTANT(WSAECONNABORTED);
NIXIO_WSA_CONSTANT(WSAECONNRESET);
lua_setfield(L, -2, "const_sock");
}
const char* nixio__mgw_inet_ntop
(int af, const void *src, char *dst, socklen_t size) {
struct sockaddr_storage saddr;
memset(&saddr, 0, sizeof(saddr));
DWORD hostlen = size, sl;
if (af == AF_INET) {
struct sockaddr_in *saddr4 = (struct sockaddr_in *)&saddr;
memcpy(&saddr4->sin_addr, src, sizeof(saddr4->sin_addr));
saddr4->sin_family = AF_INET;
saddr4->sin_port = 0;
sl = sizeof(struct sockaddr_in);
} else if (af == AF_INET6) {
struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *)&saddr;
memcpy(&saddr6->sin6_addr, src, sizeof(saddr6->sin6_addr));
saddr6->sin6_family = AF_INET6;
saddr6->sin6_port = 0;
sl = sizeof(struct sockaddr_in6);
} else {
return NULL;
}
if (WSAAddressToString((struct sockaddr*)&saddr, sl, NULL, dst, &hostlen)) {
return NULL;
}
return dst;
}
int nixio__mgw_inet_pton (int af, const char *src, void *dst) {
struct sockaddr_storage sa;
int sl = sizeof(sa);
if (!WSAStringToAddress((char*)src, af, NULL, (struct sockaddr*)&sa, &sl)) {
if (af == AF_INET) {
struct in_addr ina = ((struct sockaddr_in *)&sa)->sin_addr;
memcpy(dst, &ina, sizeof(ina));
return 1;
} else if (af == AF_INET6) {
struct in_addr6 ina6 = ((struct sockaddr_in6 *)&sa)->sin6_addr;
memcpy(dst, &ina6, sizeof(ina6));
return 1;
} else {
WSASetLastError(WSAEAFNOSUPPORT);
return -1;
}
} else {
return -1;
}
}
int nixio__mgw_nanosleep(const struct timespec *req, struct timespec *rem) {
if (rem) {
rem->tv_sec = 0;
rem->tv_nsec = 0;
}
Sleep(req->tv_sec * 1000 + req->tv_nsec * 1000000);
return 0;
}
int nixio__mgw_poll(struct pollfd *fds, int nfds, int timeout) {
if (!fds || !nfds) {
Sleep(timeout);
return 0;
}
struct timeval tv;
int high = 0, rf = 0, wf = 0, ef = 0;
fd_set rfds, wfds, efds;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&efds);
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
for (int i = 0; i < nfds; i++) {
if (fds->events & POLLIN) {
FD_SET(fds->fd, &rfds);
rf++;
}
if (fds->events & POLLOUT) {
FD_SET(fds->fd, &wfds);
wf++;
}
if (fds->events & POLLERR) {
FD_SET(fds->fd, &efds);
ef++;
}
if (fds->fd > high) {
high = fds->fd;
}
}
int stat = select(high + 1, (rf) ? &rfds : NULL,
(wf) ? &wfds : NULL, (ef) ? &efds : NULL, &tv);
if (stat < 1) {
errno = WSAGetLastError();
return stat;
}
high = 0;
for (int i = 0; i < nfds; i++) {
fds->revents = 0;
if ((fds->events & POLLIN) && FD_ISSET(fds->fd, &rfds)) {
fds->revents |= POLLIN;
}
if ((fds->events & POLLOUT) && FD_ISSET(fds->fd, &wfds)) {
fds->revents |= POLLOUT;
}
if ((fds->events & POLLERR) && FD_ISSET(fds->fd, &efds)) {
fds->revents |= POLLERR;
}
if (fds->revents) {
high++;
}
}
return high;
}
int nixio__mgw_lockf(int fd, int cmd, off_t len) {
int stat;
if (cmd == F_LOCK) {
do {
stat = _locking(fd, _LK_LOCK, len);
} while (stat == -1 && errno == EDEADLOCK);
} else if (cmd == F_TLOCK) {
stat = _locking(fd, _LK_NBLCK, len);
} else if (cmd == F_ULOCK) {
stat = _locking(fd, _LK_UNLCK, len);
} else {
stat = -1;
errno = EINVAL;
}
return stat;
}
char* nixio__mgw_realpath(const char *path, char *resolved) {
if (GetFullPathName(path, PATH_MAX, resolved, NULL)) {
return resolved;
} else {
errno = GetLastError();
return NULL;
}
}
int nixio__mgw_link(const char *oldpath, const char *newpath) {
if (!CreateHardLink(newpath, oldpath, NULL)) {
errno = GetLastError();
return -1;
} else {
return 0;
}
}
int nixio__mgw_utimes(const char *filename, const struct timeval times[2]) {
struct _utimbuf timebuffer;
timebuffer.actime = times[0].tv_sec;
timebuffer.modtime = times[1].tv_sec;
return _utime(filename, &timebuffer);
}

112
libs/nixio/src/mingw-compat.h Normal file
View file

@ -0,0 +1,112 @@
#ifndef NIXIO_MINGW_COMPAT_H_
#define NIXIO_MINGW_COMPAT_H_
#include <winsock2.h>
#include <ws2tcpip.h>
#include <io.h>
#include <process.h>
#include <stdint.h>
#include <sys/stat.h>
#include <errno.h>
typedef unsigned int uint;
typedef unsigned long ulong;
#define S_ISLNK(m) 0
#define S_ISSOCK(m) 0
#define EWOULDBLOCK WSAEWOULDBLOCK
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#define ENOPROTOOPT WSAENOPROTOOPT
#define SHUT_RD SD_RECEIVE
#define SHUT_WR SD_SEND
#define SHUT_RDWR SD_BOTH
#define pipe(fds) _pipe(fds, 65536, 0)
#define fsync _commit
#define lseek lseek64
#define stat _stati64
#define lstat _stati64
#define fstat _fstati64
#define F_LOCK 1
#define F_ULOCK 0
#define F_TLOCK 2
#define F_TEST 3
int nixio__mgw_lockf(int fd, int cmd, off_t len);
#define lockf nixio__mgw_lockf
const char* nixio__mgw_inet_ntop
(int af, const void *src, char *dst, socklen_t size);
#define inet_ntop nixio__mgw_inet_ntop
int nixio__mgw_inet_pton (int af, const char *src, void *dst);
#define inet_pton nixio__mgw_inet_pton
#ifndef POLLIN
#define POLLIN 0x001
#define POLLOUT 0x004
#define POLLERR 0x008
struct pollfd {
int fd;
short events;
short revents;
};
#endif
typedef int nfds_t;
int nixio__mgw_poll(struct pollfd *fds, nfds_t nfds, int timeout);
#define poll nixio__mgw_poll
struct timespec {
time_t tv_sec;
long tv_nsec;
};
int nixio__mgw_nanosleep(const struct timespec *req, struct timespec *rem);
#define nanosleep nixio__mgw_nanosleep
char* nixio__mgw_realpath(const char *path, char *resolved);
#define realpath nixio__mgw_realpath
int nixio__mgw_link(const char *oldpath, const char *newpath);
#define link nixio__mgw_link
int nixio__mgw_utimes(const char *filename, const struct timeval times[2]);
#define utimes nixio__mgw_utimes
#define setenv(k, v, o) !SetEnvironmentVariable(k, v)
#define unsetenv(k) !SetEnvironmentVariable(k, NULL)
#define execv(p, a) execv(p, (const char* const*)a)
#define execvp(p, a) execvp(p, (const char* const*)a)
#define execve(p, a, e) execve(p, (const char* const*)a, (const char* const*)e)
#define mkdir(p, m) mkdir(p)
#define nixio__perror_s(L) \
errno = WSAGetLastError(); \
return nixio__perror(L);
#define nixio__pstatus_s(L, c) \
errno = WSAGetLastError(); \
return nixio__pstatus(L, c);
#define NIXIO_WSA_CONSTANT(x) \
lua_pushinteger(L, x); \
lua_setfield(L, -2, #x+3);
void nixio_open__mingw(lua_State *L);
#endif /* NIXIO_MINGW_COMPAT_H_ */

30
libs/nixio/src/nixio-tls.h
View file

@ -2,9 +2,12 @@
#define NIXIO_TLS_H_
#include "nixio.h"
#include <sys/types.h>
#ifndef WITHOUT_OPENSSL
#include <openssl/ssl.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#endif
#define NIXIO_TLS_CTX_META "nixio.tls.ctx"
@ -20,4 +23,31 @@ typedef struct nixio_tls_socket {
#endif
} nixio_tls_sock;
#define NIXIO_CRYPTO_HASH_META "nixio.crypto.hash"
#define NIXIO_DIGEST_SIZE 64
#define NIXIO_CRYPTO_BLOCK_SIZE 64
#define NIXIO_HASH_NONE 0
#define NIXIO_HASH_MD5 0x01
#define NIXIO_HASH_SHA1 0x02
#define NIXIO_HMAC_BIT 0x40
typedef int(*nixio_hash_initcb)(void *);
typedef int(*nixio_hash_updatecb)(void *, const void *, unsigned long);
typedef int(*nixio_hash_finalcb)(unsigned char *, void *);
typedef struct nixio_hash_obj {
uint type;
unsigned char digest[NIXIO_DIGEST_SIZE];
size_t digest_size;
unsigned char key[NIXIO_CRYPTO_BLOCK_SIZE];
size_t key_size;
size_t block_size;
void *ctx;
nixio_hash_initcb init;
nixio_hash_updatecb update;
nixio_hash_finalcb final;
} nixio_hash;
#endif /* NIXIO_TLS_H_ */

64
libs/nixio/src/nixio.c
View file

@ -27,7 +27,7 @@
/* pushes nil, error number and errstring on the stack */
int nixio__perror(lua_State *L) {
if (errno == EAGAIN) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
lua_pushboolean(L, 0);
} else {
lua_pushnil(L);
@ -85,6 +85,17 @@ int nixio__tofd(lua_State *L, int ud) {
return fd;
}
/* An empty iterator */
int nixio__nulliter(lua_State *L) {
lua_pushnil(L);
return 1;
}
static int nixio_errno(lua_State *L) {
lua_pushinteger(L, errno);
return 1;
}
static int nixio_strerror(lua_State *L) {
lua_pushstring(L, strerror(luaL_checkinteger(L, 1)));
return 1;
@ -92,12 +103,13 @@ static int nixio_strerror(lua_State *L) {
/* object table */
static const luaL_reg R[] = {
{"errno", nixio_errno},
{"strerror", nixio_strerror},
{NULL, NULL}
};
/* entry point */
LUALIB_API int luaopen_nixio(lua_State *L) {
NIXIO_API int luaopen_nixio(lua_State *L) {
/* create metatable */
luaL_newmetatable(L, NIXIO_META);
@ -113,6 +125,9 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
lua_setfield(L, -2, "meta_socket");
/* register methods */
#ifdef __WINNT__
nixio_open__mingw(L);
#endif
nixio_open_file(L);
nixio_open_socket(L);
nixio_open_sockopt(L);
@ -123,6 +138,11 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
nixio_open_splice(L);
nixio_open_process(L);
nixio_open_syslog(L);
nixio_open_bit(L);
nixio_open_bin(L);
nixio_open_fs(L);
nixio_open_user(L);
nixio_open_tls_crypto(L);
nixio_open_tls_context(L);
nixio_open_tls_socket(L);
@ -131,13 +151,21 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
lua_setfield(L, -2, "version");
/* some constants */
lua_createtable(L, 0, 49);
lua_newtable(L);
lua_pushliteral(L, NIXIO_SEP);
lua_setfield(L, -2, "sep");
lua_pushliteral(L, NIXIO_PATHSEP);
lua_setfield(L, -2, "pathsep");
lua_pushinteger(L, NIXIO_BUFFERSIZE);
lua_setfield(L, -2, "buffersize");
NIXIO_PUSH_CONSTANT(EACCES);
NIXIO_PUSH_CONSTANT(EINTR);
NIXIO_PUSH_CONSTANT(ENOSYS);
NIXIO_PUSH_CONSTANT(EINVAL);
NIXIO_PUSH_CONSTANT(EWOULDBLOCK);
NIXIO_PUSH_CONSTANT(EAGAIN);
NIXIO_PUSH_CONSTANT(ENOMEM);
NIXIO_PUSH_CONSTANT(ENOENT);
@ -152,37 +180,51 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
NIXIO_PUSH_CONSTANT(EISDIR);
NIXIO_PUSH_CONSTANT(EPERM);
NIXIO_PUSH_CONSTANT(EEXIST);
NIXIO_PUSH_CONSTANT(ELOOP);
NIXIO_PUSH_CONSTANT(EMFILE);
NIXIO_PUSH_CONSTANT(ENAMETOOLONG);
NIXIO_PUSH_CONSTANT(ENFILE);
NIXIO_PUSH_CONSTANT(ENODEV);
NIXIO_PUSH_CONSTANT(EXDEV);
NIXIO_PUSH_CONSTANT(ENOTDIR);
NIXIO_PUSH_CONSTANT(ENXIO);
NIXIO_PUSH_CONSTANT(EOVERFLOW);
NIXIO_PUSH_CONSTANT(EROFS);
NIXIO_PUSH_CONSTANT(EBUSY);
NIXIO_PUSH_CONSTANT(ESRCH);
NIXIO_PUSH_CONSTANT(SIGINT);
NIXIO_PUSH_CONSTANT(SIGTERM);
NIXIO_PUSH_CONSTANT(SIGSEGV);
#ifndef __WINNT__
NIXIO_PUSH_CONSTANT(EWOULDBLOCK);
NIXIO_PUSH_CONSTANT(ELOOP);
NIXIO_PUSH_CONSTANT(EOVERFLOW);
NIXIO_PUSH_CONSTANT(ETXTBSY);
NIXIO_PUSH_CONSTANT(EAFNOSUPPORT);
NIXIO_PUSH_CONSTANT(ENOBUFS);
NIXIO_PUSH_CONSTANT(EPROTONOSUPPORT);
NIXIO_PUSH_CONSTANT(ENOPROTOOPT);
NIXIO_PUSH_CONSTANT(EBUSY);
NIXIO_PUSH_CONSTANT(ESRCH);
NIXIO_PUSH_CONSTANT(EADDRINUSE);
NIXIO_PUSH_CONSTANT(ENETDOWN);
NIXIO_PUSH_CONSTANT(ENETUNREACH);
NIXIO_PUSH_CONSTANT(SIGALRM);
NIXIO_PUSH_CONSTANT(SIGINT);
NIXIO_PUSH_CONSTANT(SIGTERM);
NIXIO_PUSH_CONSTANT(SIGKILL);
NIXIO_PUSH_CONSTANT(SIGHUP);
NIXIO_PUSH_CONSTANT(SIGSTOP);
NIXIO_PUSH_CONSTANT(SIGCONT);
NIXIO_PUSH_CONSTANT(SIGSEGV);
NIXIO_PUSH_CONSTANT(SIGCHLD);
NIXIO_PUSH_CONSTANT(SIGQUIT);
NIXIO_PUSH_CONSTANT(SIGUSR1);
NIXIO_PUSH_CONSTANT(SIGUSR2);
NIXIO_PUSH_CONSTANT(SIGIO);
NIXIO_PUSH_CONSTANT(SIGURG);
NIXIO_PUSH_CONSTANT(SIGPIPE);
lua_pushvalue(L, -1);
lua_setfield(L, -3, "const_sock");
signal(SIGPIPE, SIG_IGN);
#endif /* !__WINNT__ */
lua_setfield(L, -2, "const");
/* remove meta table */

66
libs/nixio/src/nixio.h
View file

@ -1,9 +1,12 @@
#ifndef NIXIO_H_
#define NIXIO_H_
#define NIXIO_OOM "out of memory"
#define NIXIO_META "nixio.socket"
#define NIXIO_FILE_META "nixio.file"
#define NIXIO_BUFFERSIZE 8096
#define NIXIO_GLOB_META "nixio.glob"
#define NIXIO_DIR_META "nixio.dir"
#define _FILE_OFFSET_BITS 64
#define NIXIO_PUSH_CONSTANT(x) \
@ -17,6 +20,8 @@
#include <lualib.h>
#include <lauxlib.h>
#define NIXIO_BUFFERSIZE 8192
typedef struct nixio_socket {
int fd;
int domain;
@ -24,12 +29,66 @@ typedef struct nixio_socket {
int protocol;
} nixio_sock;
typedef struct nixio_address {
int family;
char host[128];
int port;
} nixio_addr;
int nixio__perror(lua_State *L);
int nixio__pstatus(lua_State *L, int condition);
#ifndef __WINNT__
#define NIXIO_API extern
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <net/if.h>
#include <sys/un.h>
#include <netdb.h>
#include <poll.h>
#include <sys/stat.h>
#include <errno.h>
#define NIXIO_SEP "/"
#define NIXIO_PATHSEP ":"
#define nixio__perror_s nixio__perror
#define nixio__pstatus_s nixio__pstatus
int nixio__check_group(lua_State *L, int idx);
int nixio__check_user(lua_State *L, int idx);
typedef struct stat nixio_stat_t;
#else /* __WINNT__ */
#define NIXIO_API extern __declspec(dllexport)
#define NIXIO_SEP "\\"
#define NIXIO_PATHSEP ";"
#include "mingw-compat.h"
typedef struct _stati64 nixio_stat_t;
#endif
nixio_sock* nixio__checksock(lua_State *L);
int nixio__checksockfd(lua_State *L);
int nixio__checkfd(lua_State *L, int ud);
int nixio__tofd(lua_State *L, int ud);
int nixio__nulliter(lua_State *L);
int nixio__addr_parse(nixio_addr *addr, struct sockaddr *saddr);
int nixio__addr_write(nixio_addr *addr, struct sockaddr *saddr);
int nixio__check_mode(lua_State *L, int idx, int def);
int nixio__mode_write(int mode, char *modestr);
int nixio__push_stat(lua_State *L, nixio_stat_t *buf);
/* Module functions */
void nixio_open_file(lua_State *L);
@ -42,6 +101,11 @@ void nixio_open_io(lua_State *L);
void nixio_open_splice(lua_State *L);
void nixio_open_process(lua_State *L);
void nixio_open_syslog(lua_State *L);
void nixio_open_bit(lua_State *L);
void nixio_open_bin(lua_State *L);
void nixio_open_fs(lua_State *L);
void nixio_open_user(lua_State *L);
void nixio_open_tls_crypto(lua_State *L);
void nixio_open_tls_context(lua_State *L);
void nixio_open_tls_socket(lua_State *L);

32
libs/nixio/src/poll.c
View file

@ -17,12 +17,10 @@
*/
#include "nixio.h"
#include <poll.h>
#include <time.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include "nixio.h"
/**
@ -71,11 +69,13 @@ static int nixio_poll_flags(lua_State *L) {
flags = luaL_checkinteger(L, 1);
lua_newtable(L);
nixio_poll_flags__r(L, &flags, POLLIN, "in");
nixio_poll_flags__r(L, &flags, POLLPRI, "pri");
nixio_poll_flags__r(L, &flags, POLLOUT, "out");
nixio_poll_flags__r(L, &flags, POLLERR, "err");
#ifndef __WINNT__
nixio_poll_flags__r(L, &flags, POLLPRI, "pri");
nixio_poll_flags__r(L, &flags, POLLHUP, "hup");
nixio_poll_flags__r(L, &flags, POLLNVAL, "nval");
#endif
} else {
flags = 0;
const int j = lua_gettop(L);
@ -83,16 +83,22 @@ static int nixio_poll_flags(lua_State *L) {
const char *flag = luaL_checkstring(L, i);
if (!strcmp(flag, "in")) {
flags |= POLLIN;
} else if (!strcmp(flag, "pri")) {
flags |= POLLPRI;
} else if (!strcmp(flag, "out")) {
flags |= POLLOUT;
} else if (!strcmp(flag, "err")) {
flags |= POLLERR;
} else if (!strcmp(flag, "pri")) {
#ifndef __WINNT__
flags |= POLLPRI;
#endif
} else if (!strcmp(flag, "hup")) {
#ifndef __WINNT__
flags |= POLLHUP;
#endif
} else if (!strcmp(flag, "nval")) {
#ifndef __WINNT__
flags |= POLLNVAL;
#endif
} else {
return luaL_argerror(L, i,
"supported values: in, pri, out, err, hup, nval");
@ -114,11 +120,19 @@ static int nixio_poll(lua_State *L) {
/* we are being abused as sleep() replacement... */
if (lua_isnoneornil(L, 1) || len < 1) {
return nixio__pstatus(L, !poll(NULL, 0, timeout));
if (!poll(NULL, 0, timeout)) {
lua_pushinteger(L, 0);
return 1;
} else {
return nixio__perror(L);
}
}
luaL_checktype(L, 1, LUA_TTABLE);
struct pollfd *fds = calloc(len, sizeof(struct pollfd));
if (!fds) {
return luaL_error(L, NIXIO_OOM);
}
for (i = 0; i < len; i++) {
lua_rawgeti(L, 1, i+1);
@ -145,7 +159,11 @@ static int nixio_poll(lua_State *L) {
status = poll(fds, (nfds_t)len, timeout);
if (status < 1) {
if (status == 0) {
free(fds);
lua_pushboolean(L, 0);
return 1;
} else if (status < 0) {
free(fds);
return nixio__perror(L);
}

394
libs/nixio/src/process.c
View file

@ -17,15 +17,98 @@
*/
#include "nixio.h"
#include <pwd.h>
#include <grp.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <signal.h>
#define NIXIO_EXECVE 0x01
#define NIXIO_EXECV 0x02
#define NIXIO_EXECVP 0x03
int nixio__exec(lua_State *L, int m) {
const char *path = luaL_checkstring(L, 1);
const char *arg;
int argn, i;
if (m == NIXIO_EXECVE) {
luaL_checktype(L, 2, LUA_TTABLE);
argn = lua_objlen(L, 2) + 1;
} else {
argn = lua_gettop(L);
}
char **args = lua_newuserdata(L, sizeof(char*) * (argn + 1));
args[argn] = NULL;
args[0] = (char *)path;
if (m == NIXIO_EXECVE) {
for (i = 1; i < argn; i++) {
lua_rawgeti(L, 2, i);
arg = lua_tostring(L, -1);
luaL_argcheck(L, arg, 2, "invalid argument");
args[i] = (char *)arg;
}
if (lua_isnoneornil(L, 3)) {
execv(path, args);
} else {
luaL_checktype(L, 3, LUA_TTABLE);
argn = 0;
lua_pushnil(L);
while (lua_next(L, 3)) {
if (!lua_checkstack(L, 1)) {
lua_settop(L, 0);
return luaL_error(L, "stack overflow");
}
if (!lua_type(L, -2) != LUA_TSTRING || !lua_isstring(L, -1)) {
return luaL_argerror(L, 3, "invalid environment");
}
lua_pushfstring(L, "%s=%s",
lua_tostring(L, -2), lua_tostring(L, -1));
lua_insert(L, 4);
lua_pop(L, 1);
argn++;
}
char **env = lua_newuserdata(L, sizeof(char*) * (argn + 1));
env[argn] = NULL;
for (i = 1; i < argn; i++) {
env[i-1] = (char *)lua_tostring(L, -i);
}
execve(path, args, env);
}
} else {
for (i = 2; i <= argn; i++) {
arg = luaL_checkstring(L, i);
args[i-1] = (char *)arg;
}
if (m == NIXIO_EXECV) {
execv(path, args);
} else {
execvp(path, args);
}
}
return nixio__perror(L);
}
#ifndef __WINNT__
#include <sys/utsname.h>
#include <sys/times.h>
#include <sys/wait.h>
#include <pwd.h>
#include <grp.h>
static int nixio_fork(lua_State *L) {
pid_t pid = fork();
if (pid == -1) {
@ -36,16 +119,55 @@ static int nixio_fork(lua_State *L) {
}
}
static int nixio_signal(lua_State *L) {
int sig = luaL_checkinteger(L, 1);
const char *val = luaL_checkstring(L, 2);
static int nixio_kill(lua_State *L) {
return nixio__pstatus(L, !kill(luaL_checkint(L, 1), luaL_checkint(L, 2)));
}
if (!strcmp(val, "ign") || !strcmp(val, "ignore")) {
return nixio__pstatus(L, signal(sig, SIG_IGN) != SIG_ERR);
} else if (!strcmp(val, "dfl") || !strcmp(val, "default")) {
return nixio__pstatus(L, signal(sig, SIG_DFL) != SIG_ERR);
static int nixio_getppid(lua_State *L) {
lua_pushinteger(L, getppid());
return 1;
}
static int nixio_getuid(lua_State *L) {
lua_pushinteger(L, getuid());
return 1;
}
static int nixio_getgid(lua_State *L) {
lua_pushinteger(L, getgid());
return 1;
}
static int nixio_setgid(lua_State *L) {
return nixio__pstatus(L, !setgid(nixio__check_group(L, 1)));
}
static int nixio_setuid(lua_State *L) {
return nixio__pstatus(L, !setuid(nixio__check_user(L, 1)));
}
static int nixio_nice(lua_State *L) {
int nval = luaL_checkint(L, 1);
errno = 0;
nval = nice(nval);
if (nval == -1 && errno) {
return nixio__perror(L);
} else {
return luaL_argerror(L, 2, "supported values: ign, dfl");
lua_pushinteger(L, nval);
return 1;
}
}
static int nixio_setsid(lua_State *L) {
pid_t pid = setsid();
if (pid == -1) {
return nixio__perror(L);
} else {
lua_pushinteger(L, pid);
return 1;
}
}
@ -97,8 +219,71 @@ static int nixio_wait(lua_State *L) {
return 3;
}
static int nixio_kill(lua_State *L) {
return nixio__pstatus(L, !kill(luaL_checkint(L, 1), luaL_checkint(L, 2)));
static int nixio_times(lua_State *L) {
struct tms buf;
if (times(&buf) == -1) {
return nixio__perror(L);
} else {
lua_createtable(L, 0, 4);
lua_pushnumber(L, buf.tms_cstime);
lua_setfield(L, -2, "cstime");
lua_pushnumber(L, buf.tms_cutime);
lua_setfield(L, -2, "cutime");
lua_pushnumber(L, buf.tms_stime);
lua_setfield(L, -2, "stime");
lua_pushnumber(L, buf.tms_utime);
lua_setfield(L, -2, "utime");
return 1;
}
}
static int nixio_uname(lua_State *L) {
struct utsname buf;
if (uname(&buf)) {
return nixio__perror(L);
}
lua_createtable(L, 0, 5);
lua_pushstring(L, buf.machine);
lua_setfield(L, -2, "machine");
lua_pushstring(L, buf.version);
lua_setfield(L, -2, "version");
lua_pushstring(L, buf.release);
lua_setfield(L, -2, "release");
lua_pushstring(L, buf.nodename);
lua_setfield(L, -2, "nodename");
lua_pushstring(L, buf.sysname);
lua_setfield(L, -2, "sysname");
return 1;
}
#endif /* !__WINNT__ */
static int nixio_chdir(lua_State *L) {
return nixio__pstatus(L, !chdir(luaL_checkstring(L, 1)));
}
static int nixio_signal(lua_State *L) {
int sig = luaL_checkinteger(L, 1);
const char *val = luaL_checkstring(L, 2);
if (!strcmp(val, "ign") || !strcmp(val, "ignore")) {
return nixio__pstatus(L, signal(sig, SIG_IGN) != SIG_ERR);
} else if (!strcmp(val, "dfl") || !strcmp(val, "default")) {
return nixio__pstatus(L, signal(sig, SIG_DFL) != SIG_ERR);
} else {
return luaL_argerror(L, 2, "supported values: ign, dfl");
}
}
static int nixio_getpid(lua_State *L) {
@ -106,94 +291,157 @@ static int nixio_getpid(lua_State *L) {
return 1;
}
static int nixio_getppid(lua_State *L) {
lua_pushinteger(L, getppid());
return 1;
}
static int nixio_getuid(lua_State *L) {
lua_pushinteger(L, getuid());
return 1;
}
static int nixio_getgid(lua_State *L) {
lua_pushinteger(L, getgid());
return 1;
}
static int nixio_setgid(lua_State *L) {
gid_t gid;
if (lua_isstring(L, 1)) {
struct group *g = getgrnam(lua_tostring(L, 1));
gid = (!g) ? -1 : g->gr_gid;
} else if (lua_isnumber(L, 1)) {
gid = lua_tointeger(L, 1);
static int nixio_getenv(lua_State *L) {
const char *key = luaL_optstring(L, 1, NULL);
if (key) {
const char *val = getenv(key);
if (val) {
lua_pushstring(L, val);
} else {
lua_pushnil(L);
}
} else {
return luaL_argerror(L, 1, "supported values: <groupname>, <gid>");
lua_newtable(L);
extern char **environ;
for (char **c = environ; *c; c++) {
const char *delim = strchr(*c, '=');
if (!delim) {
return luaL_error(L, "invalid environment");
}
lua_pushlstring(L, *c, delim-*c);
lua_pushstring(L, delim + 1);
lua_rawset(L, -3);
}
}
return nixio__pstatus(L, !setgid(gid));
return 1;
}
static int nixio_setuid(lua_State *L) {
uid_t uid;
if (lua_isstring(L, 1)) {
struct passwd *p = getpwnam(lua_tostring(L, 1));
uid = (!p) ? -1 : p->pw_uid;
} else if (lua_isnumber(L, 1)) {
uid = lua_tointeger(L, 1);
} else {
return luaL_argerror(L, 1, "supported values: <username>, <uid>");
}
return nixio__pstatus(L, !setuid(uid));
static int nixio_setenv(lua_State *L) {
const char *key = luaL_checkstring(L, 1);
const char *val = luaL_optstring(L, 2, NULL);
return nixio__pstatus(L, (val) ? !setenv(key, val, 1) : !unsetenv(key));
}
static int nixio_nice(lua_State *L) {
int nval = luaL_checkint(L, 1);
static int nixio_exec(lua_State *L) {
return nixio__exec(L, NIXIO_EXECV);
}
errno = 0;
nval = nice(nval);
static int nixio_execp(lua_State *L) {
return nixio__exec(L, NIXIO_EXECVP);
}
if (nval == -1 && errno) {
return nixio__perror(L);
} else {
lua_pushinteger(L, nval);
static int nixio_exece(lua_State *L) {
return nixio__exec(L, NIXIO_EXECVE);
}
static int nixio_getcwd(lua_State *L) {
char path[PATH_MAX];
if (getcwd(path, sizeof(path))) {
lua_pushstring(L, path);
return 1;
}
}
static int nixio_setsid(lua_State *L) {
pid_t pid = setsid();
if (pid == -1) {
return nixio__perror(L);
} else {
lua_pushinteger(L, pid);
return 1;
return nixio__perror(L);
}
}
static int nixio_chdir(lua_State *L) {
return nixio__pstatus(L, !chdir(luaL_checkstring(L, 1)));
static int nixio_umask(lua_State *L) {
char mask[9];
lua_pushinteger(L,
nixio__mode_write(umask(nixio__check_mode(L, 1, -1)), mask));
lua_pushlstring(L, mask, 9);
return 2;
}
#ifdef __linux__
#include <sys/sysinfo.h>
static int nixio_sysinfo(lua_State *L) {
struct sysinfo info;
if (sysinfo(&info)) {
return nixio__perror(L);
}
lua_createtable(L, 0, 12);
lua_pushnumber(L, info.bufferram);
lua_setfield(L, -2, "bufferram");
lua_pushnumber(L, info.freehigh);
lua_setfield(L, -2, "freehigh");
lua_pushnumber(L, info.freeram);
lua_setfield(L, -2, "freeram");
lua_pushnumber(L, info.freeswap);
lua_setfield(L, -2, "freeswap");
lua_createtable(L, 0, 3);
for (int i=0; i<3; i++) {
lua_pushnumber(L, info.loads[i] / 65536.);
lua_rawseti(L, -2, i+1);
}
lua_setfield(L, -2, "loads");
lua_pushnumber(L, info.mem_unit);
lua_setfield(L, -2, "mem_unit");
lua_pushnumber(L, info.procs);
lua_setfield(L, -2, "procs");
lua_pushnumber(L, info.sharedram);
lua_setfield(L, -2, "sharedram");
lua_pushnumber(L, info.totalhigh);
lua_setfield(L, -2, "totalhigh");
lua_pushnumber(L, info.totalram);
lua_setfield(L, -2, "totalram");
lua_pushnumber(L, info.totalswap);
lua_setfield(L, -2, "totalswap");
lua_pushnumber(L, info.uptime);
lua_setfield(L, -2, "uptime");
return 1;
}
#endif
/* module table */
static const luaL_reg R[] = {
#ifdef __linux__
{"sysinfo", nixio_sysinfo},
#endif
#ifndef __WINNT__
{"fork", nixio_fork},
{"wait", nixio_wait},
{"kill", nixio_kill},
{"nice", nixio_nice},
{"chdir", nixio_chdir},
{"getpid", nixio_getpid},
{"getppid", nixio_getppid},
{"getuid", nixio_getuid},
{"getgid", nixio_getgid},
{"setuid", nixio_setuid},
{"setgid", nixio_setgid},
{"setsid", nixio_setsid},
{"wait", nixio_wait},
{"waitpid", nixio_wait},
{"times", nixio_times},
{"uname", nixio_uname},
#endif
{"chdir", nixio_chdir},
{"signal", nixio_signal},
{"getpid", nixio_getpid},
{"getenv", nixio_getenv},
{"setenv", nixio_setenv},
{"putenv", nixio_setenv},
{"exec", nixio_exec},
{"execp", nixio_execp},
{"exece", nixio_exece},
{"getcwd", nixio_getcwd},
{"umask", nixio_umask},
{NULL, NULL}
};

17
libs/nixio/src/socket.c
View file

@ -17,12 +17,9 @@
*/
#include "nixio.h"
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "nixio.h"
/**
@ -79,7 +76,7 @@ static int nixio_socket(lua_State *L) {
sock->fd = socket(sock->domain, sock->type, sock->protocol);
if (sock->fd < 0) {
return nixio__perror(L);
return nixio__perror_s(L);
}
return 1;
@ -95,10 +92,14 @@ static int nixio_sock_close(lua_State *L) {
sock->fd = -1;
do {
#ifndef __WINNT__
res = close(sockfd);
#else
res = closesocket(sockfd);
#endif
} while (res == -1 && errno == EINTR);
return nixio__pstatus(L, !res);
return nixio__pstatus_s(L, !res);
}
/**
@ -109,7 +110,11 @@ static int nixio_sock__gc(lua_State *L) {
int res;
if (sock && sock->fd != -1) {
do {
#ifndef __WINNT__
res = close(sock->fd);
#else
res = closesocket(sock->fd);
#endif
} while (res == -1 && errno == EINTR);
}
return 0;
@ -141,7 +146,7 @@ static int nixio_sock_shutdown(lua_State *L) {
return luaL_argerror(L, 2, "supported values: both, read, write");
}
return nixio__pstatus(L, !shutdown(sockfd, how));
return nixio__pstatus_s(L, !shutdown(sockfd, how));
}
/* module table */

192
libs/nixio/src/sockopt.c
View file

@ -17,17 +17,25 @@
*/
#include "nixio.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <net/if.h>
#include <sys/time.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include "nixio.h"
#ifndef IPV6_ADD_MEMBERSHIP
#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
#endif
#ifndef IPV6_DROP_MEMBERSHIP
#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
#endif
static int nixio_sock_fileno(lua_State *L) {
lua_pushinteger(L, nixio__checkfd(L, 1));
return 1;
}
/**
* setblocking()
@ -36,6 +44,9 @@ static int nixio_sock_setblocking(lua_State *L) {
int fd = nixio__checkfd(L, 1);
luaL_checkany(L, 2);
int set = lua_toboolean(L, 2);
#ifndef __WINNT__
int flags = fcntl(fd, F_GETFL);
if (flags == -1) {
@ -49,50 +60,64 @@ static int nixio_sock_setblocking(lua_State *L) {
}
return nixio__pstatus(L, !fcntl(fd, F_SETFL, flags));
#else /* __WINNT__ */
lua_getmetatable(L, 1);
luaL_getmetatable(L, NIXIO_META);
if (lua_equal(L, -1, -2)) { /* Socket */
unsigned long val = !set;
return nixio__pstatus_s(L, !ioctlsocket(fd, FIONBIO, &val));
} else { /* File */
WSASetLastError(WSAENOTSOCK);
return nixio__perror_s(L);
}
#endif /* __WINNT__ */
}
static int nixio__gso_int(lua_State *L, int fd, int level, int opt, int set) {
int value;
socklen_t optlen = sizeof(value);
if (!set) {
if (!getsockopt(fd, level, opt, &value, &optlen)) {
if (!getsockopt(fd, level, opt, (char *)&value, &optlen)) {
lua_pushinteger(L, value);
return 1;
}
} else {
value = luaL_checkinteger(L, set);
if (!setsockopt(fd, level, opt, &value, optlen)) {
if (!setsockopt(fd, level, opt, (char *)&value, optlen)) {
lua_pushboolean(L, 1);
return 1;
}
}
return nixio__perror(L);
return nixio__perror_s(L);
}
static int nixio__gso_ling(lua_State *L, int fd, int level, int opt, int set) {
struct linger value;
socklen_t optlen = sizeof(value);
if (!set) {
if (!getsockopt(fd, level, opt, &value, &optlen)) {
if (!getsockopt(fd, level, opt, (char *)&value, &optlen)) {
lua_pushinteger(L, value.l_onoff ? value.l_linger : 0);
return 1;
}
} else {
value.l_linger = luaL_checkinteger(L, set);
value.l_onoff = value.l_linger ? 1 : 0;
if (!setsockopt(fd, level, opt, &value, optlen)) {
if (!setsockopt(fd, level, opt, (char *)&value, optlen)) {
lua_pushboolean(L, 1);
return 1;
}
}
return nixio__perror(L);
return nixio__perror_s(L);
}
static int nixio__gso_timev(lua_State *L, int fd, int level, int opt, int set) {
struct timeval value;
socklen_t optlen = sizeof(value);
if (!set) {
if (!getsockopt(fd, level, opt, &value, &optlen)) {
if (!getsockopt(fd, level, opt, (char *)&value, &optlen)) {
lua_pushinteger(L, value.tv_sec);
lua_pushinteger(L, value.tv_usec);
return 2;
@ -100,12 +125,12 @@ static int nixio__gso_timev(lua_State *L, int fd, int level, int opt, int set) {
} else {
value.tv_sec = luaL_checkinteger(L, set);
value.tv_usec = luaL_optinteger(L, set + 1, 0);
if (!setsockopt(fd, level, opt, &value, optlen)) {
if (!setsockopt(fd, level, opt, (char *)&value, optlen)) {
lua_pushboolean(L, 1);
return 1;
}
}
return nixio__perror(L);
return nixio__perror_s(L);
}
#ifdef SO_BINDTODEVICE
@ -114,7 +139,7 @@ static int nixio__gso_b(lua_State *L, int fd, int level, int opt, int set) {
if (!set) {
socklen_t optlen = IFNAMSIZ;
char ifname[IFNAMSIZ];
if (!getsockopt(fd, level, opt, ifname, &optlen)) {
if (!getsockopt(fd, level, opt, (char *)ifname, &optlen)) {
lua_pushlstring(L, ifname, optlen);
return 1;
}
@ -122,16 +147,76 @@ static int nixio__gso_b(lua_State *L, int fd, int level, int opt, int set) {
size_t valuelen;
const char *value = luaL_checklstring(L, set, &valuelen);
luaL_argcheck(L, valuelen <= IFNAMSIZ, set, "invalid interface name");
if (!setsockopt(fd, level, opt, value, valuelen)) {
if (!setsockopt(fd, level, opt, (char *)value, valuelen)) {
lua_pushboolean(L, 1);
return 1;
}
}
return nixio__perror(L);
return nixio__perror_s(L);
}
#endif /* SO_BINDTODEVICE */
static int nixio__gso_mreq4(lua_State *L, int fd, int level, int opt, int set) {
struct ip_mreq value;
socklen_t optlen = sizeof(value);
if (!set) {
char buf[INET_ADDRSTRLEN];
if (!getsockopt(fd, level, opt, (char *)&value, &optlen)) {
if (!inet_ntop(AF_INET, &value.imr_multiaddr, buf, sizeof(buf))) {
return nixio__perror_s(L);
}
lua_pushstring(L, buf);
if (!inet_ntop(AF_INET, &value.imr_interface, buf, sizeof(buf))) {
return nixio__perror_s(L);
}
lua_pushstring(L, buf);
return 2;
}
} else {
const char *maddr = luaL_checkstring(L, set);
const char *iface = luaL_optstring(L, set + 1, "0.0.0.0");
if (inet_pton(AF_INET, maddr, &value.imr_multiaddr) < 1) {
return nixio__perror_s(L);
}
if (inet_pton(AF_INET, iface, &value.imr_interface) < 1) {
return nixio__perror_s(L);
}
if (!setsockopt(fd, level, opt, (char *)&value, optlen)) {
lua_pushboolean(L, 1);
return 1;
}
}
return nixio__perror_s(L);
}
static int nixio__gso_mreq6(lua_State *L, int fd, int level, int opt, int set) {
struct ipv6_mreq val;
socklen_t optlen = sizeof(val);
if (!set) {
char buf[INET_ADDRSTRLEN];
if (!getsockopt(fd, level, opt, (char *)&val, &optlen)) {
if (!inet_ntop(AF_INET6, &val.ipv6mr_multiaddr, buf, sizeof(buf))) {
return nixio__perror_s(L);
}
lua_pushstring(L, buf);
lua_pushnumber(L, val.ipv6mr_interface);
return 2;
}
} else {
const char *maddr = luaL_checkstring(L, set);
if (inet_pton(AF_INET6, maddr, &val.ipv6mr_multiaddr) < 1) {
return nixio__perror_s(L);
}
val.ipv6mr_interface = luaL_optlong(L, set + 1, 0);
if (!setsockopt(fd, level, opt, (char *)&val, optlen)) {
lua_pushboolean(L, 1);
return 1;
}
}
return nixio__perror_s(L);
}
/**
* get/setsockopt() helper
*/
@ -183,9 +268,6 @@ static int nixio__getsetsockopt(lua_State *L, int set) {
);
}
} else if (!strcmp(level, "tcp")) {
if (sock->type != SOCK_STREAM) {
return luaL_error(L, "not a TCP socket");
}
if (!strcmp(option, "cork")) {
#ifdef TCP_CORK
return nixio__gso_int(L, sock->fd, IPPROTO_TCP, TCP_CORK, set);
@ -197,8 +279,71 @@ static int nixio__getsetsockopt(lua_State *L, int set) {
} else {
return luaL_argerror(L, 3, "supported values: cork, nodelay");
}
} else if (!strcmp(level, "ip")) {
if (!strcmp(option, "mtu")) {
#ifdef IP_MTU
return nixio__gso_int(L, sock->fd, IPPROTO_IP, IP_MTU, set);
#else
return nixio__pstatus(L, !(errno = ENOPROTOOPT));
#endif
} else if (!strcmp(option, "hdrincl")) {
return nixio__gso_int(L, sock->fd, IPPROTO_IP, IP_HDRINCL,
set);
} else if (!strcmp(option, "multicast_loop")) {
return nixio__gso_int(L, sock->fd, IPPROTO_IP, IP_MULTICAST_LOOP,
set);
} else if (!strcmp(option, "multicast_ttl")) {
return nixio__gso_int(L, sock->fd, IPPROTO_IP, IP_MULTICAST_TTL,
set);
} else if (!strcmp(option, "multicast_if")) {
return nixio__gso_mreq4(L, sock->fd, IPPROTO_IP, IP_MULTICAST_IF,
set);
} else if (!strcmp(option, "add_membership")) {
return nixio__gso_mreq4(L, sock->fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
set);
} else if (!strcmp(option, "drop_membership")) {
return nixio__gso_mreq4(L, sock->fd, IPPROTO_IP, IP_DROP_MEMBERSHIP,
set);
} else {
return luaL_argerror(L, 3,
"supported values: hdrincl, mtu, multicast_loop, "
"multicast_ttl, multicast_if, add_membership, drop_membership");
}
} else if (!strcmp(level, "ipv6")) {
if (!strcmp(option, "mtu")) {
#ifdef IPV6_MTU
return nixio__gso_int(L, sock->fd, IPPROTO_IPV6, IPV6_MTU, set);
#else
return nixio__pstatus(L, !(errno = ENOPROTOOPT));
#endif
} else if (!strcmp(option, "v6only")) {
#ifdef IPV6_V6ONLY
return nixio__gso_int(L, sock->fd, IPPROTO_IPV6, IPV6_V6ONLY, set);
#else
return nixio__pstatus(L, !(errno = ENOPROTOOPT));
#endif
} else if (!strcmp(option, "multicast_loop")) {
return nixio__gso_int(L, sock->fd, IPPROTO_IPV6,
IPV6_MULTICAST_LOOP, set);
} else if (!strcmp(option, "multicast_hops")) {
return nixio__gso_int(L, sock->fd, IPPROTO_IPV6,
IPV6_MULTICAST_HOPS, set);
} else if (!strcmp(option, "multicast_if")) {
return nixio__gso_mreq6(L, sock->fd, IPPROTO_IPV6,
IPV6_MULTICAST_IF, set);
} else if (!strcmp(option, "add_membership")) {
return nixio__gso_mreq6(L, sock->fd, IPPROTO_IPV6,
IPV6_ADD_MEMBERSHIP, set);
} else if (!strcmp(option, "drop_membership")) {
return nixio__gso_mreq6(L, sock->fd, IPPROTO_IPV6,
IPV6_DROP_MEMBERSHIP, set);
} else {
return luaL_argerror(L, 3,
"supported values: v6only, mtu, multicast_loop, multicast_hops,"
" multicast_if, add_membership, drop_membership");
}
} else {
return luaL_argerror(L, 2, "supported values: socket, tcp");
return luaL_argerror(L, 2, "supported values: socket, tcp, ip, ipv6");
}
}
@ -221,6 +366,9 @@ static const luaL_reg M[] = {
{"setblocking", nixio_sock_setblocking},
{"getsockopt", nixio_sock_getsockopt},
{"setsockopt", nixio_sock_setsockopt},
{"getopt", nixio_sock_getsockopt},
{"setopt", nixio_sock_setsockopt},
{"fileno", nixio_sock_fileno},
{NULL, NULL}
};
@ -232,5 +380,7 @@ void nixio_open_sockopt(lua_State *L) {
luaL_getmetatable(L, NIXIO_FILE_META);
lua_pushcfunction(L, nixio_sock_setblocking);
lua_setfield(L, -2, "setblocking");
lua_pushcfunction(L, nixio_sock_fileno);
lua_setfield(L, -2, "fileno");
lua_pop(L, 1);
}

11
libs/nixio/src/splice.c
View file

@ -27,6 +27,9 @@
#include <unistd.h>
#include <sys/param.h>
#ifndef __WINNT__
#ifndef BSD
#include <sys/sendfile.h>
#else
@ -150,6 +153,14 @@ static const luaL_reg R[] = {
{NULL, NULL}
};
void nixio_open_splice(lua_State *L) {
luaL_register(L, NULL, R);
}
#else /* __WINNT__ */
void nixio_open_splice(lua_State *L) {
}
#endif /* !__WINNT__ */

15
libs/nixio/src/syslog.c
View file

@ -18,6 +18,8 @@
#include "nixio.h"
#include <string.h>
#ifndef __WINNT__
#include <syslog.h>
@ -57,7 +59,7 @@ static int nixio_closelog(lua_State *L) {
return 0;
}
static int nixio__syslogmasg(lua_State *L, int dolog) {
static int nixio__syslogmask(lua_State *L, int dolog) {
int priority;
const char *flag = luaL_checkstring(L, 1);
@ -92,11 +94,11 @@ static int nixio__syslogmasg(lua_State *L, int dolog) {
}
static int nixio_setlogmask(lua_State *L) {
return nixio__syslogmasg(L, 0);
return nixio__syslogmask(L, 0);
}
static int nixio_syslog(lua_State *L) {
return nixio__syslogmasg(L, 1);
return nixio__syslogmask(L, 1);
}
/* module table */
@ -111,3 +113,10 @@ static const luaL_reg R[] = {
void nixio_open_syslog(lua_State *L) {
luaL_register(L, NULL, R);
}
#else /* __WINNT__ */
void nixio_open_syslog(lua_State *L) {
}
#endif /* __WINNT__ */

188
libs/nixio/src/tls-crypto.c Normal file
View file

@ -0,0 +1,188 @@
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nixio-tls.h"
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
static char nixio__bin2hex[] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
static int nixio_crypto_hash__init(lua_State *L, int hmac) {
const char *type = luaL_checkstring(L, 1);
nixio_hash *hash = lua_newuserdata(L, sizeof(nixio_hash));
if (!strcmp(type, "md5")) {
hash->type = NIXIO_HASH_MD5;
hash->digest_size = MD5_DIGEST_LENGTH;
hash->block_size = 64;
hash->ctx = malloc(sizeof(MD5_CTX));
if (!hash->ctx) {
return luaL_error(L, NIXIO_OOM);
}
MD5_Init((MD5_CTX*)hash->ctx);
hash->init = (nixio_hash_initcb)MD5_Init;
hash->update = (nixio_hash_updatecb)MD5_Update;
hash->final = (nixio_hash_finalcb)MD5_Final;
} else if (!strcmp(type, "sha1")) {
hash->type = NIXIO_HASH_SHA1;
hash->digest_size = SHA_DIGEST_LENGTH;
hash->block_size = 64;
hash->ctx = malloc(sizeof(SHA_CTX));
if (!hash->ctx) {
return luaL_error(L, NIXIO_OOM);
}
SHA1_Init((SHA_CTX*)hash->ctx);
hash->init = (nixio_hash_initcb)SHA1_Init;
hash->update = (nixio_hash_updatecb)SHA1_Update;
hash->final = (nixio_hash_finalcb)SHA1_Final;
} else {
luaL_argerror(L, 1, "supported values: md5, sha1");
}
luaL_getmetatable(L, NIXIO_CRYPTO_HASH_META);
lua_setmetatable(L, -2);
if (hmac) {
const char *key = luaL_checklstring(L, 2, &hash->key_size);
if (hash->key_size > hash->block_size) {
hash->update(hash->ctx, key, hash->key_size);
hash->final(hash->digest, hash->ctx);
hash->init(hash->ctx);
hash->key_size = hash->digest_size;
memcpy(hash->key, hash->digest, hash->key_size);
} else {
memcpy(hash->key, key, hash->key_size);
}
unsigned char pad[NIXIO_CRYPTO_BLOCK_SIZE];
for (uint i = 0; i < hash->block_size; i++) {
pad[i] = (i < hash->key_size) ? (0x36 ^ hash->key[i]) : 0x36;
}
hash->update(hash->ctx, pad, hash->block_size);
hash->type |= NIXIO_HMAC_BIT;
}
return 1;
}
static int nixio_crypto_hash(lua_State *L) {
return nixio_crypto_hash__init(L, 0);
}
static int nixio_crypto_hmac(lua_State *L) {
return nixio_crypto_hash__init(L, 1);
}
static int nixio_crypto_hash_update(lua_State *L) {
nixio_hash *hash = luaL_checkudata(L, 1, NIXIO_CRYPTO_HASH_META);
if (hash->type) {
size_t len;
const char *chunk = luaL_checklstring(L, 2, &len);
hash->update(hash->ctx, chunk, len);
lua_pushvalue(L, 1);
return 1;
} else {
return luaL_error(L, "Tried to update finalized hash object.");
}
}
static int nixio_crypto_hash_final(lua_State *L) {
nixio_hash *hash = luaL_checkudata(L, 1, NIXIO_CRYPTO_HASH_META);
if (hash->type & NIXIO_HMAC_BIT) {
hash->final(hash->digest, hash->ctx);
hash->init(hash->ctx);
unsigned char pad[NIXIO_CRYPTO_BLOCK_SIZE];
for (uint i = 0; i < hash->block_size; i++) {
pad[i] = (i < hash->key_size) ? (0x5c ^ hash->key[i]) : 0x5c;
}
hash->update(hash->ctx, pad, hash->block_size);
hash->update(hash->ctx, hash->digest, hash->digest_size);
}
if (hash->type) {
hash->type = NIXIO_HASH_NONE;
hash->final(hash->digest, hash->ctx);
free(hash->ctx);
}
char hashdigest[NIXIO_DIGEST_SIZE*2];
for (uint i=0; i < hash->digest_size; i++) {
hashdigest[2*i] = nixio__bin2hex[(hash->digest[i] & 0xf0) >> 4];
hashdigest[2*i+1] = nixio__bin2hex[(hash->digest[i] & 0x0f)];
}
lua_pushlstring(L, hashdigest, hash->digest_size * 2);
memcpy(hashdigest, hash->digest, hash->digest_size);
lua_pushlstring(L, hashdigest, hash->digest_size);
return 2;
}
static int nixio_crypto_hash__gc(lua_State *L) {
nixio_hash *hash = luaL_checkudata(L, 1, NIXIO_CRYPTO_HASH_META);
if (hash->type) {
hash->final(hash->digest, hash->ctx);
free(hash->ctx);
hash->type = NIXIO_HASH_NONE;
}
return 0;
}
static int nixio_crypto_hash__tostring(lua_State *L) {
nixio_hash *hash = luaL_checkudata(L, 1, NIXIO_CRYPTO_HASH_META);
lua_pushfstring(L, "nixio hash object: %p", hash);
return 1;
}
/* module table */
static const luaL_reg R[] = {
{"hash", nixio_crypto_hash},
{"hmac", nixio_crypto_hmac},
{NULL, NULL}
};
/* hash table */
static const luaL_reg M[] = {
{"update", nixio_crypto_hash_update},
{"final", nixio_crypto_hash_final},
{"__gc", nixio_crypto_hash__gc},
{"__tostring", nixio_crypto_hash__tostring},
{NULL, NULL}
};
void nixio_open_tls_crypto(lua_State *L) {
luaL_newmetatable(L, NIXIO_CRYPTO_HASH_META);
luaL_register(L, NULL, M);
lua_pushvalue(L, -1);
lua_setfield(L, -2, "__index");
lua_pop(L, 1);
lua_newtable(L);
luaL_register(L, NULL, R);
lua_setfield(L, -2, "crypto");
}

22
libs/nixio/src/tls-socket.c
View file

@ -1,4 +1,4 @@
/*
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
@ -65,7 +65,7 @@ static SSL* nixio__checktlssock(lua_State *L) {
static int nixio_tls_sock_recv(lua_State *L) {
SSL *sock = nixio__checktlssock(L);
nixio_tls__check_connected(L);
int req = luaL_checkinteger(L, 2);
uint req = luaL_checkinteger(L, 2);
luaL_argcheck(L, req >= 0, 2, "out of range");
@ -172,6 +172,24 @@ static int nixio_tls_sock_send(lua_State *L) {
size_t len;
ssize_t sent;
const char *data = luaL_checklstring(L, 2, &len);
if (lua_gettop(L) > 2) {
int offset = luaL_optint(L, 3, 0);
if (offset) {
if (offset < len) {
data += offset;
len -= offset;
} else {
len = 0;
}
}
unsigned int wlen = luaL_optint(L, 4, len);
if (wlen < len) {
len = wlen;
}
}
sent = SSL_write(sock, data, len);
if (sent > 0) {
lua_pushinteger(L, sent);

257
libs/nixio/src/user.c Normal file
View file

@ -0,0 +1,257 @@
/*
* nixio - Linux I/O library for lua
*
* Copyright (C) 2009 Steven Barth <steven@midlink.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nixio.h"
#include <sys/types.h>
#include <errno.h>
#include <unistd.h>
#include <sys/param.h>
#ifndef __WINNT__
#include <grp.h>
#include <pwd.h>
#ifndef BSD
#include <shadow.h>
#include <crypt.h>
#endif
int nixio__check_group(lua_State *L, int idx) {
if (lua_isnumber(L, idx)) {
return lua_tointeger(L, idx);
} else if (lua_isstring(L, idx)) {
struct group *g = getgrnam(lua_tostring(L, idx));
return (!g) ? -1 : g->gr_gid;
} else {
return luaL_argerror(L, idx, "supported values: <groupname>, <gid>");
}
}
int nixio__check_user(lua_State *L, int idx) {
if (lua_isnumber(L, idx)) {
return lua_tointeger(L, idx);
} else if (lua_isstring(L, idx)) {
struct passwd *p = getpwnam(lua_tostring(L, idx));
return (!p) ? -1 : p->pw_uid;
} else {
return luaL_argerror(L, idx, "supported values: <username>, <uid>");
}
}
static int nixio__push_group(lua_State *L, struct group *gr) {
lua_createtable(L, 0, 4);
lua_pushstring(L, gr->gr_name);
lua_setfield(L, -2, "name");
lua_pushstring(L, gr->gr_passwd);
lua_setfield(L, -2, "passwd");
lua_pushinteger(L, gr->gr_gid);
lua_setfield(L, -2, "gid");
lua_newtable(L);
for (int i=0; gr->gr_mem[i]; i++) {
lua_pushstring(L, gr->gr_mem[i]);
lua_rawseti(L, -2, i+1);
}
lua_setfield(L, -2, "mem");
return 1;
}
static int nixio_getgr(lua_State *L) {
struct group *gr;
errno = 0;
if (lua_isnumber(L, 1)) {
gr = getgrgid(lua_tonumber(L, 1));
} else if (lua_isstring(L, 1)) {
gr = getgrnam(lua_tostring(L, 1));
} else if (lua_isnoneornil(L, 1)) {
lua_newtable(L);
int i = 0;
setgrent();
while ((gr = getgrent())) {
nixio__push_group(L, gr);
lua_rawseti(L, -2, ++i);
}
if (errno) {
return nixio__perror(L);
}
endgrent();
return 1;
} else {
return luaL_argerror(L, 1, "supported values: <groupname>, <gid>");
}
if (!gr) {
return nixio__perror(L);
} else {
return nixio__push_group(L, gr);
}
}
static int nixio__push_passwd(lua_State *L, struct passwd *pw) {
lua_createtable(L, 0, 7);
lua_pushstring(L, pw->pw_name);
lua_setfield(L, -2, "name");
lua_pushstring(L, pw->pw_passwd);
lua_setfield(L, -2, "passwd");
lua_pushinteger(L, pw->pw_gid);
lua_setfield(L, -2, "gid");
lua_pushinteger(L, pw->pw_uid);
lua_setfield(L, -2, "uid");
lua_pushstring(L, pw->pw_dir);
lua_setfield(L, -2, "dir");
lua_pushstring(L, pw->pw_gecos);
lua_setfield(L, -2, "gecos");
lua_pushstring(L, pw->pw_shell);
lua_setfield(L, -2, "shell");
return 1;
}
static int nixio_getpw(lua_State *L) {
struct passwd *pw;
errno = 0;
if (lua_isnumber(L, 1)) {
pw = getpwuid(lua_tonumber(L, 1));
} else if (lua_isstring(L, 1)) {
pw = getpwnam(lua_tostring(L, 1));
} else if (lua_isnoneornil(L, 1)) {
lua_newtable(L);
int i = 0;
setpwent();
while ((pw = getpwent())) {
nixio__push_passwd(L, pw);
lua_rawseti(L, -2, ++i);
}
if (errno) {
return nixio__perror(L);
}
endpwent();
return 1;
} else {
return luaL_argerror(L, 1, "supported values: <username>, <uid>");
}
if (!pw) {
return nixio__perror(L);
} else {
return nixio__push_passwd(L, pw);
}
}
#ifndef BSD
static int nixio__push_spwd(lua_State *L, struct spwd *sp) {
lua_createtable(L, 0, 9);
lua_pushstring(L, sp->sp_namp);
lua_setfield(L, -2, "namp");
lua_pushinteger(L, sp->sp_expire);
lua_setfield(L, -2, "expire");
lua_pushinteger(L, sp->sp_flag);
lua_setfield(L, -2, "flag");
lua_pushinteger(L, sp->sp_inact);
lua_setfield(L, -2, "inact");
lua_pushinteger(L, sp->sp_lstchg);
lua_setfield(L, -2, "lstchg");
lua_pushinteger(L, sp->sp_max);
lua_setfield(L, -2, "max");
lua_pushinteger(L, sp->sp_min);
lua_setfield(L, -2, "min");
lua_pushinteger(L, sp->sp_warn);
lua_setfield(L, -2, "warn");
lua_pushstring(L, sp->sp_pwdp);
lua_setfield(L, -2, "pwdp");
return 1;
}
static int nixio_getsp(lua_State *L) {
struct spwd *sp;
errno = 0;
if (lua_isstring(L, 1)) {
sp = getspnam(lua_tostring(L, 1));
} else if (lua_isnoneornil(L, 1)) {
lua_newtable(L);
int i = 0;
setspent();
while ((sp = getspent())) {
nixio__push_spwd(L, sp);
lua_rawseti(L, -2, ++i);
}
if (errno) {
return nixio__perror(L);
}
endspent();
return 1;
} else {
return luaL_argerror(L, 1, "supported values: <username>");
}
if (!sp) {
return nixio__perror(L);
} else {
return nixio__push_spwd(L, sp);
}
}
#endif /* !BSD */
static int nixio_crypt(lua_State *L) {
const char *key = luaL_checkstring(L, 1);
const char *salt = luaL_checkstring(L, 2);
const char *hash = crypt(key, salt);
if (hash) {
lua_pushstring(L, hash);
} else {
lua_pushnil(L);
}
return 1;
}
/* module table */
static const luaL_reg R[] = {
{"crypt", nixio_crypt},
{"getgr", nixio_getgr},
{"getpw", nixio_getpw},
#ifndef BSD
{"getsp", nixio_getsp},
#endif
{NULL, NULL}
};
#else /* __WINNT__ */
static const luaL_reg R[] = {
{NULL, NULL}
};
#endif
void nixio_open_user(lua_State *L) {
luaL_register(L, NULL, R);
}

56
libs/nixio/standalone.mk Normal file
View file

@ -0,0 +1,56 @@
LUAC = luac
LUAC_OPTIONS = -s
LUA_TARGET ?= source
LUA_MODULEDIR = /usr/local/share/lua/5.1
LUA_LIBRARYDIR = /usr/local/lib/lua/5.1
OS ?= $(shell uname)
LUA_SHLIBS = $(shell pkg-config --silence-errors --libs lua5.1 || pkg-config --silence-errors --libs lua-5.1 || pkg-config --silence-errors --libs lua)
LUA_LIBS = $(if $(LUA_SHLIBS),$(LUA_SHLIBS),$(firstword $(wildcard /usr/lib/liblua.a /usr/local/lib/liblua.a /opt/local/lib/liblua.a)))
LUA_CFLAGS = $(shell pkg-config --silence-errors --cflags lua5.1 || pkg-config --silence-errors --cflags lua-5.1 || pkg-config --silence-errors --cflags lua)
CC = gcc
AR = ar
RANLIB = ranlib
CFLAGS = -O2
FPIC = -fPIC
EXTRA_CFLAGS = --std=gnu99
WFLAGS = -Wall -Werror -pedantic
CPPFLAGS =
COMPILE = $(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) $(WFLAGS)
ifeq ($(OS),Darwin)
SHLIB_FLAGS = -bundle -undefined dynamic_lookup
else
SHLIB_FLAGS = -shared
endif
LINK = $(CC) $(LDFLAGS)
.PHONY: all build compile luacompile luasource clean luaclean
all: build
build: luabuild gccbuild
luabuild: lua$(LUA_TARGET)
gccbuild: compile
compile:
clean: luaclean
luasource:
mkdir -p dist$(LUA_MODULEDIR)
cp -pR root/* dist 2>/dev/null || true
cp -pR lua/* dist$(LUA_MODULEDIR) 2>/dev/null || true
for i in $$(find dist -name .svn); do rm -rf $$i || true; done
luastrip: luasource
for i in $$(find dist -type f -name '*.lua'); do perl -e 'undef $$/; open( F, "< $$ARGV[0]" ) || die $$!; $$src = <F>; close F; $$src =~ s/--\[\[.*?\]\](--)?//gs; $$src =~ s/^\s*--.*?\n//gm; open( F, "> $$ARGV[0]" ) || die $$!; print F $$src; close F' $$i; done
luacompile: luasource
for i in $$(find dist -name *.lua -not -name debug.lua); do $(LUAC) $(LUAC_OPTIONS) -o $$i $$i; done
luaclean:
rm -rf dist