libiwinfo: reimplement iwinfo.lua in C and package it as "iwinfo"

This commit is contained in:
Jo-Philipp Wich 2011-12-03 00:22:25 +00:00
parent c3c574d8c9
commit 486770051b
4 changed files with 724 additions and 233 deletions

View file

@ -7,7 +7,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=libiwinfo
PKG_RELEASE:=17
PKG_RELEASE:=18
PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
@ -26,6 +26,7 @@ define Package/libiwinfo/description
madwifi, nl80211 and wext driver interfaces.
endef
define Package/libiwinfo-lua
SUBMENU:=Lua
SECTION:=lang
@ -39,6 +40,19 @@ define Package/libiwinfo-lua/description
backends.
endef
define Package/iwinfo
SECTION:=utils
CATEGORY:=Utilities
TITLE:=Generalized Wireless Information utility
DEPENDS:=+libiwinfo
endef
define Package/iwinfo/description
Command line frontend for the wireless information library.
endef
define Build/Prepare
mkdir -p $(PKG_BUILD_DIR)
$(CP) ./src/* $(PKG_BUILD_DIR)/
@ -81,11 +95,15 @@ define Package/libiwinfo/install
endef
define Package/libiwinfo-lua/install
$(INSTALL_DIR) $(1)/usr/bin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/iwinfo.lua $(1)/usr/bin/iwinfo
$(INSTALL_DIR) $(1)/usr/lib/lua
$(INSTALL_BIN) $(PKG_BUILD_DIR)/iwinfo.so $(1)/usr/lib/lua/iwinfo.so
endef
define Package/iwinfo/install
$(INSTALL_DIR) $(1)/usr/bin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/iwinfo $(1)/usr/bin/iwinfo
endef
$(eval $(call BuildPackage,libiwinfo))
$(eval $(call BuildPackage,libiwinfo-lua))
$(eval $(call BuildPackage,iwinfo))

View file

@ -1,37 +1,44 @@
IWINFO_BACKENDS = $(BACKENDS)
IWINFO_CFLAGS = $(CFLAGS) -std=gnu99 -fstrict-aliasing -Iinclude
IWINFO_LDFLAGS = $(LDFLAGS) -shared
IWINFO_SO = libiwinfo.so
IWINFO_OBJ = iwinfo_utils.o iwinfo_wext.o iwinfo_wext_scan.o iwinfo_lib.o
IWINFO_LIB = libiwinfo.so
IWINFO_LIB_LDFLAGS = $(LDFLAGS) -shared
IWINFO_LIB_OBJ = iwinfo_utils.o iwinfo_wext.o iwinfo_wext_scan.o iwinfo_lib.o
IWINFO_LUA = iwinfo.so
IWINFO_LUA_LDFLAGS = $(LDFLAGS) -shared -L. -liwinfo -llua
IWINFO_LUA_SO = iwinfo.so
IWINFO_LUA_OBJ = iwinfo_lua.o
IWINFO_CLI = iwinfo
IWINFO_CLI_LDFLAGS = $(LDFLAGS) -L. -liwinfo
IWINFO_CLI_OBJ = iwinfo_cli.o
ifneq ($(filter wl,$(IWINFO_BACKENDS)),)
IWINFO_CFLAGS += -DUSE_WL
IWINFO_OBJ += iwinfo_wl.o
IWINFO_LIB_OBJ += iwinfo_wl.o
endif
ifneq ($(filter madwifi,$(IWINFO_BACKENDS)),)
IWINFO_CFLAGS += -DUSE_MADWIFI
IWINFO_OBJ += iwinfo_madwifi.o
IWINFO_LIB_OBJ += iwinfo_madwifi.o
endif
ifneq ($(filter nl80211,$(IWINFO_BACKENDS)),)
IWINFO_CFLAGS += -DUSE_NL80211
IWINFO_LDFLAGS += -lnl-tiny
IWINFO_OBJ += iwinfo_nl80211.o
IWINFO_CFLAGS += -DUSE_NL80211
IWINFO_CLI_LDFLAGS += -lnl-tiny
IWINFO_LIB_LDFLAGS += -lnl-tiny
IWINFO_LIB_OBJ += iwinfo_nl80211.o
endif
%.o: %.c
$(CC) $(IWINFO_CFLAGS) $(FPIC) -c -o $@ $<
compile: clean $(IWINFO_OBJ) $(IWINFO_LUA_OBJ)
$(LD) $(IWINFO_LDFLAGS) -o $(IWINFO_SO) $(IWINFO_OBJ)
$(LD) $(IWINFO_LUA_LDFLAGS) -o $(IWINFO_LUA_SO) $(IWINFO_LUA_OBJ)
compile: clean $(IWINFO_LIB_OBJ) $(IWINFO_LUA_OBJ) $(IWINFO_CLI_OBJ)
$(CC) $(IWINFO_LIB_LDFLAGS) -o $(IWINFO_LIB) $(IWINFO_LIB_OBJ)
$(CC) $(IWINFO_LUA_LDFLAGS) -o $(IWINFO_LUA) $(IWINFO_LUA_OBJ)
$(CC) $(IWINFO_CLI_LDFLAGS) -o $(IWINFO_CLI) $(IWINFO_CLI_OBJ)
clean:
rm -f *.o $(IWINFO_SO) $(IWINFO_LUA_SO)
rm -f *.o $(IWINFO_LIB) $(IWINFO_LUA) $(IWINFO_CLI)

View file

@ -1,217 +0,0 @@
#!/usr/bin/lua
require "iwinfo"
function printf(fmt, ...)
print(string.format(fmt, ...))
end
function s(x)
if x == nil then
return "?"
else
return tostring(x)
end
end
function n(x)
if x == nil then
return 0
else
return tonumber(x)
end
end
function print_info(api, dev)
local iw = iwinfo[api]
local enc = iw.encryption(dev)
local function hwmode()
local m = iw.hwmodelist(dev)
if m then
local s = "802.11"
if m.a then s = s.."a" end
if m.b then s = s.."b" end
if m.g then s = s.."g" end
if m.n then s = s.."n" end
return s
else
return "?"
end
end
printf("%-9s ESSID: \"%s\"",
dev, s(iw.ssid(dev)))
printf(" Access Point: %s",
s(iw.bssid(dev)))
printf(" Type: %s HW Mode(s): %s",
api, hwmode())
printf(" Mode: %s Channel: %d (%.3f GHz)",
s(iw.mode(dev)), n(iw.channel(dev)), n(iw.frequency(dev)) / 1000)
printf(" Tx-Power: %s dBm Link Quality: %s/%s",
s(iw.txpower(dev)), s(iw.quality(dev)), s(iw.quality_max(dev)))
printf(" Signal: %s dBm Noise: %s dBm",
s(iw.signal(dev)), s(iw.noise(dev)))
printf(" Bit Rate: %.1f MBit/s",
n(iw.bitrate(dev)) / 1000)
printf(" Encryption: %s",
s(enc and enc.description or "None"))
printf(" Supports VAPs: %s",
iw.mbssid_support(dev) and "yes" or "no")
print("")
end
function print_scan(api, dev)
local iw = iwinfo[api]
local sr = iw.scanlist(dev)
local si, se
if sr and #sr > 0 then
for si, se in ipairs(sr) do
printf("Cell %02d - Address: %s", si, se.bssid)
printf(" ESSID: \"%s\"",
s(se.ssid))
printf(" Mode: %s Channel: %d",
s(se.mode), n(se.channel))
printf(" Signal: %s dBm Quality: %d/%d",
s(se.signal), n(se.quality), n(se.quality_max))
printf(" Encryption: %s",
s(se.encryption.description or "None"))
print("")
end
else
print("No scan results or scanning not possible")
print("")
end
end
function print_txpwrlist(api, dev)
local iw = iwinfo[api]
local pl = iw.txpwrlist(dev)
local cp = n(iw.txpower(dev))
local pe
if pl and #pl > 0 then
for _, pe in ipairs(pl) do
printf("%s%3d dBm (%4d mW)",
(cp == pe.dbm) and "*" or " ",
n(pe.dbm), n(pe.mw))
end
else
print("No TX power information available")
end
print("")
end
function print_freqlist(api, dev)
local iw = iwinfo[api]
local fl = iw.freqlist(dev)
local cc = n(iw.channel(dev))
local fe
if fl and #fl > 0 then
for _, fe in ipairs(fl) do
printf("%s %.3f GHz (Channel %d)%s",
(cc == fe.channel) and "*" or " ",
n(fe.mhz) / 1000, n(fe.channel),
fe.restricted and " [restricted]" or "")
end
else
print("No frequency information available")
end
print("")
end
function print_assoclist(api, dev)
local iw = iwinfo[api]
local al = iw.assoclist(dev)
local ns = iw.noise(dev)
local ai, ae
if al and next(al) then
for ai, ae in pairs(al) do
printf("%s %s dBm / %d dBm (SNR %d)",
ai, s(ae.signal), ns, n(ae.signal) - ns)
end
else
print("No client connected or no information available")
end
print("")
end
function print_countrylist(api, dev)
local iw = iwinfo[api]
local cl = iw.countrylist(dev)
local cc = iw.country(dev)
local ce
if cl and #cl > 0 then
for _, ce in ipairs(cl) do
printf("%s %4s %s",
(cc == ce.alpha2) and "*" or " ",
ce.ccode, ce.name)
end
else
print("No country code information available")
end
print("")
end
if #arg ~= 2 then
print("Usage:")
print(" iwinfo <device> info")
print(" iwinfo <device> scan")
print(" iwinfo <device> txpowerlist")
print(" iwinfo <device> freqlist")
print(" iwinfo <device> assoclist")
print(" iwinfo <device> countrylist")
os.exit(1)
end
local dev = arg[1]
local api = iwinfo.type(dev)
if not api then
print("No such wireless device: " .. dev)
os.exit(1)
end
if arg[2]:match("^i") then
print_info(api, dev)
elseif arg[2]:match("^s") then
print_scan(api, dev)
elseif arg[2]:match("^t") then
print_txpwrlist(api, dev)
elseif arg[2]:match("^f") then
print_freqlist(api, dev)
elseif arg[2]:match("^a") then
print_assoclist(api, dev)
elseif arg[2]:match("^c") then
print_countrylist(api, dev)
else
print("Unknown command: " .. arg[2])
end

View file

@ -0,0 +1,683 @@
/*
* iwinfo - Wireless Information Library - Command line frontend
*
* Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
*
* The iwinfo library is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* The iwinfo library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with the iwinfo library. If not, see http://www.gnu.org/licenses/.
*/
#include <stdio.h>
#include "iwinfo.h"
static char * format_bssid(unsigned char *mac)
{
static char buf[18];
snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
return buf;
}
static char * format_ssid(char *ssid)
{
static char buf[IWINFO_ESSID_MAX_SIZE+3];
if (ssid && ssid[0])
snprintf(buf, sizeof(buf), "\"%s\"", ssid);
else
snprintf(buf, sizeof(buf), "unknown");
return buf;
}
static char * format_channel(int ch)
{
static char buf[8];
if (ch <= 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%d", ch);
return buf;
}
static char * format_frequency(int freq)
{
static char buf[10];
if (freq <= 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
return buf;
}
static char * format_txpower(int pwr)
{
static char buf[10];
if (pwr < 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%d dBm", pwr);
return buf;
}
static char * format_quality(int qual)
{
static char buf[8];
if (qual < 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%d", qual);
return buf;
}
static char * format_quality_max(int qmax)
{
static char buf[8];
if (qmax < 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%d", qmax);
return buf;
}
static char * format_signal(int sig)
{
static char buf[10];
if (!sig)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%d dBm", sig);
return buf;
}
static char * format_noise(int noise)
{
static char buf[10];
if (!noise)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%d dBm", noise);
return buf;
}
static char * format_rate(int rate)
{
static char buf[14];
if (rate <= 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "%.1f MBit/s", ((float)rate / 1000.0));
return buf;
}
static char * format_enc_ciphers(int ciphers)
{
static char str[128] = { 0 };
char *pos = str;
if (ciphers & IWINFO_CIPHER_WEP40)
pos += sprintf(pos, "WEP-40, ");
if (ciphers & IWINFO_CIPHER_WEP104)
pos += sprintf(pos, "WEP-104, ");
if (ciphers & IWINFO_CIPHER_TKIP)
pos += sprintf(pos, "TKIP, ");
if (ciphers & IWINFO_CIPHER_CCMP)
pos += sprintf(pos, "CCMP, ");
if (ciphers & IWINFO_CIPHER_WRAP)
pos += sprintf(pos, "WRAP, ");
if (ciphers & IWINFO_CIPHER_AESOCB)
pos += sprintf(pos, "AES-OCB, ");
if (ciphers & IWINFO_CIPHER_CKIP)
pos += sprintf(pos, "CKIP, ");
if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
pos += sprintf(pos, "NONE, ");
*(pos - 2) = 0;
return str;
}
static char * format_enc_suites(int suites)
{
static char str[64] = { 0 };
char *pos = str;
if (suites & IWINFO_KMGMT_PSK)
pos += sprintf(pos, "PSK/");
if (suites & IWINFO_KMGMT_8021x)
pos += sprintf(pos, "802.1X/");
if (!suites || (suites & IWINFO_KMGMT_NONE))
pos += sprintf(pos, "NONE/");
*(pos - 1) = 0;
return str;
}
static char * format_encryption(struct iwinfo_crypto_entry *c)
{
static char buf[512];
if (!c)
{
snprintf(buf, sizeof(buf), "unknown");
}
else if (c->enabled)
{
/* WEP */
if (c->auth_algs && !c->wpa_version)
{
if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
(c->auth_algs & IWINFO_AUTH_SHARED))
{
snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
format_enc_ciphers(c->pair_ciphers));
}
else if (c->auth_algs & IWINFO_AUTH_OPEN)
{
snprintf(buf, sizeof(buf), "WEP Open System (%s)",
format_enc_ciphers(c->pair_ciphers));
}
else if (c->auth_algs & IWINFO_AUTH_SHARED)
{
snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
format_enc_ciphers(c->pair_ciphers));
}
}
/* WPA */
else if (c->wpa_version)
{
switch (c->wpa_version) {
case 3:
snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
format_enc_suites(c->auth_suites),
format_enc_ciphers(c->pair_ciphers & c->group_ciphers));
break;
case 2:
snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
format_enc_suites(c->auth_suites),
format_enc_ciphers(c->pair_ciphers & c->group_ciphers));
break;
case 1:
snprintf(buf, sizeof(buf), "WPA %s (%s)",
format_enc_suites(c->auth_suites),
format_enc_ciphers(c->pair_ciphers & c->group_ciphers));
break;
}
}
else
{
snprintf(buf, sizeof(buf), "none");
}
}
else
{
snprintf(buf, sizeof(buf), "none");
}
return buf;
}
static char * format_hwmodes(int modes)
{
static char buf[12];
if (modes <= 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "802.11%s%s%s%s",
(modes & IWINFO_80211_A) ? "a" : "",
(modes & IWINFO_80211_B) ? "b" : "",
(modes & IWINFO_80211_G) ? "g" : "",
(modes & IWINFO_80211_N) ? "n" : "");
return buf;
}
static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
{
const char *type = iwinfo_type(ifname);
return type ? type : "unknown";
}
static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
{
char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
if (iw->ssid(ifname, buf))
memset(buf, 0, sizeof(buf));
return format_ssid(buf);
}
static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
{
static char buf[18] = { 0 };
if (iw->bssid(ifname, buf))
snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
return buf;
}
static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
{
static char buf[128];
if (iw->mode(ifname, buf))
snprintf(buf, sizeof(buf), "unknown");
return buf;
}
static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
{
int ch;
if (iw->channel(ifname, &ch))
ch = -1;
return format_channel(ch);
}
static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
{
int freq;
if (iw->frequency(ifname, &freq))
freq = -1;
return format_frequency(freq);
}
static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
{
int pwr;
if (iw->txpower(ifname, &pwr))
pwr = -1;
return format_txpower(pwr);
}
static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
{
int qual;
if (iw->quality(ifname, &qual))
qual = -1;
return format_quality(qual);
}
static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
{
int qmax;
if (iw->quality_max(ifname, &qmax))
qmax = -1;
return format_quality_max(qmax);
}
static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
{
int sig;
if (iw->signal(ifname, &sig))
sig = 0;
return format_signal(sig);
}
static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
{
int noise;
if (iw->noise(ifname, &noise))
noise = 0;
return format_noise(noise);
}
static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
{
int rate;
if (iw->bitrate(ifname, &rate))
rate = -1;
return format_rate(rate);
}
static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
{
struct iwinfo_crypto_entry c = { 0 };
if (iw->encryption(ifname, (char *)&c))
return format_encryption(NULL);
return format_encryption(&c);
}
static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
{
int modes;
if (iw->hwmodelist(ifname, &modes))
modes = -1;
return format_hwmodes(modes);
}
static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
{
int supp;
static char buf[4];
if (iw->mbssid_support(ifname, &supp))
snprintf(buf, sizeof(buf), "no");
else
snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
return buf;
}
static void print_info(const struct iwinfo_ops *iw, const char *ifname)
{
printf("%-9s ESSID: %s\n",
ifname,
print_ssid(iw, ifname));
printf(" Access Point: %s\n",
print_bssid(iw, ifname));
printf(" Type: %s HW Mode(s): %s\n",
print_type(iw, ifname),
print_hwmodes(iw, ifname));
printf(" Mode: %s Channel: %s (%s)\n",
print_mode(iw, ifname),
print_channel(iw, ifname),
print_frequency(iw, ifname));
printf(" Tx-Power: %s Link Quality: %s/%s\n",
print_txpower(iw, ifname),
print_quality(iw, ifname),
print_quality_max(iw, ifname));
printf(" Signal: %s Noise: %s\n",
print_signal(iw, ifname),
print_noise(iw, ifname));
printf(" Bit Rate: %s\n",
print_rate(iw, ifname));
printf(" Encryption: %s\n",
print_encryption(iw, ifname));
printf(" Supports VAPs: %s\n",
print_mbssid_supp(iw, ifname));
}
static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
{
int i, x, len;
char buf[IWINFO_BUFSIZE];
struct iwinfo_scanlist_entry *e;
if (iw->scanlist(ifname, buf, &len))
{
printf("Scanning not possible\n\n");
return;
}
else if (len <= 0)
{
printf("No scan results\n\n");
return;
}
for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
{
e = (struct iwinfo_scanlist_entry *) &buf[i];
printf("Cell %02d - Address: %s\n",
x,
format_bssid(e->mac));
printf(" ESSID: %s\n",
format_ssid(e->ssid));
printf(" Mode: %s Channel: %s\n",
e->mode ? (char *)e->mode : "unknown",
format_channel(e->channel));
printf(" Signal: %s Quality: %s/%s\n",
format_signal(e->signal - 0x100),
format_quality(e->quality),
format_quality_max(e->quality_max));
printf(" Encryption: %s\n\n",
format_encryption(&e->crypto));
}
}
static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
{
int len, pwr, i;
char buf[IWINFO_BUFSIZE];
struct iwinfo_txpwrlist_entry *e;
if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
{
printf("No TX power information available\n");
return;
}
if (iw->txpower(ifname, &pwr))
pwr = -1;
for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
{
e = (struct iwinfo_txpwrlist_entry *) &buf[i];
printf("%s%3d dBm (%4d mW)\n",
(pwr == e->dbm) ? "*" : " ",
e->dbm,
e->mw);
}
}
static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
{
int i, len, ch;
char buf[IWINFO_BUFSIZE];
struct iwinfo_freqlist_entry *e;
if (iw->freqlist(ifname, buf, &len) || len <= 0)
{
printf("No frequency information available\n");
return;
}
if (iw->channel(ifname, &ch))
ch = -1;
for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
{
e = (struct iwinfo_freqlist_entry *) &buf[i];
printf("%s %s (Channel %s)%s\n",
(ch == e->channel) ? "*" : " ",
format_frequency(e->mhz),
format_channel(e->channel),
e->restricted ? " [restricted]" : "");
}
}
static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
{
int i, len;
char buf[IWINFO_BUFSIZE];
struct iwinfo_assoclist_entry *e;
if (iw->assoclist(ifname, buf, &len))
{
printf("No information available\n");
return;
}
else if (len <= 0)
{
printf("No station connected\n");
return;
}
for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
{
e = (struct iwinfo_assoclist_entry *) &buf[i];
printf("%s %s / %s (SNR %d)\n",
format_bssid(e->mac),
format_signal(e->signal),
format_noise(e->noise),
(e->signal - e->noise));
}
}
static char * lookup_country(char *buf, int len, int iso3166)
{
int i;
struct iwinfo_country_entry *c;
for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
{
c = (struct iwinfo_country_entry *) &buf[i];
if (c->iso3166 == iso3166)
return c->ccode;
}
return NULL;
}
static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
{
int len;
char buf[IWINFO_BUFSIZE];
char *ccode;
char curcode[3];
const struct iwinfo_iso3166_label *l;
if (iw->countrylist(ifname, buf, &len))
{
printf("No country code information available\n");
return;
}
if (iw->country(ifname, curcode))
memset(curcode, 0, sizeof(curcode));
for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
{
if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
{
printf("%s %4s %c%c\n",
strncmp(ccode, curcode, 2) ? " " : "*",
ccode, (l->iso3166 / 256), (l->iso3166 % 256));
}
}
}
int main(int argc, char **argv)
{
int i;
const struct iwinfo_ops *iw;
if (argc < 3)
{
fprintf(stderr,
"Usage:\n"
" iwinfo <device> info\n"
" iwinfo <device> scan\n"
" iwinfo <device> txpowerlist\n"
" iwinfo <device> freqlist\n"
" iwinfo <device> assoclist\n"
" iwinfo <device> countrylist\n"
);
return 1;
}
iw = iwinfo_backend(argv[1]);
if (!iw)
{
fprintf(stderr, "No such wireless device: %s\n", argv[1]);
return 1;
}
for (i = 2; i < argc; i++)
{
switch(argv[i][0])
{
case 'i':
print_info(iw, argv[1]);
break;
case 's':
print_scanlist(iw, argv[1]);
break;
case 't':
print_txpwrlist(iw, argv[1]);
break;
case 'f':
print_freqlist(iw, argv[1]);
break;
case 'a':
print_assoclist(iw, argv[1]);
break;
case 'c':
print_countrylist(iw, argv[1]);
break;
default:
fprintf(stderr, "Unknown command: %s\n", argv[i]);
return 1;
}
}
iwinfo_finish();
return 0;
}