[libiwinfo] apply FD_CLOEXEC on internal ioctl and netlink sockets

contrib/package/iwinfo/Makefile

@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libiwinfo
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
 

contrib/package/iwinfo/src/iwinfo_madwifi.c

@@ -202,7 +202,10 @@ static int madwifi_ioctl(struct iwreq *wrq, const char *ifname, int cmd, void *d
 {
 	/* prepare socket */
 	if( ioctl_socket == -1 )
+	{
 		ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
+		fcntl(ioctl_socket, F_SETFD, fcntl(ioctl_socket, F_GETFD) | FD_CLOEXEC);
+	}
 
   	strncpy(wrq->ifr_name, ifname, IFNAMSIZ);
 

contrib/package/iwinfo/src/iwinfo_madwifi.h

@@ -19,6 +19,8 @@
 #ifndef __IWINFO_MADWIFI_H_
 #define __IWINFO_MADWIFI_H_
 
+#include <fcntl.h>
+
 #include "iwinfo.h"
 #include "include/madwifi.h"
 

contrib/package/iwinfo/src/iwinfo_nl80211.c

@@ -32,7 +32,7 @@ static struct nl80211_state *nls = NULL;
 
 static int nl80211_init(void)
 {
-	int err;
+	int err, fd;
 
 	if( !nls )
 	{
@@ -53,6 +53,13 @@ static int nl80211_init(void)
 			goto err;
 		}
 
+		fd = nl_socket_get_fd(nls->nl_sock);
+		if( fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0 )
+		{
+			err = -EINVAL;
+			goto err;
+		}
+
 		if( genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) {
 			err = -ENOMEM;
 			goto err;
@@ -332,6 +339,9 @@ static char * nl80211_wpasupp_info(const char *ifname, const char *cmd)
 	remote_length = sizeof(remote.sun_family) + sprintf(remote.sun_path,
 		"/var/run/wpa_supplicant-%s/%s", ifname, ifname);
 
+	if( fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0 )
+		goto out;
+
 	if( connect(sock, (struct sockaddr *) &remote, remote_length) )
 		goto out;
 

contrib/package/iwinfo/src/iwinfo_nl80211.h

@@ -20,6 +20,7 @@
 #define __IWINFO_NL80211_H_
 
 #include <errno.h>
+#include <fcntl.h>
 #include <unistd.h>
 #include <string.h>
 #include <sys/socket.h>

contrib/package/iwinfo/src/iwinfo_wext.c

@@ -89,7 +89,10 @@ static int wext_ioctl(const char *ifname, int cmd, struct iwreq *wrq)
 {
 	/* prepare socket */
 	if( ioctl_socket == -1 )
+	{
 		ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
+		fcntl(ioctl_socket, F_SETFD, fcntl(ioctl_socket, F_GETFD) | FD_CLOEXEC);
+	}
 
 	if( !strncmp(ifname, "mon.", 4) )
 		strncpy(wrq->ifr_name, &ifname[4], IFNAMSIZ);

contrib/package/iwinfo/src/iwinfo_wext.h

@@ -19,6 +19,8 @@
 #ifndef __IWINFO_WEXT_H_
 #define __IWINFO_WEXT_H_
 
+#include <fcntl.h>
+
 #include "iwinfo.h"
 #include "include/wext.h"
 

contrib/package/iwinfo/src/iwinfo_wext_scan.c

@@ -29,7 +29,10 @@ static int wext_ioctl(const char *ifname, int cmd, struct iwreq *wrq)
 {
 	/* prepare socket */
 	if( ioctl_socket == -1 )
+	{
 		ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
+		fcntl(ioctl_socket, F_SETFD, fcntl(ioctl_socket, F_GETFD) | FD_CLOEXEC);
+	}
 
   	strncpy(wrq->ifr_name, ifname, IFNAMSIZ);
 	return ioctl(ioctl_socket, cmd, wrq);
@@ -650,4 +653,3 @@ int wext_get_scanlist(const char *ifname, char *buf, int *len)
 
 	return -1;
 }
-

contrib/package/iwinfo/src/iwinfo_wext_scan.h

@@ -19,6 +19,8 @@
 #ifndef __IWINFO_WEXT_SCAN_H_
 #define __IWINFO_WEXT_SCAN_H_
 
+#include <fcntl.h>
+
 #include "iwinfo.h"
 #include "include/wext.h"
 

contrib/package/iwinfo/src/iwinfo_wl.c

@@ -30,7 +30,10 @@ static int wl_ioctl(const char *name, int cmd, void *buf, int len)
 
 	/* prepare socket */
 	if( ioctl_socket == -1 )
+	{
 		ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
+		fcntl(ioctl_socket, F_SETFD, fcntl(ioctl_socket, F_GETFD) | FD_CLOEXEC);
+	}
 
 	/* do it */
 	ioc.cmd = cmd;

contrib/package/iwinfo/src/iwinfo_wl.h

@@ -19,6 +19,8 @@
 #ifndef __IWINFO_WL_H_
 #define __IWINFO_WL_H_
 
+#include <fcntl.h>
+
 #include "iwinfo.h"
 #include "include/broadcom.h"