X-Git-Url: https://git.wh0rd.org/?p=patches.git;a=blobdiff_plain;f=udhcp-close-fds.patch;fp=udhcp-close-fds.patch;h=ad6ac5cb85955bc8e7e44754da0f5185efb25ea1;hp=0000000000000000000000000000000000000000;hb=b53d1f41b32c8078c755a63c7bf0d2852263ee99;hpb=6d7b707a99652eefa9b245d8f1e0053f3583c79c

diff --git a/udhcp-close-fds.patch b/udhcp-close-fds.patch
new file mode 100644
index 0000000..ad6ac5c
--- /dev/null
+++ b/udhcp-close-fds.patch
@@ -0,0 +1,33 @@
+Index: signalpipe.c
+===================================================================
+--- signalpipe.c	(revision 14725)
++++ signalpipe.c	(working copy)
+@@ -20,6 +20,7 @@
+  */
+ 
+ #include <unistd.h>
++#include <fcntl.h>
+ #include <signal.h>
+ #include <sys/types.h>
+ #include <sys/socket.h>
+@@ -43,6 +44,8 @@ static void signal_handler(int sig)
+ void udhcp_sp_setup(void)
+ {
+ 	socketpair(AF_UNIX, SOCK_STREAM, 0, signal_pipe);
++	fcntl(signal_pipe[0], F_SETFD, FD_CLOEXEC);
++	fcntl(signal_pipe[1], F_SETFD, FD_CLOEXEC);
+ 	signal(SIGUSR1, signal_handler);
+ 	signal(SIGUSR2, signal_handler);
+ 	signal(SIGTERM, signal_handler);
+@@ -56,7 +59,10 @@ int udhcp_sp_fd_set(fd_set *rfds, int ex
+ {
+ 	FD_ZERO(rfds);
+ 	FD_SET(signal_pipe[0], rfds);
+-	if (extra_fd >= 0) FD_SET(extra_fd, rfds);
++	if (extra_fd >= 0) {
++		fcntl(extra_fd, F_SETFD, FD_CLOEXEC);
++		FD_SET(extra_fd, rfds);
++	}
+ 	return signal_pipe[0] > extra_fd ? signal_pipe[0] : extra_fd;
+ }
+