Mark simple file and socket descriptors as uninheritable.

This patch creates two utility functions:

  int open_cloexec(pathname, flags)
  int create_cloexec(pathname, flags, mode)

These return a file descriptor with the CLOEXEC flag set, to ensure
that the descriptor is not inherited across a fork/exec operation.

The sockets returned by:

   _x_io_tcp_connect_ipv4()
   _x_io_tcp_connect()

now also have their CLOEXEC flag set.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/input/input_stdin_fifo.c b/src/input/input_stdin_fifo.c
index 74f2a1014..c73488722 100644
--- a/src/input/input_stdin_fifo.c
+++ b/src/input/input_stdin_fifo.c
@@ -253,7 +253,7 @@ static int stdin_plugin_open (input_plugin_t *this_gen ) {
     char *filename;
 
     filename = (char *) &this->mrl[5];
-    this->fh = open (filename, FILE_FLAGS);
+    this->fh = open_cloexec(filename, FILE_FLAGS);
 
     lprintf("filename '%s'\n", filename);