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, 12 insertions, 0 deletions

diff --git a/include/xine/xineutils.h b/include/xine/xineutils.h
index 6c62bb84f..8b1860ea6 100644
--- a/include/xine/xineutils.h
+++ b/include/xine/xineutils.h
@@ -181,6 +181,18 @@ void xine_usec_sleep(unsigned usec) XINE_PROTECTED;
  */
 char *xine_strcat_realloc (char **dest, char *append) XINE_PROTECTED;
 
+/**
+ * opens a file, ensuring that the descriptor will be closed
+ * automatically after a fork/execute.
+ */
+int open_cloexec(const char *name, int flags) XINE_PROTECTED;
+
+/**
+ * creates a file, ensuring that the descriptor will be closed
+ * automatically after a fork/execute.
+ */
+int create_cloexec(const char *name, int flags, mode_t mode) XINE_PROTECTED;
+
 /*
  * Color Conversion Utility Functions
  * The following data structures and functions facilitate the conversion