diff options
Diffstat (limited to 'nss/nss_files/files-alias.c')
| -rw-r--r-- | nss/nss_files/files-alias.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/nss/nss_files/files-alias.c b/nss/nss_files/files-alias.c index 99217fa7c5..0a910aa0fe 100644 --- a/nss/nss_files/files-alias.c +++ b/nss/nss_files/files-alias.c @@ -1,5 +1,5 @@ /* Mail alias file parser in nss_files module. - Copyright (C) 1996 Free Software Foundation, Inc. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. @@ -21,6 +21,7 @@ #include <aliases.h> #include <ctype.h> #include <errno.h> +#include <fcntl.h> #include <bits/libc-lock.h> #include <stdlib.h> #include <stdio.h> @@ -49,6 +50,26 @@ internal_setent (void) if (stream == NULL) status = NSS_STATUS_UNAVAIL; + else + { + /* We have to make sure the file is `closed on exec'. */ + int result, flags; + + result = flags = fcntl (fileno (stream), F_GETFD, 0); + if (result >= 0) + { + flags |= FD_CLOEXEC; + result = fcntl (fileno (stream), F_SETFD, flags); + } + if (result < 0) + { + /* Something went wrong. Close the stream and return a + failure. */ + fclose (stream); + stream = NULL; + status = NSS_STATUS_UNAVAIL; + } + } } else rewind (stream); |