diff options
| author |   guenther <guenther@openbsd.org> | 2014-08-31 02:21:18 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2014-08-31 02:21:18 +0000 |
| commit | ed42a740c17f7bea88482a716bacbc46a06b7249 (patch) | |
| tree | 41266fb76fcd0cc0229b872cae91df94a24ad430 /lib/libc/stdio/freopen.c | |
| parent | regen (diff) | |
| download | wireguard-openbsd-ed42a740c17f7bea88482a716bacbc46a06b7249.tar.xz wireguard-openbsd-ed42a740c17f7bea88482a716bacbc46a06b7249.zip | |
Add additional userland interfaces for setting close-on-exec on fds
when creating them: mkostemp(), mkostemps(), the 'e' mode letter for
fopen(), freopen(), fdopen(), and popen(). The close-on-exec flag will
be cleared by the action created by posix_spawn_file_actions_adddup2().
Also, add support for the C11 'x' mode letter for fopen() and freopen(),
setting O_EXCL when possibly creating files.
Note: this requires kernel support for pipe2() and dup3()!
ok millert@
Diffstat (limited to 'lib/libc/stdio/freopen.c')
| -rw-r--r-- | lib/libc/stdio/freopen.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/libc/stdio/freopen.c b/lib/libc/stdio/freopen.c index 3158fb174dd..82717b1e26c 100644 --- a/lib/libc/stdio/freopen.c +++ b/lib/libc/stdio/freopen.c @@ -1,4 +1,4 @@ -/* $OpenBSD: freopen.c,v 1.13 2009/11/09 00:18:27 kurt Exp $ */ +/* $OpenBSD: freopen.c,v 1.14 2014/08/31 02:21:18 guenther Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. @@ -134,7 +134,7 @@ freopen(const char *file, const char *mode, FILE *fp) * assume stderr is always fd STDERR_FILENO, even if being freopen'd. */ if (wantfd >= 0 && f != wantfd) { - if (dup2(f, wantfd) >= 0) { + if (dup3(f, wantfd, oflags & O_CLOEXEC) >= 0) { (void) close(f); f = wantfd; } |