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authorUlrich Drepper <drepper@redhat.com>2004-09-12 18:05:37 +0000
committerUlrich Drepper <drepper@redhat.com>2004-09-12 18:05:37 +0000
commit9ad684229e7cf2f0b3c6068b2122701d167a5794 (patch)
tree74e661e3991005d7fb582984a493b5b918f11189 /posix
parentcf244b74a04435b6954d5499a09fa97a628bc3ab (diff)
downloadglibc-9ad684229e7cf2f0b3c6068b2122701d167a5794.tar.gz
Update.
* posix/spawn.h [__USE_GNU]: Define POSIX_SPAWN_USEVFORK. * posix/spawnattr_setflags.c: Check whether any unknown bit is set in FLAGS parameter and fail if this is the case. * sysdeps/posix/spawni.c: Use vfork if POSIX_SPAWN_USEVFORK flag is set.
Diffstat (limited to 'posix')
-rw-r--r--posix/spawn.h5
-rw-r--r--posix/spawnattr_setflags.c15
2 files changed, 18 insertions, 2 deletions
diff --git a/posix/spawn.h b/posix/spawn.h
index 09b1e9f8e4..ff77fcc8f9 100644
--- a/posix/spawn.h
+++ b/posix/spawn.h
@@ -1,5 +1,5 @@
/* Definitions for POSIX spawn interface.
- Copyright (C) 2000, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -57,6 +57,9 @@ typedef struct
#define POSIX_SPAWN_SETSIGMASK 0x08
#define POSIX_SPAWN_SETSCHEDPARAM 0x10
#define POSIX_SPAWN_SETSCHEDULER 0x20
+#ifdef __USE_GNU
+# define POSIX_SPAWN_USEVFORK 0x40
+#endif
__BEGIN_DECLS
diff --git a/posix/spawnattr_setflags.c b/posix/spawnattr_setflags.c
index 3618efab45..0c3f5d20b7 100644
--- a/posix/spawnattr_setflags.c
+++ b/posix/spawnattr_setflags.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,13 +16,26 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <errno.h>
#include <spawn.h>
#include <string.h>
+#define ALL_FLAGS (POSIX_SPAWN_RESETIDS \
+ | POSIX_SPAWN_SETPGROUP \
+ | POSIX_SPAWN_SETSIGDEF \
+ | POSIX_SPAWN_SETSIGMASK \
+ | POSIX_SPAWN_SETSCHEDPARAM \
+ | POSIX_SPAWN_SETSCHEDULER \
+ | POSIX_SPAWN_USEVFORK)
+
/* Store flags in the attribute structure. */
int
posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags)
{
+ /* Check no invalid bits are set. */
+ if (flags & ~ALL_FLAGS)
+ return EINVAL;
+
/* Store the flag word. */
attr->__flags = flags;