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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;