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-rw-r--r--signal/sigprocmask.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/signal/sigprocmask.c b/signal/sigprocmask.c
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--- /dev/null
+++ b/signal/sigprocmask.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <signal.h>
+
+
+/* If SET is not NULL, modify the current set of blocked signals
+ according to HOW, which may be SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK.
+ If OSET is not NULL, store the old set of blocked signals in *OSET. */
+int
+__sigprocmask (how, set, oset)
+ int how;
+ const sigset_t *set;
+ sigset_t *oset;
+{
+ switch (how)
+ {
+ case SIG_BLOCK:
+ case SIG_UNBLOCK:
+ case SIG_SETMASK:
+ break;
+ default:
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ __set_errno (ENOSYS);
+ return -1;
+}
+
+/* No stub warning because abort calls __sigprocmask,
+ and we don't want warnings for every use of abort on
+ a system without safe signals. */
+
+weak_alias (__sigprocmask, sigprocmask)