initial import

1 files changed, 62 insertions, 0 deletions

diff --git a/sysdeps/unix/bsd/sigaction.c b/sysdeps/unix/bsd/sigaction.c
new file mode 100644
index 0000000000..aa1c53f6cd
--- /dev/null
+++ b/sysdeps/unix/bsd/sigaction.c
@@ -0,0 +1,62 @@
+/* Copyright (C) 1991, 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sysdep.h>
+#include <errno.h>
+#include <stddef.h>
+#include <signal.h>
+
+
+/* If ACT is not NULL, change the action for SIG to *ACT.
+   If OACT is not NULL, put the old action for SIG in *OACT.  */
+int
+DEFUN(__sigaction, (sig, act, oact),
+      int sig AND CONST struct sigaction *act AND struct sigaction *oact)
+{
+  struct sigvec vec, ovec;
+
+  if (sig <= 0 || sig >= NSIG)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (act != NULL)
+    {
+      vec.sv_mask = act->sa_mask;
+      vec.sv_handler = act->sa_handler;
+      vec.sv_flags = (((act->sa_flags & SA_ONSTACK) ? SV_ONSTACK : 0) |
+		      (!(act->sa_flags & SA_RESTART) ? SV_INTERRUPT : 0));
+    }
+
+  if (__sigvec(sig, act != NULL ? &vec : (struct sigvec *) NULL, &ovec) < 0)
+    return -1;
+
+  if (oact != NULL)
+    {
+      oact->sa_handler = (void EXFUN((*), (int))) ovec.sv_handler;
+      oact->sa_mask = ovec.sv_mask;
+      oact->sa_flags = (((ovec.sv_flags & SV_ONSTACK) ? SA_ONSTACK : 0) |
+			(!(ovec.sv_flags & SV_INTERRUPT) ? SA_RESTART : 0));
+    }
+
+  return 0;
+}
+
+weak_alias (__sigaction, sigaction)