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Diffstat (limited to 'sysdeps/unix/sysv/linux/sigaction.c')
-rw-r--r--sysdeps/unix/sysv/linux/sigaction.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sigaction.c b/sysdeps/unix/sysv/linux/sigaction.c
new file mode 100644
index 0000000000..a7b3e07dae
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigaction.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 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 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <signal.h>
+
+/* The difference here is that the sigaction structure used in the
+ kernel is not the same as we use in the libc. Therefore we must
+ translate it here. */
+#include <kernel_sigaction.h>
+
+extern int __syscall_sigaction (int, const struct kernel_sigaction *,
+ struct kernel_sigaction *);
+
+/* 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
+__sigaction (sig, act, oact)
+ int sig;
+ const struct sigaction *act;
+ struct sigaction *oact;
+{
+ struct kernel_sigaction k_sigact, k_osigact;
+ int error;
+
+ if (act)
+ {
+ k_sigact.sa_handler = act->sa_handler;
+ k_sigact.sa_mask = act->sa_mask.__val[0];
+ k_sigact.sa_flags = act->sa_flags;
+#ifdef HAVE_SA_RESTORER
+ k_sigact.sa_restorer = act->sa_restorer;
+#endif
+ }
+ error = __syscall_sigaction (sig, act ? &k_sigact : 0,
+ oact ? &k_osigact : 0);
+ if (oact && error >= 0)
+ {
+ oact->sa_handler = k_osigact.sa_handler;
+ oact->sa_mask.__val[0] = k_osigact.sa_mask;
+ oact->sa_flags = k_osigact.sa_flags;
+#ifdef HAVE_SA_RESTORER
+ oact->sa_restorer = k_osigact.sa_restorer;
+#endif
+ }
+ return error;
+}
+
+weak_alias (__sigaction, sigaction)