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Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c')
-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c b/REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c
new file mode 100644
index 0000000000..c76c9374c9
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 1997-2017 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+
+#include <sysdep.h>
+#include <sys/syscall.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>
+
+
+/* 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
+__libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+{
+ int result;
+
+ struct kernel_sigaction kact, koact;
+
+ if (act)
+ {
+ kact.k_sa_handler = act->sa_handler;
+ memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
+ kact.sa_flags = act->sa_flags;
+#ifdef HAVE_SA_RESTORER
+ kact.sa_restorer = act->sa_restorer;
+#endif
+ }
+
+ /* XXX The size argument hopefully will have to be changed to the
+ real size of the user-level sigset_t. */
+ result = INLINE_SYSCALL (rt_sigaction, 4, sig,
+ act ? &kact : NULL,
+ oact ? &koact : NULL, _NSIG / 8);
+
+ if (oact && result >= 0)
+ {
+ oact->sa_handler = koact.k_sa_handler;
+ memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
+ oact->sa_flags = koact.sa_flags;
+#ifdef HAVE_SA_RESTORER
+ oact->sa_restorer = koact.sa_restorer;
+#endif
+ }
+ return result;
+}
+libc_hidden_def (__libc_sigaction)
+
+#include <nptl/sigaction.c>