Test for handling initial signal handler setting correctly.

1 files changed, 64 insertions, 0 deletions

diff --git a/linuxthreads/tst-signal.c b/linuxthreads/tst-signal.c
new file mode 100644
index 0000000000..5eb0170c6c
--- /dev/null
+++ b/linuxthreads/tst-signal.c
@@ -0,0 +1,64 @@
+/* Test sigaction wrapper.  */
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@suse.de>.
+
+   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 <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+
+int
+main (int argc, char *argv[])
+{
+  struct sigaction old_sa, new_sa;
+
+  if (sigaction (SIGHUP, NULL, &old_sa) < 0)
+    {
+      printf ("cannot get signal action for SIGHUP: %m\n");
+      exit (1);
+    }
+
+  if (old_sa.sa_handler != SIG_IGN)
+    {
+      printf ("SIGHUP action should be SIG_IGN, is %p\n",
+	      (void *) old_sa.sa_handler);
+      exit (1);
+    }
+
+  new_sa.sa_handler = SIG_DFL;
+  if (sigaction (SIGHUP, &new_sa, NULL) < 0)
+    {
+      printf ("cannot set signal action for SIGHUP: %m\n");
+      exit (1);
+    }
+
+  if (sigaction (SIGHUP, NULL, &old_sa) < 0)
+    {
+      printf ("cannot get signal action for SIGHUP: %m\n");
+      exit (1);
+    }
+
+  if (old_sa.sa_handler != SIG_DFL)
+    {
+      printf ("SIGHUP action should be SIG_DFL, is %p\n",
+	      (void *) old_sa.sa_handler);
+      exit (1);
+    }
+
+  return 0;
+}