Use SIG_ERR to indicate tst_sig's default handler, to allow (and not clash with) SIG_DFL: SIG_DFL happens to be 0 as well as DEF_HANDLER - this means you cannot use SIG_DFL as tst_sig argument, eg. if you want to reset the signal handling in tests' children to normal. This patch changes DEF_HANDLER to be SIG_ERR, as this value cannot be normally used with tst_sig(), so they cannot clash. Signed-off-by: Jiri Palecek <jpalecek@web.de>.
diff --git a/include/test.h b/include/test.h
index 864b8de..ec51b1e 100644
--- a/include/test.h
+++ b/include/test.h
@@ -31,7 +31,7 @@
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*/
-/* $Id: test.h,v 1.22 2009/08/30 17:18:18 subrata_modak Exp $ */
+/* $Id: test.h,v 1.23 2009/09/27 17:46:05 subrata_modak Exp $ */
#ifndef __TEST_H__
#define __TEST_H__
@@ -91,7 +91,7 @@
/* defines for unexpected signal setup routine (set_usig.c) */
#define FORK 1 /* SIGCLD is to be ignored */
#define NOFORK 0 /* SIGCLD is to be caught */
-#define DEF_HANDLER 0 /* tells set_usig() to use default signal handler */
+#define DEF_HANDLER SIG_ERR /* tells set_usig() to use default signal handler */
/*
* The following defines are used to control tst_res and t_result reporting.