From b0028dd5bf2d5466a50dfd12a82a23f30e9ccf48 Mon Sep 17 00:00:00 2001
From: Amitay Isaacs <amitay@gmail.com>
Date: Tue, 10 Jul 2018 19:09:00 +1000
Subject: [PATCH] ctdb-tests: Add signal code matching utility

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13520

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
---
 ctdb/tests/src/sigcode.c | 120 +++++++++++++++++++++++++++++++++++++++
 ctdb/wscript             |   5 ++
 2 files changed, 125 insertions(+)
 create mode 100644 ctdb/tests/src/sigcode.c

diff --git a/ctdb/tests/src/sigcode.c b/ctdb/tests/src/sigcode.c
new file mode 100644
index 00000000000..1318d246891
--- /dev/null
+++ b/ctdb/tests/src/sigcode.c
@@ -0,0 +1,120 @@
+/*
+   Portability layer for signal codes
+
+   Copyright (C) Amitay Isaacs  2018
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * These signals are as listed in POSIX standard
+ * IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
+ */
+
+#include "replace.h"
+#include "system/wait.h"
+
+struct {
+	const char *label;
+	int code;
+} sig_codes[] = {
+	{ "SIGABRT", SIGABRT },
+	{ "SIGALRM", SIGALRM },
+	{ "SIBGUS", SIGBUS },
+	{ "SIGCHLD", SIGCHLD },
+	{ "SIGCONT", SIGCONT },
+	{ "SIGFPE", SIGFPE },
+	{ "SIGHUP", SIGHUP },
+	{ "SIGILL", SIGILL },
+	{ "SIGINT", SIGINT },
+	{ "SIGKILL", SIGKILL },
+	{ "SIGPIPE", SIGPIPE },
+	{ "SIGQUIT", SIGQUIT },
+	{ "SIGSEGV", SIGSEGV },
+	{ "SIGSTOP", SIGSTOP },
+	{ "SIGTERM", SIGTERM },
+	{ "SIGTSTP", SIGTSTP },
+	{ "SIGTTIN", SIGTTIN },
+	{ "SIGTTOU", SIGTTOU },
+	{ "SIGUSR1", SIGUSR1 },
+	{ "SIGUSR2", SIGUSR2 },
+	{ "SIGTRAP", SIGTRAP },
+	{ "SIGURG", SIGURG },
+	{ "SIGXCPU", SIGXCPU },
+	{ "SIGXFSZ", SIGXFSZ },
+
+};
+
+static void dump(void)
+{
+	int i;
+
+	for (i=0; i<ARRAY_SIZE(sig_codes); i++) {
+		printf("%s %d\n", sig_codes[i].label, sig_codes[i].code);
+	}
+}
+
+static void match_label(const char *str)
+{
+	int code = -1;
+	int i;
+
+	for (i=0; i<ARRAY_SIZE(sig_codes); i++) {
+		if (strcasecmp(sig_codes[i].label, str) == 0) {
+			code = sig_codes[i].code;
+			break;
+		}
+	}
+
+	printf("%d\n", code);
+}
+
+static void match_code(int code)
+{
+	const char *label = "UNKNOWN";
+	int i;
+
+	for (i=0; i<ARRAY_SIZE(sig_codes); i++) {
+		if (sig_codes[i].code == code) {
+			label = sig_codes[i].label;
+			break;
+		}
+	}
+
+	printf("%s\n", label);
+}
+
+int main(int argc, const char **argv)
+{
+	long int code;
+	char *endptr;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s dump|<sigcode>\n", argv[0]);
+		exit(1);
+	}
+
+	if (strcmp(argv[1], "dump") == 0) {
+		dump();
+	} else {
+		code = strtol(argv[1], &endptr, 0);
+		if (*endptr == '\0') {
+			match_code(code);
+		} else {
+			match_label(argv[1]);
+		}
+	}
+
+	exit(0);
+}
diff --git a/ctdb/wscript b/ctdb/wscript
index 08c8016dd39..c26bd8c0d9a 100644
--- a/ctdb/wscript
+++ b/ctdb/wscript
@@ -847,6 +847,11 @@ def build(bld):
                      deps='replace',
                      install_path='${CTDB_TEST_LIBEXECDIR}')
 
+    bld.SAMBA_BINARY('sigcode',
+                     source='tests/src/sigcode.c',
+                     deps='replace',
+                     install_path='${CTDB_TEST_LIBEXECDIR}')
+
     # Unit tests
     ctdb_unit_tests = [
         'db_hash_test',