aboutsummaryrefslogtreecommitdiffstats
path: root/framework/src/suricata/src/util-memrchr.c
diff options
context:
space:
mode:
Diffstat (limited to 'framework/src/suricata/src/util-memrchr.c')
-rw-r--r--framework/src/suricata/src/util-memrchr.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/framework/src/suricata/src/util-memrchr.c b/framework/src/suricata/src/util-memrchr.c
new file mode 100644
index 00000000..ebac1764
--- /dev/null
+++ b/framework/src/suricata/src/util-memrchr.c
@@ -0,0 +1,67 @@
+/* Copyright (C) 2007-2013 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * 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
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Victor Julien <victor@inliniac.net>
+ *
+ */
+
+#include "suricata-common.h"
+#include "util-unittest.h"
+
+#ifndef HAVE_MEMRCHR
+void *memrchr (const void *s, int c, size_t n)
+{
+ const char *end = s + n;
+
+ while (end > (const char *)s) {
+ if (*end == (char)c)
+ return (void *)end;
+ end--;
+ }
+ return NULL;
+}
+#endif /* HAVE_MEMRCHR */
+
+#ifdef UNITTESTS
+static int MemrchrTest01 (void)
+{
+ char *haystack = "abcabc";
+ char needle = 'b';
+
+ char *ptr = memrchr(haystack, needle, strlen(haystack));
+ if (ptr == NULL)
+ return 0;
+
+ if (strlen(ptr) != 2)
+ return 0;
+
+ if (strcmp(ptr, "bc") != 0)
+ return 0;
+
+ return 1;
+}
+#endif
+
+void MemrchrRegisterTests(void)
+{
+#ifdef UNITTESTS
+ UtRegisterTest("MemrchrTest01", MemrchrTest01, 1);
+#endif
+}