Add functions to determine whether a path is absolute or relative.

src/Makefile.am

@@ -225,6 +225,7 @@ util-device.c util-device.h \
 util-checksum.c util-checksum.h \
 util-runmodes.c util-runmodes.h \
 util-file.c util-file.h \
+util-path.c util-path.h \
 tm-modules.c tm-modules.h \
 tm-queues.c tm-queues.h \
 tm-queuehandlers.c tm-queuehandlers.h \

src/suricata-common.h

@@ -203,6 +203,7 @@ typedef enum PacketProfileDetectId_ {
 #include "util-mem.h"
 #include "detect-engine-alert.h"
 #include "util-optimize.h"
+#include "util-path.h"
 
 size_t strlcat(char *, const char *src, size_t siz);
 size_t strlcpy(char *dst, const char *src, size_t siz);

src/util-path.c

@@ -0,0 +1,64 @@
+/* Copyright (C) 2007-2012 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 "suricata.h"
+#include "debug.h"
+#include "util-debug.h"
+
+/**
+ *  \brief Check if a path is absolute
+ *
+ *  \param path string with the path
+ *
+ *  \retval 1 absolute
+ *  \retval 0 not absolute
+ */
+int PathIsAbsolute(const char *path) {
+    if (strlen(path) > 1 && path[0] == '/') {
+        return 1;
+    }
+
+#ifdef OS_WIN32
+    if (strlen(path) > 2) {
+        if (isalpha(path[0]) && path[1] == ':') {
+            return 1;
+        }
+    }
+#endif
+
+    return 0;
+}
+
+/**
+ *  \brief Check if a path is relative
+ *
+ *  \param path string with the path
+ *
+ *  \retval 1 relative
+ *  \retval 0 not relative
+ */
+int PathIsRelative(const char *path) {
+    return PathIsAbsolute(path) ? 0 : 1;
+}

src/util-path.h

@@ -0,0 +1,31 @@
+/* Copyright (C) 2007-2012 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>
+ *
+ */
+
+#ifndef __UTIL_PATH_H__
+#define __UTIL_PATH_H__
+
+int PathIsAbsolute(const char *);
+int PathIsRelative(const char *);
+
+#endif /* __UTIL_PATH_H__ */