1 files changed, 120 insertions, 0 deletions
diff --git a/src/util-detect.c b/src/util-detect.c
new file mode 100644
index 0000000..1b68e52
--- /dev/null
+++ b/src/util-detect.c
@@ -0,0 +1,120 @@
+/* Copyright (C) 2017 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 Giuseppe Longo <glongo@stamus-networks.com>
+ *
+ * Detection engine helper functions
+ */
+
+#include "suricata-common.h"
+#include "suricata.h"
+#include "detect.h"
+#include "util-detect.h"
+
+/**
+ * \brief Allocate SigString list member
+ *
+ * \retval Pointer to SigString
+ */
+SigString *SigStringAlloc(void)
+{
+    SigString *sigstr = SCCalloc(1, sizeof(SigString));
+    if (unlikely(sigstr == NULL))
+        return NULL;
+
+    sigstr->line = 0;
+
+    return sigstr;
+}
+
+/**
+ * \brief Assigns the filename, signature, lineno to SigString list member
+ *
+ * \param sig pointer to SigString
+ * \param sig_file filename that contains the signature
+ * \param sig_str signature in string format
+ * \param sig_error signature parsing error
+ * \param line line line number
+ *
+ * \retval 1 on success 0 on failure
+ */
+static int SigStringAddSig(SigString *sig, const char *sig_file,
+                           const char *sig_str, const char *sig_error,
+                           int line)
+{
+    if (sig_file == NULL || sig_str == NULL) {
+        return 0;
+    }
+
+    sig->filename = SCStrdup(sig_file);
+    if (sig->filename == NULL) {
+        SCLogError("Error allocating memory");
+        return 0;
+    }
+
+    sig->sig_str = SCStrdup(sig_str);
+    if (sig->sig_str == NULL) {
+        SCLogError("Error allocating memory");
+        SCFree(sig->filename);
+        return 0;
+    }
+
+    if (sig_error) {
+        sig->sig_error = SCStrdup(sig_error);
+        if (sig->sig_error == NULL) {
+            SCLogError("Error allocating memory");
+            SCFree(sig->filename);
+            SCFree(sig->sig_str);
+            return 0;
+        }
+    }
+
+    sig->line = line;
+
+    return 1;
+}
+
+/**
+ * \brief Append a new list member to SigString list
+ *
+ * \param list pointer to the start of the SigString list
+ * \param sig_file filename that contains the signature
+ * \param sig_str signature in string format
+ * \param line line line number
+ *
+ * \retval 1 on success 0 on failure
+ */
+int SigStringAppend(SigFileLoaderStat *sig_stats, const char *sig_file,
+                    const char *sig_str, const char *sig_error, int line)
+{
+    SigString *item = SigStringAlloc();
+    if (item == NULL) {
+        return 0;
+    }
+
+    if (!SigStringAddSig(item, sig_file, sig_str, sig_error, line)) {
+        SCFree(item);
+        return 0;
+    }
+
+    TAILQ_INSERT_TAIL(&sig_stats->failed_sigs, item, next);
+
+    return 1;
+}