check for the existance of default logging directory

src/suricata-common.h

@@ -37,6 +37,7 @@
 #include <sys/signal.h>
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <sys/stat.h>
 
 #include <arpa/inet.h>
 #include <netinet/in.h>

src/suricata.c

@@ -300,6 +300,9 @@ int main(int argc, char **argv)
     int list_unittests = 0;
     int daemon = 0;
 
+    char *log_dir;
+    struct stat buf;
+
     /* initialize the logging subsys */
     SCLogInitLogModule(NULL);
 
@@ -445,6 +448,17 @@ int main(int argc, char **argv)
         exit(EXIT_SUCCESS);
     }
 
+    /* Check for the existance of the default logging directory which we pick
+     * from suricata.yaml.  If not found, shut the engine down */
+    if (ConfGet("default-log-dir", &log_dir) != 1)
+        log_dir = DEFAULT_LOG_DIR;
+    if (stat(log_dir, &buf) != 0) {
+        SCLogError(SC_ERR_STAT_ERROR, "The logging directory \"%s\" picked from "
+                   "suricata.yaml(default-log-dir), doesn't exist.  Shutting "
+                   "down the engine", log_dir);
+        exit(EXIT_FAILURE);
+    }
+
     /* Since our config is now loaded we can finish configurating the
      * logging module. */
     SCLogLoadConfig();

src/util-error.h

@@ -84,6 +84,7 @@ typedef enum {
     SC_ERR_NO_URICONTENT_NEGATION,
     SC_ERR_FOPEN_ERROR,
     SC_ERR_HASH_TABLE_INIT_FAILED,
+    SC_ERR_STAT_ERROR,
 } SCError;
 
 const char *SCErrorToString(SCError);