fix segfaults on bad api command usage MODAPP-34

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6010 d0543943-73ff-0310-b7d9-9358b9ac24b2

diff --git a/src/mod/applications/mod_commands/mod_commands.c b/src/mod/applications/mod_commands/mod_commands.c
index 2b5aaf5c3fd653e155c7553a091d2c02b488637d..4698c265281fa8381fb8ad079f5100f490a9217f 100644 (file)
--- a/src/mod/applications/mod_commands/mod_commands.c
+++ b/src/mod/applications/mod_commands/mod_commands.c
@@ -333,6 +333,11 @@ SWITCH_STANDARD_API(tone_detect_session_function)
        time_t to = 0;
        switch_core_session_t *rsession;
        
+       if (!cmd) {
+               stream->write_function(stream, "USAGE: %s\n", TONE_DETECT_SYNTAX);
+               return SWITCH_STATUS_SUCCESS;
+       }
+
        mydata = strdup(cmd);
        assert(mydata != NULL);
 
@@ -989,6 +994,11 @@ static void sch_api_callback(switch_scheduler_task_t *task)
 SWITCH_STANDARD_API(sched_del_function)
 {
        uint32_t cnt = 0;
+
+       if (!cmd) {
+               stream->write_function(stream, "Invalid syntax\n");
+               return SWITCH_STATUS_SUCCESS;
+       }
        
        if (switch_is_digit_string(cmd)) {
                int64_t tmp;
@@ -1010,6 +1020,11 @@ SWITCH_STANDARD_API(xml_wrap_api_function)
        char *dcommand, *edata = NULL, *send = NULL, *command, *arg = NULL;
        switch_stream_handle_t mystream = { 0 };
        int encoded = 0, elen = 0;
+
+       if (!cmd) {
+               stream->write_function(stream, "Invalid syntax\n");
+               return SWITCH_STATUS_SUCCESS;
+       }
        
        if ((dcommand = strdup(cmd))) {
                if (!strncasecmp(dcommand, "encoded ", 8)) {
@@ -1059,7 +1074,10 @@ SWITCH_STANDARD_API(sched_api_function)
        char *tm = NULL, *dcmd, *group;
        time_t when;
 
-       assert(cmd != NULL);
+       if (!cmd) {
+               stream->write_function(stream, "Invalid syntax\n");
+               return SWITCH_STATUS_SUCCESS;
+       }
        tm = strdup(cmd);
        assert(tm != NULL);