res_ari: Fix audiosocket segfault

Add check that data parameter specified when audiosocket used for externalMedia.

ASTERISK-29514 #close

Change-Id: Ie562f03c5d6c3835a3631f376b3d43e75b8f9617

diff --git a/res/ari/resource_channels.c b/res/ari/resource_channels.c
index 31856dc94d87b562afa7bee937757271fc4d1567..a3d0f31eb9147695f2f4acbb9d648aac2b2e71f9 100644 (file)
--- a/res/ari/resource_channels.c
+++ b/res/ari/resource_channels.c
@@ -2134,6 +2134,11 @@ static void external_media_audiosocket_tcp(struct ast_ari_channels_external_medi
        struct ast_channel *chan;
        struct varshead *vars;
 
+       if (ast_strlen_zero(args->data)) {
+               ast_ari_response_error(response, 400, "Bad Request", "data can not be empty");
+               return;
+       }
+
        endpoint_len = strlen("AudioSocket/") + strlen(args->external_host) + 1 + strlen(args->data) + 1;
        endpoint = ast_alloca(endpoint_len);
        /* The UUID is stored in the arbitrary data field */