Merge pull request #1614 from cesanta/udp-ssdp-search

Added parsing of remote responses

examples/udp-ssdp-search/main.c

@@ -8,11 +8,26 @@ static const char *s_ssdp_url = "udp://239.255.255.250:1900";
 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
   MG_DEBUG(("%p got event: %d %p %p", c, ev, ev_data, fn_data));
   if (ev == MG_EV_OPEN) {
-    c->is_hexdumping = 1;
+    //    c->is_hexdumping = 1;
   } else if (ev == MG_EV_RESOLVE) {
     // c->rem gets populated with multicast address. Store it in c->label
     memcpy(c->label, &c->rem, sizeof(c->rem));
   } else if (ev == MG_EV_READ) {
+    MG_INFO(("Got a response"));
+    struct mg_http_message hm;
+    if (mg_http_parse((const char *) c->recv.buf, c->recv.len, &hm) > 0) {
+      size_t i, max = sizeof(hm.headers) / sizeof(hm.headers[0]);
+      // Iterate over request headers
+      for (i = 0; i < max && hm.headers[i].name.len > 0; i++) {
+        struct mg_str *k = &hm.headers[i].name, *v = &hm.headers[i].value;
+        if ((mg_vcasecmp(k, "SERVER") == 0) ||
+            (mg_vcasecmp(k, "LOCATION") == 0)) {
+          printf("\t%.*s -> %.*s\n", (int) k->len, k->ptr, (int) v->len,
+                 v->ptr);
+        }
+      }
+      printf("\n");
+    }
     // Each response to the SSDP socket will change c->rem.
     // We can now do mg_printf(c, "haha"); to respond back to the remote side.
     // But in our case, we should restore the multicast address in order