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

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Added parsing of remote responses
This commit is contained in:
Sergey Lyubka 2022-07-04 15:14:39 +01:00 committed by GitHub
commit f841b85d7d
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1 changed files with 16 additions and 1 deletions
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17
examples/udp-ssdp-search/main.c
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@ -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