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refactor the rest of the drivers

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Sergio R. Caprile committed 2025-04-22 13:59:03 -03:00
1 parent dceb4beb09
commit 1d2a768184
17 files changed
+393 -301
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src/dns.c
+5 -5
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@@ -295,10 +295,10 @@ static void mdns_cb(struct mg_connection *c, int ev, void *ev_data) {
if (n > 0) {
// RFC-6762 Appendix C, RFC2181 11: m(n + 1-63), max 255 + 0x0
// buf and h declared here to ease future expansion to DNS-SD
char buf[sizeof(struct mg_dns_header) + 256 + sizeof(mdns_answer) + 4];
uint8_t buf[sizeof(struct mg_dns_header) + 256 + sizeof(mdns_answer) + 4];
struct mg_dns_header *h = (struct mg_dns_header *) buf;
char local_name[63 + 7]; // name label + '.' + local label + '\0'
uint8_t name_len = (uint8_t) strlen(c->fn_data);
uint8_t name_len = (uint8_t) strlen((char *)c->fn_data);
struct mg_dns_message dm;
bool unicast = (rr.aclass & MG_BIT(15)) != 0; // QU
// uint16_t q = mg_ntohs(qh->num_questions);
@@ -310,7 +310,7 @@ static void mdns_cb(struct mg_connection *c, int ev, void *ev_data) {
memcpy(local_name, c->fn_data, name_len);
strcpy(local_name + name_len, ".local"); // ensure proper name.local\0
if (strcmp(local_name, dm.name) == 0) {
char *p = &buf[sizeof(*h)];
uint8_t *p = &buf[sizeof(*h)];
memset(h, 0, sizeof(*h)); // clear header
h->txnid = unicast ? qh->txnid : 0; // RFC-6762 18.1
// RFC-6762 6: 0 questions, 1 Answer, 0 Auth, 0 Additional RRs
@@ -328,7 +328,7 @@ static void mdns_cb(struct mg_connection *c, int ev, void *ev_data) {
memcpy(p, c->data, 4), p += 4;
#endif
if (!unicast) memcpy(&c->rem, &c->loc, sizeof(c->rem));
mg_send(c, buf, p - buf); // And send it!
mg_send(c, buf, (size_t)(p - buf)); // And send it!
MG_DEBUG(("mDNS %c response sent", unicast ? 'U' : 'M'));
}
}
@@ -342,6 +342,6 @@ void mg_multicast_add(struct mg_connection *c, char *ip);
struct mg_connection *mg_mdns_listen(struct mg_mgr *mgr, char *name) {
struct mg_connection *c =
mg_listen(mgr, "udp://224.0.0.251:5353", mdns_cb, name);
if (c != NULL) mg_multicast_add(c, "224.0.0.251");
if (c != NULL) mg_multicast_add(c, (char *)"224.0.0.251");
return c;
}