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Added more debugging statements.

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This commit is contained in:
Darell Tan 2012-10-17 21:31:36 +08:00
parent c4993739f5
commit c821cdcbe4
3 changed files with 22 additions and 1 deletions
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13
mdns.c
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@ -246,6 +246,19 @@ static uint8_t *uncompress_nlabel(uint8_t *pkt_buf, size_t pkt_len, size_t off)
// ----- RR list & group functions -----
const char *rr_get_type_name(enum rr_type type) {
switch (type) {
case RR_A: return "A";
case RR_PTR: return "PTR";
case RR_TXT: return "TXT";
case RR_AAAA: return "AAAA";
case RR_SRV: return "SRV";
case RR_NSEC: return "NSEC";
case RR_ANY: return "ANY";
}
return NULL;
}
void rr_entry_destroy(struct rr_entry *rr) {
struct rr_data_txt *txt_rec;
assert(rr);

2
mdns.h
View File

@ -173,6 +173,8 @@ struct rr_entry *rr_create(uint8_t *name, enum rr_type type);
void rr_set_nsec(struct rr_entry *rr_nsec, enum rr_type type);
void rr_add_txt(struct rr_entry *rr_txt, const char *txt);
const char *rr_get_type_name(enum rr_type type);
uint8_t *create_label(const char *txt);
uint8_t *create_nlabel(const char *name);
char *nlabel_to_str(const uint8_t *name);

8
mdnsd.c
View File

@ -261,7 +261,7 @@ static int process_mdns_pkt(struct mdnsd *svr, struct mdns_pkt *pkt, struct mdns
int num_ans_added = 0;
char *namestr = nlabel_to_str(qn->name);
DEBUG_PRINTF("qn #%d: type 0x%02x %s - ", i, qn->type, namestr);
DEBUG_PRINTF("qn #%d: type %s (%02x) %s - ", i, rr_get_type_name(qn->type), qn->type, namestr);
free(namestr);
// check if it's a unicast query - we ignore those
@ -282,6 +282,10 @@ static int process_mdns_pkt(struct mdnsd *svr, struct mdns_pkt *pkt, struct mdns
struct rr_list *next_ans = ans->next;
if (rr_entry_match(pkt->rr_ans, ans->e)) {
char *namestr = nlabel_to_str(ans->e->name);
DEBUG_PRINTF("removing answer for %s\n", namestr);
free(namestr);
// check if list item is head
if (prev_ans == NULL)
reply->rr_ans = ans->next;
@ -354,6 +358,8 @@ static void main_loop(struct mdnsd *svr) {
if (process_mdns_pkt(svr, mdns, mdns_reply)) {
size_t replylen = mdns_encode_pkt(mdns_reply, pkt_buffer, PACKET_SIZE);
send_packet(svr->sockfd, pkt_buffer, replylen);
} else if (mdns->num_qn == 0) {
DEBUG_PRINTF("(no questions in packet)\n\n");
}
mdns_pkt_destroy(mdns);