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exit dns threads with pthread_exit

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This commit is contained in:
Jfreegman 2014-06-17 19:32:02 -04:00
parent b24325d879
commit bc51714148
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GPG Key ID: 3627F3144076AE63
1 changed files with 11 additions and 19 deletions
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30
src/dns.c
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@ -83,12 +83,13 @@ static int dns_error(ToxWindow *self, uint8_t *errmsg)
return -1;
}
static int cleanup_dns_thread(void *dns_obj)
static void kill_dns_thread(void *dns_obj)
{
if (dns_obj)
tox_dns3_kill(dns_obj);
memset(&t_data, 0, sizeof(struct _thread_data));
pthread_exit(0);
}
/* puts TXT from dns response in buf. Returns length of TXT on success, -1 on fail.*/
@ -190,8 +191,7 @@ void *dns3_lookup_thread(void *data)
if (namelen == -1) {
dns_error(self, "Must be a Tox key or an address in the form username@domain");
cleanup_dns_thread(NULL);
return;
kill_dns_thread(NULL);
}
/* get domain name/pub key */
@ -208,16 +208,14 @@ void *dns3_lookup_thread(void *data)
if (domname == NULL) {
dns_error(self, "Domain not found.");
cleanup_dns_thread(NULL);
return;
kill_dns_thread(NULL);
}
void *dns_obj = tox_dns3_new(DNS_pubkey);
if (dns_obj == NULL) {
dns_error(self, "Core failed to create DNS object.");
cleanup_dns_thread(NULL);
return;
kill_dns_thread(NULL);
}
uint8_t string[MAX_DNS_REQST_SIZE];
@ -227,8 +225,7 @@ void *dns3_lookup_thread(void *data)
if (str_len == -1) {
dns_error(self, "Core failed to generate dns3 string.");
cleanup_dns_thread(dns_obj);
return;
kill_dns_thread(dns_obj);
}
string[str_len] = '\0';
@ -242,16 +239,14 @@ void *dns3_lookup_thread(void *data)
if (ans_len <= 0) {
dns_error(self, "Query failed.");
cleanup_dns_thread(dns_obj);
return;
kill_dns_thread(dns_obj);
}
uint8_t ans_id[MAX_DNS_REQST_SIZE];
/* extract TXT from DNS response */
if (parse_dns_response(self, answer, ans_len, ans_id) == -1) {
cleanup_dns_thread(dns_obj);
return;
kill_dns_thread(dns_obj);
}
uint8_t encrypted_id[MAX_DNS_REQST_SIZE];
@ -260,24 +255,21 @@ void *dns3_lookup_thread(void *data)
/* extract the encrypted ID from TXT response */
if (strncmp(ans_id, TOX_DNS3_TXT_PREFIX, prfx_len) != 0) {
dns_error(self, "Bad dns3 TXT response.");
cleanup_dns_thread(dns_obj);
return;
kill_dns_thread(dns_obj);
}
memcpy(encrypted_id, ans_id + prfx_len, ans_len - prfx_len);
if (tox_decrypt_dns3_TXT(dns_obj, t_data.id_bin, encrypted_id, strlen(encrypted_id), request_id) == -1) {
dns_error(self, "Core failed to decrypt response.");
cleanup_dns_thread(dns_obj);
return;
kill_dns_thread(dns_obj);
}
pthread_mutex_lock(&dns_thread.lock);
cmd_add_helper(self, t_data.m, t_data.id_bin, t_data.msg);
pthread_mutex_unlock(&dns_thread.lock);
cleanup_dns_thread(dns_obj);
return;
kill_dns_thread(dns_obj);
}
/* creates new thread for dns3 lookup. Only allows one lookup at a time. */