int main(){
int i, k;
AVSHA1 ctx;
unsigned char digest[20];
for(k=0; k<3; k++){
av_sha1_init(&ctx);
if(k==0)
av_sha1_update(&ctx, "abc", 3);
else if(k==1)
av_sha1_update(&ctx, "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 56);
else
for(i=0; i<1000*1000; i++)
av_sha1_update(&ctx, "a", 1);
av_sha1_final(&ctx, digest);
for (i = 0; i < 20; i++)
printf("%02X", digest[i]);
putchar('\n');
}
//Test Vectors (from FIPS PUB 180-1)
printf("A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D\n"
"84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1\n"
"34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F\n");
return 0;
}
static htsmsg_t *
htsp_reqreply(htsp_connection_t *hc, htsmsg_t *m)
{
void *buf;
size_t len;
uint32_t seq;
int r;
tcpcon_t *tc = hc->hc_tc;
uint32_t noaccess;
htsmsg_t *reply;
htsp_msg_t *hm = NULL;
int retry = 0;
char id[100];
char *username;
char *password;
struct AVSHA1 *shactx = alloca(av_sha1_size);
uint8_t d[20];
if(tc == NULL)
return NULL;
/* Generate a sequence number for our message */
seq = atomic_add(&hc->hc_seq_generator, 1);
htsmsg_add_u32(m, "seq", seq);
again:
snprintf(id, sizeof(id), "htsp://%s:%d", hc->hc_hostname, hc->hc_port);
r = keyring_lookup(id, &username, &password, NULL, !!retry,
"TV client", "Access denied");
if(r == -1) {
/* User rejected */
return NULL;
}
if(r == 0) {
/* Got auth credentials */
htsmsg_delete_field(m, "username");
htsmsg_delete_field(m, "digest");
if(username != NULL)
htsmsg_add_str(m, "username", username);
if(password != NULL) {
av_sha1_init(shactx);
av_sha1_update(shactx, (const uint8_t *)password, strlen(password));
av_sha1_update(shactx, hc->hc_challenge, 32);
av_sha1_final(shactx, d);
htsmsg_add_bin(m, "digest", d, 20);
}
free(username);
free(password);
}
if(htsmsg_binary_serialize(m, &buf, &len, -1) < 0) {
htsmsg_destroy(m);
return NULL;
}
if(hc->hc_is_async) {
/* Async, set up a struct that will be signalled when we get a reply */
hm = malloc(sizeof(htsp_msg_t));
hm->hm_msg = NULL;
hm->hm_seq = seq;
hm->hm_error = 0;
hts_mutex_lock(&hc->hc_rpc_mutex);
TAILQ_INSERT_TAIL(&hc->hc_rpc_queue, hm, hm_link);
hts_mutex_unlock(&hc->hc_rpc_mutex);
}
if(tc->write(tc, buf, len)) {
free(buf);
htsmsg_destroy(m);
if(hm != NULL) {
hts_mutex_lock(&hc->hc_rpc_mutex);
TAILQ_REMOVE(&hc->hc_rpc_queue, hm, hm_link);
hts_mutex_unlock(&hc->hc_rpc_mutex);
free(hm);
}
return NULL;
}
free(buf);
if(hm != NULL) {
hts_mutex_lock(&hc->hc_rpc_mutex);
while(1) {
if(hm->hm_error != 0) {
r = hm->hm_error;
TAILQ_REMOVE(&hc->hc_rpc_queue, hm, hm_link);
hts_mutex_unlock(&hc->hc_rpc_mutex);
free(hm);
htsmsg_destroy(m);
return NULL;
}
if(hm->hm_msg != NULL)
break;
hts_cond_wait(&hc->hc_rpc_cond, &hc->hc_rpc_mutex);
}
TAILQ_REMOVE(&hc->hc_rpc_queue, hm, hm_link);
hts_mutex_unlock(&hc->hc_rpc_mutex);
reply = hm->hm_msg;
free(hm);
} else {
if((reply = htsp_recv(hc)) == NULL) {
htsmsg_destroy(m);
return NULL;
}
}
if(!htsmsg_get_u32(reply, "noaccess", &noaccess) && noaccess) {
retry++;
goto again;
}
htsmsg_destroy(m); /* Destroy original message */
return reply;
}
