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#include <string.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <glib.h>
#include <udp.h>
#include <agent.h>
/* format is:
* type/ip/port
*/
NiceCandidate *
nice_candidate_from_string (const gchar *s)
{
NiceCandidateType type;
NiceCandidate *candidate;
NiceAddress *addr;
gchar *first_slash;
gchar *last_slash;
gchar tmp[128];
guint len;
guint32 ip;
guint16 port;
if (s == NULL || s[0] == '\0')
return NULL;
switch (s[0])
{
case 'H':
type = NICE_CANDIDATE_TYPE_HOST;
break;
case 'S':
type = NICE_CANDIDATE_TYPE_SERVER_REFLEXIVE;
break;
case 'P':
type = NICE_CANDIDATE_TYPE_PEER_REFLEXIVE;
break;
case 'R':
type = NICE_CANDIDATE_TYPE_RELAYED;
break;
default:
return NULL;
}
/* extract IP address */
first_slash = index (s, '/');
last_slash = rindex (s, '/');
if (first_slash == NULL ||
last_slash == NULL ||
first_slash == last_slash)
return NULL;
len = last_slash - first_slash - 1;
if (len > sizeof (tmp) - 1)
return NULL;
strncpy (tmp, first_slash + 1, len);
tmp[len] = '\0';
if (inet_pton (AF_INET, tmp, &ip) < 1)
return NULL;
/* extract port */
port = strtol (last_slash + 1, NULL, 10);
candidate = nice_candidate_new (type);
addr = nice_address_new ();
nice_address_set_ipv4 (addr, ntohl (ip));
candidate->addr = *addr;
candidate->port = port;
return candidate;
}
gchar *
nice_candidate_to_string (NiceCandidate *candidate)
{
gchar *addr_tmp;
gchar *ret;
gchar type;
switch (candidate->type)
{
case NICE_CANDIDATE_TYPE_HOST:
type = 'H';
break;
case NICE_CANDIDATE_TYPE_SERVER_REFLEXIVE:
type = 'S';
break;
case NICE_CANDIDATE_TYPE_PEER_REFLEXIVE:
type = 'P';
break;
case NICE_CANDIDATE_TYPE_RELAYED:
type = 'R';
break;
default:
return NULL;
}
addr_tmp = nice_address_to_string (&(candidate->addr));
ret = g_strdup_printf ("%c/%s/%d", type, addr_tmp, candidate->port);
g_free (addr_tmp);
return ret;
}
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