char *silc_net_localhost(void)
{
char hostname[256], ip_addr[64];
if (gethostname(hostname, sizeof(hostname)))
return NULL;
if (!silc_net_gethostbyname(hostname, TRUE, ip_addr, sizeof(ip_addr)))
return strdup(hostname);
silc_net_gethostbyaddr(ip_addr, hostname, sizeof(hostname));
return strdup(hostname);
}
static void *silc_net_gethostbyaddr_thread(void *context)
{
SilcNetResolveContext r = (SilcNetResolveContext)context;
SilcSchedule schedule = r->schedule;
char tmp[256];
if (silc_net_gethostbyaddr(r->input, tmp, sizeof(tmp)))
r->result = strdup(tmp);
silc_schedule_task_add(schedule, 0, silc_net_resolve_completion, r, 0, 1,
SILC_TASK_TIMEOUT);
silc_schedule_wakeup(schedule);
return NULL;
}
SilcBool silc_net_check_local_by_sock(SilcSocket sock, char **hostname,
char **ip)
{
SilcSymbianSocket *s = (SilcSymbianSocket *)sock;
TInetAddr addr;
char host[256];
TBuf<64> tmp;
if (hostname)
*hostname = NULL;
*ip = NULL;
s->sock->LocalName(addr);
addr.Output(tmp);
*ip = (char *)silc_memdup(tmp.Ptr(), tmp.Length());
if (*ip == NULL)
return FALSE;
/* Do reverse lookup if we want hostname too. */
if (hostname) {
/* Get host by address */
if (!silc_net_gethostbyaddr(*ip, host, sizeof(host)))
return FALSE;
*hostname = (char *)silc_memdup(host, strlen(host));
SILC_LOG_DEBUG(("Resolved hostname `%s'", *hostname));
/* Reverse */
if (!silc_net_gethostbyname(*hostname, TRUE, host, sizeof(host)))
return FALSE;
if (strcmp(*ip, host))
return FALSE;
}
SILC_LOG_DEBUG(("Resolved IP address `%s'", *ip));
return TRUE;
}
SilcBool silc_net_check_local_by_sock(SilcSocket sock, char **hostname,
char **ip)
{
char host[1024];
int rval, len;
#ifdef HAVE_IPV6
struct sockaddr_storage local;
char s[NI_MAXHOST];
if (hostname)
*hostname = NULL;
*ip = NULL;
SILC_LOG_DEBUG(("Resolving local hostname and IP address"));
memset(&local, 0, sizeof(local));
memset(&s, 0, sizeof(s));
len = sizeof(local);
rval = getsockname(sock, (struct sockaddr *)&local, &len);
if (rval < 0)
return FALSE;
if (getnameinfo((struct sockaddr *)&local, len, s, sizeof(s), NULL, 0,
NI_NUMERICHOST))
return FALSE;
*ip = silc_memdup(s, strlen(s));
if (*ip == NULL)
return FALSE;
#else
struct sockaddr_in local;
char *host_ip;
if (hostname)
*hostname = NULL;
*ip = NULL;
SILC_LOG_DEBUG(("Resolving local hostname and IP address"));
memset(&local, 0, sizeof(local));
len = sizeof(local);
rval = getsockname(sock, (struct sockaddr *)&local, &len);
if (rval < 0)
return FALSE;
host_ip = inet_ntoa(local.sin_addr);
if (!host_ip)
return FALSE;
*ip = silc_memdup(host_ip, strlen(host_ip));
if (*ip == NULL)
return FALSE;
#endif
/* Do reverse lookup if we want hostname too. */
if (hostname) {
/* Get host by address */
if (!silc_net_gethostbyaddr(*ip, host, sizeof(host)))
return FALSE;
*hostname = silc_memdup(host, strlen(host));
SILC_LOG_DEBUG(("Resolved hostname `%s'", *hostname));
/* Reverse */
if (!silc_net_gethostbyname(*hostname, TRUE, host, sizeof(host)))
return FALSE;
if (strcmp(*ip, host))
return FALSE;
}
SILC_LOG_DEBUG(("Resolved IP address `%s'", *ip));
return TRUE;
}
