diff options
Diffstat (limited to 'pjsip/src/pjsip/sip_resolve.c')
| -rw-r--r-- | pjsip/src/pjsip/sip_resolve.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/pjsip/src/pjsip/sip_resolve.c b/pjsip/src/pjsip/sip_resolve.c new file mode 100644 index 00000000..f62f965f --- /dev/null +++ b/pjsip/src/pjsip/sip_resolve.c @@ -0,0 +1,106 @@ +/* $Header: /pjproject-0.3/pjsip/src/pjsip/sip_resolve.c 5 10/14/05 12:23a Bennylp $ */
+
+#include <pjsip/sip_resolve.h>
+#include <pjsip/sip_transport.h>
+#include <pj/pool.h>
+#include <ctype.h>
+
+struct pjsip_resolver_t
+{
+ void *dummy;
+};
+
+PJ_DEF(pjsip_resolver_t*) pjsip_resolver_create(pj_pool_t *pool)
+{
+ pjsip_resolver_t *resolver;
+ resolver = (pjsip_resolver_t*) pj_pool_calloc(pool, 1, sizeof(*resolver));
+ return resolver;
+}
+
+PJ_DEF(void) pjsip_resolver_destroy(pjsip_resolver_t *resolver)
+{
+ PJ_UNUSED_ARG(resolver)
+}
+
+static int is_str_ip(const pj_str_t *host)
+{
+ const char *p = host->ptr;
+ const char *end = ((const char*)host->ptr) + host->slen;
+
+ while (p != end) {
+ if (isdigit(*p) || *p=='.') {
+ ++p;
+ } else {
+ return 0;
+ }
+ }
+ return 1;
+}
+
+PJ_DEF(void) pjsip_resolve( pjsip_resolver_t *resolver,
+ pj_pool_t *pool,
+ pjsip_host_port *target,
+ void *token,
+ pjsip_resolver_callback *cb)
+{
+ struct pjsip_server_addresses svr_addr;
+ pj_status_t status;
+ int is_ip_addr;
+ pjsip_transport_type_e type = target->type;
+
+ PJ_UNUSED_ARG(resolver)
+ PJ_UNUSED_ARG(pool)
+
+ /* We only do synchronous resolving at this moment. */
+ PJ_TODO(SUPPORT_RFC3263_SERVER_RESOLUTION)
+
+ /* Is it IP address or hostname?. */
+ is_ip_addr = is_str_ip(&target->host);
+
+ /* Set the transport type if not explicitly specified.
+ * RFC 3263 section 4.1 specify rules to set up this.
+ */
+ if (type == PJSIP_TRANSPORT_UNSPECIFIED) {
+ if (is_ip_addr || (target->port != 0)) {
+#if PJ_HAS_TCP
+ if (target->flag & PJSIP_TRANSPORT_SECURE)
+ {
+ type = PJSIP_TRANSPORT_TLS;
+ } else if (target->flag & PJSIP_TRANSPORT_RELIABLE)
+ {
+ type = PJSIP_TRANSPORT_TCP;
+ } else
+#endif
+ {
+ type = PJSIP_TRANSPORT_UDP;
+ }
+ } else {
+ /* No type or explicit port is specified, and the address is
+ * not IP address.
+ * In this case, full resolution must be performed.
+ * But we don't support it (yet).
+ */
+ type = PJSIP_TRANSPORT_UDP;
+ }
+
+ }
+
+ /* Set the port number if not specified. */
+ if (target->port == 0) {
+ target->port = pjsip_transport_get_default_port_for_type(type);
+ }
+
+ /* Resolve hostname. */
+ if (!is_ip_addr) {
+ status = pj_sockaddr_init(&svr_addr.entry[0].addr, &target->host, target->port);
+ } else {
+ status = pj_sockaddr_init(&svr_addr.entry[0].addr, &target->host, target->port);
+ pj_assert(status == PJ_SUCCESS);
+ }
+
+ /* Call the callback. */
+ svr_addr.count = (status == PJ_SUCCESS) ? 1 : 0;
+ svr_addr.entry[0].type = type;
+ (*cb)(status, token, &svr_addr);
+}
+
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