Changeset 1192 for pjproject/branches/symbian/pjlib/src/pj/addr_resolv_sock.c

Timestamp:

Apr 11, 2007 7:48:42 PM (17 years ago)

Author:

bennylp

Message:

Applying ticket #220 to Symbian branch: Bug in retransmission of non-INVITE SIP requests in UAC transaction (thanks Martin Peterzon)

File:

• pjproject/branches/symbian/pjlib/src/pj/addr_resolv_sock.c (modified) (1 diff)

pjproject/branches/symbian/pjlib/src/pj/addr_resolv_sock.c

@@ -50 +50 @@
 }
 
+/* Resolve the IP address of local machine */
+PJ_DEF(pj_status_t) pj_gethostip(pj_in_addr *addr)
+{
+    const pj_str_t *hostname = pj_gethostname();
+    struct pj_hostent he;
+    pj_status_t status;
+
+
+#ifdef _MSC_VER
+    /* Get rid of "uninitialized he variable" with MS compilers */
+    pj_memset(&he, 0, sizeof(he));
+#endif
+
+    /* Try with resolving local hostname first */
+    status = pj_gethostbyname(hostname, &he);
+    if (status == PJ_SUCCESS) {
+        *addr = *(pj_in_addr*)he.h_addr;
+    }
+
+
+    /* If we end up with 127.x.x.x, resolve the IP by getting the default
+     * interface to connect to some public host.
+     */
+    if (status != PJ_SUCCESS || (pj_ntohl(addr->s_addr) >> 24)==127) {
+        pj_sock_t fd;
+        pj_str_t cp;
+        pj_sockaddr_in a;
+        int len;
+
+        status = pj_sock_socket(PJ_AF_INET, PJ_SOCK_DGRAM, 0, &fd);
+        if (status != PJ_SUCCESS) {
+            return status;
+        }
+
+        cp = pj_str("1.1.1.1");
+        pj_sockaddr_in_init(&a, &cp, 53);
+
+        status = pj_sock_connect(fd, &a, sizeof(a));
+        if (status != PJ_SUCCESS) {
+            pj_sock_close(fd);
+            /* Return 127.0.0.1 as the address */
+            return PJ_SUCCESS;
+        }
+
+        len = sizeof(a);
+        status = pj_sock_getsockname(fd, &a, &len);
+        if (status != PJ_SUCCESS) {
+            pj_sock_close(fd);
+            /* Return 127.0.0.1 as the address */
+            return PJ_SUCCESS;
+        }
+
+        pj_sock_close(fd);
+
+        *addr = a.sin_addr;
+    }
+
+    return status;
+}
+
+