Changeset 5636 for pjproject/trunk/pjlib/src/pj/sock_common.c

Timestamp:

Aug 2, 2017 2:51:59 AM (7 years ago)

Author:

ming

Message:

Fixed #2032: NAT64 support for IPv4 interoperability

File:

• pjproject/trunk/pjlib/src/pj/sock_common.c (modified) (1 diff)

pjproject/trunk/pjlib/src/pj/sock_common.c

@@ -414 +414 @@
 {
     pj_memcpy(dst, src, pj_sockaddr_get_len(src));
+}
+
+/*
+ * Synthesize address.
+ */
+PJ_DEF(pj_status_t) pj_sockaddr_synthesize(int dst_af,
+                                           pj_sockaddr_t *dst,
+                                           const pj_sockaddr_t *src)
+{
+    char ip_addr_buf[PJ_INET6_ADDRSTRLEN];
+    unsigned int count = 1;
+    pj_addrinfo ai[1];
+    pj_str_t ip_addr;
+    pj_status_t status;
+
+    /* Validate arguments */
+    PJ_ASSERT_RETURN(src && dst, PJ_EINVAL);
+
+    if (dst_af == ((const pj_sockaddr *)src)->addr.sa_family) {
+        pj_sockaddr_cp(dst, src);
+        return PJ_SUCCESS;
+    }
+
+    pj_sockaddr_print(src, ip_addr_buf, sizeof(ip_addr_buf), 0);
+    ip_addr = pj_str(ip_addr_buf);
+    
+    /* Try to synthesize address using pj_getaddrinfo(). */
+    status = pj_getaddrinfo(dst_af, &ip_addr, &count, ai); 
+    if (status == PJ_SUCCESS && count > 0) {
+        pj_sockaddr_cp(dst, &ai[0].ai_addr);
+        pj_sockaddr_set_port(dst, pj_sockaddr_get_port(src));
+    }
+    
+    return status;
 }