Changeset 1585 for pjproject/trunk/pjlib/src/pj/addr_resolv_sock.c

Timestamp:

Nov 18, 2007 2:53:47 PM (17 years ago)

Author:

bennylp

Message:

Ticket #415: implement IPv6 support in PJLIB

File:

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

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

@@ -116 +116 @@
 
 
+/* Resolve IPv4/IPv6 address */
+PJ_DEF(pj_status_t) pj_getaddrinfo(const pj_str_t *nodename, int af,
+                                   unsigned *count, pj_addrinfo ai[])
+{
+#if defined(PJ_SOCK_HAS_GETADDRINFO) && PJ_SOCK_HAS_GETADDRINFO!=0
+    char nodecopy[PJ_MAX_HOSTNAME];
+    struct addrinfo hint, *res;
+    unsigned i;
+    int rc;
+
+    PJ_ASSERT_RETURN(nodename && count && *count && ai, PJ_EINVAL);
+    PJ_ASSERT_RETURN(nodename->ptr && nodename->slen, PJ_EINVAL);
+    PJ_ASSERT_RETURN(af==PJ_AF_INET || af==PJ_AF_INET6, PJ_EINVAL);
+
+    /* Copy node name to null terminated string. */
+    if (nodename->slen >= PJ_MAX_HOSTNAME)
+        return PJ_ENAMETOOLONG;
+    pj_memcpy(nodecopy, nodename->ptr, nodename->slen);
+    nodecopy[nodename->slen] = '\0';
+
+    /* Call getaddrinfo() */
+    pj_bzero(&hint, sizeof(hint));
+    hint.ai_family = af;
+
+    rc = getaddrinfo(nodecopy, NULL, &hint, &res);
+    if (rc != 0)
+        return PJ_ERESOLVE;
+
+    /* Enumerate each item in the result */
+    for (i=0; i<*count && res; res=res->ai_next) {
+        int len;
+
+        /* Ignore unwanted address families */
+        if (af!=PJ_AF_UNSPEC && res->ai_family != af)
+            continue;
+
+        /* Ignore name that's too long */
+        len = pj_ansi_strlen(res->ai_canonname);
+        if (len >= PJ_MAX_HOSTNAME)
+            continue;
+
+        /* Store canonical name */
+        pj_ansi_strcpy(ai[i].ai_canonname, res->ai_canonname);
+
+        /* Store address */
+        PJ_ASSERT_ON_FAIL(res->ai_addrlen <= sizeof(pj_sockaddr), continue);
+        pj_memcpy(&ai[i].ai_addr, res->ai_addr, res->ai_addrlen);
+
+        /* Next slot */
+        ++i;
+    }
+
+    *count = i;
+
+    /* Done */
+    return PJ_SUCCESS;
+
+#else   /* PJ_SOCK_HAS_GETADDRINFO */
+    /* IPv6 is not supported */
+    PJ_UNUSED_ARG(nodename);
+    PJ_UNUSED_ARG(af);
+    PJ_UNUSED_ARG(ai);
+
+    PJ_ASSERT_RETURN(count, PJ_EINVAL);
+    *count = 0;
+
+    return PJ_EIPV6NOTSUP;
+#endif  /* PJ_SOCK_HAS_GETADDRINFO */
+}
+