IPV6_V6ONLY set by default on win32

[deb_shairplay.git] / src / lib / netutils.c

diff --git a/src/lib/netutils.c b/src/lib/netutils.c
index 255822bb436f9cd7f0cf35494c701370acc477cc..3fc8838547aeb6857591eb95849f30737a5cd9c8 100644 (file)
--- a/src/lib/netutils.c
+++ b/src/lib/netutils.c
@@ -1,3 +1,17 @@
+/**
+ *  Copyright (C) 2011-2012  Juho Vähä-Herttua
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ */
+
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
@@ -57,12 +71,19 @@ netutils_init_socket(unsigned short *port, int use_ipv6, int use_udp)
        memset(&saddr, 0, sizeof(saddr));
        if (use_ipv6) {
                struct sockaddr_in6 *sin6ptr = (struct sockaddr_in6 *)&saddr;
+               int v6only = 1;
 
                /* Initialize sockaddr for bind */
                sin6ptr->sin6_family = family;
                sin6ptr->sin6_addr = in6addr_any;
                sin6ptr->sin6_port = htons(*port);
 
+#ifndef WIN32
+               /* Make sure we only listen to IPv6 addresses */
+               setsockopt(server_fd, IPPROTO_IPV6, IPV6_V6ONLY,
+                          (char *) &v6only, sizeof(v6only));
+#endif
+
                socklen = sizeof(*sin6ptr);
                ret = bind(server_fd, (struct sockaddr *)sin6ptr, socklen);
                if (ret == -1) {
@@ -137,3 +158,39 @@ netutils_get_address(void *sockaddr, int *length)
        return NULL;
 }
 
+int
+netutils_parse_address(int family, const char *src, void *dst, int dstlen)
+{
+       struct addrinfo *result;
+       struct addrinfo *ptr;
+       struct addrinfo hints;
+       int length;
+       int ret;
+
+       if (family != AF_INET && family != AF_INET6) {
+               return -1;
+       }
+       if (!src || !dst) {
+               return -1;
+       }
+
+       memset(&hints, 0, sizeof(hints));
+       hints.ai_family = family;
+       hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
+
+       ret = getaddrinfo(src, NULL, &hints, &result);
+       if (ret != 0) {
+               return -1;
+       }
+
+       length = -1;
+       for (ptr=result; ptr!=NULL; ptr=ptr->ai_next) {
+               if (family == ptr->ai_family && (unsigned int)dstlen >= ptr->ai_addrlen) {
+                       memcpy(dst, ptr->ai_addr, ptr->ai_addrlen);
+                       length = ptr->ai_addrlen;
+                       break;
+               }
+       }
+       freeaddrinfo(result);
+       return length;
+}