diff options
| author | Max Kellermann <max@duempel.org> | 2009-02-28 15:20:33 +0100 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2009-02-28 15:20:33 +0100 |
| commit | e085deb9444bc049401a4296c3e7ad87659a663a (patch) | |
| tree | 84c38666a068be56059f964badc0b69ea6f4e444 /src/socket_util.c | |
| parent | b55d9fcdb8a4ad0164f34f45d523bf165bcb496d (diff) | |
socket_util: unpack V4MAPPED addresses
Unpack IPv4 addresses which are packed inside an IPv6 address,
i.e. return "127.0.0.1" rather than "::ffff:127.0.0.1".
Diffstat (limited to 'src/socket_util.c')
| -rw-r--r-- | src/socket_util.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/socket_util.c b/src/socket_util.c index 240577fc..31b65632 100644 --- a/src/socket_util.c +++ b/src/socket_util.c @@ -29,9 +29,29 @@ char * sockaddr_to_string(const struct sockaddr *sa, size_t length, GError **error) { +#ifdef HAVE_IPV6 + const struct sockaddr_in6 *a6 = (const struct sockaddr_in6 *)sa; + struct sockaddr_in a4; +#endif int ret; char host[NI_MAXHOST], serv[NI_MAXSERV]; +#ifdef HAVE_IPV6 + if (sa->sa_family == AF_INET6 && + IN6_IS_ADDR_V4MAPPED(&a6->sin6_addr)) { + /* convert "::ffff:127.0.0.1" to "127.0.0.1" */ + + memset(&a4, 0, sizeof(a4)); + a4.sin_family = AF_INET; + memcpy(&a4.sin_addr, ((const char *)&a6->sin6_addr) + 12, + sizeof(a4.sin_addr)); + a4.sin_port = a6->sin6_port; + + sa = (const struct sockaddr *)&a4; + length = sizeof(a4); + } +#endif + ret = getnameinfo(sa, length, host, sizeof(host), serv, sizeof(serv), NI_NUMERICHOST|NI_NUMERICSERV); if (ret != 0) { |