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net_gethostbyaddr() was pretty much broken.

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git-svn-id: http://svn.irssi.org/repos/irssi/trunk@3031 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen 2002-11-28 23:43:42 +00:00 committed by cras
parent ed444e1c5f
commit b669dfaaaa
1 changed files with 11 additions and 13 deletions
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24
src/core/network.c
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@ -466,33 +466,31 @@ int net_gethostbyname(const char *addr, IPADDR *ip4, IPADDR *ip6)
int net_gethostbyaddr(IPADDR *ip, char **name)
{
#ifdef HAVE_IPV6
struct addrinfo req, *ai;
union sockaddr_union so;
int host_error;
char hostname[NI_MAXHOST];
#else
struct hostent *hp;
#endif
char ipname[MAX_IP_LEN];
g_return_val_if_fail(ip != NULL, -1);
g_return_val_if_fail(name != NULL, -1);
net_ip2host(ip, ipname);
*name = NULL;
#ifdef HAVE_IPV6
memset(&req, 0, sizeof(struct addrinfo));
req.ai_socktype = SOCK_STREAM;
req.ai_flags = AI_CANONNAME;
memset(&so, 0, sizeof(so));
sin_set_ip(&so, ip);
/* save error to host_error for later use */
host_error = getaddrinfo(ipname, NULL, &req, &ai);
if (host_error != 0)
return host_error;
*name = g_strdup(ai->ai_canonname);
host_error = getnameinfo((struct sockaddr *) &so, sizeof(so),
hostname, sizeof(hostname), NULL, 0, 0);
if (host_error != 0)
return host_error;
freeaddrinfo(ai);
*name = g_strdup(hostname);
#else
hp = gethostbyaddr(ipname, strlen(ipname), AF_INET);
if (ip->family != AF_INET) return -1;
hp = gethostbyaddr(&ip->ip, 4, AF_INET);
if (hp == NULL) return -1;
*name = g_strdup(hp->h_name);