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Fix IPv6 address checks

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- SOCK_cmpaddr returned inverted truth for IPv6 addresses.
  This would prevent making a connection.
- Account for IPv6 address resolution. (bug: 5a627482)
This commit is contained in:
James R 2021-08-31 19:00:05 -07:00
parent cf30fd1bd7
commit a1a58143ec
1 changed files with 14 additions and 6 deletions
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14
src/i_tcp.c
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@ -427,7 +427,7 @@ static boolean SOCK_cmpaddr(mysockaddr_t *a, mysockaddr_t *b, UINT8 mask)
&& (b->ip4.sin_port == 0 || (a->ip4.sin_port == b->ip4.sin_port)); && (b->ip4.sin_port == 0 || (a->ip4.sin_port == b->ip4.sin_port));
#ifdef HAVE_IPV6 #ifdef HAVE_IPV6
else if (b->any.sa_family == AF_INET6) else if (b->any.sa_family == AF_INET6)
return memcmp(&a->ip6.sin6_addr, &b->ip6.sin6_addr, sizeof(b->ip6.sin6_addr)) return !memcmp(&a->ip6.sin6_addr, &b->ip6.sin6_addr, sizeof(b->ip6.sin6_addr))
&& (b->ip6.sin6_port == 0 || (a->ip6.sin6_port == b->ip6.sin6_port)); && (b->ip6.sin6_port == 0 || (a->ip6.sin6_port == b->ip6.sin6_port));
#endif #endif
else else
@ -1156,6 +1156,7 @@ static SINT8 SOCK_NetMakeNodewPort(const char *address, const char *port)
SINT8 newnode = -1; SINT8 newnode = -1;
struct my_addrinfo *ai = NULL, *runp, hints; struct my_addrinfo *ai = NULL, *runp, hints;
int gaie; int gaie;
size_t i;
if (!port || !port[0]) if (!port || !port[0])
port = DEFAULTPORT; port = DEFAULTPORT;
@ -1183,13 +1184,20 @@ static SINT8 SOCK_NetMakeNodewPort(const char *address, const char *port)
while (runp != NULL) while (runp != NULL)
{ {
// find ip of the server // test ip address of server
if (sendto(mysockets[0], NULL, 0, 0, runp->ai_addr, runp->ai_addrlen) == 0) for (i = 0; i < mysocketses; ++i)
{
if (runp->ai_addr->sa_family == myfamily[i])
{ {
memcpy(&clientaddress[newnode], runp->ai_addr, runp->ai_addrlen); memcpy(&clientaddress[newnode], runp->ai_addr, runp->ai_addrlen);
break; break;
} }
}
if (i < mysocketses)
runp = runp->ai_next; runp = runp->ai_next;
else
break;
} }
I_freeaddrinfo(ai); I_freeaddrinfo(ai);
return newnode; return newnode;