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When transparent, make sure both connections use the same address family

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This commit is contained in:
Ruben van Staveren 2014-07-22 19:36:40 +02:00
parent dedb3672d7
commit 7d23a55236
1 changed files with 12 additions and 1 deletions
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13
common.c
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@ -139,11 +139,22 @@ int bind_peer(int fd, int fd_from)
* of new file descriptor. */ * of new file descriptor. */
int connect_addr(struct connection *cnx, int fd_from) int connect_addr(struct connection *cnx, int fd_from)
{ {
struct addrinfo *a; struct addrinfo *a, from;
struct sockaddr_storage ss;
char buf[NI_MAXHOST]; char buf[NI_MAXHOST];
int fd, res; int fd, res;
memset(&from, 0, sizeof(from));
from.ai_addr = (struct sockaddr*)&ss;
from.ai_addrlen = sizeof(ss);
res = getpeername(fd_from, from.ai_addr, &from.ai_addrlen);
CHECK_RES_RETURN(res, "getpeername");
for (a = cnx->proto->saddr; a; a = a->ai_next) { for (a = cnx->proto->saddr; a; a = a->ai_next) {
/* When transparent, make sure both connections use the same address family */
if (transparent && a->ai_family != from.ai_addr->sa_family)
continue;
if (verbose) if (verbose)
fprintf(stderr, "connecting to %s family %d len %d\n", fprintf(stderr, "connecting to %s family %d len %d\n",
sprintaddr(buf, sizeof(buf), a), sprintaddr(buf, sizeof(buf), a),