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Diffstat (limited to 'common/smtppass.c')
-rw-r--r--common/smtppass.c46
1 files changed, 27 insertions, 19 deletions
diff --git a/common/smtppass.c b/common/smtppass.c
index a783bac..96fe0b1 100644
--- a/common/smtppass.c
+++ b/common/smtppass.c
@@ -767,30 +767,38 @@ static int make_connections(spctx_t* ctx, int client)
outaddr = &addr;
}
- /* No transparent proxy but check for loopback option */
- else
+ /* Check for loopback option */
+ else if(SANY_TYPE(*outaddr) == AF_INET &&
+ outaddr->s.in.sin_addr.s_addr == 0)
{
- if(SANY_TYPE(*outaddr) == AF_INET &&
- outaddr->s.in.sin_addr.s_addr == 0)
- {
- /* Use the incoming IP as the default */
- memcpy(&addr, &(g_state.outaddr), sizeof(addr));
- memcpy(&(addr.s.in.sin_addr), &(peeraddr.s.in.sin_addr), sizeof(addr.s.in.sin_addr));
- outaddr = &addr;
- }
+ /* Use the incoming IP as the default */
+ memcpy(&addr, &(g_state.outaddr), sizeof(addr));
+ memcpy(&(addr.s.in.sin_addr), &(peeraddr.s.in.sin_addr), sizeof(addr.s.in.sin_addr));
+ outaddr = &addr;
+ }
#ifdef HAVE_INET6
- else if(SANY_TYPE(*outaddr) == AF_INET6 &&
- outaddr->s.in.in6.sin_addr.s_addr == 0)
- {
- /* Use the incoming IP as the default */
- memcpy(&addr, &(g_state.outaddr), sizeof(addr));
- memcpy(&(addr.s.in.sin6_addr), &(peeraddr.s.in.sin6_addr), sizeof(addr.s.in.sin6_addr));
- outaddr = &addr;
- }
+ /* IPv6 loopback? */
+ else if(SANY_TYPE(*outaddr) == AF_INET6 &&
+ outaddr->s.in.in6.sin_addr.s_addr == 0)
+ {
+ /* Use the incoming IP as the default */
+ memcpy(&addr, &(g_state.outaddr), sizeof(addr));
+ memcpy(&(addr.s.in.sin6_addr), &(peeraddr.s.in.sin6_addr), sizeof(addr.s.in.sin6_addr));
+ outaddr = &addr;
+ }
#endif
+
+ /* Not transparent proxy or loopback */
+ else
+ {
+ /* Resolve any DNS name again */
+ if(sock_any_pton(g_state.outname, &addr, SANY_OPT_DEFPORT(25)) != -1)
+ memcpy(&(g_state.outaddr), &addr, sizeof(g_state.outaddr));
+ else
+ sp_messagex(ctx, LOG_WARNING, "couldn't resolve " CFG_OUTADDR ": %s", g_state.outname);
}
- /* Reparse name if possible */
+ /* Reparse name if needed */
if(outaddr != &(g_state.outaddr))
{
if(sock_any_ntop(outaddr, buf, MAXPATHLEN, 0) != -1)