Fix crash, log and accept message when reported server address is NUL…

…L ( unknown ) fix segfault when server address is unknown
jcbf · Nov 3, 2016 · db7c047 · db7c047
2 parents df2f153 + 8ff33fe
commit db7c047
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/smf-spf.c b/smf-spf.c
@@ -637,6 +637,13 @@ static sfsistat smf_connect(SMFICTX *ctx, char *name, _SOCK_ADDR *sa) {
             return SMFIS_ACCEPT;
         }
     }
+
+    if (sa == NULL)
+    {
+        syslog(LOG_NOTICE, "unknown sender IP address, skipping SPF check");
+        return SMFIS_ACCEPT;
+    }
+
     strscpy(host, "undefined", sizeof(host) - 1);
     switch (sa->sa_family) {
 	case AF_INET: {