Fix segfault if req->main is NULL

Seen in the wild.

Closes #35

Signed-off-by: Simo Sorce <simo@redhat.com>

diff --git a/src/mod_auth_gssapi.c b/src/mod_auth_gssapi.c
index 9c9b1b2..d351777 100644 (file)
--- a/src/mod_auth_gssapi.c
+++ b/src/mod_auth_gssapi.c
@@ -323,7 +323,7 @@ static int mag_auth(request_rec *req)
     }
 
     /* implicit auth for subrequests if main auth already happened */
     }
 
     /* implicit auth for subrequests if main auth already happened */

-    if (!ap_is_initial_req(req)) {
+    if (!ap_is_initial_req(req) && req->main != NULL) {

         type = ap_auth_type(req->main);
         if ((type != NULL) && (strcasecmp(type, "GSSAPI") == 0)) {
             /* warn if the subrequest location and the main request
         type = ap_auth_type(req->main);
         if ((type != NULL) && (strcasecmp(type, "GSSAPI") == 0)) {
             /* warn if the subrequest location and the main request