nsswitch: make the wbcSidsToUnixIds() parser more robust

this allows it to handle new types of responses

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

diff --git a/nsswitch/libwbclient/wbc_idmap.c b/nsswitch/libwbclient/wbc_idmap.c
index ad3cfe67709adcc5cca120c5dc66030d76bb3a59..5325dbe5ce531680afc23e3f1c53be9d6847e1f2 100644 (file)
--- a/nsswitch/libwbclient/wbc_idmap.c
+++ b/nsswitch/libwbclient/wbc_idmap.c
@@ -372,10 +372,10 @@ wbcErr wbcSidsToUnixIds(const struct wbcDomainSid *sids, uint32_t num_sids,
                        break;
                default:
                        id->type = WBC_ID_TYPE_NOT_SPECIFIED;
-                       q = p;
+                       q = strchr(p, '\n');
                        break;
                };
-               if (q[0] != '\n') {
+               if (q == NULL || q[0] != '\n') {
                        goto wbc_err_invalid;
                }
                p = q+1;