+/*
+ * Return 1 if one of user's groups matches group_pattern list.
+ * Return 0 on negated or no match.
+ */
+int
+ga_match_pattern_list(const char *group_pattern)
+{
+ int i, found = 0;
+ size_t len = strlen(group_pattern);
+
+ for (i = 0; i < ngroups; i++) {
+ switch (match_pattern_list(groups_byname[i],
+ group_pattern, len, 0)) {
+ case -1:
+ return 0; /* Negated match wins */
+ case 0:
+ continue;
+ case 1:
+ found = 1;
+ }
+ }
+ return found;
+}
+