check that badlisted env has = after the name

diff --git a/doas.c b/doas.c
index 8ba6c96aa63d88900b76fc638fbc078cbccaf543..b07059c84fe6f383906bc89962e98689870d8fcc 100644 (file)
--- a/doas.c
+++ b/doas.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: doas.c,v 1.11 2015/07/20 00:54:01 tedu Exp $ */
+/* $OpenBSD: doas.c,v 1.12 2015/07/20 00:57:53 tedu Exp $ */
 /*
  * Copyright (c) 2015 Ted Unangst <tedu@openbsd.org>
  *
@@ -213,7 +213,8 @@ copyenv(const char **oldenvp, struct rule *rule)
                        size_t j;
                        for (j = 0; j < nbad; j++) {
                                size_t len = strlen(badset[j]);
-                               if (strncmp(oldenvp[i], badset[j], len) == 0) {
+                               if (strncmp(oldenvp[i], badset[j], len) == 0 &&
+                                   oldenvp[i][len] == '=') {
                                        break;
                                }
                        }