upstream commit

fix execv arguments in a way less likely to cause grief
 for -portable; ok dtucker@

Upstream-ID: 5902bf0ea0371f39f1300698dc3b8e4105fc0fc5

1 files changed, 7 insertions, 2 deletions

diff --git a/readconf.c b/readconf.c
index acfe97e9d..c062433ce 100644
--- a/readconf.c
+++ b/readconf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: readconf.c,v 1.244 2015/10/27 00:49:53 djm Exp $ */
+/* $OpenBSD: readconf.c,v 1.245 2015/10/27 08:54:52 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -458,7 +458,7 @@ execute_in_shell(const char *cmd)
 
         /* Fork and execute the command. */
         if ((pid = fork()) == 0) {
-                char *argv[] = { shell, "-c", xstrdup(cmd), NULL };
+                char *argv[4];
 
                 /* Child.  Permanently give up superuser privileges. */
                 permanently_drop_suid(original_real_uid);
@@ -472,6 +472,11 @@ execute_in_shell(const char *cmd)
                         close(devnull);
                 closefrom(STDERR_FILENO + 1);
 
+                argv[0] = shell;
+                argv[1] = "-c";
+                argv[2] = xstrdup(cmd);
+                argv[3] = NULL;
+
                 execv(argv[0], argv);
                 error("Unable to execute '%.100s': %s", cmd, strerror(errno));
                 /* Die with signal to make this error apparent to parent. */