# HG changeset patch
# User Jacek Bukarewicz <j.bukarewicz@samsung.com>
# Date 1378375086 18000
# Node ID e3ebec880fe675081fc1c41cb7d8821a506ea905
# Parent  d90840f337ead41a139f709cc06c0c1aeb00fe2e
env - there were 2 segfaults when run on my Ubuntu 12.04 machine:
    - one is because eglibc sets environ to NULL on clearenv(). I added check for environ being not NULL when iterating over environment variables
    - switched xexec to xexec_optargs because command argument is a pointer to optarg which is freed by xexec.

diff -r d90840f337ea -r e3ebec880fe6 toys/posix/env.c
--- a/toys/posix/env.c	Thu Sep 05 04:28:40 2013 -0500
+++ b/toys/posix/env.c	Thu Sep 05 04:58:06 2013 -0500
@@ -45,7 +45,7 @@
 
   if (!command) {
     char **ep;
-    for (ep = environ; *ep; ep++) xputs(*ep);
-    return;
-  } else xexec(command);
+    if (environ) for (ep = environ; *ep; ep++) xputs(*ep);
+  } else xexec_optargs(command - toys.optargs);
+
 }