* src/env.c (main): When invoked with no arguments (i.e. when printing

the environment), use a local variable to iterate through the global
"environ" array, rather than "environ" itself.  This is solely to
avoid changing the environment for an LD_PRELOAD-substituted "puts"
or "exit" function.  Tiny patch by Harvey Eneman.  See
<http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/9735>.
* THANKS: Update.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/env.c b/src/env.c
index 7283926de..d95ebfd7e 100644
--- a/src/env.c
+++ b/src/env.c
@@ -1,5 +1,5 @@
 /* env - run a program in a modified environment
-   Copyright (C) 1986, 1991-2005 Free Software Foundation, Inc.
+   Copyright (C) 1986, 1991-2005, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -189,8 +189,9 @@ main (int argc, char **argv)
   /* If no program is specified, print the environment and exit. */
   if (argc <= optind)
     {
-      while (*environ)
-	puts (*environ++);
+      char *const *e = environ;
+      while (*e)
+	puts (*e++);
       exit (EXIT_SUCCESS);
     }