/* GNU mailutils - a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001, 2002 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
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#include "mail.h"

#if !HAVE_DECL_ENVIRON
extern char **environ;
#endif

int
mail_setenv (int argc, char **argv)
{
  if (argc == 1)
    {
      char **p;
      
      for (p = environ; *p; p++)
	printf ("%s\n", *p);
    }
  else
    {
      int i;

      /* Note: POSIX requires that the argument to putenv become part
	 of the environment itself, hence the memory allocation. */

      for (i = 1; i < argc;)
	{
	  char *p;
	  
	  if (i+1 < argc && argv[i+1][0] == '=')
	    {
	      asprintf (&p, "%s=%s", argv[i], argv[i+2]);
	      i += 3;
	    }
	  else
	    {
	      p = argv[i];
	      i++;
	    }
	  putenv (p);
	}
    }
  return 0;
}