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mail/alt.c 1.97 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
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   Copyright (C) 1999, 2001, 2002, 2005, 2007 Free Software Foundation, Inc.
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   GNU Mailutils is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3, or (at your option)
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   any later version.

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   GNU Mailutils is distributed in the hope that it will be useful,
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   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
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   along with GNU Mailutils; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301 USA */
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#include "mail.h"
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#include <pwd.h>
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static mu_list_t alternate_names = NULL;
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static char *my_email;
static char *my_name;
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/*
 * alt[ernates] name...
 */

int
mail_alt (int argc, char **argv)
{
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  if (argc == 1)
    {
      if (alternate_names)
	{
	  util_slist_print (alternate_names, 0);
	  fprintf (ofile, "\n");
	}
    }
  else
    {
      util_slist_destroy (&alternate_names);
      while (--argc)
	util_slist_add (&alternate_names, *++argv);
    }
  return 0;
}

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char *
mail_whoami ()
{
  return my_name;
}

void
mail_set_my_name (char *name)
{
  if (!name)
    {
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      struct passwd *pw = getpwuid (getuid ());
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      if (!pw)
	{
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	  util_error (_("Cannot determine my username"));
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	  exit (1);
	}
      name = pw->pw_name;
    }
  my_name = strdup (name);
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  my_email = mu_get_user_email (name);
  if (!my_email)
    {
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      util_error(_("Cannot determine my email address: %s"),
		 mu_strerror (errno));
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      exit (1);
    }
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}
   
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int
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mail_is_my_name (const char *name)
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{
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  if (strchr(name, '@') == NULL && strcasecmp (name, my_name) == 0)
    return 1;
  if (strcasecmp (name, my_email) == 0)
    return 1;
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  return util_slist_lookup (alternate_names, name);
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}