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/* mail.c
   Send mail to a user.

   Copyright (C) 1992, 1993 Ian Lance Taylor

   This file is part of the Taylor UUCP package.

   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 of the
   License, 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

   The author of the program may be contacted at ian@airs.com or
   c/o Cygnus Support, 48 Grove Street, Somerville, MA 02144.
   */

#include "uucp.h"

#include "uudefs.h"
#include "sysdep.h"
#include "system.h"

#include <errno.h>

#if HAVE_TIME_H
#include <time.h>
#endif

#ifndef ctime
extern char *ctime ();
#endif

/* Mail a message to a user.  */

boolean
fsysdep_mail (zto, zsubject, cstrs, paz)
     const char *zto;
     const char *zsubject;
     int cstrs;
     const char **paz;
{
  char **pazargs;
  char *zcopy, *ztok;
  size_t cargs, iarg;
  FILE *e;
  pid_t ipid;
  time_t itime;
  int i;

  /* Parse MAIL_PROGRAM into an array of arguments.  */
  zcopy = zbufcpy (MAIL_PROGRAM);

  cargs = 0;
  for (ztok = strtok (zcopy, " \t");
       ztok != NULL;
       ztok = strtok ((char *) NULL, " \t"))
    ++cargs;

  pazargs = (char **) xmalloc ((cargs + 4) * sizeof (char *));

  memcpy (zcopy, MAIL_PROGRAM, sizeof MAIL_PROGRAM);
  for (ztok = strtok (zcopy, " \t"), iarg = 0;
       ztok != NULL;
       ztok = strtok ((char *) NULL, " \t"), ++iarg)
    pazargs[iarg] = ztok;

#if ! MAIL_PROGRAM_SUBJECT_BODY
  pazargs[iarg++] = (char *) "-s";
  pazargs[iarg++] = (char *) zsubject;
#endif

#if ! MAIL_PROGRAM_TO_BODY
  pazargs[iarg++] = (char *) zto;
#endif

  pazargs[iarg] = NULL;

  e = espopen ((const char **) pazargs, FALSE, &ipid);

  ubuffree (zcopy);
  xfree ((pointer) pazargs);

  if (e == NULL)
    {
      ulog (LOG_ERROR, "espopen (%s): %s", MAIL_PROGRAM,
	    strerror (errno));
      return FALSE;
    }

#if MAIL_PROGRAM_TO_BODY
  fprintf (e, "To: %s\n", zto);
#endif
#if MAIL_PROGRAM_SUBJECT_BODY
  fprintf (e, "Subject: %s\n", zsubject);
#endif

#if MAIL_PROGRAM_TO_BODY || MAIL_PROGRAM_SUBJECT_BODY
  fprintf (e, "\n");
#endif

  (void) time (&itime);
  /* Remember that ctime includes a \n, so this skips a line.  */
  fprintf (e, "Message from UUCP on %s %s\n", zSlocalname,
	   ctime (&itime));

  for (i = 0; i < cstrs; i++)
    fputs (paz[i], e);

  (void) fclose (e);

  return ixswait ((unsigned long) ipid, MAIL_PROGRAM) == 0;
}
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