/* GNU mailutils - a suite of utilities for electronic mail
   Copyright (C) 1999 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 "pop3d.h"

/* Prints the header of a message plus a specified number of lines */

int
pop3_top (const char *arg)
{
  int mesg, lines;
  char *mesgc, *linesc;
  char *buf;

  if (strlen (arg) == 0)
    return ERR_BAD_ARGS;

  if (state != TRANSACTION)
    return ERR_WRONG_STATE;

  mesgc = pop3_cmd (arg);
  linesc = pop3_args (arg);
  mesg = atoi (mesgc) - 1;
  lines = strlen (linesc) > 0 ? atoi (linesc) : -1;
  free (mesgc);
  free (linesc);

  if (lines < 0)
    return ERR_BAD_ARGS;

  if (mesg > mbox->messages || mbox_is_deleted(mbox, mesg))
    return ERR_NO_MESG;

  buf = mbox_get_header (mbox, mesg);
  fprintf (ofile, "+OK\r\n%s\r\n", buf);
  free (buf);
  buf = mbox_body_lines (mbox, mesg, lines);
  fprintf (ofile, "%s.\r\n", buf);
  free (buf);
  return OK;
}