nntp_newgroups.c 3.52 KB
/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <mailutils/sys/nntp.h>

int
mu_nntp_newgroups (mu_nntp_t nntp, unsigned int year, unsigned int month, unsigned int day,
		   unsigned int hour, unsigned int minute, unsigned int second, int is_gmt, list_t *plist)
{
  int status;

  if (nntp == NULL)
    return EINVAL;

  switch (nntp->state)
    {
    case MU_NNTP_NO_STATE:
      if (is_gmt > 0)
	status = mu_nntp_writeline (nntp, "NEWGROUPS %.4d%.2d%.2d %.2d%.2d%.2d GMT\r\n", year, month, day, hour, minute, second);
      else
	status = mu_nntp_writeline (nntp, "NEWGROUPS %.4d%.2d%.2d %.2d%.2d%.2d\r\n", year, month, day, hour, minute, second);
      MU_NNTP_CHECK_ERROR (nntp, status);
      mu_nntp_debug_cmd (nntp);
      nntp->state = MU_NNTP_NEWGROUPS;

    case MU_NNTP_NEWGROUPS:
      status = mu_nntp_send (nntp);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      nntp->acknowledge = 0;
      nntp->state = MU_NNTP_NEWGROUPS_ACK;

    case MU_NNTP_NEWGROUPS_ACK:
      status = mu_nntp_response (nntp, NULL, 0, NULL);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      mu_nntp_debug_ack (nntp);
      MU_NNTP_CHECK_CODE (nntp, MU_NNTP_RESP_CODE_NEWGROUPS_FOLLOW);

      status = list_create (plist);
      MU_NNTP_CHECK_ERROR(nntp, status);
      list_set_destroy_item(*plist, free);
      nntp->state = MU_NNTP_NEWGROUPS_RX;

    case MU_NNTP_NEWGROUPS_RX:
      {
	/* line should not be over 512 octets maximum.  */
	char *lista;
        size_t n = 0;

        lista = malloc (512);
        if (lista == NULL)
          {
            /* MU_NNTP_CHECK_ERROR(nntp, ENOMEM);
               Do not use the macro we need to clear the list if errors. */
            nntp->io.ptr = nntp->io.buf;
            nntp->state = MU_NNTP_ERROR;
            list_destroy (plist);
            return ENOMEM;
          }

        while ((status = mu_nntp_readline (nntp, lista, 512, &n)) == 0 && n > 0)
          {
            /* Nuke the trailing newline  */
            if (lista[n - 1] == '\n')
              lista[n - 1] = '\0';
            /* add to the list.  */
            list_append (*plist, strdup (lista));
            n = 0;
          }
        free (lista);
        MU_NNTP_CHECK_EAGAIN (nntp, status);
        nntp->state = MU_NNTP_NO_STATE;
        break;
      }

      /* They must deal with the error first by reopening.  */
    case MU_NNTP_ERROR:
      status = ECANCELED;
      break;

    default:
      status = EINPROGRESS;
    }

  return status;
}

int
mu_nntp_parse_newgroups (const char *buffer, char **group, unsigned long *high, unsigned long *low, char *status)
{
  return mu_nntp_parse_list_active (buffer, group, high, low, status);
}