/*

 * Copyright (C) 1997-1998 by Norm Jacobs, Colorado Springs, Colorado, USA

 * Copyright (C) 1997-1998 by Sun Microsystem, Inc.

 * All Rights Reserved

 *

 * 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 3 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, see <http://www.gnu.org/licenses/>.

 */

/*

 * This module implements support for gathering and comparing available

 * printer information on a SVID or XPG4 compliant system.  It does this

 * through the use of the SVID/XPG4 command "lpstat(1)".

 *

 * The expectations is that execution of the command "lpstat -v" will

 * generate responses in the form of:

 *

 *  device for serial: /dev/term/b

 *  system for fax: server

 *  system for color: server (as printer chroma)

 */

#include "includes.h"

#include "printing/pcap.h"

#include "lib/util_file.h"

#if defined(SYSV) || defined(HPUX)

bool sysv_cache_reload(struct pcap_cache **_pcache)

{

  char **lines;

  int i;

  struct pcap_cache *pcache = NULL;

  char **argl = NULL;

#if defined(HPUX)

  DEBUG(5, ("reloading hpux printcap cache\n"));

#else

  DEBUG(5, ("reloading sysv printcap cache\n"));

#endif

  argl = str_list_make_empty(talloc_tos());

  str_list_add_printf(&argl, "/usr/bin/lpstat");

  str_list_add_printf(&argl, "-v");

  if (argl == NULL) {

    return false;

  }

  lines = file_lines_ploadv(talloc_tos(), argl, NULL);

  if (lines == NULL) {

#if defined(HPUX)

               /*

    * if "lpstat -v" is NULL then we check if schedular is running if it is

    * that means no printers are added on the HP-UX system, if schedular is not

    * running we display reload error.

    */

    char **scheduler;

    argl[1] = talloc_strdup(argl, "-r");

    if (argl[1] == NULL) {

      TALLOC_FREE(argl);

      return false;

    }

    scheduler = file_lines_ploadv(talloc_tos(), argl, NULL);

    TALLOC_FREE(argl);

                if(!strcmp(*scheduler,"scheduler is running")){

                        DEBUG(3,("No Printers found!!!\n"));

      TALLOC_FREE(scheduler);

                        return True;

                }

                else{

                        DEBUG(3,("Scheduler is not running!!!\n"));

      TALLOC_FREE(scheduler);

      return False;

    }

#else

    DEBUG(3,("No Printers found!!!\n"));

    return False;

#endif

  }

  TALLOC_FREE(argl);

  for (i = 0; lines[i]; i++) {

    char *name, *tmp;

    char *buf = lines[i];

    /* eat "system/device for " */

    if (((tmp = strchr_m(buf, ' ')) == NULL) ||

        ((tmp = strchr_m(++tmp, ' ')) == NULL))

      continue;

    /*

     * In case we're only at the "for ".

     */

    if(!strncmp("for ", ++tmp, 4)) {

      tmp=strchr_m(tmp, ' ');

      tmp++;

    }

    /* Eat whitespace. */

    while(*tmp == ' ')

      ++tmp;

    /*

     * On HPUX there is an extra line that can be ignored.

     * d.thibadeau 2001/08/09

     */

    if(!strncmp("remote to", tmp, 9))

      continue;

    name = tmp;

    /* truncate the ": ..." */

    if ((tmp = strchr_m(name, ':')) != NULL)

      *tmp = '\0';

    /* add it to the cache */

    if (!pcap_cache_add_specific(&pcache, name, NULL, NULL)) {

      TALLOC_FREE(lines);

      pcap_cache_destroy_specific(&pcache);

      return false;

    }

  }

  TALLOC_FREE(lines);

  *_pcache = pcache;

  return true;

}

#else

/* this keeps fussy compilers happy */

 void print_svid_dummy(void);

 void print_svid_dummy(void) {}

#endif