printing/print_svid.c

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/*
 * 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * 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"

#if defined(SYSV) || defined(HPUX)
BOOL sysv_cache_reload(void)
{
        char **lines;
        int i;

#if defined(HPUX)
        DEBUG(5, ("reloading hpux printcap cache\n"));
#else
        DEBUG(5, ("reloading sysv printcap cache\n"));
#endif

        if ((lines = file_lines_pload("/usr/bin/lpstat -v", NULL)) == 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;
                scheduler = file_lines_pload("/usr/bin/lpstat -r", NULL);
                if(!strcmp(*scheduler,"scheduler is running")){
                        DEBUG(3,("No Printers found!!!\n"));
                        file_lines_free(scheduler);
                        return True;
                }
                else{
                        DEBUG(3,("Scheduler is not running!!!\n"));
                        file_lines_free(scheduler);
                        return False;
                }
#else
                DEBUG(3,("No Printers found!!!\n"));
                return False;
#endif
        }

        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(name, NULL)) {
                        file_lines_free(lines);
                        return False;
                }
        }

        file_lines_free(lines);
        return True;
}

#else
/* this keeps fussy compilers happy */
 void print_svid_dummy(void);
 void print_svid_dummy(void) {}
#endif

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