source3/printing/print_svid.c

   1 /*
   2  * Copyright (C) 1997-1998 by Norm Jacobs, Colorado Springs, Colorado, USA
   3  * Copyright (C) 1997-1998 by Sun Microsystem, Inc.
   4  * All Rights Reserved
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 /*
  21  * This module implements support for gathering and comparing available
  22  * printer information on a SVID or XPG4 compliant system.  It does this
  23  * through the use of the SVID/XPG4 command "lpstat(1)".
  24  *
  25  * The expectations is that execution of the command "lpstat -v" will
  26  * generate responses in the form of:
  27  *
  28  *      device for serial: /dev/term/b
  29  *      system for fax: server
  30  *      system for color: server (as printer chroma)
  31  */
  32
  33
  34 #include "includes.h"
  35 #include "printing/pcap.h"
  36
  37 #if defined(SYSV) || defined(HPUX)
  38 bool sysv_cache_reload(void)
  39 {
  40         char **lines;
  41         int i;
  42
  43 #if defined(HPUX)
  44         DEBUG(5, ("reloading hpux printcap cache\n"));
  45 #else
  46         DEBUG(5, ("reloading sysv printcap cache\n"));
  47 #endif
  48
  49         if ((lines = file_lines_pload("/usr/bin/lpstat -v", NULL)) == NULL)
  50         {
  51 #if defined(HPUX)
  52
  53                /*
  54                 * if "lpstat -v" is NULL then we check if schedular is running if it is
  55                 * that means no printers are added on the HP-UX system, if schedular is not
  56                 * running we display reload error.
  57                 */
  58
  59                 char **scheduler;
  60                 scheduler = file_lines_pload("/usr/bin/lpstat -r", NULL);
  61                 if(!strcmp(*scheduler,"scheduler is running")){
  62                         DEBUG(3,("No Printers found!!!\n"));
  63                         TALLOC_FREE(scheduler);
  64                         return True;
  65                 }
  66                 else{
  67                         DEBUG(3,("Scheduler is not running!!!\n"));
  68                         TALLOC_FREE(scheduler);
  69                         return False;
  70                 }
  71 #else
  72                 DEBUG(3,("No Printers found!!!\n"));
  73                 return False;
  74 #endif
  75         }
  76
  77         for (i = 0; lines[i]; i++) {
  78                 char *name, *tmp;
  79                 char *buf = lines[i];
  80
  81                 /* eat "system/device for " */
  82                 if (((tmp = strchr_m(buf, ' ')) == NULL) ||
  83                     ((tmp = strchr_m(++tmp, ' ')) == NULL))
  84                         continue;
  85
  86                 /*
  87                  * In case we're only at the "for ".
  88                  */
  89
  90                 if(!strncmp("for ", ++tmp, 4)) {
  91                         tmp=strchr_m(tmp, ' ');
  92                         tmp++;
  93                 }
  94
  95                 /* Eat whitespace. */
  96
  97                 while(*tmp == ' ')
  98                         ++tmp;
  99
 100                 /*
 101                  * On HPUX there is an extra line that can be ignored.
 102                  * d.thibadeau 2001/08/09
 103                  */
 104                 if(!strncmp("remote to", tmp, 9))
 105                         continue;
 106
 107                 name = tmp;
 108
 109                 /* truncate the ": ..." */
 110                 if ((tmp = strchr_m(name, ':')) != NULL)
 111                         *tmp = '\0';
 112
 113                 /* add it to the cache */
 114                 if (!pcap_cache_add(name, NULL)) {
 115                         TALLOC_FREE(lines);
 116                         return False;
 117                 }
 118         }
 119
 120         TALLOC_FREE(lines);
 121         return True;
 122 }
 123
 124 #else
 125 /* this keeps fussy compilers happy */
 126  void print_svid_dummy(void);
 127  void print_svid_dummy(void) {}
 128 #endif