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(struct pcap_cache **_pcache)
  39 {
  40         char **lines;
  41         int i;
  42         struct pcap_cache *pcache = NULL;
  43
  44 #if defined(HPUX)
  45         DEBUG(5, ("reloading hpux printcap cache\n"));
  46 #else
  47         DEBUG(5, ("reloading sysv printcap cache\n"));
  48 #endif
  49
  50         if ((lines = file_lines_pload("/usr/bin/lpstat -v", NULL)) == NULL)
  51         {
  52 #if defined(HPUX)
  53
  54                /*
  55                 * if "lpstat -v" is NULL then we check if schedular is running if it is
  56                 * that means no printers are added on the HP-UX system, if schedular is not
  57                 * running we display reload error.
  58                 */
  59
  60                 char **scheduler;
  61                 scheduler = file_lines_pload("/usr/bin/lpstat -r", NULL);
  62                 if(!strcmp(*scheduler,"scheduler is running")){
  63                         DEBUG(3,("No Printers found!!!\n"));
  64                         TALLOC_FREE(scheduler);
  65                         return True;
  66                 }
  67                 else{
  68                         DEBUG(3,("Scheduler is not running!!!\n"));
  69                         TALLOC_FREE(scheduler);
  70                         return False;
  71                 }
  72 #else
  73                 DEBUG(3,("No Printers found!!!\n"));
  74                 return False;
  75 #endif
  76         }
  77
  78         for (i = 0; lines[i]; i++) {
  79                 char *name, *tmp;
  80                 char *buf = lines[i];
  81
  82                 /* eat "system/device for " */
  83                 if (((tmp = strchr_m(buf, ' ')) == NULL) ||
  84                     ((tmp = strchr_m(++tmp, ' ')) == NULL))
  85                         continue;
  86
  87                 /*
  88                  * In case we're only at the "for ".
  89                  */
  90
  91                 if(!strncmp("for ", ++tmp, 4)) {
  92                         tmp=strchr_m(tmp, ' ');
  93                         tmp++;
  94                 }
  95
  96                 /* Eat whitespace. */
  97
  98                 while(*tmp == ' ')
  99                         ++tmp;
 100
 101                 /*
 102                  * On HPUX there is an extra line that can be ignored.
 103                  * d.thibadeau 2001/08/09
 104                  */
 105                 if(!strncmp("remote to", tmp, 9))
 106                         continue;
 107
 108                 name = tmp;
 109
 110                 /* truncate the ": ..." */
 111                 if ((tmp = strchr_m(name, ':')) != NULL)
 112                         *tmp = '\0';
 113
 114                 /* add it to the cache */
 115                 if (!pcap_cache_add_specific(&pcache, name, NULL, NULL)) {
 116                         TALLOC_FREE(lines);
 117                         pcap_cache_destroy_specific(&pcache);
 118                         return false;
 119                 }
 120         }
 121
 122         TALLOC_FREE(lines);
 123         *_pcache = pcache;
 124         return true;
 125 }
 126
 127 #else
 128 /* this keeps fussy compilers happy */
 129  void print_svid_dummy(void);
 130  void print_svid_dummy(void) {}
 131 #endif