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
  36 #if defined(SYSV) || defined(HPUX)
  37 bool sysv_cache_reload(void)
  38 {
  39         char **lines;
  40         int i;
  41
  42 #if defined(HPUX)
  43         DEBUG(5, ("reloading hpux printcap cache\n"));
  44 #else
  45         DEBUG(5, ("reloading sysv printcap cache\n"));
  46 #endif
  47
  48         if ((lines = file_lines_pload("/usr/bin/lpstat -v", NULL)) == NULL)
  49         {
  50 #if defined(HPUX)
  51
  52                /*
  53                 * if "lpstat -v" is NULL then we check if schedular is running if it is
  54                 * that means no printers are added on the HP-UX system, if schedular is not
  55                 * running we display reload error.
  56                 */
  57
  58                 char **scheduler;
  59                 scheduler = file_lines_pload("/usr/bin/lpstat -r", NULL);
  60                 if(!strcmp(*scheduler,"scheduler is running")){
  61                         DEBUG(3,("No Printers found!!!\n"));
  62                         TALLOC_FREE(scheduler);
  63                         return True;
  64                 }
  65                 else{
  66                         DEBUG(3,("Scheduler is not running!!!\n"));
  67                         TALLOC_FREE(scheduler);
  68                         return False;
  69                 }
  70 #else
  71                 DEBUG(3,("No Printers found!!!\n"));
  72                 return False;
  73 #endif
  74         }
  75
  76         for (i = 0; lines[i]; i++) {
  77                 char *name, *tmp;
  78                 char *buf = lines[i];
  79
  80                 /* eat "system/device for " */
  81                 if (((tmp = strchr_m(buf, ' ')) == NULL) ||
  82                     ((tmp = strchr_m(++tmp, ' ')) == NULL))
  83                         continue;
  84
  85                 /*
  86                  * In case we're only at the "for ".
  87                  */
  88
  89                 if(!strncmp("for ", ++tmp, 4)) {
  90                         tmp=strchr_m(tmp, ' ');
  91                         tmp++;
  92                 }
  93
  94                 /* Eat whitespace. */
  95
  96                 while(*tmp == ' ')
  97                         ++tmp;
  98
  99                 /*
 100                  * On HPUX there is an extra line that can be ignored.
 101                  * d.thibadeau 2001/08/09
 102                  */
 103                 if(!strncmp("remote to", tmp, 9))
 104                         continue;
 105
 106                 name = tmp;
 107
 108                 /* truncate the ": ..." */
 109                 if ((tmp = strchr_m(name, ':')) != NULL)
 110                         *tmp = '\0';
 111
 112                 /* add it to the cache */
 113                 if (!pcap_cache_add(name, NULL)) {
 114                         TALLOC_FREE(lines);
 115                         return False;
 116                 }
 117         }
 118
 119         TALLOC_FREE(lines);
 120         return True;
 121 }
 122
 123 #else
 124 /* this keeps fussy compilers happy */
 125  void print_svid_dummy(void);
 126  void print_svid_dummy(void) {}
 127 #endif