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