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         char **argl = NULL;
  45
  46 #if defined(HPUX)
  47         DEBUG(5, ("reloading hpux printcap cache\n"));
  48 #else
  49         DEBUG(5, ("reloading sysv printcap cache\n"));
  50 #endif
  51
  52         argl = str_list_make_empty(talloc_tos());
  53         str_list_add_printf(&argl, "/usr/bin/lpstat");
  54         str_list_add_printf(&argl, "-v");
  55         if (argl == NULL) {
  56                 return false;
  57         }
  58
  59         lines = file_lines_ploadv(talloc_tos(), argl, NULL);
  60         if (lines == NULL) {
  61 #if defined(HPUX)
  62
  63                /*
  64                 * if "lpstat -v" is NULL then we check if schedular is running if it is
  65                 * that means no printers are added on the HP-UX system, if schedular is not
  66                 * running we display reload error.
  67                 */
  68
  69                 char **scheduler;
  70
  71                 argl[1] = talloc_strdup(argl, "-r");
  72                 if (argl[1] == NULL) {
  73                         TALLOC_FREE(argl);
  74                         return false;
  75                 }
  76                 scheduler = file_lines_ploadv(talloc_tos(), argl, NULL);
  77                 TALLOC_FREE(argl);
  78                 if(!strcmp(*scheduler,"scheduler is running")){
  79                         DEBUG(3,("No Printers found!!!\n"));
  80                         TALLOC_FREE(scheduler);
  81                         return True;
  82                 }
  83                 else{
  84                         DEBUG(3,("Scheduler is not running!!!\n"));
  85                         TALLOC_FREE(scheduler);
  86                         return False;
  87                 }
  88 #else
  89                 DEBUG(3,("No Printers found!!!\n"));
  90                 return False;
  91 #endif
  92         }
  93         TALLOC_FREE(argl);
  94
  95         for (i = 0; lines[i]; i++) {
  96                 char *name, *tmp;
  97                 char *buf = lines[i];
  98
  99                 /* eat "system/device for " */
 100                 if (((tmp = strchr_m(buf, ' ')) == NULL) ||
 101                     ((tmp = strchr_m(++tmp, ' ')) == NULL))
 102                         continue;
 103
 104                 /*
 105                  * In case we're only at the "for ".
 106                  */
 107
 108                 if(!strncmp("for ", ++tmp, 4)) {
 109                         tmp=strchr_m(tmp, ' ');
 110                         tmp++;
 111                 }
 112
 113                 /* Eat whitespace. */
 114
 115                 while(*tmp == ' ')
 116                         ++tmp;
 117
 118                 /*
 119                  * On HPUX there is an extra line that can be ignored.
 120                  * d.thibadeau 2001/08/09
 121                  */
 122                 if(!strncmp("remote to", tmp, 9))
 123                         continue;
 124
 125                 name = tmp;
 126
 127                 /* truncate the ": ..." */
 128                 if ((tmp = strchr_m(name, ':')) != NULL)
 129                         *tmp = '\0';
 130
 131                 /* add it to the cache */
 132                 if (!pcap_cache_add_specific(&pcache, name, NULL, NULL)) {
 133                         TALLOC_FREE(lines);
 134                         pcap_cache_destroy_specific(&pcache);
 135                         return false;
 136                 }
 137         }
 138
 139         TALLOC_FREE(lines);
 140         *_pcache = pcache;
 141         return true;
 142 }
 143
 144 #else
 145 /* this keeps fussy compilers happy */
 146  void print_svid_dummy(void);
 147  void print_svid_dummy(void) {}
 148 #endif