source3/printing/print_aix.c

   1 /*
   2    AIX-specific printcap loading
   3    Copyright (C) Jean-Pierre.Boulard@univ-rennes1.fr      1996
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 /*
  20  * This module implements AIX-specific printcap loading.  Most of the code
  21  * here was originally provided by Jean-Pierre.Boulard@univ-rennes1.fr in
  22  * the Samba 1.9.14 release, and was formerly contained in pcap.c.  It has
  23  * been moved here and condensed as part of a larger effort to clean up and
  24  * simplify the printcap code.    -- Rob Foehl, 2004/12/06
  25  */
  26
  27 #include "includes.h"
  28 #include "system/filesys.h"
  29 #include "printing/pcap.h"
  30
  31 #ifdef AIX
  32 bool aix_cache_reload(struct pcap_cache **_pcache)
  33 {
  34         int iEtat;
  35         FILE *pfile;
  36         char *line = NULL, *p;
  37         char *name = NULL;
  38         struct pcap_cache *pcache = NULL;
  39         TALLOC_CTX *ctx = talloc_init("aix_cache_reload");
  40
  41         if (!ctx) {
  42                 return false;
  43         }
  44
  45         DEBUG(5, ("reloading aix printcap cache\n"));
  46
  47         if ((pfile = fopen(lp_printcapname(), "r")) == NULL) {
  48                 DEBUG(0,( "Unable to open qconfig file %s for read!\n", lp_printcapname()));
  49                 TALLOC_FREE(ctx);
  50                 return false;
  51         }
  52
  53         iEtat = 0;
  54         /* scan qconfig file for searching <printername>:       */
  55         while (line = fgets_slash(ctx, NULL, 1024, pfile)) {
  56                 bool ok;
  57
  58                 if (*line == '*' || *line == 0) {
  59                         TALLOC_FREE(line);
  60                         continue;
  61                 }
  62
  63                 switch (iEtat) {
  64                 case 0: /* locate an entry */
  65                         if (*line == '\t' || *line == ' ') {
  66                                 TALLOC_FREE(line);
  67                                 continue;
  68                         }
  69
  70                         if ((p = strchr_m(line, ':'))) {
  71                                 char *saveptr;
  72                                 *p = '\0';
  73                                 p = strtok_r(line, ":", &saveptr);
  74                                 if (strcmp(p, "bsh") != 0) {
  75                                         name = talloc_strdup(ctx, p);
  76                                         if (!name) {
  77                                                 pcap_cache_destroy_specific(&pcache);
  78                                                 TALLOC_FREE(line);
  79                                                 fclose(pfile);
  80                                                 TALLOC_FREE(ctx);
  81                                                 return false;
  82                                         }
  83                                         iEtat = 1;
  84                                         continue;
  85                                 }
  86                          }
  87                          break;
  88
  89                 case 1: /* scanning device stanza */
  90                         if (*line == '*' || *line == 0)
  91                                 continue;
  92
  93                         if (*line != '\t' && *line != ' ') {
  94                                 /* name is found without stanza device  */
  95                                 /* probably a good printer ???          */
  96                                 iEtat = 0;
  97                                 ok = pcap_cache_add_specific(&pcache,
  98                                                              name, NULL, NULL);
  99                                 if (!ok) {
 100                                         pcap_cache_destroy_specific(&pcache);
 101                                         TALLOC_FREE(line);
 102                                         fclose(pfile);
 103                                         TALLOC_FREE(ctx);
 104                                         return false;
 105                                 }
 106                                 continue;
 107                         }
 108
 109                         if (strstr_m(line, "backend")) {
 110                                 /* it's a device, not a virtual printer */
 111                                 iEtat = 0;
 112                         } else if (strstr_m(line, "device")) {
 113                                 /* it's a good virtual printer */
 114                                 iEtat = 0;
 115                                 ok = pcap_cache_add_specific(&pcache,
 116                                                              name, NULL, NULL);
 117                                 if (!ok) {
 118                                         pcap_cache_destroy_specific(&pcache);
 119                                         SAFE_FREE(line);
 120                                         fclose(pfile);
 121                                         TALLOC_FREE(ctx);
 122                                         return false;
 123                                 }
 124                                 continue;
 125                         }
 126                         break;
 127                 }
 128         }
 129
 130         *_pcache = pcache;
 131         fclose(pfile);
 132         TALLOC_FREE(ctx);
 133         return true;
 134 }
 135
 136 #else
 137 /* this keeps fussy compilers happy */
 138  void print_aix_dummy(void);
 139  void print_aix_dummy(void) {}
 140 #endif /* AIX */