source3/printing/nt_printing_os2.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-2000,
   5  *  Copyright (C) Jean François Micouleau      1998-2000.
   6  *  Copyright (C) Gerald Carter                2002-2005.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 3 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "includes.h"
  23 #include "lib/util/util_file.h"
  24 #include "printing/nt_printing_os2.h"
  25
  26 /****************************************************************************
  27  ***************************************************************************/
  28
  29 static char *win_driver;
  30 static char *os2_driver;
  31
  32 static const char *get_win_driver(void)
  33 {
  34         if (win_driver == NULL) {
  35                 return "";
  36         }
  37         return win_driver;
  38 }
  39
  40 static const char *get_os2_driver(void)
  41 {
  42         if (os2_driver == NULL) {
  43                 return "";
  44         }
  45         return os2_driver;
  46 }
  47
  48 static bool set_driver_mapping(const char *from, const char *to)
  49 {
  50         SAFE_FREE(win_driver);
  51         SAFE_FREE(os2_driver);
  52
  53         win_driver = SMB_STRDUP(from);
  54         os2_driver = SMB_STRDUP(to);
  55
  56         if (win_driver == NULL || os2_driver == NULL) {
  57                 SAFE_FREE(win_driver);
  58                 SAFE_FREE(os2_driver);
  59                 return false;
  60         }
  61         return true;
  62 }
  63
  64 /**
  65  * @internal
  66  *
  67  * @brief Map a Windows driver to a OS/2 driver.
  68  *
  69  * @param[in]  mem_ctx  The memory context to use.
  70  *
  71  * @param[in,out] pdrivername The drivername of Windows to remap.
  72  *
  73  * @return              WERR_OK on success, a corresponding WERROR on failure.
  74  */
  75 WERROR spoolss_map_to_os2_driver(TALLOC_CTX *mem_ctx, const char **pdrivername)
  76 {
  77         const struct loadparm_substitution *lp_sub =
  78                 loadparm_s3_global_substitution();
  79         const char *mapfile = lp_os2_driver_map(talloc_tos(), lp_sub);
  80         char **lines = NULL;
  81         const char *drivername;
  82         int numlines = 0;
  83         int i;
  84
  85         if (pdrivername == NULL || *pdrivername == NULL || *pdrivername[0] == '\0') {
  86                 return WERR_INVALID_PARAMETER;
  87         }
  88
  89         drivername = *pdrivername;
  90
  91         if (mapfile[0] == '\0') {
  92                 return WERR_FILE_NOT_FOUND;
  93         }
  94
  95         if (strequal(drivername, get_win_driver())) {
  96                 DEBUG(3,("Mapped Windows driver %s to OS/2 driver %s\n",
  97                         drivername, get_os2_driver()));
  98                 drivername = talloc_strdup(mem_ctx, get_os2_driver());
  99                 if (drivername == NULL) {
 100                         return WERR_NOT_ENOUGH_MEMORY;
 101                 }
 102                 *pdrivername = drivername;
 103                 return WERR_OK;
 104         }
 105
 106         lines = file_lines_load(mapfile, &numlines, 0, NULL);
 107         if (numlines == 0 || lines == NULL) {
 108                 DEBUG(0,("No entries in OS/2 driver map %s\n", mapfile));
 109                 TALLOC_FREE(lines);
 110                 return WERR_EMPTY;
 111         }
 112
 113         DEBUG(4,("Scanning OS/2 driver map %s\n",mapfile));
 114
 115         for( i = 0; i < numlines; i++) {
 116                 char *nt_name = lines[i];
 117                 char *os2_name = strchr(nt_name, '=');
 118
 119                 if (os2_name == NULL) {
 120                         continue;
 121                 }
 122
 123                 *os2_name++ = '\0';
 124
 125                 while (isspace(*nt_name)) {
 126                         nt_name++;
 127                 }
 128
 129                 if (*nt_name == '\0' || strchr("#;", *nt_name)) {
 130                         continue;
 131                 }
 132
 133                 {
 134                         int l = strlen(nt_name);
 135                         while (l && isspace(nt_name[l - 1])) {
 136                                 nt_name[l - 1] = 0;
 137                                 l--;
 138                         }
 139                 }
 140
 141                 while (isspace(*os2_name)) {
 142                         os2_name++;
 143                 }
 144
 145                 {
 146                         int l = strlen(os2_name);
 147                         while (l && isspace(os2_name[l-1])) {
 148                                 os2_name[l-1] = 0;
 149                                 l--;
 150                         }
 151                 }
 152
 153                 if (strequal(nt_name, drivername)) {
 154                         DEBUG(3,("Mapped Windows driver %s to OS/2 driver %s\n",drivername,os2_name));
 155                         set_driver_mapping(drivername, os2_name);
 156                         drivername = talloc_strdup(mem_ctx, os2_name);
 157                         TALLOC_FREE(lines);
 158                         if (drivername == NULL) {
 159                                 return WERR_NOT_ENOUGH_MEMORY;
 160                         }
 161                         *pdrivername = drivername;
 162                         return WERR_OK;
 163                 }
 164         }
 165
 166         TALLOC_FREE(lines);
 167         return WERR_OK;
 168 }