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 "printing/nt_printing_os2.h"
  24
  25 /****************************************************************************
  26  ***************************************************************************/
  27
  28 static char *win_driver;
  29 static char *os2_driver;
  30
  31 static const char *get_win_driver(void)
  32 {
  33         if (win_driver == NULL) {
  34                 return "";
  35         }
  36         return win_driver;
  37 }
  38
  39 static const char *get_os2_driver(void)
  40 {
  41         if (os2_driver == NULL) {
  42                 return "";
  43         }
  44         return os2_driver;
  45 }
  46
  47 static bool set_driver_mapping(const char *from, const char *to)
  48 {
  49         SAFE_FREE(win_driver);
  50         SAFE_FREE(os2_driver);
  51
  52         win_driver = SMB_STRDUP(from);
  53         os2_driver = SMB_STRDUP(to);
  54
  55         if (win_driver == NULL || os2_driver == NULL) {
  56                 SAFE_FREE(win_driver);
  57                 SAFE_FREE(os2_driver);
  58                 return false;
  59         }
  60         return true;
  61 }
  62
  63 /**
  64  * @internal
  65  *
  66  * @brief Map a Windows driver to a OS/2 driver.
  67  *
  68  * @param[in]  mem_ctx  The memory context to use.
  69  *
  70  * @param[in,out] pdrivername The drivername of Windows to remap.
  71  *
  72  * @return              WERR_OK on success, a corresponding WERROR on failure.
  73  */
  74 WERROR spoolss_map_to_os2_driver(TALLOC_CTX *mem_ctx, const char **pdrivername)
  75 {
  76         const struct loadparm_substitution *lp_sub =
  77                 loadparm_s3_global_substitution();
  78         const char *mapfile = lp_os2_driver_map(talloc_tos(), lp_sub);
  79         char **lines = NULL;
  80         const char *drivername;
  81         int numlines = 0;
  82         int i;
  83
  84         if (pdrivername == NULL || *pdrivername == NULL || *pdrivername[0] == '\0') {
  85                 return WERR_INVALID_PARAMETER;
  86         }
  87
  88         drivername = *pdrivername;
  89
  90         if (mapfile[0] == '\0') {
  91                 return WERR_FILE_NOT_FOUND;
  92         }
  93
  94         if (strequal(drivername, get_win_driver())) {
  95                 DEBUG(3,("Mapped Windows driver %s to OS/2 driver %s\n",
  96                         drivername, get_os2_driver()));
  97                 drivername = talloc_strdup(mem_ctx, get_os2_driver());
  98                 if (drivername == NULL) {
  99                         return WERR_NOT_ENOUGH_MEMORY;
 100                 }
 101                 *pdrivername = drivername;
 102                 return WERR_OK;
 103         }
 104
 105         lines = file_lines_load(mapfile, &numlines, 0, NULL);
 106         if (numlines == 0 || lines == NULL) {
 107                 DEBUG(0,("No entries in OS/2 driver map %s\n", mapfile));
 108                 TALLOC_FREE(lines);
 109                 return WERR_EMPTY;
 110         }
 111
 112         DEBUG(4,("Scanning OS/2 driver map %s\n",mapfile));
 113
 114         for( i = 0; i < numlines; i++) {
 115                 char *nt_name = lines[i];
 116                 char *os2_name = strchr(nt_name, '=');
 117
 118                 if (os2_name == NULL) {
 119                         continue;
 120                 }
 121
 122                 *os2_name++ = '\0';
 123
 124                 while (isspace(*nt_name)) {
 125                         nt_name++;
 126                 }
 127
 128                 if (*nt_name == '\0' || strchr("#;", *nt_name)) {
 129                         continue;
 130                 }
 131
 132                 {
 133                         int l = strlen(nt_name);
 134                         while (l && isspace(nt_name[l - 1])) {
 135                                 nt_name[l - 1] = 0;
 136                                 l--;
 137                         }
 138                 }
 139
 140                 while (isspace(*os2_name)) {
 141                         os2_name++;
 142                 }
 143
 144                 {
 145                         int l = strlen(os2_name);
 146                         while (l && isspace(os2_name[l-1])) {
 147                                 os2_name[l-1] = 0;
 148                                 l--;
 149                         }
 150                 }
 151
 152                 if (strequal(nt_name, drivername)) {
 153                         DEBUG(3,("Mapped Windows driver %s to OS/2 driver %s\n",drivername,os2_name));
 154                         set_driver_mapping(drivername, os2_name);
 155                         drivername = talloc_strdup(mem_ctx, os2_name);
 156                         TALLOC_FREE(lines);
 157                         if (drivername == NULL) {
 158                                 return WERR_NOT_ENOUGH_MEMORY;
 159                         }
 160                         *pdrivername = drivername;
 161                         return WERR_OK;
 162                 }
 163         }
 164
 165         TALLOC_FREE(lines);
 166         return WERR_OK;
 167 }