libcli/registry/util_reg.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * Registry helper routines
   4  * Copyright (C) Volker Lendecke 2006
   5  * Copyright (C) Guenther Deschner 2009
   6  * Copyright (C) Jelmer Vernooij 2003-2007
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 3 of the License, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but WITHOUT
  14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16  * more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along with
  19  * this program; if not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "includes.h"
  23 #include "../librpc/gen_ndr/ndr_misc.h"
  24
  25 /**
  26  * @file
  27  * @brief Registry utility functions
  28  */
  29
  30 static const struct {
  31         uint32_t id;
  32         const char *name;
  33 } reg_value_types[] = {
  34         { REG_NONE, "REG_NONE" },
  35         { REG_SZ, "REG_SZ" },
  36         { REG_EXPAND_SZ, "REG_EXPAND_SZ" },
  37         { REG_BINARY, "REG_BINARY" },
  38         { REG_DWORD, "REG_DWORD" },
  39         { REG_DWORD_BIG_ENDIAN, "REG_DWORD_BIG_ENDIAN" },
  40         { REG_LINK, "REG_LINK" },
  41         { REG_MULTI_SZ, "REG_MULTI_SZ" },
  42         { REG_RESOURCE_LIST, "REG_RESOURCE_LIST" },
  43         { REG_FULL_RESOURCE_DESCRIPTOR, "REG_FULL_RESOURCE_DESCRIPTOR" },
  44         { REG_RESOURCE_REQUIREMENTS_LIST, "REG_RESOURCE_REQUIREMENTS_LIST" },
  45         { REG_QWORD, "REG_QWORD" },
  46
  47         { 0, NULL }
  48 };
  49
  50 /** Return string description of registry value type */
  51 _PUBLIC_ const char *str_regtype(int type)
  52 {
  53         unsigned int i;
  54         for (i = 0; reg_value_types[i].name; i++) {
  55                 if (reg_value_types[i].id == type)
  56                         return reg_value_types[i].name;
  57         }
  58
  59         return "Unknown";
  60 }
  61
  62 /** Return registry value type for string description */
  63 _PUBLIC_ int regtype_by_string(const char *str)
  64 {
  65         unsigned int i;
  66         for (i = 0; reg_value_types[i].name; i++) {
  67                 if (strequal(reg_value_types[i].name, str))
  68                         return reg_value_types[i].id;
  69         }
  70
  71         return -1;
  72 }
  73
  74 /*******************************************************************
  75  push a string in unix charset into a REG_SZ UCS2 null terminated blob
  76  ********************************************************************/
  77
  78 bool push_reg_sz(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, const char *s)
  79 {
  80         union winreg_Data data;
  81         enum ndr_err_code ndr_err;
  82         data.string = s;
  83         ndr_err = ndr_push_union_blob(blob, mem_ctx, &data, REG_SZ,
  84                         (ndr_push_flags_fn_t)ndr_push_winreg_Data);
  85         return NDR_ERR_CODE_IS_SUCCESS(ndr_err);
  86 }
  87
  88 /*******************************************************************
  89  push a string_array in unix charset into a REG_MULTI_SZ UCS2 double-null
  90  terminated blob
  91  ********************************************************************/
  92
  93 bool push_reg_multi_sz(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, const char **a)
  94 {
  95         union winreg_Data data;
  96         enum ndr_err_code ndr_err;
  97         data.string_array = a;
  98         ndr_err = ndr_push_union_blob(blob, mem_ctx, &data, REG_MULTI_SZ,
  99                         (ndr_push_flags_fn_t)ndr_push_winreg_Data);
 100         return NDR_ERR_CODE_IS_SUCCESS(ndr_err);
 101 }
 102
 103 /*******************************************************************
 104  pull a string in unix charset out of a REG_SZ UCS2 null terminated blob
 105  ********************************************************************/
 106
 107 bool pull_reg_sz(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, const char **s)
 108 {
 109         union winreg_Data data;
 110         enum ndr_err_code ndr_err;
 111         ndr_err = ndr_pull_union_blob(blob, mem_ctx, &data, REG_SZ,
 112                         (ndr_pull_flags_fn_t)ndr_pull_winreg_Data);
 113         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 114                 return false;
 115         }
 116         *s = data.string;
 117         return true;
 118 }
 119
 120 /*******************************************************************
 121  pull a string_array in unix charset out of a REG_MULTI_SZ UCS2 double-null
 122  terminated blob
 123  ********************************************************************/
 124
 125 bool pull_reg_multi_sz(TALLOC_CTX *mem_ctx,
 126                        const DATA_BLOB *blob, const char ***a)
 127 {
 128         union winreg_Data data;
 129         enum ndr_err_code ndr_err;
 130         ndr_err = ndr_pull_union_blob(blob, mem_ctx, &data, REG_MULTI_SZ,
 131                         (ndr_pull_flags_fn_t)ndr_pull_winreg_Data);
 132         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 133                 return false;
 134         }
 135         *a = data.string_array;
 136         return true;
 137 }