1 | /* $Id: utf8-win.cpp 57358 2015-08-14 15:16:38Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - UTF8 helpers.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2015 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 |
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28 | /*********************************************************************************************************************************
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29 | * Header Files *
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30 | *********************************************************************************************************************************/
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31 | #define LOG_GROUP RTLOGGROUP_UTF8
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32 | #include <Windows.h>
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33 |
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34 | #include <iprt/string.h>
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35 | #include <iprt/alloc.h>
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36 | #include <iprt/assert.h>
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37 | #include <iprt/err.h>
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38 |
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39 |
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40 | RTR3DECL(int) RTStrUtf8ToCurrentCPTag(char **ppszString, const char *pszString, const char *pszTag)
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41 | {
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42 | Assert(ppszString);
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43 | Assert(pszString);
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44 |
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45 | /*
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46 | * Check for zero length input string.
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47 | */
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48 | if (!*pszString)
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49 | {
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50 | *ppszString = (char *)RTMemTmpAllocZTag(sizeof(char), pszTag);
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51 | if (*ppszString)
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52 | return VINF_SUCCESS;
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53 | return VERR_NO_TMP_MEMORY;
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54 | }
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55 |
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56 | *ppszString = NULL;
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57 |
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58 | /*
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59 | * Convert to wide char first.
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60 | */
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61 | PRTUTF16 pwszString = NULL;
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62 | int rc = RTStrToUtf16(pszString, &pwszString);
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63 | if (RT_FAILURE(rc))
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64 | return rc;
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65 |
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66 | /*
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67 | * First calc result string length.
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68 | */
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69 | int cbResult = WideCharToMultiByte(CP_ACP, 0, pwszString, -1, NULL, 0, NULL, NULL);
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70 | if (cbResult > 0)
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71 | {
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72 | /*
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73 | * Alloc space for result buffer.
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74 | */
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75 | LPSTR lpString = (LPSTR)RTMemTmpAllocTag(cbResult, pszTag);
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76 | if (lpString)
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77 | {
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78 | /*
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79 | * Do the translation.
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80 | */
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81 | if (WideCharToMultiByte(CP_ACP, 0, pwszString, -1, lpString, cbResult, NULL, NULL) > 0)
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82 | {
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83 | /* ok */
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84 | *ppszString = lpString;
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85 | RTMemTmpFree(pwszString);
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86 | return VINF_SUCCESS;
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87 | }
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88 |
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89 | /* translation error */
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90 | int iLastErr = GetLastError();
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91 | AssertMsgFailed(("Unicode to ACP translation failed. lasterr=%d\n", iLastErr));
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92 | rc = RTErrConvertFromWin32(iLastErr);
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93 | }
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94 | else
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95 | rc = VERR_NO_TMP_MEMORY;
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96 | RTMemTmpFree(lpString);
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97 | }
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98 | else
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99 | {
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100 | /* translation error */
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101 | int iLastErr = GetLastError();
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102 | AssertMsgFailed(("Unicode to ACP translation failed lasterr=%d\n", iLastErr));
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103 | rc = RTErrConvertFromWin32(iLastErr);
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104 | }
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105 | RTMemTmpFree(pwszString);
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106 | return rc;
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107 | }
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108 |
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109 |
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110 | RTR3DECL(int) RTStrCurrentCPToUtf8Tag(char **ppszString, const char *pszString, const char *pszTag)
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111 | {
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112 | Assert(ppszString);
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113 | Assert(pszString);
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114 | *ppszString = NULL;
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115 |
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116 | /** @todo is there a quicker way? Currently: ACP -> UTF-16 -> UTF-8 */
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117 |
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118 | size_t cch = strlen(pszString);
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119 | if (cch <= 0)
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120 | {
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121 | /* zero length string passed. */
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122 | *ppszString = (char *)RTMemTmpAllocZTag(sizeof(char), pszTag);
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123 | if (*ppszString)
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124 | return VINF_SUCCESS;
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125 | return VERR_NO_TMP_MEMORY;
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126 | }
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127 |
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128 | /*
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129 | * First calc result string length.
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130 | */
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131 | int rc;
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132 | int cwc = MultiByteToWideChar(CP_ACP, 0, pszString, -1, NULL, 0);
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133 | if (cwc > 0)
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134 | {
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135 | /*
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136 | * Alloc space for result buffer.
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137 | */
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138 | PRTUTF16 pwszString = (PRTUTF16)RTMemTmpAlloc(cwc * sizeof(RTUTF16));
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139 | if (pwszString)
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140 | {
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141 | /*
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142 | * Do the translation.
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143 | */
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144 | if (MultiByteToWideChar(CP_ACP, 0, pszString, -1, pwszString, cwc) > 0)
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145 | {
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146 | /*
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147 | * Now we got UTF-16, convert it to UTF-8
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148 | */
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149 | rc = RTUtf16ToUtf8(pwszString, ppszString);
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150 | RTMemTmpFree(pwszString);
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151 | return rc;
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152 | }
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153 | RTMemTmpFree(pwszString);
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154 | /* translation error */
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155 | int iLastErr = GetLastError();
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156 | AssertMsgFailed(("ACP to Unicode translation failed. lasterr=%d\n", iLastErr));
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157 | rc = RTErrConvertFromWin32(iLastErr);
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158 | }
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159 | else
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160 | rc = VERR_NO_TMP_MEMORY;
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161 | }
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162 | else
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163 | {
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164 | /* translation error */
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165 | int iLastErr = GetLastError();
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166 | AssertMsgFailed(("Unicode to ACP translation failed lasterr=%d\n", iLastErr));
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167 | rc = RTErrConvertFromWin32(iLastErr);
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168 | }
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169 | return rc;
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170 | }
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171 |
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