1 /* 2 * libusb strerror code 3 * Copyright 2013 Hans de Goede <hdegoede (at) redhat.com> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2.1 of the License, or (at your option) any later version. 9 * 10 * This library 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 GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20 #include <config.h> 21 22 #include <locale.h> 23 #include <stdlib.h> 24 #include <string.h> 25 #if defined(HAVE_STRINGS_H) 26 #include <strings.h> 27 #endif 28 29 #include "libusbi.h" 30 31 #if defined(_MSC_VER) 32 #define strncasecmp _strnicmp 33 #endif 34 35 static size_t usbi_locale = 0; 36 37 /** \ingroup libusb_misc 38 * How to add a new \ref libusb_strerror() translation: 39 * <ol> 40 * <li> Download the latest \c strerror.c from:<br> 41 * https://raw.github.com/libusb/libusb/master/libusb/sterror.c </li> 42 * <li> Open the file in an UTF-8 capable editor </li> 43 * <li> Add the 2 letter <a href="http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes">ISO 639-1</a> 44 * code for your locale at the end of \c usbi_locale_supported[]<br> 45 * Eg. for Chinese, you would add "zh" so that: 46 * \code... usbi_locale_supported[] = { "en", "nl", "fr" };\endcode 47 * becomes: 48 * \code... usbi_locale_supported[] = { "en", "nl", "fr", "zh" };\endcode </li> 49 * <li> Copy the <tt>{ / * English (en) * / ... }</tt> section and add it at the end of \c usbi_localized_errors<br> 50 * Eg. for Chinese, the last section of \c usbi_localized_errors could look like: 51 * \code 52 * }, { / * Chinese (zh) * / 53 * "Success", 54 * ... 55 * "Other error", 56 * } 57 * };\endcode </li> 58 * <li> Translate each of the English messages from the section you copied into your language </li> 59 * <li> Save the file (in UTF-8 format) and send it to \c libusb-devel\@lists.sourceforge.net </li> 60 * </ol> 61 */ 62 63 static const char* usbi_locale_supported[] = { "en", "nl", "fr", "ru" }; 64 static const char* usbi_localized_errors[ARRAYSIZE(usbi_locale_supported)][LIBUSB_ERROR_COUNT] = { 65 { /* English (en) */ 66 "Success", 67 "Input/Output Error", 68 "Invalid parameter", 69 "Access denied (insufficient permissions)", 70 "No such device (it may have been disconnected)", 71 "Entity not found", 72 "Resource busy", 73 "Operation timed out", 74 "Overflow", 75 "Pipe error", 76 "System call interrupted (perhaps due to signal)", 77 "Insufficient memory", 78 "Operation not supported or unimplemented on this platform", 79 "Other error", 80 }, { /* Dutch (nl) */ 81 "Gelukt", 82 "Invoer-/uitvoerfout", 83 "Ongeldig argument", 84 "Toegang geweigerd (onvoldoende toegangsrechten)", 85 "Apparaat bestaat niet (verbinding met apparaat verbroken?)", 86 "Niet gevonden", 87 "Apparaat of hulpbron is bezig", 88 "Bewerking verlopen", 89 "Waarde is te groot", 90 "Gebroken pijp", 91 "Onderbroken systeemaanroep", 92 "Onvoldoende geheugen beschikbaar", 93 "Bewerking wordt niet ondersteund", 94 "Andere fout", 95 }, { /* French (fr) */ 96 "Succs", 97 "Erreur d'entre/sortie", 98 "Paramtre invalide", 99 "Accs refus (permissions insuffisantes)", 100 "Priphrique introuvable (peut-tre dconnect)", 101 "Elment introuvable", 102 "Resource dj occupe", 103 "Operation expire", 104 "Dbordement", 105 "Erreur de pipe", 106 "Appel systme abandonn (peut-tre cause dun signal)", 107 "Mmoire insuffisante", 108 "Opration non supporte or non implmente sur cette plateforme", 109 "Autre erreur", 110 }, { /* Russian (ru) */ 111 "", 112 " /", 113 " ", 114 " ( )", 115 " (, )", 116 " ", 117 " ", 118 " ", 119 "", 120 " ", 121 " (, )", 122 " ", 123 " ", 124 " " 125 } 126 }; 127 128 /** \ingroup libusb_misc 129 * Set the language, and only the language, not the encoding! used for 130 * translatable libusb messages. 131 * 132 * This takes a locale string in the default setlocale format: lang[-region] 133 * or lang[_country_region][.codeset]. Only the lang part of the string is 134 * used, and only 2 letter ISO 639-1 codes are accepted for it, such as "de". 135 * The optional region, country_region or codeset parts are ignored. This 136 * means that functions which return translatable strings will NOT honor the 137 * specified encoding. 138 * All strings returned are encoded as UTF-8 strings. 139 * 140 * If libusb_setlocale() is not called, all messages will be in English. 141 * 142 * The following functions return translatable strings: libusb_strerror(). 143 * Note that the libusb log messages controlled through libusb_set_debug() 144 * are not translated, they are always in English. 145 * 146 * For POSIX UTF-8 environments if you want libusb to follow the standard 147 * locale settings, call libusb_setlocale(setlocale(LC_MESSAGES, NULL)), 148 * after your app has done its locale setup. 149 * 150 * \param locale locale-string in the form of lang[_country_region][.codeset] 151 * or lang[-region], where lang is a 2 letter ISO 639-1 code 152 * \returns LIBUSB_SUCCESS on success 153 * \returns LIBUSB_ERROR_INVALID_PARAM if the locale doesn't meet the requirements 154 * \returns LIBUSB_ERROR_NOT_FOUND if the requested language is not supported 155 * \returns a LIBUSB_ERROR code on other errors 156 */ 157 158 int API_EXPORTED libusb_setlocale(const char *locale) 159 { 160 size_t i; 161 162 if ( (locale == NULL) || (strlen(locale) < 2) 163 || ((strlen(locale) > 2) && (locale[2] != '-') && (locale[2] != '_') && (locale[2] != '.')) ) 164 return LIBUSB_ERROR_INVALID_PARAM; 165 166 for (i=0; i<ARRAYSIZE(usbi_locale_supported); i++) { 167 if (strncasecmp(usbi_locale_supported[i], locale, 2) == 0) 168 break; 169 } 170 if (i >= ARRAYSIZE(usbi_locale_supported)) { 171 return LIBUSB_ERROR_NOT_FOUND; 172 } 173 174 usbi_locale = i; 175 176 return LIBUSB_SUCCESS; 177 } 178 179 /** \ingroup libusb_misc 180 * Returns a constant string with a short description of the given error code, 181 * this description is intended for displaying to the end user and will be in 182 * the language set by libusb_setlocale(). 183 * 184 * The returned string is encoded in UTF-8. 185 * 186 * The messages always start with a capital letter and end without any dot. 187 * The caller must not free() the returned string. 188 * 189 * \param errcode the error code whose description is desired 190 * \returns a short description of the error code in UTF-8 encoding 191 */ 192 DEFAULT_VISIBILITY const char* LIBUSB_CALL libusb_strerror(enum libusb_error errcode) 193 { 194 int errcode_index = -errcode; 195 196 if ((errcode_index < 0) || (errcode_index >= LIBUSB_ERROR_COUNT)) { 197 /* "Other Error", which should always be our last message, is returned */ 198 errcode_index = LIBUSB_ERROR_COUNT - 1; 199 } 200 201 return usbi_localized_errors[usbi_locale][errcode_index]; 202 } 203
