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/* |
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* Copyright (c) 2004, Richard Levitte <richard@levitte.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <windows.h> |
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#include <tchar.h> |
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#ifndef LPDIR_H |
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# include "LPdir.h" |
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#endif |
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|
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/* |
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* We're most likely overcautious here, but let's reserve for broken WinCE |
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* headers and explicitly opt for UNICODE call. Keep in mind that our WinCE |
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* builds are compiled with -DUNICODE [as well as -D_UNICODE]. |
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*/ |
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#if defined(LP_SYS_WINCE) && !defined(FindFirstFile) |
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# define FindFirstFile FindFirstFileW |
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#endif |
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#if defined(LP_SYS_WINCE) && !defined(FindNextFile) |
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# define FindNextFile FindNextFileW |
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#endif |
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|
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#ifndef NAME_MAX |
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# define NAME_MAX 255 |
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#endif |
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|
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struct LP_dir_context_st { |
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WIN32_FIND_DATA ctx; |
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HANDLE handle; |
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char entry_name[NAME_MAX + 1]; |
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}; |
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|
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const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory) |
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{ |
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if (ctx == NULL || directory == NULL) { |
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errno = EINVAL; |
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return 0; |
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} |
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|
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errno = 0; |
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if (*ctx == NULL) { |
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const char *extdir = directory; |
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char *extdirbuf = NULL; |
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size_t dirlen = strlen(directory); |
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|
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if (dirlen == 0) { |
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errno = ENOENT; |
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return 0; |
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} |
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|
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*ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX)); |
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if (*ctx == NULL) { |
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errno = ENOMEM; |
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return 0; |
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} |
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memset(*ctx, '\0', sizeof(LP_DIR_CTX)); |
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|
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if (directory[dirlen - 1] != '*') { |
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extdirbuf = (char *)malloc(dirlen + 3); |
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if (extdirbuf == NULL) { |
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free(*ctx); |
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*ctx = NULL; |
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errno = ENOMEM; |
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return 0; |
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} |
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if (directory[dirlen - 1] != '/' && directory[dirlen - 1] != '\\') |
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extdir = strcat(strcpy(extdirbuf, directory), "/*"); |
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else |
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extdir = strcat(strcpy(extdirbuf, directory), "*"); |
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} |
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|
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if (sizeof(TCHAR) != sizeof(char)) { |
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TCHAR *wdir = NULL; |
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/* len_0 denotes string length *with* trailing 0 */ |
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size_t index = 0, len_0 = strlen(extdir) + 1; |
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|
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wdir = (TCHAR *)calloc(len_0, sizeof(TCHAR)); |
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if (wdir == NULL) { |
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if (extdirbuf != NULL) { |
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free(extdirbuf); |
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} |
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free(*ctx); |
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*ctx = NULL; |
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errno = ENOMEM; |
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return 0; |
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} |
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#ifdef LP_MULTIBYTE_AVAILABLE |
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if (!MultiByteToWideChar |
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(CP_ACP, 0, extdir, len_0, (WCHAR *)wdir, len_0)) |
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#endif |
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for (index = 0; index < len_0; index++) |
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wdir[index] = (TCHAR)extdir[index]; |
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|
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(*ctx)->handle = FindFirstFile(wdir, &(*ctx)->ctx); |
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|
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free(wdir); |
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} else { |
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(*ctx)->handle = FindFirstFile((TCHAR *)extdir, &(*ctx)->ctx); |
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} |
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if (extdirbuf != NULL) { |
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free(extdirbuf); |
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} |
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|
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if ((*ctx)->handle == INVALID_HANDLE_VALUE) { |
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free(*ctx); |
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*ctx = NULL; |
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errno = EINVAL; |
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return 0; |
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} |
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} else { |
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if (FindNextFile((*ctx)->handle, &(*ctx)->ctx) == FALSE) { |
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return 0; |
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} |
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} |
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if (sizeof(TCHAR) != sizeof(char)) { |
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TCHAR *wdir = (*ctx)->ctx.cFileName; |
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size_t index, len_0 = 0; |
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|
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while (wdir[len_0] && len_0 < (sizeof((*ctx)->entry_name) - 1)) |
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len_0++; |
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len_0++; |
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|
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#ifdef LP_MULTIBYTE_AVAILABLE |
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if (!WideCharToMultiByte |
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(CP_ACP, 0, (WCHAR *)wdir, len_0, (*ctx)->entry_name, |
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sizeof((*ctx)->entry_name), NULL, 0)) |
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#endif |
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for (index = 0; index < len_0; index++) |
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(*ctx)->entry_name[index] = (char)wdir[index]; |
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} else |
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strncpy((*ctx)->entry_name, (const char *)(*ctx)->ctx.cFileName, |
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sizeof((*ctx)->entry_name) - 1); |
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|
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(*ctx)->entry_name[sizeof((*ctx)->entry_name) - 1] = '\0'; |
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|
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return (*ctx)->entry_name; |
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} |
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|
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int LP_find_file_end(LP_DIR_CTX **ctx) |
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{ |
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if (ctx != NULL && *ctx != NULL) { |
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FindClose((*ctx)->handle); |
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free(*ctx); |
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*ctx = NULL; |
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return 1; |
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} |
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errno = EINVAL; |
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return 0; |
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} |
