1 /* Directory entry code for Window platforms.
2 Copyright (C) 1996-2022 Free Software Foundation, Inc.
3 This file is part of GNU Make.
5 GNU Make is free software; you can redistribute it and/or modify it under the
6 terms of the GNU General Public License as published by the Free Software
7 Foundation; either version 3 of the License, or (at your option) any later
10 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
11 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12 A PARTICULAR PURPOSE. See the GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License along with
15 this program. If not, see <https://www.gnu.org/licenses/>. */
19 #include <sys/types.h>
28 opendir(const char* pDirName)
40 if (stat(pDirName, &sb) != 0) {
44 if ((sb.st_mode & S_IFMT) != S_IFDIR) {
49 /* allocate a DIR structure to return */
50 pDir = (DIR *) malloc(sizeof (DIR));
55 /* input directory name length */
56 nBufferLen = strlen(pDirName);
58 /* copy input directory name to DIR buffer */
59 strcpy(pDir->dir_pDirectoryName, pDirName);
61 /* point to end of the copied directory name */
62 pEndDirName = &pDir->dir_pDirectoryName[nBufferLen - 1];
64 /* if directory name did not end in '/' or '\', add '/' */
65 if ((*pEndDirName != '/') && (*pEndDirName != '\\')) {
70 /* now append the wildcard character to the buffer */
76 /* other values defaulted */
77 pDir->dir_nNumFiles = 0;
78 pDir->dir_hDirHandle = INVALID_HANDLE_VALUE;
79 pDir->dir_ulCookie = __DIRENT_COOKIE;
87 /* got a valid pointer? */
93 /* sanity check that this is a DIR pointer */
94 if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
99 /* close the WINDOWS32 directory handle */
100 if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE)
101 FindClose(pDir->dir_hDirHandle);
111 WIN32_FIND_DATA wfdFindData;
118 /* sanity check that this is a DIR pointer */
119 if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
124 if (pDir->dir_nNumFiles == 0) {
125 pDir->dir_hDirHandle = FindFirstFile(pDir->dir_pDirectoryName, &wfdFindData);
126 if (pDir->dir_hDirHandle == INVALID_HANDLE_VALUE)
128 } else if (!FindNextFile(pDir->dir_hDirHandle, &wfdFindData))
131 /* bump count for next call to readdir() */
132 pDir->dir_nNumFiles++;
134 /* fill in struct dirent values */
135 pDir->dir_sdReturn.d_ino = (ino_t)-1;
136 strcpy(pDir->dir_sdReturn.d_name, wfdFindData.cFileName);
138 if (wfdFindData.dwFileAttributes & FILE_ATTRIBUTE_DEVICE)
139 pDir->dir_sdReturn.d_type = DT_CHR;
140 else if (wfdFindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
141 pDir->dir_sdReturn.d_type = DT_DIR;
143 pDir->dir_sdReturn.d_type = DT_REG;
145 return &pDir->dir_sdReturn;
156 /* sanity check that this is a DIR pointer */
157 if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
162 /* close the WINDOWS32 directory handle */
163 if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE)
164 if (!FindClose(pDir->dir_hDirHandle))
167 /* reset members which control readdir() */
168 pDir->dir_hDirHandle = INVALID_HANDLE_VALUE;
169 pDir->dir_nNumFiles = 0;
175 seekdir(DIR* pDir, long nPosition)
180 /* sanity check that this is a DIR pointer */
181 if (pDir->dir_ulCookie != __DIRENT_COOKIE)
184 /* go back to beginning of directory */
187 /* loop until we have found position we care about */
188 for (--nPosition; nPosition && readdir(pDir); nPosition--);
190 /* flag invalid nPosition value */
196 #endif /* !__MINGW32__ */