1 /* Start reading the entries of a directory.
2 Copyright (C) 2006-2021 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
27 /* Override opendir(), to keep track of the open file descriptors.
28 Needed because there is a function dirfd(). */
34 # include "dirent-private.h"
35 # include "filename.h"
48 #if defined _WIN32 && ! defined __CYGWIN__
49 /* Don't assume that UNICODE is not defined. */
50 # undef WIN32_FIND_DATA
51 # define WIN32_FIND_DATA WIN32_FIND_DATAA
52 # undef GetFullPathName
53 # define GetFullPathName GetFullPathNameA
55 # define FindFirstFile FindFirstFileA
59 opendir (const char *dir_name)
65 dirp = opendir (dir_name);
71 int fd = open (dir_name, O_RDONLY);
72 if (fd == -1 || _gl_register_dirp_fd (fd, dirp))
74 int saved_errno = errno;
87 char dir_name_mask[MAX_PATH + 1 + 1 + 1];
90 WIN32_FIND_DATA entry;
91 struct gl_directory *dirp;
93 if (dir_name[0] == '\0')
99 /* Make the dir_name absolute, so that we continue reading the same
100 directory if the current directory changed between this opendir()
101 call and a subsequent rewinddir() call. */
102 if (!GetFullPathName (dir_name, MAX_PATH, dir_name_mask, NULL))
109 "*" and "*.*" appear to be equivalent. */
113 p = dir_name_mask + strlen (dir_name_mask);
114 if (p > dir_name_mask && !ISSLASH (p[-1]))
120 /* Start searching the directory. */
122 current = FindFirstFile (dir_name_mask, &entry);
123 if (current == INVALID_HANDLE_VALUE)
125 switch (GetLastError ())
127 case ERROR_FILE_NOT_FOUND:
130 case ERROR_PATH_NOT_FOUND:
133 case ERROR_DIRECTORY:
136 case ERROR_ACCESS_DENIED:
145 /* Allocate the result. */
147 (struct gl_directory *)
148 malloc (offsetof (struct gl_directory, dir_name_mask[0])
149 + strlen (dir_name_mask) + 1);
152 if (current != INVALID_HANDLE_VALUE)
157 dirp->status = status;
158 dirp->current = current;
160 memcpy (&dirp->entry, &entry, sizeof (WIN32_FIND_DATA));
161 strcpy (dirp->dir_name_mask, dir_name_mask);
167 int fd = dirfd (dirp);
168 if (0 <= fd && _gl_register_fd (fd, dir_name) != fd)
170 int saved_errno = errno;