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8dd6dfdc MV |
1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | ||
42 | #include "libguile/__scm.h" | |
43 | ||
44 | #include <windows.h> | |
45 | #include <stdio.h> | |
46 | #include <string.h> | |
47 | ||
21e11a3b | 48 | #include "win32-dirent.h" |
8dd6dfdc MV |
49 | |
50 | DIR * | |
51 | opendir (const char * name) | |
52 | { | |
53 | DIR *dir; | |
54 | HANDLE hnd; | |
55 | char *file; | |
56 | WIN32_FIND_DATA find; | |
57 | ||
58 | if (!name || !*name) | |
59 | return NULL; | |
60 | file = malloc (strlen (name) + 3); | |
61 | strcpy (file, name); | |
62 | if (file[strlen (name) - 1] != '/' && file[strlen (name) - 1] != '\\') | |
63 | strcat (file, "/*"); | |
64 | else | |
65 | strcat (file, "*"); | |
66 | ||
67 | if ((hnd = FindFirstFile (file, &find)) == INVALID_HANDLE_VALUE) | |
68 | { | |
69 | free (file); | |
70 | return NULL; | |
71 | } | |
72 | ||
73 | dir = malloc (sizeof (DIR)); | |
74 | dir->mask = file; | |
75 | dir->fd = (int) hnd; | |
76 | dir->data = malloc (sizeof (WIN32_FIND_DATA)); | |
77 | dir->allocation = sizeof (WIN32_FIND_DATA); | |
78 | dir->size = dir->allocation; | |
79 | dir->filepos = 0; | |
80 | memcpy (dir->data, &find, sizeof (WIN32_FIND_DATA)); | |
81 | return dir; | |
82 | } | |
83 | ||
84 | struct dirent * | |
85 | readdir (DIR * dir) | |
86 | { | |
87 | static struct dirent entry; | |
88 | WIN32_FIND_DATA *find; | |
89 | ||
90 | entry.d_ino = 0; | |
91 | entry.d_type = 0; | |
92 | find = (WIN32_FIND_DATA *) dir->data; | |
93 | ||
94 | if (dir->filepos) | |
95 | { | |
96 | if (!FindNextFile ((HANDLE) dir->fd, find)) | |
97 | return NULL; | |
98 | } | |
99 | ||
100 | entry.d_off = dir->filepos; | |
101 | strncpy (entry.d_name, find->cFileName, sizeof (entry.d_name)); | |
102 | entry.d_reclen = strlen (find->cFileName); | |
103 | dir->filepos++; | |
104 | return &entry; | |
105 | } | |
106 | ||
107 | int | |
108 | closedir (DIR * dir) | |
109 | { | |
110 | HANDLE hnd = (HANDLE) dir->fd; | |
111 | free (dir->data); | |
112 | free (dir->mask); | |
113 | free (dir); | |
114 | return FindClose (hnd) ? 0 : -1; | |
115 | } | |
116 | ||
117 | void | |
118 | rewinddir (DIR * dir) | |
119 | { | |
120 | HANDLE hnd = (HANDLE) dir->fd; | |
121 | WIN32_FIND_DATA *find = (WIN32_FIND_DATA *) dir->data; | |
122 | ||
123 | FindClose (hnd); | |
124 | hnd = FindFirstFile (dir->mask, find); | |
125 | dir->fd = (int) hnd; | |
126 | dir->filepos = 0; | |
127 | } | |
128 | ||
129 | void | |
130 | seekdir (DIR * dir, off_t offset) | |
131 | { | |
132 | off_t n; | |
133 | ||
134 | rewinddir (dir); | |
135 | for (n = 0; n < offset; n++) | |
136 | { | |
137 | if (FindNextFile ((HANDLE) dir->fd, (WIN32_FIND_DATA *) dir->data)) | |
138 | dir->filepos++; | |
139 | } | |
140 | } | |
141 | ||
142 | off_t | |
143 | telldir (DIR * dir) | |
144 | { | |
145 | return dir->filepos; | |
146 | } | |
147 | ||
148 | int | |
149 | dirfd (DIR * dir) | |
150 | { | |
151 | return dir->fd; | |
152 | } |