1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
#include "filesystem.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <io.h>
static FsType windows_file_attributes_to_type(DWORD attrs) {
if (attrs == INVALID_FILE_ATTRIBUTES)
return FS_NON_EXISTENT;
else if (attrs & FILE_ATTRIBUTE_DIRECTORY)
return FS_DIRECTORY;
else
return FS_FILE;
}
FsType fs_path_type(char const *path) {
return windows_file_attributes_to_type(GetFileAttributesA(path));
}
FsPermission fs_path_permission(char const *path) {
FsPermission permission = 0;
if (_access(path, 04) == 0) permission |= FS_PERMISSION_READ;
if (_access(path, 02) == 0) permission |= FS_PERMISSION_WRITE;
return permission;
}
bool fs_file_exists(char const *path) {
return fs_path_type(path) == FS_FILE;
}
FsDirectoryEntry **fs_list_directory(char const *dirname) {
char file_pattern[256] = {0};
FsDirectoryEntry **files = NULL;
WIN32_FIND_DATA find_data;
HANDLE fhandle;
assert(*dirname);
sprintf_s(file_pattern, sizeof file_pattern, "%s%s*", dirname,
dirname[strlen(dirname) - 1] == PATH_SEPARATOR ? "" : PATH_SEPARATOR_STR);
fhandle = FindFirstFileA(file_pattern, &find_data);
if (fhandle != INVALID_HANDLE_VALUE) {
// first, figure out number of files
int nfiles = 1, idx = 0;
while (FindNextFile(fhandle, &find_data)) {
++nfiles;
}
FindClose(fhandle);
// now, fill out files array
files = calloc(nfiles + 1, sizeof *files);
if (files) {
fhandle = FindFirstFileA(file_pattern, &find_data);
if (fhandle != INVALID_HANDLE_VALUE) {
do {
if (idx < nfiles) {
const char *filename = find_data.cFileName;
size_t len = strlen(filename);
FsDirectoryEntry *entry = calloc(1, sizeof *entry + len + 1);
if (entry) {
DWORD attrs = find_data.dwFileAttributes;
entry->type = windows_file_attributes_to_type(attrs);
memcpy(entry->name, filename, len);
files[idx++] = entry;
} else break; // stop now
}
} while (FindNextFile(fhandle, &find_data));
FindClose(fhandle);
}
}
}
return files;
}
int fs_mkdir(char const *path) {
if (CreateDirectoryA(path, NULL)) {
// directory created successfully
return 1;
} else {
if (GetLastError() == ERROR_ALREADY_EXISTS) // directory already exists
return 0;
else
return -1; // some other error
}
}
int fs_get_cwd(char *buf, size_t buflen) {
assert(buf && buflen);
DWORD pathlen = GetCurrentDirectory((DWORD)buflen, buf);
if (pathlen == 0) {
return -1;
} else if (pathlen < buflen) { // it's confusing, but this is < and not <=
return 1;
} else {
return 0;
}
}
|
