1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#ifndef __MINGW_FIX_STAT_H
8#define __MINGW_FIX_STAT_H
9
10char* __mingw_fix_stat_path (const char* _path);
11wchar_t* __mingw_fix_wstat_path (const wchar_t* _path);
12int __mingw_fix_stat_finish(int ret, const void *orig_path, void *used_path,
13 unsigned short mode);
14int __mingw_fix_fstat_finish(int ret, int fd, unsigned short *mode);
15int __mingw_fix_wstat_fallback_fd(int ret, const wchar_t *filename, unsigned short mode);
16int __mingw_fix_stat_fallback_fd(int ret, const char *filename, unsigned short mode);
17
18#define __MINGW_FIXED_FSTAT(fstat_func, fd, obj) ({ \
19 int _fstat_ret = fstat_func(fd, obj); \
20 _fstat_ret = __mingw_fix_fstat_finish(_fstat_ret, fd, &(obj)->st_mode); \
21 _fstat_ret; \
22})
23
24#define __MINGW_CHOOSE_CHAR_WCHART_EXPR(var, char_expr, wchart_expr, other_expr) \
25 __builtin_choose_expr(__builtin_types_compatible_p(typeof(var), char), char_expr, \
26 __builtin_choose_expr(__builtin_types_compatible_p(typeof(var), wchar_t), wchart_expr, \
27 other_expr))
28
29#define __MINGW_PATH_PTR_TYPE(path) \
30 typeof(__MINGW_CHOOSE_CHAR_WCHART_EXPR((path)[0], (char*)0, (wchar_t*)0, (void)0))
31
32#define __MINGW_FIX_STAT_PATH(path) \
33 __MINGW_CHOOSE_CHAR_WCHART_EXPR((path)[0], __mingw_fix_stat_path, __mingw_fix_wstat_path, NULL)(path)
34
35#define __MINGW_FIX_STAT_FALLBACK_FD(ret, path, mode) \
36 __MINGW_CHOOSE_CHAR_WCHART_EXPR((path)[0], __mingw_fix_stat_fallback_fd, __mingw_fix_wstat_fallback_fd, NULL)((ret), (path), (mode))
37
38#define __MINGW_CREATE_FILE(path, ...) \
39 __MINGW_CHOOSE_CHAR_WCHART_EXPR((path)[0], CreateFileA, CreateFileW, NULL)((path), ##__VA_ARGS__)
40
41#define __MINGW_STR_PBRK(path, accept) \
42 __MINGW_CHOOSE_CHAR_WCHART_EXPR((path)[0], strpbrk, wcspbrk, NULL)((path), __MINGW_CHOOSE_CHAR_WCHART_EXPR((path)[0], accept, L##accept, NULL))
43
44#define __MINGW_FIXED_STAT(fstat_func, stat_func, filename, obj) ({ \
45 /* First call CRT _stat function with mingw path correction */ \
46 int _stat_ret; \
47 __MINGW_PATH_PTR_TYPE(filename) path = __MINGW_FIX_STAT_PATH(filename); \
48 if (path == NULL && (filename) != NULL) { \
49 _stat_ret = -1; \
50 } else { \
51 _stat_ret = (stat_func)(path, (obj)); \
52 _stat_ret = __mingw_fix_stat_finish(_stat_ret, (filename), path, (obj)->st_mode); \
53 /* If the CRT _stat function failed then fallback to mingw fstat function */ \
54 int _stat_fd = __MINGW_FIX_STAT_FALLBACK_FD(_stat_ret, (filename), (obj)->st_mode); \
55 if (_stat_fd >= 0) { \
56 _stat_ret = fstat_func(_stat_fd, (void*)(obj)); \
57 int _stat_errno = errno; \
58 close(_stat_fd); \
59 errno = _stat_errno; \
60 } \
61 } \
62 _stat_ret; \
63})
64
65#endif