1 /* sys/stat.h supplied with MSVCRT uses too narrow data types for
2 inode and user/group id, so we replace them with our own.
3
4 Copyright (C) 2008-2023 Free Software Foundation, Inc.
5
6 This file is part of GNU Emacs.
7
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or (at
11 your option) any later version.
12
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
20
21 #ifndef INC_SYS_STAT_H_
22 #define INC_SYS_STAT_H_
23
24 #ifdef __MINGW32__
25 # include <_mingw.h>
26 #endif
27
28 /* Only MinGW 3.13 and later has __MINGW_NOTHROW. */
29 #ifndef __MINGW_NOTHROW
30 # define __MINGW_NOTHROW
31 #endif
32
33 /* Prevent the MinGW stat.h header from being included, ever. */
34 #ifndef _SYS_STAT_H
35 # define _SYS_STAT_H
36 #endif
37 #ifndef _INC_STAT_H
38 # define _INC_STAT_H
39 #endif
40
41 #include <sys/types.h>
42 #include <time.h>
43
44 #define S_IFMT 0xF800
45
46 #define S_IFREG 0x8000
47 #define S_IFDIR 0x4000
48 #define S_IFBLK 0x3000
49 #define S_IFCHR 0x2000
50 #define S_IFIFO 0x1000
51 #define S_IFLNK 0x0800
52
53 #define S_IREAD 0x0100
54 #define S_IWRITE 0x0080
55 #define S_IEXEC 0x0040
56
57 #define S_IRUSR S_IREAD
58 #define S_IWUSR S_IWRITE
59 #define S_IXUSR S_IEXEC
60 #define S_IRWXU (S_IREAD | S_IWRITE | S_IEXEC)
61
62 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
63 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
64 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
65 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
66 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
67 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
68
69 /* These don't exist on Windows, but lib/filemode.c wants them. */
70 #define S_ISUID 0
71 #define S_ISGID 0
72 #define S_ISVTX 0
73 #define S_IRGRP (S_IRUSR >> 3)
74 #define S_IROTH (S_IRUSR >> 6)
75 #define S_IWGRP (S_IWUSR >> 3)
76 #define S_IWOTH (S_IWUSR >> 6)
77 #define S_IXGRP (S_IXUSR >> 3)
78 #define S_IXOTH (S_IXUSR >> 6)
79
80 #define S_ISSOCK(m) 0
81 #define S_ISCTG(p) 0
82 #define S_ISDOOR(m) 0
83 #define S_ISMPB(m) 0
84 #define S_ISMPC(m) 0
85 #define S_ISMPX(m) 0
86 #define S_ISNWK(m) 0
87 #define S_ISPORT(m) 0
88 #define S_ISWHT(m) 0
89 #define S_TYPEISMQ(p) 0
90 #define S_TYPEISSEM(p) 0
91 #define S_TYPEISSHM(p) 0
92 #define S_TYPEISTMO(p) 0
93
94 #define UTIME_NOW (-1)
95 #define UTIME_OMIT (-2)
96
97 struct stat {
98 unsigned __int64 st_ino; /* ino_t in sys/types.h is too narrow */
99 dev_t st_dev;
100 unsigned short st_mode;
101 short st_nlink;
102 unsigned st_uid; /* Vista's TrustedInstaller has a very large RID */
103 unsigned st_gid;
104 unsigned __int64 st_size;
105 dev_t st_rdev;
106 time_t st_atime;
107 time_t st_mtime;
108 time_t st_ctime;
109 char st_uname[260];
110 char st_gname[260];
111 };
112
113 /* These are here to avoid compiler warnings when using wchar.h. */
114 struct _stat
115 {
116 _dev_t st_dev; /* Equivalent to drive number 0=A 1=B ... */
117 _ino_t st_ino; /* Always zero ? */
118 _mode_t st_mode; /* See above constants */
119 short st_nlink; /* Number of links. */
120 short st_uid; /* User: Maybe significant on NT ? */
121 short st_gid; /* Group: Ditto */
122 _dev_t st_rdev; /* Seems useless (not even filled in) */
123 _off_t st_size; /* File size in bytes */
124 time_t st_atime; /* Accessed date (always 00:00 hrs local
125 * on FAT) */
126 time_t st_mtime; /* Modified time */
127 time_t st_ctime; /* Creation time */
128 };
129
130 #if defined (__MSVCRT__)
131 struct _stati64 {
132 _dev_t st_dev;
133 _ino_t st_ino;
134 _mode_t st_mode;
135 short st_nlink;
136 short st_uid;
137 short st_gid;
138 _dev_t st_rdev;
139 __int64 st_size;
140 time_t st_atime;
141 time_t st_mtime;
142 time_t st_ctime;
143 };
144 #endif
145
146 /* Internal variable for asking 'stat'/'lstat' to produce accurate
147 info about owner and group of files. */
148 extern int w32_stat_get_owner_group;
149
150 /* Prevent redefinition by other headers, e.g. wchar.h. */
151 #define _STAT_DEFINED
152 /* This prevents definition in MinGW's wchar.h of inline functions
153 that use struct _stat64i32 etc., which we don't define and don't
154 support in our implementation of 'stat' and 'fstat'. If we don't
155 prevent definition of those inline functions, any program (e.g.,
156 test programs run by configure) that includes both wchar.h and
157 sys/stat.h will fail to compile. */
158 #define _WSTAT_DEFINED
159
160 int __cdecl __MINGW_NOTHROW fstat (int, struct stat*);
161 int __cdecl __MINGW_NOTHROW stat (const char*, struct stat*);
162 int __cdecl __MINGW_NOTHROW lstat (const char*, struct stat*);
163 int __cdecl __MINGW_NOTHROW fstatat (int, char const *,
164 struct stat *, int);
165 int __cdecl __MINGW_NOTHROW chmod (const char*, int);
166
167 /* Provide prototypes of library functions that are emulated on w32
168 and whose prototypes are usually found in sys/stat.h on POSIX
169 platforms. */
170 extern int utimensat (int, const char *, struct timespec const[2], int);
171
172 #endif /* INC_SYS_STAT_H_ */