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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* File-I/O functions for GDB, the GNU debugger.
Copyright (C) 2003-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef COMMON_FILEIO_H
#define COMMON_FILEIO_H
#include <sys/stat.h>
/* The following flags are defined to be independent of the host
as well as the target side implementation of these constants.
All constants are defined with a leading FILEIO_ in the name
to allow the usage of these constants together with the
corresponding implementation dependent constants in one module. */
/* open(2) flags */
#define FILEIO_O_RDONLY 0x0
#define FILEIO_O_WRONLY 0x1
#define FILEIO_O_RDWR 0x2
#define FILEIO_O_APPEND 0x8
#define FILEIO_O_CREAT 0x200
#define FILEIO_O_TRUNC 0x400
#define FILEIO_O_EXCL 0x800
#define FILEIO_O_SUPPORTED (FILEIO_O_RDONLY | FILEIO_O_WRONLY| \
FILEIO_O_RDWR | FILEIO_O_APPEND| \
FILEIO_O_CREAT | FILEIO_O_TRUNC| \
FILEIO_O_EXCL)
/* mode_t bits */
#define FILEIO_S_IFREG 0100000
#define FILEIO_S_IFDIR 040000
#define FILEIO_S_IFCHR 020000
#define FILEIO_S_IRUSR 0400
#define FILEIO_S_IWUSR 0200
#define FILEIO_S_IXUSR 0100
#define FILEIO_S_IRWXU 0700
#define FILEIO_S_IRGRP 040
#define FILEIO_S_IWGRP 020
#define FILEIO_S_IXGRP 010
#define FILEIO_S_IRWXG 070
#define FILEIO_S_IROTH 04
#define FILEIO_S_IWOTH 02
#define FILEIO_S_IXOTH 01
#define FILEIO_S_IRWXO 07
#define FILEIO_S_SUPPORTED (FILEIO_S_IFREG|FILEIO_S_IFDIR| \
FILEIO_S_IRWXU|FILEIO_S_IRWXG| \
FILEIO_S_IRWXO)
/* lseek(2) flags */
#define FILEIO_SEEK_SET 0
#define FILEIO_SEEK_CUR 1
#define FILEIO_SEEK_END 2
/* errno values */
enum fileio_error
{
FILEIO_SUCCESS = 0,
FILEIO_EPERM = 1,
FILEIO_ENOENT = 2,
FILEIO_EINTR = 4,
FILEIO_EIO = 5,
FILEIO_EBADF = 9,
FILEIO_EACCES = 13,
FILEIO_EFAULT = 14,
FILEIO_EBUSY = 16,
FILEIO_EEXIST = 17,
FILEIO_ENODEV = 19,
FILEIO_ENOTDIR = 20,
FILEIO_EISDIR = 21,
FILEIO_EINVAL = 22,
FILEIO_ENFILE = 23,
FILEIO_EMFILE = 24,
FILEIO_EFBIG = 27,
FILEIO_ENOSPC = 28,
FILEIO_ESPIPE = 29,
FILEIO_EROFS = 30,
FILEIO_ENOSYS = 88,
FILEIO_ENAMETOOLONG = 91,
FILEIO_EUNKNOWN = 9999,
};
#define FIO_INT_LEN 4
#define FIO_UINT_LEN 4
#define FIO_MODE_LEN 4
#define FIO_TIME_LEN 4
#define FIO_LONG_LEN 8
#define FIO_ULONG_LEN 8
typedef char fio_int_t[FIO_INT_LEN];
typedef char fio_uint_t[FIO_UINT_LEN];
typedef char fio_mode_t[FIO_MODE_LEN];
typedef char fio_time_t[FIO_TIME_LEN];
typedef char fio_long_t[FIO_LONG_LEN];
typedef char fio_ulong_t[FIO_ULONG_LEN];
/* Struct stat as used in protocol. For complete independence
of host/target systems, it's defined as an array with offsets
to the members. */
struct fio_stat
{
fio_uint_t fst_dev;
fio_uint_t fst_ino;
fio_mode_t fst_mode;
fio_uint_t fst_nlink;
fio_uint_t fst_uid;
fio_uint_t fst_gid;
fio_uint_t fst_rdev;
fio_ulong_t fst_size;
fio_ulong_t fst_blksize;
fio_ulong_t fst_blocks;
fio_time_t fst_atime;
fio_time_t fst_mtime;
fio_time_t fst_ctime;
};
struct fio_timeval
{
fio_time_t ftv_sec;
fio_long_t ftv_usec;
};
/* Convert a host-format errno value to a File-I/O error number. */
extern fileio_error host_to_fileio_error (int error);
/* Convert a File-I/O error number to a host-format errno value. */
extern int fileio_error_to_host (fileio_error errnum);
/* Convert File-I/O open flags FFLAGS to host format, storing
the result in *FLAGS. Return 0 on success, -1 on error. */
extern int fileio_to_host_openflags (int fflags, int *flags);
/* Convert File-I/O mode FMODE to host format, storing
the result in *MODE. Return 0 on success, -1 on error. */
extern int fileio_to_host_mode (int fmode, mode_t *mode);
/* Pack a host-format integer into a byte buffer in big-endian
format. BYTES specifies the size of the integer to pack in
bytes. */
static inline void
host_to_bigendian (LONGEST num, char *buf, int bytes)
{
int i;
for (i = 0; i < bytes; ++i)
buf[i] = (num >> (8 * (bytes - i - 1))) & 0xff;
}
/* Pack a host-format integer into an fio_uint_t. */
static inline void
host_to_fileio_uint (long num, fio_uint_t fnum)
{
host_to_bigendian ((LONGEST) num, (char *) fnum, 4);
}
/* Pack a host-format time_t into an fio_time_t. */
static inline void
host_to_fileio_time (time_t num, fio_time_t fnum)
{
host_to_bigendian ((LONGEST) num, (char *) fnum, 4);
}
/* Pack a host-format struct stat into a struct fio_stat. */
extern void host_to_fileio_stat (struct stat *st, struct fio_stat *fst);
#endif /* COMMON_FILEIO_H */
|
