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7823a941 | 1 | /* File-I/O functions for GDB, the GNU debugger. |
791c0056 | 2 | |
213516ef | 3 | Copyright (C) 2003-2023 Free Software Foundation, Inc. |
791c0056 GB |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
1a5c2598 TT |
20 | #ifndef COMMON_FILEIO_H |
21 | #define COMMON_FILEIO_H | |
791c0056 | 22 | |
7f3647e2 | 23 | #include <sys/stat.h> |
791c0056 | 24 | |
198f946f SM |
25 | /* The following flags are defined to be independent of the host |
26 | as well as the target side implementation of these constants. | |
27 | All constants are defined with a leading FILEIO_ in the name | |
28 | to allow the usage of these constants together with the | |
29 | corresponding implementation dependent constants in one module. */ | |
30 | ||
31 | /* open(2) flags */ | |
32 | #define FILEIO_O_RDONLY 0x0 | |
33 | #define FILEIO_O_WRONLY 0x1 | |
34 | #define FILEIO_O_RDWR 0x2 | |
35 | #define FILEIO_O_APPEND 0x8 | |
36 | #define FILEIO_O_CREAT 0x200 | |
37 | #define FILEIO_O_TRUNC 0x400 | |
38 | #define FILEIO_O_EXCL 0x800 | |
39 | #define FILEIO_O_SUPPORTED (FILEIO_O_RDONLY | FILEIO_O_WRONLY| \ | |
40 | FILEIO_O_RDWR | FILEIO_O_APPEND| \ | |
41 | FILEIO_O_CREAT | FILEIO_O_TRUNC| \ | |
42 | FILEIO_O_EXCL) | |
43 | ||
44 | /* mode_t bits */ | |
45 | #define FILEIO_S_IFREG 0100000 | |
46 | #define FILEIO_S_IFDIR 040000 | |
47 | #define FILEIO_S_IFCHR 020000 | |
48 | #define FILEIO_S_IRUSR 0400 | |
49 | #define FILEIO_S_IWUSR 0200 | |
50 | #define FILEIO_S_IXUSR 0100 | |
51 | #define FILEIO_S_IRWXU 0700 | |
52 | #define FILEIO_S_IRGRP 040 | |
53 | #define FILEIO_S_IWGRP 020 | |
54 | #define FILEIO_S_IXGRP 010 | |
55 | #define FILEIO_S_IRWXG 070 | |
56 | #define FILEIO_S_IROTH 04 | |
57 | #define FILEIO_S_IWOTH 02 | |
58 | #define FILEIO_S_IXOTH 01 | |
59 | #define FILEIO_S_IRWXO 07 | |
60 | #define FILEIO_S_SUPPORTED (FILEIO_S_IFREG|FILEIO_S_IFDIR| \ | |
61 | FILEIO_S_IRWXU|FILEIO_S_IRWXG| \ | |
62 | FILEIO_S_IRWXO) | |
63 | ||
64 | /* lseek(2) flags */ | |
65 | #define FILEIO_SEEK_SET 0 | |
66 | #define FILEIO_SEEK_CUR 1 | |
67 | #define FILEIO_SEEK_END 2 | |
68 | ||
69 | /* errno values */ | |
b872057a SM |
70 | enum fileio_error |
71 | { | |
72 | FILEIO_SUCCESS = 0, | |
73 | FILEIO_EPERM = 1, | |
74 | FILEIO_ENOENT = 2, | |
75 | FILEIO_EINTR = 4, | |
76 | FILEIO_EIO = 5, | |
77 | FILEIO_EBADF = 9, | |
78 | FILEIO_EACCES = 13, | |
79 | FILEIO_EFAULT = 14, | |
80 | FILEIO_EBUSY = 16, | |
81 | FILEIO_EEXIST = 17, | |
82 | FILEIO_ENODEV = 19, | |
83 | FILEIO_ENOTDIR = 20, | |
84 | FILEIO_EISDIR = 21, | |
85 | FILEIO_EINVAL = 22, | |
86 | FILEIO_ENFILE = 23, | |
87 | FILEIO_EMFILE = 24, | |
88 | FILEIO_EFBIG = 27, | |
89 | FILEIO_ENOSPC = 28, | |
90 | FILEIO_ESPIPE = 29, | |
91 | FILEIO_EROFS = 30, | |
92 | FILEIO_ENOSYS = 88, | |
93 | FILEIO_ENAMETOOLONG = 91, | |
94 | FILEIO_EUNKNOWN = 9999, | |
95 | }; | |
198f946f SM |
96 | |
97 | #define FIO_INT_LEN 4 | |
98 | #define FIO_UINT_LEN 4 | |
99 | #define FIO_MODE_LEN 4 | |
100 | #define FIO_TIME_LEN 4 | |
101 | #define FIO_LONG_LEN 8 | |
102 | #define FIO_ULONG_LEN 8 | |
103 | ||
104 | typedef char fio_int_t[FIO_INT_LEN]; | |
105 | typedef char fio_uint_t[FIO_UINT_LEN]; | |
106 | typedef char fio_mode_t[FIO_MODE_LEN]; | |
107 | typedef char fio_time_t[FIO_TIME_LEN]; | |
108 | typedef char fio_long_t[FIO_LONG_LEN]; | |
109 | typedef char fio_ulong_t[FIO_ULONG_LEN]; | |
110 | ||
111 | /* Struct stat as used in protocol. For complete independence | |
112 | of host/target systems, it's defined as an array with offsets | |
113 | to the members. */ | |
114 | ||
115 | struct fio_stat | |
116 | { | |
117 | fio_uint_t fst_dev; | |
118 | fio_uint_t fst_ino; | |
119 | fio_mode_t fst_mode; | |
120 | fio_uint_t fst_nlink; | |
121 | fio_uint_t fst_uid; | |
122 | fio_uint_t fst_gid; | |
123 | fio_uint_t fst_rdev; | |
124 | fio_ulong_t fst_size; | |
125 | fio_ulong_t fst_blksize; | |
126 | fio_ulong_t fst_blocks; | |
127 | fio_time_t fst_atime; | |
128 | fio_time_t fst_mtime; | |
129 | fio_time_t fst_ctime; | |
130 | }; | |
131 | ||
132 | struct fio_timeval | |
133 | { | |
134 | fio_time_t ftv_sec; | |
135 | fio_long_t ftv_usec; | |
136 | }; | |
137 | ||
7823a941 | 138 | /* Convert a host-format errno value to a File-I/O error number. */ |
b88bb450 | 139 | |
b872057a | 140 | extern fileio_error host_to_fileio_error (int error); |
b88bb450 | 141 | |
517a63c2 SM |
142 | /* Convert a File-I/O error number to a host-format errno value. */ |
143 | ||
144 | extern int fileio_error_to_host (fileio_error errnum); | |
145 | ||
819843c7 GB |
146 | /* Convert File-I/O open flags FFLAGS to host format, storing |
147 | the result in *FLAGS. Return 0 on success, -1 on error. */ | |
148 | ||
149 | extern int fileio_to_host_openflags (int fflags, int *flags); | |
150 | ||
3ac2e371 GB |
151 | /* Convert File-I/O mode FMODE to host format, storing |
152 | the result in *MODE. Return 0 on success, -1 on error. */ | |
153 | ||
154 | extern int fileio_to_host_mode (int fmode, mode_t *mode); | |
155 | ||
7823a941 GB |
156 | /* Pack a host-format integer into a byte buffer in big-endian |
157 | format. BYTES specifies the size of the integer to pack in | |
158 | bytes. */ | |
791c0056 GB |
159 | |
160 | static inline void | |
7823a941 | 161 | host_to_bigendian (LONGEST num, char *buf, int bytes) |
791c0056 GB |
162 | { |
163 | int i; | |
164 | ||
165 | for (i = 0; i < bytes; ++i) | |
166 | buf[i] = (num >> (8 * (bytes - i - 1))) & 0xff; | |
167 | } | |
168 | ||
169 | /* Pack a host-format integer into an fio_uint_t. */ | |
170 | ||
171 | static inline void | |
7823a941 | 172 | host_to_fileio_uint (long num, fio_uint_t fnum) |
791c0056 | 173 | { |
7823a941 | 174 | host_to_bigendian ((LONGEST) num, (char *) fnum, 4); |
791c0056 GB |
175 | } |
176 | ||
177 | /* Pack a host-format time_t into an fio_time_t. */ | |
178 | ||
179 | static inline void | |
7823a941 | 180 | host_to_fileio_time (time_t num, fio_time_t fnum) |
791c0056 | 181 | { |
7823a941 | 182 | host_to_bigendian ((LONGEST) num, (char *) fnum, 4); |
791c0056 GB |
183 | } |
184 | ||
185 | /* Pack a host-format struct stat into a struct fio_stat. */ | |
186 | ||
7823a941 | 187 | extern void host_to_fileio_stat (struct stat *st, struct fio_stat *fst); |
791c0056 | 188 | |
1a5c2598 | 189 | #endif /* COMMON_FILEIO_H */ |