1/* File-I/O functions for GDB, the GNU debugger.
2
3   Copyright (C) 2003-2020 Free Software Foundation, Inc.
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
20#ifndef COMMON_FILEIO_H
21#define COMMON_FILEIO_H
22
23#include "gdb/fileio.h"
24#include <sys/stat.h>
25
26/* Convert a host-format errno value to a File-I/O error number.  */
27
28extern int host_to_fileio_error (int error);
29
30/* Convert File-I/O open flags FFLAGS to host format, storing
31   the result in *FLAGS.  Return 0 on success, -1 on error.  */
32
33extern int fileio_to_host_openflags (int fflags, int *flags);
34
35/* Convert File-I/O mode FMODE to host format, storing
36   the result in *MODE.  Return 0 on success, -1 on error.  */
37
38extern int fileio_to_host_mode (int fmode, mode_t *mode);
39
40/* Pack a host-format integer into a byte buffer in big-endian
41   format.  BYTES specifies the size of the integer to pack in
42   bytes.  */
43
44static inline void
45host_to_bigendian (LONGEST num, char *buf, int bytes)
46{
47  int i;
48
49  for (i = 0; i < bytes; ++i)
50    buf[i] = (num >> (8 * (bytes - i - 1))) & 0xff;
51}
52
53/* Pack a host-format integer into an fio_uint_t.  */
54
55static inline void
56host_to_fileio_uint (long num, fio_uint_t fnum)
57{
58  host_to_bigendian ((LONGEST) num, (char *) fnum, 4);
59}
60
61/* Pack a host-format time_t into an fio_time_t.  */
62
63static inline void
64host_to_fileio_time (time_t num, fio_time_t fnum)
65{
66  host_to_bigendian ((LONGEST) num, (char *) fnum, 4);
67}
68
69/* Pack a host-format struct stat into a struct fio_stat.  */
70
71extern void host_to_fileio_stat (struct stat *st, struct fio_stat *fst);
72
73#endif /* COMMON_FILEIO_H */
74