1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2020 Keith Packard
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33 * OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #define _GNU_SOURCE
37 #include "semihost-private.h"
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <sys/time.h>
41 #include <fcntl.h>
42 #include <unistd.h>
43 #include <string.h>
44 #include <errno.h>
45
46 struct timeval __semihost_write_time, __semihost_creat_time;
47
48 int
fstat(int fd,struct stat * sbuf)49 fstat (int fd, struct stat *sbuf )
50 {
51 fd = _map_stdio(fd);
52
53 int size;
54
55 if (fd > 0)
56 size = sys_semihost_flen(fd);
57 else
58 size = -1;
59
60 if (size > 0) {
61 sbuf->st_size = size;
62 sbuf->st_blksize = 4096;
63 sbuf->st_mode = S_IFREG;
64 } else {
65 sbuf->st_size = 0;
66 sbuf->st_blksize = 0;
67 sbuf->st_mode = S_IFCHR;
68 }
69 sbuf->st_ctime = __semihost_creat_time.tv_sec > __semihost_write_time.tv_sec ?
70 __semihost_creat_time.tv_sec : __semihost_write_time.tv_sec;
71 sbuf->st_mtime = __semihost_write_time.tv_sec;
72 return 0;
73 }
74
75 int
fstat64(int fd,struct stat64 * sbuf)76 fstat64 (int fd, struct stat64 *sbuf )
77 {
78 fd = _map_stdio(fd);
79
80 int size;
81
82 if (fd > 0)
83 size = sys_semihost_flen(fd);
84 else
85 size = -1;
86
87 if (size > 0) {
88 sbuf->st_size = size;
89 sbuf->st_blksize = 4096;
90 sbuf->st_mode = S_IFREG;
91 } else {
92 sbuf->st_size = 0;
93 sbuf->st_blksize = 0;
94 sbuf->st_mode = S_IFCHR;
95 }
96 sbuf->st_ctime = __semihost_creat_time.tv_sec > __semihost_write_time.tv_sec ?
97 __semihost_creat_time.tv_sec : __semihost_write_time.tv_sec;
98 sbuf->st_mtime = __semihost_write_time.tv_sec;
99 return 0;
100 }
101
