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 #include "semihost-private.h"
37 #include <sys/types.h>
38 #include <sys/stat.h>
39 #include <sys/time.h>
40 #include <fcntl.h>
41 #include <unistd.h>
42 #include <string.h>
43 #include <errno.h>
44
45 struct timeval __semihost_write_time, __semihost_creat_time;
46
47 int
fstat(int fd,struct stat * sbuf)48 fstat (int fd, struct stat *sbuf )
49 {
50 fd = _map_stdio(fd);
51
52 int size;
53
54 if (fd > 0)
55 size = sys_semihost_flen(fd);
56 else
57 size = -1;
58
59 if (size > 0) {
60 sbuf->st_size = size;
61 sbuf->st_blksize = 4096;
62 sbuf->st_mode = S_IFREG;
63 } else {
64 sbuf->st_size = 0;
65 sbuf->st_blksize = 0;
66 sbuf->st_mode = S_IFCHR;
67 }
68 sbuf->st_ctime = __semihost_creat_time.tv_sec > __semihost_write_time.tv_sec ?
69 __semihost_creat_time.tv_sec : __semihost_write_time.tv_sec;
70 sbuf->st_mtime = __semihost_write_time.tv_sec;
71 return 0;
72 }
73
