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 <stdlib.h>
37 #include <semihost.h>
38 
39 #define TEST_FILE_NAME	"SEMIFLEN.TXT"
40 #define TEST_STRING	"hello, world"
41 #define TEST_STRING_LEN	12
42 
43 int
main(void)44 main(void)
45 {
46 	int		fd;
47 	uintptr_t	not_written;
48 	int		code = 0;
49 	int		ret;
50 	uintptr_t	len;
51 
52 	fd = sys_semihost_open(TEST_FILE_NAME, SH_OPEN_W);
53 	if (fd < 0) {
54 		printf("open %s failed\n", TEST_FILE_NAME);
55 		exit(1);
56 	}
57 	not_written = sys_semihost_write(fd, TEST_STRING, TEST_STRING_LEN);
58 	if (not_written != 0) {
59 		printf("write failed %ld %d\n", (long) not_written, sys_semihost_errno());
60 		code = 2;
61 		goto bail1;
62 	}
63 	ret = sys_semihost_close(fd);
64 	fd = -1;
65 	if (ret != 0) {
66 		printf("close failed %d %d\n", ret, sys_semihost_errno());
67 		code = 3;
68 		goto bail1;
69 	}
70 	fd = sys_semihost_open(TEST_FILE_NAME, SH_OPEN_R);
71 	if (fd < 0) {
72 		printf("open %s failed\n", TEST_FILE_NAME);
73 		code = 4;
74 		goto bail1;
75 	}
76 	len = sys_semihost_flen(fd);
77 	if (len != TEST_STRING_LEN) {
78 		printf("flen failed %ld != %ld\n", (long) len, (long) TEST_STRING_LEN);
79 		code = 5;
80 		goto bail1;
81 	}
82 bail1:
83 	if (fd >= 0)
84 		(void) sys_semihost_close(fd);
85 	(void) sys_semihost_remove(TEST_FILE_NAME);
86 	exit(code);
87 }
88