1 /*
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright © 2021 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 <string.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <stdbool.h>
41 
42 int
check(char * label,bool ok,int expect,int got)43 check(char *label, bool ok, int expect, int got)
44 {
45     if (!ok) {
46         fprintf(stderr, "%s: expect %d got %d\n", label, expect, got);
47         return 1;
48     }
49     return 0;
50 }
51 
52 int
check_s(char * label,bool ok,size_t expect,size_t got)53 check_s(char *label, bool ok, size_t expect, size_t got)
54 {
55     if (!ok) {
56         fprintf(stderr, "%s: expect %zd got %zd\n", label, expect, got);
57         return 1;
58     }
59     return 0;
60 }
61 
62 int
main(void)63 main(void)
64 {
65     int a;
66     size_t s;
67     int ret = 0;
68 
69     a = putc('X', stdout);
70     ret += check("putc", a == 'X', 'X', a);
71 
72     a = putchar('Y');
73     ret += check("putchar", a == 'Y', 'Y', a);
74 
75     a = fputc('Z', stdout);
76     ret += check("fputc", a == 'Z', 'Z', a);
77 
78     a = puts("puts");
79     ret += check ("puts", a >= 0, 0, a);
80 
81     a = fputs("fputs\n", stdout);
82     ret += check ("fputs", a >= 0, 0, a);
83 
84     s = fwrite("fwrite 1\n", 1, 9, stdout);
85     ret += check_s ("fwrite 1", s == 9, 9, s);
86 
87     s = fwrite("fwrite 2\n", 0, 9, stdout);
88     ret += check_s ("fwrite 2", s == 0, 0, s);
89 
90     s = fwrite("fwrite 3\n", 0, 0, stdout);
91     ret += check_s ("fwrite 3", s == 0, 0, s);
92 
93     return ret;
94 }
95