gets_s_test.c revision 332736 
1/*-
2 * Copyright (c) 2017 Cyril S. E. Schubert.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: stable/11/lib/libc/tests/stdio/gets_s_test.c 332736 2018-04-18 19:18:14Z cy $");
28
29#include <assert.h>
30#include <stdint.h>
31#include <stdio.h>
32#include <stdlib.h>
33#include <sys/types.h>
34#include <unistd.h>
35#include <sys/wait.h>
36
37#include <atf-c.h>
38
39static errno_t error_code;
40static const char * message;
41
42void
43h(const char * msg, void * ptr __unused, errno_t error)
44{
45	error_code = error;
46	message = msg;
47}
48
49/* null ptr */
50ATF_TC_WITHOUT_HEAD(null_ptr);
51ATF_TC_BODY(null_ptr, tc)
52{
53	ATF_CHECK_MSG(gets_s(NULL, 1) == NULL,
54		"gets_s() failed to handle NULL pointer");
55}
56
57/* normal */
58ATF_TC_WITHOUT_HEAD(normal);
59ATF_TC_BODY(normal, tc)
60{
61	pid_t	kidpid;
62	int	fd[2];
63	int	nfd;
64
65	// close(STDIN_FILENO);
66	// close(STDOUT_FILENO);
67	pipe(fd);
68
69	if ((kidpid = fork()) == 0) {
70		char	b[10];
71
72		close(fd[1]);
73		nfd = dup2(fd[0], 0);
74		close(fd[0]);
75		stdin = fdopen(nfd, "r");
76		ATF_CHECK_MSG(gets_s(b, sizeof(b)) == 0, "gets_s() normal failed");
77		fclose(stdin);
78	} else {
79		int stat;
80
81		close(fd[0]);
82		stdout = fdopen(fd[1], "w");
83		puts("a sting");
84		fclose(stdout);
85		(void) waitpid(kidpid, &stat, WEXITED);
86	}
87}
88
89/* n > rmax */
90ATF_TC_WITHOUT_HEAD(n_gt_rmax);
91ATF_TC_BODY(n_gt_rmax, tc)
92{
93	char b;
94
95	ATF_CHECK_MSG(gets_s(&b, RSIZE_MAX + 1) == NULL,
96		"gets_s() n > RSIZE_MAX");
97}
98
99/* n == 0 */
100ATF_TC_WITHOUT_HEAD(n_eq_zero);
101ATF_TC_BODY(n_eq_zero, tc)
102{
103	char b;
104
105	ATF_CHECK_MSG(gets_s(&b, 0) == NULL, "gets_s() n is zero");
106}
107
108/* n > rmax, handler */
109ATF_TC_WITHOUT_HEAD(n_gt_rmax_handler);
110ATF_TC_BODY(n_gt_rmax_handler, tc)
111{
112	char b;
113
114	error_code = 0;
115	message = NULL;
116	set_constraint_handler_s(h);
117	ATF_CHECK_MSG(gets_s(&b, RSIZE_MAX + 1) == NULL, "gets_s() n > RSIZE_MAX");
118	ATF_CHECK_MSG(error_code > 0, "gets_s() error code is %d", error_code);
119	ATF_CHECK_MSG(strcmp(message, "gets_s : n > RSIZE_MAX") == 0, "gets_s(): incorrect error message");
120}
121
122/* n == 0, handler */
123ATF_TC_WITHOUT_HEAD(n_eq_zero_handler);
124ATF_TC_BODY(n_eq_zero_handler, tc)
125{
126	char b;
127
128	error_code = 0;
129	message = NULL;
130	set_constraint_handler_s(h);
131	ATF_CHECK(gets_s(&b, 0) == NULL);
132	ATF_CHECK_MSG(error_code > 0, "gets_s() error code is %d", error_code);
133	ATF_CHECK_MSG(strcmp(message, "gets_s : n == 0") == 0, "gets_s(): incorrect error message");
134}
135
136ATF_TP_ADD_TCS(tp)
137{
138	ATF_TP_ADD_TC(tp, null_ptr);
139	ATF_TP_ADD_TC(tp, normal);
140	ATF_TP_ADD_TC(tp, n_gt_rmax);
141	ATF_TP_ADD_TC(tp, n_eq_zero);
142	ATF_TP_ADD_TC(tp, n_gt_rmax_handler);
143	ATF_TP_ADD_TC(tp, n_eq_zero_handler);
144	return (atf_no_error());
145}
146