1 /*-
2 * Copyright (c) 2017 Cyril S. E. Schubert
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 <assert.h>
27 #include <stdint.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <sys/types.h>
31 #include <unistd.h>
32 #include <sys/wait.h>
33
34 #include <atf-c.h>
35
36 static errno_t error_code;
37 static const char * message;
38
39 void
h(const char * msg,void * ptr __unused,errno_t error)40 h(const char * msg, void * ptr __unused, errno_t error)
41 {
42 error_code = error;
43 message = msg;
44 }
45
46 /* null ptr */
47 ATF_TC_WITHOUT_HEAD(null_ptr);
ATF_TC_BODY(null_ptr,tc)48 ATF_TC_BODY(null_ptr, tc)
49 {
50 ATF_CHECK_MSG(gets_s(NULL, 1) == NULL,
51 "gets_s() failed to handle NULL pointer");
52 }
53
54 /* normal */
55 ATF_TC_WITHOUT_HEAD(normal);
ATF_TC_BODY(normal,tc)56 ATF_TC_BODY(normal, tc)
57 {
58 pid_t kidpid;
59 int fd[2];
60 int nfd;
61
62 // close(STDIN_FILENO);
63 // close(STDOUT_FILENO);
64 pipe(fd);
65
66 if ((kidpid = fork()) == 0) {
67 char b[10];
68
69 close(fd[1]);
70 nfd = dup2(fd[0], 0);
71 close(fd[0]);
72 stdin = fdopen(nfd, "r");
73 ATF_CHECK_MSG(gets_s(b, sizeof(b)) == 0, "gets_s() normal failed");
74 fclose(stdin);
75 } else {
76 int stat;
77
78 close(fd[0]);
79 stdout = fdopen(fd[1], "w");
80 puts("a sting");
81 fclose(stdout);
82 (void) waitpid(kidpid, &stat, WEXITED);
83 }
84 }
85
86 /* n > rmax */
87 ATF_TC_WITHOUT_HEAD(n_gt_rmax);
ATF_TC_BODY(n_gt_rmax,tc)88 ATF_TC_BODY(n_gt_rmax, tc)
89 {
90 char b;
91
92 ATF_CHECK_MSG(gets_s(&b, RSIZE_MAX + 1) == NULL,
93 "gets_s() n > RSIZE_MAX");
94 }
95
96 /* n == 0 */
97 ATF_TC_WITHOUT_HEAD(n_eq_zero);
ATF_TC_BODY(n_eq_zero,tc)98 ATF_TC_BODY(n_eq_zero, tc)
99 {
100 char b;
101
102 ATF_CHECK_MSG(gets_s(&b, 0) == NULL, "gets_s() n is zero");
103 }
104
105 /* n > rmax, handler */
106 ATF_TC_WITHOUT_HEAD(n_gt_rmax_handler);
ATF_TC_BODY(n_gt_rmax_handler,tc)107 ATF_TC_BODY(n_gt_rmax_handler, tc)
108 {
109 char b;
110
111 error_code = 0;
112 message = NULL;
113 set_constraint_handler_s(h);
114 ATF_CHECK_MSG(gets_s(&b, RSIZE_MAX + 1) == NULL, "gets_s() n > RSIZE_MAX");
115 ATF_CHECK_MSG(error_code > 0, "gets_s() error code is %d", error_code);
116 ATF_CHECK_MSG(strcmp(message, "gets_s : n > RSIZE_MAX") == 0, "gets_s(): incorrect error message");
117 }
118
119 /* n == 0, handler */
120 ATF_TC_WITHOUT_HEAD(n_eq_zero_handler);
ATF_TC_BODY(n_eq_zero_handler,tc)121 ATF_TC_BODY(n_eq_zero_handler, tc)
122 {
123 char b;
124
125 error_code = 0;
126 message = NULL;
127 set_constraint_handler_s(h);
128 ATF_CHECK(gets_s(&b, 0) == NULL);
129 ATF_CHECK_MSG(error_code > 0, "gets_s() error code is %d", error_code);
130 ATF_CHECK_MSG(strcmp(message, "gets_s : n == 0") == 0, "gets_s(): incorrect error message");
131 }
132
ATF_TP_ADD_TCS(tp)133 ATF_TP_ADD_TCS(tp)
134 {
135 ATF_TP_ADD_TC(tp, null_ptr);
136 ATF_TP_ADD_TC(tp, normal);
137 ATF_TP_ADD_TC(tp, n_gt_rmax);
138 ATF_TP_ADD_TC(tp, n_eq_zero);
139 ATF_TP_ADD_TC(tp, n_gt_rmax_handler);
140 ATF_TP_ADD_TC(tp, n_eq_zero_handler);
141 return (atf_no_error());
142 }
143