1 /*-
2 * Copyright (c) 2021 Dag-Erling Smørgrav
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote
14 * products derived from this software without specific prior written
15 * permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifdef HAVE_CONFIG_H
31 # include "config.h"
32 #endif
33
34 #include <sys/types.h>
35
36 #include <errno.h>
37 #include <stdint.h>
38 #include <stdlib.h>
39
40 #include <cryb/test.h>
41
42 #include <security/pam_appl.h>
43 #include "openpam_impl.h"
44
45 static int
t_straddch_empty(char ** desc CRYB_UNUSED,void * arg CRYB_UNUSED)46 t_straddch_empty(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
47 {
48 char *str;
49 size_t size, len;
50 int ret;
51
52 str = NULL;
53 size = len = SIZE_MAX;
54 ret = t_is_zero_i(openpam_straddch(&str, &size, &len, '\0'));
55 ret &= t_is_not_null(str);
56 ret &= t_is_not_zero_sz(size);
57 ret &= t_is_zero_sz(len);
58 free(str);
59 return ret;
60 }
61
62 static int
t_straddch_alloc_fail(char ** desc CRYB_UNUSED,void * arg CRYB_UNUSED)63 t_straddch_alloc_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
64 {
65 char *str;
66 size_t size, len;
67 int ret;
68
69 str = NULL;
70 size = len = SIZE_MAX;
71 errno = 0;
72 t_malloc_fail = 1;
73 ret = t_compare_i(-1, openpam_straddch(&str, &size, &len, '\0'));
74 t_malloc_fail = 0;
75 ret &= t_compare_i(ENOMEM, errno);
76 ret &= t_is_null(str);
77 ret &= t_compare_sz(SIZE_MAX, size);
78 ret &= t_compare_sz(SIZE_MAX, len);
79 free(str);
80 return ret;
81 }
82
83 static int
t_straddch_realloc_fail(char ** desc CRYB_UNUSED,void * arg CRYB_UNUSED)84 t_straddch_realloc_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
85 {
86 char *str, *_str;
87 size_t size, _size, len, _len;
88 int i, ret;
89
90 // start with an empty string
91 str = NULL;
92 size = len = SIZE_MAX;
93 ret = t_is_zero_i(openpam_straddch(&str, &size, &len, '\0'));
94 ret &= t_is_not_null(str);
95 ret &= t_is_not_zero_sz(size);
96 ret &= t_is_zero_sz(len);
97 if (!ret)
98 goto end;
99 // repeatedly append to it until allocation fails
100 errno = 0;
101 _str = str;
102 _size = size;
103 _len = len;
104 t_malloc_fail = 1;
105 for (i = 0; i < 4096; i++) {
106 if ((ret = openpam_straddch(&str, &size, &len, 'x')) != 0)
107 break;
108 _size = size;
109 _len = len;
110 }
111 t_malloc_fail = 0;
112 ret = t_compare_i(-1, ret);
113 ret &= t_compare_i(ENOMEM, errno);
114 ret &= t_compare_ptr(_str, str);
115 ret &= t_compare_sz(_size, size);
116 ret &= t_compare_sz(_len, len);
117 end:
118 free(str);
119 return ret;
120 }
121
122 static int
t_straddch_realloc_ok(char ** desc CRYB_UNUSED,void * arg CRYB_UNUSED)123 t_straddch_realloc_ok(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
124 {
125 char *str;
126 size_t size, _size, len, _len;
127 int i, ret;
128
129 // start with an empty string
130 str = NULL;
131 size = len = SIZE_MAX;
132 ret = t_is_zero_i(openpam_straddch(&str, &size, &len, '\0'));
133 ret &= t_is_not_null(str);
134 ret &= t_is_not_zero_sz(size);
135 ret &= t_is_zero_sz(len);
136 if (!ret)
137 goto end;
138 // repeatedly append to it until size changes
139 _size = size;
140 _len = len;
141 for (i = ' '; i <= '~'; i++) { // assume ascii
142 if ((ret = openpam_straddch(&str, &size, &len, i)) != 0)
143 break;
144 if (size != _size)
145 break;
146 if (len != _len + 1)
147 break;
148 _len = len;
149 }
150 ret = t_is_zero_i(ret);
151 if (!ret)
152 goto end;
153 ret &= t_compare_sz(_len + 1, len);
154 ret &= t_compare_sz(_size * 2, size);
155 ret &= t_compare_i(i, str[_len]);
156 ret &= t_is_zero_i(str[len]);
157 end:
158 free(str);
159 return ret;
160 }
161
162
163 /***************************************************************************
164 * Boilerplate
165 */
166
167 static int
t_prepare(int argc CRYB_UNUSED,char * argv[]CRYB_UNUSED)168 t_prepare(int argc CRYB_UNUSED, char *argv[] CRYB_UNUSED)
169 {
170
171 t_add_test(t_straddch_empty, NULL, "empty string");
172 t_add_test(t_straddch_alloc_fail, NULL, "allocation failure");
173 t_add_test(t_straddch_realloc_fail, NULL, "reallocation failure");
174 t_add_test(t_straddch_realloc_ok, NULL, "reallocation success");
175 return (0);
176 }
177
178 int
main(int argc,char * argv[])179 main(int argc, char *argv[])
180 {
181
182 t_main(t_prepare, NULL, argc, argv);
183 }
184