1 /*
2 * This file is part of execveat strace test.
3 *
4 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2015-2018 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32 #include <asm/unistd.h>
33 #include "scno.h"
34
35 #ifdef __NR_execveat
36
37 # include <stdio.h>
38 # include <unistd.h>
39
40 # define FILENAME "test.execveat\nfilename"
41 # define Q_FILENAME "test.execveat\\nfilename"
42
43 static const char * const argv[] = {
44 FILENAME, "first", "second", (const char *) -1L,
45 (const char *) -2L, (const char *) -3L
46 };
47 static const char * const q_argv[] = {
48 Q_FILENAME, "first", "second"
49 };
50
51 static const char * const envp[] = {
52 "foobar=1", "foo\nbar=2", (const char *) -1L,
53 (const char *) -2L, (const char *) -3L
54 };
55 static const char * const q_envp[] = {
56 "foobar=1", "foo\\nbar=2"
57 };
58
59 int
main(void)60 main(void)
61 {
62 const char ** const tail_argv = tail_memdup(argv, sizeof(argv));
63 const char ** const tail_envp = tail_memdup(envp, sizeof(envp));
64
65 syscall(__NR_execveat, -100, FILENAME, tail_argv, tail_envp, 0x1100);
66 printf("execveat(AT_FDCWD, \"%s\""
67 ", [\"%s\", \"%s\", \"%s\", %p, %p, %p, ... /* %p */]"
68 #if VERBOSE
69 ", [\"%s\", \"%s\", %p, %p, %p, ... /* %p */]"
70 #else
71 ", %p /* 5 vars, unterminated */"
72 #endif
73 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
74 Q_FILENAME, q_argv[0], q_argv[1], q_argv[2],
75 argv[3], argv[4], argv[5], (char *) tail_argv + sizeof(argv),
76 #if VERBOSE
77 q_envp[0], q_envp[1], envp[2], envp[3], envp[4],
78 (char *) tail_envp + sizeof(envp),
79 #else
80 tail_envp,
81 #endif
82 errno2name());
83
84 tail_argv[ARRAY_SIZE(q_argv)] = NULL;
85 tail_envp[ARRAY_SIZE(q_envp)] = NULL;
86 (void) q_envp; /* workaround for clang bug #33068 */
87
88 syscall(__NR_execveat, -100, FILENAME, tail_argv, tail_envp, 0x1100);
89 printf("execveat(AT_FDCWD, \"%s\", [\"%s\", \"%s\", \"%s\"]"
90 #if VERBOSE
91 ", [\"%s\", \"%s\"]"
92 #else
93 ", %p /* 2 vars */"
94 #endif
95 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
96 Q_FILENAME, q_argv[0], q_argv[1], q_argv[2],
97 #if VERBOSE
98 q_envp[0], q_envp[1],
99 #else
100 tail_envp,
101 #endif
102 errno2name());
103
104 syscall(__NR_execveat, -100, FILENAME, tail_argv + 2, tail_envp + 1, 0x1100);
105 printf("execveat(AT_FDCWD, \"%s\", [\"%s\"]"
106 #if VERBOSE
107 ", [\"%s\"]"
108 #else
109 ", %p /* 1 var */"
110 #endif
111 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
112 Q_FILENAME, q_argv[2],
113 #if VERBOSE
114 q_envp[1],
115 #else
116 tail_envp + 1,
117 #endif
118 errno2name());
119
120 TAIL_ALLOC_OBJECT_CONST_PTR(char *, empty);
121 char **const efault = empty + 1;
122 *empty = NULL;
123
124 syscall(__NR_execveat, -100, FILENAME, empty, empty, 0x1100);
125 printf("execveat(AT_FDCWD, \"%s\", []"
126 #if VERBOSE
127 ", []"
128 #else
129 ", %p /* 0 vars */"
130 #endif
131 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
132 Q_FILENAME,
133 #if !VERBOSE
134 empty,
135 #endif
136 errno2name());
137
138 char *const str_a = tail_alloc(DEFAULT_STRLEN + 2);
139 fill_memory_ex(str_a, DEFAULT_STRLEN + 1, '0', 10);
140 str_a[DEFAULT_STRLEN + 1] = '\0';
141
142 char *const str_b = tail_alloc(DEFAULT_STRLEN + 2);
143 fill_memory_ex(str_b, DEFAULT_STRLEN + 1, '_', 32);
144 str_b[DEFAULT_STRLEN + 1] = '\0';
145
146 char **const a = tail_alloc(sizeof(*a) * (DEFAULT_STRLEN + 2));
147 char **const b = tail_alloc(sizeof(*b) * (DEFAULT_STRLEN + 2));
148 unsigned int i;
149 for (i = 0; i <= DEFAULT_STRLEN; ++i) {
150 a[i] = &str_a[i];
151 b[i] = &str_b[i];
152 }
153 a[i] = b[i] = NULL;
154
155 syscall(__NR_execveat, -100, FILENAME, a, b, 0x1100);
156 printf("execveat(AT_FDCWD, \"%s\", [\"%.*s\"...", Q_FILENAME, DEFAULT_STRLEN, a[0]);
157 for (i = 1; i < DEFAULT_STRLEN; ++i)
158 printf(", \"%s\"", a[i]);
159 #if VERBOSE
160 printf(", \"%s\"", a[i]);
161 #else
162 printf(", ...");
163 #endif
164 #if VERBOSE
165 printf("], [\"%.*s\"...", DEFAULT_STRLEN, b[0]);
166 for (i = 1; i <= DEFAULT_STRLEN; ++i)
167 printf(", \"%s\"", b[i]);
168 printf("]");
169 #else
170 printf("], %p /* %u vars */", b, DEFAULT_STRLEN + 1);
171 #endif
172 printf(", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
173 errno2name());
174
175 syscall(__NR_execveat, -100, FILENAME, a + 1, b + 1, 0x1100);
176 printf("execveat(AT_FDCWD, \"%s\", [\"%s\"", Q_FILENAME, a[1]);
177 for (i = 2; i <= DEFAULT_STRLEN; ++i)
178 printf(", \"%s\"", a[i]);
179 #if VERBOSE
180 printf("], [\"%s\"", b[1]);
181 for (i = 2; i <= DEFAULT_STRLEN; ++i)
182 printf(", \"%s\"", b[i]);
183 printf("]");
184 #else
185 printf("], %p /* %d vars */", b + 1, DEFAULT_STRLEN);
186 #endif
187 printf(", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
188 errno2name());
189
190 syscall(__NR_execveat, -100, FILENAME, NULL, efault, 0x1100);
191 printf("execveat(AT_FDCWD, \"%s\", NULL, %p"
192 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
193 Q_FILENAME, efault, errno2name());
194
195 syscall(__NR_execveat, -100, FILENAME, efault, NULL, 0x1100);
196 printf("execveat(AT_FDCWD, \"%s\", %p, NULL"
197 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
198 Q_FILENAME, efault, errno2name());
199
200 puts("+++ exited with 0 +++");
201 return 0;
202 }
203
204 #else
205
206 SKIP_MAIN_UNDEFINED("__NR_execveat")
207
208 #endif
209