1 /*
2 * This file is part of execveat strace test.
3 *
4 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31 #include <asm/unistd.h>
32 #include "scno.h"
33
34 #ifdef __NR_execveat
35
36 # include <stdio.h>
37 # include <unistd.h>
38
39 # define FILENAME "test.execveat\nfilename"
40 # define Q_FILENAME "test.execveat\\nfilename"
41
42 static const char * const argv[] = {
43 FILENAME, "first", "second", (const char *) -1L,
44 (const char *) -2L, (const char *) -3L
45 };
46 static const char * const q_argv[] = {
47 Q_FILENAME, "first", "second"
48 };
49
50 static const char * const envp[] = {
51 "foobar=1", "foo\nbar=2", (const char *) -1L,
52 (const char *) -2L, (const char *) -3L
53 };
54 static const char * const q_envp[] = {
55 "foobar=1", "foo\\nbar=2"
56 };
57
58 int
main(void)59 main(void)
60 {
61 const char ** const tail_argv = tail_memdup(argv, sizeof(argv));
62 const char ** const tail_envp = tail_memdup(envp, sizeof(envp));
63
64 syscall(__NR_execveat, -100, FILENAME, tail_argv, tail_envp, 0x1100);
65 printf("execveat(AT_FDCWD, \"%s\""
66 ", [\"%s\", \"%s\", \"%s\", %p, %p, %p, ???]"
67 #if VERBOSE
68 ", [\"%s\", \"%s\", %p, %p, %p, ???]"
69 #else
70 ", [/* 5 vars, unterminated */]"
71 #endif
72 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
73 Q_FILENAME, q_argv[0], q_argv[1], q_argv[2],
74 argv[3], argv[4], argv[5],
75 #if VERBOSE
76 q_envp[0], q_envp[1], envp[2], envp[3], envp[4],
77 #endif
78 errno2name());
79
80 tail_argv[ARRAY_SIZE(q_argv)] = NULL;
81 tail_envp[ARRAY_SIZE(q_envp)] = NULL;
82
83 syscall(__NR_execveat, -100, FILENAME, tail_argv, tail_envp, 0x1100);
84 printf("execveat(AT_FDCWD, \"%s\", [\"%s\", \"%s\", \"%s\"]"
85 #if VERBOSE
86 ", [\"%s\", \"%s\"]"
87 #else
88 ", [/* 2 vars */]"
89 #endif
90 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
91 Q_FILENAME, q_argv[0], q_argv[1], q_argv[2],
92 #if VERBOSE
93 q_envp[0], q_envp[1],
94 #endif
95 errno2name());
96
97 syscall(__NR_execveat, -100, FILENAME, tail_argv + 2, tail_envp + 1, 0x1100);
98 printf("execveat(AT_FDCWD, \"%s\", [\"%s\"]"
99 #if VERBOSE
100 ", [\"%s\"]"
101 #else
102 ", [/* 1 var */]"
103 #endif
104 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
105 Q_FILENAME, q_argv[2],
106 #if VERBOSE
107 q_envp[1],
108 #endif
109 errno2name());
110
111 char **const empty = tail_alloc(sizeof(*empty));
112 char **const efault = empty + 1;
113 *empty = NULL;
114
115 syscall(__NR_execveat, -100, FILENAME, empty, empty, 0x1100);
116 printf("execveat(AT_FDCWD, \"%s\", []"
117 #if VERBOSE
118 ", []"
119 #else
120 ", [/* 0 vars */]"
121 #endif
122 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
123 Q_FILENAME, errno2name());
124
125 char str_a[] = "012345678901234567890123456789012";
126 char str_b[] = "_abcdefghijklmnopqrstuvwxyz()[]{}";
127 #define DEFAULT_STRLEN ((unsigned int) sizeof(str_a) - 2)
128 char **const a = tail_alloc(sizeof(*a) * (DEFAULT_STRLEN + 2));
129 char **const b = tail_alloc(sizeof(*b) * (DEFAULT_STRLEN + 2));
130 unsigned int i;
131 for (i = 0; i <= DEFAULT_STRLEN; ++i) {
132 a[i] = &str_a[i];
133 b[i] = &str_b[i];
134 }
135 a[i] = b[i] = NULL;
136
137 syscall(__NR_execveat, -100, FILENAME, a, b, 0x1100);
138 printf("execveat(AT_FDCWD, \"%s\", [\"%.*s\"...", Q_FILENAME, DEFAULT_STRLEN, a[0]);
139 for (i = 1; i < DEFAULT_STRLEN; ++i)
140 printf(", \"%s\"", a[i]);
141 #if VERBOSE
142 printf(", \"%s\"", a[i]);
143 #else
144 printf(", ...");
145 #endif
146 #if VERBOSE
147 printf("], [\"%.*s\"...", DEFAULT_STRLEN, b[0]);
148 for (i = 1; i <= DEFAULT_STRLEN; ++i)
149 printf(", \"%s\"", b[i]);
150 #else
151 printf("], [/* %u vars */", DEFAULT_STRLEN + 1);
152 #endif
153 printf("], AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
154 errno2name());
155
156 syscall(__NR_execveat, -100, FILENAME, a + 1, b + 1, 0x1100);
157 printf("execveat(AT_FDCWD, \"%s\", [\"%s\"", Q_FILENAME, a[1]);
158 for (i = 2; i <= DEFAULT_STRLEN; ++i)
159 printf(", \"%s\"", a[i]);
160 #if VERBOSE
161 printf("], [\"%s\"", b[1]);
162 for (i = 2; i <= DEFAULT_STRLEN; ++i)
163 printf(", \"%s\"", b[i]);
164 #else
165 printf("], [/* %d vars */", DEFAULT_STRLEN);
166 #endif
167 printf("], AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
168 errno2name());
169
170 syscall(__NR_execveat, -100, FILENAME, NULL, efault, 0x1100);
171 printf("execveat(AT_FDCWD, \"%s\", NULL, %p"
172 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
173 Q_FILENAME, efault, errno2name());
174
175 syscall(__NR_execveat, -100, FILENAME, efault, NULL, 0x1100);
176 printf("execveat(AT_FDCWD, \"%s\", %p, NULL"
177 ", AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) = -1 %s (%m)\n",
178 Q_FILENAME, efault, errno2name());
179
180 puts("+++ exited with 0 +++");
181 return 0;
182 }
183
184 #else
185
186 SKIP_MAIN_UNDEFINED("__NR_execveat")
187
188 #endif
189