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/*
* This file is part of execve strace test.
*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include "secontext.h"
static const char *errstr;
static int
call_execve(const char *pathname, char *const *argv, char *const *envp)
{
int rc = execve(pathname, argv, envp);
errstr = sprintrc(rc);
return rc;
}
#define FILENAME "test.execve\nfilename"
#define Q_FILENAME "test.execve\\nfilename"
static const char * const argv[] = {
FILENAME, "first", "second", (const char *) -1L,
(const char *) -2L, (const char *) -3L
};
static const char * const q_argv[] = {
Q_FILENAME, "first", "second"
};
static const char * const envp[] = {
"foobar=1", "foo\nbar=2", (const char *) -1L,
(const char *) -2L, (const char *) -3L
};
static const char * const q_envp[] = {
"foobar=1", "foo\\nbar=2"
};
int
main(void)
{
/*
* Make sure the current workdir of the tracee
* is different from the current workdir of the tracer.
*/
create_and_enter_subdir("execve_subdir");
char ** const tail_argv = tail_memdup(argv, sizeof(argv));
char ** const tail_envp = tail_memdup(envp, sizeof(envp));
char *my_secontext = SECONTEXT_PID_MY();
(void) unlink(FILENAME);
if (open(FILENAME, O_RDONLY | O_CREAT, 0400) < 0)
perror_msg_and_fail("open");
char *FILENAME_secontext = SECONTEXT_FILE(FILENAME);
call_execve(FILENAME, tail_argv, tail_envp);
printf("%s%s(\"%s\"%s"
", [\"%s\", \"%s\", \"%s\", %p, %p, %p, ... /* %p */]"
#if VERBOSE
", [\"%s\", \"%s\", %p, %p, %p, ... /* %p */]"
#else
", %p /* 5 vars, unterminated */"
#endif
") = %s\n",
my_secontext, "execve",
Q_FILENAME, FILENAME_secontext,
q_argv[0], q_argv[1], q_argv[2],
argv[3], argv[4], argv[5], (char *) tail_argv + sizeof(argv)
#if VERBOSE
, q_envp[0], q_envp[1], envp[2], envp[3], envp[4],
(char *) tail_envp + sizeof(envp)
#else
, tail_envp
#endif
, errstr);
tail_argv[ARRAY_SIZE(q_argv)] = NULL;
tail_envp[ARRAY_SIZE(q_envp)] = NULL;
(void) q_envp; /* workaround for clang bug #33068 */
call_execve(FILENAME, tail_argv, tail_envp);
printf("%s%s(\"%s\"%s, [\"%s\", \"%s\", \"%s\"]"
#if VERBOSE
", [\"%s\", \"%s\"]"
#else
", %p /* 2 vars */"
#endif
") = %s\n",
my_secontext, "execve",
Q_FILENAME, FILENAME_secontext,
q_argv[0], q_argv[1], q_argv[2]
#if VERBOSE
, q_envp[0], q_envp[1]
#else
, tail_envp
#endif
, errstr);
call_execve(FILENAME, tail_argv + 2, tail_envp + 1);
printf("%s%s(\"%s\"%s, [\"%s\"]"
#if VERBOSE
", [\"%s\"]"
#else
", %p /* 1 var */"
#endif
") = %s\n",
my_secontext, "execve",
Q_FILENAME, FILENAME_secontext,
q_argv[2]
#if VERBOSE
, q_envp[1]
#else
, tail_envp + 1
#endif
, errstr);
TAIL_ALLOC_OBJECT_CONST_PTR(char *, empty);
char **const efault = empty + 1;
*empty = NULL;
call_execve(FILENAME, empty, empty);
printf("%s%s(\"%s\"%s, []"
#if VERBOSE
", []"
#else
", %p /* 0 vars */"
#endif
") = %s\n",
my_secontext, "execve",
Q_FILENAME, FILENAME_secontext
#if !VERBOSE
, empty
#endif
, errstr);
char *const str_a = tail_alloc(DEFAULT_STRLEN + 2);
fill_memory_ex(str_a, DEFAULT_STRLEN + 1, '0', 10);
str_a[DEFAULT_STRLEN + 1] = '\0';
char *const str_b = tail_alloc(DEFAULT_STRLEN + 2);
fill_memory_ex(str_b, DEFAULT_STRLEN + 1, '_', 32);
str_b[DEFAULT_STRLEN + 1] = '\0';
char **const a = tail_alloc(sizeof(*a) * (DEFAULT_STRLEN + 2));
char **const b = tail_alloc(sizeof(*b) * (DEFAULT_STRLEN + 2));
unsigned int i;
for (i = 0; i <= DEFAULT_STRLEN; ++i) {
a[i] = &str_a[i];
b[i] = &str_b[i];
}
a[i] = b[i] = NULL;
call_execve(FILENAME, a, b);
printf("%s%s(\"%s\"%s, [\"%.*s\"...",
my_secontext, "execve",
Q_FILENAME, FILENAME_secontext,
DEFAULT_STRLEN, a[0]);
for (i = 1; i < DEFAULT_STRLEN; ++i)
printf(", \"%s\"", a[i]);
#if VERBOSE
printf(", \"%s\"", a[i]);
#else
printf(", ...");
#endif
#if VERBOSE
printf("], [\"%.*s\"...", DEFAULT_STRLEN, b[0]);
for (i = 1; i <= DEFAULT_STRLEN; ++i)
printf(", \"%s\"", b[i]);
printf("]");
#else
printf("], %p /* %u vars */", b, DEFAULT_STRLEN + 1);
#endif
printf(") = %s\n", errstr);
call_execve(FILENAME, a + 1, b + 1);
printf("%s%s(\"%s\"%s, [\"%s\"",
my_secontext, "execve",
Q_FILENAME, FILENAME_secontext,
a[1]);
for (i = 2; i <= DEFAULT_STRLEN; ++i)
printf(", \"%s\"", a[i]);
#if VERBOSE
printf("], [\"%s\"", b[1]);
for (i = 2; i <= DEFAULT_STRLEN; ++i)
printf(", \"%s\"", b[i]);
printf("]");
#else
printf("], %p /* %d vars */", b + 1, DEFAULT_STRLEN);
#endif
printf(") = %s\n", errstr);
if (unlink(FILENAME))
perror_msg_and_fail("unlink");
call_execve(FILENAME, (char **) tail_argv[ARRAY_SIZE(q_argv)], efault);
printf("%s%s(\"%s\", NULL, %p) = %s\n",
my_secontext, "execve",
Q_FILENAME, efault, errstr);
call_execve(FILENAME, efault, NULL);
printf("%s%s(\"%s\", %p, NULL) = %s\n",
my_secontext, "execve",
Q_FILENAME, efault, errstr);
leave_and_remove_subdir();
return 0;
}
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