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/*
* Check decoding of fchmod syscall.
*
* Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
* Copyright (c) 2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2016-2022 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#ifdef __NR_fchmod
# include <fcntl.h>
# include <stdio.h>
# include <unistd.h>
# include "secontext.h"
int
main(void)
{
/*
* Make sure the current workdir of the tracee
* is different from the current workdir of the tracer.
*/
create_and_enter_subdir("fchmod_subdir");
char *my_secontext = SECONTEXT_PID_MY();
static const char sample[] = "fchmod_sample_file";
(void) unlink(sample);
int fd = open(sample, O_CREAT|O_RDONLY, 0400);
if (fd == -1)
perror_msg_and_fail("open(\"%s\")", sample);
static const char sample_del[] = "fchmod_sample_file (deleted)";
(void) unlink(sample_del);
int fd_del = open(sample_del, O_CREAT|O_RDONLY, 0400);
if (fd_del == -1)
perror_msg_and_fail("open(\"%s\")", sample);
# ifdef YFLAG
char *sample_realpath = get_fd_path(fd);
char *sample_del_realpath = get_fd_path(fd_del);
# endif
const char *sample_secontext = SECONTEXT_FILE(sample);
long rc = syscall(__NR_fchmod, fd, 0600);
# ifdef YFLAG
printf("%s%s(%d<%s>%s, 0600) = %s\n",
# else
printf("%s%s(%d%s, 0600) = %s\n",
# endif
my_secontext, "fchmod",
fd,
# ifdef YFLAG
sample_realpath,
# endif
sample_secontext,
sprintrc(rc));
const char *sample_del_secontext = SECONTEXT_FILE(sample_del);
rc = syscall(__NR_fchmod, fd_del, 0600);
# ifdef YFLAG
printf("%s%s(%d<%s>%s, 0600) = %s\n",
# else
printf("%s%s(%d%s, 0600) = %s\n",
# endif
my_secontext, "fchmod",
fd_del,
# ifdef YFLAG
sample_del_realpath,
# endif
sample_del_secontext,
sprintrc(rc));
if (unlink(sample))
perror_msg_and_fail("unlink(\"%s\")", sample);
rc = syscall(__NR_fchmod, fd, 051);
# ifdef YFLAG
printf("%s%s(%d<%s>(deleted)%s, 051) = %s\n",
# else
printf("%s%s(%d%s, 051) = %s\n",
# endif
my_secontext, "fchmod",
fd,
# ifdef YFLAG
sample_realpath,
# endif
sample_secontext,
sprintrc(rc));
if (unlink(sample_del))
perror_msg_and_fail("unlink(\"%s\")", sample_del);
rc = syscall(__NR_fchmod, fd_del, 051);
# ifdef YFLAG
printf("%s%s(%d<%s>(deleted)%s, 051) = %s\n",
# else
printf("%s%s(%d%s, 051) = %s\n",
# endif
my_secontext, "fchmod",
fd_del,
# ifdef YFLAG
sample_del_realpath,
# endif
sample_del_secontext,
sprintrc(rc));
rc = syscall(__NR_fchmod, fd, 004);
# ifdef YFLAG
printf("%s%s(%d<%s>(deleted)%s, 004) = %s\n",
# else
printf("%s%s(%d%s, 004) = %s\n",
# endif
my_secontext, "fchmod",
fd,
# ifdef YFLAG
sample_realpath,
# endif
sample_secontext,
sprintrc(rc));
leave_and_remove_subdir();
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_fchmod")
#endif
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