mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 17:11:06 +00:00
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/* Copyright (C) 2017-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <support/check.h>
|
|
|
|
/* Try executing "/bin/sh -c true", using FD opened on /bin/sh. */
|
|
static int
|
|
try_fexecve (int fd)
|
|
{
|
|
pid_t pid = fork ();
|
|
|
|
if (pid == 0)
|
|
{
|
|
static const char *const argv[] = {
|
|
"/bin/sh", "-c", "true", NULL
|
|
};
|
|
fexecve (fd, (char *const *) argv, environ);
|
|
_exit (errno);
|
|
}
|
|
if (pid < 0)
|
|
FAIL_RET ("fork failed: %m");
|
|
|
|
pid_t termpid;
|
|
int status;
|
|
termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
|
|
if (termpid == -1)
|
|
FAIL_RET ("waitpid failed: %m");
|
|
if (termpid != pid)
|
|
FAIL_RET ("waitpid returned %ld != %ld",
|
|
(long int) termpid, (long int) pid);
|
|
if (!WIFEXITED (status))
|
|
FAIL_RET ("child hasn't exited normally");
|
|
|
|
/* If fexecve is unimplemented mark this test as UNSUPPORTED. */
|
|
if (WEXITSTATUS (status) == ENOSYS)
|
|
FAIL_UNSUPPORTED ("fexecve is unimplemented");
|
|
|
|
if (WEXITSTATUS (status) != 0)
|
|
{
|
|
errno = WEXITSTATUS (status);
|
|
FAIL_RET ("fexecve failed: %m");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int fd;
|
|
int ret;
|
|
|
|
fd = open ("/bin/sh", O_RDONLY);
|
|
if (fd < 0)
|
|
FAIL_UNSUPPORTED ("/bin/sh cannot be opened: %m");
|
|
ret = try_fexecve (fd);
|
|
close (fd);
|
|
|
|
#ifdef O_PATH
|
|
fd = open ("/bin/sh", O_RDONLY | O_PATH);
|
|
if (fd < 0)
|
|
FAIL_UNSUPPORTED ("/bin/sh cannot be opened (O_PATH): %m");
|
|
ret |= try_fexecve (fd);
|
|
close (fd);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|