Dmitry V. Levin
3b97ee486b
* signal.c (SYS_FUNC(sgetmask)): Replace sprintsigmask_val with sprint_old_sigmask_val. * tests/sxetmask.c (main): Check decoding of signal mask containing RT signals.
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/*
|
|
* Check decoding of sgetmask and ssetmask syscalls.
|
|
*
|
|
* Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "tests.h"
|
|
#include <asm/unistd.h>
|
|
|
|
#if defined __NR_sgetmask && defined __NR_ssetmask
|
|
|
|
# include <errno.h>
|
|
# include <signal.h>
|
|
# include <stdio.h>
|
|
# include <stdint.h>
|
|
# include <string.h>
|
|
# include <unistd.h>
|
|
|
|
static long
|
|
k_sgetmask(void)
|
|
{
|
|
return syscall(__NR_sgetmask);
|
|
}
|
|
|
|
static long
|
|
k_ssetmask(const kernel_ulong_t arg)
|
|
{
|
|
return syscall(__NR_ssetmask, arg);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
union {
|
|
sigset_t libc_mask;
|
|
unsigned long old_mask;
|
|
} uset, uget;
|
|
long rc;
|
|
|
|
/*
|
|
* Block, reset, and raise SIGUSR1.
|
|
* If a subsequent ssetmask call fails to set the proper mask,
|
|
* the process will be terminated by SIGUSR1.
|
|
*/
|
|
sigemptyset(&uset.libc_mask);
|
|
sigaddset(&uset.libc_mask, SIGUSR1);
|
|
if (sigprocmask(SIG_SETMASK, &uset.libc_mask, NULL))
|
|
perror_msg_and_fail("sigprocmask");
|
|
if (signal(SIGUSR1, SIG_DFL) == SIG_ERR)
|
|
perror_msg_and_fail("signal");
|
|
raise(SIGUSR1);
|
|
|
|
sigaddset(&uset.libc_mask, SIGUSR2);
|
|
rc = k_ssetmask((kernel_ulong_t) 0xfacefeed00000000ULL | uset.old_mask);
|
|
if (rc == -1L) {
|
|
printf("ssetmask([USR1 USR2]) = %s\n", sprintrc(rc));
|
|
} else {
|
|
printf("ssetmask([USR1 USR2]) = %#lx (old mask [USR1])\n", rc);
|
|
/*
|
|
* Use a regular sigprocmask call to check the value
|
|
* returned by the ssetmask call being tested.
|
|
*/
|
|
if (sigprocmask(SIG_SETMASK, NULL, &uget.libc_mask))
|
|
perror_msg_and_fail("sigprocmask");
|
|
if (uset.old_mask != uget.old_mask)
|
|
error_msg_and_fail("sigprocmask returned %#lx"
|
|
" instead of %#lx",
|
|
uget.old_mask, uset.old_mask);
|
|
}
|
|
|
|
rc = k_sgetmask();
|
|
if (rc == -1L) {
|
|
printf("sgetmask() = %s\n", sprintrc(rc));
|
|
} else {
|
|
printf("sgetmask() = %#lx (mask [USR1 USR2])\n", rc);
|
|
if (uget.old_mask != (unsigned long) rc)
|
|
error_msg_and_fail("sigprocmask returned %#lx",
|
|
uget.old_mask);
|
|
|
|
if (sizeof(long) > 4) {
|
|
sigaddset(&uset.libc_mask, 32 + 27);
|
|
if (sigprocmask(SIG_SETMASK, &uset.libc_mask, NULL))
|
|
perror_msg_and_fail("sigprocmask");
|
|
rc = k_sgetmask();
|
|
printf("sgetmask() = %#lx"
|
|
" (mask [USR1 USR2 RT_27])\n", rc);
|
|
if (uset.old_mask != (unsigned long) rc)
|
|
error_msg_and_fail("sigprocmask set %#lx",
|
|
uset.old_mask);
|
|
}
|
|
}
|
|
|
|
puts("+++ exited with 0 +++");
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
SKIP_MAIN_UNDEFINED("__NR_sgetmask && __NR_ssetmask")
|
|
|
|
#endif
|