/* * Check decoding of getpriority and setpriority syscalls. * * Copyright (c) 2016-2021 The strace developers. * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "tests.h" #include "scno.h" #include "pidns.h" #include #include #include int main(void) { PIDNS_TEST_INIT; const int pid = getpid(); const int pgid = getpgid(0); long rc = syscall(__NR_getpriority, PRIO_PROCESS, F8ILL_KULONG_MASK | pid); pidns_print_leader(); printf("getpriority(PRIO_PROCESS, %d%s) = %ld\n", pid, pidns_pid2str(PT_TGID), rc); rc = syscall(__NR_setpriority, PRIO_PROCESS, F8ILL_KULONG_MASK | pid, F8ILL_KULONG_MASK); pidns_print_leader(); printf("setpriority(PRIO_PROCESS, %d%s, 0) = %s\n", pid, pidns_pid2str(PT_TGID), sprintrc(rc)); rc = syscall(__NR_getpriority, PRIO_PGRP, F8ILL_KULONG_MASK | pgid); pidns_print_leader(); printf("getpriority(PRIO_PGRP, %d%s) = %ld\n", pgid, pidns_pid2str(PT_PGID), rc); pidns_print_leader(); puts("+++ exited with 0 +++"); return 0; }