/* * Check decoding of kill syscall. * * Copyright (c) 2015-2016 Dmitry V. Levin * Copyright (c) 2016 Fei Jie * Copyright (c) 2016-2019 The strace developers. * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "tests.h" #include "scno.h" #ifdef __NR_kill # include # include # include static void handler(int sig) { } int main(void) { const struct sigaction act = { .sa_handler = handler }; if (sigaction(SIGALRM, &act, NULL)) perror_msg_and_fail("sigaction"); sigset_t mask; sigemptyset(&mask); sigaddset(&mask, SIGALRM); if (sigprocmask(SIG_UNBLOCK, &mask, NULL)) perror_msg_and_fail("sigprocmask"); const int pid = getpid(); long rc = syscall(__NR_kill, pid, (long) 0xdefaced00000000ULL | SIGALRM); printf("kill(%d, SIGALRM) = %ld\n", pid, rc); const long big_pid = (long) 0xfacefeedbadc0dedULL; const long big_sig = (long) 0xdeadbeefcafef00dULL; rc = syscall(__NR_kill, big_pid, big_sig); printf("kill(%d, %d) = %ld %s (%m)\n", (int) big_pid, (int) big_sig, rc, errno2name()); rc = syscall(__NR_kill, (long) 0xdefaced00000000ULL | pid, 0); printf("kill(%d, 0) = %ld\n", pid, rc); puts("+++ exited with 0 +++"); return 0; } #else SKIP_MAIN_UNDEFINED("__NR_kill") #endif