117 lines
2.0 KiB
C
117 lines
2.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
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* AUTHOR : Bob Clark
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* CO-PILOT : Barrie Kletscher
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* DATE STARTED : 9/26/86
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* Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
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* Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
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*/
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/*\
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* [Description]
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*
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* This test checks following conditions:
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* 1. sighold action to turn off the receipt of all signals was done without error.
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* 2. After signals were held, and sent, no signals were trapped.
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*/
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#define _XOPEN_SOURCE 600
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#include <signal.h>
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#include "tst_test.h"
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#ifndef NSIG
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# define NSIG _NSIG
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#endif
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#ifndef NUMSIGS
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# define NUMSIGS NSIG
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#endif
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static int sigs_catched;
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static int sigs_map[NUMSIGS];
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static int skip_sig(int sig)
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{
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if (sig >= 32 && sig < SIGRTMIN)
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return 1;
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switch (sig) {
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case SIGCHLD:
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case SIGKILL:
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case SIGALRM:
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case SIGSTOP:
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return 1;
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default:
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return 0;
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}
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}
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static void handle_sigs(int sig)
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{
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sigs_map[sig] = 1;
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sigs_catched++;
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}
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static void do_child(void)
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{
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int sig;
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for (sig = 1; sig < NUMSIGS; sig++) {
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if (skip_sig(sig))
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continue;
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SAFE_SIGNAL(sig, handle_sigs);
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}
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for (sig = 1; sig < NUMSIGS; sig++) {
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if (skip_sig(sig))
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continue;
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if (sighold(sig))
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tst_brk(TBROK | TERRNO, "sighold(%s %i)", tst_strsig(sig), sig);
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}
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TST_CHECKPOINT_WAKE_AND_WAIT(0);
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if (!sigs_catched) {
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tst_res(TPASS, "all signals were hold");
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return;
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}
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tst_res(TFAIL, "signal handler was executed");
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for (sig = 1; sig < NUMSIGS; sig++)
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if (sigs_map[sig])
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tst_res(TINFO, "Signal %i(%s) catched", sig, tst_strsig(sig));
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}
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static void run(void)
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{
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pid_t pid_child;
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int signal;
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pid_child = SAFE_FORK();
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if (!pid_child) {
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do_child();
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return;
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}
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TST_CHECKPOINT_WAIT(0);
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for (signal = 1; signal < NUMSIGS; signal++) {
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if (skip_sig(signal))
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continue;
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SAFE_KILL(pid_child, signal);
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}
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TST_CHECKPOINT_WAKE(0);
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}
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static struct tst_test test = {
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.test_all = run,
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.forks_child = 1,
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.needs_checkpoints = 1,
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};
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