/* vi: set sw=4 ts=4: *//* * signal testing function for uClibc * * Copyright (C) 2000 by Lineo, inc.  Written by Erik Andersen * <andersen@lineo.com>, <andersee@debian.org> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Library General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program 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 Library General Public License * for more details. * * You should have received a copy of the GNU Library General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */#include <errno.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include <strings.h>#include <fcntl.h>#include <signal.h>/* -------------------------------------------------*//* This stuff is common to all the testing routines *//* -------------------------------------------------*/const char *it = "<UNSET>";		/* Routine name for message routines. */size_t errors = 0;void check(int thing, int number){	if (!thing) {		printf("%s: flunked test %d\n", it, number);		++errors;	}}void equal(const char *a, const char *b, int number){	check(a != NULL && b != NULL && (strcmp(a, b) == 0), number);}/* -------------------------------------------------*//* Let the tests begin....                          *//* -------------------------------------------------*/int global_int = 0;void set_global_int_to_one(int signum){	printf ("Received signal %d (%s).\n", signum, strsignal(signum));	global_int = 1;	return;}void signal_test_1(void){	global_int = 0;	it = "global variable set from signal handler";	signal(SIGUSR1, set_global_int_to_one);	raise(SIGUSR1);	/* This should already have jumped to the signal handler */	check((global_int == 1), 1);	global_int = 0;	signal(SIGUSR1, SIG_IGN);	raise(SIGUSR1);	/* This should not go to the signal handler this time since we  */	check((global_int == 0), 1);}int main(void){	int status;	signal_test_1();	if (errors == 0) {		status = EXIT_SUCCESS;		printf("No errors.\n");	} else {		status = EXIT_FAILURE;		printf("%d errors.\n", errors);	}	exit(status);}