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Annotation of prex-old/usr/test/signal/signal.c, Revision 1.1.1.1

1.1       nbrk        1: /*
                      2:  * Copyright (c) 2007, Kohsuke Ohtani
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. Neither the name of the author nor the names of any co-contributors
                     14:  *    may be used to endorse or promote products derived from this software
                     15:  *    without specific prior written permission.
                     16:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     27:  * SUCH DAMAGE.
                     28:  */
                     29:
                     30: /*
                     31:  * signal.c - test signal.
                     32:  */
                     33:
                     34: #include <sys/fcntl.h>
                     35: #include <unistd.h>
                     36: #include <signal.h>
                     37: #include <stdio.h>
                     38: #include <stdlib.h>
                     39:
                     40: static void gotsig(int sig);
                     41:
                     42: int
                     43: main(int argc, char *argv[])
                     44: {
                     45:        int ttyfd;
                     46:        pid_t pgrp;
                     47:
                     48:        printf("signal test program\n");
                     49:
                     50:        if ((ttyfd = open("/dev/tty", O_RDWR)) == -1) {
                     51:                printf("failed to open tty\n");
                     52:                exit(1);
                     53:        }
                     54:        pgrp = getpgrp();
                     55:        printf("tcsetpgrp=%x\n", pgrp);
                     56:        tcsetpgrp(ttyfd, pgrp);
                     57:        for  (;;);
                     58:
                     59:        signal(SIGINT, gotsig);
                     60: }
                     61:
                     62: static void
                     63: gotsig(int sig)
                     64: {
                     65:        printf("Got signal: %d\n", sig);
                     66: }