asm/main.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Fri, 05 Mar 2010 23:16:32 +0100
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permissions -rw-r--r--
crypt.h seems to be broken on many systems. The manpage tells me that i have to include unistd.h... committer: Markus Bröker <mbroeker@largo.homelinux.org>
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/**
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 * asm/main.c
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 * Copyright (C) 2008 Markus Broeker
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#ifndef TIMEOUT
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#define TIMEOUT 500
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#endif
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int get_sp ();
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void sigendian ()
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{
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    unsigned short word = 0x1234;
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    unsigned char *p = (unsigned char *)&word;
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    signal (SIGUSR1, sigendian);
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    printf ("%s Endian System\n", (p[0] == 0x34) ? "Little" : "Big");
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}
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void sigproc ()
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{
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    signal (SIGINT, sigproc);
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    printf ("Stack-Pointer is at %08x\n", get_sp ());
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}
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void sigquit ()
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{
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    printf ("Hmm... You got it, man!\n");
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    exit (0);
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}
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int main (int argc, char **argv)
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{
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    signal (SIGINT, sigproc);
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    signal (SIGUSR1, sigendian);
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    signal (SIGQUIT, sigquit);
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    for (;;)
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        usleep (TIMEOUT);
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    return EXIT_FAILURE;
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}