#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>


/*
** never core dump.
*/

/*
 * Signals that cause a core dump
 *
 *    SIGQUIT      3    Core     Quit (see termio(7I))
 *    SIGILL       4    Core     Illegal Instruction
 *    SIGTRAP      5    Core     Trace/Breakpoint Trap
 *    SIGABRT      6    Core     Abort
 *    SIGEMT       7    Core     Emulation Trap
 *    SIGFPE       8    Core     Arithmetic Exception
 *    SIGBUS       10   Core     Bus Error
 *    SIGSEGV      11   Core     Segmentation Fault
 *    SIGSYS       12   Core     Bad System Call
 *    SIGXCPU      30   Core     CPU time limit exceeded (see getrlimit(2))
 *    SIGXFSZ      31   Core     File size limit exceeded (see getrlimit(2))
 */

static void noCoredump(void)
{
#ifdef SIGQUIT
    signal(SIGQUIT, SIG_IGN );
#endif /* SIGQUIT */

#ifdef SIGILL
    signal(SIGILL, SIG_IGN );
#endif /* SIGILL */

#ifdef SIGTRAP
    signal(SIGTRAP, SIG_IGN );
#endif /* SIGTRAP */

#ifdef SIGABRT
    signal(SIGABRT, SIG_IGN );
#endif /* SIGABRT */

#ifdef SIGEMT
    signal(SIGEMT, SIG_IGN );
#endif /* SIGEMT */

#ifdef SIGFPE
    signal(SIGFPE, SIG_IGN );
#endif /* SIGFPE */

#ifdef SIGBUS
    signal(SIGBUS, SIG_IGN );
#endif /* SIGBUS */

#ifdef SIGSEGV
    signal(SIGSEGV, SIG_IGN );
#endif /* SIGSEGV */

#ifdef SIGSYS
    signal(SIGSYS, SIG_IGN );
#endif /* SIGSYS */

#ifdef SIGXCPU
    signal(SIGXCPU, SIG_IGN );
#endif /* SIGXCPU */

#ifdef SIGXFSZ
    signal(SIGXFSZ, SIG_IGN );
#endif /* SIGXFSZ */

}

static void daemonize(void)
{
    int i;

    if (fork())
    {
        _exit(0);   /* parent goes bye-bye */
    }

    /*
    ** detach from terminal
    */
#ifdef HAVE_SETSID
    setsid();   /* request a new session */
#else  
#ifdef TIOCNOTTY
    i=open("/dev/tty",O_RDWR);
    if (i >= 0)
    {
        ioctl(i, (int)TIOCNOTTY, (char *)NULL);
        close(i);
    }
#endif  /* TIO CNOTTY */
#endif  /* HAVE_SETSID */


    chdir("/");
    umask(0);

}

/*
** duplicate a string
*/
static char *mystrdup (char *string)
{
    char *tmp;

    if (string == (char *) NULL)
        return ((char *) NULL);

    tmp = (char *) malloc ((int) strlen(string) + 1);
    if (tmp == (char *) NULL)
    {
        perror("memory allocation problem mystrdup()");
        exit(0);
    }
    /* it's safe to copy this way */
    (void) strcpy(tmp,string);
    tmp[strlen(tmp)+1]='\0';
    return (tmp);
}