usr/src/usr.lib/libF77/s_paus.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)s_paus.c    5.1     6/7/85
 */

#include <stdio.h>
#define PAUSESIG 15


s_paus(s, n)
char *s;
long int n;
{
int i;
int waitpause();

fprintf(stderr, "PAUSE: ");
if(n > 0)
        {
        for(i = 0; i<n ; ++i)
                putc(*s++, stderr);
        putc('\n', stderr);
        }
if( isatty(fileno(stdin)) )
        {
        fprintf(stderr, "To resume execution, type:   go\nAny other input will terminate the program.\n");
        if( getchar()!='g' || getchar()!='o' || getchar()!='\n' )
                {
                fprintf(stderr, "STOP\n");
                f_exit();
                _cleanup();
                exit(0);
                }
        }
else
        {
        fprintf(stderr, "To resume execution, type:    kill -%d %d\n",
                PAUSESIG, getpid() );
        signal(PAUSESIG, waitpause);
        pause();
        }
fprintf(stderr, "Execution resumed after PAUSE.\n");
}


static waitpause()
{
return;
}