/* * 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; }