projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 936699f8 | 1 | /* |
| a6c6a0df RE |
2 | * Copyright (c) 1980 Regents of the University of California. |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| 6 | * @(#)s_paus.c 5.1 %G% | |
| 936699f8 DW |
7 | */ |
| 8 | ||
| 9 | #include <stdio.h> | |
| 10 | #define PAUSESIG 15 | |
| 11 | ||
| 12 | ||
| 13 | s_paus(s, n) | |
| 14 | char *s; | |
| 15 | long int n; | |
| 16 | { | |
| 17 | int i; | |
| 18 | int waitpause(); | |
| 19 | ||
| 20 | fprintf(stderr, "PAUSE: "); | |
| 21 | if(n > 0) | |
| 22 | { | |
| 23 | for(i = 0; i<n ; ++i) | |
| 24 | putc(*s++, stderr); | |
| 25 | putc('\n', stderr); | |
| 26 | } | |
| 27 | if( isatty(fileno(stdin)) ) | |
| 28 | { | |
| 29 | fprintf(stderr, "To resume execution, type: go\nAny other input will terminate the program.\n"); | |
| 30 | if( getchar()!='g' || getchar()!='o' || getchar()!='\n' ) | |
| 31 | { | |
| 32 | fprintf(stderr, "STOP\n"); | |
| 33 | f_exit(); | |
| 34 | _cleanup(); | |
| 35 | exit(0); | |
| 36 | } | |
| 37 | } | |
| 38 | else | |
| 39 | { | |
| 40 | fprintf(stderr, "To resume execution, type: kill -%d %d\n", | |
| 41 | PAUSESIG, getpid() ); | |
| 42 | signal(PAUSESIG, waitpause); | |
| 43 | pause(); | |
| 44 | } | |
| 45 | fprintf(stderr, "Execution resumed after PAUSE.\n"); | |
| 46 | } | |
| 47 | ||
| 48 | ||
| 49 | ||
| 50 | ||
| 51 | ||
| 52 | static waitpause() | |
| 53 | { | |
| 54 | return; | |
| 55 | } |