1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)gets.c 8.1 (Berkeley) 6/11/93 34 * $Id: gets.c,v 1.1 1994/01/26 02:03:47 brezak Exp $ 35 */ 36 37 gets(buf) 38 char *buf; 39 { 40 register int c; 41 register char *lp; 42 43 for (lp = buf;;) 44 switch (c = getchar() & 0177) { 45 case '\n': 46 case '\r': 47 *lp = '\0'; 48 return; 49 case '\b': 50 case '\177': 51 if (lp > buf) { 52 lp--; 53 putchar('\b'); 54 putchar(' '); 55 putchar('\b'); 56 } 57 break; 58 case '#': 59 if (lp > buf) 60 --lp; 61 break; 62 case 'r'&037: { 63 register char *p; 64 65 putchar('\n'); 66 for (p = buf; p < lp; ++p) 67 putchar(*p); 68 break; 69 } 70 case '@': 71 case 'u'&037: 72 case 'w'&037: 73 lp = buf; 74 putchar('\n'); 75 break; 76 default: 77 *lp++ = c; 78 } 79 /*NOTREACHED*/ 80 } 81