10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 22*802Scf46844 /* 23*802Scf46844 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*802Scf46844 * Use is subject to license terms. 25*802Scf46844 */ 26*802Scf46844 270Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 280Sstevel@tonic-gate /* All Rights Reserved */ 290Sstevel@tonic-gate 300Sstevel@tonic-gate /* 310Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988 320Sstevel@tonic-gate * The Regents of the University of California 330Sstevel@tonic-gate * All Rights Reserved 340Sstevel@tonic-gate * 350Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from 360Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its 370Sstevel@tonic-gate * contributors. 380Sstevel@tonic-gate */ 390Sstevel@tonic-gate 400Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 410Sstevel@tonic-gate 420Sstevel@tonic-gate #include <stdio.h> 430Sstevel@tonic-gate /* 440Sstevel@tonic-gate * fold - fold long lines for finite output devices 450Sstevel@tonic-gate * 460Sstevel@tonic-gate */ 470Sstevel@tonic-gate 480Sstevel@tonic-gate int fold = 80; 490Sstevel@tonic-gate 50*802Scf46844 void putch(int c); 51*802Scf46844 52*802Scf46844 int 53*802Scf46844 main(int argc, char *argv[]) 540Sstevel@tonic-gate { 55*802Scf46844 int c; 560Sstevel@tonic-gate FILE *f; 570Sstevel@tonic-gate char obuf[BUFSIZ]; 580Sstevel@tonic-gate 590Sstevel@tonic-gate argc--, argv++; 600Sstevel@tonic-gate setbuf(stdout, obuf); 610Sstevel@tonic-gate if (argc > 0 && argv[0][0] == '-') { 620Sstevel@tonic-gate fold = 0; 630Sstevel@tonic-gate argv[0]++; 640Sstevel@tonic-gate while (*argv[0] >= '0' && *argv[0] <= '9') 650Sstevel@tonic-gate fold *= 10, fold += *argv[0]++ - '0'; 660Sstevel@tonic-gate if (*argv[0]) { 670Sstevel@tonic-gate printf("Bad number for fold\n"); 680Sstevel@tonic-gate exit(1); 690Sstevel@tonic-gate } 700Sstevel@tonic-gate argc--, argv++; 710Sstevel@tonic-gate } 720Sstevel@tonic-gate do { 730Sstevel@tonic-gate if (argc > 0) { 740Sstevel@tonic-gate if (freopen(argv[0], "r", stdin) == NULL) { 750Sstevel@tonic-gate perror(argv[0]); 760Sstevel@tonic-gate exit(1); 770Sstevel@tonic-gate } 780Sstevel@tonic-gate argc--, argv++; 790Sstevel@tonic-gate } 800Sstevel@tonic-gate for (;;) { 810Sstevel@tonic-gate c = getc(stdin); 820Sstevel@tonic-gate if (c == -1) 830Sstevel@tonic-gate break; 840Sstevel@tonic-gate putch(c); 850Sstevel@tonic-gate } 860Sstevel@tonic-gate } while (argc > 0); 87*802Scf46844 return (0); 880Sstevel@tonic-gate } 890Sstevel@tonic-gate 900Sstevel@tonic-gate int col; 910Sstevel@tonic-gate 92*802Scf46844 void 93*802Scf46844 putch(int c) 940Sstevel@tonic-gate { 95*802Scf46844 int ncol; 960Sstevel@tonic-gate 970Sstevel@tonic-gate switch (c) { 980Sstevel@tonic-gate case '\n': 990Sstevel@tonic-gate ncol = 0; 1000Sstevel@tonic-gate break; 1010Sstevel@tonic-gate case '\t': 1020Sstevel@tonic-gate ncol = (col + 8) &~ 7; 1030Sstevel@tonic-gate break; 1040Sstevel@tonic-gate case '\b': 1050Sstevel@tonic-gate ncol = col ? col - 1 : 0; 1060Sstevel@tonic-gate break; 1070Sstevel@tonic-gate case '\r': 1080Sstevel@tonic-gate ncol = 0; 1090Sstevel@tonic-gate break; 1100Sstevel@tonic-gate default: 1110Sstevel@tonic-gate ncol = col + 1; 1120Sstevel@tonic-gate } 1130Sstevel@tonic-gate if (ncol > fold) 1140Sstevel@tonic-gate putchar('\n'), col = 0; 1150Sstevel@tonic-gate putchar(c); 1160Sstevel@tonic-gate switch (c) { 1170Sstevel@tonic-gate case '\n': 1180Sstevel@tonic-gate col = 0; 1190Sstevel@tonic-gate break; 1200Sstevel@tonic-gate case '\t': 1210Sstevel@tonic-gate col += 8; 1220Sstevel@tonic-gate col &= ~7; 1230Sstevel@tonic-gate break; 1240Sstevel@tonic-gate case '\b': 1250Sstevel@tonic-gate if (col) 1260Sstevel@tonic-gate col--; 1270Sstevel@tonic-gate break; 1280Sstevel@tonic-gate case '\r': 1290Sstevel@tonic-gate col = 0; 1300Sstevel@tonic-gate break; 1310Sstevel@tonic-gate default: 1320Sstevel@tonic-gate col++; 1330Sstevel@tonic-gate break; 1340Sstevel@tonic-gate } 1350Sstevel@tonic-gate } 136