1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */ 27 /* 28 Place the `len' length substring of `as' starting at `as[origin]' 29 in `aresult'. 30 Return `aresult'. 31 32 Note: The copying of as to aresult stops if either the 33 specified number (len) characters have been copied, 34 or if the end of as is found. 35 A negative len generally guarantees that everything gets copied. 36 */ 37 38 char *substr(as, aresult, origin, len) 39 char *as, *aresult; 40 int origin; 41 register unsigned len; 42 { 43 register char *s, *result; 44 45 s = as + origin; 46 result = aresult; 47 ++len; 48 while (--len && (*result++ = *s++)) ; 49 if (len == 0) 50 *result = 0; 51 return(aresult); 52 } 53