xref: /onnv-gate/usr/src/cmd/sh/string.c (revision 527:cb400a149efa)
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*527Schin 
23*527Schin /*
24*527Schin  * Copyright 1995 Sun Microsystems, Inc.  All rights reserved.
25*527Schin  * Use is subject to license terms.
26*527Schin  */
27*527Schin 
280Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
290Sstevel@tonic-gate /*	  All Rights Reserved  	*/
300Sstevel@tonic-gate 
310Sstevel@tonic-gate 
32*527Schin #pragma ident	"%Z%%M%	%I%	%E% SMI"
330Sstevel@tonic-gate /*
340Sstevel@tonic-gate  * UNIX shell
350Sstevel@tonic-gate  */
360Sstevel@tonic-gate 
370Sstevel@tonic-gate #include	"defs.h"
380Sstevel@tonic-gate 
390Sstevel@tonic-gate 
400Sstevel@tonic-gate /* ========	general purpose string handling ======== */
410Sstevel@tonic-gate 
420Sstevel@tonic-gate 
430Sstevel@tonic-gate unsigned char *
movstr(unsigned char * a,unsigned char * b)44*527Schin movstr(unsigned char *a, unsigned char *b)
450Sstevel@tonic-gate {
460Sstevel@tonic-gate 	while (*b++ = *a++);
470Sstevel@tonic-gate 	return(--b);
480Sstevel@tonic-gate }
490Sstevel@tonic-gate 
50*527Schin int
any(wchar_t c,unsigned char * s)51*527Schin any(wchar_t c, unsigned char *s)
520Sstevel@tonic-gate {
53*527Schin 	unsigned int d;
540Sstevel@tonic-gate 
550Sstevel@tonic-gate 	while (d = *s++)
560Sstevel@tonic-gate 	{
570Sstevel@tonic-gate 		if (d == c)
580Sstevel@tonic-gate 			return(TRUE);
590Sstevel@tonic-gate 	}
600Sstevel@tonic-gate 	return(FALSE);
610Sstevel@tonic-gate }
620Sstevel@tonic-gate 
anys(c,s)630Sstevel@tonic-gate int anys(c, s)
640Sstevel@tonic-gate unsigned char *c, *s;
650Sstevel@tonic-gate {
660Sstevel@tonic-gate 	wchar_t f, e;
67*527Schin 	wchar_t d;
68*527Schin 	int n;
690Sstevel@tonic-gate 	if((n = mbtowc(&f, (char *)c, MULTI_BYTE_MAX)) <= 0)
700Sstevel@tonic-gate 		return(FALSE);
710Sstevel@tonic-gate 	d = f;
720Sstevel@tonic-gate 	while(1) {
730Sstevel@tonic-gate 		if((n = mbtowc(&e, (char *)s, MULTI_BYTE_MAX)) <= 0)
740Sstevel@tonic-gate 			return(FALSE);
750Sstevel@tonic-gate 		if(d == e)
760Sstevel@tonic-gate 			return(TRUE);
770Sstevel@tonic-gate 		s += n;
780Sstevel@tonic-gate 	}
790Sstevel@tonic-gate }
800Sstevel@tonic-gate 
81*527Schin int
cf(unsigned char * s1,unsigned char * s2)82*527Schin cf(unsigned char *s1, unsigned char *s2)
830Sstevel@tonic-gate {
840Sstevel@tonic-gate 	while (*s1++ == *s2)
850Sstevel@tonic-gate 		if (*s2++ == 0)
860Sstevel@tonic-gate 			return(0);
870Sstevel@tonic-gate 	return(*--s1 - *s2);
880Sstevel@tonic-gate }
890Sstevel@tonic-gate 
length(as)900Sstevel@tonic-gate int length(as)
910Sstevel@tonic-gate unsigned char	*as;
920Sstevel@tonic-gate {
93*527Schin 	unsigned char	*s;
940Sstevel@tonic-gate 
950Sstevel@tonic-gate 	if (s = as)
960Sstevel@tonic-gate 		while (*s++);
970Sstevel@tonic-gate 	return(s - as);
980Sstevel@tonic-gate }
990Sstevel@tonic-gate 
1000Sstevel@tonic-gate unsigned char *
movstrn(unsigned char * a,unsigned char * b,int n)101*527Schin movstrn(unsigned char *a, unsigned char *b, int n)
1020Sstevel@tonic-gate {
1030Sstevel@tonic-gate 	while ((n-- > 0) && *a)
1040Sstevel@tonic-gate 		*b++ = *a++;
1050Sstevel@tonic-gate 
1060Sstevel@tonic-gate 	return(b);
1070Sstevel@tonic-gate }
108