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/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
28
29#include "ctype.h"
30
31/*
32 * Compare strings (at most n bytes) ignoring case
33 *	returns: s1>s2; >0  s1==s2; 0  s1<s2; <0
34 */
35
36int
37#if	defined(__STDC__)
38cs_strncmp(
39	char *			s1,
40	char *			s2,
41	int			n
42)
43#else
44cs_strncmp(s1, s2, n)
45register char *s1, *s2;
46register n;
47#endif
48{
49	if(s1 == s2)
50		return(0);
51	while(--n >= 0 && toupper(*s1) == toupper(*s2++))
52		if(*s1++ == '\0')
53			return(0);
54	return((n < 0)? 0: (toupper(*s1) - toupper(*--s2)));
55}
56