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
36 int
37 #if defined(__STDC__)
cs_strncmp(char * s1,char * s2,int n)38 cs_strncmp(
39 char * s1,
40 char * s2,
41 int n
42 )
43 #else
44 cs_strncmp(s1, s2, n)
45 register char *s1, *s2;
46 register 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