.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by the University of
-.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\" SUCH DAMAGE.
.\"
.\" @(#)strcasecmp.3 8.1 (Berkeley) 6/9/93
-.\" $FreeBSD: src/lib/libc/string/strcasecmp.3,v 1.11 2003/09/08 19:57:15 ru Exp $
+.\" $FreeBSD: src/lib/libc/string/strcasecmp.3,v 1.13 2009/04/07 13:42:53 trasz Exp $
.\"
.Dd June 9, 1993
.Dt STRCASECMP 3
.Os
.Sh NAME
.Nm strcasecmp ,
-.Nm strncasecmp
+.Nm strcasecmp_l ,
+.Nm strncasecmp ,
+.Nm strncasecmp_l
.Nd compare strings, ignoring case
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In strings.h
.Ft int
-.Fn strcasecmp "const char *s1" "const char *s2"
+.Fo strcasecmp
+.Fa "const char *s1"
+.Fa "const char *s2"
+.Fc
.Ft int
-.Fn strncasecmp "const char *s1" "const char *s2" "size_t len"
+.Fo strncasecmp
+.Fa "const char *s1"
+.Fa "const char *s2"
+.Fa "size_t n"
+.Fc
+.In strings.h
+.In xlocale.h
+.Ft int
+.Fo strcasecmp_l
+.Fa "const char *s1"
+.Fa "const char *s2"
+.Fa "locale_t loc"
+.Fc
+.Ft int
+.Fo strncasecmp_l
+.Fa "const char *s1"
+.Fa "const char *s2"
+.Fa "size_t n"
+.Fa "locale_t loc"
+.Fc
.Sh DESCRIPTION
The
.Fn strcasecmp
The
.Fn strncasecmp
compares at most
-.Fa len
+.Fa n
characters.
+.Pp
+Although the
+.Fn strcasecmp
+and
+.Fn strncasecmp
+functions use the current locale, the
+.Fn strcasecmp_l
+and
+.Fn strncasecmp_l
+functions may be passed locales directly. See
+.Xr xlocale 3
+for more information.
.Sh RETURN VALUES
The
.Fn strcasecmp
.Xr strcmp 3 ,
.Xr strcoll 3 ,
.Xr strxfrm 3 ,
-.Xr tolower 3
+.Xr tolower 3 ,
+.Xr xlocale 3
.Sh HISTORY
The
.Fn strcasecmp