.\" 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.
-.\" 4. Neither the name of the University nor the names of its contributors
+.\" 3. 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.
.\"
.\" @(#)strstr.3 8.1 (Berkeley) 6/4/93
-.\" $FreeBSD: src/lib/libc/string/strstr.3,v 1.15 2009/04/07 13:42:53 trasz Exp $
+.\" $FreeBSD$
.\"
.Dd October 11, 2001
.Dt STRSTR 3
.Os
.Sh NAME
-.Nm strcasestr ,
-.Nm strcasestr_l ,
-.Nm strnstr ,
-.Nm strstr
+.Nm strstr , strcasestr , strnstr
.Nd locate a substring in a string
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In string.h
.Ft char *
-.Fo strcasestr
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fc
+.Fn strstr "const char *big" "const char *little"
.Ft char *
-.Fo strnstr
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fa "size_t n"
-.Fc
+.Fn strcasestr "const char *big" "const char *little"
.Ft char *
-.Fo strstr
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fc
+.Fn strnstr "const char *big" "const char *little" "size_t len"
.In string.h
.In xlocale.h
.Ft char *
-.Fo strcasestr_l
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fa "locale_t loc"
-.Fc
+.Fn strcasestr_l "const char *big" "const char *little" "locale_t loc"
.Sh DESCRIPTION
The
.Fn strstr
function
locates the first occurrence of the null-terminated string
-.Fa s2
+.Fa little
in the null-terminated string
-.Fa s1 .
+.Fa big .
.Pp
The
.Fn strcasestr
.Fn strnstr
function
locates the first occurrence of the null-terminated string
-.Fa s2
+.Fa little
in the string
-.Fa s1 ,
+.Fa big ,
where not more than
-.Fa n
+.Fa len
characters are searched.
Characters that appear after a
.Ql \e0
for more information.
.Sh RETURN VALUES
If
-.Fa s2
+.Fa little
is an empty string,
-.Fa s1
+.Fa big
is returned;
if
-.Fa s2
+.Fa little
occurs nowhere in
-.Fa s1 ,
+.Fa big ,
.Dv NULL
is returned;
otherwise a pointer to the first character of the first occurrence of
-.Fa s2
+.Fa little
is returned.
.Sh EXAMPLES
The following sets the pointer
.Ed
.Sh SEE ALSO
.Xr memchr 3 ,
+.Xr memmem 3 ,
.Xr strchr 3 ,
.Xr strcspn 3 ,
.Xr strpbrk 3 ,