Subject: Re: lib/34238: wcsdup, wcscasecmp and wcsncasecmp functions
To: None <lib-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: Aleksey Cheusov <cheusov@tut.by>
List: netbsd-bugs
Date: 08/26/2006 14:05:17
The following reply was made to PR lib/34238; it has been noted by GNATS.

From: Aleksey Cheusov <cheusov@tut.by>
To: gnats-bugs@NetBSD.org
Cc: lib-bug-people@NetBSD.org, gnats-admin@NetBSD.org,
	netbsd-bugs@NetBSD.org
Subject: Re: lib/34238: wcsdup, wcscasecmp and wcsncasecmp functions
Date: Sat, 26 Aug 2006 15:06:36 +0300

 --=-=-=
 
  >> On Aug 19, 10:15pm, cheusov@tut.by (Aleksey Cheusov) wrote:
  >> -- Subject: lib/34238: wcsdup, wcscasecmp and wcsncasecmp functions
  >> 
  >> | Despite the fact that these funcs are not standard, I hope
  >> | you'll find them helpful, if yes, I can make patch for man pages
  >> | too.
  >> 
  >> Thanks, can you make the man page patch please?
  >> 
  >> christos
 
 
 --=-=-=
 Content-Disposition: attachment; filename=wcsdup.3
 Content-Description: wcdup man page
 
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 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. 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.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)strdup.3	8.1 (Berkeley) 6/9/93
 .\"	$NetBSD$
 .\"
 .Dd August 25, 2006
 .Dt WCSDUP 3
 .Os
 .Sh NAME
 .Nm wcsdup
 .Nd save a copy of a string
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In wchar.h
 .Ft wchar_t *
 .Fn wcsdup "const wchar_t *str"
 .Sh DESCRIPTION
 The
 .Fn wcsdup
 function
 allocates sufficient memory for a copy
 of the wide character string
 .Fa str ,
 does the copy, and returns a pointer to it.
 The pointer may subsequently be used as an
 argument to the function
 .Xr free 3 .
 .Pp
 If insufficient memory is available, NULL is returned.
 .Sh EXAMPLES
 The following will point
 .Va p
 to an allocated area of memory containing the null-terminated string
 .Qq foobar :
 .Bd -literal -offset indent
 wchar_t *p;
 
 if (p = wcsdup(L"foobar"), p == NULL) {
 	fprintf(stderr, "Out of memory.\en");
 	exit(1);
 }
 .Ed
 .Sh ERRORS
 The
 .Fn wcsdup
 function may fail and set the external variable
 .Va errno
 for any of the errors specified for the library function
 .Xr malloc 3 .
 .Sh SEE ALSO
 .Xr malloc 3 ,
 .Xr free 3 ,
 .Xr strdup 3 ,
 .Sh HISTORY
 The
 .Fn wcsdup
 function first appeared in
 .Nx 4.0 .
 
 --=-=-=
 Content-Disposition: attachment; filename=wcscasecmp.3
 Content-Description: wcscasecmp man page
 
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" This code is derived from software contributed to Berkeley by
 .\" Chris Torek.
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 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. 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.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)wcscasecmp.3	8.1 (Berkeley) 6/9/93
 .\"	$NetBSD$
 .\"
 .Dd 24 8, 2006
 .Dt WCSCASECMP 3
 .Os
 .Sh NAME
 .Nm wcscasecmp ,
 .Nm wcsncasecmp
 .Nd compare wide character strings, ignoring case
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In wchar.h
 .Ft int
 .Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2"
 .Ft int
 .Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t len"
 .Sh DESCRIPTION
 The
 .Fn wcscasecmp
 and
 .Fn wcsncasecmp
 functions
 compare the null-terminated strings
 .Fa s1
 and
 .Fa s2
 and return an integer greater than, equal to, or less than 0,
 according to whether
 .Fa s1
 is lexicographically greater than, equal to, or less than
 .Fa s2
 after translation of each corresponding character to lower-case.
 The strings themselves are not modified.
 .Pp
 The
 .Fn wcsncasecmp
 compares at most
 .Fa len
 characters.
 .Sh SEE ALSO
 .Xr wcscmp 3 ,
 .Sh HISTORY
 The
 .Fn wcscasecmp
 and
 .Fn wcsncasecmp
 functions first appeared in
 .Nx 4.0
 .Sh NOTES
 If
 .Fa len
 is zero
 .Fn wcsncasecmp
 returns always 0.
 
 --=-=-=
 
 
 >  and copyright notices?
 
 Is this ok?
 
 /*
  * Copyright (C) 2006 Aleksey Cheusov
  *
  * This material is provided "as is", with absolutely no warranty expressed
  * or implied. Any use is at your own risk.
  *
  * Permission to use or copy this software for any purpose is hereby granted 
  * without fee. Permission to modify the code and to distribute modified
  * code is also granted without any restrictions.
  */
 
 P.S.
 from man strncmp
 NOTES
      If len is zero strncmp() returns always 0.
 but 
  if (n == 0)
    return (0);
 is placed AFTER asserts.
 
 P.P.S.
 If you'll add
  if (n == 0)
    return (0);
  in wcsncasecmp before asserts you can add it too.
 
 -- 
 Best regards, Aleksey Cheusov.
 
 --=-=-=--