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-.\" 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 and the American National Standards Committee X3,
-.\" on Information Processing Systems.
-.\"
-.\" 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)
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-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)strcpy.3	8.1 (Berkeley) 6/4/93
-.\" $FreeBSD$
-.\"
-.Dd February 28, 2009
-.Dt STRCPY 3
-.Os
-.Sh NAME
-.Nm stpcpy, stpncpy, strcpy , strncpy
-.Nd copy strings
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In string.h
-.Ft char *
-.Fn stpcpy "char * dst" "const char * src"
-.Ft char *
-.Fn stpncpy "char * dst" "const char * src" "size_t len"
-.Ft char *
-.Fn strcpy "char * dst" "const char * src"
-.Ft char *
-.Fn strncpy "char * dst" "const char * src" "size_t len"
-.Sh ADMONISHMENT
-.Pp
-.ti +8
-.Pp
-YOU SHOULD ALMOST CERTAINLY USE
-.Fn strlcpy
-INSTEAD.
-.ti +8
-.Pp
-See "Examples" below.
-.Sh DESCRIPTION
-The
-.Fn stpcpy
-and
-.Fn strcpy
-functions
-copy the string
-.Fa src
-to
-.Fa dst
-(including the terminating
-.Ql \e0
-character.)
-.Pp
-The
-.Fn stpncpy
-and
-.Fn strncpy
-functions copy at most
-.Fa len
-characters from
-.Fa src
-into
-.Fa dst .
-If
-.Fa src
-is less than
-.Fa len
-characters long,
-the remainder of
-.Fa dst
-is filled with
-.Ql \e0
-characters.
-Otherwise,
-.Fa dst
-is
-.Em not
-terminated.
-.Pp
-The source and destination strings should not overlap, as the
-behavior is undefined.
-.Sh RETURN VALUES
-The
-.Fn strcpy
-and
-.Fn strncpy
-functions
-return
-.Fa dst .
-The
-.Fn stpcpy
-and
-.Fn stpncpy
-functions return a pointer to the terminating
-.Ql \e0
-character of
-.Fa dst .
-If
-.Fn stpncpy
-does not terminate
-.Fa dst
-with a
-.Dv NUL
-character, it instead returns a pointer to
-.Li dst[n]
-(which does not necessarily refer to a valid memory location.)
-.Sh EXAMPLES
-The following sets
-.Va chararray
-to
-.Dq Li abc\e0\e0\e0 :
-.Bd -literal -offset indent
-char chararray[6];
-
-(void)strncpy(chararray, "abc", sizeof(chararray));
-.Ed
-.Pp
-The following sets
-.Va chararray
-to
-.Dq Li abcdef :
-.Bd -literal -offset indent
-char chararray[6];
-
-(void)strncpy(chararray, "abcdefgh", sizeof(chararray));
-.Ed
-.Pp
-Note that it does
-.Em not
-.Tn NUL
-terminate
-.Va chararray
-because the length of the source string is greater than or equal
-to the length argument.
-.Pp
-The following copies as many characters from
-.Va input
-to
-.Va buf
-as will fit and
-.Tn NUL
-terminates the result.
-Because
-.Fn strncpy
-does
-.Em not
-guarantee to
-.Tn NUL
-terminate the string itself, this must be done explicitly.
-.Bd -literal -offset indent
-char buf[1024];
-
-(void)strncpy(buf, input, sizeof(buf) - 1);
-buf[sizeof(buf) - 1] = '\e0';
-.Ed
-.Pp
-This could be better achieved using
-.Xr strlcpy 3 ,
-as shown in the following example:
-.Pp
-.Dl "(void)strlcpy(buf, input, sizeof(buf));"
-.Pp
-Note that because
-.Xr strlcpy 3
-is not defined in any standards, it should
-only be used when portability is not a concern.
-.Sh SEE ALSO
-.Xr bcopy 3 ,
-.Xr memccpy 3 ,
-.Xr memcpy 3 ,
-.Xr memmove 3 ,
-.Xr strlcpy 3 ,
-.Xr wcscpy 3
-.Sh STANDARDS
-The
-.Fn strcpy
-and
-.Fn strncpy
-functions
-conform to
-.St -isoC .
-The
-.Fn stpcpy
-and
-.Fn stpncpy
-functions conform to
-.St -p1003.1-2008 .
-.Sh HISTORY
-The
-.Fn stpcpy
-function first appeared in
-.Fx 4.4 ,
-and
-.Fn stpncpy
-was added in
-.Fx 8.0 .
-.Sh SECURITY CONSIDERATIONS
-The
-.Fn strcpy
-function is easily misused in a manner which enables malicious users
-to arbitrarily change a running program's functionality through a
-buffer overflow attack.