1.\" Copyright (c) 1990, 1991 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. All advertising materials mentioning features or use of this software 17.\" must display the following acknowledgement: 18.\" This product includes software developed by the University of 19.\" California, Berkeley and its contributors. 20.\" 4. Neither the name of the University nor the names of its contributors 21.\" may be used to endorse or promote products derived from this software 22.\" without specific prior written permission. 23.\" 24.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34.\" SUCH DAMAGE. 35.\" 36.\" from: @(#)strcpy.3 5.4 (Berkeley) 6/29/91 37.\" $NetBSD: strcpy.3,v 1.4 1997/11/14 02:04:54 mrg Exp $ 38.\" 39.Dd June 29, 1991 40.Dt STRCPY 3 41.Os BSD 4 42.Sh NAME 43.Nm strcpy , 44.Nm strncpy 45.Nd copy strings 46.Sh SYNOPSIS 47.Fd #include <string.h> 48.Ft char * 49.Fn strcpy "char *dst" "const char *src" 50.Ft char * 51.Fn strncpy "char *dst" "const char *src" "size_t len" 52.Sh DESCRIPTION 53The 54.Fn strcpy 55and 56.Fn strncpy 57functions 58copy the string 59.Fa src 60to 61.Fa dst 62(including the terminating 63.Ql \e0 64character). 65.Pp 66The 67.Fn strncpy 68copies not more than 69.Fa len 70characters into 71.Fa dst , 72appending 73.Ql \e0 74characters if 75.Fa src 76is less than 77.Fa len 78characters long, and 79.Em not 80terminating 81.Fa dst 82if 83.Fa src 84is more than 85.Fa len 86characters long. 87.Sh RETURN VALUES 88The 89.Fn strcpy 90and 91.Fn strncpy 92functions 93return 94.Fa dst . 95.Sh EXAMPLES 96The following sets 97.Dq Li chararray 98to 99.Dq Li abc\e0\e0\e0 : 100.Bd -literal -offset indent 101(void)strncpy(chararray, "abc", 6). 102.Ed 103.Pp 104The following sets 105.Dq Li chararray 106to 107.Dq Li abcdef : 108.Bd -literal -offset indent 109(void)strncpy(chararray, "abcdefgh", 6); 110.Ed 111.Sh SEE ALSO 112.Xr bcopy 3 , 113.Xr memccpy 3 , 114.Xr memcpy 3 , 115.Xr memmove 3 116.Sh STANDARDS 117The 118.Fn strcpy 119and 120.Fn strncpy 121functions 122conform to 123.St -ansiC . 124