1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek. 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" from: @(#)bstring.3 8.1 (Berkeley) 6/4/93 35.\" $NetBSD: bstring.3,v 1.7 2002/02/07 07:00:31 ross Exp $ 36.\" 37.Dd June 4, 1993 38.Dt BSTRING 3 39.Os 40.Sh NAME 41.Nm bcmp , 42.Nm bcopy , 43.Nm bzero , 44.Nm memccpy , 45.Nm memchr , 46.Nm memcmp , 47.Nm memcpy , 48.Nm memmove , 49.Nm memset 50.Nd byte string operations 51.Sh LIBRARY 52.Lb libc 53.Sh SYNOPSIS 54.Fd #include \*[Lt]string.h\*[Gt] 55.Ft int 56.Fn bcmp "const void *b1" "const void *b2" "size_t len" 57.Ft void 58.Fn bcopy "const void *src" "void *dst" "size_t len" 59.Ft void 60.Fn bzero "void *b" "size_t len" 61.Ft void * 62.Fn memchr "const void *b" "int c" "size_t len" 63.Ft int 64.Fn memcmp "const void *b1" "const void *b2" "size_t len" 65.Ft void * 66.Fn memccpy "void *dst" "const void *src" "int c" "size_t len" 67.Ft void * 68.Fn memcpy "void *dst" "const void *src" "size_t len" 69.Ft void * 70.Fn memmove "void *dst" "const void *src" "size_t len" 71.Ft void * 72.Fn memset "void *b" "int c" "size_t len" 73.Sh DESCRIPTION 74These functions operate on variable length strings of bytes. 75They do not check for terminating null bytes as the routines 76listed in 77.Xr string 3 78do. 79.Pp 80See the specific manual pages for more information. 81.Sh SEE ALSO 82.Xr bcmp 3 , 83.Xr bcopy 3 , 84.Xr bzero 3 , 85.Xr memccpy 3 , 86.Xr memchr 3 , 87.Xr memcmp 3 , 88.Xr memcpy 3 , 89.Xr memmove 3 , 90.Xr memset 3 91.Sh STANDARDS 92The functions 93.Fn memchr , 94.Fn memcmp , 95.Fn memcpy , 96.Fn memmove , 97and 98.Fn memset 99conform to 100.St -ansiC . 101.Sh HISTORY 102The functions 103.Fn bzero 104and 105.Fn memccpy 106appeared in 107.Bx 4.3 ; 108the functions 109.Fn bcmp , 110.Fn bcopy , 111appeared in 112.Bx 4.2 . 113