1.\" $OpenBSD: strcmp.9,v 1.2 2018/04/23 11:11:38 jmc Exp $ 2.\" 3.\" Copyright (c) 2002, 2003 CubeSoft Communications, Inc. 4.\" <http://www.csoft.org> 5.\" 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.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE 25.\" POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd $Mdocdate: April 23 2018 $ 28.Dt STRCMP 9 29.Os 30.Sh NAME 31.Nm strlen , 32.Nm strnlen , 33.Nm strncpy , 34.Nm strlcpy , 35.Nm strlcat , 36.Nm strcmp , 37.Nm strncmp , 38.Nm strncasecmp 39.Nd kernel library string routines 40.Sh SYNOPSIS 41.In lib/libkern/libkern.h 42.Ft size_t 43.Fn strlen "const char *s" 44.Ft size_t 45.Fn strnlen "const char *s" "size_t maxlen" 46.Ft char * 47.Fn strncpy "char *dst" "const char *src" "size_t len" 48.Ft size_t 49.Fn strlcpy "char *dst" "const char *src" "size_t size" 50.Ft size_t 51.Fn strlcat "char *dst" "const char *src" "size_t size" 52.Ft int 53.Fn strcmp "const char *s1" "const char *s2" 54.Ft int 55.Fn strncmp "const char *s1" "const char *s2" "size_t len" 56.Ft int 57.Fn strncasecmp "const char *s1" "const char *s2" "size_tlen" 58.Sh DESCRIPTION 59These functions have the same semantics as their libc counterparts, 60.Xr strlen 3 , 61.Xr strncpy 3 , 62.Xr strnlen 3 , 63.Xr strlcpy 3 , 64.Xr strlcat 3 , 65.Xr strcmp 3 , 66.Xr strncmp 3 67and 68.Xr strncasecmp 3 . 69.Sh SEE ALSO 70.Xr strcmp 3 , 71.Xr strlcat 3 , 72.Xr strlcpy 3 , 73.Xr strlen 3 , 74.Xr strncmp 3 , 75.Xr strncpy 3 , 76.Xr strnlen 3 77.Sh STANDARDS 78The 79.Fn strlen , 80.Fn strncpy , 81.Fn strcmp , 82.Fn strncmp 83and 84.Fn strcasecmp 85functions conform to 86.St -ansiC . 87