1.\" $NetBSD: scanc.9,v 1.2 2011/11/01 23:18:07 wiz Exp $ 2.\" 3.\" Copyright (c)2011 YAMAMOTO Takashi, 4.\" All rights reserved. 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 AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" ------------------------------------------------------------ 28.Dd November 1, 2011 29.Dt SCANC 9 30.Os 31.\" ------------------------------------------------------------ 32.Sh NAME 33.Nm scanc 34.Nd use byte string as lookup table index 35.\" ------------------------------------------------------------ 36.Sh SYNOPSIS 37.In lib/libkern/libkern.h 38.\" - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39.Ft int 40.Fn scanc \ 41"size_t size" "const u_char *cp" "const u_char table[]" "int mask" 42.\" ------------------------------------------------------------ 43.Sh DESCRIPTION 44The 45.Fn scanc 46function scans the byte string 47.Fa cp , 48whose length is 49.Fa size . 50A character in the string is used as an index in the 256-byte 51.Fa table . 52If a bitwise-AND of the byte from the table and 53.Fa mask 54isn't zero or the string is exhausted, the scan stops. 55.\" ------------------------------------------------------------ 56.Sh RETURN VALUES 57The 58.Fn scanc 59function returns the number of characters skipped. 60.\" ------------------------------------------------------------ 61.Sh HISTORY 62The 63.Fn scanc 64function emulates a VAX instruction with the same name. 65