16050c8feSAndre Oppermann.\" Copyright (c) 2005 Pascal Gloor <pascal.gloor@spale.com> 26050c8feSAndre Oppermann.\" 36050c8feSAndre Oppermann.\" Redistribution and use in source and binary forms, with or without 46050c8feSAndre Oppermann.\" modification, are permitted provided that the following conditions 56050c8feSAndre Oppermann.\" are met: 66050c8feSAndre Oppermann.\" 1. Redistributions of source code must retain the above copyright 76050c8feSAndre Oppermann.\" notice, this list of conditions and the following disclaimer. 86050c8feSAndre Oppermann.\" 2. Redistributions in binary form must reproduce the above copyright 96050c8feSAndre Oppermann.\" notice, this list of conditions and the following disclaimer in the 106050c8feSAndre Oppermann.\" documentation and/or other materials provided with the distribution. 116050c8feSAndre Oppermann.\" 3. The name of the author may not be used to endorse or promote 126050c8feSAndre Oppermann.\" products derived from this software without specific prior written 136050c8feSAndre Oppermann.\" permission. 146050c8feSAndre Oppermann.\" 156050c8feSAndre Oppermann.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 166050c8feSAndre Oppermann.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 176050c8feSAndre Oppermann.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 186050c8feSAndre Oppermann.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 196050c8feSAndre Oppermann.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 206050c8feSAndre Oppermann.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 216050c8feSAndre Oppermann.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 226050c8feSAndre Oppermann.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 236050c8feSAndre Oppermann.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 246050c8feSAndre Oppermann.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 256050c8feSAndre Oppermann.\" SUCH DAMAGE. 266050c8feSAndre Oppermann.\" 27ca513774SRuslan Ermilov.\" $FreeBSD$ 286050c8feSAndre Oppermann.\" 296050c8feSAndre Oppermann.Dd August 24, 2005 306050c8feSAndre Oppermann.Dt MEMMEM 3 316050c8feSAndre Oppermann.Os 326050c8feSAndre Oppermann.Sh NAME 336050c8feSAndre Oppermann.Nm memmem 34ca513774SRuslan Ermilov.Nd "locate a byte substring in a byte string" 356050c8feSAndre Oppermann.Sh LIBRARY 366050c8feSAndre Oppermann.Lb libc 376050c8feSAndre Oppermann.Sh SYNOPSIS 386050c8feSAndre Oppermann.In string.h 39ca513774SRuslan Ermilov.Ft "void *" 40ca513774SRuslan Ermilov.Fo memmem 4136c71f6aSRuslan Ermilov.Fa "const void *big" "size_t big_len" 4236c71f6aSRuslan Ermilov.Fa "const void *little" "size_t little_len" 43ca513774SRuslan Ermilov.Fc 446050c8feSAndre Oppermann.Sh DESCRIPTION 456050c8feSAndre OppermannThe 466050c8feSAndre Oppermann.Fn memmem 476050c8feSAndre Oppermannfunction 486050c8feSAndre Oppermannlocates the first occurrence of the byte string 496050c8feSAndre Oppermann.Fa little 506050c8feSAndre Oppermannin the byte string 516050c8feSAndre Oppermann.Fa big . 526050c8feSAndre Oppermann.Sh RETURN VALUES 536050c8feSAndre OppermannIf 546050c8feSAndre Oppermann.Fa big_len 556050c8feSAndre Oppermannis smaller than 566050c8feSAndre Oppermann.Fa little_len , 576050c8feSAndre Oppermannif 586050c8feSAndre Oppermann.Fa little_len 596050c8feSAndre Oppermannis 0, if 606050c8feSAndre Oppermann.Fa big_len 616050c8feSAndre Oppermannis 0 or if 626050c8feSAndre Oppermann.Fa little 636050c8feSAndre Oppermannoccurs nowhere in 646050c8feSAndre Oppermann.Fa big , 656050c8feSAndre Oppermann.Dv NULL 666050c8feSAndre Oppermannis returned; 676050c8feSAndre Oppermannotherwise a pointer to the first character of the first occurrence of 686050c8feSAndre Oppermann.Fa little 696050c8feSAndre Oppermannis returned. 706050c8feSAndre Oppermann.Sh SEE ALSO 716050c8feSAndre Oppermann.Xr memchr 3 , 726050c8feSAndre Oppermann.Xr strchr 3 , 736050c8feSAndre Oppermann.Xr strstr 3 746050c8feSAndre Oppermann.Sh CONFORMING TO 756050c8feSAndre Oppermann.Fn memmem 766050c8feSAndre Oppermannis a GNU extension. 776050c8feSAndre Oppermann.Sh HISTORY 786050c8feSAndre OppermannThe 796050c8feSAndre Oppermann.Fn memmem 806050c8feSAndre Oppermannfunction first appeared in 816050c8feSAndre Oppermann.Fx 6.0 . 82ca513774SRuslan Ermilov.Sh AUTHORS 83*8fbf3d50SBaptiste Daroussin.An Pascal Gloor Aq Mt pascal.gloor@spale.com 846050c8feSAndre Oppermann.Sh BUGS 856050c8feSAndre OppermannThis function was broken in Linux libc up to and including version 5.0.9 866050c8feSAndre Oppermannand in GNU libc prior to version 2.1. 87