MEMMEM(3) |
FreeBSD Library Functions Manual |
MEMMEM(3) |
NAME
memmem —
locate a byte substring in a byte string
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include < string.h>
void *
memmem( const void *big, size_t big_len, const void *little, size_t little_len);
DESCRIPTION
The
memmem() function locates the first occurrence of the byte string
little in the byte string
big.
RETURN VALUES
If
big_len is smaller than
little_len, if
little_len is 0, if
big_len is 0 or if
little occurs nowhere in
big,
NULL is returned; otherwise a pointer to the first character of the first occurrence of
little is returned.
CONFORMING TO
memmem() is a GNU extension.
HISTORY
The
memmem() function first appeared in
FreeBSD 6.0.
AUTHORS
Pascal Gloor <pascal.gloor@spale.com>
BUGS
This function was broken in Linux libc up to and including version 5.0.9 and in GNU libc prior to version 2.1.