strnstr(9) centos man page | unix.com

STRNSTR(9)						     Basic C Library Functions							STRNSTR(9)

NAME
       strnstr - Find the first substring in a length-limited string

SYNOPSIS
       char * strnstr(const char * s1, const char * s2, size_t len);

ARGUMENTS
       s1
	   The string to be searched

       s2
	   The string to search for

       len
	   the maximum number of characters to search

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014								STRNSTR(9)