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hping2

    1: /* 
    2:  * $smu-mark$ 
    3:  * $name: memstr.c$ 
    4:  * $author: Salvatore Sanfilippo <antirez@invece.org>$ 
    5:  * $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$ 
    6:  * $license: This software is under GPL version 2 of license$ 
    7:  * $date: Fri Nov  5 11:55:48 MET 1999$ 
    8:  * $rev: 4$ 
    9:  */ 
   10: 
   11: #include <string.h>
   12: #include <stdlib.h> /* NULL macro */
   13: 
   14: char *memstr(char *haystack, char *needle, int size)
   15: {
   16: 	char *p;
   17: 	char needlesize = strlen(needle);
   18: 
   19: 	for (p = haystack; p <= (haystack-needlesize+size); p++)
   20: 	{
   21: 		if (memcmp(p, needle, needlesize) == 0)
   22: 			return p; /* found */
   23: 	}
   24: 	return NULL;
   25: }