//check.c
#include?
#include?
#include?
#include?
#include?
#include?
#include?

#define?UDP_CHECK_FLAG?1
#define?TCP_CHECK_FLAG?2?

static?unsigned?short?inline?checksum（const?unsigned?short?*bufferint?size）?{?
????unsigned?long?cksum?=?0;?
????if（size?<=0）?{?
????????printf（“size?is?wrong?in?checksum（）\n“）;?
????????exit（0）;?
????}?
????while（size>1）?{?
????????cksum?+=?*buffer++;?
????????size??-=?sizeof（unsigned?short）;?
????}?
????if（size）?{
		cksum?+=?*（unsigned?char?*）buffer;
	}
	
	cksum?=?（cksum?>>?16）?+?（cksum?&?0xffff）;
	cksum?+=?（cksum?>>?16）;		
	return（（unsigned?short?）（~cksum））;
}

unsigned?int?inline?p_checksum（unsigned?long?saddr?unsigned?long?daddr?const?unsigned?short?*buffer?int?size?int?flag）?{
?	unsigned?long?sum?=?0;
	char?*buf?=?（char?*）malloc（sizeof（struct?pseudo_header）+size）;
????struct?pseudo_header?*pseh;
	pseh?=?（struct?pseudo_header?*）buf;
	
	pseh->saddr?=?saddr;
	pseh->daddr?=?daddr;
	pseh->mbz?=?0;
	pseh->proto?=?flag==TCP_CHECK_FLAG?IPPROTO_TCP:IPPROTO_UDP;
????
	pseh->header_len?=?htons（flag==TCP_CHECK_FLAG?sizeof（struct?tcphdr）:sizeof（struct?udphdr））;
	memcpy（buf+sizeof（struct?pseudo_header）buffersize）;

	sum?=?checksum（（unsigned?short*）bufsizeof（struct?pseudo_header）+size）;
	free（buf）;
	return?sum;
}?

unsigned?int?inline?tcp_checksum（unsigned?long?saddr?unsigned?long?daddr?const?unsigned?short?*buffer?int?size）?{
????return?p_checksum（saddr?daddr?buffer?size?TCP_CHECK_FLAG）;
}

unsigned?int?inline?udp_checksum（unsigned?long?saddr?unsigned?long?daddr?const?unsigned?short?*buffer?int?size）?{
????return?p_checksum（saddr?daddr?buffer?size?UDP_CHECK_FLAG）;
}


unsigned?int?inline?ip_checksum（const?unsigned?short?*buffer?int?size）{
	return（checksum（buffer?size））;
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1046??2015-12-31?14:30??Readme.txt

????I.A....?????46756??2015-12-31?14:28??myattack\attack

????I.A....???????513??2015-12-30?17:41??myattack\include\checksum.h

????I.A....???????633??2015-12-30?18:03??myattack\include\pool.h

????I.A....???????112??2015-12-30?17:20??myattack\include\pth.h

????I.A....???????204??2015-12-29?17:08??myattack\include\rand.h

????I.A....????????87??2015-12-29?17:06??myattack\include\sig.h

????I.A....??????1665??2015-12-30?18:04??myattack\makefile

????I.A....??????1833??2015-12-30?17:44??myattack\src\checksum.c

????I.A....??????6915??2015-12-31?14:28??myattack\src\main.c

????I.A....??????6702??2015-12-30?19:16??myattack\src\pool.c

????I.A....???????782??2015-12-31?14:22??myattack\src\pth.c

????I.A....???????326??2015-12-29?17:30??myattack\src\rand.c

????I.A....???????190??2015-12-29?17:33??myattack\src\sig.c

????I..D...?????????0??2015-12-31?14:28??myattack\include

????I..D...?????????0??2015-12-31?14:29??myattack\src

????I..D...?????????0??2015-12-31?14:28??myattack

-----------?---------??----------?-----??----

????????????????67764????????????????????17