/*?Nessus?Attack?scripting?Language?
?*
?*?Copyright?（C）?2002?-?2003?Michel?Arboi?and?Renaud?Deraison
?*
?*?This?program?is?free?software;?you?can?redistribute?it?and/or?modify
?*?it?under?the?terms?of?the?GNU?General?Public?License?version?2
?*?as?published?by?the?Free?Software?Foundation
?*
?*?This?program?is?distributed?in?the?hope?that?it?will?be?useful
?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
?*?GNU?General?Public?License?for?more?details.
?*
?*?You?should?have?received?a?copy?of?the?GNU?General?Public?License
?*?along?with?this?program;?if?not?write?to?the?Free?Software
?*?Foundation?Inc.?675?Mass?Ave?Cambridge?MA?02139?USA.
?*
?*?In?addition?as?a?special?exception?Renaud?Deraison?and?Michel?Arboi
?*?give?permission?to?link?the?code?of?this?program?with?any
?*?version?of?the?OpenSSL?library?which?is?distributed?under?a
?*?license?identical?to?that?listed?in?the?included?COPYING.OpenSSL
?*?file?and?distribute?linked?combinations?including?the?two.
?*?You?must?obey?the?GNU?General?Public?License?in?all?respects
?*?for?all?of?the?code?used?other?than?OpenSSL.??If?you?modify
?*?this?file?you?may?extend?this?exception?to?your?version?of?the
?*?file?but?you?are?not?obligated?to?do?so.??If?you?do?not?wish?to
?*?do?so?delete?this?exception?statement?from?your?version.
?*/
#include?
#include?

#include?“capture_packet.h“
#include?“nasl_raw.h“



extern?int?islocalhost（struct?in_addr?*）;




/*
?*?Set?up?the?pcap?filter?and?select?the?correct?interface.
?*
?*?The?filter?will?be?changed?only?if?this?is?necessary
?*?
?*/
?
int?init_capture_device（struct?in_addr?src?struct?in_addr?dst?char?*?filter）

{
?int?ret?=?-1;
?char?*?interface?=?NULL;
?char?*?a_dst?*a_src;
?char?errbuf[PCAP_ERRBUF_SIZE];
?int?free_filter?=?0;
?
?a_src?=?estrdup（inet_ntoa（src））;
?a_dst?=?estrdup（inet_ntoa（dst））;
?
?if（（filter?==?NULL）?||?（filter[0]==‘\0‘）?||?（filter[0]==‘0‘））
?{
??filter?=?emalloc（256）;
??free_filter?=?1;
??if（islocalhost（&src）?==?0）
??	snprintf（filter?256?“ip?and?（src?host?%s?and?dst?host?%s）“
?		??a_src?a_dst）;
		??
?}
?else?{
?	if（islocalhost（&src）?==?0）filter?=?estrdup（filter）;
	else?filter?=?emalloc（1）;
	free_filter?=?1;
?	}
?
?efree（&a_dst）;
?efree（&a_src）;

?if（（interface?=?routethrough（&src?&dst））||
????（interface?=?pcap_lookupdev（errbuf）））???
????ret?=?bpf_open_live（interface?filter）;
?????
?
?if（free_filter?!=?0）efree（&filter）;

?return?ret;???
}

struct?ip?*?capture_next_packet（int?bpf?int?timeout?int?*?sz）
{
??int?len;
??int?dl_len;
??char?*?packet?=?NULL;
??char?*?ret?=?NULL;
??struct?timeval?past?now?then;
??struct?timezone?tz;
?
??if（bpf????return?NULL;
???
??dl_len?=??get_datalink_size（bpf_datalink（bpf））;
??bzero（&past?sizeof（past））;
??bzero（&now?sizeof（now））;
??gettimeofday（&then?&tz）;
??for（;;）
??{
???bcopy（&then?&past?sizeof（then））;
???packet?=?（char*）bpf_next（bpf?&len）;
???if（packet?!=?NULL）
?????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3267??2003-06-06?05:16??libnasl\include\config.h.in

?????文件???????5246??2003-05-22?00:25??libnasl\include\includes.h

?????文件????????575??2003-11-25?03:49??libnasl\include\nasl.h

?????文件???????2110??1999-06-12?21:03??libnasl\include\nasl_icmp.h

?????文件???????1089??2003-02-18?07:39??libnasl\include\nasl_ip.h

?????文件????????308??1999-06-12?21:03??libnasl\include\nasl_raw.h

?????文件???????1179??2001-10-16?01:58??libnasl\include\nasl_tcp.h

?????文件????????569??2001-10-16?01:58??libnasl\include\nasl_udp.h

?????目錄??????????0??2004-03-08?12:52??libnasl\include

?????文件???????3073??2003-11-21?16:45??libnasl\nasl\Makefile

?????文件???????3597??2003-07-18?02:05??libnasl\nasl\capture_packet.c

?????文件???????1572??2003-01-18?23:54??libnasl\nasl\capture_packet.h

?????文件??????41346??2004-01-20?05:38??libnasl\nasl\exec.c

?????文件???????1590??2003-02-23?04:16??libnasl\nasl\exec.h

?????文件???????4298??2003-04-02?19:54??libnasl\nasl\hmacmd5.c

?????文件???????2377??2004-01-20?05:38??libnasl\nasl\hmacmd5.h

?????文件???????3139??2003-01-07?09:39??libnasl\nasl\lfind.c

?????文件???????8053??2003-04-02?19:54??libnasl\nasl\md5.c

?????文件????????870??2003-04-02?18:46??libnasl\nasl\md5.h

?????文件???????6030??2003-07-18?02:05??libnasl\nasl\nasl.c

?????文件??????12255??2004-01-20?05:38??libnasl\nasl\nasl_crypto.c

?????文件????????847??2003-04-02?18:46??libnasl\nasl\nasl_crypto.h

?????文件???????3005??2003-03-24?07:49??libnasl\nasl\nasl_debug.c

?????文件???????1566??2003-02-23?02:20??libnasl\nasl\nasl_debug.h

?????文件???????9268??2004-01-20?05:38??libnasl\nasl\nasl_func.c

?????文件???????1896??2003-07-18?02:05??libnasl\nasl\nasl_func.h

?????文件???????1649??2003-01-18?23:54??libnasl\nasl\nasl_global_ctxt.h

?????文件??????24144??2004-01-20?05:38??libnasl\nasl\nasl_grammar.y

?????文件???????6075??2003-07-18?02:05??libnasl\nasl\nasl_host.c

?????文件???????1868??2003-01-18?23:54??libnasl\nasl\nasl_host.h

............此處省略407個文件信息