java libpcap,Linux下编译安装libpcap

要做Sniffer了，先在Linux下编译一下libpcap

1、编译安装flex

#libpcap 1.1要求flex必须在2.4.6及以上

wget http://prdownloads.sourceforge.net/flex/flex-2.5.35.tar.gz?download

tar -xzvf flex-2.5.35.tar.gz

cd flex-2.5.35

./configure --prefix=/usr

make -j

sudo make install

2、编译安装bison

#libpcap要求同时安装flex赫bison

wget http://ftp.gnu.org/gnu/bison/bison-2.4.tar.gz

tar -xzvf bison-2.4.tar.gz

./configure --prefix=/usr

make -j && make install

3、编译安装libpcap

#下面进入正题，安装libpcap

wget http://www.tcpdump.org/release/libpcap-1.1.1.tar.gz

tar -xzvf libpcap-1.1.1.tar.gz

./configure --prefix=/usr

make -j

make install

4、测试程序

编译参数加入-lpcap

#include

#include

int main(int argc, char *argv[]) {

char errbuf[PCAP_ERRBUF_SIZE];

pcap_if_t* devs;

pcap_if_t* d;

unsigned int i = 0;

//获取全部的dev

if (-1 == pcap_findalldevs(&devs, errbuf)) {

fprintf(stderr, "Could not list device: %s\n", errbuf);

} else {

d = devs;

while (d->next != NULL) {

printf("%d:%s\n", i++, d->name);

d = d->next;

}

}

//释放所有获取的dev

pcap_freealldevs(devs);

return (0);

}