1. 在tcpdump网站(
http://www.tcpdump.org)下载libpcap的latest release.
2. 解压之后,在软件目录下执行./configure
3. 执行 make
4. 执行 make install
此时,在/usr/local/lib目录下会生成libpcap的动态链接库,如:libpcap.dylib
5. 执行export DYLD_LIBRARY_PATH=/usr/local/lib 将此目录加入动态链接库的CLASSPATH
6. 编写测试代码测试是否可用:
vim device.c
//device.c
# include <stdio.h >
# include <pcap /pcap.h >
int main( int argc, char *argv[]) {
char *dev,errbuf[PCAP_ERRBUF_SIZE];
dev =pcap_lookupdev(errbuf);
if(dev ==NULL) {
printf( "couldn't find default device: %s\n",errbuf);
return( 2);
}
printf( "Device: %s\n",dev);
return( 0);
}
# include <stdio.h >
# include <pcap /pcap.h >
int main( int argc, char *argv[]) {
char *dev,errbuf[PCAP_ERRBUF_SIZE];
dev =pcap_lookupdev(errbuf);
if(dev ==NULL) {
printf( "couldn't find default device: %s\n",errbuf);
return( 2);
}
printf( "Device: %s\n",dev);
return( 0);
}
7. 执行编译指令:
gcc -o device device.c -l pcap
8. 测试例程:
sudo ./device
如果显示:Device: en0
说明测试成功。
注意:第5步环境变量的设置在linux下应使用ldconfig工具
注意:第8步务必用sudo命令去执行例程,否则会提示:no suitable device found.
备忘:
1. xcode提供的pcap说明文档:
https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man3/pcap.3pcap.html
2. DYLD_LIBRARY_PATH环境变量的说明文档参见:
3. install_name_tool工具用来修改dylib安装名称,参见:
参考文档:http://blog.csdn.net/zhangzhenhu/article/details/5710572