libpcap的英文意思是 Packet Capture library，即数据包捕获函数库。该库提供的C函数接口可用于需要捕获经过网络接口（只要经过该接口，目标地址不一定为本机）数据包的系统开发上。由 Berkeley大学Lawrence Berkeley National Laboratory研究院的Van Jacobson、Craig Leres和Steven McCanne编写。该函数库支持Linux、Solaris和*BSD系统平台(Libpcap in English means Packet Capture library, that is, the packet capture function library. The C function interface provided by this library can be used for system development that requires capturing packets passing through the network interface (as long as the destination address is not necessarily native). Written by Berkeley University Lawrence Berkeley National Laboratory Institute Van Jacobson, Craig Leres and Steven McCanne. The library supports the Linux, Solaris, and *BSD system platforms)