recvfrom

recvfrom

1

There are four system calls that can be used to receive data from a connection : read , readv , recvfrom , and recvmsg .

有四个系统调用可以用于从连接接收数据：read、readv、recvfrom和recvmsg。
2

While recv ( a library function used by the process ), recvfrom , and recvmsg operate only on socket descriptor , read and readv can operate on any kind of descriptor .

尽管recv（进程使用的库函数）、recvfrom和recvmsg仅可以对套接字描述符操作，但read和readv可以对任何种类的描述符操作。