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EFAULT The address pointed to by optval is not in a valid part of the process address space. For getsockopt(), this error may also be returned if optlen is not in a valid part of the process address space.// EINVAL optlen invalid in setsockopt(). In some cases this error can also ...
On success, zero is returned. On error, -1 is returned, and errno is set appropriately. 错误返回 ERRORS EBADF The argument sockfdisnot a valid descriptor. EFAULT The address pointedto by optvalisnotin a valid partof the process address space.For getsockopt(), this error may also be return...
SO_DONTROUTE不查找路由int SO_ERROR获得套接字错误int SO_KEEPALIVE保持连接int SO_LINGER 延迟关闭连接struct linger SO_OOBINLINE带外数据放入正常数据流int SO_RCVBUF 接收缓冲区大小int SO_SNDBUF 发送缓冲区大小int SO_RCVLOWAT 接收缓冲区下限int SO_SNDLOWAT 发送缓冲区下限int SO_RCVTIMEO 接收超时struct timev...
sloutput 109 5.3.5 slstart函数 111 5.3.6 SLIP分组丢失 116 5.3.7 SLIP性能考虑 117 5.3.8 slclose函数 117 5.3.9 sltioctl函数 118 5.4 环回接口 119 5.5 小结 121 第6章 IP编址 123 6.1 引言 123 6.1.1 IP地址 123 6.1.2 IP地址的印刷规定 123 6.1.3 主机和路由器 124 6.2 代码介绍 125 ...