TCPIP详解 卷3：TCP事务协议、HTTP、NNTP和UNIX域协议 (W. 理查德·史蒂文斯) (Z-Library)

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TCP 1 T/TCP 1.1 UDP TCP TCP/IP T/TCP T/TCP T/TCP UDP TCP T/TCP TCP T/TCP - Internet Internet T/TCP T/TCP Internet (DNS) IP 1.2 UDP UDP 1-1 1-1 UDP 2 TCP 1-1 ( 1.9 4.4 ) BSD-Lite [Stevens 1990] 1-2 1. 10-11 errno 2. 12-15 6 cliserv.h UDP socket err_sys vsprintf Unix memset UDP [Stevens 1992] B.2 Internet IP IP (a r g v[ 1 ] ) (U D P _ S E R V _ P O R T) gethostbyname 3. 16-19 UDP (R E P L Y) 4. 20-23 cliserv.h #define getservbyname recvfrom ( ( ) sendto (R E Q U E S T ) ( ) recvfrom UDP ) 1 clise…