远程拷贝程序 (客户端：getfile,服务器端：sendfile) 客户端发送IP地址，源文件文件名，和目标文件，进行文件的拷贝-Remote copy program (client: getfile, server-side: sendfile) to send the client IP address, source file name, and the target file, make copies of documents

atmsap.h - ATM Service Access Point addressing definitions.

debugXML.c : This is a set of routines used for debugging the tree produced by the XML parser.

Pad a count of bytes to the nearest multiple of 4. The X protocol transfers data in 4 byte quantities, so this macro is used to insure the right amount of data being sent.