The Common Gateway Interface is a way to create dynamic web pages. It defines rules for interaction between a program and the web server while the server talks to the client. cgilib provides a C library CGI routines: cgiDebug, cgiFree, cgiFreeList, cgiGetCookie, cgiGetCookies, cgiGetValue, cgiGetVariables, cgiHeader, cgiInit, cgiRedirect, cgiSetHeader, cgiSetType