#include "unp.h" #define MAXN 16384 /* max # bytes client can request */ void web_child(int sockfd) { int ntowrite; ssize_t nread; char line[MAXLINE], result[MAXN]; for ( ; ; ) { if ( (nread = Readline(sockfd, line, MAXLINE)) == 0) return; /* connection closed by other end */ /* 4line from client specifies #bytes to write back */ ntowrite = atol(line); if ((ntowrite <= 0) || (ntowrite > MAXN)) err_quit("client request for %d bytes", ntowrite); Writen(sockfd, result, ntowrite); } }