#include "unp.h" #undef MAXLINE #define MAXLINE 65507 void dg_cli(FILE *fp, int sockfd, const SA *pservaddr, socklen_t servlen) { int size; char sendline[MAXLINE], recvline[MAXLINE + 1]; ssize_t n; size = 70000; Setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size)); Setsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)); Sendto(sockfd, sendline, MAXLINE, 0, pservaddr, servlen); n = Recvfrom(sockfd, recvline, MAXLINE, 0, NULL, NULL); printf("received %d bytes\n", n); }