// rc < 0 on comm failures
// rc == 1 indicates comm success
extern int
proto_session_send_msg(Proto_Session *s, int reset)
{
s->shdr.blen = htonl(s->slen);
// write request
if (net_writen(s->fd, &(s->shdr), sizeof(s->shdr)) != sizeof(s->shdr))
return -1;
if (s->slen) {
if (net_writen(s->fd, s->sbuf, s->slen) != s->slen) {
return -2;
}
}
if (proto_debug()) {
fprintf(stderr, "%p: proto_session_send_msg: SENT:\n", pthread_self());
proto_session_dump(s);
}
// communication was successfull
if (reset) proto_session_reset_send(s);
return 1;
}
void
str_echo(int sockfd)
{
int n;
int len;
char *buf;
while (1) {
//COMPLETED THE MISSING AND IMPORTANT LINE HERE
n = net_readn(sockfd, &len, sizeof(int));
if (n != sizeof(int)) {
fprintf(stderr, "%s: ERROR failed to read len: %d!=%d"
" ... closing connection\n", __func__, n, (int)sizeof(int));
break;
}
//WHAT DOES THE NEXT LINE DO?
len = ntohl(len);
if (len) {
buf = (char *)malloc(len);
n = net_readn(sockfd, buf, len);
if ( n != len ) {
fprintf(stderr, "%s: ERROR failed to read msg: %d!=%d"
" .. closing connection\n" , __func__, n, len);
break;
}
VPRINTF("got: %d '%s'\n", len, buf);
net_writen(sockfd, buf, len);
free(buf);
}
}
close(sockfd);
return;
}
// rc < 0 on comm failures
// rc == 1 indicates comm success
// session passed to us contains header and body information,
// need to send that information to fd
extern int
proto_session_send_msg(Proto_Session *s, int reset){
s->shdr.blen = htonl(s->slen);
if(net_writen(s->fd, &(s->shdr), sizeof(Proto_Msg_Hdr)) < 0)
return -1;
net_writen(s->fd, s->sbuf, s->slen);
if (proto_debug()) {
fprintf(stderr, "%p: proto_session_send_msg: SENT:\n", pthread_self());
proto_session_dump(s);
}
if (reset) proto_session_reset_send(s);
return 1;
}
// rc < 0 on comm failures
// rc == 1 indicates comm success
extern int
proto_session_send_msg(Proto_Session *s, int reset)
{
s->shdr.blen = htonl(s->slen);
// write request
// ADD CODE
net_writen(s->fd, &s->shdr, (int)sizeof(Proto_Msg_Hdr));
if (s->slen>0) {
net_writen(s->fd, &s->sbuf, (int)s->slen);
if (PROTO_PRINT_DUMPS==1) fprintf(stderr, "Sending extra bytes: %d\n", s->slen);
}
if (proto_debug()) {
fprintf(stderr, "%p: proto_session_send_msg: SENT:\n", pthread_self());
proto_session_dump(s);
}
if (PROTO_PRINT_DUMPS==1) fprintf(stderr, "Sent message...\n");
// ////////////
// struct sockaddr_in sinadd;
// socklen_t len = sizeof(sinadd);
// if (getsockname(s->fd, (struct sockaddr *)&sinadd, &len) == -1)
// perror("getsockname");
// else
// printf("port number %d\n", ntohs(sinadd.sin_port));
// char hostname[128];
// gethostname(hostname, sizeof hostname);
// printf("My hostname: %s\n", hostname);
// ////////////
// communication was successfull
if (reset) proto_session_reset_send(s);
return 1;
}
extern int
proto_session_send_msg(Proto_Session *s, int reset) {
//int n;
s->shdr.blen = sizeof (s->sbuf);
s->slen = sizeof (s->shdr);
net_writen(s->fd, &(s->shdr), s->slen);
net_writen(s->fd, &(s->sbuf), s->shdr.blen);
// write request
// ADD CODE
if (proto_debug()) {
fprintf(stderr, "%p: proto_session_send_msg: SENT:\n", pthread_self());
proto_session_dump(s);
}
// communication was successfull
if (reset) proto_session_reset_send(s);
return 1;
}
