int main(int argc, char* argv[]) {
rudp_socket_t rsock;
int port;
int c;
/*
* Parse and collect arguments
*/
opterr = 0;
while ((c = getopt(argc, argv, "d")) != -1) {
if (c == 'd') {
debug = 1;
} else
usage();
}
if (argc - optind != 1) {
usage();
}
port = atoi(argv[optind]);
if (port <= 0) {
fprintf(stderr, "Bad destination port: %s\n", argv[optind]);
exit(1);
}
if (debug) {
printf("RUDP receiver waiting on port %i.\n", port);
}
/*
* Create RUDP listener socket
*/
if ((rsock = rudp_socket(port)) == NULL) {
fprintf(stderr, "vs_recv: rudp_socket() failed\n");
exit(1);
}
/*
* Register receiver callback function
*/
rudp_recvfrom_handler(rsock, rudp_receiver);
/*
* Register event handler callback function
*/
rudp_event_handler(rsock, eventhandler);
/*
* Hand over control to event manager
*/
eventloop(0);
return (0);
}
void send_file(char *filename) {
struct vsftp vs;
int vslen;
char *filename1;
int namelen;
int file = 0;
int p;
rudp_socket_t rsock;
if ((file = open(filename, O_RDONLY)) < 0) {
perror("vs_sender: open");
exit(-1);
}
rsock = rudp_socket(0);
if (rsock == NULL) {
fprintf(stderr, "vs_send: rudp_socket() failed\n");
exit(1);
}
rudp_event_handler(rsock, eventhandler);
vs.vs_type = htonl(VS_TYPE_BEGIN);
/* strip of any leading path name */
filename1 = filename;
if (strrchr(filename1, '/'))
filename1 = strrchr(filename1, '/') + 1;
/* Copy file name into VS data */
namelen = strlen(filename1) < VS_FILENAMELENGTH ? strlen(filename1) : VS_FILENAMELENGTH;
strncpy(vs.vs_info.vs_filename, filename1, namelen);
vslen = sizeof(vs.vs_type) + namelen;
for (p = 0; p < npeers; p++) {
if (debug) {
fprintf(stderr, "vs_send: send BEGIN \"%s\" (%d bytes) to %s:%d\n",
filename, vslen,
inet_ntoa(peers[p].sin_addr), ntohs(peers[p].sin_port));
}
if (rudp_sendto(rsock, (char *) &vs, vslen, &peers[p]) < 0) {
fprintf(stderr,"rudp_sender: send failure\n");
rudp_close(rsock);
return;
}
}
event_fd(file, filesender, rsock, "filesender");
}