int wr_socket ( int s, char *b, size_t l ) {
int res;
pthread_mutex_lock(&socket_mutex);
w_socket ( s, b );
res = r_socket ( s, b, l );
pthread_mutex_unlock(&socket_mutex);
return res;
}
int RPICreateSocket()
{
int socket = r_socket(0);
if( socket <= 0 )
{
printf("\tError Creating Socket\n");
exit(0);
}
return socket;
}
int main(int argc, const char* argv[]) {
struct sockaddr_in user1Addr, user2Addr;
int sock, i, slen = sizeof(user2Addr);
char* server = "127.0.0.1"; /* change this to use a different server */
int bufSize = BRP_MTU;
char* buf;
int retVal;
/*
* get the optional arguments according to the number of arguments
* */
if(argc >= 2){
server = argv[1];
}
/* create a socket */
if ((sock = r_socket(AF_INET, SOCK_BRP, 0)) == -1)
printf("socket created\n");
/* to bind the socket to all local addresses and described protocol */
memset((char *) &user1Addr, 0, sizeof(user1Addr));
user1Addr.sin_family = AF_INET;
user1Addr.sin_addr.s_addr = htonl(INADDR_ANY);
user1Addr.sin_port = user1portNum;
/* bind the socket with given port and address */
if (r_bind(sock, (struct sockaddr *) &user1Addr, sizeof(user1Addr)) < 0) {
perror("bind failed");
return 0;
}
/* now define user2Addr, the address to whom we want to send messages */
/* For convenience, the host address is expressed as a numeric IP address */
/* that we will convert to a binary format via inet_aton */
memset((char *) &user2Addr, 0, sizeof(user2Addr));
user2Addr.sin_family = AF_INET;
user2Addr.sin_port = htons(user2portNum);
if (inet_aton(server, &user2Addr.sin_addr) == 0) {
fprintf(stderr, "inet_aton() failed\n");
exit(1);
}
/* set the buf*/
buf = (char*) malloc(bufSize);
memset(buf, 0, bufSize);
/* go into infinite loop to and get the bytes to send */
while (1) {
printf("enter the message you wish to send:\n");
fgets(buf, bufSize - 1, stdin);
/*fragment each byte in the message and send it using BRP socket*/
for (i = 0; i < strlen(buf); i++) {
if (r_sendto(sock, &buf[i], 1, 0, (struct sockaddr *) &user2Addr,
slen) == -1)
perror("sendto");
}
memset(buf, 0, bufSize);
}
r_close(sock);
return 0;
}