int client_recv_msg_static_socket(int fd, ldcs_message_t *msg, ldcs_read_block_t block) {
char help[41];
int rc=0;
int n, connfd;
if ((fd<0) || (fd>MAX_FD) ) _error("wrong fd");
connfd=ldcs_socket_fdlist[fd].fd;
n = _ldcs_read_socket(connfd,&msg->header,sizeof(msg->header), block);
if (n == 0) return(rc);
if (n < 0) _error("ERROR reading header from socket");
if(msg->header.len>0) {
msg->data = (char *) spindle_malloc(msg->header.len);
if (!msg) _error("could not allocate memory for message data");
n = _ldcs_read_socket(connfd,msg->data,msg->header.len, LDCS_READ_BLOCK);
if (n == 0) return(rc);
if (n < 0) _error("ERROR reading message data from socket");
if (n != msg->header.len) _error("received different number of bytes for message data");
} else {
msg->data = NULL;
}
bzero(help,41);if(msg->data) strncpy(help,msg->data,40);
debug_printf3("received message of type: %s len=%d data=%s ...\n",
_message_type_to_str(msg->header.type),
msg->header.len,help );
return(0);
}
ldcs_message_t * ldcs_recv_msg_pipe(int fd, ldcs_read_block_t block ) {
ldcs_message_t *msg;
int n;
if ((fd<0) || (fd>fdlist_pipe_size) ) _error("wrong fd");
msg = (ldcs_message_t *) malloc(sizeof(ldcs_message_t));
if (!msg) _error("could not allocate memory for message");
n = _ldcs_read_pipe(fdlist_pipe[fd].in_fd,&msg->header,sizeof(msg->header), block);
if (n == 0) {
free(msg);
return(NULL);
}
if (n < 0) _error("ERROR reading header from connection");
if(msg->header.len>0) {
msg->data = (char *) malloc(msg->header.len);
if (!msg) _error("could not allocate memory for message data");
n = _ldcs_read_pipe(fdlist_pipe[fd].in_fd,msg->data,msg->header.len, LDCS_READ_BLOCK);
if (n < 0) _error("ERROR reading message data from socket");
if (n != msg->header.len) _error("received different number of bytes for message data");
} else {
msg->data = NULL;
}
debug_printf3("received message of type: %s len=%d data=%s ...\n",
_message_type_to_str(msg->header.type),
msg->header.len, msg->data );
return(msg);
}
int ldcs_recv_msg_static_pipe(int fd, ldcs_message_t *msg, ldcs_read_block_t block) {
int n;
int rc=0;
msg->header.type=LDCS_MSG_UNKNOWN;
msg->header.len=0;
if ((fd<0) || (fd>fdlist_pipe_size) ) _error("wrong fd");
n = _ldcs_read_pipe(fdlist_pipe[fd].in_fd,&msg->header,sizeof(msg->header), block);
if (n == 0) {
/* Disconnect. Return an artificial client end message */
debug_printf2("Client disconnected. Returning END message\n");
msg->header.type = LDCS_MSG_END;
msg->header.len = 0;
msg->data = NULL;
return(rc);
}
if (n < 0) _error("ERROR reading header from connection");
if(msg->header.len>0) {
n = _ldcs_read_pipe(fdlist_pipe[fd].in_fd,msg->data,msg->header.len, LDCS_READ_BLOCK);
if (n == 0)
return(rc);
if (n < 0) {
int error = errno;
err_printf("Error during read of pipe: %s (%d)\n", strerror(error), error);
return -1;
}
if (n != msg->header.len) {
int error = errno;
err_printf("Partial read on pipe. Got %u / %u: %s (%d)\n",
(unsigned) n, (unsigned) msg->header.len,
strerror(error), error);
return -1;
}
} else {
*msg->data = '\0';
}
debug_printf3("received message of type: %s len=%d data=%s ...\n",
_message_type_to_str(msg->header.type),
msg->header.len, msg->data );
return(rc);
}
/* ************************************************************** */
int ldcs_send_msg_pipe(int fd, ldcs_message_t * msg) {
int n;
if ((fd<0) || (fd>fdlist_pipe_size) ) _error("wrong fd");
debug_printf3("sending message of type: %s len=%d data=%s ...\n",
_message_type_to_str(msg->header.type),
msg->header.len,msg->data );
n = _ldcs_write_pipe(fdlist_pipe[fd].out_fd,&msg->header,sizeof(msg->header));
if (n < 0) _error("ERROR writing header to pipe");
if(msg->header.len>0) {
n = _ldcs_write_pipe(fdlist_pipe[fd].out_fd,(void *) msg->data,msg->header.len);
if (n < 0) _error("ERROR writing data to pipe");
if (n != msg->header.len) _error("sent different number of bytes for message data");
}
return(0);
}
int client_send_msg_socket(int fd, ldcs_message_t * msg) {
char help[41];
int n, connfd;
if ((fd<0) || (fd>MAX_FD) ) _error("wrong fd");
connfd=ldcs_socket_fdlist[fd].fd;
bzero(help,41);if(msg->data) strncpy(help,msg->data,40);
debug_printf3("sending message of type: %s len=%d data=%s ...\n",
_message_type_to_str(msg->header.type),
msg->header.len,help );
n = _ldcs_write_socket(connfd,&msg->header,sizeof(msg->header));
if (n < 0) _error("ERROR writing header to socket");
if(msg->header.len>0) {
n = _ldcs_write_socket(connfd,(void *) msg->data,msg->header.len);
if (n < 0) _error("ERROR writing data to socket");
}
return(0);
}
