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/*
* FOXMP3
* Copyright (c) 2006 acmesystems.it - john@acmesystems.it
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA02111-1307USA
*
* Feedback, Bugs... info@acmesystems.it
*
*/
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/poll.h>
#include <stdarg.h>
#include <fcntl.h>
#include "mp3.h"
#define SOCKET_PATH "/tmp/foxmp3"
typedef struct _MP3_NIX_SOCKET {
fd_set master;
fd_set clients;
int max;
int listener;
} MP3_NIX_SOCKET;
static MP3_NIX_SOCKET mp3_nix_socket;
int mp3_nix_socket_setup(void){
struct sockaddr_un myaddr;
int yes=1;
int len;
FD_ZERO(&mp3_nix_socket.master);
FD_ZERO(&mp3_nix_socket.clients);
if ((mp3_nix_socket.listener = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
perror("socket");
return MP3_ERROR;
}
if (setsockopt(mp3_nix_socket.listener, SOL_SOCKET,
SO_REUSEADDR, &yes, sizeof(int)) == -1) {
perror("setsockopt");
return MP3_ERROR;
}
myaddr.sun_family = AF_UNIX;
strcpy(myaddr.sun_path, SOCKET_PATH);
unlink(myaddr.sun_path);
len = strlen(myaddr.sun_path) + sizeof(myaddr.sun_family);
if (bind(mp3_nix_socket.listener, (struct sockaddr *)&myaddr, len) == -1) {
perror("bind");
return MP3_ERROR;
}
if (listen(mp3_nix_socket.listener, 3) == -1) {
perror("listen");
return MP3_ERROR;
}
FD_SET(mp3_nix_socket.listener, &mp3_nix_socket.master);
mp3_nix_socket.max = mp3_nix_socket.listener;
return MP3_OK;
};
int mp3_nix_socket_handle(void){
struct sockaddr_un remoteaddr;
socklen_t addrlen;
int i;
int newfd;
char buf[1024];
int nbytes;
char buf_out[1024];
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 0;
mp3_nix_socket.clients = mp3_nix_socket.master;
if (select(mp3_nix_socket.max + 1, &mp3_nix_socket.clients,
NULL, NULL, &tv) == -1) {
// sometimes the select is interrupted, because of the alarm signal used by the playtime counter
//perror("error whilst selecting socket");
return MP3_ERROR;
}
for(i = 0; i <= mp3_nix_socket.max; i++) {
if (FD_ISSET(i, &mp3_nix_socket.clients)) {
if (i == mp3_nix_socket.listener) {
addrlen = sizeof(remoteaddr);
if ((newfd = accept(mp3_nix_socket.listener,
(struct sockaddr *)&remoteaddr,
&addrlen)) == -1) {
perror("error whilst accepting socket");
return MP3_ERROR;
} else {
FD_SET(newfd, &mp3_nix_socket.master);
if (newfd > mp3_nix_socket.max) {
mp3_nix_socket.max = newfd;
}
fcntl(newfd, F_SETFL, O_NONBLOCK);
printf("New socket client on %d\n", newfd);
}
} else {
if ((nbytes = recv(i, buf, sizeof(buf), 0)) <= 0) {
if (nbytes == 0) {
printf("selectserver: socket hung up %d\n", i);
close(i);
FD_CLR(i, &mp3_nix_socket.master);
} else {
printf("error whilst receiving socket %d\n", i);
}
} else {
buf[nbytes] = '\0';
printf("Got data : %s\n", buf);
mp3_parser_incoming(buf,buf_out);
if(*buf_out != '\0'){
send(i, buf_out, strlen(buf_out), 0);
}
}
}
}
}
return MP3_OK;
}
void mp3_nix_socket_write(unsigned char *data, ...){
unsigned int i;
unsigned char t[2048];
va_list ap;
// clear possible dead sockets
mp3_nix_socket_handle();
memset(t, 0, 2048);
va_start(ap, data);
vsprintf(t, data, ap);
va_end(ap);
printf("Sending data --> %s\n", t);
for(i = 0; i <= mp3_nix_socket.max; i++) {
if (FD_ISSET(i, &mp3_nix_socket.master)) {
if (i != mp3_nix_socket.listener) {
printf("Sending on socket %d\n", i);
send(i, t, strlen(t), 0);
}
}
}
printf("Finished sending\n");
}
int mp3_nix_socket_cleanup(void){
return MP3_OK;
};
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