patch from Steven Richman: adds support for streaming http transport to xmms plugin

2025-12-16 18:54:26 +00:00 · 2004-10-07 00:23:51 +00:00
parent 076adb0334
commit c99aa82edf
8 changed files with 1553 additions and 64 deletions
--- a/src/plugin_xmms/http.c
+++ b/src/plugin_xmms/http.c
@@ -0,0 +1,887 @@
+/*  XMMS - Cross-platform multimedia player
+ *  Copyright (C) 1998-2000  Peter Alm, Mikael Alm, Olle Hallnas, Thomas Nilsson and 4Front Technologies
+ *
+ *  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, MA 02111-1307, USA.
+ */
+/* modified for FLAC support by Steven Richman (2003) */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <glib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <pthread.h>
+
+#include <xmms/util.h>
+#include <xmms/plugin.h>
+
+#include "configure.h"
+#include "plugin_common/locale_hack.h"
+#include "FLAC/format.h"
+#include "plugin.h"
+
+#define min(x,y) ((x)<(y)?(x):(y))
+#define min3(x,y,z) (min(x,y)<(z)?min(x,y):(z))
+#define min4(x,y,z,w) (min3(x,y,z)<(w)?min3(x,y,z):(w))
+
+static gchar *icy_name = NULL;
+static gint icy_metaint = 0;
+
+extern InputPlugin flac_ip;
+
+#undef DEBUG_UDP
+
+/* Static udp channel functions */
+static int udp_establish_listener (gint *sock);
+static int udp_check_for_data(gint sock);
+
+static char *flac_http_get_title(char *url);
+
+static gboolean prebuffering, going, eof = FALSE;
+static gint sock, rd_index, wr_index, buffer_length, prebuffer_length;
+static guint64 buffer_read = 0;
+static gchar *buffer;
+static guint64 offset;
+static pthread_t thread;
+static GtkWidget *error_dialog = NULL;
+
+static FILE *output_file = NULL;
+
+#define BASE64_LENGTH(len) (4 * (((len) + 2) / 3))
+
+/* Encode the string S of length LENGTH to base64 format and place it
+   to STORE.  STORE will be 0-terminated, and must point to a writable
+   buffer of at least 1+BASE64_LENGTH(length) bytes.  */
+static void base64_encode (const gchar *s, gchar *store, gint length)
+{
+	/* Conversion table.  */
+	static gchar tbl[64] = {
+		'A','B','C','D','E','F','G','H',
+		'I','J','K','L','M','N','O','P',
+		'Q','R','S','T','U','V','W','X',
+		'Y','Z','a','b','c','d','e','f',
+		'g','h','i','j','k','l','m','n',
+		'o','p','q','r','s','t','u','v',
+		'w','x','y','z','0','1','2','3',
+		'4','5','6','7','8','9','+','/'
+	};
+	gint i;
+	guchar *p = (guchar *)store;
+
+	/* Transform the 3x8 bits to 4x6 bits, as required by base64.  */
+	for (i = 0; i < length; i += 3)
+	{
+		*p++ = tbl[s[0] >> 2];
+		*p++ = tbl[((s[0] & 3) << 4) + (s[1] >> 4)];
+		*p++ = tbl[((s[1] & 0xf) << 2) + (s[2] >> 6)];
+		*p++ = tbl[s[2] & 0x3f];
+		s += 3;
+	}
+	/* Pad the result if necessary...  */
+	if (i == length + 1)
+		*(p - 1) = '=';
+	else if (i == length + 2)
+		*(p - 1) = *(p - 2) = '=';
+	/* ...and zero-terminate it.  */
+	*p = '\0';
+}
+
+/* Create the authentication header contents for the `Basic' scheme.
+   This is done by encoding the string `USER:PASS' in base64 and
+   prepending `HEADER: Basic ' to it.  */
+static gchar *basic_authentication_encode (const gchar *user, const gchar *passwd, const gchar *header)
+{
+	gchar *t1, *t2, *res;
+	gint len1 = strlen (user) + 1 + strlen (passwd);
+	gint len2 = BASE64_LENGTH (len1);
+
+	t1 = g_strdup_printf("%s:%s", user, passwd);
+	t2 = g_malloc0(len2 + 1);
+	base64_encode (t1, t2, len1);
+	res = g_strdup_printf("%s: Basic %s\r\n", header, t2);
+	g_free(t2);
+	g_free(t1);
+	
+	return res;
+}
+
+static void parse_url(const gchar * url, gchar ** user, gchar ** pass, gchar ** host, int *port, gchar ** filename)
+{
+	gchar *h, *p, *pt, *f, *temp, *ptr;
+
+	temp = g_strdup(url);
+	ptr = temp;
+
+	if (!strncasecmp("http://", ptr, 7))
+		ptr += 7;
+	h = strchr(ptr, '@');
+	f = strchr(ptr, '/');
+	if (h != NULL && (!f || h < f))
+	{
+		*h = '\0';
+		p = strchr(ptr, ':');
+		if (p != NULL && p < h)
+		{
+			*p = '\0';
+			p++;
+			*pass = g_strdup(p);
+		}
+		else
+			*pass = NULL;
+		*user = g_strdup(ptr);
+		h++;
+		ptr = h;
+	}
+	else
+	{
+		*user = NULL;
+		*pass = NULL;
+		h = ptr;
+	}
+	pt = strchr(ptr, ':');
+	if (pt != NULL && (f == NULL || pt < f))
+	{
+		*pt = '\0';
+		*port = atoi(pt + 1);
+	}
+	else
+	{
+		if (f)
+			*f = '\0';
+		*port = 80;
+	}
+	*host = g_strdup(h);
+	
+	if (f)
+		*filename = g_strdup(f + 1);
+	else
+		*filename = NULL;
+	g_free(temp);
+}
+
+void flac_http_close(void)
+{
+	going = FALSE;
+
+	pthread_join(thread, NULL);
+	g_free(icy_name);
+	icy_name = NULL;
+}
+
+
+static gint http_used(void)
+{
+	if (wr_index >= rd_index)
+		return wr_index - rd_index;
+	return buffer_length - (rd_index - wr_index);
+}
+
+static gint http_free(void)
+{
+	if (rd_index > wr_index)
+		return (rd_index - wr_index) - 1;
+	return (buffer_length - (wr_index - rd_index)) - 1;
+}
+
+static void http_wait_for_data(gint bytes)
+{
+	while ((prebuffering || http_used() < bytes) && !eof && going)
+		xmms_usleep(10000);
+}
+
+static void show_error_message(gchar *error)
+{
+	if(!error_dialog)
+	{
+		GDK_THREADS_ENTER();
+		error_dialog = xmms_show_message(_("Error"), error, _("Ok"), FALSE,
+						 NULL, NULL);
+		gtk_signal_connect(GTK_OBJECT(error_dialog),
+				   "destroy",
+				   GTK_SIGNAL_FUNC(gtk_widget_destroyed),
+				   &error_dialog);
+		GDK_THREADS_LEAVE();
+	}
+}
+
+int flac_http_read(gpointer data, gint length)
+{
+	gint len, cnt, off = 0, meta_len, meta_off = 0, i;
+	gchar *meta_data, **tags, *temp, *title;
+	if (length > buffer_length) {
+		length = buffer_length;
+	}
+
+	http_wait_for_data(length);
+
+	if (!going)
+		return 0;
+	len = min(http_used(), length);
+
+	while (len && http_used())
+	{
+		if ((flac_cfg.stream.cast_title_streaming) && (icy_metaint > 0) && (buffer_read % icy_metaint) == 0 && (buffer_read > 0))
+		{
+			meta_len = *((guchar *) buffer + rd_index) * 16;
+			rd_index = (rd_index + 1) % buffer_length;
+			if (meta_len > 0)
+			{
+				http_wait_for_data(meta_len);
+				meta_data = g_malloc0(meta_len);
+				if (http_used() >= meta_len)
+				{
+					while (meta_len)
+					{
+						cnt = min(meta_len, buffer_length - rd_index);
+						memcpy(meta_data + meta_off, buffer + rd_index, cnt);
+						rd_index = (rd_index + cnt) % buffer_length;
+						meta_len -= cnt;
+						meta_off += cnt;
+					}
+					tags = g_strsplit(meta_data, "';", 0);
+
+					for (i = 0; tags[i]; i++)
+					{
+						if (!strncasecmp(tags[i], "StreamTitle=", 12))
+						{
+							temp = g_strdup(tags[i] + 13);
+							title = g_strdup_printf("%s (%s)", temp, icy_name);
+							set_track_info(title, -1);
+							g_free(title);
+							g_free(temp);
+						}
+
+					}
+					g_strfreev(tags);
+
+				}
+				g_free(meta_data);
+			}
+			if (!http_used())
+				http_wait_for_data(length - off);
+			cnt = min3(len, buffer_length - rd_index, http_used());
+		}
+		else if ((icy_metaint > 0) && (flac_cfg.stream.cast_title_streaming))
+			cnt = min4(len, buffer_length - rd_index, http_used(), icy_metaint - (gint) (buffer_read % icy_metaint));
+		else
+			cnt = min3(len, buffer_length - rd_index, http_used());
+		if (output_file)
+			fwrite(buffer + rd_index, 1, cnt, output_file);
+
+		memcpy((gchar *)data + off, buffer + rd_index, cnt);
+		rd_index = (rd_index + cnt) % buffer_length;
+		buffer_read += cnt;
+		len -= cnt;
+		off += cnt;
+	}
+	if (!off) {
+		fprintf(stderr, "returning zero\n");
+	}
+	return off;
+}
+
+static gboolean http_check_for_data(void)
+{
+
+	fd_set set;
+	struct timeval tv;
+	gint ret;
+
+	tv.tv_sec = 0;
+	tv.tv_usec = 20000;
+	FD_ZERO(&set);
+	FD_SET(sock, &set);
+	ret = select(sock + 1, &set, NULL, NULL, &tv);
+	if (ret > 0)
+		return TRUE;
+	return FALSE;
+}
+
+gint flac_http_read_line(gchar * buf, gint size)
+{
+	gint i = 0;
+
+	while (going && i < size - 1)
+	{
+		if (http_check_for_data())
+		{
+			if (read(sock, buf + i, 1) <= 0)
+				return -1;
+			if (buf[i] == '\n')
+				break;
+			if (buf[i] != '\r')
+				i++;
+		}
+	}
+	if (!going)
+		return -1;
+	buf[i] = '\0';
+	return i;
+}
+
+/* returns the file descriptor of the socket, or -1 on error */
+static int http_connect (gchar *url_, gboolean head, guint64 offset)
+{
+	gchar line[1024], *user, *pass, *host, *filename,
+	     *status, *url, *temp, *file;
+	gchar *chost;
+	gint cnt, error, err_len, port, cport;
+	gboolean redirect;
+	int udp_sock = 0;
+	fd_set set;
+	struct hostent *hp;
+	struct sockaddr_in address;
+	struct timeval tv;
+
+	url = g_strdup (url_);
+
+	do
+	{
+		redirect=FALSE;
+	
+		g_strstrip(url);
+
+		parse_url(url, &user, &pass, &host, &port, &filename);
+
+		if ((!filename || !*filename) && url[strlen(url) - 1] != '/')
+			temp = g_strconcat(url, "/", NULL);
+		else
+			temp = g_strdup(url);
+		g_free(url);
+		url = temp;
+
+		chost = flac_cfg.stream.use_proxy ? flac_cfg.stream.proxy_host : host;
+		cport = flac_cfg.stream.use_proxy ? flac_cfg.stream.proxy_port : port;
+
+		sock = socket(AF_INET, SOCK_STREAM, 0);
+		fcntl(sock, F_SETFL, O_NONBLOCK);
+		address.sin_family = AF_INET;
+
+		status = g_strdup_printf(_("LOOKING UP %s"), chost);
+		flac_ip.set_info_text(status);
+		g_free(status);
+
+		if (!(hp = gethostbyname(chost)))
+		{
+			status = g_strdup_printf(_("Couldn't look up host %s"), chost);
+			show_error_message(status);
+			g_free(status);
+
+			flac_ip.set_info_text(NULL);
+			eof = TRUE;
+		}
+
+		if (!eof)
+		{
+			memcpy(&address.sin_addr.s_addr, *(hp->h_addr_list), sizeof (address.sin_addr.s_addr));
+			address.sin_port = (gint) g_htons(cport);
+
+			status = g_strdup_printf(_("CONNECTING TO %s:%d"), chost, cport);
+			flac_ip.set_info_text(status);
+			g_free(status);
+			if (connect(sock, (struct sockaddr *) &address, sizeof (struct sockaddr_in)) == -1)
+			{
+				if (errno != EINPROGRESS)
+				{
+					status = g_strdup_printf(_("Couldn't connect to host %s"), chost);
+					show_error_message(status);
+					g_free(status);
+
+					flac_ip.set_info_text(NULL);
+					eof = TRUE;
+				}
+			}
+			while (going)
+			{
+				tv.tv_sec = 0;
+				tv.tv_usec = 10000;
+				FD_ZERO(&set);
+				FD_SET(sock, &set);
+				if (select(sock + 1, NULL, &set, NULL, &tv) > 0)
+				{
+					err_len = sizeof (error);
+					getsockopt(sock, SOL_SOCKET, SO_ERROR, &error, &err_len);
+					if (error)
+					{
+						status = g_strdup_printf(_("Couldn't connect to host %s"),
+									 chost);
+						show_error_message(status);
+						g_free(status);
+
+						flac_ip.set_info_text(NULL);
+						eof = TRUE;
+						
+					}
+					break;
+				}
+			}
+			if (!eof)
+			{
+				gchar *auth = NULL, *proxy_auth = NULL;
+				gchar udpspace[30];
+				int udp_port;
+
+				if (flac_cfg.stream.use_udp_channel)
+				{
+					udp_port = udp_establish_listener (&udp_sock);
+					if (udp_port > 0) 
+						sprintf (udpspace, "x-audiocast-udpport: %d\r\n", udp_port);
+					else
+						udp_sock = 0;
+				}
+					
+				if(user && pass)
+					auth = basic_authentication_encode(user, pass, "Authorization");
+
+				if (flac_cfg.stream.use_proxy)
+				{
+					file = g_strdup(url);
+					if(flac_cfg.stream.proxy_use_auth && flac_cfg.stream.proxy_user && flac_cfg.stream.proxy_pass)
+					{
+						proxy_auth = basic_authentication_encode(flac_cfg.stream.proxy_user,
+											 flac_cfg.stream.proxy_pass,
+											 "Proxy-Authorization");
+					}
+				}
+				else
+					file = g_strconcat("/", filename, NULL);
+
+				temp = g_strdup_printf("GET %s HTTP/1.0\r\n"
+						       "Host: %s\r\n"
+						       "User-Agent: %s/%s\r\n"
+						       "%s%s%s%s",
+						       file, host, "Reference FLAC Player", FLAC__VERSION_STRING, 
+						       proxy_auth ? proxy_auth : "", auth ? auth : "",
+						       flac_cfg.stream.cast_title_streaming ?  "Icy-MetaData:1\r\n" : "",
+						       flac_cfg.stream.use_udp_channel ? udpspace : "");
+				if (offset && !head) {
+					gchar *temp_dead = temp;
+					temp = g_strconcat ("%sRange: %ll-\r\n", temp, offset);
+					fprintf (stderr, "%s", temp);
+					g_free (temp_dead);
+				}
+				
+				g_free(file);
+				if(proxy_auth)
+					g_free(proxy_auth);
+				if(auth)
+					g_free(auth);
+				write(sock, temp, strlen(temp));
+				write(sock, "\r\n", 2);
+				g_free(temp);
+				flac_ip.set_info_text(_("CONNECTED: WAITING FOR REPLY"));
+				while (going && !eof)
+				  {
+					if (http_check_for_data())
+					{
+						if (flac_http_read_line(line, 1024))
+						{
+							status = strchr(line, ' ');
+							if (status)
+							{
+								if (status[1] == '2')
+									break;
+								else if(status[1] == '3' && status[2] == '0' && status[3] == '2')
+								{
+									while(going)
+									{
+										if(http_check_for_data())
+										{
+											if((cnt = flac_http_read_line(line, 1024)) != -1)
+											{
+												if(!cnt)
+													break;
+												if(!strncmp(line, "Location:", 9))
+												{
+													g_free(url);
+													url = g_strdup(line+10);
+												}
+											}
+											else
+											{
+												eof=TRUE;
+												flac_ip.set_info_text(NULL);
+												break;
+											}
+										}
+									}			
+									redirect=TRUE;
+									break;
+								}
+								else
+								{
+									status = g_strdup_printf(_("Couldn't connect to host %s\nServer reported: %s"), chost, status);
+									show_error_message(status);
+									g_free(status);
+									break;
+								}
+							}
+						}
+						else
+						{
+							eof = TRUE;
+							flac_ip.set_info_text(NULL);
+						}
+					}
+				}
+
+				while (going && !redirect)
+				{
+					if (http_check_for_data())
+					{
+						if ((cnt = flac_http_read_line(line, 1024)) != -1)
+						{
+							if (!cnt)
+								break;
+							if (!strncmp(line, "icy-name:", 9))
+								icy_name = g_strdup(line + 9);
+							else if (!strncmp(line, "x-audiocast-name:", 17))
+								icy_name = g_strdup(line + 17);
+							if (!strncmp(line, "icy-metaint:", 12))
+								icy_metaint = atoi(line + 12);
+							if (!strncmp(line, "x-audiocast-udpport:", 20)) {
+#ifdef DEBUG_UDP
+								fprintf (stderr, "Server wants udp messages on port %d\n", atoi (line + 20));
+#endif
+								/*udp_serverport = atoi (line + 20);*/
+							}
+							
+						}
+						else
+						{
+							eof = TRUE;
+							flac_ip.set_info_text(NULL);
+							break;
+						}
+					}
+				}
+			}
+		}
+	
+		if(redirect)
+		{
+			if (output_file)
+			{
+				fclose(output_file);
+				output_file = NULL;
+			}
+			close(sock);
+		}
+
+		g_free(user);
+		g_free(pass);
+		g_free(host);
+		g_free(filename);
+	} while(redirect);
+
+	g_free(url);
+	return eof ? -1 : sock;
+}
+
+static void *http_buffer_loop(void *arg)
+{
+	gchar *status, *url, *temp, *file;
+	gint cnt, written;
+	int udp_sock = 0;
+
+	url = (gchar *) arg;
+	sock = http_connect (url, false, offset);
+	
+	if (sock >= 0 && flac_cfg.stream.save_http_stream) {
+		gchar *output_name;
+		file = flac_http_get_title(url);
+		output_name = file;
+		if (!strncasecmp(output_name, "http://", 7))
+			output_name += 7;
+		temp = strrchr(output_name, '.');
+		if (temp && (!strcasecmp(temp, ".fla") || !strcasecmp(temp, ".flac")))
+			*temp = '\0';
+
+		while ((temp = strchr(output_name, '/')))
+			*temp = '_';
+		output_name = g_strdup_printf("%s/%s.flac", flac_cfg.stream.save_http_path, output_name);
+
+		g_free(file);
+
+		output_file = fopen(output_name, "wb");
+		g_free(output_name);
+	}
+
+	while (going)
+	{
+
+		if (!http_used() && !flac_ip.output->buffer_playing())
+			prebuffering = TRUE;
+		if (http_free() > 0 && !eof)
+		{
+			if (http_check_for_data())
+			{
+				cnt = min(http_free(), buffer_length - wr_index);
+				if (cnt > 1024)
+					cnt = 1024;
+				written = read(sock, buffer + wr_index, cnt);
+				if (written <= 0)
+				{
+					eof = TRUE;
+					if (prebuffering)
+					{
+						prebuffering = FALSE;
+
+						flac_ip.set_info_text(NULL);
+					}
+
+				}
+				else
+					wr_index = (wr_index + written) % buffer_length;
+			}
+
+			if (prebuffering)
+			{
+				if (http_used() > prebuffer_length)
+				{
+					prebuffering = FALSE;
+					flac_ip.set_info_text(NULL);
+				}
+				else
+				{
+					status = g_strdup_printf(_("PRE-BUFFERING: %dKB/%dKB"), http_used() / 1024, prebuffer_length / 1024);
+					flac_ip.set_info_text(status);
+					g_free(status);
+				}
+
+			}
+		}
+		else
+			xmms_usleep(10000);
+
+		if (flac_cfg.stream.use_udp_channel && udp_sock != 0)
+			if (udp_check_for_data(udp_sock) < 0)
+			{
+				close(udp_sock);
+				udp_sock = 0;
+			}
+	}
+	if (output_file)
+	{
+		fclose(output_file);
+		output_file = NULL;
+	}
+	if (sock >= 0) {
+		close(sock);
+	}
+	if (udp_sock != 0)
+		close(udp_sock);
+
+	g_free(buffer);
+	g_free(url);
+	
+	pthread_exit(NULL);
+}
+
+int flac_http_open(gchar * _url, guint64 _offset)
+{
+	gchar *url;
+
+	url = g_strdup(_url);
+
+	rd_index = 0;
+	wr_index = 0;
+	buffer_length = flac_cfg.stream.http_buffer_size * 1024;
+	prebuffer_length = (buffer_length * flac_cfg.stream.http_prebuffer) / 100;
+	buffer_read = 0;
+	icy_metaint = 0;
+	prebuffering = TRUE;
+	going = TRUE;
+	eof = FALSE;
+	buffer = g_malloc(buffer_length);
+	offset = _offset;
+
+	pthread_create(&thread, NULL, http_buffer_loop, url);
+
+	return 0;
+}
+
+char *flac_http_get_title(char *url)
+{
+	if (icy_name)
+		return g_strdup(icy_name);
+	if (g_basename(url) && strlen(g_basename(url)) > 0)
+		return g_strdup(g_basename(url));
+	return g_strdup(url);
+}
+
+/* Start UDP Channel specific stuff */
+
+/* Find a good local udp port and bind udp_sock to it, return the port */
+static int udp_establish_listener(int *sock)
+{
+	struct sockaddr_in sin;
+	socklen_t sinlen = sizeof (struct sockaddr_in);
+	
+#ifdef DEBUG_UDP
+	fprintf (stderr,"Establishing udp listener\n");
+#endif
+	
+	if ((*sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
+	{
+		g_log(NULL, G_LOG_LEVEL_CRITICAL,
+		      "udp_establish_listener(): unable to create socket");
+		return -1;
+	}
+
+	memset(&sin, 0, sinlen);
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = g_htonl(INADDR_ANY);
+			
+	if (bind(*sock, (struct sockaddr *)&sin, sinlen) < 0)
+	{
+		g_log(NULL, G_LOG_LEVEL_CRITICAL,
+		      "udp_establish_listener():  Failed to bind socket to localhost: %s", strerror(errno));
+		close(*sock);
+		return -1;
+	}
+	if (fcntl(*sock, F_SETFL, O_NONBLOCK) < 0)
+	{
+		g_log(NULL, G_LOG_LEVEL_CRITICAL,
+		      "udp_establish_listener():  Failed to set flags: %s", strerror(errno));
+		close(*sock);
+		return -1;
+	}
+
+	memset(&sin, 0, sinlen);
+	if (getsockname(*sock, (struct sockaddr *)&sin, &sinlen) < 0)
+	{
+		g_log(NULL, G_LOG_LEVEL_CRITICAL,
+		      "udp_establish_listener():  Failed to retrieve socket info: %s", strerror(errno));
+		close(*sock);
+		return -1;
+	}
+
+#ifdef DEBUG_UDP
+	fprintf (stderr,"Listening on local %s:%d\n", inet_ntoa(sin.sin_addr), g_ntohs(sin.sin_port));
+#endif
+	
+	return g_ntohs(sin.sin_port);
+}
+
+static int udp_check_for_data(int sock)
+{
+	char buf[1025], **lines;
+	char *valptr;
+	gchar *title;
+	gint len, i;
+	struct sockaddr_in from;
+	socklen_t fromlen;
+
+	fromlen = sizeof(struct sockaddr_in);
+	
+	if ((len = recvfrom(sock, buf, 1024, 0, (struct sockaddr *)&from, &fromlen)) < 0)
+	{
+		if (errno != EAGAIN)
+		{
+			g_log(NULL, G_LOG_LEVEL_CRITICAL,
+			      "udp_read_data(): Error reading from socket: %s", strerror(errno));
+			return -1;
+		}
+		return 0;
+	}
+	buf[len] = '\0';
+#ifdef DEBUG_UDP
+	fprintf (stderr,"Received: [%s]\n", buf);
+#endif
+	lines = g_strsplit(buf, "\n", 0);
+	if (!lines)
+		return 0;
+	
+	for (i = 0; lines[i]; i++)
+	{
+		while ((lines[i][strlen(lines[i]) - 1] == '\n') ||
+		       (lines[i][strlen(lines[i]) - 1] == '\r'))
+			lines[i][strlen(lines[i]) - 1] = '\0';
+		
+		valptr = strchr(lines[i], ':');
+		
+		if (!valptr)
+			continue;
+		else
+			valptr++;
+		
+		g_strstrip(valptr);
+		if (!strlen(valptr))
+			continue;
+		
+		if (strstr(lines[i], "x-audiocast-streamtitle") != NULL)
+		{
+			title = g_strdup_printf ("%s (%s)", valptr, icy_name);
+			if (going)
+				set_track_info(title, -1);
+			g_free (title);
+		}
+
+#if 0
+		else if (strstr(lines[i], "x-audiocast-streamlength") != NULL)
+		{
+			if (atoi(valptr) != -1)
+				set_track_info(NULL, atoi(valptr));
+		}
+#endif
+				
+		else if (strstr(lines[i], "x-audiocast-streammsg") != NULL)
+		{
+			/* set_track_info(title, -1); */
+/*  			xmms_show_message(_("Message"), valptr, _("Ok"), */
+/*  					  FALSE, NULL, NULL); */
+			g_message("Stream_message: %s", valptr);
+		}
+
+#if 0
+		/* Use this to direct your webbrowser.. yeah right.. */
+		else if (strstr(lines[i], "x-audiocast-streamurl") != NULL)
+		{
+			if (lasturl && g_strcmp (valptr, lasturl))
+			{
+				c_message (stderr, "Song URL: %s\n", valptr);
+				g_free (lasturl);
+				lasturl = g_strdup (valptr);
+			}
+		}
+#endif
+		else if (strstr(lines[i], "x-audiocast-udpseqnr:") != NULL)
+		{
+			gchar obuf[60];
+			sprintf(obuf, "x-audiocast-ack: %ld \r\n", atol(valptr));
+			if (sendto(sock, obuf, strlen(obuf), 0, (struct sockaddr *) &from, fromlen) < 0)
+			{
+				g_log(NULL, G_LOG_LEVEL_WARNING,
+				      "udp_check_for_data(): Unable to send ack to server: %s", strerror(errno));
+			}
+#ifdef DEBUG_UDP
+			else
+				fprintf(stderr,"Sent ack: %s", obuf);
+			fprintf (stderr,"Remote: %s:%d\n", inet_ntoa(from.sin_addr), g_ntohs(from.sin_port));
+#endif
+		}
+	}
+	g_strfreev(lines);
+	return 0;
+}