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/* Copyright (c) 2007, Christophe Fergeau <teuf@gnome.org>
*
* The code contained in this file is free software; you can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either version
* 2.1 of the License, or (at your option) any later version.
*
* This file 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this code; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* iTunes and iPod are trademarks of Apple
*
* This product is not supported/written/published by Apple!
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <scsi/sg_cmds.h>
#include <sys/stat.h>
#include <glib.h>
#include "itdb.h"
extern char *read_sysinfo_extended (const char *device);
/* do_sg_inquiry and read_sysinfo_extended were heavily
* inspired from libipoddevice
*/
static unsigned char
do_sg_inquiry (int fd, int page, char *buf, char **start)
{
const unsigned int IPOD_BUF_LENGTH = 252;
if (sg_ll_inquiry (fd, 0, 1, page, buf, IPOD_BUF_LENGTH, 1, 0) != 0) {
*start = NULL;
return 0;
} else {
*start = buf + 4;
return (unsigned char)buf[3];
}
}
G_GNUC_INTERNAL char *
read_sysinfo_extended (const char *device)
{
int fd;
const unsigned int IPOD_XML_PAGE = 0xc0;
unsigned char len;
char buf[512];
char *start;
char *offsets;
GString *xml_sysinfo;
unsigned int i;
fd = open (device, O_RDWR);
if (fd < 0) {
return NULL;
}
len = do_sg_inquiry (fd, IPOD_XML_PAGE, buf, &start);
if (start == NULL || len == 0) {
close(fd);
return NULL;
}
offsets = g_new (char, len+1);
memcpy(offsets, start, len);
offsets[len] = 0;
xml_sysinfo = g_string_new_len (NULL, 512);
if (xml_sysinfo == NULL) {
g_free (offsets);
close (fd);
return NULL;
}
for (i = 0; offsets[i]; i++) {
bzero(buf, 512);
len = do_sg_inquiry (fd, offsets[i], buf, &start);
start[len] = 0;
g_string_append (xml_sysinfo, start);
}
g_free (offsets);
close (fd);
return g_string_free (xml_sysinfo, FALSE);
}
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