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/*
* cdrom_id - determines the capabilities of cdrom drives
*
* Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de>
*
* 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 version 2 of the License.
*
* Framework based on ata_id which is:
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <ctype.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/types.h>
#include <linux/cdrom.h>
#include "../../logging.h"
#include "../../udev_utils.h"
#ifdef USE_LOG
void log_message(int priority, const char *format, ...)
{
va_list args;
static int udev_log = -1;
if (udev_log == -1) {
const char *value;
value = getenv("UDEV_LOG");
if (value)
udev_log = log_priority(value);
else
udev_log = LOG_ERR;
}
if (priority > udev_log)
return;
va_start(args, format);
vsyslog(priority, format, args);
va_end(args);
}
#endif
int main(int argc, char *argv[])
{
const char *node = NULL;
int i;
int export = 0;
int fd;
int rc = 0;
int result;
logging_init("cdrom_id");
for (i = 1 ; i < argc; i++) {
char *arg = argv[i];
if (strcmp(arg, "--export") == 0) {
export = 1;
} else
node = arg;
}
if (!node) {
err("no node specified");
rc = 1;
goto exit;
}
fd = open(node, O_RDONLY);
if (fd < 0)
if (errno == ENOMEDIUM)
fd = open(node, O_RDONLY|O_NONBLOCK);
if (fd < 0) {
err("unable to open '%s'", node);
rc = 1;
goto exit;
}
result = ioctl(fd, CDROM_GET_CAPABILITY, NULL);
if (result < 0) {
err("CDROM_GET_CABILITY failed for '%s'", node);
rc = 3;
goto close;
}
printf("ID_CDROM=1\n");
if (result & CDC_CD_R)
printf("ID_CDROM_CD_R=1\n");
if (result & CDC_CD_RW)
printf("ID_CDROM_CD_RW=1\n");
if (result & CDC_DVD)
printf("ID_CDROM_DVD=1\n");
if (result & CDC_DVD_R)
printf("ID_CDROM_DVD_R=1\n");
if (result & CDC_DVD_RAM)
printf("ID_CDROM_DVD_RAM=1\n");
if (result & CDC_MRW)
printf("ID_CDROM_MRW=1\n");
if (result & CDC_MRW_W)
printf("ID_CDROM_MRW_W=1\n");
if (result & CDC_RAM)
printf("ID_CDROM_RAM=1\n");
goto close;
close:
close(fd);
exit:
logging_close();
return rc;
}
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