130 lines
2.4 KiB
C
130 lines
2.4 KiB
C
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/*
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* cdrom_id - determines the capabilities of cdrom drives
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*
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* Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* Framework based on ata_id which is:
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* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
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*
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <linux/types.h>
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#include <linux/cdrom.h>
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#include "../../logging.h"
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#include "../../udev_utils.h"
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#ifdef USE_LOG
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void log_message(int priority, const char *format, ...)
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{
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va_list args;
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static int udev_log = -1;
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if (udev_log == -1) {
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const char *value;
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value = getenv("UDEV_LOG");
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if (value)
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udev_log = log_priority(value);
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else
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udev_log = LOG_ERR;
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}
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if (priority > udev_log)
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return;
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va_start(args, format);
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vsyslog(priority, format, args);
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va_end(args);
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}
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#endif
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int main(int argc, char *argv[])
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{
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const char *node = NULL;
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int i;
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int export = 0;
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int fd;
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int rc = 0;
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int result;
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logging_init("cdrom_id");
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for (i = 1 ; i < argc; i++) {
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char *arg = argv[i];
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if (strcmp(arg, "--export") == 0) {
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export = 1;
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} else
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node = arg;
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}
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if (!node) {
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err("no node specified");
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rc = 1;
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goto exit;
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}
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fd = open(node, O_RDONLY);
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if (fd < 0)
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if (errno == ENOMEDIUM)
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fd = open(node, O_RDONLY|O_NONBLOCK);
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if (fd < 0) {
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err("unable to open '%s'", node);
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rc = 1;
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goto exit;
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}
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result = ioctl(fd, CDROM_GET_CAPABILITY);
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if (result < 0) {
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err("CDROM_GET_CABILITY failed for '%s'", node);
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rc = 3;
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goto close;
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}
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printf("ID_CDC=true\n");
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if (result & CDC_CD_R)
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printf("ID_CDC_CD_R=true\n");
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if (result & CDC_CD_RW)
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printf("ID_CDC_CD_RW=true\n");
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if (result & CDC_DVD)
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printf("ID_CDC_DVD=true\n");
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if (result & CDC_DVD_R)
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printf("ID_CDC_DVD_R=true\n");
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if (result & CDC_DVD_RAM)
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printf("ID_CDC_DVD_RAM=true\n");
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if (result & CDC_MRW)
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printf("ID_CDC_MRW=true\n");
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if (result & CDC_MRW_W)
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printf("ID_CDC_MRW_W=true\n");
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if (result & CDC_RAM)
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printf("ID_CDC_RAM=true\n");
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goto close;
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close:
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close(fd);
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exit:
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logging_close();
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return rc;
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}
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