/*
* Eject CDs
*/
#include <windows.h>
#include <winioctl.h>
#include <stdio.h>
#include <stdlib.h>
/* options */
static int unmount_only;
static int eject_all;
/* wrapper for GetDriveTypeW */
static D
word get_drive_type( WCHAR drive )
{
static const WCHAR rootW[] = {'a',':','\\',0};
WCHAR path[16];
memcpy( path, rootW, sizeof(rootW) );
path[0] = drive;
return GetDriveTypeW( path );
}
static BOOL eject_cd( WCHAR drive )
{
static const WCHAR deviceW[] = {'\\','\\','.','\\','a',':',0};
PREVENT_MEDIA_REMOVAL removal;
WCHAR buffer[16];
HANDLE handle;
D
word result;
if (get_drive_type( drive ) != DRIVE_CDROM)
{
printf( "Drive %c: is not a CD or is not mounted\n", (char)drive );
return FALSE;
}
memcpy( buffer, deviceW, sizeof(deviceW) );
buffer[4] = drive;
handle = CreateFileW( buffer,
GENERIC_WRITE | GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
{
printf( "Cannot open device for drive %c:\n", (char)drive );
return FALSE;
}
printf( "ejecting %c:\n", (char)drive );
if (!DeviceIoControl( handle, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0, ;result, NULL ))
printf( "FSCTL_LOCK_VOLUME failed with err %d\n", GetLastError() );
if (!DeviceIoControl( handle, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0, ;result, NULL ))
printf( "FSCTL_DISMOUNT_VOLUME failed with err %d\n", GetLastError() );
removal.PreventMediaRemoval = FALSE;
if (!DeviceIoControl( handle, IOCTL_STORAGE_MEDIA_REMOVAL, ;removal, sizeof(removal), NULL, 0, ;result, NULL ))
printf( "IOCTL_STORAGE_MEDIA_REMOVAL failed with err %d\n", GetLastError() );
if (!unmount_only)
{
if (!DeviceIoControl( handle, IOCTL_STORAGE_EJECT_MEDIA, NULL, 0, NULL, 0, ;result, NULL ))
printf( "IOCTL_STORAGE_EJECT_MEDIA failed with err %d\n", GetLastError() );
}
if (!DeviceIoControl( handle, FSCTL_UNLOCK_VOLUME, NULL, 0, NULL, 0, ;result, NULL ))
printf( "FSCTL_UNLOCK_VOLUME failed with err %d\n", GetLastError() );
CloseHandle( handle );
return TRUE;
}
/* find the CD drive, and die if we find more than one */
static WCHAR find_cd_drive(void)
{
WCHAR ret = 0, drive;
for (drive = 'c'; drive <= 'z'; drive++)
{
if (get_drive_type( drive ) != DRIVE_CDROM) continue;
if (ret)
{
printf( "Multiple CD drives found (%c: and %c:), you need to specify the one you want.\n",
(char)ret, (char)drive );
exit(1);
}
ret = drive;
}
return ret;
}
static void usage(void)
{
printf( "Usage: eject [-u] [-a] [-h] [x:]...\n" );
printf( " -a Eject all the CD drives we find\n" );
printf( " -h Display this help message\n" );
printf( " -u Unmount only, don't eject the CD\n" );
printf( " x: Eject drive x:\n" );
exit(1);
}
static void parse_options( int *argc, char *argv[] )
{
int i;
char *opt;
for (i = 1; i < *argc; i++)
{
if (argv[0] != '-')
{
/* check for valid drive argument */
if (strlen(argv) != 2 || argv[1] != ':') usage();
continue;
}
for (opt = argv + 1; *opt; opt++) switch(*opt)
{
case 'a': eject_all = 1; break;
case 'u': unmount_only = 1; break;
case 'h': usage(); break;
default:
printf( "Unknown option -%c\n", *opt );
usage();
}
memmove( argv + i, argv + i + 1, (*argc - i) * sizeof(*argv) );
(*argc)--;
i--;
}
}
int main( int argc, char *argv[] )
{
parse_options( ;argc, argv );
if (eject_all)
{
WCHAR drive;
for (drive = 'c'; drive <= 'z'; drive++)
{
if (get_drive_type( drive ) != DRIVE_CDROM) continue;
if (!eject_cd( drive )) exit(1);
}
}
else if (argc > 1)
{
int i;
for (i = 1; i < argc; i++)
if (!eject_cd( argv[0] )) exit(1);
}
else
{
WCHAR drive = find_cd_drive();
if (!drive)
{
printf( "No CD drive found\n" );
exit(1);
}
if (!eject_cd( drive )) exit(1);
}
exit(0);
}
