programs/eject/eject.c

   1 /*
   2  * Eject CDs
   3  *
   4  * Copyright 2005 Alexandre Julliard for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <windows.h>
  24 #include <winioctl.h>
  25 #include <ntddstor.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(eject);
  32
  33 /* options */
  34 static int unmount_only;
  35 static int eject_all;
  36
  37 /* wrapper for GetDriveTypeW */
  38 static DWORD get_drive_type( WCHAR drive )
  39 {
  40     static const WCHAR rootW[] = {'a',':','\\',0};
  41     WCHAR path[16];
  42
  43     memcpy( path, rootW, sizeof(rootW) );
  44     path[0] = drive;
  45     return GetDriveTypeW( path );
  46 }
  47
  48 static BOOL eject_cd( WCHAR drive )
  49 {
  50     static const WCHAR deviceW[] = {'\\','\\','.','\\','a',':',0};
  51     PREVENT_MEDIA_REMOVAL removal;
  52     WCHAR buffer[16];
  53     HANDLE handle;
  54     DWORD result;
  55
  56     if (get_drive_type( drive ) != DRIVE_CDROM)
  57     {
  58         WINE_MESSAGE( "Drive %c: is not a CD or is not mounted\n", (char)drive );
  59         return FALSE;
  60     }
  61
  62     memcpy( buffer, deviceW, sizeof(deviceW) );
  63     buffer[4] = drive;
  64     handle = CreateFileW( buffer, 0, FILE_SHARE_READ|FILE_SHARE_WRITE,
  65                           NULL, OPEN_EXISTING, 0, 0 );
  66     if (handle == INVALID_HANDLE_VALUE)
  67     {
  68         WINE_MESSAGE( "Cannot open device for drive %c:\n", (char)drive );
  69         return FALSE;
  70     }
  71
  72     WINE_TRACE( "ejecting %c:\n", (char)drive );
  73
  74     if (!DeviceIoControl( handle, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0, &result, NULL ))
  75         WINE_WARN( "FSCTL_DISMOUNT_VOLUME failed with err %ld\n", GetLastError() );
  76
  77     removal.PreventMediaRemoval = FALSE;
  78     if (!DeviceIoControl( handle, IOCTL_STORAGE_MEDIA_REMOVAL, &removal, sizeof(removal), NULL, 0, &result, NULL ))
  79         WINE_WARN( "IOCTL_STORAGE_MEDIA_REMOVAL failed with err %ld\n", GetLastError() );
  80
  81     if (!unmount_only)
  82     {
  83         if (!DeviceIoControl( handle, IOCTL_STORAGE_EJECT_MEDIA, NULL, 0, NULL, 0, &result, NULL ))
  84             WINE_WARN( "IOCTL_STORAGE_EJECT_MEDIA failed with err %ld\n", GetLastError() );
  85     }
  86
  87     CloseHandle( handle );
  88     return TRUE;
  89 }
  90
  91 /* find the CD drive, and die if we find more than one */
  92 static WCHAR find_cd_drive(void)
  93 {
  94     WCHAR ret = 0, drive;
  95
  96     for (drive = 'c'; drive <= 'z'; drive++)
  97     {
  98         if (get_drive_type( drive ) != DRIVE_CDROM) continue;
  99         if (ret)
 100         {
 101             WINE_MESSAGE( "Multiple CD drives found (%c: and %c:), you need to specify the one you want.\n",
 102                           (char)ret, (char)drive );
 103             exit(1);
 104         }
 105         ret = drive;
 106     }
 107     return ret;
 108 }
 109
 110 static void usage(void)
 111 {
 112     WINE_MESSAGE( "Usage: eject [-u] [-a] [-h] [x:]...\n" );
 113     WINE_MESSAGE( "    -a  Eject all the CD drives we find\n" );
 114     WINE_MESSAGE( "    -h  Display this help message\n" );
 115     WINE_MESSAGE( "    -u  Unmount only, don't eject the CD\n" );
 116     WINE_MESSAGE( "    x:  Eject drive x:\n" );
 117     exit(1);
 118 }
 119
 120 static void parse_options( int *argc, char *argv[] )
 121 {
 122     int i;
 123     char *opt;
 124
 125     for (i = 1; i < *argc; i++)
 126     {
 127         if (argv[i][0] != '-')
 128         {
 129             /* check for valid drive argument */
 130             if (strlen(argv[i]) != 2 || argv[i][1] != ':') usage();
 131             continue;
 132         }
 133         for (opt = argv[i] + 1; *opt; opt++) switch(*opt)
 134         {
 135         case 'a': eject_all = 1; break;
 136         case 'u': unmount_only = 1; break;
 137         case 'h': usage(); break;
 138         default:
 139             WINE_MESSAGE( "Unknown option -%c\n", *opt );
 140             usage();
 141         }
 142         memmove( argv + i, argv + i + 1, (*argc - i) * sizeof(*argv) );
 143         (*argc)--;
 144         i--;
 145     }
 146 }
 147
 148 int main( int argc, char *argv[] )
 149 {
 150     parse_options( &argc, argv );
 151
 152     if (eject_all)
 153     {
 154         WCHAR drive;
 155
 156         for (drive = 'c'; drive <= 'z'; drive++)
 157         {
 158             if (get_drive_type( drive ) != DRIVE_CDROM) continue;
 159             if (!eject_cd( drive )) exit(1);
 160         }
 161     }
 162     else if (argc > 1)
 163     {
 164         int i;
 165
 166         for (i = 1; i < argc; i++)
 167             if (!eject_cd( argv[i][0] )) exit(1);
 168     }
 169     else
 170     {
 171         WCHAR drive = find_cd_drive();
 172
 173         if (!drive)
 174         {
 175             WINE_MESSAGE( "No CD drive found\n" );
 176             exit(1);
 177         }
 178         if (!eject_cd( drive )) exit(1);
 179     }
 180     exit(0);
 181 }