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1229 lines
35 KiB
C
1229 lines
35 KiB
C
/*
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* DOS drives handling functions
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*
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* Copyright 1993 Erik Bos
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* Copyright 1996 Alexandre Julliard
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*/
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#include "config.h"
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#include <assert.h>
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#include <ctype.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifdef STATFS_DEFINED_BY_SYS_VFS
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# include <sys/vfs.h>
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#else
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# ifdef STATFS_DEFINED_BY_SYS_MOUNT
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# include <sys/mount.h>
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# else
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# ifdef STATFS_DEFINED_BY_SYS_STATFS
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# include <sys/statfs.h>
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# endif
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# endif
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#endif
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#include "winbase.h"
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#include "wine/winbase16.h" /* for GetCurrentTask */
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#include "wine/winestring.h" /* for lstrcpyAtoW */
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#include "winerror.h"
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#include "drive.h"
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#include "file.h"
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#include "heap.h"
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#include "msdos.h"
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#include "options.h"
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#include "task.h"
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#include "debugtools.h"
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DECLARE_DEBUG_CHANNEL(dosfs)
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DECLARE_DEBUG_CHANNEL(file)
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typedef struct
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{
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char *root; /* root dir in Unix format without trailing / */
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char *dos_cwd; /* cwd in DOS format without leading or trailing \ */
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char *unix_cwd; /* cwd in Unix format without leading or trailing / */
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char *device; /* raw device path */
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char label[12]; /* drive label */
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DWORD serial; /* drive serial number */
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DRIVETYPE type; /* drive type */
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UINT flags; /* drive flags */
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dev_t dev; /* unix device number */
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ino_t ino; /* unix inode number */
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} DOSDRIVE;
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static const char * const DRIVE_Types[] =
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{
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"floppy", /* TYPE_FLOPPY */
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"hd", /* TYPE_HD */
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"cdrom", /* TYPE_CDROM */
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"network" /* TYPE_NETWORK */
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};
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/* Known filesystem types */
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typedef struct
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{
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const char *name;
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UINT flags;
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} FS_DESCR;
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static const FS_DESCR DRIVE_Filesystems[] =
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{
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{ "unix", DRIVE_CASE_SENSITIVE | DRIVE_CASE_PRESERVING },
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{ "msdos", DRIVE_SHORT_NAMES },
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{ "dos", DRIVE_SHORT_NAMES },
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{ "fat", DRIVE_SHORT_NAMES },
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{ "vfat", DRIVE_CASE_PRESERVING },
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{ "win95", DRIVE_CASE_PRESERVING },
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{ NULL, 0 }
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};
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static DOSDRIVE DOSDrives[MAX_DOS_DRIVES];
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static int DRIVE_CurDrive = -1;
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static HTASK16 DRIVE_LastTask = 0;
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/***********************************************************************
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* DRIVE_GetDriveType
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*/
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static DRIVETYPE DRIVE_GetDriveType( const char *name )
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{
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char buffer[20];
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int i;
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PROFILE_GetWineIniString( name, "Type", "hd", buffer, sizeof(buffer) );
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for (i = 0; i < sizeof(DRIVE_Types)/sizeof(DRIVE_Types[0]); i++)
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{
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if (!strcasecmp( buffer, DRIVE_Types[i] )) return (DRIVETYPE)i;
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}
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MESSAGE("%s: unknown type '%s', defaulting to 'hd'.\n", name, buffer );
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return TYPE_HD;
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}
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/***********************************************************************
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* DRIVE_GetFSFlags
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*/
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static UINT DRIVE_GetFSFlags( const char *name, const char *value )
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{
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const FS_DESCR *descr;
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for (descr = DRIVE_Filesystems; descr->name; descr++)
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if (!strcasecmp( value, descr->name )) return descr->flags;
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MESSAGE("%s: unknown filesystem type '%s', defaulting to 'win95'.\n",
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name, value );
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return DRIVE_CASE_PRESERVING;
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}
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/***********************************************************************
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* DRIVE_Init
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*/
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int DRIVE_Init(void)
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{
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int i, len, count = 0;
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char name[] = "Drive A";
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char path[MAX_PATHNAME_LEN];
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char buffer[80];
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struct stat drive_stat_buffer;
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char *p;
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DOSDRIVE *drive;
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for (i = 0, drive = DOSDrives; i < MAX_DOS_DRIVES; i++, name[6]++, drive++)
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{
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PROFILE_GetWineIniString( name, "Path", "", path, sizeof(path)-1 );
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if (path[0])
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{
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p = path + strlen(path) - 1;
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while ((p > path) && ((*p == '/') || (*p == '\\'))) *p-- = '\0';
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if (!path[0]) strcpy( path, "/" );
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if (stat( path, &drive_stat_buffer ))
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{
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MESSAGE("Could not stat %s, ignoring drive %c:\n", path, 'A' + i );
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continue;
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}
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if (!S_ISDIR(drive_stat_buffer.st_mode))
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{
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MESSAGE("%s is not a directory, ignoring drive %c:\n",
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path, 'A' + i );
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continue;
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}
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drive->root = HEAP_strdupA( SystemHeap, 0, path );
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drive->dos_cwd = HEAP_strdupA( SystemHeap, 0, "" );
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drive->unix_cwd = HEAP_strdupA( SystemHeap, 0, "" );
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drive->type = DRIVE_GetDriveType( name );
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drive->device = NULL;
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drive->flags = 0;
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drive->dev = drive_stat_buffer.st_dev;
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drive->ino = drive_stat_buffer.st_ino;
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/* Get the drive label */
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PROFILE_GetWineIniString( name, "Label", name, drive->label, 12 );
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if ((len = strlen(drive->label)) < 11)
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{
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/* Pad label with spaces */
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memset( drive->label + len, ' ', 11 - len );
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drive->label[12] = '\0';
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}
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/* Get the serial number */
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PROFILE_GetWineIniString( name, "Serial", "12345678",
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buffer, sizeof(buffer) );
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drive->serial = strtoul( buffer, NULL, 16 );
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/* Get the filesystem type */
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PROFILE_GetWineIniString( name, "Filesystem", "win95",
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buffer, sizeof(buffer) );
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drive->flags = DRIVE_GetFSFlags( name, buffer );
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/* Get the device */
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PROFILE_GetWineIniString( name, "Device", "",
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buffer, sizeof(buffer) );
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if (buffer[0])
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drive->device = HEAP_strdupA( SystemHeap, 0, buffer );
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/* Make the first hard disk the current drive */
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if ((DRIVE_CurDrive == -1) && (drive->type == TYPE_HD))
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DRIVE_CurDrive = i;
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count++;
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TRACE_(dosfs)("%s: path=%s type=%s label='%s' serial=%08lx flags=%08x dev=%x ino=%x\n",
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name, path, DRIVE_Types[drive->type],
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drive->label, drive->serial, drive->flags,
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(int)drive->dev, (int)drive->ino );
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}
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else WARN_(dosfs)("%s: not defined\n", name );
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}
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if (!count)
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{
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MESSAGE("Warning: no valid DOS drive found, check your configuration file.\n" );
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/* Create a C drive pointing to Unix root dir */
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DOSDrives[2].root = HEAP_strdupA( SystemHeap, 0, "/" );
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DOSDrives[2].dos_cwd = HEAP_strdupA( SystemHeap, 0, "" );
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DOSDrives[2].unix_cwd = HEAP_strdupA( SystemHeap, 0, "" );
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strcpy( DOSDrives[2].label, "Drive C " );
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DOSDrives[2].serial = 0x12345678;
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DOSDrives[2].type = TYPE_HD;
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DOSDrives[2].flags = 0;
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DRIVE_CurDrive = 2;
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}
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/* Make sure the current drive is valid */
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if (DRIVE_CurDrive == -1)
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{
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for (i = 0, drive = DOSDrives; i < MAX_DOS_DRIVES; i++, drive++)
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{
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if (drive->root && !(drive->flags & DRIVE_DISABLED))
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{
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DRIVE_CurDrive = i;
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break;
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}
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}
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}
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return 1;
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}
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/***********************************************************************
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* DRIVE_IsValid
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*/
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int DRIVE_IsValid( int drive )
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{
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if ((drive < 0) || (drive >= MAX_DOS_DRIVES)) return 0;
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return (DOSDrives[drive].root &&
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!(DOSDrives[drive].flags & DRIVE_DISABLED));
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}
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/***********************************************************************
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* DRIVE_GetCurrentDrive
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*/
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int DRIVE_GetCurrentDrive(void)
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{
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TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
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if (pTask && (pTask->curdrive & 0x80)) return pTask->curdrive & ~0x80;
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return DRIVE_CurDrive;
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}
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/***********************************************************************
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* DRIVE_SetCurrentDrive
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*/
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int DRIVE_SetCurrentDrive( int drive )
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{
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TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
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if (!DRIVE_IsValid( drive ))
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{
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SetLastError( ERROR_INVALID_DRIVE );
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return 0;
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}
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TRACE_(dosfs)("%c:\n", 'A' + drive );
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DRIVE_CurDrive = drive;
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if (pTask) pTask->curdrive = drive | 0x80;
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return 1;
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}
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/***********************************************************************
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* DRIVE_FindDriveRoot
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*
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* Find a drive for which the root matches the begginning of the given path.
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* This can be used to translate a Unix path into a drive + DOS path.
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* Return value is the drive, or -1 on error. On success, path is modified
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* to point to the beginning of the DOS path.
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*/
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int DRIVE_FindDriveRoot( const char **path )
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{
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/* idea: check at all '/' positions.
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* If the device and inode of that path is identical with the
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* device and inode of the current drive then we found a solution.
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* If there is another drive pointing to a deeper position in
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* the file tree, we want to find that one, not the earlier solution.
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*/
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int drive, rootdrive = -1;
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char buffer[MAX_PATHNAME_LEN];
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char *next = buffer;
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const char *p = *path;
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struct stat st;
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strcpy( buffer, "/" );
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for (;;)
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{
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if (stat( buffer, &st ) || !S_ISDIR( st.st_mode )) break;
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/* Find the drive */
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for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
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{
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if (!DOSDrives[drive].root ||
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(DOSDrives[drive].flags & DRIVE_DISABLED)) continue;
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if ((DOSDrives[drive].dev == st.st_dev) &&
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(DOSDrives[drive].ino == st.st_ino))
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{
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rootdrive = drive;
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*path = p;
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}
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}
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/* Get the next path component */
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*next++ = '/';
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while ((*p == '/') || (*p == '\\')) p++;
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if (!*p) break;
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while (!IS_END_OF_NAME(*p)) *next++ = *p++;
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*next = 0;
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}
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*next = 0;
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if (rootdrive != -1)
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TRACE_(dosfs)("%s -> drive %c:, root='%s', name='%s'\n",
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buffer, 'A' + rootdrive,
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DOSDrives[rootdrive].root, *path );
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return rootdrive;
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}
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/***********************************************************************
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* DRIVE_GetRoot
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*/
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const char * DRIVE_GetRoot( int drive )
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{
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if (!DRIVE_IsValid( drive )) return NULL;
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return DOSDrives[drive].root;
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}
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/***********************************************************************
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* DRIVE_GetDosCwd
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*/
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const char * DRIVE_GetDosCwd( int drive )
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{
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TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
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if (!DRIVE_IsValid( drive )) return NULL;
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/* Check if we need to change the directory to the new task. */
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if (pTask && (pTask->curdrive & 0x80) && /* The task drive is valid */
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((pTask->curdrive & ~0x80) == drive) && /* and it's the one we want */
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(DRIVE_LastTask != GetCurrentTask())) /* and the task changed */
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{
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/* Perform the task-switch */
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if (!DRIVE_Chdir( drive, pTask->curdir )) DRIVE_Chdir( drive, "\\" );
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DRIVE_LastTask = GetCurrentTask();
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}
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return DOSDrives[drive].dos_cwd;
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}
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/***********************************************************************
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* DRIVE_GetUnixCwd
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*/
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const char * DRIVE_GetUnixCwd( int drive )
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{
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TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
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if (!DRIVE_IsValid( drive )) return NULL;
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/* Check if we need to change the directory to the new task. */
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if (pTask && (pTask->curdrive & 0x80) && /* The task drive is valid */
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((pTask->curdrive & ~0x80) == drive) && /* and it's the one we want */
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(DRIVE_LastTask != GetCurrentTask())) /* and the task changed */
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{
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/* Perform the task-switch */
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if (!DRIVE_Chdir( drive, pTask->curdir )) DRIVE_Chdir( drive, "\\" );
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DRIVE_LastTask = GetCurrentTask();
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}
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return DOSDrives[drive].unix_cwd;
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}
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/***********************************************************************
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* DRIVE_GetLabel
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*/
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const char * DRIVE_GetLabel( int drive )
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{
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if (!DRIVE_IsValid( drive )) return NULL;
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return DOSDrives[drive].label;
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}
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/***********************************************************************
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* DRIVE_GetSerialNumber
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*/
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DWORD DRIVE_GetSerialNumber( int drive )
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{
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if (!DRIVE_IsValid( drive )) return 0;
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return DOSDrives[drive].serial;
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}
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/***********************************************************************
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* DRIVE_SetSerialNumber
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*/
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int DRIVE_SetSerialNumber( int drive, DWORD serial )
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{
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if (!DRIVE_IsValid( drive )) return 0;
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DOSDrives[drive].serial = serial;
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return 1;
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}
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/***********************************************************************
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* DRIVE_GetType
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*/
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DRIVETYPE DRIVE_GetType( int drive )
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{
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if (!DRIVE_IsValid( drive )) return TYPE_INVALID;
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return DOSDrives[drive].type;
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}
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/***********************************************************************
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* DRIVE_GetFlags
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*/
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UINT DRIVE_GetFlags( int drive )
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{
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if ((drive < 0) || (drive >= MAX_DOS_DRIVES)) return 0;
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return DOSDrives[drive].flags;
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}
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/***********************************************************************
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* DRIVE_Chdir
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*/
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int DRIVE_Chdir( int drive, const char *path )
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{
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DOS_FULL_NAME full_name;
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char buffer[MAX_PATHNAME_LEN];
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LPSTR unix_cwd;
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BY_HANDLE_FILE_INFORMATION info;
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TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
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strcpy( buffer, "A:" );
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buffer[0] += drive;
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TRACE_(dosfs)("(%c:,%s)\n", buffer[0], path );
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lstrcpynA( buffer + 2, path, sizeof(buffer) - 2 );
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if (!DOSFS_GetFullName( buffer, TRUE, &full_name )) return 0;
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if (!FILE_Stat( full_name.long_name, &info )) return 0;
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if (!(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
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{
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SetLastError( ERROR_FILE_NOT_FOUND );
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return 0;
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}
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unix_cwd = full_name.long_name + strlen( DOSDrives[drive].root );
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while (*unix_cwd == '/') unix_cwd++;
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TRACE_(dosfs)("(%c:): unix_cwd=%s dos_cwd=%s\n",
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'A' + drive, unix_cwd, full_name.short_name + 3 );
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HeapFree( SystemHeap, 0, DOSDrives[drive].dos_cwd );
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HeapFree( SystemHeap, 0, DOSDrives[drive].unix_cwd );
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DOSDrives[drive].dos_cwd = HEAP_strdupA( SystemHeap, 0,
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full_name.short_name + 3 );
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DOSDrives[drive].unix_cwd = HEAP_strdupA( SystemHeap, 0, unix_cwd );
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if (pTask && (pTask->curdrive & 0x80) &&
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((pTask->curdrive & ~0x80) == drive))
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{
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lstrcpynA( pTask->curdir, full_name.short_name + 2,
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sizeof(pTask->curdir) );
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DRIVE_LastTask = GetCurrentTask();
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}
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return 1;
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}
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/***********************************************************************
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* DRIVE_Disable
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*/
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int DRIVE_Disable( int drive )
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{
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if ((drive < 0) || (drive >= MAX_DOS_DRIVES) || !DOSDrives[drive].root)
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{
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SetLastError( ERROR_INVALID_DRIVE );
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return 0;
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}
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DOSDrives[drive].flags |= DRIVE_DISABLED;
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return 1;
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}
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/***********************************************************************
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* DRIVE_Enable
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*/
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int DRIVE_Enable( int drive )
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{
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if ((drive < 0) || (drive >= MAX_DOS_DRIVES) || !DOSDrives[drive].root)
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{
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SetLastError( ERROR_INVALID_DRIVE );
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return 0;
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}
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DOSDrives[drive].flags &= ~DRIVE_DISABLED;
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return 1;
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}
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/***********************************************************************
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* DRIVE_SetLogicalMapping
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*/
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int DRIVE_SetLogicalMapping ( int existing_drive, int new_drive )
|
|
{
|
|
/* If new_drive is already valid, do nothing and return 0
|
|
otherwise, copy DOSDrives[existing_drive] to DOSDrives[new_drive] */
|
|
|
|
DOSDRIVE *old, *new;
|
|
|
|
old = DOSDrives + existing_drive;
|
|
new = DOSDrives + new_drive;
|
|
|
|
if ((existing_drive < 0) || (existing_drive >= MAX_DOS_DRIVES) ||
|
|
!old->root ||
|
|
(new_drive < 0) || (new_drive >= MAX_DOS_DRIVES))
|
|
{
|
|
SetLastError( ERROR_INVALID_DRIVE );
|
|
return 0;
|
|
}
|
|
|
|
if ( new->root )
|
|
{
|
|
TRACE_(dosfs)("Can\'t map drive %c to drive %c - "
|
|
"drive %c already exists\n",
|
|
'A' + existing_drive, 'A' + new_drive,
|
|
'A' + new_drive );
|
|
/* it is already mapped there, so return success */
|
|
if (!strcmp(old->root,new->root))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
new->root = HEAP_strdupA( SystemHeap, 0, old->root );
|
|
new->dos_cwd = HEAP_strdupA( SystemHeap, 0, old->dos_cwd );
|
|
new->unix_cwd = HEAP_strdupA( SystemHeap, 0, old->unix_cwd );
|
|
memcpy ( new->label, old->label, 12 );
|
|
new->serial = old->serial;
|
|
new->type = old->type;
|
|
new->flags = old->flags;
|
|
new->dev = old->dev;
|
|
new->ino = old->ino;
|
|
|
|
TRACE_(dosfs)("Drive %c is now equal to drive %c\n",
|
|
'A' + new_drive, 'A' + existing_drive );
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DRIVE_OpenDevice
|
|
*
|
|
* Open the drive raw device and return a Unix fd (or -1 on error).
|
|
*/
|
|
int DRIVE_OpenDevice( int drive, int flags )
|
|
{
|
|
if (!DRIVE_IsValid( drive )) return -1;
|
|
return open( DOSDrives[drive].device, flags );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DRIVE_RawRead
|
|
*
|
|
* Read raw sectors from a device
|
|
*/
|
|
int DRIVE_RawRead(BYTE drive, DWORD begin, DWORD nr_sect, BYTE *dataptr, BOOL fake_success)
|
|
{
|
|
int fd;
|
|
|
|
if ((fd = DRIVE_OpenDevice( drive, O_RDONLY )) != -1)
|
|
{
|
|
lseek( fd, begin * 512, SEEK_SET );
|
|
/* FIXME: check errors */
|
|
read( fd, dataptr, nr_sect * 512 );
|
|
close( fd );
|
|
}
|
|
else
|
|
{
|
|
memset(dataptr, 0, nr_sect * 512);
|
|
if (fake_success)
|
|
{
|
|
if (begin == 0 && nr_sect > 1) *(dataptr + 512) = 0xf8;
|
|
if (begin == 1) *dataptr = 0xf8;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DRIVE_RawWrite
|
|
*
|
|
* Write raw sectors to a device
|
|
*/
|
|
int DRIVE_RawWrite(BYTE drive, DWORD begin, DWORD nr_sect, BYTE *dataptr, BOOL fake_success)
|
|
{
|
|
int fd;
|
|
|
|
if ((fd = DRIVE_OpenDevice( drive, O_RDONLY )) != -1)
|
|
{
|
|
lseek( fd, begin * 512, SEEK_SET );
|
|
/* FIXME: check errors */
|
|
write( fd, dataptr, nr_sect * 512 );
|
|
close( fd );
|
|
}
|
|
else
|
|
if (!(fake_success))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DRIVE_GetFreeSpace
|
|
*/
|
|
static int DRIVE_GetFreeSpace( int drive, PULARGE_INTEGER size,
|
|
PULARGE_INTEGER available )
|
|
{
|
|
struct statfs info;
|
|
unsigned long long bigsize,bigavail=0;
|
|
|
|
if (!DRIVE_IsValid(drive))
|
|
{
|
|
SetLastError( ERROR_INVALID_DRIVE );
|
|
return 0;
|
|
}
|
|
|
|
/* FIXME: add autoconf check for this */
|
|
#if defined(__svr4__) || defined(_SCO_DS) || defined(__sun)
|
|
if (statfs( DOSDrives[drive].root, &info, 0, 0) < 0)
|
|
#else
|
|
if (statfs( DOSDrives[drive].root, &info) < 0)
|
|
#endif
|
|
{
|
|
FILE_SetDosError();
|
|
WARN_(dosfs)("cannot do statfs(%s)\n", DOSDrives[drive].root);
|
|
return 0;
|
|
}
|
|
|
|
bigsize = (unsigned long long)info.f_bsize
|
|
* (unsigned long long)info.f_blocks;
|
|
#ifdef STATFS_HAS_BAVAIL
|
|
bigavail = (unsigned long long)info.f_bavail
|
|
* (unsigned long long)info.f_bsize;
|
|
#else
|
|
# ifdef STATFS_HAS_BFREE
|
|
bigavail = (unsigned long long)info.f_bfree
|
|
* (unsigned long long)info.f_bsize;
|
|
# else
|
|
# error "statfs has no bfree/bavail member!"
|
|
# endif
|
|
#endif
|
|
size->LowPart = (DWORD)bigsize;
|
|
size->HighPart = (DWORD)(bigsize>>32);
|
|
available->LowPart = (DWORD)bigavail;
|
|
available->HighPart = (DWORD)(bigavail>>32);
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDiskFreeSpace16 (KERNEL.422)
|
|
*/
|
|
BOOL16 WINAPI GetDiskFreeSpace16( LPCSTR root, LPDWORD cluster_sectors,
|
|
LPDWORD sector_bytes, LPDWORD free_clusters,
|
|
LPDWORD total_clusters )
|
|
{
|
|
return GetDiskFreeSpaceA( root, cluster_sectors, sector_bytes,
|
|
free_clusters, total_clusters );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDiskFreeSpace32A (KERNEL32.206)
|
|
*
|
|
* Fails if expression resulting from current drive's dir and "root"
|
|
* is not a root dir of the target drive.
|
|
*
|
|
* UNDOC: setting some LPDWORDs to NULL is perfectly possible
|
|
* if the corresponding info is unneeded.
|
|
*
|
|
* FIXME: needs to support UNC names from Win95 OSR2 on.
|
|
*
|
|
* Behaviour under Win95a:
|
|
* CurrDir root result
|
|
* "E:\\TEST" "E:" FALSE
|
|
* "E:\\" "E:" TRUE
|
|
* "E:\\" "E" FALSE
|
|
* "E:\\" "\\" TRUE
|
|
* "E:\\TEST" "\\" TRUE
|
|
* "E:\\TEST" ":\\" FALSE
|
|
* "E:\\TEST" "E:\\" TRUE
|
|
* "E:\\TEST" "" FALSE
|
|
* "E:\\" "" FALSE (!)
|
|
* "E:\\" 0x0 TRUE
|
|
* "E:\\TEST" 0x0 TRUE (!)
|
|
* "E:\\TEST" "C:" TRUE (when CurrDir of "C:" set to "\\")
|
|
* "E:\\TEST" "C:" FALSE (when CurrDir of "C:" set to "\\TEST")
|
|
*/
|
|
BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
|
|
LPDWORD sector_bytes, LPDWORD free_clusters,
|
|
LPDWORD total_clusters )
|
|
{
|
|
int drive;
|
|
ULARGE_INTEGER size,available;
|
|
LPCSTR path;
|
|
DWORD cluster_sec;
|
|
|
|
if ((!root) || (root == "\\"))
|
|
drive = DRIVE_GetCurrentDrive();
|
|
else
|
|
if ( (strlen(root) >= 2) && (root[1] == ':')) /* root contains drive tag */
|
|
{
|
|
drive = toupper(root[0]) - 'A';
|
|
path = &root[2];
|
|
if (path[0] == '\0')
|
|
path = DRIVE_GetDosCwd(drive);
|
|
else
|
|
if (path[0] == '\\')
|
|
path++;
|
|
if (strlen(path)) /* oops, we are in a subdir */
|
|
return FALSE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
|
|
if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE;
|
|
|
|
/* Cap the size and available at 2GB as per specs. */
|
|
if ((size.HighPart) ||(size.LowPart > 0x7fffffff))
|
|
{
|
|
size.HighPart = 0;
|
|
size.LowPart = 0x7fffffff;
|
|
}
|
|
if ((available.HighPart) ||(available.LowPart > 0x7fffffff))
|
|
{
|
|
available.HighPart =0;
|
|
available.LowPart = 0x7fffffff;
|
|
}
|
|
if (DRIVE_GetType(drive)==TYPE_CDROM) {
|
|
if (sector_bytes)
|
|
*sector_bytes = 2048;
|
|
size.LowPart /= 2048;
|
|
available.LowPart /= 2048;
|
|
} else {
|
|
if (sector_bytes)
|
|
*sector_bytes = 512;
|
|
size.LowPart /= 512;
|
|
available.LowPart /= 512;
|
|
}
|
|
/* fixme: probably have to adjust those variables too for CDFS */
|
|
cluster_sec = 1;
|
|
while (cluster_sec * 65536 < size.LowPart) cluster_sec *= 2;
|
|
|
|
if (cluster_sectors)
|
|
*cluster_sectors = cluster_sec;
|
|
if (free_clusters)
|
|
*free_clusters = available.LowPart / cluster_sec;
|
|
if (total_clusters)
|
|
*total_clusters = size.LowPart / cluster_sec;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDiskFreeSpace32W (KERNEL32.207)
|
|
*/
|
|
BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
|
|
LPDWORD sector_bytes, LPDWORD free_clusters,
|
|
LPDWORD total_clusters )
|
|
{
|
|
LPSTR xroot;
|
|
BOOL ret;
|
|
|
|
xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root);
|
|
ret = GetDiskFreeSpaceA( xroot,cluster_sectors, sector_bytes,
|
|
free_clusters, total_clusters );
|
|
HeapFree( GetProcessHeap(), 0, xroot );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDiskFreeSpaceEx32A (KERNEL32.871)
|
|
*/
|
|
BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root,
|
|
PULARGE_INTEGER avail,
|
|
PULARGE_INTEGER total,
|
|
PULARGE_INTEGER totalfree)
|
|
{
|
|
int drive;
|
|
ULARGE_INTEGER size,available;
|
|
|
|
if (!root) drive = DRIVE_GetCurrentDrive();
|
|
else
|
|
{
|
|
if ((root[1]) && ((root[1] != ':') || (root[2] != '\\')))
|
|
{
|
|
WARN_(dosfs)("invalid root '%s'\n", root );
|
|
return FALSE;
|
|
}
|
|
drive = toupper(root[0]) - 'A';
|
|
}
|
|
if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE;
|
|
/*FIXME: Do we have the number of bytes available to the user? */
|
|
if (totalfree) {
|
|
totalfree->HighPart = size.HighPart;
|
|
totalfree->LowPart = size.LowPart ;
|
|
}
|
|
if (avail) {
|
|
avail->HighPart = available.HighPart;
|
|
avail->LowPart = available.LowPart ;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* GetDiskFreeSpaceEx32W (KERNEL32.873)
|
|
*/
|
|
BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
|
|
PULARGE_INTEGER total,
|
|
PULARGE_INTEGER totalfree)
|
|
{
|
|
LPSTR xroot;
|
|
BOOL ret;
|
|
|
|
xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root);
|
|
ret = GetDiskFreeSpaceExA( xroot, avail, total, totalfree);
|
|
HeapFree( GetProcessHeap(), 0, xroot );
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* GetDriveType16 (KERNEL.136)
|
|
* This functions returns the drivetype of a drive in Win16.
|
|
* Note that it returns DRIVE_REMOTE for CD-ROMs, since MSCDEX uses the
|
|
* remote drive API. The returnvalue DRIVE_REMOTE for CD-ROMs has been
|
|
* verified on Win3.11 and Windows 95. Some programs rely on it, so don't
|
|
* do any pseudo-clever changes.
|
|
*
|
|
* RETURNS
|
|
* drivetype DRIVE_xxx
|
|
*/
|
|
UINT16 WINAPI GetDriveType16(
|
|
UINT16 drive /* [in] number (NOT letter) of drive */
|
|
) {
|
|
TRACE_(dosfs)("(%c:)\n", 'A' + drive );
|
|
switch(DRIVE_GetType(drive))
|
|
{
|
|
case TYPE_FLOPPY: return DRIVE_REMOVABLE;
|
|
case TYPE_HD: return DRIVE_FIXED;
|
|
case TYPE_CDROM: return DRIVE_REMOTE;
|
|
case TYPE_NETWORK: return DRIVE_REMOTE;
|
|
case TYPE_INVALID:
|
|
default: return DRIVE_CANNOTDETERMINE;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDriveType32A (KERNEL32.208)
|
|
*
|
|
* Returns the type of the disk drive specified. If root is NULL the
|
|
* root of the current directory is used.
|
|
*
|
|
* RETURNS
|
|
*
|
|
* Type of drive (from Win32 SDK):
|
|
*
|
|
* DRIVE_UNKNOWN unable to find out anything about the drive
|
|
* DRIVE_NO_ROOT_DIR nonexistand root dir
|
|
* DRIVE_REMOVABLE the disk can be removed from the machine
|
|
* DRIVE_FIXED the disk can not be removed from the machine
|
|
* DRIVE_REMOTE network disk
|
|
* DRIVE_CDROM CDROM drive
|
|
* DRIVE_RAMDISK virtual disk in ram
|
|
*
|
|
* DRIVE_DOESNOTEXIST XXX Not valid return value
|
|
* DRIVE_CANNOTDETERMINE XXX Not valid return value
|
|
*
|
|
* BUGS
|
|
*
|
|
* Currently returns DRIVE_DOESNOTEXIST and DRIVE_CANNOTDETERMINE
|
|
* when it really should return DRIVE_NO_ROOT_DIR and DRIVE_UNKNOWN.
|
|
* Why where the former defines used?
|
|
*
|
|
* DRIVE_RAMDISK is unsupported.
|
|
*/
|
|
UINT WINAPI GetDriveTypeA(LPCSTR root /* String describing drive */)
|
|
{
|
|
int drive;
|
|
TRACE_(dosfs)("(%s)\n", debugstr_a(root));
|
|
|
|
if (NULL == root) drive = DRIVE_GetCurrentDrive();
|
|
else
|
|
{
|
|
if ((root[1]) && (root[1] != ':'))
|
|
{
|
|
WARN_(dosfs)("invalid root '%s'\n", debugstr_a(root));
|
|
return DRIVE_DOESNOTEXIST;
|
|
}
|
|
drive = toupper(root[0]) - 'A';
|
|
}
|
|
switch(DRIVE_GetType(drive))
|
|
{
|
|
case TYPE_FLOPPY: return DRIVE_REMOVABLE;
|
|
case TYPE_HD: return DRIVE_FIXED;
|
|
case TYPE_CDROM: return DRIVE_CDROM;
|
|
case TYPE_NETWORK: return DRIVE_REMOTE;
|
|
case TYPE_INVALID: return DRIVE_DOESNOTEXIST;
|
|
default: return DRIVE_CANNOTDETERMINE;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDriveType32W (KERNEL32.209)
|
|
*/
|
|
UINT WINAPI GetDriveTypeW( LPCWSTR root )
|
|
{
|
|
LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, root );
|
|
UINT ret = GetDriveTypeA( xpath );
|
|
HeapFree( GetProcessHeap(), 0, xpath );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetCurrentDirectory16 (KERNEL.411)
|
|
*/
|
|
UINT16 WINAPI GetCurrentDirectory16( UINT16 buflen, LPSTR buf )
|
|
{
|
|
return (UINT16)GetCurrentDirectoryA( buflen, buf );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetCurrentDirectory32A (KERNEL32.196)
|
|
*
|
|
* Returns "X:\\path\\etc\\".
|
|
*
|
|
* Despite the API description, return required length including the
|
|
* terminating null when buffer too small. This is the real behaviour.
|
|
*/
|
|
UINT WINAPI GetCurrentDirectoryA( UINT buflen, LPSTR buf )
|
|
{
|
|
UINT ret;
|
|
const char *s = DRIVE_GetDosCwd( DRIVE_GetCurrentDrive() );
|
|
|
|
assert(s);
|
|
ret = strlen(s) + 3; /* length of WHOLE current directory */
|
|
if (ret >= buflen) return ret + 1;
|
|
lstrcpynA( buf, "A:\\", MIN( 4, buflen ) );
|
|
if (buflen) buf[0] += DRIVE_GetCurrentDrive();
|
|
if (buflen > 3) lstrcpynA( buf + 3, s, buflen - 3 );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetCurrentDirectory32W (KERNEL32.197)
|
|
*/
|
|
UINT WINAPI GetCurrentDirectoryW( UINT buflen, LPWSTR buf )
|
|
{
|
|
LPSTR xpath = HeapAlloc( GetProcessHeap(), 0, buflen+1 );
|
|
UINT ret = GetCurrentDirectoryA( buflen, xpath );
|
|
lstrcpyAtoW( buf, xpath );
|
|
HeapFree( GetProcessHeap(), 0, xpath );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetCurrentDirectory (KERNEL.412)
|
|
*/
|
|
BOOL16 WINAPI SetCurrentDirectory16( LPCSTR dir )
|
|
{
|
|
return SetCurrentDirectoryA( dir );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetCurrentDirectory32A (KERNEL32.479)
|
|
*/
|
|
BOOL WINAPI SetCurrentDirectoryA( LPCSTR dir )
|
|
{
|
|
int olddrive, drive = DRIVE_GetCurrentDrive();
|
|
|
|
if (!dir) {
|
|
ERR_(file)("(NULL)!\n");
|
|
return FALSE;
|
|
}
|
|
if (dir[0] && (dir[1]==':'))
|
|
{
|
|
drive = tolower( *dir ) - 'a';
|
|
dir += 2;
|
|
}
|
|
|
|
/* WARNING: we need to set the drive before the dir, as DRIVE_Chdir
|
|
sets pTask->curdir only if pTask->curdrive is drive */
|
|
olddrive = drive; /* in case DRIVE_Chdir fails */
|
|
if (!(DRIVE_SetCurrentDrive( drive )))
|
|
return FALSE;
|
|
/* FIXME: what about empty strings? Add a \\ ? */
|
|
if (!DRIVE_Chdir( drive, dir )) {
|
|
DRIVE_SetCurrentDrive(olddrive);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetCurrentDirectory32W (KERNEL32.480)
|
|
*/
|
|
BOOL WINAPI SetCurrentDirectoryW( LPCWSTR dirW )
|
|
{
|
|
LPSTR dir = HEAP_strdupWtoA( GetProcessHeap(), 0, dirW );
|
|
BOOL res = SetCurrentDirectoryA( dir );
|
|
HeapFree( GetProcessHeap(), 0, dir );
|
|
return res;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetLogicalDriveStrings32A (KERNEL32.231)
|
|
*/
|
|
UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
|
|
{
|
|
int drive, count;
|
|
|
|
for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++)
|
|
if (DRIVE_IsValid(drive)) count++;
|
|
if (count * 4 * sizeof(char) <= len)
|
|
{
|
|
LPSTR p = buffer;
|
|
for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
|
|
if (DRIVE_IsValid(drive))
|
|
{
|
|
*p++ = 'a' + drive;
|
|
*p++ = ':';
|
|
*p++ = '\\';
|
|
*p++ = '\0';
|
|
}
|
|
*p = '\0';
|
|
}
|
|
return count * 4 * sizeof(char);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetLogicalDriveStrings32W (KERNEL32.232)
|
|
*/
|
|
UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
|
|
{
|
|
int drive, count;
|
|
|
|
for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++)
|
|
if (DRIVE_IsValid(drive)) count++;
|
|
if (count * 4 * sizeof(WCHAR) <= len)
|
|
{
|
|
LPWSTR p = buffer;
|
|
for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
|
|
if (DRIVE_IsValid(drive))
|
|
{
|
|
*p++ = (WCHAR)('a' + drive);
|
|
*p++ = (WCHAR)':';
|
|
*p++ = (WCHAR)'\\';
|
|
*p++ = (WCHAR)'\0';
|
|
}
|
|
*p = (WCHAR)'\0';
|
|
}
|
|
return count * 4 * sizeof(WCHAR);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetLogicalDrives (KERNEL32.233)
|
|
*/
|
|
DWORD WINAPI GetLogicalDrives(void)
|
|
{
|
|
DWORD ret = 0;
|
|
int drive;
|
|
|
|
for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
|
|
if (DRIVE_IsValid(drive)) ret |= (1 << drive);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetVolumeInformation32A (KERNEL32.309)
|
|
*/
|
|
BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
|
|
DWORD label_len, DWORD *serial,
|
|
DWORD *filename_len, DWORD *flags,
|
|
LPSTR fsname, DWORD fsname_len )
|
|
{
|
|
int drive;
|
|
char *cp;
|
|
|
|
/* FIXME, SetLastErrors missing */
|
|
|
|
if (!root) drive = DRIVE_GetCurrentDrive();
|
|
else
|
|
{
|
|
if ((root[1]) && (root[1] != ':'))
|
|
{
|
|
WARN_(dosfs)("invalid root '%s'\n",root);
|
|
return FALSE;
|
|
}
|
|
drive = toupper(root[0]) - 'A';
|
|
}
|
|
if (!DRIVE_IsValid( drive )) return FALSE;
|
|
if (label)
|
|
{
|
|
lstrcpynA( label, DRIVE_GetLabel(drive), label_len );
|
|
for (cp = label; *cp; cp++);
|
|
while (cp != label && *(cp-1) == ' ') cp--;
|
|
*cp = '\0';
|
|
}
|
|
if (serial) *serial = DRIVE_GetSerialNumber(drive);
|
|
|
|
/* Set the filesystem information */
|
|
/* Note: we only emulate a FAT fs at the present */
|
|
|
|
if (filename_len) {
|
|
if (DOSDrives[drive].flags & DRIVE_SHORT_NAMES)
|
|
*filename_len = 12;
|
|
else
|
|
*filename_len = 255;
|
|
}
|
|
if (flags)
|
|
{
|
|
*flags=0;
|
|
if (DOSDrives[drive].flags & DRIVE_CASE_SENSITIVE)
|
|
*flags|=FS_CASE_SENSITIVE;
|
|
if (DOSDrives[drive].flags & DRIVE_CASE_PRESERVING)
|
|
*flags|=FS_CASE_IS_PRESERVED ;
|
|
}
|
|
if (fsname) {
|
|
/* Diablo checks that return code ... */
|
|
if (DRIVE_GetType(drive)==TYPE_CDROM)
|
|
lstrcpynA( fsname, "CDFS", fsname_len );
|
|
else
|
|
lstrcpynA( fsname, "FAT", fsname_len );
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetVolumeInformation32W (KERNEL32.310)
|
|
*/
|
|
BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label,
|
|
DWORD label_len, DWORD *serial,
|
|
DWORD *filename_len, DWORD *flags,
|
|
LPWSTR fsname, DWORD fsname_len )
|
|
{
|
|
LPSTR xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root );
|
|
LPSTR xvolname = label ? HeapAlloc(GetProcessHeap(),0,label_len) : NULL;
|
|
LPSTR xfsname = fsname ? HeapAlloc(GetProcessHeap(),0,fsname_len) : NULL;
|
|
BOOL ret = GetVolumeInformationA( xroot, xvolname, label_len, serial,
|
|
filename_len, flags, xfsname,
|
|
fsname_len );
|
|
if (ret)
|
|
{
|
|
if (label) lstrcpyAtoW( label, xvolname );
|
|
if (fsname) lstrcpyAtoW( fsname, xfsname );
|
|
}
|
|
HeapFree( GetProcessHeap(), 0, xroot );
|
|
HeapFree( GetProcessHeap(), 0, xvolname );
|
|
HeapFree( GetProcessHeap(), 0, xfsname );
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SetVolumeLabelA (KERNEL32.675)
|
|
*/
|
|
BOOL WINAPI SetVolumeLabelA(LPCSTR rootpath,LPCSTR volname)
|
|
{
|
|
FIXME_(dosfs)("(%s,%s),stub!\n",rootpath,volname);
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SetVolumeLabelW (KERNEL32.676)
|
|
*/
|
|
BOOL WINAPI SetVolumeLabelW(LPCWSTR rootpath,LPCWSTR volname)
|
|
{
|
|
LPSTR xroot, xvol;
|
|
BOOL ret;
|
|
|
|
xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, rootpath);
|
|
xvol = HEAP_strdupWtoA( GetProcessHeap(), 0, volname);
|
|
ret = SetVolumeLabelA( xroot, xvol );
|
|
HeapFree( GetProcessHeap(), 0, xroot );
|
|
HeapFree( GetProcessHeap(), 0, xvol );
|
|
return ret;
|
|
}
|