Supplied changelog for resize inode patch.

[tools/e2fsprogs.git] / lib / ext2fs / getsize.c

diff --git a/lib/ext2fs/getsize.c b/lib/ext2fs/getsize.c
index 39e471f..ad7ac1c 100644 (file)
--- a/lib/ext2fs/getsize.c
+++ b/lib/ext2fs/getsize.c
@@ -23,23 +23,34 @@
 #include <errno.h>
 #endif
 #include <fcntl.h>
-#ifdef HAVE_LINUX_FD_H
+#ifdef HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
+#endif
+#ifdef HAVE_LINUX_FD_H
 #include <linux/fd.h>
 #endif
 #ifdef HAVE_SYS_DISKLABEL_H
-#include <sys/ioctl.h>
 #include <sys/disklabel.h>
-#endif /* HAVE_SYS_DISKLABEL_H */
+#endif
+#ifdef HAVE_SYS_DISK_H
+#ifdef HAVE_SYS_QUEUE_H
+#include <sys/queue.h> /* for LIST_HEAD */
+#endif
+#include <sys/disk.h>
+#endif
+#ifdef __linux__
+#include <sys/utsname.h>
+#endif
 
 #if defined(__linux__) && defined(_IO) && !defined(BLKGETSIZE)
 #define BLKGETSIZE _IO(0x12,96)        /* return device size */
 #endif
 
-#ifdef APPLE_DARWIN
-#include <sys/ioctl.h>
-#include <sys/disk.h>
+#if defined(__linux__) && defined(_IOR) && !defined(BLKGETSIZE64)
+#define BLKGETSIZE64 _IOR(0x12,114,size_t)     /* return device size in bytes (u64 *arg) */
+#endif
 
+#ifdef APPLE_DARWIN
 #define BLKGETSIZE DKIOCGETBLOCKCOUNT32
 #endif /* APPLE_DARWIN */
 
@@ -50,6 +61,10 @@
 #include "windows.h"
 #include "winioctl.h"
 
+#if (_WIN32_WINNT >= 0x0500)
+#define HAVE_GET_FILE_SIZE_EX 1
+#endif
+
 errcode_t ext2fs_get_device_size(const char *file, int blocksize,
                                 blk_t *retblocks)
 {
@@ -57,6 +72,11 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
        PARTITION_INFORMATION pi;
        DISK_GEOMETRY gi;
        DWORD retbytes;
+#ifdef HAVE_GET_FILE_SIZE_EX
+       LARGE_INTEGER filesize;
+#else
+       DWORD filesize;
+#endif /* HAVE_GET_FILE_SIZE_EX */
 
        dev = CreateFile(file, GENERIC_READ, 
                         FILE_SHARE_READ | FILE_SHARE_WRITE ,
@@ -80,7 +100,19 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
                             gi.SectorsPerTrack *
                             gi.TracksPerCylinder *
                             gi.Cylinders.QuadPart / blocksize;
+
+#ifdef HAVE_GET_FILE_SIZE_EX
+       } else if (GetFileSizeEx(dev, &filesize)) {
+               *retblocks = filesize.QuadPart / blocksize;
        }
+#else
+       } else {
+               filesize = GetFileSize(dev, NULL);
+               if (INVALID_FILE_SIZE != filesize) {
+                       *retblocks = filesize / blocksize;
+               }
+       }
+#endif /* HAVE_GET_FILE_SIZE_EX */
 
        CloseHandle(dev);
        return 0;
@@ -106,9 +138,12 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
                                 blk_t *retblocks)
 {
        int     fd;
-#ifdef BLKGETSIZE
-       unsigned long   size;
+       int valid_blkgetsize64 = 1;
+#ifdef __linux__
+       struct          utsname ut;
 #endif
+       unsigned long long size64;
+       unsigned long   size;
        ext2_loff_t high, low;
 #ifdef FDGETPRM
        struct floppy_struct this_floppy;
@@ -128,6 +163,35 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
        if (fd < 0)
                return errno;
 
+#ifdef DKIOCGETBLOCKCOUNT      /* For Apple Darwin */
+       if (ioctl(fd, DKIOCGETBLOCKCOUNT, &size64) >= 0) {
+               if ((sizeof(*retblocks) < sizeof(unsigned long long))
+                   && ((size64 / (blocksize / 512)) > 0xFFFFFFFF))
+                       return EFBIG;
+               close(fd);
+               *retblocks = size64 / (blocksize / 512);
+               return 0;
+       }
+#endif
+
+#ifdef BLKGETSIZE64
+#ifdef __linux__
+       if ((uname(&ut) == 0) &&
+           ((ut.release[0] == '2') && (ut.release[1] == '.') &&
+            (ut.release[2] < '6') && (ut.release[3] == '.')))
+               valid_blkgetsize64 = 0;
+#endif
+       if (valid_blkgetsize64 &&
+           ioctl(fd, BLKGETSIZE64, &size64) >= 0) {
+               if ((sizeof(*retblocks) < sizeof(unsigned long long))
+                   && ((size64 / blocksize) > 0xFFFFFFFF))
+                       return EFBIG;
+               close(fd);
+               *retblocks = size64 / blocksize;
+               return 0;
+       }
+#endif
+
 #ifdef BLKGETSIZE
        if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
                close(fd);
@@ -135,6 +199,7 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
                return 0;
        }
 #endif
+
 #ifdef FDGETPRM
        if (ioctl(fd, FDGETPRM, &this_floppy) >= 0) {
                close(fd);
@@ -142,7 +207,19 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
                return 0;
        }
 #endif
+
 #ifdef HAVE_SYS_DISKLABEL_H
+#if defined(DIOCGMEDIASIZE)
+       {
+           off_t ms;
+           u_int bs;
+           if (ioctl(fd, DIOCGMEDIASIZE, &ms) >= 0) {
+               *retblocks = ms / blocksize;
+               return 0;
+           }
+       }
+#elif defined(DIOCGDINFO)
+       /* old disklabel interface */
        part = strlen(file) - 1;
        if (part >= 0) {
                ch = file[part];
@@ -161,6 +238,7 @@ errcode_t ext2fs_get_device_size(const char *file, int blocksize,
                        return 0;
                }
        }
+#endif /* defined(DIOCG*) */
 #endif /* HAVE_SYS_DISKLABEL_H */
 
        /*