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updated for version 7.3.172

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Problem:    MS-Windows: rename() might delete the file if the name differs but
            it's actually the same file.
Solution:   Use the file handle to check if it's the same file. (Yukihiro
            Nakadaira)
This commit is contained in:
Bram Moolenaar
2011-05-05 16:41:24 +02:00
parent 85de20665f
commit 1c32dff7d6
6 changed files with 59 additions and 20 deletions
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15
src/fileio.c
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@@ -6555,6 +6555,21 @@ vim_rename(from, to)
use_tmp_file = TRUE;
}
#endif
#ifdef WIN3264
{
BY_HANDLE_FILE_INFORMATION info1, info2;
/* It's possible for the source and destination to be the same file.
* In that case go through a temp file name. This makes rename("foo",
* "./foo") a no-op (in a complicated way). */
if (win32_fileinfo(from, &info1) == FILEINFO_OK
&& win32_fileinfo(to, &info2) == FILEINFO_OK
&& info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber
&& info1.nFileIndexHigh == info2.nFileIndexHigh
&& info1.nFileIndexLow == info2.nFileIndexLow)
use_tmp_file = TRUE;
}
#endif
#if defined(UNIX) || defined(CASE_INSENSITIVE_FILENAME)
if (use_tmp_file)