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Merge branch 'bdutro-o_append-fix'

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Bill Zissimopoulos 2019-10-21 20:14:02 -07:00
commit 5131ed5c01
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1
Contributors.asciidoc
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@ -56,6 +56,7 @@ CONTRIBUTOR LIST
|===
|Ben Rubson |ben.rubson at gmail.com
|Bill Zissimopoulos |billziss at navimatics.com
|Brett Dutro |brett.dutro at gmail.com
|Colin Atkinson (Atakama, https://atakama.com) |colin at atakama.com
|Felix Croes |felix at dworkin.nl
|Francois Karam (KS2, http://www.ks2.fr) |francois.karam at ks2.fr

14
src/dll/fuse/fuse_intf.c
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@ -1026,6 +1026,20 @@ static NTSTATUS fsp_fuse_intf_Open(FSP_FILE_SYSTEM *FileSystem,
}
else
{
/*
* Some Windows applications (notably Go programs) specify FILE_APPEND_DATA without
* FILE_WRITE_DATA when opening files for appending. This caused the WinFsp-FUSE layer
* to erroneously pass O_RDONLY to the FUSE file system in such cases. We add a test
* for FILE_APPEND_DATA to ensure that either O_WRONLY or O_RDWR is specified and that
* the O_APPEND flag is set.
*/
if (GrantedAccess & FILE_APPEND_DATA)
{
if (fi.flags == 0)
fi.flags = 1; /* need O_WRONLY as a bare minimum in order to append */
fi.flags |= 8/*O_APPEND*/;
}
if (0 != f->ops.open)
{
err = f->ops.open(contexthdr->PosixPath, &fi);