Read-only support

[kriswebdev]

Hello,

Please correct this terrible bug in encfs/encfs/compatwin.cpp

HANDLE f = CreateFileW(fn.c_str(), flags == O_RDONLY ? GENERIC_WRITE : GENERIC_WRITE|GENERIC_READ, FILE_SHARE_DELETE|FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);

MUST BE :

HANDLE f = CreateFileW(fn.c_str(), flags == O_RDONLY ? GENERIC_READ : GENERIC_WRITE|GENERIC_READ, FILE_SHARE_DELETE|FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);

Of course, if it's a read-only file, we're not going to open it write-only.

Also, there's a bug in dokany flags conversion, see link below.

EDIT: I've created a fork that fixes this issue: https://github.com/kriswebdev/encfs4win-reloaded