File read-able check should ignore file creation flags #8
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Flags like O_CREATE and O_TRUNCATE don't actually impact the access that a process can have to an open file. When checking whether a process has read access, all that really matters is that the file isn't opened with O_WRONLY.
mcuadros
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currently you'll get an error when you try to read from a file which was opened
using a mode like O_RDONLY | O_CREATE, because the check for "is this file
read-able" checks for
((flags | O_RDWR) || flags == 0).With this change, all we check for is that the file was not opened with O_WRONLY.
Flags like O_CREATE and O_TRUNCATE don't actually impact the access
that a process can have to an open file. When checking whether
a process has read access, all that really matters is that the
file isn't opened with O_WRONLY.