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AMIGAOS4: Make isReadable return false for non-existent files

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This also properly initializes _bIsValid for non-existent files.
For consistency, isWritable() is changed analogously to isReadable(),
even though it should not lead to changes in behaviour.
This commit is contained in:
Willem Jan Palenstijn 2014-01-22 22:51:44 +01:00
parent 3fd28f31a7
commit 58aaef33c1
1 changed files with 7 additions and 0 deletions
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7
backends/fs/amigaos4/amigaos4-fs.cpp
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@ -81,6 +81,7 @@ AmigaOSFilesystemNode::AmigaOSFilesystemNode(const Common::String &p) {
_sDisplayName = ::lastPathComponent(_sPath);
_pFileLock = 0;
_bIsDirectory = false;
_bIsValid = false;
// Check whether the node exists and if it is a directory
struct ExamineData * pExd = IDOS->ExamineObjectTags(EX_StringNameInput,_sPath.c_str(),TAG_END);
@ -332,6 +333,9 @@ AbstractFSNode *AmigaOSFilesystemNode::getParent() const {
}
bool AmigaOSFilesystemNode::isReadable() const {
if (!_bIsValid)
return false;
// Regular RWED protection flags are low-active or inverted, thus the negation.
// moreover pseudo root filesystem (null _pFileLock) is readable whatever the
// protection says
@ -341,6 +345,9 @@ bool AmigaOSFilesystemNode::isReadable() const {
}
bool AmigaOSFilesystemNode::isWritable() const {
if (!_bIsValid)
return false;
// Regular RWED protection flags are low-active or inverted, thus the negation.
// moreover pseudo root filesystem (null _pFileLock) is never writable whatever
// the protection says (because of the pseudo nature)