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Implement basic chmod() syscall and /bin/chmod helper.

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Only raw octal modes are supported right now.
This patch also changes mode_t from 32-bit to 16-bit to match the on-disk
type used by Ext2FS.

I also ran into EPERM being errno=0 which was confusing, so I inserted an
ESUCCESS in its place.
This commit is contained in:
Andreas Kling 2019-01-29 04:55:08 +01:00
parent ad53f6afd3
commit c30e2c8d44
22 changed files with 156 additions and 4 deletions
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Kernel/Ext2FileSystem.h
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@ -41,6 +41,7 @@ private:
virtual int increment_link_count() override;
virtual int decrement_link_count() override;
virtual size_t directory_entry_count() const override;
virtual bool chmod(mode_t, int& error) override;
void populate_lookup_cache() const;