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Make stat() work on device files again.

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FileDescriptor will now keep a pointer to the original inode even after
opening it resolves to a character device.

Fixed up /bin/ls to display major and minor device numbers instead of size
for device files.
This commit is contained in:
Andreas Kling 2019-01-31 05:05:57 +01:00
parent c3cc318028
commit c4fce9b3f9
8 changed files with 25 additions and 10 deletions
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4
LibC/sys/stat.h
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@ -9,4 +9,8 @@ mode_t umask(mode_t);
int chmod(const char* pathname, mode_t);
int mkdir(const char* pathname, mode_t);
inline dev_t makedev(unsigned int major, unsigned int minor) { return (minor & 0xffu) | (major << 8u) | ((minor & ~0xffu) << 12u); }
inline unsigned int major(dev_t dev) { return (dev & 0xfff00u) >> 8u; }
inline unsigned int minor(dev_t dev) { return (dev & 0xffu) | ((dev >> 12u) & 0xfff00u); }
__END_DECLS