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Kernel: Separate VFS stat() from open().

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It was very confusing that you had to open a FileDescriptor in order to stat
a file. This patch gives VFS a separate stat() function and uses it to
implement the stat() and lstat() syscalls.
This commit is contained in:
Andreas Kling
2019-02-21 16:09:12 +01:00
parent f5f136931a
commit ce3b548077
3 changed files with 20 additions and 8 deletions
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10
Kernel/Process.cpp
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@@ -1217,10 +1217,9 @@ int Process::sys$lstat(const char* path, stat* statbuf)
if (!validate_write_typed(statbuf))
return -EFAULT;
int error;
auto descriptor = VFS::the().open(move(path), error, O_NOFOLLOW_NOERROR | O_DONT_OPEN_DEVICE, 0, *cwd_inode());
if (!descriptor)
if (!VFS::the().stat(move(path), error, O_NOFOLLOW_NOERROR, *cwd_inode(), *statbuf))
return error;
return descriptor->fstat(statbuf);
return 0;
}
int Process::sys$stat(const char* path, stat* statbuf)
@@ -1228,10 +1227,9 @@ int Process::sys$stat(const char* path, stat* statbuf)
if (!validate_write_typed(statbuf))
return -EFAULT;
int error;
auto descriptor = VFS::the().open(move(path), error, O_DONT_OPEN_DEVICE, 0, *cwd_inode());
if (!descriptor)
if (!VFS::the().stat(move(path), error, 0, *cwd_inode(), *statbuf))
return error;
return descriptor->fstat(statbuf);
return 0;
}
int Process::sys$readlink(const char* path, char* buffer, size_t size)