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Kernel: Add file permission checks to utime() syscall.

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This commit is contained in:
Andreas Kling 2019-02-21 16:37:41 +01:00
parent f0a869ea50
commit a624fe06b8
3 changed files with 27 additions and 12 deletions
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15
Kernel/Process.cpp
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@ -1125,14 +1125,6 @@ int Process::sys$utime(const char* pathname, const utimbuf* buf)
return -EFAULT;
if (buf && !validate_read_typed(buf))
return -EFAULT;
String path(pathname);
int error;
auto descriptor = VFS::the().open(move(path), error, 0, 0, cwd_inode());
if (!descriptor)
return error;
auto& inode = *descriptor->inode();
if (inode.fs().is_readonly())
return -EROFS;
time_t atime;
time_t mtime;
if (buf) {
@ -1143,11 +1135,10 @@ int Process::sys$utime(const char* pathname, const utimbuf* buf)
mtime = now;
atime = now;
}
error = inode.set_atime(atime);
if (error)
int error;
if (!VFS::the().utime(String(pathname), error, cwd_inode(), atime, mtime))
return error;
error = inode.set_mtime(mtime);
return error;
return 0;
}
int Process::sys$access(const char* pathname, int mode)