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Kernel+Userland: Add symlink() syscall and add "-s" flag to /bin/ln.

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It's now possible to create symbolic links! :^)

This exposed an issue in Ext2FS where we'd write uninitialized data past
the end of an inode's content. Fix this by zeroing out the tail end of
the last block in a file.
This commit is contained in:
Andreas Kling 2019-03-02 01:50:34 +01:00
commit 2c5a378ccc
Notes: sideshowbarker 2024-07-19 15:34:16 +09:00
10 changed files with 106 additions and 12 deletions
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9
Kernel/Process.cpp
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@ -2144,6 +2144,15 @@ int Process::sys$unlink(const char* pathname)
return VFS::the().unlink(String(pathname), cwd_inode());
}
int Process::sys$symlink(const char* target, const char* linkpath)
{
if (!validate_read_str(target))
return -EFAULT;
if (!validate_read_str(linkpath))
return -EFAULT;
return VFS::the().symlink(String(target), String(linkpath), cwd_inode());
}
int Process::sys$rmdir(const char* pathname)
{
if (!validate_read_str(pathname))