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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
parent 37f6844c6c
commit 2c5a378ccc
10 changed files with 106 additions and 12 deletions
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2
Kernel/Syscall.cpp
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@ -193,6 +193,8 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
return current->sys$link((const char*)arg1, (const char*)arg2);
case Syscall::SC_unlink:
return current->sys$unlink((const char*)arg1);
case Syscall::SC_symlink:
return current->sys$symlink((const char*)arg1, (const char*)arg2);
case Syscall::SC_read_tsc:
return current->sys$read_tsc((dword*)arg1, (dword*)arg2);
case Syscall::SC_rmdir: