Put the interesting parts of XZ Utils into the public domain.

Some minor documentation cleanups were made at the same time.

23 files changed, 69 insertions, 230 deletions

diff --git a/src/xz/Makefile.am b/src/xz/Makefile.am
index 02dd8357..63d58728 100644
--- a/src/xz/Makefile.am
+++ b/src/xz/Makefile.am
@@ -1,15 +1,8 @@
 ##
-##  Copyright (C) 2007 Lasse Collin
+## Author: Lasse Collin
 ##
-##  This program is free software; you can redistribute it and/or
-##  modify it under the terms of the GNU Lesser General Public
-##  License as published by the Free Software Foundation; either
-##  version 2.1 of the License, or (at your option) any later version.
-##
-##  This program is distributed in the hope that it will be useful,
-##  but WITHOUT ANY WARRANTY; without even the implied warranty of
-##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-##  Lesser General Public License for more details.
+## This file has been put into the public domain.
+## You can do whatever you want with this file.
 ##
 
 bin_PROGRAMS = xz
diff --git a/src/xz/args.c b/src/xz/args.c
index f8732000..5a6d177b 100644
--- a/src/xz/args.c
+++ b/src/xz/args.c
@@ -5,17 +5,10 @@
 ///
 /// \note       Filter-specific options parsing is in options.c.
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/args.h b/src/xz/args.h
index b07b2100..91e43ad6 100644
--- a/src/xz/args.h
+++ b/src/xz/args.h
@@ -3,17 +3,10 @@
 /// \file       args.h
 /// \brief      Argument parsing
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/hardware.c b/src/xz/hardware.c
index 0695ccb1..8d206b2e 100644
--- a/src/xz/hardware.c
+++ b/src/xz/hardware.c
@@ -3,17 +3,10 @@
 /// \file       hardware.c
 /// \brief      Detection of available hardware resources
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/hardware.h b/src/xz/hardware.h
index 36761fd1..136aab9e 100644
--- a/src/xz/hardware.h
+++ b/src/xz/hardware.h
@@ -3,17 +3,10 @@
 /// \file       hardware.h
 /// \brief      Detection of available hardware resources
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/io.c b/src/xz/io.c
index 5ee84a95..d8eb5f06 100644
--- a/src/xz/io.c
+++ b/src/xz/io.c
@@ -3,17 +3,10 @@
 /// \file       io.c
 /// \brief      File opening, unlinking, and closing
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/io.h b/src/xz/io.h
index 87cfdac2..c10554ad 100644
--- a/src/xz/io.h
+++ b/src/xz/io.h
@@ -3,17 +3,10 @@
 /// \file       io.h
 /// \brief      I/O types and functions
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/list.c b/src/xz/list.c
index 8728d47b..ba298e43 100644
--- a/src/xz/list.c
+++ b/src/xz/list.c
@@ -3,17 +3,10 @@
 /// \file       list.c
 /// \brief      Listing information about .lzma files
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/main.c b/src/xz/main.c
index 8e707fb0..0afd9ff7 100644
--- a/src/xz/main.c
+++ b/src/xz/main.c
@@ -3,17 +3,10 @@
 /// \file       main.c
 /// \brief      main()
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/main.h b/src/xz/main.h
index 2d6419ad..b90102b4 100644
--- a/src/xz/main.h
+++ b/src/xz/main.h
@@ -3,17 +3,10 @@
 /// \file       main.h
 /// \brief      Miscellanous declarations
 //
-//  Copyright (C) 2008 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/message.c b/src/xz/message.c
index ae9b590e..971305ba 100644
--- a/src/xz/message.c
+++ b/src/xz/message.c
@@ -3,17 +3,10 @@
 /// \file       message.c
 /// \brief      Printing messages to stderr
 //
-//  Copyright (C) 2007-2008 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/message.h b/src/xz/message.h
index 24f259c9..16e38b75 100644
--- a/src/xz/message.h
+++ b/src/xz/message.h
@@ -3,17 +3,10 @@
 /// \file       message.h
 /// \brief      Printing messages to stderr
 //
-//  Copyright (C) 2007-2008 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/options.c b/src/xz/options.c
index efceba9e..ea52a595 100644
--- a/src/xz/options.c
+++ b/src/xz/options.c
@@ -3,17 +3,10 @@
 /// \file       options.c
 /// \brief      Parser for filter-specific options
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/options.h b/src/xz/options.h
index 3835d12a..426086bd 100644
--- a/src/xz/options.h
+++ b/src/xz/options.h
@@ -3,17 +3,10 @@
 /// \file       options.h
 /// \brief      Parser for filter-specific options
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/private.h b/src/xz/private.h
index 21c3559a..1ed37cd0 100644
--- a/src/xz/private.h
+++ b/src/xz/private.h
@@ -3,17 +3,10 @@
 /// \file       private.h
 /// \brief      Common includes, definions, and prototypes
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/process.c b/src/xz/process.c
index fbdfbb32..4e682d7d 100644
--- a/src/xz/process.c
+++ b/src/xz/process.c
@@ -3,17 +3,10 @@
 /// \file       process.c
 /// \brief      Compresses or uncompresses a file
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/process.h b/src/xz/process.h
index 709f287d..0a805e2c 100644
--- a/src/xz/process.h
+++ b/src/xz/process.h
@@ -3,17 +3,10 @@
 /// \file       process.h
 /// \brief      Compresses or uncompresses a file
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/signals.c b/src/xz/signals.c
index f19f3f9b..c9acab26 100644
--- a/src/xz/signals.c
+++ b/src/xz/signals.c
@@ -3,17 +3,10 @@
 /// \file       signals.c
 /// \brief      Handling signals to abort operation
 //
-//  Copyright (C) 2007-2009 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/signals.h b/src/xz/signals.h
index d963a416..48945b22 100644
--- a/src/xz/signals.h
+++ b/src/xz/signals.h
@@ -3,17 +3,10 @@
 /// \file       signals.h
 /// \brief      Handling signals to abort operation
 //
-//  Copyright (C) 2007-2009 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/suffix.c b/src/xz/suffix.c
index aff4d6d6..f9052832 100644
--- a/src/xz/suffix.c
+++ b/src/xz/suffix.c
@@ -3,17 +3,10 @@
 /// \file       suffix.c
 /// \brief      Checks filename suffix and creates the destination filename
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/suffix.h b/src/xz/suffix.h
index 623d9681..5537d732 100644
--- a/src/xz/suffix.h
+++ b/src/xz/suffix.h
@@ -3,17 +3,10 @@
 /// \file       suffix.h
 /// \brief      Checks filename suffix and creates the destination filename
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/util.c b/src/xz/util.c
index e1716bcb..9843c044 100644
--- a/src/xz/util.c
+++ b/src/xz/util.c
@@ -3,17 +3,10 @@
 /// \file       util.c
 /// \brief      Miscellaneous utility functions
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/xz/util.h b/src/xz/util.h
index 8b4bc3f8..511d2ee9 100644
--- a/src/xz/util.h
+++ b/src/xz/util.h
@@ -3,17 +3,10 @@
 /// \file       util.h
 /// \brief      Miscellaneous utility functions
 //
-//  Copyright (C) 2007 Lasse Collin
+//  Author:     Lasse Collin
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////