Thread: need licensing help!

i want to publish source code under these conditions:
* code can be used in other projects (commercial too, naming original author not required)
* people including my code do NOT have to release their final code
* source-mods must be marked as such
* someone must not say he did my work

gpl/lgpl/mpl force code availabilty which i don't want.
what can/should i choose?

bsd?
mit?
zlib?


any advice/suggestions?

zlib seems to be exactly what you want:

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.