should libpng1.dll and zlib.dll bee update ?

General discussion about Celestia that doesn't fit into other forums.
Guest

should libpng1.dll and zlib.dll bee update ?

Post #1by Guest » 28.09.2002, 10:53

I've seen that zlib.dll is version 1.1.3 and libpng1.dll is version 1.0.9 in the latest version of celestia

Should we or you update that lib ?
the latest version of zlib package is 1.1.4
http://www.gzip.org/zlib
the latest version of libpng is 1.2.4
http://sourceforge.net/project/showfile ... up_id=5624

Darkmiss
Posts: 1059
Joined: 20.08.2002
With us: 22 years 3 months
Location: London, England

Post #2by Darkmiss » 29.09.2002, 00:00

Ill wait to hear from Chris, as to weather this might cause problems,
before I replace the Lib's.

What would be the advantage of these updated versions anyway :?:
CPU- Intel Pentium Core 2 Quad ,2.40GHz
RAM- 2Gb 1066MHz DDR2
Motherboard- Gigabyte P35 DQ6
Video Card- Nvidia GeForce 8800 GTS + 640Mb
Hard Drives- 2 SATA Raptor 10000rpm 150GB
OS- Windows Vista Home Premium 32

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selden
Developer
Posts: 10192
Joined: 04.09.2002
With us: 22 years 3 months
Location: NY, USA

Post #3by selden » 29.09.2002, 15:09

zlib v1.1.4 fixes a security bug in 1.1.3: some compressed data will cause it to crash the program calling it. This can cause problems on multi-user systems. See the zlib home page for details. They urge relinking the applicaion program against the new library. http://www.gzip.org/zlib/

libpng uses zlib. The newer versions of libpng also have quite a few patches to improve reading of marginally compliant png files.

Simply replacing the dlls *should* work (that's one of the reasons for making them dynamically loadable), but I'd rather wait for Chris to rebuild Celestia with the new versions.
Selden


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