[Bug 188369] Review Request: ctapi-cyberjack

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Summary: Review Request: ctapi-cyberjack


https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=188369





------- Additional Comments From frank-buettner at gmx.net  2006-05-01 08:17 EST -------
The standart says noting about the the place of the libs.
But /usr/lib/ctapi will be an solution. Normaly the ctapi libs will live under
/usr/lib. The apps will normale only call dlopen(XX). XX=name of the lib.
When put the files to /usr/lib/ctapi then there we have the next problem.
Here the part of the doc about the dload function of the C lib about the search
path:
- (ELF only) If the executable file for the calling program contains a DT_RPATH
tag, and does not contain a DT_RUNPATH tag, then the directories listed in the
DT_RPATH tag are searched.
- If the environment variable LD_LIBRARY_PATH is defined to  contain  a 
colon-separated list of directories, then these are searched.  (As a security
measure this variable is ignored for set-UID and set-GID programs.)
- (ELF only) If the executable file for the calling program contains a 
DT_RUNPATH  tag, then the directories listed in that tag are searched.
-  The  cache file /etc/ld.so.cache (maintained by ldconfig(8)) is checked to
see whether  it contains an entry for filename.
- The directories /lib and /usr/lib are searched (in that order).
When the files are in /usr/lib/ctapi the the apps will not find it without set
an global LD_LIBRARY_PATH. Or we simple add the files to /usr/lib/ctapi and put
an extra config file to /etc/ld.so.conf.d But this have the problem the each
ctapi driver muste create an extra dir.
example:
/usr/lib/ctapi/ReinerSCT/libctapi-cyberjack.so
/usr/lib/ctapi/Kobil/libctapi-XXXX.so
/usr/lib/ctapi/ZZ/libctapi-XXX.so
ZZ= maufacture of the device
XXX= produce name
I think before I can work forwart we must found an global solution for CT-API in
Fedora. 
Here the link to the offical CT-API doc:
In german:
http://www.teletrust.de/index.php?id=303
In english:
http://www.teletrust.de/index.php?id=548
In my package the are 2 sample apps that use this API.

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