[OpenAFS-devel] parsing program options from config file(s)

[Derrick Brashear]

Gerrit 7903 adds 2 krb5 profile-style config files,
openafs-client.conf (in client's etc dir e.g. /usr/vice/etc) and
openafs-server.conf (in server's etc dir e.g. /usr/afs/etc)

We agreed at the hackathon to eventually support configuration in these:
http://wiki.openafs.org/AFSLore/hackathon_pittsburgh_2011/

this does not go far in that direction. for the moment it is limited
to option support, replacing (well, actually,
supplementing, and that's important) command line switches.

For instance, openafs-client.conf on a Mac using a non-standard cache might be:
[afsd]
        dynroot = true
        afsdb = true
        fakestat-all = true
        daemons = 8
        volumes = 70
        chunksize = 18
        stat = 5000
        dcache = 800
        cachedir = /Library/Caches/org.openafs.filesystems.afs

Continuing to parse command line switches allows additional options to
be set, which allows things like
afsd -shutdown to still work.

Because previous work has already made ptserver, vlserver, fileserver
and afsd able to support this (conversion
from hand-parsed command lines to cmd_OptionAsXXX) initial support is
provided there. Anyone willing to convert
volserver and bosserver? Comments welcome, if there are specific code
complaints, stick them in gerrit.


-- 
Derrick