o stay_setuid - sudo will remain setuid if system has saved uids or setreuid(2)
o env_reset - reset the environment to a sane default
o env_keep - preserve environment variables that would otherwise be cleared
No longer use getenv/putenv/setenv functions--do environment munging by hand.
Potentially dangerous environment variables can be cleared only if they
contain '/' pr '%' characters to protect buggy programs.
Moved environment routines into env.c (new file)
error if it does not exist.
The path to the editor for visudo is now a colon-separated list of
allowable editors. If the user has $EDITOR set and it matches
one of the allowed editors that editor will be used. If not,
the first editor in the list that actually exists is used.
Michael D. Marchionna.
configure now does substitution on the man pages, allowing us to
fix up the paths and set the section correctly. Based on an idea
from Michael D. Marchionna.
This means that visudo will now parse the sudoers file *before* it is
edited so a bogus sudoers file will cause a warning to go to stderr.
Also, visudo checks the variables once--it does not check them after
each editor run since that could be confusing.
be set before sudoers is parsed.
o Fix the "set_home" sudoers option (only worked at compile time).
o Fix "fqdn" sudoers option. We now set host/shost via set_fqdn which
gets called when the "fqdn" option is set in sudoers.
o Move the openlog() to store_syslogfac() so this gets overridden
correctly from the sudoers file.
