Bogus qf Files
For security reasons, V8 sendmail
performs a number of checks on each qf file before trusting its contents. If
any qf file fails to be
trustworthy, sendmail converts the
leading q in its name to
an uppercase Q.[186] We discuss each possible problem in the sections
that follow.
Note that when sendmail renames a
qf file into a
Qf file, it logs
that it did so. In the following,
qffile is the full path
and filename of the qf
file, before it was renamed:
Losing qffile: reason here
Also note that although sendmail checks
the qf file for a number
of plausible errors, its checking is by no means exhaustive.
The checks we describe here are no substitute for a
well-managed system.
[186] * This letter might
change from a Q
to a different letter in the future.
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