was to hide command line arguments from the process list. It had
been broken (would segfault during the second scan) since before May
2009 until February 2010 and was rarely used. The fact that it was
broken was reported by Juan Carlos Castro y Castro.
See http://seclists.org/nmap-dev/2009/q2/464 and
http://seclists.org/nmap-dev/2010/q1/688 for report and discussion.
properly so our signal handing code actually activates. But our signal
handling code was a bit questionable in many respects, so I removed most
of it under the theory that it hasn't been working for years and nobody
seemed to notice/care, so we presumably don't really need it. And if we
do decide to add it again, we basically will need to do it over because
we now want to do it safely from a reentrancy perspective. In particular,
I removed sigdie() and reaper(). We still have a few signal() calls. In
particular, we ignore SIGPIPE and we set SIGINT, SIGTERM, SIGHUP, and
SIGSEGV to the defaults (SIG_DFL) explicitly. Thanks to Ithilgore, Luis,
and Solar Designer in particular for fidning or commenting on the issue.
"\n" from a few error() calls. Changed a few f?printf() calls to
error() or log_write().
Most notably, I didn't change any of the --interactive printf()s or
the usage printf() call.
I think we should draw up some internal notes on when to use
LOG_STDOUT versus LOG_PLAIN versus all the other LOG_* options.
