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Introduce ZEEK_SEED_VALUES environment variable

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For "individually different but deterministic" runs specifying Zeek's
seed as an environment variable eases setups as one can avoid creating
extra seed files for each of the individual processes.

It is an error to specify the new ZEEK_SEED_VALUES variable together
with the existing ZEEK_SEED_FILE and -G. ZEEK_SEED takes precedence over
deterministic mode (-D) like ZEEK_SEED_FILE does today already.
This commit is contained in:
Arne Welzel 2023-05-12 19:45:37 +02:00
parent b98ae9bdb2
commit b2d934226f
9 changed files with 134 additions and 8 deletions
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2
src/Options.cc
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@ -166,6 +166,8 @@ void usage(const char* prog, int code)
util::zeek_prefixes().c_str());
fprintf(stderr, " $ZEEK_DNS_FAKE | disable DNS lookups (%s)\n",
fake_dns() ? "on" : "off");
fprintf(stderr, " $ZEEK_SEED_VALUES | list of space separated seeds (%s)\n",
getenv("ZEEK_SEED_VALUES") ? "set" : "not set");
fprintf(stderr, " $ZEEK_SEED_FILE | file to load seeds from (not set)\n");
fprintf(stderr, " $ZEEK_LOG_SUFFIX | ASCII log file extension (.%s)\n",
logging::writer::detail::Ascii::LogExt().c_str());