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| author | Tony Cook <tony@develop-help.com> | 2016-12-08 09:38:55 +1100 |
|---|---|---|
| committer | Tony Cook <tony@develop-help.com> | 2017-09-11 10:59:43 +1000 |
| commit | d62950713a9b1969a52015f065537f4a2cc224f3 (patch) | |
| tree | e9808532fdccef3815b692898882118256d20738 /pod/perlrun.pod | |
| parent | 929344c06d753c7727ddb290d2b5b2dd62462cc5 (diff) | |
| download | perl-d62950713a9b1969a52015f065537f4a2cc224f3.tar.gz | |
(perl #127663) provide limited control for the internal drand48()
perl can be built without PERL_INTERNAL_RAND_SEED support to reduce
it's attack surface.
Diffstat (limited to 'pod/perlrun.pod')
| -rw-r--r-- | pod/perlrun.pod | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/pod/perlrun.pod b/pod/perlrun.pod index f32c8edc98..b5e4c06517 100644 --- a/pod/perlrun.pod +++ b/pod/perlrun.pod @@ -1392,6 +1392,18 @@ X<SYS$LOGIN> Used if chdir has no argument and HOME and LOGDIR are not set. +=item PERL_INTERNAL_RAND_SEED +X<PERL_INTERNAL_RAND_SEED> + +Set to a non-negative integer to seed the random number generator used +internally by perl for a variety of purposes. + +Ignored if perl is run setuid or setgid. Used only for some limited +startup randomization (hash keys) if C<-T> or C<-t> perl is started +with tainting enabled. + +Perl may be built to ignore this variable. + =back Perl also has environment variables that control how Perl handles data |