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read rng seed from random number source device

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Linux and BSD system have random number source devices that can be used
as source for a unguessable seed source.

Other platforms fall back to generate the seed with gettime().
This commit is contained in:
Patric Mueller
2019-01-11 19:08:22 +01:00
parent 1083971228
commit 86d694c61b
4 changed files with 56 additions and 13 deletions
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3
include/extern.h
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@@ -925,7 +925,8 @@ E char *FDECL(strstri, (const char *, const char *));
#endif
E boolean
FDECL(fuzzymatch, (const char *, const char *, const char *, BOOLEAN_P));
E void NDECL(setrandom);
E void NDECL(init_random);
E void NDECL(reseed_random);
E time_t NDECL(getnow);
E int NDECL(getyear);
#if 0