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* seedrng: fix for glibc <= 2.24 not providing random headerThomas Devoogdt2023-04-111-4/+10
| | | | | | | | | | - dropped the wrong define (not sure why it was there) - <sys/random.h> not available if glibc <= 2.24 - GRND_NONBLOCK not defined if <sys/random.h> not included - ret < 0 && errno == ENOSYS has to be true to get creditable set Signed-off-by: Thomas Devoogdt <thomas@devoogdt.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* seedrng: fix for glibc <= 2.24 not providing getrandom()Denys Vlasenko2023-04-101-0/+14
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* seedrng: do not hash in a constant string, it's not adding entropyDenys Vlasenko2022-05-031-8/+8
| | | | | | | | | | function old new delta seedrng_main 906 880 -26 .rodata 104899 104873 -26 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-52) Total: -52 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* seedrng: restore error check on fsyncDenys Vlasenko2022-05-021-9/+12
| | | | | | | | | Or else security people will never stop nagging us. function old new delta seedrng_main 884 906 +22 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* seedrng: it's not a part of util-linux, move to miscutilsDenys Vlasenko2022-05-021-0/+239
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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