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| author |  Christian Hesse <mail@eworm.de> | 2019-02-17 21:53:57 +0100 |
|---|---|---|
| committer | Christian Hesse <mail@eworm.de> | 2019-02-17 21:53:57 +0100 |
| commit | c33a043cb6a9ff5431d050a095f7900d9303a6e1 (patch) | |
| tree | d5abf27bd5f6a58920971ae4d44753b8f702337b | |
| parent | 46c8a3e214ee092b99a30fab8ed91b6f033287a9 (diff) | |
| download | mkinitcpio-ykfde-c33a043cb6a9ff5431d050a095f7900d9303a6e1.tar.gz mkinitcpio-ykfde-c33a043cb6a9ff5431d050a095f7900d9303a6e1.tar.zst | |
Seed with real random number
| -rw-r--r-- | bin/ykfde.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/bin/ykfde.c b/bin/ykfde.c index 34674cc..2dfd5d7 100644 --- a/bin/ykfde.c +++ b/bin/ykfde.c @@ -13,7 +13,7 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <sys/time.h> +#include <sys/random.h> #include <sys/stat.h> #include <termios.h> #include <unistd.h> @@ -112,7 +112,7 @@ int main(int argc, char **argv) { char challengefilename[sizeof(CHALLENGEDIR) + 11 /* "/challenge-" */ + 10 /* unsigned int in char */ + 1], challengefiletmpname[sizeof(CHALLENGEDIR) + 11 /* "/challenge-" */ + 10 /* unsigned int in char */ + 7 /* -XXXXXX */ + 1]; int challengefile = 0, challengefiletmp = 0; - struct timeval tv; + unsigned int seed; int i; size_t len; int8_t rc = EXIT_FAILURE; @@ -196,10 +196,12 @@ int main(int argc, char **argv) { if (version > 0 || help > 0) return EXIT_SUCCESS; - /* initialize random seed */ - gettimeofday(&tv, NULL); - srand(tv.tv_usec * tv.tv_sec); + if (getrandom(&seed, 4, GRND_RANDOM) != 4) { + fprintf(stderr, "Initializing random seed failed.\n"); + goto out10; + } + srand(seed); /* initialize static buffers */ memset(challenge_old, 0, CHALLENGELEN + 1); |