diff options
Diffstat (limited to 'mgenmid.c')
| -rw-r--r-- | mgenmid.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/mgenmid.c b/mgenmid.c index 497cbc4..c7d713c 100644 --- a/mgenmid.c +++ b/mgenmid.c @@ -85,30 +85,35 @@ int main() struct timeval tp; gettimeofday(&tp, (struct timezone *)0); - uint64_t rnd; + uint64_t rnd1, rnd2; int rndfd = open("/dev/urandom", O_RDONLY); if (rndfd >= 0) { - unsigned char rndb[8]; + unsigned char rndb[16]; if (read(rndfd, rndb, sizeof rndb) != sizeof rndb) goto fallback; close(rndfd); int i; - for (i = 0, rnd = 0; i < 8; i++) - rnd = rnd*256 + rndb[i]; + for (i = 0, rnd1 = 0; i < 8; i++) + rnd1 = rnd1*256 + rndb[i]; + for (i = 0, rnd2 = 0; i < 8; i++) + rnd2 = rnd2*256 + rndb[i+8]; } else { fallback: srand48(tp.tv_sec ^ tp.tv_usec ^ getpid()); - rnd = ((uint64_t)lrand48() << 32) + lrand48(); + rnd1 = ((uint64_t)lrand48() << 32) + lrand48(); + rnd2 = ((uint64_t)lrand48() << 32) + lrand48(); } - rnd |= (1ULL << 63); // set highest bit to force full width + rnd1 ^= ((uint64_t)tp.tv_sec * 1000000LL + tp.tv_usec); + rnd1 |= (1ULL << 63); // set highest bit to force full width + rnd2 |= (1ULL << 63); // set highest bit to force full width putchar('<'); - printb36(((uint64_t)tp.tv_sec * 1000000LL + tp.tv_usec)); + printb36(rnd1); putchar('.'); - printb36(rnd); + printb36(rnd2); putchar('@'); fputs(host, stdout); putchar('>'); |