diff options
| -rw-r--r-- | util/nvmutil/nvmutil.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c index 1a873b2a..479b1c2b 100644 --- a/util/nvmutil/nvmutil.c +++ b/util/nvmutil/nvmutil.c @@ -261,10 +261,9 @@ rhex(void) { static int rfd = -1; static uint64_t rnum = 0; - static size_t rindex = 8; + uint8_t rval; - if (rindex == 8) { - rindex = 0; + if (rnum == 0) { if (rfd == -1) if ((rfd = open("/dev/urandom", O_RDONLY)) == -1) err(errno, "/dev/urandom"); @@ -272,7 +271,10 @@ rhex(void) err(errno, "/dev/urandom"); } - return ((uint8_t *) &rnum)[rindex++] & 0xf; + rval = (uint8_t) (rnum & 0xf); + rnum >>= 4; + + return rval; } void |