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-rw-r--r--util/nvmutil/nvmutil.c10
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