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-rw-r--r--util/nvmutil/nvmutil.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c
index c5510e8f..5f126dd4 100644
--- a/util/nvmutil/nvmutil.c
+++ b/util/nvmutil/nvmutil.c
@@ -432,20 +432,20 @@ hextonum(char ch)
static uint8_t
rhex(void)
{
- static int n = -1;
static uint8_t rnum[12];
+ static size_t n = 0;
- if (n == -1) {
- n = sizeof(rnum) - 1;
+ if (!n) {
#ifdef HAVE_ARC4RANDOM
arc4random_buf(rnum, sizeof(rnum));
#else
read_file_PERFECTLY_or_die(rfd, rnum, sizeof(rnum),
0, rname, NULL);
#endif
+ n = sizeof(rnum);
}
- return rnum[n--] & 0xf;
+ return rnum[--n] & 0xf;
}
static void