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util/nvmutil: code cleanup in rhex()

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This commit is contained in:
Leah Rowe
2023-01-27 13:54:01 +00:00
parent ac1cab288d
commit 88a51531cf
1 changed files with 5 additions and 4 deletions
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util/nvmutil/nvmutil.c
+5 -4
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@@ -252,19 +252,20 @@ rhex(void)
static int rfd = -1;
static uint8_t *rbuf = NULL;
static size_t rindex = BUFSIZ;
int bsize = BUFSIZ;
if (rindex == BUFSIZ) {
if (rindex == bsize) {
rindex = 0;
if (rbuf == NULL)
if ((rbuf = (uint8_t *) malloc(BUFSIZ)) == NULL)
if ((rbuf = (uint8_t *) malloc(bsize)) == NULL)
err(errno, NULL);
if (rfd != -1) {
if (close(rfd))
err(errno, "/dev/urandom");
rfd = -1;
}
if (readFromFile(&rfd, rbuf, "/dev/urandom", O_RDONLY, BUFSIZ)
!= BUFSIZ)
if (readFromFile(&rfd, rbuf, "/dev/urandom", O_RDONLY, bsize)
!= bsize)
err(errno, "/dev/urandom");
if (errno != 0)
err(errno, "/dev/urandom");