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util/nvmutil: use BUFSIZ for rmac size in hextonum

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I will be using this function elsewhere, and in general
I want this to be usable for lots of programs.
This commit is contained in:
Leah Rowe
2022-12-03 11:55:38 +00:00
parent a6d0112d86
commit e2e321fc20
1 changed files with 5 additions and 5 deletions
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util/nvmutil/nvmutil.c
+5 -5
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@@ -219,18 +219,18 @@ hextonum(char chs)
uint8_t val8, ch; uint8_t val8, ch;
static int macfd; static int macfd;
static uint8_t *rmac = NULL; static uint8_t *rmac = NULL;
static int random; static size_t random;
if (random > 11) { if (random == BUFSIZ) {
close(macfd); close(macfd);
free(rmac); free(rmac);
rmac = NULL; rmac = NULL;
} }
if (rmac == NULL) { if (rmac == NULL) {
random = 0; random = 0;
if ((rmac = (uint8_t *) malloc(12)) == NULL) if ((rmac = (uint8_t *) malloc(BUFSIZ)) == NULL)
err(1, NULL); err(1, NULL);
if (readFromFile(&macfd, rmac, "/dev/urandom", O_RDONLY, 12) if (readFromFile(&macfd, rmac, "/dev/urandom", O_RDONLY,
!= 12) { BUFSIZ) != BUFSIZ) {
warn("%s", "/dev/urandom"); warn("%s", "/dev/urandom");
return 16; return 16;
} }