From 43b110a81b54d67739400b9d821a66a4489d6fb2 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Thu, 26 Mar 2026 01:33:01 +0000 Subject: libreboot-utils: tidy up rand.c Signed-off-by: Leah Rowe --- util/libreboot-utils/lib/rand.c | 57 +++++++++++++++-------------------------- 1 file changed, 20 insertions(+), 37 deletions(-) (limited to 'util/libreboot-utils/lib') diff --git a/util/libreboot-utils/lib/rand.c b/util/libreboot-utils/lib/rand.c index 6fb25d9d..4ac50a9c 100644 --- a/util/libreboot-utils/lib/rand.c +++ b/util/libreboot-utils/lib/rand.c @@ -71,52 +71,35 @@ #define ELOTTERY ECANCELED -void * -rmalloc(size_t *rval) -{ - if (if_err(rval == NULL, EFAULT)) - return NULL; - - rset(rval, sizeof(*rval)); - return mkrstr(*rval %= BUFSIZ); -} - int -win_lottery(void) +win_lottery(void) /* are u lucky? */ { - int saved_errno = errno; - size_t size1; - char *s1 = NULL; - size_t size2; - char *s2 = NULL; - size_t pool = BUFSIZ; + size_t size = 0; int rval; - rset(&size1, sizeof(size1)); - rset(&size2, sizeof(size2)); + char *s1 = rmalloc(&size); + char *s2 = rmalloc(&size); - size1 %= pool, size2 %= pool; - s1 = mkrstr(size1), s2 = mkrstr(size2); + if (scmp(s1, s2, BUFSIZ + 2, &rval) >= 0 && + rval == 0) + rval = 1; /* winner */ + else + rval = 0; - if (scmp(s1, s2, BUFSIZ + 2, &rval) < 0) - goto err; - if (rval == 0) - goto win; + free_if_null(&s1); + free_if_null(&s2); - free_if_null(&s1), free_if_null(&s2); + return rval; +} - fprintf(stderr, "Sorry, you lose! Try again.\n"); - return 0; -win: - free_if_null(&s1), free_if_null(&s2); +void * +rmalloc(size_t *rval) +{ + if (if_err(rval == NULL, EFAULT)) + return NULL; - printf("Congratulations! you won the errno lottery!\n"); - return 1; -err: - /* the lottery won you */ - free_if_null(&s1), free_if_null(&s2); - err_no_cleanup(0, EFAULT, "lottery won you"); - return 0; + rset(rval, sizeof(*rval)); + return mkrstr(*rval %= BUFSIZ); } char * -- cgit v1.2.1