return 0;
}
uval = val < 0 ? -val : val;
- uval *= factor;
- if (uval > max || (val < 0 ? -val : val) > uval) {
+ if (unsigned_mult_overflows(factor, uval) ||
+ factor * uval > max) {
errno = ERANGE;
return 0;
}
if (value && *value) {
char *end;
uintmax_t val;
- uintmax_t oldval;
+ uintmax_t factor = 1;
errno = 0;
val = strtoumax(value, &end, 0);
if (errno == ERANGE)
return 0;
- oldval = val;
- if (!parse_unit_factor(end, &val)) {
+ if (!parse_unit_factor(end, &factor)) {
errno = EINVAL;
return 0;
}
- if (val > max || oldval > val) {
+ if (unsigned_mult_overflows(factor, val) ||
+ factor * val > max) {
errno = ERANGE;
return 0;
}
+ val *= factor;
*ret = val;
return 1;
}