Fix range checks with -offset and -length in asn1parse
@@ -258,14 +258,14 @@ int asn1parse_main(int argc, char **argv)
num = tmplen;
}
- if (offset >= num) {
+ if (offset < 0 || offset >= num) {
BIO_printf(bio_err, "Error: offset too large\n");
goto end;
}
num -= offset;
- if ((length == 0) || ((long)length > num))
+ if (length == 0 || length > (unsigned int)num)
length = (unsigned int)num;
if (derout != NULL) {
if (BIO_write(derout, str + offset, length) != (int)length) {
