tree 6262a887f0886aa01094176bec64d80f1f7c2361
parent 76a83aa4ae643a622646525b92cb132b74f95f3a
author David Benjamin <davidben@google.com> 1672270398 -0500
committer Boringssl LUCI CQ <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com> 1674776202 +0000

Add CBS_get_u64_decimal.

ASN1_generate_v8 has a number of calls to strtoul. strtoul has two
problems for that function.

First, strtoul keeps reading until NUL, but all the functions in that
file act on pointer/length pairs. It's fine because the underlying
string is always NUL-terminated, but this is fragile.

Second, strtoul is actually defined to parse "-1" as
(unsigned long)(-1)! Rather than deal with this, extract the decimal
string parser out of the OID parser as a CBS strotul equivalent.

Change-Id: I1b7a1867d185e34e752be09f8c8103b82e364f35
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/56165
Reviewed-by: Bob Beck <bbe@google.com>
Auto-Submit: David Benjamin <davidben@google.com>
Commit-Queue: Bob Beck <bbe@google.com>