[openssl/openssl] 568085: OPENSSL_hexstr2buf_ex(): Handle zero-length input ...

[Tomáš Mráz]

  Branch: refs/heads/openssl-3.3
  Home:   https://github.com/openssl/openssl
  Commit: 568085f637ee29a5cdd09228fd94b255bb7f1c5c
      https://github.com/openssl/openssl/commit/568085f637ee29a5cdd09228fd94b255bb7f1c5c
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2024-07-02 (Tue, 02 Jul 2024)

  Changed paths:
    M crypto/o_str.c
    M test/hexstr_test.c

  Log Message:
  -----------
  OPENSSL_hexstr2buf_ex(): Handle zero-length input correctly

In case of zero-length input the code wrote one byte
before the start of the output buffer. The length
of the output was also reported incorrectly in this case.

Reviewed-by: Tim Hudson <tjh at openssl.org>
Reviewed-by: Neil Horman <nhorman at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24770)

(cherry picked from commit 3f7b355733407cf777bfad5ce5b79610588bacc5)



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