[openssl/openssl] 6d676e: Fix line continuation check in config parser

[Tobias Erbsland]

  Branch: refs/heads/openssl-3.1
  Home:   https://github.com/openssl/openssl
  Commit: 6d676ed969a6492ef076cf1f1330c9bee9c55223
      https://github.com/openssl/openssl/commit/6d676ed969a6492ef076cf1f1330c9bee9c55223
  Author: erbsland-dev <github at erbsland.dev>
  Date:   2024-07-16 (Tue, 16 Jul 2024)

  Changed paths:
    M crypto/conf/conf_def.c

  Log Message:
  -----------
  Fix line continuation check in config parser

Fixes #8038: Previously, line continuation logic did not account for the 'again' flag, which could cause incorrect removal of a backslash character in the middle of a line. This fix ensures that line continuation is correctly handled only when 'again' is false, thus improving the reliability of the configuration parser.

Reviewed-by: Neil Horman <nhorman at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24890)

(cherry picked from commit f54e4bc51b78c10dc99a61c087861ee2c11d7a41)


  Commit: c11b83eddf7ac7550a54afb9eebaf735b3e31061
      https://github.com/openssl/openssl/commit/c11b83eddf7ac7550a54afb9eebaf735b3e31061
  Author: erbsland-dev <github at erbsland.dev>
  Date:   2024-07-16 (Tue, 16 Jul 2024)

  Changed paths:
    M test/recipes/04-test_conf.t
    A test/recipes/04-test_conf_data/oversized_line.cnf
    A test/recipes/04-test_conf_data/oversized_line.txt

  Log Message:
  -----------
  Add tests for long configuration lines with backslashes

Introduce new test files to verify behavior with config lines longer than 512 characters containing backslashes. Updated test plan to include these new test scenarios.

Reviewed-by: Neil Horman <nhorman at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24890)

(cherry picked from commit 2dd74d3acb9425251a2028504f07623bd97bfe87)


Compare: https://github.com/openssl/openssl/compare/58793b13c15f...c11b83eddf7a

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