[us-commits] [ehb54/ultrascan3] 3faed2: Fix Schannel TLS cipher mismatch on MSYS2/64 Windo...

[emre brookes]

  Branch: refs/heads/ehb54-issue-940
  Home:   https://github.com/ehb54/ultrascan3
  Commit: 3faed26d8dcbf7139b36a7fe5e934d0d3c89cd20
      https://github.com/ehb54/ultrascan3/commit/3faed26d8dcbf7139b36a7fe5e934d0d3c89cd20
  Author: ehb54 <brookes at uthscsa.edu>
  Date:   2026-06-30 (Tue, 30 Jun 2026)

  Changed paths:
    M utils/us_db2.cpp

  Log Message:
  -----------
  Fix Schannel TLS cipher mismatch on MSYS2/64 Windows builds (#940)

The expanded ECDHE/CCM CIPHER list added 2025-12-31 broke connectivity
on MSYS2/64 (MINGW64) Windows builds, which link a Schannel-backed
libmariadb: "TLS/SSL error: no cipher match Error 0x80090331
(SEC_E_ALGORITHM_MISMATCH)". Confirmed via bisection with temporary
debug flags that only the cipher list (not SECLEVEL=0, the TLS
1.2/1.3 floor, or verify-cert-disable) was responsible.

Scope the fix to __MINGW64__ only, reverting to the pre-2025-12-31
short cipher list there. MSVC/vcpkg builds (which do not define
__MINGW64__) and Linux/macOS builds keep the expanded list unchanged.

Fixes ehb54/ultrascan-tickets#940

Co-Authored-By: Claude Sonnet 4.6 <noreply at anthropic.com>



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