• src/xpdev/xpsem.c xpsem.h

    From Deucе@VERT to Git commit to main/sbbs/master on Sun Sep 6 22:20:34 2026
    https://gitlab.synchro.net/main/sbbs/-/commit/e332cb45b3eb0ded5ad3fa08
    Modified Files:
    src/xpdev/xpsem.c xpsem.h
    Log Message:
    Validate XP semaphore handles and values

    Port the contract-preserving validation fixes from XPDev 9ff2e08d35d7b22a38478b669b8ad7ddcb60e2fb without importing the semaphore implementation-selection changes.

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