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#
# this file has been created for the Lame patcher program available for both *nix
# and Windows platforms.
# You need this program for continuing the patching of your files:
#
#   http://aluigi.org/mytoolz.htm#lpatch
#
# Quick step-by-step for Windows:
# - launch lpatch.exe
# - select this swat4x1fix.lpatch file
# - read the message windows and click yes
# - select the file (usually executables or dlls) to patch
# - read the message windows to know if everything has been patched correctly
# - test your game

TITLE
    SWAT 4 1.1 NULL pointers fix 0.1
    by Luigi Auriemma
    e-mail: aluigi@autistici.org
    web:    aluigi.org

INTRO
    This unofficial patch for SWAT 4 is able to fix the bug A described here:
    .
    . http://aluigi.org/adv/swat4x-adv.txt
    .
    If you are unsure if your server is vulnerable please use the proof-of-concept
    provided there.
    .
    The patch is available only for version 1.1 of the dedicated server, older
    versions will be NOT supported by me so don't ask.

FILE
    core.dll

    # fixes 4 functions, so could prevent other unknown NULL pointers
BYTES_ORIGINAL
    CC CC CC CC
    CC CC CC CC
    56                  ; PUSH ESI
    57                  ; PUSH EDI
    8B 7C 24 0C         ; MOV EDI,DWORD PTR SS:[ESP+C]
    8B F1               ; MOV ESI,ECX
    3B F7               ; CMP ESI,EDI
    74 36               ; JE SHORT Core.1011BC52
    8B 47 04            ; MOV EAX,DWORD PTR DS:[EDI+4]

BYTES_PATCH
    8B F1               ; MOV ESI,ECX
    85 FF               ; TEST EDI,EDI
    74 44               ; JE SHORT Core.1011BC52
    EB 08               ; JMP SHORT Core.1011BC18
    ??
    ??
    ?? ?? ?? ??
    EB F0               ; JMP SHORT Core.1011BC08

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