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ahmetabdi/swtor_obf.cpp

Created December 23, 2022 10:36
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swtor_obf.cpp
int __cdecl sub_10003CC0(unsigned __int8 *a1, unsigned int a2, int a3)
{
unsigned __int8 *v3; // edx
unsigned int v4; // esi
int v5; // edi
unsigned int v6; // ecx
int v7; // ebx
unsigned int v8; // edi
unsigned int v9; // ecx
int v10; // ebx
int v11; // ebx
int v12; // eax
unsigned int v13; // edi
unsigned int v14; // ebx
int v15; // ecx
unsigned int v16; // eax
unsigned int v17; // ebx
unsigned int v18; // ecx
int v19; // edi
unsigned int v20; // eax
unsigned int v21; // ecx
unsigned int v22; // edi
int v23; // ebx
unsigned int v24; // eax
unsigned int v25; // edi
unsigned int v26; // ebx
int v27; // ecx
unsigned int v28; // eax
unsigned int v29; // ecx
int v30; // edi
int v31; // eax
int v32; // eax
int v34; // ecx
unsigned int v35; // edi
int v36; // ebx
int v37; // eax
unsigned int v38; // edi
unsigned int v39; // ebx
int v40; // ecx
unsigned int v41; // eax
unsigned int v42; // ebx
unsigned int v43; // ecx
int v44; // edi
unsigned int v45; // eax
unsigned int v46; // ecx
unsigned int v47; // edi
int v48; // ebx
unsigned int v49; // eax
unsigned int v50; // edi
unsigned int v51; // ebx
int v52; // ecx
unsigned int v53; // eax
unsigned int v54; // ecx
int v55; // edi
int v56; // eax
int v57; // eax
int v58; // ecx
unsigned int v59; // edi
int v60; // ebx
int v61; // eax
unsigned int v62; // edi
unsigned int v63; // ebx
int v64; // ecx
unsigned int v65; // eax
unsigned int v66; // ebx
unsigned int v67; // ecx
int v68; // edi
unsigned int v69; // eax
unsigned int v70; // ecx
unsigned int v71; // edi
int v72; // ebx
unsigned int v73; // eax
unsigned int v74; // edi
unsigned int v75; // ebx
int v76; // ecx
unsigned int v77; // eax
unsigned int v78; // ecx
bool v79; // zf
unsigned int v80; // edi
unsigned int v81; // ecx
unsigned int v82; // ebx
unsigned int v83; // esi
unsigned int v84; // ecx
unsigned int v85; // [esp+Ch] [ebp-4h]
unsigned int v86; // [esp+Ch] [ebp-4h]
unsigned int v87; // [esp+Ch] [ebp-4h]
int v88; // [esp+Ch] [ebp-4h]
v3 = a1;
v4 = a2;
v5 = a2 + a3 - 559038737;
v6 = v5;
v7 = v5;
if ( ((unsigned __int8)a1 & 3) != 0 )
{
if ( ((unsigned __int8)a1 & 1) != 0 )
{
if ( a2 > 0xC )
{
v3 = a1;
v87 = (a2 - 13) / 0xC + 1;
do
{
v58 = ((v3[5] + ((v3[6] + (v3[7] << 8)) << 8)) << 8) + v3[4] + v6;
v59 = ((a1[9] + ((a1[10] + (v3[11] << 8)) << 8)) << 8) + a1[8] + v5;
v60 = (v59 >> 28) ^ (*a1 + ((a1[1] + ((a1[2] + (a1[3] << 8)) << 8)) << 8) - v59 + v7);
v61 = 16 * v59;
v62 = v58 + v59;
v63 = v61 ^ v60;
v64 = (v63 >> 26) ^ (v58 - v63);
v65 = v63 << 6;
v66 = v62 + v63;
v67 = v65 ^ v64;
v68 = HIBYTE(v67) ^ (v62 - v67);
v69 = v67 << 8;
v70 = v66 + v67;
v71 = v69 ^ v68;
v72 = HIWORD(v71) ^ (v66 - v71);
v73 = v71 << 16;
v74 = v70 + v71;
v75 = v73 ^ v72;
v76 = (v75 << 19) ^ (v70 - v75);
v77 = v75 >> 13;
v7 = v74 + v75;
v78 = v77 ^ v76;
v5 = (16 * v78) ^ (v78 >> 28) ^ (v74 - v78);
v6 = v7 + v78;
v4 = a2 - 12;
v3 = a1 + 12;
a2 -= 12;
v79 = v87-- == 1;
a1 += 12;
}
while ( !v79 );
}
switch ( v4 )
{
case 0u:
return v5;
case 1u:
goto LABEL_49;
case 2u:
goto LABEL_48;
case 3u:
goto LABEL_47;
case 4u:
goto LABEL_46;
case 5u:
goto LABEL_45;
case 6u:
goto LABEL_44;
case 7u:
goto LABEL_43;
case 8u:
goto LABEL_42;
case 9u:
goto LABEL_41;
case 0xAu:
goto LABEL_40;
case 0xBu:
goto LABEL_39;
case 0xCu:
v5 += v3[11] << 24;
LABEL_39:
v5 += v3[10] << 16;
LABEL_40:
v5 += v3[9] << 8;
LABEL_41:
v5 += v3[8];
LABEL_42:
v6 += v3[7] << 24;
LABEL_43:
v6 += v3[6] << 16;
LABEL_44:
v6 += v3[5] << 8;
LABEL_45:
v6 += v3[4];
LABEL_46:
v7 += v3[3] << 24;
LABEL_47:
v7 += v3[2] << 16;
LABEL_48:
v7 += v3[1] << 8;
LABEL_49:
v32 = *v3;
LABEL_50:
v7 += v32;
break;
default:
break;
}
}
else
{
if ( a2 > 0xC )
{
v3 = a1;
v86 = (a2 - 13) / 0xC + 1;
do
{
v34 = (*((unsigned __int16 *)v3 + 3) << 16) + *((unsigned __int16 *)v3 + 2) + v6;
v35 = (*((unsigned __int16 *)v3 + 5) << 16) + *((unsigned __int16 *)a1 + 4) + v5;
v36 = (v35 >> 28) ^ (*(unsigned __int16 *)a1 + (*((unsigned __int16 *)a1 + 1) << 16) - v35 + v7);
v4 = a2 - 12;
v37 = 16 * v35;
v38 = v34 + v35;
v39 = v37 ^ v36;
a2 -= 12;
v3 = a1 + 12;
v40 = (v39 >> 26) ^ (v34 - v39);
a1 += 12;
v41 = v39;
v42 = v38 + v39;
v43 = (v41 << 6) ^ v40;
v44 = HIBYTE(v43) ^ (v38 - v43);
v45 = v43 << 8;
v46 = v42 + v43;
v47 = v45 ^ v44;
v48 = HIWORD(v47) ^ (v42 - v47);
v49 = v47 << 16;
v50 = v46 + v47;
v51 = v49 ^ v48;
v52 = (v51 << 19) ^ (v46 - v51);
v53 = v51 >> 13;
v7 = v50 + v51;
v54 = v53 ^ v52;
v55 = (v54 >> 28) ^ (v50 - v54);
v56 = 16 * v54;
v6 = v7 + v54;
v5 = v56 ^ v55;
--v86;
}
while ( v86 );
}
switch ( v4 )
{
case 0u:
return v5;
case 1u:
goto LABEL_49;
case 2u:
goto LABEL_33;
case 3u:
v7 += v3[2] << 16;
LABEL_33:
v32 = *(unsigned __int16 *)v3;
goto LABEL_50;
case 4u:
goto LABEL_30;
case 5u:
v57 = v3[4];
goto LABEL_29;
case 6u:
goto LABEL_28;
case 7u:
v6 += v3[6] << 16;
LABEL_28:
v57 = *((unsigned __int16 *)v3 + 2);
LABEL_29:
v6 += v57;
LABEL_30:
v7 += (*((unsigned __int16 *)v3 + 1) << 16) + *(unsigned __int16 *)a1;
break;
case 8u:
goto LABEL_26;
case 9u:
v5 += v3[8];
LABEL_26:
v6 += (*((unsigned __int16 *)v3 + 3) << 16) + *((unsigned __int16 *)a1 + 2);
v7 += (*((unsigned __int16 *)a1 + 1) << 16) + *(unsigned __int16 *)a1;
break;
case 0xAu:
goto LABEL_24;
case 0xBu:
v5 += v3[10] << 16;
LABEL_24:
v5 += *((unsigned __int16 *)v3 + 4);
v6 += (*((unsigned __int16 *)v3 + 3) << 16) + *((unsigned __int16 *)a1 + 2);
v7 += (*((unsigned __int16 *)a1 + 1) << 16) + *(unsigned __int16 *)a1;
break;
case 0xCu:
v5 += (*((unsigned __int16 *)v3 + 5) << 16) + *((unsigned __int16 *)a1 + 4);
v6 += (*((unsigned __int16 *)a1 + 3) << 16) + *((unsigned __int16 *)a1 + 2);
v7 += (*((unsigned __int16 *)a1 + 1) << 16) + *(unsigned __int16 *)a1;
break;
default:
break;
}
}
}
else
{
if ( a2 > 0xC )
{
v3 = a1;
v85 = (a2 - 13) / 0xC + 1;
do
{
v8 = *((_DWORD *)v3 + 2) + v5;
v4 -= 12;
v9 = *((_DWORD *)v3 + 1) + v6;
v10 = *(_DWORD *)v3 + v7 - v8;
v3 += 12;
v11 = (v8 >> 28) ^ v10;
v12 = 16 * v8;
v13 = v9 + v8;
v14 = v12 ^ v11;
v15 = (v14 >> 26) ^ (v9 - v14);
v16 = v14 << 6;
v17 = v13 + v14;
v18 = v16 ^ v15;
v19 = HIBYTE(v18) ^ (v13 - v18);
v20 = v18 << 8;
v21 = v17 + v18;
v22 = v20 ^ v19;
v23 = HIWORD(v22) ^ (v17 - v22);
v24 = v22 << 16;
v25 = v21 + v22;
v26 = v24 ^ v23;
v27 = (v26 << 19) ^ (v21 - v26);
v28 = v26 >> 13;
v7 = v25 + v26;
v29 = v28 ^ v27;
v30 = (v29 >> 28) ^ (v25 - v29);
v31 = 16 * v29;
v6 = v7 + v29;
v5 = v31 ^ v30;
--v85;
}
while ( v85 );
}
switch ( v4 )
{
case 0u:
return v5;
case 1u:
goto LABEL_49;
case 2u:
goto LABEL_33;
case 3u:
v32 = *(_DWORD *)v3 & 0xFFFFFF;
goto LABEL_50;
case 4u:
goto LABEL_8;
case 5u:
v6 += v3[4];
v7 += *(_DWORD *)v3;
break;
case 6u:
v6 += *((unsigned __int16 *)v3 + 2);
v7 += *(_DWORD *)v3;
break;
case 7u:
v6 += *((_DWORD *)v3 + 1) & 0xFFFFFF;
v7 += *(_DWORD *)v3;
break;
case 8u:
goto LABEL_7;
case 9u:
v6 += *((_DWORD *)v3 + 1);
v5 += v3[8];
v7 += *(_DWORD *)v3;
break;
case 0xAu:
v6 += *((_DWORD *)v3 + 1);
v5 += *((unsigned __int16 *)v3 + 4);
v7 += *(_DWORD *)v3;
break;
case 0xBu:
v6 += *((_DWORD *)v3 + 1);
v5 += *((_DWORD *)v3 + 2) & 0xFFFFFF;
v7 += *(_DWORD *)v3;
break;
case 0xCu:
v5 += *((_DWORD *)v3 + 2);
LABEL_7:
v6 += *((_DWORD *)v3 + 1);
LABEL_8:
v7 += *(_DWORD *)v3;
break;
default:
break;
}
}
v88 = (v6 ^ v5) - ((v6 << 14) ^ (v6 >> 18));
v80 = (v7 ^ v88) - ((v88 << 11) ^ ((unsigned __int64)(unsigned int)v88 >> 21));
v81 = (v80 ^ v6) - ((v80 >> 7) ^ (v80 << 25));
v82 = (v81 ^ v88) - ((v81 << 16) ^ HIWORD(v81));
v83 = (v80 ^ v82) - ((16 * v82) ^ (v82 >> 28));
v84 = (v83 ^ v81) - ((v83 << 14) ^ (v83 >> 18));
return (v84 ^ v82) - ((v84 >> 8) ^ (v84 << 24));
}
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