{"type": "func", "start": 6443739280, "end": 6443739977, "name": "_setmbcp_nolock", "pseudocode": "// \n// _setmbcp_nolock from 0x18013a890 to 0x18013ab49 (697 bytes)\n// \n// 3 xrefs:\n// > setmbcp_internal @ 0x18013a67a\n// > @ 0x180203884\n// > @ 0x180203890\n// \n// This function is hookable on this platform!\n// \n// Using BromaIDA 8.0.0 @ https://github.com/Stazzical/BromaIDA\n// Using bindings at commit ba9f177b at Thu Jul 16 22:52:06 2026 from https://github.com/geode-sdk/bindings\n// \n\n__int64 __fastcall setmbcp_nolock(UINT a1, __int64 a2)\n{\n const wchar_t *v3; // rbx\n UINT SystemCP; // edi\n unsigned int v5; // r14d\n _DWORD *v6; // rax\n int v7; // ebp\n _WORD *v8; // rdi\n __int64 j; // rcx\n bool v10; // zf\n BYTE *i; // rcx\n unsigned int v12; // eax\n unsigned int v13; // edx\n __int64 v14; // rdi\n __int64 v15; // rdx\n _BYTE *v16; // rax\n __int64 v17; // rcx\n const wchar_t *v18; // rax\n __int64 v20; // rax\n _BYTE *v21; // r15\n __int64 v22; // r14\n char *v23; // r9\n unsigned __int8 *v24; // rdx\n unsigned int v25; // r8d\n __int64 v26; // r10\n UINT v27; // edi\n UINT v28; // edi\n UINT v29; // edi\n _WORD *v30; // rdx\n __int64 v31; // rcx\n struct _cpinfo CPInfo; // [rsp+20h] [rbp-58h] BYREF\n\n v3 = nullptr;\n SystemCP = getSystemCP(a1);\n if ( SystemCP )\n {\n v5 = 0;\n v6 = &unk_1801B1EA0;\n v7 = 1;\n do\n {\n if ( *v6 == SystemCP )\n {\n memset((void *)(a2 + 24), 0, 0x101u);\n v20 = v5;\n v21 = &unk_1801B1E90;\n v22 = 4;\n v23 = (char *)&unk_1801B1EB0 + 48 * v20;\n do\n {\n v24 = (unsigned __int8 *)v23;\n if ( *v23 )\n {\n do\n {\n if ( !v24[1] )\n break;\n v25 = *v24;\n if ( v25 <= v24[1] )\n {\n v26 = v25 + 1;\n do\n {\n if ( (unsigned int)v26 >= 0x101 )\n break;\n ++v25;\n *(_BYTE *)(v26 + a2 + 24) |= *v21;\n v26 = (unsigned int)(v26 + 1);\n }\n while ( v25 <= v24[1] );\n }\n v24 += 2;\n }\n while ( *v24 );\n }\n v23 += 8;\n ++v21;\n --v22;\n }\n while ( v22 );\n *(_DWORD *)(a2 + 4) = SystemCP;\n *(_DWORD *)(a2 + 8) = 1;\n v27 = SystemCP - 932;\n if ( v27 )\n {\n v28 = v27 - 4;\n if ( v28 )\n {\n v29 = v28 - 13;\n if ( v29 )\n {\n if ( v29 == 1 )\n v3 = L\"zh-TW\";\n }\n else\n {\n v3 = L\"ko-KR\";\n }\n }\n else\n {\n v3 = L\"zh-CN\";\n }\n }\n else\n {\n v3 = L\"ja-JP\";\n }\n *(_QWORD *)(a2 + 544) = v3;\n v30 = (_WORD *)(a2 + 12);\n v31 = 6;\n do\n {\n *v30 = *(_WORD *)((char *)v30 + (_QWORD)&unk_1801B1EA0 + 48 * v20 - a2 - 8);\n ++v30;\n --v31;\n }\n while ( v31 );\n goto LABEL_12;\n }\n ++v5;\n v6 += 12;\n }\n while ( v5 < 5 );\n if ( SystemCP == 65000 || !IsValidCodePage((unsigned __int16)SystemCP) )\n return 0xFFFFFFFFLL;\n if ( SystemCP == 65001 )\n {\n *(_QWORD *)(a2 + 4) = 65001;\n *(_QWORD *)(a2 + 544) = 0;\n *(_DWORD *)(a2 + 24) = 0;\n *(_WORD *)(a2 + 28) = 0;\n goto LABEL_9;\n }\n if ( GetCPInfo(SystemCP, &CPInfo) )\n {\n memset((void *)(a2 + 24), 0, 0x101u);\n v10 = CPInfo.MaxCharSize == 2;\n *(_DWORD *)(a2 + 4) = SystemCP;\n *(_QWORD *)(a2 + 544) = 0;\n if ( v10 )\n {\n for ( i = CPInfo.LeadByte; *i; i += 2 )\n {\n if ( !i[1] )\n break;\n v12 = i[1];\n v13 = *i;\n if ( v13 <= v12 )\n {\n v14 = v13 + 1;\n v15 = v12 - v13 + 1;\n do\n {\n *(_BYTE *)(v14 + a2 + 24) |= 4u;\n v14 = (unsigned int)(v14 + 1);\n --v15;\n }\n while ( v15 );\n }\n }\n v16 = (_BYTE *)(a2 + 26);\n v17 = 254;\n do\n {\n *v16++ |= 8u;\n --v17;\n }\n while ( v17 );\n switch ( *(_DWORD *)(a2 + 4) )\n {\n case 0x3A4:\n v18 = L\"ja-JP\";\n break;\n case 0x3A8:\n v18 = L\"zh-CN\";\n break;\n case 0x3B5:\n v18 = L\"ko-KR\";\n break;\n case 0x3B6:\n v18 = L\"zh-TW\";\n break;\n default:\n v18 = nullptr;\n break;\n }\n *(_QWORD *)(a2 + 544) = v18;\n }\n else\n {\n v7 = 0;\n }\n *(_DWORD *)(a2 + 8) = v7;\nLABEL_9:\n v8 = (_WORD *)(a2 + 12);\n for ( j = 6; j; --j )\n *v8++ = 0;\nLABEL_12:\n setSBUpLow((struct __crt_multibyte_data *)a2);\n return 0;\n }\n if ( !dword_1801F55D8 )\n return 0xFFFFFFFFLL;\n }\n setSBCS((struct threadmbcinfostruct *)a2);\n return 0;\n}", "assembly": "; \n; _setmbcp_nolock from 0x18013a890 to 0x18013ab49 (697 bytes)\n; \n; 3 xrefs:\n; > setmbcp_internal @ 0x18013a67a\n; > @ 0x180203884\n; > @ 0x180203890\n; \n; This function is hookable on this platform!\n; \n; Using BromaIDA 8.0.0 @ https:;github.com/Stazzical/BromaIDA\n; Using bindings at commit ba9f177b at Thu Jul 16 22:52:06 2026 from https:;github.com/geode-sdk/bindings\n; \n\nmov [rsp+arg_10], rbx ; +0x0, 0x18013a890\npush rbp ; +0x5, 0x18013a895\npush rsi ; +0x6, 0x18013a896\npush rdi ; +0x7, 0x18013a897\npush r12 ; +0x8, 0x18013a898\npush r13 ; +0xa, 0x18013a89a\npush r14 ; +0xc, 0x18013a89c\npush r15 ; +0xe, 0x18013a89e\nsub rsp, 40h ; +0x10, 0x18013a8a0\nmov rax, cs:__security_cookie ; +0x14, 0x18013a8a4\nxor rax, rsp ; +0x1b, 0x18013a8ab\nmov [rsp+78h+var_40], rax ; +0x1e, 0x18013a8ae\nmov rsi, rdx ; +0x23, 0x18013a8b3\ncall ?getSystemCP@@YAHH@Z ; +0x26, 0x18013a8b6\nxor ebx, ebx ; +0x2b, 0x18013a8bb\nmov edi, eax ; +0x2d, 0x18013a8bd\ntest eax, eax ; +0x2f, 0x18013a8bf\njz loc_18013AB1A ; +0x31, 0x18013a8c1\nlea r13, unk_1801B1EA0 ; +0x37, 0x18013a8c7\nmov r14d, ebx ; +0x3e, 0x18013a8ce\nmov rax, r13 ; +0x41, 0x18013a8d1\nlea ebp, [rbx+1] ; +0x44, 0x18013a8d4\ncmp [rax], edi ; +0x47, 0x18013a8d7\njz loc_18013AA2D ; +0x49, 0x18013a8d9\nadd r14d, ebp ; +0x4f, 0x18013a8df\nadd rax, 30h ; '0' ; +0x52, 0x18013a8e2\ncmp r14d, 5 ; +0x56, 0x18013a8e6\njb short loc_18013A8D7 ; +0x5a, 0x18013a8ea\ncmp edi, 0FDE8h ; +0x5c, 0x18013a8ec\njz loc_18013AA25 ; +0x62, 0x18013a8f2\nmovzx ecx, di; CodePage ; +0x68, 0x18013a8f8\ncall cs:IsValidCodePage ; +0x6b, 0x18013a8fb\ntest eax, eax ; +0x71, 0x18013a901\njz loc_18013AA25 ; +0x73, 0x18013a903\nmov eax, 0FDE9h ; +0x79, 0x18013a909\ncmp edi, eax ; +0x7e, 0x18013a90e\njnz short loc_18013A940 ; +0x80, 0x18013a910\nmov [rsi+4], rax ; +0x82, 0x18013a912\nmov [rsi+220h], rbx ; +0x86, 0x18013a916\nmov [rsi+18h], ebx ; +0x8d, 0x18013a91d\nmov [rsi+1Ch], bx ; +0x90, 0x18013a920\nlea rdi, [rsi+0Ch] ; +0x94, 0x18013a924\nmovzx eax, bx ; +0x98, 0x18013a928\nmov ecx, 6 ; +0x9b, 0x18013a92b\nrep stosw ; +0xa0, 0x18013a930\nmov rcx, rsi; struct __crt_multibyte_data * ; +0xa3, 0x18013a933\ncall ?setSBUpLow@@YAXPEAU__crt_multibyte_data@@@Z ; +0xa6, 0x18013a936\njmp loc_18013AB22 ; +0xab, 0x18013a93b\nlea rdx, [rsp+78h+CPInfo]; lpCPInfo ; +0xb0, 0x18013a940\nmov ecx, edi; CodePage ; +0xb5, 0x18013a945\ncall cs:GetCPInfo ; +0xb7, 0x18013a947\ntest eax, eax ; +0xbd, 0x18013a94d\njz loc_18013AA19 ; +0xbf, 0x18013a94f\nxor edx, edx; Val ; +0xc5, 0x18013a955\nlea rcx, [rsi+18h]; void * ; +0xc7, 0x18013a957\nmov r8d, 101h; Size ; +0xcb, 0x18013a95b\ncall memset ; +0xd1, 0x18013a961\ncmp [rsp+78h+CPInfo.MaxCharSize], 2 ; +0xd6, 0x18013a966\nmov [rsi+4], edi ; +0xdb, 0x18013a96b\nmov [rsi+220h], rbx ; +0xde, 0x18013a96e\njnz loc_18013AA0F ; +0xe5, 0x18013a975\nlea rcx, [rsp+78h+CPInfo.LeadByte] ; +0xeb, 0x18013a97b\ncmp [rsp+78h+CPInfo.LeadByte], bl ; +0xf0, 0x18013a980\njz short loc_18013A9B2 ; +0xf4, 0x18013a984\ncmp [rcx+1], bl ; +0xf6, 0x18013a986\njz short loc_18013A9B2 ; +0xf9, 0x18013a989\nmovzx eax, byte ptr [rcx+1] ; +0xfb, 0x18013a98b\nmovzx edx, byte ptr [rcx] ; +0xff, 0x18013a98f\ncmp edx, eax ; +0x102, 0x18013a992\nja short loc_18013A9AA ; +0x104, 0x18013a994\nsub eax, edx ; +0x106, 0x18013a996\nlea edi, [rdx+1] ; +0x108, 0x18013a998\nlea edx, [rax+rbp] ; +0x10b, 0x18013a99b\nor byte ptr [rdi+rsi+18h], 4 ; +0x10e, 0x18013a99e\nadd edi, ebp ; +0x113, 0x18013a9a3\nsub rdx, rbp ; +0x115, 0x18013a9a5\njnz short loc_18013A99E ; +0x118, 0x18013a9a8\nadd rcx, 2 ; +0x11a, 0x18013a9aa\ncmp [rcx], bl ; +0x11e, 0x18013a9ae\njnz short loc_18013A986 ; +0x120, 0x18013a9b0\nlea rax, [rsi+1Ah] ; +0x122, 0x18013a9b2\nmov ecx, 0FEh ; +0x126, 0x18013a9b6\nor byte ptr [rax], 8 ; +0x12b, 0x18013a9bb\nadd rax, rbp ; +0x12e, 0x18013a9be\nsub rcx, rbp ; +0x131, 0x18013a9c1\njnz short loc_18013A9BB ; +0x134, 0x18013a9c4\nmov ecx, [rsi+4] ; +0x136, 0x18013a9c6\nsub ecx, 3A4h ; +0x139, 0x18013a9c9\njz short loc_18013A9FF ; +0x13f, 0x18013a9cf\nsub ecx, 4 ; +0x141, 0x18013a9d1\njz short loc_18013A9F6 ; +0x144, 0x18013a9d4\nsub ecx, 0Dh ; +0x146, 0x18013a9d6\njz short loc_18013A9ED ; +0x149, 0x18013a9d9\ncmp ecx, ebp ; +0x14b, 0x18013a9db\njz short loc_18013A9E4 ; +0x14d, 0x18013a9dd\nmov rax, rbx ; +0x14f, 0x18013a9df\njmp short loc_18013AA06 ; +0x152, 0x18013a9e2\nmov rax, cs:off_1801772A0 ; +0x154, 0x18013a9e4\njmp short loc_18013AA06 ; +0x15b, 0x18013a9eb\nmov rax, cs:off_180177298 ; +0x15d, 0x18013a9ed\njmp short loc_18013AA06 ; +0x164, 0x18013a9f4\nmov rax, cs:off_180177290 ; +0x166, 0x18013a9f6\njmp short loc_18013AA06 ; +0x16d, 0x18013a9fd\nmov rax, cs:off_180177288 ; +0x16f, 0x18013a9ff\nmov [rsi+220h], rax ; +0x176, 0x18013aa06\njmp short loc_18013AA11 ; +0x17d, 0x18013aa0d\nmov ebp, ebx ; +0x17f, 0x18013aa0f\nmov [rsi+8], ebp ; +0x181, 0x18013aa11\njmp loc_18013A924 ; +0x184, 0x18013aa14\ncmp cs:dword_1801F55D8, ebx ; +0x189, 0x18013aa19\njnz loc_18013AB1A ; +0x18f, 0x18013aa1f\nor eax, 0FFFFFFFFh ; +0x195, 0x18013aa25\njmp loc_18013AB24 ; +0x198, 0x18013aa28\nxor edx, edx; Val ; +0x19d, 0x18013aa2d\nlea rcx, [rsi+18h]; void * ; +0x19f, 0x18013aa2f\nmov r8d, 101h; Size ; +0x1a3, 0x18013aa33\ncall memset ; +0x1a9, 0x18013aa39\nmov eax, r14d ; +0x1ae, 0x18013aa3e\nlea r9, [r13+10h] ; +0x1b1, 0x18013aa41\nlea r15, unk_1801B1E90 ; +0x1b5, 0x18013aa45\nmov r14d, 4 ; +0x1bc, 0x18013aa4c\nlea r11, [rax+rax*2] ; +0x1c2, 0x18013aa52\nshl r11, 4 ; +0x1c6, 0x18013aa56\nadd r9, r11 ; +0x1ca, 0x18013aa5a\nmov rdx, r9 ; +0x1cd, 0x18013aa5d\ncmp [r9], bl ; +0x1d0, 0x18013aa60\njz short loc_18013AAA3 ; +0x1d3, 0x18013aa63\ncmp [rdx+1], bl ; +0x1d5, 0x18013aa65\njz short loc_18013AAA3 ; +0x1d8, 0x18013aa68\nmovzx r8d, byte ptr [rdx] ; +0x1da, 0x18013aa6a\nmovzx eax, byte ptr [rdx+1] ; +0x1de, 0x18013aa6e\ncmp r8d, eax ; +0x1e2, 0x18013aa72\nja short loc_18013AA9B ; +0x1e5, 0x18013aa75\nlea r10d, [r8+1] ; +0x1e7, 0x18013aa77\ncmp r10d, 101h ; +0x1eb, 0x18013aa7b\njnb short loc_18013AA9B ; +0x1f2, 0x18013aa82\nmov al, [r15] ; +0x1f4, 0x18013aa84\nadd r8d, ebp ; +0x1f7, 0x18013aa87\nor [r10+rsi+18h], al ; +0x1fa, 0x18013aa8a\nadd r10d, ebp ; +0x1ff, 0x18013aa8f\nmovzx eax, byte ptr [rdx+1] ; +0x202, 0x18013aa92\ncmp r8d, eax ; +0x206, 0x18013aa96\njbe short loc_18013AA7B ; +0x209, 0x18013aa99\nadd rdx, 2 ; +0x20b, 0x18013aa9b\ncmp [rdx], bl ; +0x20f, 0x18013aa9f\njnz short loc_18013AA65 ; +0x211, 0x18013aaa1\nadd r9, 8 ; +0x213, 0x18013aaa3\nadd r15, rbp ; +0x217, 0x18013aaa7\nsub r14, rbp ; +0x21a, 0x18013aaaa\njnz short loc_18013AA5D ; +0x21d, 0x18013aaad\nmov [rsi+4], edi ; +0x21f, 0x18013aaaf\nmov [rsi+8], ebp ; +0x222, 0x18013aab2\nsub edi, 3A4h ; +0x225, 0x18013aab5\njz short loc_18013AAE6 ; +0x22b, 0x18013aabb\nsub edi, 4 ; +0x22d, 0x18013aabd\njz short loc_18013AADD ; +0x230, 0x18013aac0\nsub edi, 0Dh ; +0x232, 0x18013aac2\njz short loc_18013AAD4 ; +0x235, 0x18013aac5\ncmp edi, ebp ; +0x237, 0x18013aac7\njnz short loc_18013AAED ; +0x239, 0x18013aac9\nmov rbx, cs:off_1801772A0 ; +0x23b, 0x18013aacb\njmp short loc_18013AAED ; +0x242, 0x18013aad2\nmov rbx, cs:off_180177298 ; +0x244, 0x18013aad4\njmp short loc_18013AAED ; +0x24b, 0x18013aadb\nmov rbx, cs:off_180177290 ; +0x24d, 0x18013aadd\njmp short loc_18013AAED ; +0x254, 0x18013aae4\nmov rbx, cs:off_180177288 ; +0x256, 0x18013aae6\nsub r11, rsi ; +0x25d, 0x18013aaed\nmov [rsi+220h], rbx ; +0x260, 0x18013aaf0\nlea rdx, [rsi+0Ch] ; +0x267, 0x18013aaf7\nmov ecx, 6 ; +0x26b, 0x18013aafb\nlea rdi, [r11+r13] ; +0x270, 0x18013ab00\nmovzx eax, word ptr [rdi+rdx-8] ; +0x274, 0x18013ab04\nmov [rdx], ax ; +0x279, 0x18013ab09\nlea rdx, [rdx+2] ; +0x27c, 0x18013ab0c\nsub rcx, rbp ; +0x280, 0x18013ab10\njnz short loc_18013AB04 ; +0x283, 0x18013ab13\njmp loc_18013A933 ; +0x285, 0x18013ab15\nmov rcx, rsi; struct threadmbcinfostruct * ; +0x28a, 0x18013ab1a\ncall ?setSBCS@@YAXPEAUthreadmbcinfostruct@@@Z ; +0x28d, 0x18013ab1d\nxor eax, eax ; +0x292, 0x18013ab22\nmov rcx, [rsp+78h+var_40] ; +0x294, 0x18013ab24\nxor rcx, rsp; StackCookie ; +0x299, 0x18013ab29\ncall __security_check_cookie ; +0x29c, 0x18013ab2c\nmov rbx, [rsp+78h+arg_10] ; +0x2a1, 0x18013ab31\nadd rsp, 40h ; +0x2a9, 0x18013ab39\npop r15 ; +0x2ad, 0x18013ab3d\npop r14 ; +0x2af, 0x18013ab3f\npop r13 ; +0x2b1, 0x18013ab41\npop r12 ; +0x2b3, 0x18013ab43\npop rdi ; +0x2b5, 0x18013ab45\npop rsi ; +0x2b6, 0x18013ab46\npop rbp ; +0x2b7, 0x18013ab47\nretn ; +0x2b8, 0x18013ab48", "xrefs": ["setmbcp_internal @ 0x18013a67a", " @ 0x180203884", " @ 0x180203890"], "is_objc": false, "is_arm32": false, "is_arm64": false, "bida_info": "8.0.0 @ https://github.com/Stazzical/BromaIDA", "bindings_info": "commit ba9f177b at Thu Jul 16 22:52:06 2026 from https://github.com/geode-sdk/bindings"}