Function at 0x423980
Capabilities:
Query environment variable

Disassembly:
mov ecx, dword [esp + 4]
movzx edx, byte [ecx + 1]
mov eax, dword [esp + 8]
sub esp, 8
push ebx
push ebp
push esi
push edi
cmp eax, edx
jge 0x423ca4
shl eax, 4
add eax, dword [ecx + 8]
mov ebp, eax
cmp byte [ebp], 0
mov dword [esp + 0x14], ebp
je 0x423ca4
mov edi, dword [ebp + 4]
cmp word [edi], 0
jne 0x4239c7
mov eax, dword [ebp + 8]
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc
mov ebx, dword [ebp + 8]
xor esi, esi
test ebx, ebx
je 0x423adc
mov eax, dword [ebx]
test eax, eax
je 0x423adc
mov edi, edi
cmp edi, eax
jae 0x4239ff
cmp esi, 0xfd
jae 0x423a07
mov ax, word [edi]
mov word [esi*2 + 0x4cdba0], ax
add edi, 2
inc esi
cmp edi, dword [ebx]
jb 0x4239e4
cmp esi, 0xfd
jb 0x423a0f
cmp edi, dword [ebx]
jb 0x423b2a
mov ebp, dword [ebx + 4]
movzx eax, byte [ebp + 0x17]
cmp eax, 3
ja case.default.0x423a1b
jmp dword [eax*4 + 0x423cb0]
mov eax, ebp
call fcn.004011c0
cmp dword [0x4cb6c4], 0
jne 0x423a64
cmp dword [ebp + 0xc], 0
jne 0x423a64
mov edx, dword [ebp + 0x18]
push 0
lea ecx, [esp + 0x24]
push ecx
push edx
call dword [sym.imp.KERNEL32.dll_GetEnvironmentVariableW]
test eax, eax
je 0x423a5a
mov dword [0x4cda64], 0
dec eax
jmp 0x423a9f
mov dword [0x4cda64], ebp
xor eax, eax
jmp 0x423a9f
mov eax, dword [ebp + 0xc]
shr eax, 1
jmp 0x423a9f
mov ecx, dword [ebp + 0xc]
push 0
call fcn.0047aa80
jmp 0x423a9f
push 0
mov ecx, 0x4cc4fc
call fcn.00404540
cmp eax, 0xffffffff
jne 0x423a9f
xor eax, eax
jmp 0x423a9f
mov eax, dword [ebp + 0x18]
mov ecx, dword [ebp + 0x10]
push eax
push 0
call ecx
add esp, 8
mov edx, 0xfd
sub edx, esi
cmp eax, edx
ja 0x423b46
mov ecx, dword [ebx + 4]
lea eax, [esi*2 + 0x4cdba0]
push eax
call fcn.0047aa80
movzx ecx, word [ebx + 0xa]
mov ebp, dword [esp + 0x14]
add ebx, 0xc
add esi, eax
mov eax, dword [ebx]
lea edi, [edi + ecx*2]
mov ecx, dword [esp + 0x1c]
test eax, eax
jne 0x4239e0
movzx eax, word [edi]
xor edx, edx
cmp ax, dx
je 0x423b02
cmp esi, 0xfd
jae 0x423b0a
add edi, 2
mov word [esi*2 + 0x4cdba0], ax
movzx eax, word [edi]
inc esi
cmp ax, dx
jne 0x423ae6
cmp esi, 0xfd
jb 0x423b6a
cmp word [edi], dx
je 0x423b6a
mov eax, dword [ebp + 4]
push eax
push edx
push 0x4ab698
call fcn.004309e0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc
mov edx, dword [ebp + 4]
push edx
push 0
push 0x4ab698
call fcn.004309e0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc
mov eax, dword [esp + 0x14]
mov ecx, dword [eax + 4]
push ecx
mov ecx, dword [esp + 0x20]
push 0
push 0x4ab698
call fcn.004309e0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc
cmp esi, edx
jne 0x423b89
mov eax, dword [ebp + 4]
push eax
push edx
push 0x4ab7a0
call fcn.004309e0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc
xor ecx, ecx
test byte [0x4cdb9c], 1
mov word [esi*2 + 0x4cdba0], cx
jne 0x423bcd
or dword [0x4cdb9c], 1
mov dword [0x4cdb88], 0x4cc4d0
mov dword [0x4cdb8c], edx
mov dword [0x4cdb98], 0x4cdba0
mov dword [0x4cdb94], 0x1000400
mov dword [0x4cdb90], edx
cmp byte [esp + 0x24], cl
jne 0x423c28
push 1
push 0x4cdba0
call fcn.0047b140
add esp, 8
test eax, eax
je 0x423ca4
push 0
push 3
push 0
push esi
push 0x4cdba0
mov ecx, 0x4cc518
call fcn.00423d20
test eax, eax
jne 0x423ca6
push 0x4cdba0
call fcn.004244e0
add esp, 4
test eax, eax
jne 0x423c28
mov eax, 0x4cdb80
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc
cmp word [0x4cdba0], 0
je 0x423ca4
lea edx, [esp + 0x24]
push edx
push 3
lea eax, [esp + 0x28]
push eax
push esi
push 0x4cdba0
mov ecx, 0x4cc518
call fcn.00423d20
test eax, eax
jne 0x423c77
mov edx, dword [esp + 0x20]
xor ecx, ecx
cmp byte [esp + 0x24], cl
setne cl
inc ecx
push ecx
push edx
push 0x4cdba0
push 0x4cc518
mov ecx, esi
call fcn.00423fd0
test eax, eax
je 0x423ca4
cmp byte [ebp], 2
jne 0x423ca6
mov cl, byte [eax + 0x17]
test cl, cl
jne 0x423c8a
mov ecx, dword [eax + 0xc]
mov cl, byte [ecx + 0x17]
cmp cl, 2
jbe 0x423ca6
mov ecx, dword [esp + 0x1c]
push 0x4cdba0
push 0
push 0x4aa6b0
call fcn.004309e0
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret 0xc