Function at 0x4219a0
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x20
push ebx
push esi
mov esi, dword [ebp + 0xc]
push edi
mov edi, dword [ebp + 8]
test edi, edi
jne 0x4219bd
push 0x80004005
call fcn.00401970
test esi, esi
je 0x4219b3
cmp edi, esi
je 0x4219b3
mov bl, byte [edi]
xor edx, edx
and dword [ebp - 0x1c], edx
and dword [ebp - 0x14], edx
test bl, bl
lea eax, [esi + 0x823]
mov dword [ebp - 8], edx
mov dword [ebp - 0xc], 1
mov dword [ebp - 0x10], 0x20
mov dword [ebp - 0x20], esi
mov dword [ebp - 0x18], eax
je 0x421c12
inc edi
cmp edx, 0x823
mov dword [ebp + 8], edi
jne 0x421a04
and dword [ebp - 0xc], 0
cmp bl, 0x3a
jne 0x421a7b
test byte [ebp - 0x10], 0x80
je 0x421acd
cmp dword [ebp - 0x14], 0
jne 0x421acd
cmp dword [ebp - 0xc], 0
je 0x421a72
mov eax, esi
sub eax, edx
cmp eax, dword [ebp - 0x20]
mov byte [esi], 0
jb 0x4219b3
cmp eax, dword [ebp - 0x18]
ja 0x4219b3
mov ecx, dword [ebp - 0x18]
sub ecx, eax
inc ecx
push ecx
push eax
call fcn.0048eee6
push eax
call fcn.004017d8
add esp, 0xc
cmp dword [ebp - 8], 4
jne 0x421a72
push 4
lea eax, [esi - 4]
push eax
push 0x4b9af0
call fcn.0048eef9
add esp, 0xc
test eax, eax
jne 0x421a72
mov dword [ebp - 0x1c], 1
mov eax, dword [ebp - 8]
inc eax
mov dword [ebp - 0x14], eax
jmp 0x421acd
cmp bl, 0x25
jne 0x421ab9
test byte [ebp - 0x10], 4
je 0x421acd
mov al, byte [edi]
test al, al
je 0x421c04
inc edi
mov cl, byte [edi]
test cl, cl
mov byte [ebp - 1], cl
je 0x421c04
inc edi
mov dword [ebp + 8], edi
call fcn.00421874
mov bx, ax
mov al, byte [ebp - 1]
shl bl, 4
call fcn.00421874
add bl, al
jmp 0x421acd
cmp bl, 0x3f
je 0x421ac3
cmp bl, 0x23
jne 0x421acd
test byte [ebp - 0x10], 0x20
je 0x421acd
or dword [ebp - 0x10], 2
mov eax, dword [ebp - 0x10]
test al, al
jns 0x421b37
test al, 2
jne 0x421b37
cmp bl, 0x5c
jne 0x421afe
xor ecx, ecx
cmp dword [ebp - 0x14], ecx
jne 0x421aea
test ax, 0x100
je 0x421b37
cmp dword [ebp - 0xc], ecx
je 0x421b37
cmp dword [ebp - 0x1c], ecx
je 0x421afa
cmp dword [ebp - 8], 7
jae 0x421b37
mov bl, 0x2f
jmp 0x421b37
cmp bl, 0x2e
jne 0x421b37
mov ecx, dword [ebp - 8]
test ecx, ecx
jbe 0x421b37
test al, 8
jne 0x421b37
push dword [ebp - 0x14]
lea edx, [ebp + 0xc]
push eax
lea eax, [ebp - 8]
push eax
lea eax, [ebp + 8]
push eax
lea eax, [esi - 1]
push edx
call fcn.004218d6
mov esi, dword [ebp + 0xc]
mov edi, dword [ebp + 8]
add esp, 0x14
test eax, eax
jne 0x421bf7
movzx ecx, bl
cmp ecx, 0x40
jg 0x421b5f
cmp ecx, 0x3b
jge 0x421b80
cmp ecx, 0x20
je 0x421b80
cmp ecx, 0x21
jle 0x421b76
cmp ecx, 0x26
jle 0x421b80
cmp ecx, 0x2a
jle 0x421b76
cmp ecx, 0x2c
jle 0x421b80
jmp 0x421b76
cmp ecx, 0x5b
jl 0x421b76
cmp ecx, 0x5e
jle 0x421b80
cmp ecx, 0x60
je 0x421b80
lea eax, [ecx - 0x7b]
cmp eax, 2
jbe 0x421b80
cmp bl, 0x20
jb 0x421b80
cmp bl, 0x7e
jbe 0x421be8
mov al, byte [ebp - 0x10]
test al, 2
jne 0x421be8
test al, 0x10
je 0x421b90
cmp bl, 0x20
jne 0x421be8
test al, 8
je 0x421b99
cmp bl, 0x2e
je 0x421be8
test al, 0x40
jne 0x421ba2
cmp bl, 0x25
je 0x421be8
cmp dword [ebp - 8], 0x820
jb 0x421baf
and dword [ebp - 0xc], 0
cmp dword [ebp - 0xc], 0
je 0x421be2
cmp bl, 0x10
mov byte [esi], 0x25
lea eax, [esi + 1]
jae 0x421bc4
mov byte [eax], 0x30
inc eax
mov edx, dword [ebp - 0x18]
push 0x10
sub edx, eax
push edx
push eax
push ecx
call fcn.0048f0e0
push eax
call fcn.004017d8
add esp, 0x14
add esi, 3
mov dword [ebp + 0xc], esi
add dword [ebp - 8], 2
jmp 0x421bf4
cmp dword [ebp - 0xc], 0
je 0x421bf4
mov byte [esi], bl
inc esi
mov dword [ebp + 0xc], esi
inc dword [ebp - 8]
mov bl, byte [edi]
test bl, bl
mov edx, dword [ebp - 8]
jne 0x4219f4
cmp dword [ebp - 0xc], 0
je 0x421c15
cmp edx, 0x823
jae 0x421c15
mov byte [esi], 0
mov eax, dword [ebp + 0x10]
test eax, eax
pop edi
pop esi
pop ebx
je 0x421c24
lea ecx, [edx + 1]
mov dword [eax], ecx
inc edx
cmp edx, 0x823
jbe 0x421c31
and dword [ebp - 0xc], 0
mov eax, dword [ebp - 0xc]
leave
ret