Function at 0x454ae0
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14
mov eax, dword [ebp + 0x10]
push ebx
mov ebx, dword [ebp + 8]
push esi
mov edx, dword [eax]
lea esi, [ebx + 0x88]
mov eax, dword [esi + 0x4c]
push edi
push edx
push 0xa
push eax
mov dword [ebp - 0x10], edx
mov edi, edx
mov dword [ebp - 0x14], eax
mov dword [ebp + 8], eax
mov dword [ebp - 0xc], edx
call fcn.0061a2e0
mov ecx, eax
add esp, 0xc
test ecx, ecx
je 0x45547f
nop
mov eax, dword [esi + 0x4c]
sub edi, ecx
mov edx, dword [ebp + 0x10]
dec eax
add eax, edi
lea edi, [ebx + 0x8b0]
mov dword [edx], eax
lea eax, [ecx + 1]
mov ecx, dword [ebp + 8]
mov dword [esi + 0x4c], eax
sub eax, ecx
push eax
push ecx
push edi
call fcn.00442c40
add esp, 0xc
test eax, eax
jne 0x454bab
cmp dword [esi + 0x48], eax
jne 0x454bb2
push edi
call fcn.00442cb0
add esp, 4
push eax
push edi
call fcn.00442cc0
mov edi, dword [ebp + 0xc]
add esp, 4
push eax
push edi
push ebx
call fcn.00455d50
add esp, 0x10
cmp eax, 2
jne 0x454bb5
push eax
push edi
call fcn.0044c5b0
add esp, 8
cmp byte [ebx + 0x6ec], 0
je 0x4554fc
mov eax, dword [ebp + 0x10]
mov byte [esi + 0xba], 0
cmp dword [eax], 0
je 0x455311
mov dword [esi + 0x44], 1
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov edi, dword [ebp + 0xc]
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cc0
mov edx, eax
add esp, 4
mov dword [ebp - 8], edx
mov cl, byte [edx]
cmp cl, 0xa
je 0x454f8a
cmp cl, 0xd
je 0x454f8a
mov ecx, dword [esi + 0x48]
mov dword [ebp + 8], 4
lea eax, [ecx + 1]
mov dword [esi + 0x48], eax
test ecx, ecx
jne 0x454eed
mov eax, dword [edi + 0x1e8]
mov eax, dword [eax + 0x44]
test al, 3
je 0x454dfb
mov al, byte [edx]
mov edi, edx
test al, al
je 0x454c20
nop
cmp al, 0x20
je 0x454c18
cmp al, 9
jne 0x454c20
mov al, byte [edi + 1]
inc edi
test al, al
jne 0x454c10
push 5
push str.HTTP_
push edi
call fcn.0062c440
add esp, 0xc
test eax, eax
jne 0x454cca
mov cl, byte [edi + 5]
mov al, cl
cmp al, 0x31
je 0x454d0c
sub al, 0x32
cmp al, 1
ja 0x45532c
mov al, byte [edi + 6]
cmp al, 0x20
je 0x454c5a
cmp al, 9
jne 0x454cca
movsx eax, cl
mov cl, byte [edi + 7]
sub eax, 0x30
lea edx, [eax + eax*4]
mov al, cl
add edx, edx
sub al, 0x30
mov dword [ebp - 0xc], edx
cmp al, 9
ja 0x454cca
mov al, byte [edi + 8]
mov byte [ebp + 0xb], al
sub al, 0x30
cmp al, 9
ja 0x454cca
mov al, byte [edi + 9]
mov byte [ebp - 1], al
sub al, 0x30
cmp al, 9
ja 0x454cca
movsx eax, cl
lea ecx, [eax + eax*4]
movsx eax, byte [ebp + 0xb]
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, byte [ebp - 1]
lea ecx, [ecx - 0xa68]
lea ecx, [eax + ecx*2]
mov dword [esi + 0x58], ecx
mov al, byte [edi + 0xa]
cmp al, 0x20
je 0x454da3
cmp al, 9
je 0x454da3
cmp al, 0xa
jl 0x454cca
cmp al, 0xd
jle 0x454da3
lea edi, [ebx + 0x8b0]
push edi
call fcn.00442cb0
add esp, 4
push eax
push edi
call fcn.00442cc0
add esp, 4
push eax
push ebx
call fcn.00455c90
add esp, 0xc
cmp eax, 1
jne 0x4553bd
mov edi, dword [ebp + 0xc]
mov dword [esi + 0x58], 0xc8
mov byte [edi + 0x335], 0xa
jmp 0x454ed4
cmp byte [edi + 6], 0x2e
jne 0x455397
mov al, byte [edi + 7]
cmp al, 0x30
je 0x454d25
cmp al, 0x31
jne 0x455397
mov cl, byte [edi + 8]
cmp cl, 0x20
je 0x454d36
cmp cl, 9
jne 0x455397
mov cl, byte [edi + 9]
movsx edx, al
mov al, cl
sub edx, 0x26
sub al, 0x30
mov dword [ebp - 0xc], edx
cmp al, 9
ja 0x455397
mov al, byte [edi + 0xa]
mov byte [ebp + 0xb], al
sub al, 0x30
cmp al, 9
ja 0x455397
mov al, byte [edi + 0xb]
mov byte [ebp - 1], al
sub al, 0x30
cmp al, 9
ja 0x455397
movsx eax, cl
lea ecx, [eax + eax*4]
movsx eax, byte [ebp + 0xb]
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, byte [ebp - 1]
lea ecx, [ecx - 0xa68]
lea ecx, [eax + ecx*2]
mov dword [esi + 0x58], ecx
mov al, byte [edi + 0xc]
cmp al, 0x20
je 0x454da3
cmp al, 9
je 0x454da3
sub al, 0xa
cmp al, 3
ja 0x455397
cmp ecx, 0x64
jl 0x45537d
lea eax, [edx - 0xa]
cmp eax, 1
ja 0x455346
mov edi, dword [ebp + 0xc]
mov al, dl
mov byte [edi + 0x335], dl
cmp dword [esi + 0x74], 3
jne 0x454de2
cmp dl, 0x14
je 0x454de2
push str.Lying_server__not_serving_HTTP_2
push ebx
call fcn.0044b6a0
mov al, byte [edi + 0x335]
add esp, 8
cmp al, 0x14
jae 0x454ed4
mov eax, dword [edi + 0x308]
mov dword [eax], 0xffffffff
jmp 0x454ed4
test eax, 0x40000
je 0x4553bd
mov al, byte [edx]
mov edi, edx
test al, al
je 0x454e20
nop
cmp al, 0x20
je 0x454e18
cmp al, 9
jne 0x454e20
mov al, byte [edi + 1]
inc edi
test al, al
jne 0x454e10
push 5
push str.RTSP_
push edi
call fcn.0062c440
add esp, 0xc
test eax, eax
jne 0x4553bd
mov al, byte [edi + 5]
sub al, 0x30
cmp al, 9
ja 0x4553b1
cmp byte [edi + 6], 0x2e
jne 0x4553b1
mov al, byte [edi + 7]
sub al, 0x30
cmp al, 9
ja 0x4553b1
mov al, byte [edi + 8]
cmp al, 0x20
je 0x454e6b
cmp al, 9
jne 0x4553b1
mov cl, byte [edi + 9]
mov al, cl
sub al, 0x30
cmp al, 9
ja 0x4553b1
mov dl, byte [edi + 0xa]
mov al, dl
sub al, 0x30
cmp al, 9
ja 0x4553b1
mov dh, byte [edi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x4553b1
movsx eax, cl
lea ecx, [eax + eax*4]
movsx eax, dl
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, dh
lea eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [esi + 0x58], eax
mov al, byte [edi + 0xc]
cmp al, 0x20
je 0x454eca
cmp al, 9
je 0x454eca
sub al, 0xa
cmp al, 3
ja 0x4553b1
mov edi, dword [ebp + 0xc]
mov byte [edi + 0x335], 0xb
push edi
push ebx
call fcn.004558f0
add esp, 8
test eax, eax
jne 0x454bab
mov dword [ebp + 8], 0xc
push ebx
call fcn.00456600
add esp, 4
test eax, eax
jne 0x454bab
push dword [ebp - 8]
push edi
push ebx
call fcn.00453b90
add esp, 0xc
test eax, eax
jne 0x454bab
mov edi, dword [esi + 0x58]
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cb0
push eax
push dword [ebp - 8]
push 1
push ebx
call fcn.0044b550
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cb0
mov ecx, dword [ebp + 8]
push eax
push dword [ebp - 8]
lea eax, [edi - 0x64]
or ecx, 0x20
cmp eax, 0x64
cmovae ecx, dword [ebp + 8]
push ecx
push ebx
call fcn.0044b9b0
add esp, 0x28
test eax, eax
jne 0x454bab
push eax
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cb0
add esp, 4
push eax
push ebx
call fcn.00452650
add esp, 0xc
test eax, eax
jne 0x454bab
mov edi, dword [ebp + 0xc]
jmp 0x4552c8
mov ecx, dword [esi + 0x58]
lea eax, [ecx - 0x64]
cmp eax, 0x63
ja 0x454ff8
sub ecx, 0x64
je 0x454fc8
sub ecx, 1
je 0x454fb2
mov byte [esi + 0xba], 1
mov dword [esi + 0x48], 0
jmp 0x455063
cmp dword [esi + 0x74], 2
je 0x4553cd
mov byte [esi + 0xba], 0
jmp 0x455063
cmp dword [esi + 0x70], 0
mov byte [esi + 0xba], 1
mov dword [esi + 0x48], 0
jle 0x455063
or dword [esi + 0x5c], 2
push 0
push ebx
mov dword [esi + 0x70], 0
call fcn.0043cff0
add esp, 8
jmp 0x455063
cmp dword [esi + 0x74], 2
jne 0x455009
push dword [ebx + 0x7c]
call fcn.0043d0d0
add esp, 4
mov eax, dword [esi]
xor cl, cl
and eax, dword [esi + 4]
mov byte [esi + 0xba], 0
cmp eax, 0xffffffff
jne 0x455069
cmp byte [esi + 0xbf], cl
jne 0x455069
cmp byte [edi + 0x1ce], cl
jne 0x455069
cmp byte [edi + 0x335], 0xb
jne 0x455069
mov eax, dword [edi + 0x1e8]
test dword [eax + 0x44], 0x40000
jne 0x455069
cmp byte [ebx + 0xd86], 5
je 0x455069
push str.no_chunk__no_close__no_size._Assume_close_to_signal_end
push ebx
call fcn.0044b6a0
push 2
push edi
call fcn.0044c5b0
add esp, 0x10
mov cl, byte [esi + 0xba]
test cl, cl
jne 0x45507e
push ebx
call fcn.00455820
add esp, 4
test eax, eax
jne 0x454bab
cmp byte [edi + 0x1ce], 0
je 0x4550c4
mov eax, dword [ebx + 0xe0]
cmp eax, 0x191
jne 0x45509f
cmp dword [edi + 0x220], 2
je 0x4550af
jmp 0x4550c4
cmp eax, 0x197
jne 0x4550c4
cmp dword [edi + 0x224], 2
jne 0x4550c4
push str.Connection_closure_while_negotiating_auth__HTTP_1.0__
push ebx
call fcn.0044b6a0
add esp, 8
mov byte [ebx + 0xd8d], 1
mov eax, dword [esi + 0x58]
sub eax, 0x64
cmp eax, 0x64
lea eax, [ebx + 0x8b0]
push eax
sbb edi, edi
and edi, 0x20
add edi, 4
call fcn.00442cb0
add esp, 4
mov dword [ebp - 0xc], eax
push eax
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cc0
add esp, 4
push eax
push edi
push ebx
call fcn.0044b9b0
add esp, 0x10
test eax, eax
jne 0x454bab
push eax
push dword [ebp - 0xc]
push ebx
call fcn.00452650
add esp, 0xc
test eax, eax
jne 0x454bab
mov edi, dword [esi + 0x58]
push ebx
call fcn.004561b0
add esp, 4
test al, al
jne 0x455464
lea eax, [edi - 0x64]
cmp eax, 0x63
ja 0x455143
mov eax, dword [ebx + 0xc0]
jmp 0x455145
xor eax, eax
push ebx
mov dword [ebx + 0xc8], eax
call fcn.00452b70
add esp, 4
test eax, eax
jne 0x454bab
cmp dword [esi + 0x58], 0x12c
mov edi, dword [ebp + 0xc]
jl 0x4552bb
cmp byte [edi + 0x1d8], al
jne 0x455297
cmp byte [edi + 0x1ce], al
jne 0x455297
cmp byte [ebx + 0xd9b], al
jne 0x4552a0
mov al, byte [ebx + 0xd86]
dec al
cmp al, 3
ja 0x455297
push 0
push ebx
call fcn.0043cff0
add esp, 8
cmp byte [esi + 0xbc], 0
jne 0x455297
cmp dword [esi + 0x58], 0x1a1
jne 0x455232
cmp byte [ebx + 0xd8f], 0
je 0x455232
mov eax, dword [esi + 0x18]
or eax, dword [esi + 0x1c]
jne 0x4551e8
cmp dword [esi + 0x70], 1
jne 0x4551e8
push str.Got_HTTP_failure_417_while_waiting_for_a_100
push ebx
call fcn.0044b6a0
add esp, 8
jmp 0x45520d
push str.Got_HTTP_failure_417_while_sending_data
push ebx
call fcn.0044b6a0
push 2
push edi
call fcn.0044c5b0
push edi
push ebx
call fcn.00456010
add esp, 0x18
test eax, eax
jne 0x454bab
push dword [ebx + 0xcdc]
mov byte [ebx + 0xd90], 1
call dword [0x6a500c]
push esi
push ebx
mov dword [ebx + 0x118], eax
call fcn.004575d0
add esp, 0xc
jmp 0x455297
cmp byte [ebx + 0x6cb], 0
je 0x45525c
push str.HTTP_error_before_end_of_send__keep_sending
push ebx
call fcn.0044b6a0
add esp, 8
cmp dword [esi + 0x70], 0
jle 0x455297
or dword [esi + 0x5c], 2
mov dword [esi + 0x70], 0
jmp 0x455297
push str.HTTP_error_before_end_of_send__stop_sending
push ebx
call fcn.0044b6a0
push 2
push edi
call fcn.0044c5b0
push esi
push ebx
call fcn.004575d0
add esp, 0x18
test eax, eax
jne 0x454bab
mov byte [esi + 0xbc], 1
cmp byte [ebx + 0xd8f], al
je 0x455297
mov dword [esi + 0x70], 3
cmp byte [ebx + 0xd9b], 0
je 0x4552bb
cmp dword [edi + 0x204], 0xffffffff
je 0x4552bb
push str.Keep_sending_data_to_get_tossed_away
push ebx
call fcn.0044b6a0
add esp, 8
or dword [esi + 0x5c], 2
cmp byte [esi + 0xba], 0
je 0x4553fc
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cd0
mov eax, dword [esi + 0x4c]
add esp, 4
cmp byte [eax], 0
je 0x454ba9
mov ecx, eax
mov eax, dword [ebp + 0x10]
mov dword [ebp + 8], ecx
mov eax, dword [eax]
push eax
push 0xa
push ecx
mov dword [ebp - 8], eax
mov dword [ebp - 0xc], eax
call fcn.0061a2e0
mov ecx, eax
add esp, 0xc
test ecx, ecx
je 0x455482
mov edi, dword [ebp - 8]
jmp 0x454b20
mov ecx, dword [ebp - 0x10]
mov dword [esi + 0x44], 2
mov dword [eax], ecx
mov eax, dword [ebp - 0x14]
pop edi
mov dword [esi + 0x4c], eax
xor eax, eax
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.Unsupported_HTTP_version_in_response
push ebx
call fcn.0044b5e0
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, 0x66666667
imul edx
sar edx, 2
mov ecx, edx
shr ecx, 0x1f
add ecx, edx
mov edx, dword [ebp - 0xc]
lea eax, [ecx + ecx*4]
add eax, eax
sub edx, eax
push edx
push ecx
push str.Unsupported_HTTP_version___u._d__in_response
push ebx
call fcn.0044b5e0
add esp, 0x10
mov eax, 1
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.Unsupported_response_code_in_HTTP_response
push ebx
call fcn.0044b5e0
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.Unsupported_HTTP_1_subversion_in_response
push ebx
call fcn.0044b5e0
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
pop edi
pop esi
mov eax, 8
pop ebx
mov esp, ebp
pop ebp
ret
pop edi
mov byte [esi + 0xba], 0
xor eax, eax
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.Received_101__Switching_to_HTTP_2
push ebx
call fcn.0044b6a0
add esp, 8
mov dword [esi + 0x74], 3
mov byte [esi + 0xba], 1
mov eax, 1
mov dword [esi + 0x48], 0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
cmp byte [ebx + 0x14c], 0
mov ecx, dword [ebp + 0x14]
jne 0x45542d
mov eax, dword [edi + 0x1e8]
test dword [eax + 0x44], 0x40000
je 0x455430
cmp dword [ebx + 0x660], 2
jne 0x455430
cmp dword [esi + 4], 0xffffffff
jg 0x455430
jl 0x45542d
cmp dword [esi], 0xffffffff
ja 0x455430
mov byte [ecx], 1
cmp dword [esi + 8], 0
jne 0x455441
cmp dword [esi + 0xc], 0
jne 0x455441
mov byte [ecx], 1
jmp 0x455446
cmp byte [ecx], 0
je 0x45544a
and dword [esi + 0x5c], 0xfffffffe
push dword [ebp - 0xc]
push dword [ebp + 8]
push 1
push ebx
call fcn.0044b550
add esp, 0x10
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push edi
push str.The_requested_URL_returned_error:__d
push ebx
call fcn.0044b5e0
add esp, 0xc
mov eax, 0x16
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov edi, dword [ebp + 0xc]
push dword [ebp - 0xc]
lea eax, [ebx + 0x8b0]
push dword [ebp + 8]
push eax
call fcn.00442c40
add esp, 0xc
test eax, eax
jne 0x454bab
cmp dword [esi + 0x48], eax
jne 0x454ba9
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cb0
add esp, 4
push eax
lea eax, [ebx + 0x8b0]
push eax
call fcn.00442cc0
add esp, 4
push eax
push edi
push ebx
call fcn.00455d50
add esp, 0x10
cmp eax, 2
jne 0x454ba9
push eax
push edi
mov byte [esi + 0xba], 0
mov dword [esi + 0x44], eax
call fcn.0044c5b0
add esp, 8
cmp byte [ebx + 0x6ec], 0
jne 0x454ba9
push str.Received_HTTP_0.9_when_not_allowed
push ebx
call fcn.0044b5e0
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret