Function at 0xa20c90
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x18
mov ecx, dword [ebp + 0x10]
push ebx
mov ebx, dword [ebp + 0xc]
push esi
mov esi, dword [ebp + 8]
mov eax, dword [ecx]
push edi
lea edi, [esi + 0x80]
mov dword [ebp - 0x14], eax
mov eax, dword [edi + 0x50]
mov dword [ebp + 8], eax
mov dword [ebp - 0x18], eax
push dword [ecx]
push 0xa
push eax
call fcn.00a587e0
add esp, 0xc
test eax, eax
je 0xa216d1
mov ecx, dword [edi + 0x50]
lea ebx, [esi + 0x89c]
mov edx, dword [ebp + 0x10]
sub ecx, eax
dec ecx
inc eax
add dword [edx], ecx
mov ecx, dword [ebp + 8]
mov dword [edi + 0x50], eax
sub eax, ecx
push eax
push ecx
push ebx
call fcn.00a0e810
add esp, 0xc
test eax, eax
jne 0xa20d52
cmp dword [edi + 0x4c], eax
jne 0xa20d59
push ebx
call fcn.00a502a0
add esp, 4
push eax
push ebx
call fcn.00a0e930
mov ebx, dword [ebp + 0xc]
add esp, 4
push eax
push ebx
push esi
call fcn.00a21e70
add esp, 0x10
cmp eax, 2
jne 0xa20d5c
push eax
push ebx
call fcn.00a18d00
add esp, 8
cmp byte [esi + 0x6e5], 0
je 0xa2174d
mov ecx, dword [ebp + 0x10]
mov byte [edi + 0xc2], 0
cmp dword [ecx], 0
je 0xa21561
mov dword [edi + 0x48], 1
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ebx, dword [ebp + 0xc]
lea eax, [esi + 0x89c]
push eax
call fcn.00a0e930
mov edx, eax
add esp, 4
mov dword [ebp - 8], edx
mov cl, byte [edx]
cmp cl, 0xa
je 0xa21193
cmp cl, 0xd
je 0xa21193
mov ecx, dword [edi + 0x4c]
mov dword [ebp + 8], 2
lea eax, [ecx + 1]
mov dword [edi + 0x4c], eax
test ecx, ecx
jne 0xa210cf
mov eax, dword [ebx + 0x1e0]
mov eax, dword [eax + 0x44]
test al, 3
je 0xa20fba
mov al, byte [edx]
mov ebx, edx
test al, al
je 0xa20dc5
cmp al, 0x20
je 0xa20dbd
cmp al, 9
jne 0xa20dc5
mov al, byte [ebx + 1]
inc ebx
test al, al
jne 0xa20db5
push 5
push str.HTTP_
push ebx
call fcn.00a664a0
add esp, 0xc
test eax, eax
jne 0xa20e74
mov cl, byte [ebx + 5]
mov al, cl
cmp al, 0x31
je 0xa20eb6
sub al, 0x32
cmp al, 1
ja 0xa2157c
mov al, byte [ebx + 6]
cmp al, 0x20
je 0xa20dff
cmp al, 9
jne 0xa20e74
movsx eax, cl
mov cl, byte [ebx + 7]
sub eax, 0x30
lea edx, [eax + eax*4]
add edx, edx
mov dword [ebp - 0x10], edx
cmp cl, 0x30
jl 0xa20e74
cmp cl, 0x39
jg 0xa20e74
mov al, byte [ebx + 8]
mov byte [ebp + 0xb], al
cmp al, 0x30
jl 0xa20e74
cmp al, 0x39
jg 0xa20e74
mov al, byte [ebx + 9]
mov byte [ebp - 1], al
cmp al, 0x30
jl 0xa20e74
cmp al, 0x39
jg 0xa20e74
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 eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [edi + 0x60], eax
mov al, byte [ebx + 0xa]
cmp al, 0x20
je 0xa20f64
cmp al, 9
je 0xa20f64
cmp al, 0xa
jl 0xa20e74
cmp al, 0xd
jle 0xa20f64
lea ebx, [esi + 0x89c]
push ebx
call fcn.00a502a0
add esp, 4
push eax
push ebx
call fcn.00a0e930
add esp, 4
push eax
push esi
call fcn.00a21db0
add esp, 0xc
cmp eax, 1
jne 0xa2160d
mov ebx, dword [ebp + 0xc]
mov dword [edi + 0x60], 0xc8
mov byte [ebx + 0x44d], 0xa
jmp 0xa210b6
cmp byte [ebx + 6], 0x2e
jne 0xa215e7
mov al, byte [ebx + 7]
cmp al, 0x30
je 0xa20ecf
cmp al, 0x31
jne 0xa215e7
mov cl, byte [ebx + 8]
cmp cl, 0x20
je 0xa20ee0
cmp cl, 9
jne 0xa215e7
mov cl, byte [ebx + 9]
movsx edx, al
sub edx, 0x26
mov dword [ebp - 0x10], edx
cmp cl, 0x30
jl 0xa215e7
cmp cl, 0x39
jg 0xa215e7
mov al, byte [ebx + 0xa]
mov byte [ebp + 0xb], al
cmp al, 0x30
jl 0xa215e7
cmp al, 0x39
jg 0xa215e7
mov al, byte [ebx + 0xb]
mov byte [ebp - 1], al
cmp al, 0x30
jl 0xa215e7
cmp al, 0x39
jg 0xa215e7
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 eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [edi + 0x60], eax
mov al, byte [ebx + 0xc]
cmp al, 0x20
je 0xa20f64
cmp al, 9
je 0xa20f64
cmp al, 0xa
jl 0xa215e7
cmp al, 0xd
jg 0xa215e7
cmp dword [edi + 0x60], 0x64
jl 0xa215cd
lea eax, [edx - 0xa]
cmp eax, 1
ja 0xa21596
mov ebx, dword [ebp + 0xc]
mov byte [ebx + 0x44d], dl
cmp dword [edi + 0x7c], 3
jne 0xa20f9c
cmp dl, 0x14
je 0xa20f9c
push str.Lying_server__not_serving_HTTP_2
push esi
call fcn.00a18090
add esp, 8
cmp byte [ebx + 0x44d], 0x14
jae 0xa210b6
mov eax, dword [ebx + 0x420]
mov dword [eax], 0xffffffff
jmp 0xa210b6
test eax, 0x40000
je 0xa2160d
mov al, byte [edx]
mov ebx, edx
test al, al
je 0xa20fe0
nop dword [eax]
cmp al, 0x20
je 0xa20fd8
cmp al, 9
jne 0xa20fe0
mov al, byte [ebx + 1]
inc ebx
test al, al
jne 0xa20fd0
push 5
push str.RTSP_
push ebx
call fcn.00a664a0
add esp, 0xc
test eax, eax
jne 0xa2160d
mov al, byte [ebx + 5]
cmp al, 0x30
jl 0xa21601
cmp al, 0x39
jg 0xa21601
cmp byte [ebx + 6], 0x2e
jne 0xa21601
mov al, byte [ebx + 7]
cmp al, 0x30
jl 0xa21601
cmp al, 0x39
jg 0xa21601
mov al, byte [ebx + 8]
cmp al, 0x20
je 0xa21037
cmp al, 9
jne 0xa21601
mov al, byte [ebx + 9]
cmp al, 0x30
jl 0xa21601
cmp al, 0x39
jg 0xa21601
mov dh, byte [ebx + 0xa]
cmp dh, 0x30
jl 0xa21601
cmp dh, 0x39
jg 0xa21601
mov dl, byte [ebx + 0xb]
cmp dl, 0x30
jl 0xa21601
cmp dl, 0x39
jg 0xa21601
movsx eax, al
lea ecx, [eax + eax*4]
movsx eax, dh
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, dl
lea eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [edi + 0x60], eax
mov al, byte [ebx + 0xc]
cmp al, 0x20
je 0xa210ac
cmp al, 9
je 0xa210ac
cmp al, 0xa
jl 0xa21601
cmp al, 0xd
jg 0xa21601
mov ebx, dword [ebp + 0xc]
mov byte [ebx + 0x44d], 0xb
push ebx
push esi
call fcn.00a21a10
add esp, 8
test eax, eax
jne 0xa20d52
mov dword [ebp + 8], 6
push esi
call fcn.00a22770
add esp, 4
test eax, eax
jne 0xa20d52
push dword [ebp - 8]
push ebx
push esi
call fcn.00a1fbd0
add esp, 0xc
test eax, eax
jne 0xa20d52
mov ebx, dword [ebp + 8]
mov edi, dword [edi + 0x60]
or ebx, 1
cmp byte [esi + 0x6c7], al
lea eax, [esi + 0x89c]
push eax
cmove ebx, dword [ebp + 8]
sub edi, 0x64
call fcn.00a502a0
push eax
push dword [ebp - 8]
push 1
push esi
call fcn.00a17f40
lea eax, [esi + 0x89c]
push eax
call fcn.00a502a0
push eax
push dword [ebp - 8]
mov eax, ebx
or eax, 0x10
cmp edi, 0x64
cmovae eax, ebx
push eax
push esi
call fcn.00a18110
add esp, 0x28
test eax, eax
jne 0xa20d52
lea ebx, [esi + 0x89c]
push ebx
call fcn.00a502a0
add dword [esi + 0xd80], eax
push ebx
adc dword [esi + 0xd84], 0
call fcn.00a502a0
add dword [esi + 0xa0], eax
push ebx
adc dword [esi + 0xa4], 0
call fcn.00a0e880
mov ebx, dword [ebp + 0xc]
lea edi, [esi + 0x80]
add esp, 0xc
jmp 0xa2154a
mov eax, dword [edi + 0x60]
cmp eax, 0x64
jl 0xa21201
cmp eax, 0xc7
jg 0xa21201
sub eax, 0x64
je 0xa211d5
sub eax, 1
je 0xa211bf
mov byte [edi + 0xc2], 1
mov dword [edi + 0x4c], 0
jmp 0xa2125b
cmp dword [edi + 0x7c], 2
je 0xa2161d
mov byte [edi + 0xc2], 0
jmp 0xa2125b
cmp dword [edi + 0x78], 0
mov byte [edi + 0xc2], 1
mov dword [edi + 0x4c], 0
jle 0xa2125b
or dword [edi + 0x64], 2
push 0
push esi
mov dword [edi + 0x78], 0
call fcn.00a08e50
add esp, 8
jmp 0xa2125b
mov eax, dword [edi]
and eax, dword [edi + 4]
mov byte [edi + 0xc2], 0
cmp eax, 0xffffffff
jne 0xa2125b
cmp byte [edi + 0xc7], 0
jne 0xa2125b
cmp byte [ebx + 0x1c6], 0
jne 0xa2125b
cmp byte [ebx + 0x44d], 0xb
jne 0xa2125b
mov eax, dword [ebx + 0x1e0]
test dword [eax + 0x44], 0x40000
jne 0xa2125b
cmp byte [esi + 0xd46], 5
je 0xa2125b
push str.no_chunk__no_close__no_size._Assume_close_to_signal_end
push esi
call fcn.00a18090
push 2
push ebx
call fcn.00a18d00
add esp, 0x10
cmp byte [edi + 0xc2], 0
jne 0xa21275
push esi
call fcn.00a21940
add esp, 4
test eax, eax
jne 0xa20d52
cmp byte [ebx + 0x1c6], 0
je 0xa21301
mov eax, dword [esi + 0xe0]
cmp eax, 0x191
jne 0xa21298
cmp dword [ebx + 0x250], 2
je 0xa212a8
cmp eax, 0x197
jne 0xa212bd
cmp dword [ebx + 0x254], 2
jne 0xa212bd
push str.Connection_closure_while_negotiating_auth__HTTP_1.0__
push esi
call fcn.00a18090
add esp, 8
mov byte [esi + 0xd4d], 1
cmp byte [ebx + 0x1c6], 0
je 0xa21301
mov eax, dword [esi + 0xe0]
cmp eax, 0x191
jne 0xa212dc
cmp dword [ebx + 0x2d8], 1
je 0xa212ec
cmp eax, 0x197
jne 0xa21301
cmp dword [ebx + 0x2dc], 1
jne 0xa21301
push str.Connection_closure_while_negotiating_auth__HTTP_1.0__
push esi
call fcn.00a18090
add esp, 8
mov byte [esi + 0xd4d], 1
cmp dword [ebx + 0x2d8], 3
jne 0xa21320
cmp dword [esi + 0xe0], 0x191
je 0xa21320
mov dword [ebx + 0x2d8], 4
cmp dword [ebx + 0x2dc], 3
jne 0xa2133f
cmp dword [esi + 0xe0], 0x197
je 0xa2133f
mov dword [ebx + 0x2dc], 4
mov eax, dword [edi + 0x60]
xor ebx, ebx
cmp byte [esi + 0x6c7], bl
setne bl
sub eax, 0x64
add ebx, 2
cmp eax, 0x64
sbb eax, eax
and eax, 0x10
or ebx, eax
lea eax, [esi + 0x89c]
push eax
call fcn.00a502a0
add esp, 4
mov dword [ebp - 0x10], eax
push eax
lea eax, [esi + 0x89c]
push eax
call fcn.00a0e930
add esp, 4
push eax
push ebx
push esi
call fcn.00a18110
add esp, 0x10
test eax, eax
jne 0xa20d52
mov eax, dword [ebp - 0x10]
cdq
add dword [esi + 0xd80], eax
push esi
adc dword [esi + 0xd84], edx
add dword [esi + 0xa0], eax
adc dword [esi + 0xa4], edx
call fcn.00a22320
add esp, 4
test al, al
jne 0xa216b4
mov eax, dword [edi + 0x60]
cmp eax, 0x64
jl 0xa213dc
cmp eax, 0xc7
jg 0xa213dc
mov eax, dword [esi + 0xa0]
mov ecx, dword [esi + 0xa4]
jmp 0xa213ea
xorps xmm0, xmm0
movlpd qword [ebp - 0xc], xmm0
mov ecx, dword [ebp - 8]
mov eax, dword [ebp - 0xc]
push esi
mov dword [esi + 0xa8], eax
mov dword [esi + 0xac], ecx
call fcn.00a1ebc0
add esp, 4
test eax, eax
jne 0xa20d52
cmp dword [edi + 0x60], 0x12c
mov ebx, dword [ebp + 0xc]
jl 0xa2152e
cmp byte [ebx + 0x1d0], al
jne 0xa2150a
cmp byte [ebx + 0x1c6], al
jne 0xa2150a
cmp byte [esi + 0xd5b], al
jne 0xa21513
mov al, byte [esi + 0xd46]
dec al
cmp al, 3
ja 0xa2150a
push 0
push esi
call fcn.00a08e50
add esp, 8
cmp byte [edi + 0xc4], 0
jne 0xa2150a
cmp dword [edi + 0x60], 0x1a1
jne 0xa214a5
cmp byte [esi + 0xd4f], 0
je 0xa214a5
push str.Got_417_while_waiting_for_a_100
push esi
call fcn.00a18090
push dword [esi + 0xca4]
mov byte [esi + 0xd50], 1
call dword [0xadd108]
push edi
push esi
mov dword [esi + 0x118], eax
call fcn.00a23720
add esp, 0x14
jmp 0xa2150a
cmp byte [esi + 0x6c3], 0
je 0xa214cf
push str.HTTP_error_before_end_of_send__keep_sending
push esi
call fcn.00a18090
add esp, 8
cmp dword [edi + 0x78], 0
jle 0xa2150a
or dword [edi + 0x64], 2
mov dword [edi + 0x78], 0
jmp 0xa2150a
push str.HTTP_error_before_end_of_send__stop_sending
push esi
call fcn.00a18090
push 2
push ebx
call fcn.00a18d00
push edi
push esi
call fcn.00a23720
add esp, 0x18
test eax, eax
jne 0xa20d52
mov byte [edi + 0xc4], 1
cmp byte [esi + 0xd4f], al
je 0xa2150a
mov dword [edi + 0x78], 3
cmp byte [esi + 0xd5b], 0
je 0xa2152e
cmp dword [ebx + 0x1fc], 0xffffffff
je 0xa2152e
push str.Keep_sending_data_to_get_tossed_away
push esi
call fcn.00a18090
add esp, 8
or dword [edi + 0x64], 2
cmp byte [edi + 0xc2], 0
je 0xa2164c
lea eax, [esi + 0x89c]
push eax
call fcn.00a0e880
add esp, 4
mov eax, dword [edi + 0x50]
mov dword [ebp + 8], eax
cmp byte [eax], 0
je 0xa20d50
mov ecx, dword [ebp + 0x10]
jmp 0xa20cb6
mov eax, dword [ebp - 0x14]
mov dword [edi + 0x48], 2
mov dword [ecx], eax
mov eax, dword [ebp - 0x18]
mov dword [edi + 0x50], eax
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.Unsupported_HTTP_version_in_response
push esi
call fcn.00a17fd0
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 - 0x10]
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 esi
call fcn.00a17fd0
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 esi
call fcn.00a17fd0
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 esi
call fcn.00a17fd0
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
mov byte [edi + 0xc2], 0
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.Received_101__Switching_to_HTTP_2
push esi
call fcn.00a18090
add esp, 8
mov dword [edi + 0x7c], 3
mov byte [edi + 0xc2], 1
mov eax, 1
mov dword [edi + 0x4c], 0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
cmp byte [esi + 0x14c], 0
mov ecx, dword [ebp + 0x14]
jne 0xa2167d
mov eax, dword [ebx + 0x1e0]
test dword [eax + 0x44], 0x40000
je 0xa21680
cmp dword [esi + 0x658], 2
jne 0xa21680
cmp dword [edi + 4], 0xffffffff
jg 0xa21680
jl 0xa2167d
cmp dword [edi], 0xffffffff
ja 0xa21680
mov byte [ecx], 1
cmp dword [edi + 8], 0
jne 0xa21691
cmp dword [edi + 0xc], 0
jne 0xa21691
mov byte [ecx], 1
jmp 0xa21696
cmp byte [ecx], 0
je 0xa2169a
and dword [edi + 0x64], 0xfffffffe
push dword [ebp - 0x10]
push dword [ebp + 8]
push 1
push esi
call fcn.00a17f40
add esp, 0x10
xor eax, eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push dword [edi + 0x60]
push str.The_requested_URL_returned_error:__d
push esi
call fcn.00a17fd0
add esp, 0xc
mov eax, 0x16
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebp + 0x10]
lea eax, [esi + 0x89c]
push dword [ecx]
push dword [ebp + 8]
push eax
call fcn.00a0e810
add esp, 0xc
test eax, eax
jne 0xa20d52
cmp dword [edi + 0x4c], eax
jne 0xa20d50
lea eax, [esi + 0x89c]
push eax
call fcn.00a502a0
add esp, 4
push eax
lea eax, [esi + 0x89c]
push eax
call fcn.00a0e930
add esp, 4
push eax
push ebx
push esi
call fcn.00a21e70
add esp, 0x10
cmp eax, 2
jne 0xa20d50
push eax
push ebx
mov byte [edi + 0xc2], 0
mov dword [edi + 0x48], eax
call fcn.00a18d00
add esp, 8
cmp byte [esi + 0x6e5], 0
jne 0xa20d50
push str.Received_HTTP_0.9_when_not_allowed
push esi
call fcn.00a17fd0
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret