Function at 0x180374ed0
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 8], rbx
mov qword [rsp + 0x10], rbp
mov qword [rsp + 0x18], rsi
mov qword [rsp + 0x20], rdi
push r12
push r14
push r15
sub rsp, 0x50
mov r14, qword [rsp + 0x98]
xor r12d, r12d
mov r15, r9
mov rbp, r8
mov rsi, rdx
mov rdi, rcx
mov qword [r14], r12
movzx eax, byte [rdx]
cmp al, 0xa
je 0x180375444
cmp al, 0xd
je 0x180375444
lea r14, [rcx + 0x13c]
mov ebx, 4
mov ecx, dword [r14]
mov r15d, 1
lea eax, [rcx + 1]
mov dword [r14], eax
test ecx, ecx
jne 0x18037535f
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test al, 3
je 0x1803750fd
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x180374f7c
cmp al, 0x20
je 0x180374f71
cmp byte [rbx], 9
jne 0x180374f7c
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x180374f68
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call fcn.180416660
test eax, eax
jne 0x180375035
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x180375065
sub ecx, r15d
je 0x180374fc9
cmp ecx, r15d
je 0x180374fc9
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.180333640
mov eax, r15d
jmp 0x1803754cd
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x180374fd5
cmp al, 9
jne 0x180375035
lea eax, [rdx - 0x30]
lea ecx, [rax + rax*4]
add ecx, ecx
mov dword [rdi + 0x148], ecx
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x180375035
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x180375035
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x180375035
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xa]
cmp al, 0x20
je 0x1803751e0
sub al, 9
cmp al, 4
jbe 0x1803751e0
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.180374090
cmp eax, r15d
jne 0x18037538a
mov dword [rdi + 0x14c], 0xc8
mov dword [rdi + 0x148], 0xa
jmp 0x1803751e0
cmp byte [rbx + 6], 0x2e
jne 0x1803750e6
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x1803750e6
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x180375083
cmp al, 9
jne 0x1803750e6
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1803750e6
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1803750e6
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1803750e6
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x1803751e0
cmp al, 9
je 0x1803751e0
sub al, 0xa
cmp al, 3
jbe 0x1803751e0
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.180333640
mov eax, r15d
jmp 0x1803754cd
bt eax, 0x12
jae 0x18037538a
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x180375125
cmp al, 0x20
je 0x18037511a
cmp byte [rbx], 9
jne 0x180375125
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x180375111
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call fcn.180416660
test eax, eax
jne 0x18037538a
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x180375391
cmp byte [rbx + 6], 0x2e
jne 0x180375391
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x180375391
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x180375178
cmp al, 9
jne 0x180375391
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x180375391
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x180375391
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x180375391
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x1803751d6
cmp al, 9
je 0x1803751d6
sub al, 0xa
cmp al, 3
ja 0x180375391
mov dword [rdi + 0x148], reloc.WS2_32.dll_inet_addr
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x180375230
cmp ecx, r15d
je 0x180375230
mov eax, 0x66666667
mov rcx, rdi
imul r9d
mov r8d, edx
lea rdx, str.Unsupported_HTTP_version___u._d__in_response
sar r8d, 2
mov eax, r8d
shr eax, 0x1f
add r8d, eax
lea eax, [r8 + r8*4]
add eax, eax
sub r9d, eax
call fcn.180333640
mov eax, r15d
jmp 0x1803754cd
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x18037527f
mov ecx, eax
mov eax, 0xcccccccd
mul ecx
mov eax, 0x66666667
mov r8d, edx
imul r9d
shr r8d, 3
mov r9d, edx
sar r9d, 2
mov eax, r9d
shr eax, 0x1f
add r9d, eax
cmp r9d, r8d
je 0x18037527f
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.180333640
mov eax, r15d
jmp 0x1803754cd
mov eax, dword [rdi + 0x14c]
mov dword [rdi + 0x1388], eax
mov eax, dword [rdi + 0x148]
mov dword [rdi + 0x1390], eax
movzx eax, byte [rdi + 0x148]
mov byte [rbx + 0x7e0], al
movzx eax, byte [rdi + 0x1361]
test al, al
je 0x1803752b7
cmp eax, dword [rdi + 0x148]
jle 0x1803752c4
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1361], al
cmp qword [rdi + 0x1138], r12
je 0x1803752e9
cmp byte [rdi + 0x1362], r12b
jne 0x1803752e9
cmp dword [rdi + 0x14c], 0x1a0
jne 0x1803752e9
mov byte [rdi + 0x1e3], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x18037530c
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.180333730
mov edx, r15d
mov rcx, rbx
call fcn.18034fa00
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e4], al
sub ecx, 0xcc
je 0x18037533e
cmp ecx, 0x64
jne 0x180375353
cmp byte [rdi + 0x538], r12b
je 0x18037533e
mov byte [rdi + 0x1464], r15b
mov qword [rdi + 0x100], r12
mov qword [rdi + 0x108], r12
mov byte [rdi + 0x1e4], r15b
mov ebx, reloc.WS2_32.dll_inet_ntoa
lea r14, [rdi + 0x13c]
mov r8, rbp
xor edx, edx
mov rcx, rsi
call fcn.1804370d0
test rax, rax
je 0x18037539b
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.180333640
jmp 0x1803754cb
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x1803754cd
mov ecx, dword [r14]
cmp ecx, 2
jl 0x1803753e1
movzx eax, byte [rsi]
cmp al, 0x20
je 0x1803753ae
cmp al, 9
jne 0x1803753b3
cmp ecx, 2
jg 0x1803753e1
mov r8, rbp
mov edx, 0x3a
mov rcx, rsi
call fcn.1804370d0
test rax, rax
jne 0x1803753e1
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.180333640
jmp 0x1803754cb
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.1803724a0
test eax, eax
jne 0x1803754cd
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.180333550
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x180375419
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.180332210
test eax, eax
jne 0x1803754cd
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.180371960
jmp 0x1803754cd
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.180333330
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.1803332f0
test eax, eax
jne 0x1803754cd
lea rcx, [rdi + 0xc70]
call fcn.180333350
lea rcx, [rsp + 0x30]
call fcn.1801ba150
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.18014dfc0
mov rcx, qword [rsp + 0x90]
mov rdx, rax
lea rax, [rsp + 0x98]
mov r9, r15
mov qword [rsp + 0x28], rax
mov r8, rbx
mov qword [rsp + 0x20], rcx
mov rcx, rdi
call fcn.1803741d0
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.180333300
mov eax, ebx
lea r11, [rsp + 0x50]
mov rbx, qword [r11 + 0x20]
mov rbp, qword [r11 + 0x28]
mov rsi, qword [r11 + 0x30]
mov rdi, qword [r11 + 0x38]
mov rsp, r11
pop r15
pop r14
pop r12
ret