Function at 0x14004ec30
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 0x14004f1b3
cmp al, 0xd
je 0x14004f1b3
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 0x14004f0ce
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test eax, 0xc0000003
je 0x14004ee65
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x14004ece4
nop dword [rax + rax]
cmp al, 0x20
je 0x14004ecd9
cmp byte [rbx], 9
jne 0x14004ece4
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x14004ecd0
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call fcn.1400c1b60
test eax, eax
jne 0x14004ed9d
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x14004edcd
sub ecx, r15d
je 0x14004ed31
cmp ecx, r15d
je 0x14004ed31
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.140038e40
mov eax, r15d
jmp 0x14004f23c
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x14004ed3d
cmp al, 9
jne 0x14004ed9d
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 0x14004ed9d
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14004ed9d
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14004ed9d
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 0x14004ef4f
sub al, 9
cmp al, 4
jbe 0x14004ef4f
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.14004df80
cmp eax, r15d
jne 0x14004f0f9
mov dword [rdi + 0x14c], reloc.WLDAP32.dll_Ordinal_200
mov dword [rdi + 0x148], 0xa
jmp 0x14004ef4f
cmp byte [rbx + 6], 0x2e
jne 0x14004ee4e
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x14004ee4e
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x14004edeb
cmp al, 9
jne 0x14004ee4e
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14004ee4e
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14004ee4e
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14004ee4e
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 0x14004ef4f
cmp al, 9
je 0x14004ef4f
sub al, 0xa
cmp al, 3
jbe 0x14004ef4f
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.140038e40
mov eax, r15d
jmp 0x14004f23c
bt eax, 0x12
jae 0x14004f0f9
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x14004ee94
nop dword [rax]
cmp al, 0x20
je 0x14004ee89
cmp byte [rbx], 9
jne 0x14004ee94
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x14004ee80
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call fcn.1400c1b60
test eax, eax
jne 0x14004f0f9
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x14004f100
cmp byte [rbx + 6], 0x2e
jne 0x14004f100
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x14004f100
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x14004eee7
cmp al, 9
jne 0x14004f100
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14004f100
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14004f100
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14004f100
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 0x14004ef45
cmp al, 9
je 0x14004ef45
sub al, 0xa
cmp al, 3
ja 0x14004f100
mov dword [rdi + 0x148], recv
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x14004ef9f
cmp ecx, r15d
je 0x14004ef9f
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.140038e40
mov eax, r15d
jmp 0x14004f23c
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x14004efee
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 0x14004efee
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.140038e40
mov eax, r15d
jmp 0x14004f23c
mov eax, dword [rdi + 0x14c]
mov dword [rdi + 0x1390], eax
mov eax, dword [rdi + 0x148]
mov dword [rdi + 0x1398], eax
movzx eax, byte [rdi + 0x148]
mov byte [rbx + 0x7e0], al
movzx eax, byte [rdi + 0x1369]
test al, al
je 0x14004f026
cmp eax, dword [rdi + 0x148]
jle 0x14004f033
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1369], al
cmp qword [rdi + 0x1140], r12
je 0x14004f058
cmp byte [rdi + 0x136a], r12b
jne 0x14004f058
cmp dword [rdi + 0x14c], 0x1a0
jne 0x14004f058
mov byte [rdi + 0x1e3], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x14004f07b
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.140038f30
mov edx, r15d
mov rcx, rbx
call fcn.14003bd90
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e4], al
sub ecx, 0xcc
je 0x14004f0ad
cmp ecx, 0x64
jne 0x14004f0c2
cmp byte [rdi + 0x538], r12b
je 0x14004f0ad
mov byte [rdi + 0x146c], r15b
mov qword [rdi + 0x100], r12
mov qword [rdi + 0x108], r12
mov byte [rdi + 0x1e4], r15b
mov ebx, recv
lea r14, [rdi + 0x13c]
mov r8, rbp
xor edx, edx
mov rcx, rsi
call fcn.1400c1620
test rax, rax
je 0x14004f10a
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.140038e40
jmp 0x14004f23a
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x14004f23c
mov ecx, dword [r14]
cmp ecx, 2
jl 0x14004f150
movzx eax, byte [rsi]
cmp al, 0x20
je 0x14004f11d
cmp al, 9
jne 0x14004f122
cmp ecx, 2
jg 0x14004f150
mov r8, rbp
mov edx, Ordinal_60
mov rcx, rsi
call fcn.1400c1620
test rax, rax
jne 0x14004f150
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.140038e40
jmp 0x14004f23a
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.14004c390
test eax, eax
jne 0x14004f23c
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.140038d50
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x14004f188
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.14003a3c0
test eax, eax
jne 0x14004f23c
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.14004b850
jmp 0x14004f23c
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.140029170
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.140029130
test eax, eax
jne 0x14004f23c
lea rcx, [rdi + 0xc78]
call fcn.140029190
lea rcx, [rsp + 0x30]
call fcn.140026d80
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.140026cd0
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.14004e0c0
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.140029140
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