Function at 0x140049e60
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 0x14004a3d4
cmp al, 0xd
je 0x14004a3d4
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 0x14004a2ef
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test al, 3
je 0x14004a08d
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x140049f0c
cmp al, 0x20
je 0x140049f01
cmp byte [rbx], 9
jne 0x140049f0c
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140049ef8
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call sub.api_ms_win_crt_string_l1_1_0.dll_strncmp
test eax, eax
jne 0x140049fc5
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x140049ff5
sub ecx, r15d
je 0x140049f59
cmp ecx, r15d
je 0x140049f59
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.140032ef0
mov eax, r15d
jmp 0x14004a45d
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x140049f65
cmp al, 9
jne 0x140049fc5
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 0x140049fc5
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140049fc5
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140049fc5
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 0x14004a170
sub al, 9
cmp al, 4
jbe 0x14004a170
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140049020
cmp eax, r15d
jne 0x14004a31a
mov dword [rdi + 0x14c], 0xc8
mov dword [rdi + 0x148], 0xa
jmp 0x14004a170
cmp byte [rbx + 6], 0x2e
jne 0x14004a076
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x14004a076
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x14004a013
cmp al, 9
jne 0x14004a076
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14004a076
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14004a076
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14004a076
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 0x14004a170
cmp al, 9
je 0x14004a170
sub al, 0xa
cmp al, 3
jbe 0x14004a170
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.140032ef0
mov eax, r15d
jmp 0x14004a45d
bt eax, 0x12
jae 0x14004a31a
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x14004a0b5
cmp al, 0x20
je 0x14004a0aa
cmp byte [rbx], 9
jne 0x14004a0b5
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x14004a0a1
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call sub.api_ms_win_crt_string_l1_1_0.dll_strncmp
test eax, eax
jne 0x14004a31a
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x14004a321
cmp byte [rbx + 6], 0x2e
jne 0x14004a321
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x14004a321
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x14004a108
cmp al, 9
jne 0x14004a321
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14004a321
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14004a321
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14004a321
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 0x14004a166
cmp al, 9
je 0x14004a166
sub al, 0xa
cmp al, 3
ja 0x14004a321
mov dword [rdi + 0x148], listen
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x14004a1c0
cmp ecx, r15d
je 0x14004a1c0
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.140032ef0
mov eax, r15d
jmp 0x14004a45d
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x14004a20f
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 0x14004a20f
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.140032ef0
mov eax, r15d
jmp 0x14004a45d
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 0x14004a247
cmp eax, dword [rdi + 0x148]
jle 0x14004a254
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1361], al
cmp qword [rdi + 0x1138], r12
je 0x14004a279
cmp byte [rdi + 0x1362], r12b
jne 0x14004a279
cmp dword [rdi + 0x14c], 0x1a0
jne 0x14004a279
mov byte [rdi + 0x1e3], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x14004a29c
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.140032fe0
mov edx, r15d
mov rcx, rbx
call fcn.140035de0
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e4], al
sub ecx, 0xcc
je 0x14004a2ce
cmp ecx, 0x64
jne 0x14004a2e3
cmp byte [rdi + 0x538], r12b
je 0x14004a2ce
mov byte [rdi + 0x1464], r15b
mov qword [rdi + 0x100], r12
mov qword [rdi + 0x108], r12
mov byte [rdi + 0x1e4], r15b
mov ebx, listen
lea r14, [rdi + 0x13c]
mov r8, rbp
xor edx, edx
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
je 0x14004a32b
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.140032ef0
jmp 0x14004a45b
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x14004a45d
mov ecx, dword [r14]
cmp ecx, 2
jl 0x14004a371
movzx eax, byte [rsi]
cmp al, 0x20
je 0x14004a33e
cmp al, 9
jne 0x14004a343
cmp ecx, 2
jg 0x14004a371
mov r8, rbp
mov edx, 0x3a
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x14004a371
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.140032ef0
jmp 0x14004a45b
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140047430
test eax, eax
jne 0x14004a45d
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.140032e00
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x14004a3a9
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.140034410
test eax, eax
jne 0x14004a45d
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.1400468f0
jmp 0x14004a45d
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.140023b30
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.140023af0
test eax, eax
jne 0x14004a45d
lea rcx, [rdi + 0xc70]
call fcn.140023b50
lea rcx, [rsp + 0x30]
call fcn.140021770
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.1400216c0
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.140049160
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.140023b00
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