Function at 0x140089c00
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 0x14008a174
cmp al, 0xd
je 0x14008a174
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 0x14008a08f
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test al, 3
je 0x140089e2d
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x140089cac
cmp al, 0x20
je 0x140089ca1
cmp byte [rbx], 9
jne 0x140089cac
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140089c98
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call fcn.140006ee7
test eax, eax
jne 0x140089d65
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x140089d95
sub ecx, r15d
je 0x140089cf9
cmp ecx, r15d
je 0x140089cf9
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.140008e77
mov eax, r15d
jmp 0x14008a1fd
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x140089d05
cmp al, 9
jne 0x140089d65
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 0x140089d65
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140089d65
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140089d65
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 0x140089f10
sub al, 9
cmp al, 4
jbe 0x140089f10
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140088440
cmp eax, r15d
jne 0x14008a0ba
mov dword [rdi + 0x14c], 0xc8
mov dword [rdi + 0x148], 0xa
jmp 0x140089f10
cmp byte [rbx + 6], 0x2e
jne 0x140089e16
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x140089e16
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x140089db3
cmp al, 9
jne 0x140089e16
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140089e16
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140089e16
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140089e16
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 0x140089f10
cmp al, 9
je 0x140089f10
sub al, 0xa
cmp al, 3
jbe 0x140089f10
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.140008e77
mov eax, r15d
jmp 0x14008a1fd
bt eax, 0x12
jae 0x14008a0ba
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x140089e55
cmp al, 0x20
je 0x140089e4a
cmp byte [rbx], 9
jne 0x140089e55
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140089e41
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call fcn.140006ee7
test eax, eax
jne 0x14008a0ba
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x14008a0c1
cmp byte [rbx + 6], 0x2e
jne 0x14008a0c1
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x14008a0c1
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x140089ea8
cmp al, 9
jne 0x14008a0c1
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14008a0c1
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14008a0c1
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14008a0c1
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 0x140089f06
cmp al, 9
je 0x140089f06
sub al, 0xa
cmp al, 3
ja 0x14008a0c1
mov dword [rdi + 0x148], sendto
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x140089f60
cmp ecx, r15d
je 0x140089f60
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.140008e77
mov eax, r15d
jmp 0x14008a1fd
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x140089faf
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 0x140089faf
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.140008e77
mov eax, r15d
jmp 0x14008a1fd
mov eax, dword [rdi + 0x14c]
mov dword [rdi + 0x1338], eax
mov eax, dword [rdi + 0x148]
mov dword [rdi + 0x1340], eax
movzx eax, byte [rdi + 0x148]
mov byte [rbx + 0x7e0], al
movzx eax, byte [rdi + 0x1319]
test al, al
je 0x140089fe7
cmp eax, dword [rdi + 0x148]
jle 0x140089ff4
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1319], al
cmp qword [rdi + 0x1120], r12
je 0x14008a019
cmp byte [rdi + 0x131a], r12b
jne 0x14008a019
cmp dword [rdi + 0x14c], 0x1a0
jne 0x14008a019
mov byte [rdi + 0x1e3], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x14008a03c
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.14000799b
mov edx, r15d
mov rcx, rbx
call fcn.140004809
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e4], al
sub ecx, 0xcc
je 0x14008a06e
cmp ecx, 0x64
jne 0x14008a083
cmp byte [rdi + 0x538], r12b
je 0x14008a06e
mov byte [rdi + 0x1414], 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 fcn.140005d7b
test rax, rax
je 0x14008a0cb
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.140008e77
jmp 0x14008a1fb
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x14008a1fd
mov ecx, dword [r14]
cmp ecx, 2
jl 0x14008a111
movzx eax, byte [rsi]
cmp al, 0x20
je 0x14008a0de
cmp al, 9
jne 0x14008a0e3
cmp ecx, 2
jg 0x14008a111
mov r8, rbp
mov edx, 0x3a
mov rcx, rsi
call fcn.140005d7b
test rax, rax
jne 0x14008a111
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.140008e77
jmp 0x14008a1fb
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.1400083c3
test eax, eax
jne 0x14008a1fd
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.14000766c
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x14008a149
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.140004c73
test eax, eax
jne 0x14008a1fd
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.140008120
jmp 0x14008a1fd
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.140001d02
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.1400042e6
test eax, eax
jne 0x14008a1fd
lea rcx, [rdi + 0xc58]
call fcn.14000291e
lea rcx, [rsp + 0x30]
call fcn.1400038a0
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.140005579
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.140088950
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.14000667c
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