Function at 0x18007fef0
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 0x18], rbx
mov qword [rsp + 0x20], r9
push rbp
push rsi
push rdi
push r12
push r13
push r14
push r15
sub rsp, 0x20
mov r13, qword [rcx + 0x20]
lea r14, [rcx + 0xca0]
mov qword [r9], 0
mov r15, r9
mov r12, r8
mov rsi, rdx
mov rbx, rcx
mov ebp, 5
mov r8, r12
mov rcx, rsi
lea edx, [rbp + 5]
call fcn.18018a8e0
mov rdi, rax
mov rdx, rsi
mov rcx, r14
test rax, rax
je 0x180080736
sub rdi, rsi
inc rdi
mov r8, rdi
call fcn.180056b40
test eax, eax
jne 0x180080646
add qword [r15], rdi
add rsi, rdi
sub r12, rdi
mov qword [rsp + 0x68], rsi
cmp dword [rbx + 0x12c], eax
jne 0x18007ffe4
mov rcx, r14
call fcn.180056ba0
mov rcx, r14
mov rsi, rax
call fcn.180056bb0
mov rcx, qword [r13 + 0x360]
mov rdx, rax
test dword [rcx + 0x84], 0x40000
je 0x18007ffc9
xor edi, edi
lea rcx, str.RTSP_
cmp rsi, rbp
cmova rsi, rbp
setae dil
mov r8, rsi
call fcn.1800553a0
test eax, eax
mov ecx, 2
cmovne ecx, edi
jmp 0x18007ffd6
mov r8, rsi
mov rcx, rbx
call fcn.18007f4a0
mov ecx, eax
cmp ecx, 2
je 0x18008065b
mov rsi, qword [rsp + 0x68]
lea rcx, [rbx + 0xca0]
call fcn.180056bb0
mov rcx, r14
mov r15, rax
call fcn.180056ba0
movzx ecx, byte [r15]
mov rbp, rax
cmp cl, 0xa
je 0x180080525
cmp cl, 0xd
je 0x180080525
mov edx, dword [rbx + 0x12c]
mov edi, 4
mov rsi, r14
lea ecx, [rdx + 1]
mov dword [rbx + 0x12c], ecx
test edx, edx
jne 0x1800803eb
xor esi, esi
mov dword [rbx + 0x138], esi
mov rax, qword [r13 + 0x360]
mov ecx, dword [rax + 0x84]
test cl, 3
je 0x1800801e2
movzx eax, byte [r15]
mov rdi, r15
test al, al
je 0x180080073
nop dword [rax]
cmp al, 0x20
je 0x180080068
cmp al, 9
jne 0x180080073
movzx eax, byte [rdi + 1]
inc rdi
test al, al
jne 0x180080060
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rdi
call fcn.18018aa60
test eax, eax
jne 0x180080119
movsx edx, byte [rdi + 5]
mov ecx, edx
sub ecx, 0x31
je 0x180080149
sub ecx, 1
je 0x1800800ad
cmp ecx, 1
jne 0x18008068f
movzx eax, byte [rdi + 6]
cmp al, 0x20
je 0x1800800b9
cmp al, 9
jne 0x180080119
lea eax, [rdx - 0x30]
lea ecx, [rax + rax*4]
add ecx, ecx
mov dword [rbx + 0x138], ecx
movsx ecx, byte [rdi + 7]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x180080119
movsx edx, byte [rdi + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x180080119
movsx r8d, byte [rdi + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x180080119
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 [rbx + 0x13c], ecx
movzx eax, byte [rdi + 0xa]
cmp al, 0x20
je 0x1800802c5
sub al, 9
cmp al, 4
jbe 0x1800802c5
mov r8, rbp
mov rdx, r15
mov rcx, rbx
call fcn.18007f4a0
cmp eax, 1
jne 0x1800806db
mov dword [rbx + 0x13c], 0xc8
mov dword [rbx + 0x138], 0xa
jmp 0x1800802c5
cmp byte [rdi + 6], 0x2e
jne 0x1800801c9
movsx ecx, byte [rdi + 7]
lea eax, [rcx - 0x30]
cmp al, 1
ja 0x1800801c9
movzx eax, byte [rdi + 8]
cmp al, 0x20
je 0x180080166
cmp al, 9
jne 0x1800801c9
lea eax, [rcx - 0x26]
mov dword [rbx + 0x138], eax
movsx ecx, byte [rdi + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1800801c9
movsx edx, byte [rdi + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1800801c9
movsx r8d, byte [rdi + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1800801c9
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 [rbx + 0x13c], ecx
movzx eax, byte [rdi + 0xc]
cmp al, 0x20
je 0x1800802c5
cmp al, 9
je 0x1800802c5
sub al, 0xa
cmp al, 3
jbe 0x1800802c5
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rbx
call fcn.180056ea0
mov eax, 1
jmp 0x180080646
bt ecx, 0x12
jae 0x1800806db
movzx eax, byte [r15]
mov rdi, r15
test al, al
je 0x18008020a
cmp al, 0x20
je 0x1800801ff
cmp al, 9
jne 0x18008020a
movzx eax, byte [rdi + 1]
inc rdi
test al, al
jne 0x1800801f7
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rdi
call fcn.18018aa60
test eax, eax
jne 0x1800806db
movzx eax, byte [rdi + 5]
sub al, 0x30
cmp al, 9
ja 0x1800807d6
cmp byte [rdi + 6], 0x2e
jne 0x1800807d6
movzx eax, byte [rdi + 7]
sub al, 0x30
cmp al, 9
ja 0x1800807d6
movzx eax, byte [rdi + 8]
cmp al, 0x20
je 0x18008025d
cmp al, 9
jne 0x1800807d6
movsx ecx, byte [rdi + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1800807d6
movsx edx, byte [rdi + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1800807d6
movsx r8d, byte [rdi + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1800807d6
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 [rbx + 0x13c], ecx
movzx eax, byte [rdi + 0xc]
cmp al, 0x20
je 0x1800802bb
cmp al, 9
je 0x1800802bb
sub al, 0xa
cmp al, 3
ja 0x1800807d6
mov dword [rbx + 0x138], sendto
mov r9d, dword [rbx + 0x138]
mov ecx, r9d
sub ecx, 0xa
je 0x1800802dd
cmp ecx, 1
jne 0x1800806a5
mov byte [r13 + 0x778], r9b
mov eax, dword [rbx + 0x13c]
mov dword [rbx + 0x1310], eax
mov eax, dword [rbx + 0x138]
mov dword [rbx + 0x1318], eax
movzx eax, byte [rbx + 0x138]
mov byte [r13 + 0x778], al
movzx eax, byte [rbx + 0x12f1]
test al, al
je 0x18008031d
cmp eax, dword [rbx + 0x138]
jle 0x18008032a
movzx eax, byte [rbx + 0x138]
mov byte [rbx + 0x12f1], al
cmp qword [rbx + 0x10f8], rsi
je 0x18008034f
cmp byte [rbx + 0x12f2], sil
jne 0x18008034f
cmp dword [rbx + 0x13c], 0x1a0
jne 0x18008034f
mov byte [rbx + 0x1da], 1
mov eax, dword [rbx + 0x138]
cmp eax, 0xa
jne 0x180080378
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rbx
call fcn.180056f90
mov edx, 1
mov rcx, r13
call fcn.18006a3b0
jmp 0x18008039c
cmp eax, 0x14
je 0x18008038f
cmp dword [rbx + 0x144], 2
jne 0x18008039c
cmp dword [rbx + 0x13c], 0x65
jne 0x18008039c
mov rax, qword [r13 + 0x740]
mov dword [rax], 2
mov ecx, dword [rbx + 0x13c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rbx + 0x1db], al
sub ecx, 0xcc
je 0x1800803ce
cmp ecx, 0x64
jne 0x1800803e3
cmp byte [rbx + 0x530], sil
je 0x1800803ce
mov byte [rbx + 0x13ec], 1
mov qword [rbx + 0xf0], rsi
mov qword [rbx + 0xf8], rsi
mov byte [rbx + 0x1db], 1
mov edi, listen
mov rsi, r14
lea rcx, [rbx + 0xca0]
call fcn.180056bb0
mov rcx, rsi
mov r14, rax
call fcn.180056ba0
mov r8, rax
xor edx, edx
mov rcx, r14
mov rsi, rax
call fcn.18018a8e0
test rax, rax
jne 0x180080702
mov edx, dword [rbx + 0x12c]
cmp edx, 2
jl 0x180080452
movzx ecx, byte [r14]
cmp cl, 0x20
je 0x180080434
cmp cl, 9
jne 0x180080439
cmp edx, 2
jg 0x180080452
mov r8, rsi
mov edx, 0x3a
mov rcx, r14
call fcn.18018a8e0
test rax, rax
je 0x1800806e7
mov r9, rbp
mov r8, r15
mov rdx, r13
mov rcx, rbx
call fcn.18007d930
test eax, eax
jne 0x180080646
mov r9, rbp
lea edx, [rax + 1]
mov r8, r15
mov rcx, rbx
call fcn.180056dc0
mov eax, dword [rbx + 0x13c]
sub eax, 0x64
cmp eax, 0x64
jae 0x18008048d
or edi, 0x20
mov r9, rbp
mov r8, r15
mov edx, edi
mov rcx, rbx
call fcn.180054460
test eax, eax
jne 0x180080646
mov edx, dword [rbx + 0x124]
mov r9d, 0x4b000
cmp rbp, r9
jae 0x1800804ed
mov ecx, dword [rbx + 0x1358]
lea eax, [rdx + rbp]
add dword [rbx + 0x120], ebp
add ecx, ebp
mov dword [rbx + 0x1358], ecx
mov dword [rbx + 0x124], eax
cmp eax, r9d
ja 0x1800804e8
cmp ecx, 0x5dc000
jbe 0x1800804fa
mov r9d, 0x5dc000
mov eax, ecx
mov r8d, eax
jmp 0x1800804f1
lea r8, [rdx + rbp]
test r8, r8
jne 0x18008071d
lea rcx, [rbx + 0xca0]
call fcn.180056bc0
test r12, r12
je 0x180080627
mov rsi, qword [rsp + 0x68]
lea r14, [rbx + 0xca0]
mov r15, qword [rsp + 0x78]
jmp 0x18007ff27
mov r9, rbp
mov r8, r15
mov edx, 1
mov rcx, rbx
call fcn.180056dc0
mov eax, dword [rbx + 0x13c]
mov edx, 4
sub eax, 0x64
mov r9, rbp
cmp eax, 0x64
mov r8, r15
mov eax, 0x24
mov rcx, rbx
cmovb edx, eax
call fcn.180054460
test eax, eax
jne 0x180080646
mov ecx, dword [rbx + 0x124]
mov r9d, 0x4b000
cmp rbp, r9
jae 0x1800805b4
mov r8d, dword [rbx + 0x1358]
lea edx, [rcx + rbp]
add dword [rbx + 0x120], ebp
add r8d, ebp
mov dword [rbx + 0x1358], r8d
mov dword [rbx + 0x124], edx
cmp edx, r9d
ja 0x1800805af
cmp r8d, 0x5dc000
jbe 0x1800805c1
mov r9d, 0x5dc000
mov edx, r8d
mov r8d, edx
jmp 0x1800805b8
lea r8, [rcx + rbp]
test r8, r8
jne 0x18008071d
lea rcx, [rbx + 0xca0]
call fcn.180056bc0
mov eax, dword [rbx + 0x13c]
sub eax, 0x64
cmp eax, 0x63
ja 0x1800805e3
mov eax, dword [rbx + 0x120]
jmp 0x1800805e5
xor eax, eax
lea r9, [rsp + 0x60]
mov dword [rbx + 0x128], eax
mov r8, r12
mov rdx, rsi
mov rcx, rbx
call fcn.18007f5e0
test eax, eax
jne 0x180080646
mov rax, qword [rsp + 0x60]
mov r15, qword [rsp + 0x78]
sub r12, rax
add rsi, rax
add qword [r15], rax
cmp byte [rbx + 0x1d1], 0
je 0x180080627
test r12, r12
jne 0x18007ff27
xor bpl, bpl
cmp byte [rbx + 0x1d1], 0
jne 0x180080644
test bpl, bpl
jne 0x180080644
lea rcx, [rbx + 0xca0]
call fcn.180056b50
xor eax, eax
mov rbx, qword [rsp + 0x70]
add rsp, 0x20
pop r15
pop r14
pop r13
pop r12
pop rdi
pop rsi
pop rbp
ret
mov edx, 2
mov rcx, r13
call fcn.18006a3b0
cmp byte [r13 + 0x778], 0xa
jae 0x1800807c7
cmp byte [rbx + 0xac9], 0
je 0x1800807ae
mov byte [rbx + 0x1d1], 0
mov bpl, 1
jmp 0x18008062a
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rbx
call fcn.180056ea0
mov eax, 1
jmp 0x180080646
mov eax, 0x66666667
imul r9d
sar edx, 2
mov ecx, edx
shr ecx, 0x1f
add edx, ecx
mov r8d, edx
lea ecx, [rdx + rdx*4]
add ecx, ecx
lea rdx, str.Unsupported_HTTP_version___u._d__in_response
sub r9d, ecx
mov rcx, rbx
call fcn.180056ea0
mov eax, 1
jmp 0x180080646
mov byte [rbx + 0x1d1], sil
jmp 0x180080627
lea rdx, str.Header_without_colon
mov rcx, rbx
mov edi, 8
call fcn.180056ea0
mov eax, edi
jmp 0x180080646
lea rdx, str.Nul_byte_in_header
mov rcx, rbx
mov edi, 8
call fcn.180056ea0
mov eax, edi
jmp 0x180080646
lea rdx, str.Too_large_response_headers:__zu____u
mov rcx, rbx
call fcn.180056ea0
mov eax, gethostname
jmp 0x180080646
mov r8, r12
call fcn.180056b40
test eax, eax
jne 0x180080646
add qword [r15], r12
cmp dword [rbx + 0x12c], eax
jne 0x180080627
mov rcx, r14
call fcn.180056ba0
mov rcx, r14
mov rdi, rax
call fcn.180056bb0
mov r8, rax
mov r9, rdi
mov rdx, r13
mov rcx, rbx
call fcn.18007f570
cmp eax, 2
jne 0x180080627
mov edx, eax
mov byte [rbx + 0x1d1], 0
mov rcx, r13
call fcn.18006a3b0
cmp byte [r13 + 0x778], 0xa
jae 0x1800807c7
cmp byte [rbx + 0xac9], 0
je 0x1800807ae
mov bpl, 1
jmp 0x18008062a
lea rdx, str.Received_HTTP_0.9_when_not_allowed
mov rcx, rbx
call fcn.180056ea0
mov eax, 1
jmp 0x180080646
lea rdx, str.Invalid_status_line
mov rcx, rbx
call fcn.180056ea0
mov eax, 8
jmp 0x180080646