Function at 0x14001f600
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 sub.VCRUNTIME140.dll_memchr
mov rdi, rax
mov rdx, rsi
mov rcx, r14
test rax, rax
je 0x14001fe48
sub rdi, rsi
inc rdi
mov r8, rdi
call fcn.1400056c0
test eax, eax
jne 0x14001fd58
add qword [r15], rdi
add rsi, rdi
sub r12, rdi
mov qword [rsp + 0x68], rsi
cmp dword [rbx + 0x12c], eax
jne 0x14001f6f4
mov rcx, r14
call fcn.140005720
mov rcx, r14
mov rsi, rax
call fcn.140005730
mov rcx, qword [r13 + 0x360]
mov rdx, rax
test dword [rcx + 0x84], 0x40000
je 0x14001f6d9
xor edi, edi
lea rcx, str.RTSP_
cmp rsi, rbp
cmova rsi, rbp
setae dil
mov r8, rsi
call fcn.140022fe0
test eax, eax
mov ecx, 2
cmovne ecx, edi
jmp 0x14001f6e6
mov r8, rsi
mov rcx, rbx
call fcn.14001ebb0
mov ecx, eax
cmp ecx, 2
je 0x14001fd6d
mov rsi, qword [rsp + 0x68]
lea rcx, [rbx + 0xca0]
call fcn.140005730
mov rcx, r14
mov r15, rax
call fcn.140005720
movzx ecx, byte [r15]
mov rbp, rax
cmp cl, 0xa
je 0x14001fc37
cmp cl, 0xd
je 0x14001fc37
mov edx, dword [rbx + 0x12c]
mov edi, 4
mov rsi, r14
lea ecx, [rdx + 1]
mov dword [rbx + 0x12c], ecx
test edx, edx
jne 0x14001fafd
xor esi, esi
mov dword [rbx + 0x138], esi
mov rax, qword [r13 + 0x360]
mov ecx, dword [rax + 0x84]
test cl, 3
je 0x14001f8f3
movzx eax, byte [r15]
mov rdi, r15
test al, al
je 0x14001f783
nop dword [rax]
cmp al, 0x20
je 0x14001f778
cmp al, 9
jne 0x14001f783
movzx eax, byte [rdi + 1]
inc rdi
test al, al
jne 0x14001f770
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rdi
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
test eax, eax
jne 0x14001f82a
movsx edx, byte [rdi + 5]
mov ecx, edx
sub ecx, 0x31
je 0x14001f85a
sub ecx, 1
je 0x14001f7be
cmp ecx, 1
jne 0x14001fda1
movzx eax, byte [rdi + 6]
cmp al, 0x20
je 0x14001f7ca
cmp al, 9
jne 0x14001f82a
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 0x14001f82a
movsx edx, byte [rdi + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14001f82a
movsx r8d, byte [rdi + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14001f82a
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 0x14001f9d7
sub al, 9
cmp al, 4
jbe 0x14001f9d7
mov r8, rbp
mov rdx, r15
mov rcx, rbx
call fcn.14001ebb0
cmp eax, 1
jne 0x14001fded
mov dword [rbx + 0x13c], reloc.WLDAP32.dll_Ordinal_200
mov dword [rbx + 0x138], 0xa
jmp 0x14001f9d7
cmp byte [rdi + 6], 0x2e
jne 0x14001f8da
movsx ecx, byte [rdi + 7]
lea eax, [rcx - 0x30]
cmp al, 1
ja 0x14001f8da
movzx eax, byte [rdi + 8]
cmp al, 0x20
je 0x14001f877
cmp al, 9
jne 0x14001f8da
lea eax, [rcx - 0x26]
mov dword [rbx + 0x138], eax
movsx ecx, byte [rdi + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14001f8da
movsx edx, byte [rdi + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14001f8da
movsx r8d, byte [rdi + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14001f8da
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 0x14001f9d7
cmp al, 9
je 0x14001f9d7
sub al, 0xa
cmp al, 3
jbe 0x14001f9d7
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rbx
call fcn.14000ecd0
mov eax, 1
jmp 0x14001fd58
bt ecx, 0x12
jae 0x14001fded
movzx eax, byte [r15]
mov rdi, r15
test al, al
je 0x14001f91b
cmp al, 0x20
je 0x14001f910
cmp al, 9
jne 0x14001f91b
movzx eax, byte [rdi + 1]
inc rdi
test al, al
jne 0x14001f908
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rdi
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
test eax, eax
jne 0x14001fded
movzx eax, byte [rdi + 5]
sub al, 0x30
cmp al, 9
ja 0x14001fee8
cmp byte [rdi + 6], 0x2e
jne 0x14001fee8
movzx eax, byte [rdi + 7]
sub al, 0x30
cmp al, 9
ja 0x14001fee8
movzx eax, byte [rdi + 8]
cmp al, 0x20
je 0x14001f96f
cmp al, 9
jne 0x14001fee8
movsx ecx, byte [rdi + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x14001fee8
movsx edx, byte [rdi + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x14001fee8
movsx r8d, byte [rdi + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x14001fee8
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 0x14001f9cd
cmp al, 9
je 0x14001f9cd
sub al, 0xa
cmp al, 3
ja 0x14001fee8
mov dword [rbx + 0x138], select
mov r9d, dword [rbx + 0x138]
mov ecx, r9d
sub ecx, 0xa
je 0x14001f9ef
cmp ecx, 1
jne 0x14001fdb7
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 0x14001fa2f
cmp eax, dword [rbx + 0x138]
jle 0x14001fa3c
movzx eax, byte [rbx + 0x138]
mov byte [rbx + 0x12f1], al
cmp qword [rbx + 0x10f8], rsi
je 0x14001fa61
cmp byte [rbx + 0x12f2], sil
jne 0x14001fa61
cmp dword [rbx + 0x13c], 0x1a0
jne 0x14001fa61
mov byte [rbx + 0x1da], 1
mov eax, dword [rbx + 0x138]
cmp eax, 0xa
jne 0x14001fa8a
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rbx
call fcn.14000edc0
mov edx, 1
mov rcx, r13
call fcn.140011a00
jmp 0x14001faae
cmp eax, 0x14
je 0x14001faa1
cmp dword [rbx + 0x144], 2
jne 0x14001faae
cmp dword [rbx + 0x13c], 0x65
jne 0x14001faae
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 0x14001fae0
cmp ecx, 0x64
jne 0x14001faf5
cmp byte [rbx + 0x530], sil
je 0x14001fae0
mov byte [rbx + 0x13ec], 1
mov qword [rbx + 0xf0], rsi
mov qword [rbx + 0xf8], rsi
mov byte [rbx + 0x1db], 1
mov edi, recv
mov rsi, r14
lea rcx, [rbx + 0xca0]
call fcn.140005730
mov rcx, rsi
mov r14, rax
call fcn.140005720
mov r8, rax
xor edx, edx
mov rcx, r14
mov rsi, rax
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x14001fe14
mov edx, dword [rbx + 0x12c]
cmp edx, 2
jl 0x14001fb64
movzx ecx, byte [r14]
cmp cl, 0x20
je 0x14001fb46
cmp cl, 9
jne 0x14001fb4b
cmp edx, 2
jg 0x14001fb64
mov r8, rsi
mov edx, Ordinal_60
mov rcx, r14
call sub.VCRUNTIME140.dll_memchr
test rax, rax
je 0x14001fdf9
mov r9, rbp
mov r8, r15
mov rdx, r13
mov rcx, rbx
call fcn.14001d040
test eax, eax
jne 0x14001fd58
mov r9, rbp
lea edx, [rax + 1]
mov r8, r15
mov rcx, rbx
call fcn.14000ebe0
mov eax, dword [rbx + 0x13c]
sub eax, 0x64
cmp eax, 0x64
jae 0x14001fb9f
or edi, 0x20
mov r9, rbp
mov r8, r15
mov edx, edi
mov rcx, rbx
call fcn.14000fdd0
test eax, eax
jne 0x14001fd58
mov edx, dword [rbx + 0x124]
mov r9d, 0x4b000
cmp rbp, r9
jae 0x14001fbff
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 0x14001fbfa
cmp ecx, 0x5dc000
jbe 0x14001fc0c
mov r9d, 0x5dc000
mov eax, ecx
mov r8d, eax
jmp 0x14001fc03
lea r8, [rdx + rbp]
test r8, r8
jne 0x14001fe2f
lea rcx, [rbx + 0xca0]
call fcn.140005740
test r12, r12
je 0x14001fd39
mov rsi, qword [rsp + 0x68]
lea r14, [rbx + 0xca0]
mov r15, qword [rsp + 0x78]
jmp 0x14001f637
mov r9, rbp
mov r8, r15
mov edx, 1
mov rcx, rbx
call fcn.14000ebe0
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.14000fdd0
test eax, eax
jne 0x14001fd58
mov ecx, dword [rbx + 0x124]
mov r9d, 0x4b000
cmp rbp, r9
jae 0x14001fcc6
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 0x14001fcc1
cmp r8d, 0x5dc000
jbe 0x14001fcd3
mov r9d, 0x5dc000
mov edx, r8d
mov r8d, edx
jmp 0x14001fcca
lea r8, [rcx + rbp]
test r8, r8
jne 0x14001fe2f
lea rcx, [rbx + 0xca0]
call fcn.140005740
mov eax, dword [rbx + 0x13c]
sub eax, 0x64
cmp eax, 0x63
ja 0x14001fcf5
mov eax, dword [rbx + 0x120]
jmp 0x14001fcf7
xor eax, eax
lea r9, [rsp + 0x60]
mov dword [rbx + 0x128], eax
mov r8, r12
mov rdx, rsi
mov rcx, rbx
call fcn.14001ecf0
test eax, eax
jne 0x14001fd58
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 0x14001fd39
test r12, r12
jne 0x14001f637
xor bpl, bpl
cmp byte [rbx + 0x1d1], 0
jne 0x14001fd56
test bpl, bpl
jne 0x14001fd56
lea rcx, [rbx + 0xca0]
call fcn.1400056d0
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.140011a00
cmp byte [r13 + 0x778], 0xa
jae 0x14001fed9
cmp byte [rbx + 0xac9], 0
je 0x14001fec0
mov byte [rbx + 0x1d1], 0
mov bpl, 1
jmp 0x14001fd3c
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rbx
call fcn.14000ecd0
mov eax, 1
jmp 0x14001fd58
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.14000ecd0
mov eax, 1
jmp 0x14001fd58
mov byte [rbx + 0x1d1], sil
jmp 0x14001fd39
lea rdx, str.Header_without_colon
mov rcx, rbx
mov edi, 8
call fcn.14000ecd0
mov eax, edi
jmp 0x14001fd58
lea rdx, str.Nul_byte_in_header
mov rcx, rbx
mov edi, 8
call fcn.14000ecd0
mov eax, edi
jmp 0x14001fd58
lea rdx, str.Too_large_response_headers:__zu____u
mov rcx, rbx
call fcn.14000ecd0
mov eax, gethostname
jmp 0x14001fd58
mov r8, r12
call fcn.1400056c0
test eax, eax
jne 0x14001fd58
add qword [r15], r12
cmp dword [rbx + 0x12c], eax
jne 0x14001fd39
mov rcx, r14
call fcn.140005720
mov rcx, r14
mov rdi, rax
call fcn.140005730
mov r8, rax
mov r9, rdi
mov rdx, r13
mov rcx, rbx
call fcn.14001ec80
cmp eax, 2
jne 0x14001fd39
mov edx, eax
mov byte [rbx + 0x1d1], 0
mov rcx, r13
call fcn.140011a00
cmp byte [r13 + 0x778], 0xa
jae 0x14001fed9
cmp byte [rbx + 0xac9], 0
je 0x14001fec0
mov bpl, 1
jmp 0x14001fd3c
lea rdx, str.Received_HTTP_0.9_when_not_allowed
mov rcx, rbx
call fcn.14000ecd0
mov eax, 1
jmp 0x14001fd58
lea rdx, str.Invalid_status_line
mov rcx, rbx
call fcn.14000ecd0
mov eax, 8
jmp 0x14001fd58