Function at 0x140062550
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 0x140062ac0
cmp al, 0xd
je 0x140062ac0
lea r14, [rcx + 0x13c]
mov ecx, dword [r14]
lea ebx, [r12 + 4]
lea r15d, [r12 + 1]
lea eax, [rcx + 1]
mov dword [r14], eax
test ecx, ecx
jne 0x1400629dd
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3e0]
mov eax, dword [rcx + 0x8c]
test al, 3
je 0x14006277b
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x1400625fa
cmp al, 0x20
je 0x1400625ef
cmp al, 9
jne 0x1400625fa
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x1400625e7
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call fcn.1400aebb0
test eax, eax
jne 0x1400626b3
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x1400626e3
sub ecx, r15d
je 0x140062647
cmp ecx, r15d
je 0x140062647
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.140050570
mov eax, r15d
jmp 0x140062b49
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x140062653
cmp al, 9
jne 0x1400626b3
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 0x1400626b3
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1400626b3
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1400626b3
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 0x14006285e
sub al, 9
cmp al, 4
jbe 0x14006285e
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140061700
cmp eax, r15d
jne 0x140062a08
mov dword [rdi + 0x14c], reloc.WLDAP32.dll_Ordinal_200
mov dword [rdi + 0x148], 0xa
jmp 0x14006285e
cmp byte [rbx + 6], 0x2e
jne 0x140062764
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x140062764
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x140062701
cmp al, 9
jne 0x140062764
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140062764
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140062764
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140062764
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 0x14006285e
cmp al, 9
je 0x14006285e
sub al, 0xa
cmp al, 3
jbe 0x14006285e
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.140050570
mov eax, r15d
jmp 0x140062b49
bt eax, 0x12
jae 0x140062a08
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x1400627a3
nop
cmp al, 0x20
je 0x140062798
cmp al, 9
jne 0x1400627a3
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140062790
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call fcn.1400aebb0
test eax, eax
jne 0x140062a08
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x140062a0f
cmp byte [rbx + 6], 0x2e
jne 0x140062a0f
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x140062a0f
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x1400627f6
cmp al, 9
jne 0x140062a0f
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140062a0f
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140062a0f
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140062a0f
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 0x140062854
cmp al, 9
je 0x140062854
sub al, 0xa
cmp al, 3
ja 0x140062a0f
mov dword [rdi + 0x148], recvfrom
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x1400628ae
cmp ecx, r15d
je 0x1400628ae
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.140050570
mov eax, r15d
jmp 0x140062b49
movzx eax, byte [rbx + 0x7e0]
test al, al
je 0x1400628fd
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 0x1400628fd
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.140050570
mov eax, r15d
jmp 0x140062b49
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 0x140062935
cmp eax, dword [rdi + 0x148]
jle 0x140062942
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x1319], al
cmp qword [rdi + 0x1120], r12
je 0x140062967
cmp byte [rdi + 0x131a], r12b
jne 0x140062967
cmp dword [rdi + 0x14c], 0x1a0
jne 0x140062967
mov byte [rdi + 0x1e3], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x14006298a
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.140050660
mov edx, r15d
mov rcx, rbx
call fcn.140053440
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e4], al
sub ecx, 0xcc
je 0x1400629bc
cmp ecx, 0x64
jne 0x1400629d1
cmp byte [rdi + 0x538], r12b
je 0x1400629bc
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.1400cb360
test rax, rax
je 0x140062a19
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.140050570
jmp 0x140062b47
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x140062b49
mov ecx, dword [r14]
cmp ecx, 2
jl 0x140062a5d
movzx eax, byte [rsi]
cmp al, 0x20
je 0x140062a2c
cmp al, 9
jne 0x140062a31
cmp ecx, 2
jg 0x140062a5d
mov r8, rbp
mov edx, Ordinal_60
mov rcx, rsi
call fcn.1400cb360
test rax, rax
jne 0x140062a5d
lea rdx, str.Header_without_colon
mov rcx, rdi
lea ebx, [rax + 8]
call fcn.140050570
jmp 0x140062b47
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.14005fb00
test eax, eax
jne 0x140062b49
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.140050490
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x140062a95
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.140051a70
test eax, eax
jne 0x140062b49
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.14005f020
jmp 0x140062b49
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.1400414c0
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.140041480
test eax, eax
jne 0x140062b49
lea rcx, [rdi + 0xc58]
call fcn.140041500
lea rcx, [rsp + 0x30]
call fcn.1400414e0
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.1400414f0
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.140061840
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.140041490
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