Function at 0x4fca70
Capabilities:
Parse credit card information

Disassembly:
mov ecx, dword [0x71d934]
mov ecx, dword fs:[ecx]
mov ecx, dword [ecx]
cmp esp, dword [ecx + 8]
jbe 0x4fd461
sub esp, 0x50
mov eax, dword [esp + 0x54]
mov ecx, dword [eax + 0x34]
test ecx, ecx
jne 0x4fd42d
mov dword [esp], eax
call sym.go_scanner._Scanner_.skipWhitespace
mov eax, dword [esp + 0x54]
mov ecx, dword [eax + 0x24]
mov edx, dword [eax]
test ecx, ecx
jge 0x4fcaaf
xor ebx, ebx
jmp 0x4fcab8
mov ebx, dword [edx + 0xc]
cmp ebx, ecx
jl 0x4fcab8
mov ebx, ecx
mov ecx, dword [eax + 0x20]
mov dword [esp + 0x2c], ecx
add ebx, dword [edx + 8]
mov dword [esp + 0x30], ebx
mov dword [esp], ecx
call sym.go_scanner.isLetter
movzx eax, byte [esp + 4]
test al, al
jne 0x4fd365
mov edx, dword [esp + 0x2c]
lea ebx, [edx - 0x30]
cmp ebx, 9
jbe 0x4fd33f
cmp edx, 0x2e
jne 0x4fcb1f
mov ebx, dword [esp + 0x54]
mov eax, dword [ebx + 0x28]
mov ecx, dword [ebx + 0x10]
cmp ecx, eax
jle 0x4fcb0d
jbe 0x4fd45b
mov ecx, dword [ebx + 0xc]
movzx eax, byte [ecx + eax]
jmp 0x4fcb0f
xor eax, eax
movzx eax, al
add eax, 0xffffffd0
cmp eax, 9
ja 0x4fcb23
jmp 0x4fd343
mov ebx, dword [esp + 0x54]
mov dword [esp], ebx
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x2c]
cmp eax, 0x2e
jle 0x4fce64
cmp eax, 0x5b
jg 0x4fcd42
cmp eax, 0x3b
jg 0x4fcc40
cmp eax, 0x2f
jne 0x4fcbea
mov eax, dword [esp + 0x54]
mov ecx, dword [eax + 0x20]
cmp ecx, 0x2f
je 0x4fcb64
cmp ecx, 0x2a
jne 0x4fcbc2
mov dword [esp], eax
call sym.go_scanner._Scanner_.scanComment
mov eax, dword [esp + 0x54]
movzx ecx, byte [eax + 0x30]
mov edx, dword [esp + 4]
mov ebx, dword [esp + 8]
test cl, cl
je 0x4fcba5
mov ebp, dword [esp + 0xc]
test ebp, ebp
je 0x4fcba5
mov ecx, dword [eax]
jge 0x4fcb90
xor esi, esi
jmp 0x4fcb99
mov esi, dword [ecx + 0xc]
cmp esi, ebp
jl 0x4fcb99
mov esi, ebp
add esi, dword [ecx + 8]
mov dword [eax + 0x34], esi
mov byte [eax + 0x30], 0
xor ecx, ecx
mov ebp, dword [eax + 0x1c]
test ebp, 1
je 0x4fca87
mov ebp, edx
mov edx, ecx
mov ecx, 2
jmp 0x4fd407
cmp ecx, 0x3d
je 0x4fcbce
mov ecx, 0xf
jmp 0x4fcbdf
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x1a
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x3a
jne 0x4fcc1c
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fcc00
mov ecx, 0x3a
jmp 0x4fcc11
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x2f
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x3b
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
xor edx, edx
mov ebx, 1
mov ecx, 0x39
lea ebp, [0x5b89de]
jmp 0x4fd407
cmp eax, 0x3d
jg 0x4fccd9
cmp eax, 0x3c
jne 0x4fccac
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x2d
jne 0x4fcc67
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, 0x24
jmp 0x4fcc9b
mov dword [esp], eax
mov dword [esp + 4], 0x28
mov dword [esp + 8], 0x2d
mov dword [esp + 0xc], 0x3c
mov dword [esp + 0x10], 0x14
mov dword [esp + 0x14], 0x1f
call sym.go_scanner._Scanner_.switch4
mov eax, dword [esp + 0x18]
xor edx, edx
xor ebx, ebx
mov ecx, eax
xor ebp, ebp
mov eax, dword [esp + 0x54]
jmp 0x4fd407
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fccbd
mov ecx, 0x2a
jmp 0x4fccce
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x27
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x3e
je 0x4fccfb
cmp eax, 0x5b
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
mov ecx, 0x32
xor ebp, ebp
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov dword [esp], eax
mov dword [esp + 4], 0x29
mov dword [esp + 8], 0x2e
mov dword [esp + 0xc], 0x3e
mov dword [esp + 0x10], 0x15
mov dword [esp + 0x14], 0x20
call sym.go_scanner._Scanner_.switch4
mov ecx, dword [esp + 0x18]
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x60
jg 0x4fcdc5
cmp eax, 0x5d
jne 0x4fcd63
mov eax, dword [esp + 0x54]
mov edx, 1
xor ebx, ebx
mov ecx, 0x37
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x5e
jne 0x4fcd95
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fcd79
mov ecx, 0x13
jmp 0x4fcd8a
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x1e
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x60
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
mov dword [esp], eax
call sym.go_scanner._Scanner_.scanRawString
mov ebp, dword [esp + 4]
mov ebx, dword [esp + 8]
mov eax, dword [esp + 0x54]
mov edx, 1
mov ecx, 9
jmp 0x4fd407
cmp eax, 0x7c
jg 0x4fce2b
cmp eax, 0x7b
jne 0x4fcde3
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
mov ecx, 0x33
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x7c
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
mov dword [esp], eax
mov dword [esp + 4], 0x12
mov dword [esp + 8], 0x1d
mov dword [esp + 0xc], 0x7c
mov dword [esp + 0x10], 0x23
call sym.go_scanner._Scanner_.switch3
mov ecx, dword [esp + 0x14]
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x7d
jne 0x4fce47
mov eax, dword [esp + 0x54]
mov edx, 1
xor ebx, ebx
mov ecx, 0x38
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x7e
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
mov ecx, 0x58
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x27
jg 0x4fd1cb
cmp eax, 0x21
jg 0x4fcf2a
cmp eax, 0xffffffff
jne 0x4fcec1
mov eax, dword [esp + 0x54]
movzx ecx, byte [eax + 0x30]
test cl, cl
jne 0x4fce97
xor edx, edx
xor ebx, ebx
mov ecx, 1
xor ebp, ebp
jmp 0x4fd407
mov byte [eax + 0x30], 0
mov eax, dword [esp + 0x30]
mov dword [esp + 0x58], eax
mov dword [esp + 0x5c], 0x39
lea eax, [0x5f9144]
mov dword [esp + 0x60], eax
mov dword [esp + 0x64], 1
add esp, 0x50
ret
cmp eax, 0xa
je 0x4fcefc
cmp eax, 0x21
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fcee0
mov ecx, 0x2b
jmp 0x4fcef1
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x2c
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov byte [eax + 0x30], 0
mov eax, dword [esp + 0x30]
mov dword [esp + 0x58], eax
mov dword [esp + 0x5c], 0x39
lea eax, [0x5f9144]
mov dword [esp + 0x60], eax
mov dword [esp + 0x64], 1
add esp, 0x50
ret
cmp eax, 0x25
jg 0x4fd12e
cmp eax, 0x22
je 0x4fd107
cmp eax, 0x25
jne 0x4fcf6e
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fcf52
mov ecx, 0x10
jmp 0x4fcf63
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x1b
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0xfeff
je 0x4fd0ca
cmp eax, 0x201c
je 0x4fcf8b
cmp eax, 0x201d
jne 0x4fd03a
mov ecx, dword [esp + 0x54]
mov edx, dword [ecx]
mov ebx, dword [edx + 8]
mov ebp, dword [esp + 0x30]
sub ebp, ebx
test ebp, ebp
jge 0x4fcfa2
xor edx, edx
jmp 0x4fcfab
mov edx, dword [edx + 0xc]
cmp edx, ebp
jl 0x4fcfab
mov edx, ebp
mov dword [esp + 0x24], edx
mov dword [esp + 0x40], 0
mov dword [esp + 0x44], 0
mov dword [esp + 0x48], 0
mov dword [esp + 0x4c], 0
mov dword [esp], eax
call sym.runtime.convT32
mov eax, dword [esp + 4]
lea ecx, [0x591c20]
mov dword [esp + 0x40], ecx
mov dword [esp + 0x44], eax
mov dword [esp + 0x48], ecx
lea eax, [0x5f91b4]
mov dword [esp + 0x4c], eax
mov eax, dword [esp + 0x54]
mov dword [esp], eax
mov ecx, dword [esp + 0x24]
mov dword [esp + 4], ecx
lea ecx, [0x5c59f8]
mov dword [esp + 8], ecx
mov dword [esp + 0xc], 0x28
lea ecx, [esp + 0x40]
mov dword [esp + 0x10], ecx
mov dword [esp + 0x14], 2
mov dword [esp + 0x18], 2
call sym.go_scanner._Scanner_.errorf
jmp 0x4fd0c6
mov ecx, dword [esp + 0x54]
mov edx, dword [ecx]
mov ebx, dword [edx + 8]
mov ebp, dword [esp + 0x30]
sub ebp, ebx
test ebp, ebp
jge 0x4fd051
xor edx, edx
jmp 0x4fd05a
mov edx, dword [edx + 0xc]
cmp edx, ebp
jl 0x4fd05a
mov edx, ebp
mov dword [esp + 0x20], edx
mov dword [esp + 0x38], 0
mov dword [esp + 0x3c], 0
mov dword [esp], eax
call sym.runtime.convT32
mov eax, dword [esp + 4]
lea ecx, [0x591c20]
mov dword [esp + 0x38], ecx
mov dword [esp + 0x3c], eax
mov eax, dword [esp + 0x54]
mov dword [esp], eax
mov ecx, dword [esp + 0x20]
mov dword [esp + 4], ecx
lea ecx, [0x5becd3]
mov dword [esp + 8], ecx
mov dword [esp + 0xc], 0x15
lea ecx, [esp + 0x38]
mov dword [esp + 0x10], ecx
mov dword [esp + 0x14], 1
mov dword [esp + 0x18], 1
call sym.go_scanner._Scanner_.errorf
mov eax, dword [esp + 0x2c]
mov ecx, eax
sar eax, 0x1f
mov edx, dword [esp + 0x54]
movzx ebx, byte [edx + 0x30]
mov byte [esp + 0x1f], bl
mov dword [esp], 0
mov dword [esp + 4], ecx
mov dword [esp + 8], eax
call sym.runtime.intstring
mov ebp, dword [esp + 0xc]
mov ebx, dword [esp + 0x10]
mov eax, dword [esp + 0x54]
movzx edx, byte [esp + 0x1f]
xor ecx, ecx
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov dword [esp], eax
call sym.go_scanner._Scanner_.scanString
mov ebp, dword [esp + 4]
mov ebx, dword [esp + 8]
mov eax, dword [esp + 0x54]
mov edx, 1
mov ecx, 9
jmp 0x4fd407
cmp eax, 0x26
jne 0x4fd1a4
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x5e
jne 0x4fd169
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fd156
mov ecx, 0x16
jmp 0x4fd199
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x21
jmp 0x4fd199
mov dword [esp], eax
mov dword [esp + 4], 0x11
mov dword [esp + 8], 0x1c
mov dword [esp + 0xc], 0x26
mov dword [esp + 0x10], 0x22
call sym.go_scanner._Scanner_.switch3
mov ecx, dword [esp + 0x14]
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov dword [esp], eax
call sym.go_scanner._Scanner_.scanRune
mov ebp, dword [esp + 4]
mov ebx, dword [esp + 8]
mov eax, dword [esp + 0x54]
mov edx, 1
mov ecx, 8
jmp 0x4fd407
cmp eax, 0x2a
jg 0x4fd232
cmp eax, 0x28
jne 0x4fd1e9
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
mov ecx, 0x31
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x29
jne 0x4fd205
mov eax, dword [esp + 0x54]
mov edx, 1
xor ebx, ebx
mov ecx, 0x36
xor ebp, ebp
jmp 0x4fd407
mov eax, dword [esp + 0x54]
cmp dword [eax + 0x20], 0x3d
je 0x4fd216
mov ecx, 0xe
jmp 0x4fd227
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov ecx, 0x19
xor edx, edx
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x2c
jg 0x4fd293
cmp eax, 0x2b
je 0x4fd250
mov eax, dword [esp + 0x54]
xor edx, edx
xor ebx, ebx
mov ecx, 0x34
xor ebp, ebp
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov dword [esp], eax
mov dword [esp + 4], 0xc
mov dword [esp + 8], 0x17
mov dword [esp + 0xc], 0x2b
mov dword [esp + 0x10], 0x25
call sym.go_scanner._Scanner_.switch3
mov ecx, dword [esp + 0x14]
cmp ecx, 0x25
sete dl
mov eax, dword [esp + 0x54]
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
cmp eax, 0x2d
je 0x4fd2fc
mov edx, dword [esp + 0x54]
cmp dword [edx + 0x20], 0x2e
jne 0x4fd2e8
mov eax, dword [edx + 0x28]
mov ecx, dword [edx + 0x10]
cmp ecx, eax
jle 0x4fd2bb
jbe 0x4fd456
mov ecx, dword [edx + 0xc]
movzx eax, byte [ecx + eax]
jmp 0x4fd2bd
xor eax, eax
cmp al, 0x2e
je 0x4fd2c9
mov eax, 0x35
jmp 0x4fd2ed
mov dword [esp], edx
call sym.go_scanner._Scanner_.next
mov eax, dword [esp + 0x54]
mov dword [esp], eax
call sym.go_scanner._Scanner_.next
mov edx, dword [esp + 0x54]
mov eax, 0x30
jmp 0x4fd2ed
mov eax, 0x35
xor ebx, ebx
mov ecx, eax
xor ebp, ebp
mov eax, edx
xor edx, edx
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov dword [esp], eax
mov dword [esp + 4], 0xd
mov dword [esp + 8], 0x18
mov dword [esp + 0xc], 0x2d
mov dword [esp + 0x10], 0x26
call sym.go_scanner._Scanner_.switch3
mov ecx, dword [esp + 0x14]
cmp ecx, 0x26
sete dl
mov eax, dword [esp + 0x54]
xor ebx, ebx
xor ebp, ebp
jmp 0x4fd407
mov ebx, dword [esp + 0x54]
mov dword [esp], ebx
call sym.go_scanner._Scanner_.scanNumber
mov ecx, dword [esp + 4]
mov ebp, dword [esp + 8]
mov ebx, dword [esp + 0xc]
mov eax, dword [esp + 0x54]
mov edx, 1
jmp 0x4fd407
mov eax, dword [esp + 0x54]
mov dword [esp], eax
call sym.go_scanner._Scanner_.scanIdentifier
mov eax, dword [esp + 8]
mov ecx, dword [esp + 4]
cmp eax, 1
jg 0x4fd38a
mov edx, 1
mov ebx, 4
jmp 0x4fd3fd
mov dword [esp + 0x34], ecx
mov dword [esp + 0x28], eax
mov edx, dword [0x6fe428]
lea ebx, [0x593740]
mov dword [esp], ebx
mov dword [esp + 4], edx
mov dword [esp + 8], ecx
mov dword [esp + 0xc], eax
call sym.runtime.mapaccess2_faststr
movzx eax, byte [esp + 0x14]
test al, al
je 0x4fd3c3
mov eax, dword [esp + 0x10]
mov eax, dword [eax]
jmp 0x4fd3c8
mov eax, 4
cmp eax, 0x3d
jg 0x4fd3d9
cmp eax, 4
je 0x4fd3e8
cmp eax, 0x3d
je 0x4fd3e8
jmp 0x4fd3ef
cmp eax, 0x41
je 0x4fd3e8
cmp eax, 0x45
je 0x4fd3e8
cmp eax, 0x50
jne 0x4fd3ef
mov ecx, 1
jmp 0x4fd3f1
xor ecx, ecx
mov edx, ecx
mov ebx, eax
mov eax, dword [esp + 0x28]
mov ecx, dword [esp + 0x34]
mov ebp, ecx
mov ecx, ebx
mov ebx, eax
mov eax, dword [esp + 0x54]
mov esi, dword [eax + 0x1c]
test esi, 2
jne 0x4fd415
mov byte [eax + 0x30], dl
mov eax, dword [esp + 0x30]
mov dword [esp + 0x58], eax
mov dword [esp + 0x5c], ecx
mov dword [esp + 0x60], ebp
mov dword [esp + 0x64], ebx
add esp, 0x50
ret
mov dword [eax + 0x34], 0
mov dword [esp + 0x58], ecx
mov dword [esp + 0x5c], 0x39
lea eax, [0x5f9144]
mov dword [esp + 0x60], eax
mov dword [esp + 0x64], 1
add esp, 0x50
ret
call sym.runtime.panicIndex
call sym.runtime.panicIndex
nop
call sym.runtime.morestack_noctxt
jmp sym.go_scanner._Scanner_.Scan