Function at 0x5187c0
Capabilities:
Encode data using base64

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
push ebx
push esi
mov esi, dword [ebp + 0x10]
xor ebx, ebx
mov dword [esi + 0x10], ebx
cmp dword [esi + 0x14], 0x10
jb 0x5187da
mov eax, dword [esi]
jmp 0x5187dc
mov eax, esi
mov ecx, dword [ebp + 8]
mov byte [eax], bl
test ecx, ecx
je 0x518a08
mov eax, dword [ebp + 0xc]
test eax, eax
je 0x518a08
push edi
dec eax
mov dword [ebp + 0xc], eax
mov al, byte [ecx]
inc ecx
mov byte [ebp + ebx - 8], al
inc ebx
mov ah, byte [ebp - 6]
mov dl, byte [ebp - 7]
mov dh, byte [ebp - 8]
mov dword [ebp + 8], ecx
mov byte [ebp - 2], ah
mov byte [ebp + 0x13], dl
mov byte [ebp - 1], dh
cmp ebx, 3
jne 0x518877
mov al, dh
mov cl, dh
shr al, 2
and cl, 3
mov byte [ebp - 0xc], al
mov al, dl
shl cl, 4
shr al, 4
add cl, al
mov al, ah
mov byte [ebp - 0xb], cl
mov cl, dl
and cl, 0xf
shr al, 6
shl cl, 2
add cl, al
mov al, ah
and al, 0x3f
mov byte [ebp - 0xa], cl
mov byte [ebp - 9], al
xor edi, edi
movzx eax, byte [ebp + edi - 0xc]
mov ecx, esi
movzx eax, byte [eax + 0x688558]
push eax
push 1
call fcn.0043daa0
inc edi
cmp edi, 4
jl 0x518850
mov ecx, dword [ebp + 8]
xor ebx, ebx
mov dl, byte [ebp + 0x13]
mov dh, byte [ebp - 1]
mov eax, dword [ebp + 0xc]
test eax, eax
jne 0x5187f5
test ebx, ebx
je 0x5189fe
mov eax, ebx
cmp ebx, 3
jge 0x5188b0
cmp eax, 3
jae 0x518a11
mov byte [ebp + eax - 8], 0
inc eax
cmp eax, 3
jl 0x518894
mov cl, byte [ebp - 6]
mov dl, byte [ebp - 7]
mov dh, byte [ebp - 8]
jmp 0x5188b3
mov cl, byte [ebp - 2]
mov al, dh
and dh, 3
shr al, 2
mov byte [ebp - 0xc], al
mov al, dl
shr al, 4
and dl, 0xf
shl dh, 4
add dh, al
shl dl, 2
mov al, cl
mov byte [ebp - 0xb], dh
shr al, 6
and cl, 0x3f
add dl, al
mov byte [ebp - 9], cl
mov byte [ebp - 0xa], dl
lea eax, [ebx + 1]
xor edx, edx
mov dword [ebp + 0x10], edx
test eax, eax
jle 0x518986
movzx eax, byte [ebp + edx - 0xc]
mov ecx, dword [esi + 0x10]
mov al, byte [eax + 0x688558]
mov byte [ebp + 0xb], al
or eax, 0xffffffff
sub eax, ecx
cmp eax, 1
jbe 0x518a16
lea edi, [ecx + 1]
cmp edi, 0xfffffffe
ja 0x518a16
cmp dword [esi + 0x14], edi
jae 0x51893e
push ecx
push edi
mov ecx, esi
call fcn.00436700
mov edx, dword [ebp + 0x10]
test edi, edi
je 0x518977
cmp dword [esi + 0x14], 0x10
mov ecx, dword [esi + 0x10]
jb 0x518959
mov eax, dword [esi]
jmp 0x51895b
test edi, edi
jne 0x518931
mov dword [esi + 0x10], edi
cmp dword [esi + 0x14], 0x10
jb 0x518952
mov eax, dword [esi]
mov byte [eax], 0
jmp 0x518977
mov eax, esi
mov byte [eax], 0
jmp 0x518977
mov eax, esi
mov dl, byte [ebp + 0xb]
mov byte [eax + ecx], dl
mov dword [esi + 0x10], edi
cmp dword [esi + 0x14], 0x10
jb 0x51896e
mov eax, dword [esi]
jmp 0x518970
mov eax, esi
mov edx, dword [ebp + 0x10]
mov byte [eax + edi], 0
inc edx
lea eax, [ebx + 1]
mov dword [ebp + 0x10], edx
cmp edx, eax
jl 0x5188f1
cmp ebx, 3
jge 0x5189fe
nop dword [eax + eax]
mov ecx, dword [esi + 0x10]
or eax, 0xffffffff
sub eax, ecx
inc ebx
cmp eax, 1
jbe 0x518a16
lea edi, [ecx + 1]
cmp edi, 0xfffffffe
ja 0x518a16
cmp dword [esi + 0x14], edi
jae 0x5189c5
push ecx
push edi
mov ecx, esi
call fcn.00436700
test edi, edi
je 0x5189f9
cmp dword [esi + 0x14], 0x10
mov ecx, dword [esi + 0x10]
jb 0x5189e0
mov eax, dword [esi]
jmp 0x5189e2
test edi, edi
jne 0x5189b8
mov dword [esi + 0x10], edi
cmp dword [esi + 0x14], 0x10
jb 0x5189d9
mov eax, dword [esi]
mov byte [eax], 0
jmp 0x5189f9
mov eax, esi
mov byte [eax], 0
jmp 0x5189f9
mov eax, esi
mov byte [ecx + eax], 0x3d
mov dword [esi + 0x10], edi
cmp dword [esi + 0x14], 0x10
jb 0x5189f3
mov eax, dword [esi]
jmp 0x5189f5
mov eax, esi
mov byte [edi + eax], 0
cmp ebx, 3
jl 0x518990
mov eax, dword [esi + 0x10]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
pop esi
or eax, 0xffffffff
pop ebx
mov esp, ebp
pop ebp
ret
call fcn.005b5624
push str.string_too_long
call fcn.005a29a9
int3