Function at 0x4fb790
Capabilities:
Compress data via zlib inflate or deflate

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
push ebx
push edi
mov edi, dword [ebp + 8]
push edi
call fcn.004fc4a0
add esp, 4
test eax, eax
jne 0x4fc07b
mov ebx, dword [ebp + 0xc]
cmp ebx, 5
ja 0x4fc07b
push esi
mov esi, dword [edi + 0x1c]
cmp dword [edi + 0xc], eax
je 0x4fc067
cmp dword [edi + 4], eax
je 0x4fb7d2
cmp dword [edi], eax
je 0x4fc067
mov ecx, dword [esi + 4]
cmp ecx, 0x29a
jne 0x4fb7e6
cmp ebx, 4
jne 0x4fc067
cmp dword [edi + 0x10], 0
je 0x4fb84a
cmp dword [esi + 0x14], 0
mov edx, dword [esi + 0x28]
mov dword [esi + 0x28], ebx
je 0x4fb810
push edi
call fcn.004fcc20
add esp, 4
cmp dword [edi + 0x10], 0
je 0x4fc057
mov eax, dword [esi + 4]
jmp 0x4fb861
cmp dword [edi + 4], 0
mov eax, ecx
jne 0x4fb861
xor eax, eax
mov dword [ebp - 0xc], ecx
cmp edx, 4
mov ecx, 9
cmovg eax, ecx
add edx, edx
sub edx, eax
xor ecx, ecx
cmp ebx, 4
mov eax, 9
cmovg ecx, eax
lea eax, [ebx + ebx]
sub eax, ecx
cmp eax, edx
jg 0x4fb85e
mov eax, dword [esi + 4]
cmp ebx, 4
je 0x4fb861
mov eax, dword [str.buffer_error]
pop esi
mov dword [edi + 0x18], eax
mov eax, 0xfffffffb
pop edi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, dword [ebp - 0xc]
cmp eax, 0x29a
jne 0x4fb886
cmp dword [edi + 4], 0
je 0x4fb94c
mov eax, dword [str.buffer_error]
pop esi
mov dword [edi + 0x18], eax
mov eax, 0xfffffffb
pop edi
pop ebx
mov esp, ebp
pop ebp
ret
cmp eax, 0x2a
jne 0x4fb94c
mov eax, dword [esi + 0x30]
shl eax, 0xc
sub eax, 0x7800
cmp dword [esi + 0x88], 2
jge 0x4fb8d3
mov ecx, dword [esi + 0x84]
cmp ecx, 2
jl 0x4fb8d3
cmp ecx, 6
jge 0x4fb8bd
mov edx, 0x40
lea ecx, [edx + 0x20]
jmp 0x4fb8da
jne 0x4fb8c9
mov edx, 0x80
lea ecx, [edx + 0x20]
jmp 0x4fb8da
mov edx, 0xc0
lea ecx, [edx + 0x20]
jmp 0x4fb8da
xor edx, edx
mov ecx, 0x20
cmp dword [esi + 0x6c], 0
cmove ecx, edx
or ecx, eax
mov eax, 0x8421085
mul ecx
sub ecx, edx
shr ecx, 1
add ecx, edx
shr ecx, 4
inc ecx
mov eax, ecx
shl eax, 5
sub eax, ecx
push eax
push esi
call fcn.004fcdf0
add esp, 8
cmp dword [esi + 0x6c], 0
je 0x4fb924
movzx eax, word [edi + 0x32]
push eax
push esi
call fcn.004fcdf0
movzx eax, word [edi + 0x30]
push eax
push esi
call fcn.004fcdf0
add esp, 0x10
push 0
push 0
push 0
call fcn.004fe8e0
mov dword [edi + 0x30], eax
push edi
mov dword [esi + 4], 0x71
call fcn.004fcc20
add esp, 0x10
cmp dword [esi + 0x14], 0
jne 0x4fc057
mov eax, dword [esi + 4]
cmp eax, 0x39
jne 0x4fbb5f
push 0
push 0
push 0
call fcn.004feb70
mov dword [edi + 0x30], eax
add esp, 0xc
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], 0x1f
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], 0x8b
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], 8
mov edx, dword [esi + 0x14]
mov ebx, dword [esi + 0x1c]
inc edx
mov dword [esi + 0x14], edx
test ebx, ebx
jne 0x4fba37
mov eax, dword [esi + 8]
mov byte [edx + eax], bl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], bl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], bl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], bl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], bl
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x84]
inc edx
mov dword [esi + 0x14], edx
cmp eax, 9
jne 0x4fb9eb
mov cl, 2
jmp 0x4fb9ff
cmp dword [esi + 0x88], 2
jge 0x4fb9fd
cmp eax, 2
jl 0x4fb9fd
xor cl, cl
jmp 0x4fb9ff
mov cl, 4
mov eax, dword [esi + 8]
push edi
mov byte [edx + eax], cl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], 0xa
inc dword [esi + 0x14]
mov dword [esi + 4], 0x71
call fcn.004fcc20
add esp, 4
cmp dword [esi + 0x14], 0
jne 0x4fc057
mov eax, dword [esi + 4]
jmp 0x4fbb5f
mov ecx, dword [ebx + 0x24]
mov eax, dword [ebx + 0x2c]
neg ecx
sbb cl, cl
and cl, 0x10
neg eax
sbb al, al
and al, 2
add cl, al
mov eax, dword [ebx + 0x1c]
neg eax
sbb al, al
and al, 8
add cl, al
mov eax, dword [ebx + 0x10]
neg eax
sbb al, al
and al, 4
add cl, al
cmp dword [ebx], 0
setne al
add cl, al
mov eax, dword [esi + 8]
mov byte [edx + eax], cl
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 8]
movzx eax, byte [eax + 4]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 8]
movzx eax, byte [eax + 5]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 8]
movzx eax, byte [eax + 6]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [eax + 7]
mov byte [edx + ecx], al
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x84]
inc edx
mov dword [esi + 0x14], edx
cmp eax, 9
jne 0x4fbad2
mov cl, 2
jmp 0x4fbae6
cmp dword [esi + 0x88], 2
jge 0x4fbae4
cmp eax, 2
jl 0x4fbae4
xor cl, cl
jmp 0x4fbae6
mov cl, 4
mov eax, dword [esi + 8]
mov byte [edx + eax], cl
inc dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, byte [eax + 0xc]
mov byte [edx + ecx], al
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
inc edx
mov dword [esi + 0x14], edx
cmp dword [eax + 0x10], 0
je 0x4fbb34
movzx eax, byte [eax + 0x14]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [eax + 0x15]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4fbb4c
push edx
push dword [esi + 8]
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
mov dword [esi + 0x20], 0
mov eax, 0x45
mov dword [esi + 4], 0x45
cmp eax, 0x45
jne 0x4fbc6e
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x10], 0
je 0x4fbc62
movzx edx, word [eax + 0x14]
sub edx, dword [esi + 0x20]
mov ecx, dword [esi + 0x14]
mov ebx, dword [esi + 0xc]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], edx
lea eax, [ecx + edx]
cmp eax, ebx
jbe 0x4fbc10
mov eax, ecx
mov dword [ebp - 0xc], ecx
sub ebx, eax
mov eax, dword [esi + 0x1c]
push ebx
mov eax, dword [eax + 0x10]
add eax, dword [esi + 0x20]
push eax
mov eax, dword [esi + 8]
add eax, dword [ebp - 0xc]
push eax
call fcn.004d8d80
mov eax, dword [esi + 0x1c]
add esp, 0xc
mov edx, dword [esi + 0xc]
mov dword [esi + 0x14], edx
cmp dword [eax + 0x2c], 0
je 0x4fbbe1
mov ecx, dword [ebp - 8]
cmp edx, ecx
jbe 0x4fbbe1
mov eax, dword [esi + 8]
sub edx, ecx
push edx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
add dword [esi + 0x20], ebx
push edi
call fcn.004fcc20
add esp, 4
cmp dword [esi + 0x14], 0
jne 0x4fc057
mov edx, dword [ebp - 4]
xor ecx, ecx
sub edx, ebx
mov dword [ebp - 8], ecx
mov ebx, dword [esi + 0xc]
xor eax, eax
mov dword [ebp - 4], edx
mov dword [ebp - 0xc], eax
cmp edx, ebx
ja 0x4fbb98
mov eax, dword [esi + 0x1c]
mov ebx, dword [esi + 0x20]
push edx
mov eax, dword [eax + 0x10]
add eax, ebx
push eax
mov eax, dword [esi + 8]
add eax, ecx
push eax
call fcn.004d8d80
mov edx, dword [esi + 0x14]
add esp, 0xc
mov eax, dword [esi + 0x1c]
add edx, dword [ebp - 4]
mov dword [esi + 0x14], edx
cmp dword [eax + 0x2c], 0
je 0x4fbc5b
mov ecx, dword [ebp - 8]
cmp edx, ecx
jbe 0x4fbc5b
mov eax, dword [esi + 8]
sub edx, ecx
push edx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
mov dword [esi + 0x20], 0
mov dword [esi + 4], 0x49
mov eax, 0x49
cmp eax, 0x49
jne 0x4fbd37
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x1c], 0
je 0x4fbd2b
mov ecx, dword [esi + 0x14]
mov ebx, ecx
mov dword [ebp - 8], ecx
nop dword [eax]
cmp ebx, dword [esi + 0xc]
jne 0x4fbcd5
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4fbcb9
cmp ebx, ecx
jbe 0x4fbcb9
mov eax, dword [esi + 8]
sub ebx, ecx
push ebx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
push edi
call fcn.004fcc20
add esp, 4
cmp dword [esi + 0x14], 0
jne 0x4fc057
mov dword [ebp - 8], 0
xor ebx, ebx
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 0x20]
mov eax, dword [eax + 0x1c]
mov dl, byte [ecx + eax]
lea eax, [ecx + 1]
mov dword [esi + 0x20], eax
mov eax, dword [esi + 8]
mov byte [ebx + eax], dl
mov ebx, dword [esi + 0x14]
inc ebx
mov dword [esi + 0x14], ebx
test dl, dl
je 0x4fbcfd
mov ecx, dword [ebp - 8]
jmp 0x4fbc90
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4fbd24
mov ecx, dword [ebp - 8]
cmp ebx, ecx
jbe 0x4fbd24
mov eax, dword [esi + 8]
sub ebx, ecx
push ebx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
mov dword [esi + 0x20], 0
mov dword [esi + 4], 0x5b
mov eax, 0x5b
cmp eax, 0x5b
jne 0x4fbdf2
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x24], 0
je 0x4fbde9
mov ecx, dword [esi + 0x14]
mov ebx, ecx
mov dword [ebp - 8], ecx
cmp ebx, dword [esi + 0xc]
jne 0x4fbd9a
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4fbd7e
cmp ebx, ecx
jbe 0x4fbd7e
mov eax, dword [esi + 8]
sub ebx, ecx
push ebx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
push edi
call fcn.004fcc20
add esp, 4
cmp dword [esi + 0x14], 0
jne 0x4fc057
mov dword [ebp - 8], 0
xor ebx, ebx
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 0x20]
mov eax, dword [eax + 0x24]
mov dl, byte [ecx + eax]
lea eax, [ecx + 1]
mov dword [esi + 0x20], eax
mov eax, dword [esi + 8]
mov byte [ebx + eax], dl
mov ebx, dword [esi + 0x14]
inc ebx
mov dword [esi + 0x14], ebx
test dl, dl
je 0x4fbdc2
mov ecx, dword [ebp - 8]
jmp 0x4fbd55
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4fbde9
mov ecx, dword [ebp - 8]
cmp ebx, ecx
jbe 0x4fbde9
mov eax, dword [esi + 8]
sub ebx, ecx
push ebx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
mov dword [esi + 4], 0x67
jmp 0x4fbdf7
cmp eax, 0x67
jne 0x4fbe67
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4fbe4d
mov edx, dword [esi + 0x14]
lea eax, [edx + 2]
cmp eax, dword [esi + 0xc]
jbe 0x4fbe1f
push edi
call fcn.004fcc20
mov edx, dword [esi + 0x14]
add esp, 4
test edx, edx
jne 0x4fc057
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 0x30]
push 0
push 0
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 0x31]
push 0
mov byte [edx + ecx], al
inc dword [esi + 0x14]
call fcn.004feb70
add esp, 0xc
mov dword [edi + 0x30], eax
push edi
mov dword [esi + 4], 0x71
call fcn.004fcc20
add esp, 4
cmp dword [esi + 0x14], 0
jne 0x4fc057
cmp dword [edi + 4], 0
mov ebx, dword [ebp + 0xc]
jne 0x4fbe8b
cmp dword [esi + 0x74], 0
jne 0x4fbe8b
test ebx, ebx
je 0x4fbf6f
cmp dword [esi + 4], 0x29a
je 0x4fbf6f
mov eax, dword [esi + 0x84]
push ebx
push esi
test eax, eax
jne 0x4fbe9e
call fcn.004faab0
jmp 0x4fbec8
mov ecx, dword [esi + 0x88]
cmp ecx, 2
jne 0x4fbeb0
call fcn.004fc500
jmp 0x4fbec8
cmp ecx, 3
jne 0x4fbebc
call fcn.004fc6f0
jmp 0x4fbec8
lea eax, [eax + eax*2]
mov eax, dword [eax*4 + 0x522e78]
call eax
add esp, 8
cmp eax, 2
je 0x4fbed5
cmp eax, 3
jne 0x4fbedc
mov dword [esi + 4], 0x29a
test eax, eax
je 0x4fc051
cmp eax, 2
je 0x4fc051
cmp eax, 1
jne 0x4fbf6f
cmp ebx, eax
jne 0x4fbf01
push esi
call fcn.004fcf10
add esp, 4
jmp 0x4fbf5c
cmp ebx, 5
je 0x4fbf5c
push 0
push 0
push 0
push esi
call fcn.004fd490
add esp, 0x10
cmp ebx, 3
jne 0x4fbf5c
mov eax, dword [esi + 0x44]
xor edx, edx
mov ecx, dword [esi + 0x4c]
mov word [eax + ecx*2 - 2], dx
mov eax, dword [esi + 0x4c]
lea eax, [eax*2 - 2]
push eax
push edx
push dword [esi + 0x44]
call fcn.004d8c50
add esp, 0xc
cmp dword [esi + 0x74], 0
jne 0x4fbf5c
mov dword [esi + 0x6c], 0
mov dword [esi + 0x5c], 0
mov dword [esi + 0x16b4], 0
push edi
call fcn.004fcc20
add esp, 4
cmp dword [edi + 0x10], 0
je 0x4fc057
cmp ebx, 4
jne 0x4fc05e
mov eax, dword [esi + 0x18]
test eax, eax
jg 0x4fbf89
pop esi
pop edi
lea eax, [ebx - 3]
pop ebx
mov esp, ebp
pop ebp
ret
cmp eax, 2
jne 0x4fc014
mov edx, dword [esi + 0x14]
movzx eax, byte [edi + 0x30]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
movzx eax, byte [edi + 0x31]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
movzx eax, byte [edi + 0x32]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
movzx eax, byte [edi + 0x33]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
movzx eax, byte [edi + 8]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 9]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 0xa]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 0xb]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
jmp 0x4fc02d
movzx eax, word [edi + 0x32]
push eax
push esi
call fcn.004fcdf0
movzx eax, word [edi + 0x30]
push eax
push esi
call fcn.004fcdf0
add esp, 0x10
push edi
call fcn.004fcc20
mov eax, dword [esi + 0x18]
add esp, 4
test eax, eax
jle 0x4fc042
neg eax
mov dword [esi + 0x18], eax
xor eax, eax
cmp dword [esi + 0x14], eax
pop esi
pop edi
sete al
pop ebx
mov esp, ebp
pop ebp
ret
cmp dword [edi + 0x10], 0
jne 0x4fc05e
mov dword [esi + 0x28], 0xffffffff
pop esi
pop edi
xor eax, eax
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, dword [str.stream_error]
pop esi
mov dword [edi + 0x18], eax
mov eax, 0xfffffffe
pop edi
pop ebx
mov esp, ebp
pop ebp
ret
pop edi
mov eax, 0xfffffffe
pop ebx
mov esp, ebp
pop ebp
ret