Function at 0x4df850
Capabilities:
Compress data via zlib inflate or deflate

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x10
push edi
mov dword [ebp - 4], edx
mov edi, ecx
call fcn.004df5e0
test eax, eax
jne 0x4e0201
cmp edx, 5
ja 0x4e0201
push esi
mov esi, dword [edi + 0x1c]
cmp dword [edi + 0xc], eax
je 0x4e01ee
cmp dword [edi + 4], eax
je 0x4df88c
cmp dword [edi], eax
je 0x4e01ee
mov eax, dword [esi + 4]
cmp eax, 0x29a
jne 0x4df89f
cmp edx, 4
jne 0x4e01ee
cmp dword [edi + 0x10], 0
push ebx
je 0x4df914
cmp dword [esi + 0x14], 0
mov ecx, dword [esi + 0x28]
mov dword [esi + 0x28], edx
je 0x4df8c8
mov ecx, edi
call fcn.004df800
cmp dword [edi + 0x10], 0
je 0x4e01de
mov ebx, dword [esi + 4]
jmp 0x4df902
cmp dword [edi + 4], 0
mov ebx, eax
jne 0x4df902
xor eax, eax
mov edx, 9
cmp ecx, 4
mov dword [ebp - 0x10], edx
cmovg eax, edx
lea edx, [ecx + ecx]
sub edx, eax
xor ecx, ecx
mov eax, dword [ebp - 4]
cmp eax, 4
cmovg ecx, dword [ebp - 0x10]
add eax, eax
sub eax, ecx
cmp eax, edx
jg 0x4df902
cmp dword [ebp - 4], 4
mov ebx, dword [esi + 4]
jne 0x4df914
cmp ebx, 0x29a
jne 0x4df928
cmp dword [edi + 4], 0
je 0x4df9e7
mov eax, dword [str.buffer_error]
pop ebx
mov dword [edi + 0x18], eax
mov eax, 0xfffffffb
pop esi
pop edi
mov esp, ebp
pop ebp
ret
cmp ebx, 0x2a
jne 0x4df9e7
mov eax, dword [esi + 0x30]
shl eax, 0xc
sub eax, 0x7800
cmp dword [esi + 0x88], 2
jge 0x4df973
mov ecx, dword [esi + 0x84]
cmp ecx, 2
jl 0x4df973
cmp ecx, 6
jge 0x4df95d
lea edx, [ebx + 0x16]
lea ecx, [ebx + 0x36]
jmp 0x4df97a
jne 0x4df969
mov edx, 0x80
lea ecx, [edx + 0x20]
jmp 0x4df97a
mov edx, 0xc0
lea ecx, [edx + 0x20]
jmp 0x4df97a
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 edx, ecx
shl edx, 5
sub edx, ecx
mov ecx, esi
call fcn.004df7d0
cmp dword [esi + 0x6c], 0
je 0x4df9be
movzx edx, word [edi + 0x32]
mov ecx, esi
call fcn.004df7d0
movzx edx, word [edi + 0x30]
mov ecx, esi
call fcn.004df7d0
push 0
xor edx, edx
xor ecx, ecx
call fcn.004e18e0
add esp, 4
mov dword [edi + 0x30], eax
mov ecx, edi
mov dword [esi + 4], 0x71
call fcn.004df800
cmp dword [esi + 0x14], 0
jne 0x4e01de
mov eax, dword [esi + 4]
cmp eax, 0x39
jne 0x4dfbf4
mov dword [edi + 0x30], 0
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 0x4dfac6
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 0x4dfa7c
mov cl, 2
jmp 0x4dfa90
cmp dword [esi + 0x88], 2
jge 0x4dfa8e
cmp eax, 2
jl 0x4dfa8e
xor cl, cl
jmp 0x4dfa90
mov cl, 4
mov eax, dword [esi + 8]
mov byte [edx + eax], cl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], 0xa
mov ecx, edi
inc dword [esi + 0x14]
mov dword [esi + 4], 0x71
call fcn.004df800
cmp dword [esi + 0x14], 0
jne 0x4e01de
mov eax, dword [esi + 4]
jmp 0x4dfbf4
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 0x4dfb61
mov cl, 2
jmp 0x4dfb75
cmp dword [esi + 0x88], 2
jge 0x4dfb73
cmp eax, 2
jl 0x4dfb73
xor cl, cl
jmp 0x4dfb75
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 0x4dfbc3
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 0x4dfbe1
mov eax, dword [esi + 8]
test eax, eax
je 0x4dfbde
mov ecx, dword [edi + 0x30]
push edx
mov edx, eax
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
mov dword [esi + 0x20], 0
mov eax, 0x45
mov dword [esi + 4], 0x45
cmp eax, 0x45
jne 0x4dfd0e
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x10], 0
je 0x4dfd02
movzx edx, word [eax + 0x14]
sub edx, dword [esi + 0x20]
mov ecx, dword [esi + 0x14]
mov ebx, dword [esi + 0xc]
mov dword [ebp - 0xc], ecx
mov dword [ebp - 8], edx
lea eax, [ecx + edx]
cmp eax, ebx
jbe 0x4dfcab
mov eax, ecx
mov dword [ebp - 0x10], ecx
nop dword [eax]
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 - 0x10]
push eax
call fcn.0050be80
mov eax, dword [esi + 0x1c]
add esp, 0xc
mov ecx, dword [esi + 0xc]
mov dword [esi + 0x14], ecx
cmp dword [eax + 0x2c], 0
je 0x4dfc7e
mov eax, dword [ebp - 0xc]
cmp ecx, eax
jbe 0x4dfc7e
mov edx, dword [esi + 8]
sub ecx, eax
add edx, eax
jne 0x4dfc6f
xor eax, eax
jmp 0x4dfc7b
push ecx
mov ecx, dword [edi + 0x30]
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
add dword [esi + 0x20], ebx
mov ecx, edi
call fcn.004df800
cmp dword [esi + 0x14], 0
jne 0x4e01de
mov edx, dword [ebp - 8]
xor ecx, ecx
sub edx, ebx
mov dword [ebp - 0xc], ecx
mov ebx, dword [esi + 0xc]
xor eax, eax
mov dword [ebp - 8], edx
mov dword [ebp - 0x10], eax
cmp edx, ebx
ja 0x4dfc30
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.0050be80
mov ecx, dword [ebp - 8]
add esp, 0xc
mov eax, dword [esi + 0x1c]
add ecx, dword [esi + 0x14]
mov dword [esi + 0x14], ecx
cmp dword [eax + 0x2c], 0
je 0x4dfcfb
mov eax, dword [ebp - 0xc]
cmp ecx, eax
jbe 0x4dfcfb
mov edx, dword [esi + 8]
sub ecx, eax
add edx, eax
jne 0x4dfcec
xor eax, eax
jmp 0x4dfcf8
push ecx
mov ecx, dword [edi + 0x30]
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
mov dword [esi + 0x20], 0
mov dword [esi + 4], 0x49
mov eax, 0x49
cmp eax, 0x49
jne 0x4dfddf
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x1c], 0
je 0x4dfdd3
mov ecx, dword [esi + 0x14]
mov ebx, ecx
mov dword [ebp - 0xc], ecx
nop dword [eax]
cmp ebx, dword [esi + 0xc]
jne 0x4dfd78
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4dfd5e
cmp ebx, ecx
jbe 0x4dfd5e
mov edx, dword [esi + 8]
sub ebx, ecx
add edx, ecx
jne 0x4dfd4f
xor eax, eax
jmp 0x4dfd5b
mov ecx, dword [edi + 0x30]
push ebx
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
mov ecx, edi
call fcn.004df800
cmp dword [esi + 0x14], 0
jne 0x4e01de
mov dword [ebp - 0xc], 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 0x4dfda0
mov ecx, dword [ebp - 0xc]
jmp 0x4dfd30
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4dfdcc
mov eax, dword [ebp - 0xc]
cmp ebx, eax
jbe 0x4dfdcc
mov edx, dword [esi + 8]
sub ebx, eax
add edx, eax
jne 0x4dfdbd
xor eax, eax
jmp 0x4dfdc9
mov ecx, dword [edi + 0x30]
push ebx
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
mov dword [esi + 0x20], 0
mov dword [esi + 4], 0x5b
mov eax, 0x5b
cmp eax, 0x5b
jne 0x4dfeaf
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x24], 0
je 0x4dfea6
mov ecx, dword [esi + 0x14]
mov ebx, ecx
mov dword [ebp - 0xc], ecx
nop dword [eax]
cmp ebx, dword [esi + 0xc]
jne 0x4dfe48
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4dfe2e
cmp ebx, ecx
jbe 0x4dfe2e
mov edx, dword [esi + 8]
sub ebx, ecx
add edx, ecx
jne 0x4dfe1f
xor eax, eax
jmp 0x4dfe2b
mov ecx, dword [edi + 0x30]
push ebx
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
mov ecx, edi
call fcn.004df800
cmp dword [esi + 0x14], 0
jne 0x4e01de
mov dword [ebp - 0xc], 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 0x4dfe70
mov ecx, dword [ebp - 0xc]
jmp 0x4dfe00
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4dfea6
mov eax, dword [ebp - 0xc]
cmp ebx, eax
jbe 0x4dfea6
mov edx, dword [esi + 8]
sub ebx, eax
add edx, eax
jne 0x4dfe97
xor eax, eax
mov dword [edi + 0x30], eax
mov dword [esi + 4], 0x67
jmp 0x4dfeb4
mov ecx, dword [edi + 0x30]
push ebx
call fcn.004e23e0
add esp, 4
mov dword [edi + 0x30], eax
mov dword [esi + 4], 0x67
jmp 0x4dfeb4
cmp eax, 0x67
jne 0x4dff16
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x4dfefe
mov edx, dword [esi + 0x14]
lea eax, [edx + 2]
cmp eax, dword [esi + 0xc]
jbe 0x4dfeda
mov ecx, edi
call fcn.004df800
mov edx, dword [esi + 0x14]
test edx, edx
jne 0x4e01de
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 0x30]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
movzx eax, byte [edi + 0x31]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov dword [edi + 0x30], 0
mov ecx, edi
mov dword [esi + 4], 0x71
call fcn.004df800
cmp dword [esi + 0x14], 0
jne 0x4e01de
cmp dword [edi + 4], 0
mov ebx, dword [ebp - 4]
jne 0x4dff3a
cmp dword [esi + 0x74], 0
jne 0x4dff3a
test ebx, ebx
je 0x4e00fb
cmp dword [esi + 4], 0x29a
je 0x4e00fb
mov eax, dword [esi + 0x84]
test eax, eax
jne 0x4dff4d
push ebx
push esi
call fcn.004e0680
jmp 0x4dff81
mov ecx, dword [esi + 0x88]
cmp ecx, 2
jne 0x4dff63
mov edx, ebx
mov ecx, esi
call fcn.004e16c0
jmp 0x4dff84
cmp ecx, 3
jne 0x4dff73
mov edx, ebx
mov ecx, esi
call fcn.004e1370
jmp 0x4dff84
lea eax, [eax + eax*2]
mov eax, dword [eax*4 + 0x5619d0]
push ebx
push esi
call eax
add esp, 8
cmp eax, 2
je 0x4dff8e
cmp eax, 3
jne 0x4dff95
mov dword [esi + 4], 0x29a
test eax, eax
je 0x4e01d8
cmp eax, 2
je 0x4e01d8
cmp eax, 1
jne 0x4e00fb
cmp ebx, eax
jne 0x4e008e
mov ecx, dword [esi + 0x16bc]
mov eax, 2
shl ax, cl
or ax, word [esi + 0x16b8]
movzx edx, ax
cmp ecx, 0xd
jle 0x4e0018
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov word [esi + 0x16b8], dx
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, byte [esi + 0x16b9]
mov byte [edx + ecx], al
mov cl, 0x10
movzx eax, word [esi + 0x16bc]
inc dword [esi + 0x14]
sub cl, al
add dword [esi + 0x16bc], 0xfffffff3
mov eax, 2
shr ax, cl
movzx eax, ax
jmp 0x4e0023
lea eax, [ecx + 3]
mov dword [esi + 0x16bc], eax
mov eax, edx
mov word [esi + 0x16b8], ax
mov eax, dword [esi + 0x16bc]
movzx edx, word [esi + 0x16b8]
cmp eax, 9
jle 0x4e0073
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, byte [esi + 0x16b9]
mov byte [edx + ecx], al
xor eax, eax
inc dword [esi + 0x14]
mov ecx, esi
add dword [esi + 0x16bc], 0xfffffff7
mov word [esi + 0x16b8], ax
call fcn.004e3d30
jmp 0x4e00ea
add eax, 7
mov ecx, esi
mov dword [esi + 0x16bc], eax
mov eax, edx
mov word [esi + 0x16b8], ax
call fcn.004e3d30
jmp 0x4e00ea
cmp ebx, 5
je 0x4e00ea
push 0
push 0
xor edx, edx
mov ecx, esi
call fcn.004e34e0
add esp, 8
cmp ebx, 3
jne 0x4e00ea
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.0050c400
add esp, 0xc
cmp dword [esi + 0x74], 0
jne 0x4e00ea
mov dword [esi + 0x6c], 0
mov dword [esi + 0x5c], 0
mov dword [esi + 0x16b4], 0
mov ecx, edi
call fcn.004df800
cmp dword [edi + 0x10], 0
je 0x4e01de
cmp ebx, 4
jne 0x4e01e5
mov eax, dword [esi + 0x18]
test eax, eax
jg 0x4e0115
lea eax, [ebx - 3]
pop ebx
pop esi
pop edi
mov esp, ebp
pop ebp
ret
cmp eax, 2
jne 0x4e01a0
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 0x4e01b6
movzx edx, word [edi + 0x32]
mov ecx, esi
call fcn.004df7d0
movzx edx, word [edi + 0x30]
mov ecx, esi
call fcn.004df7d0
mov ecx, edi
call fcn.004df800
mov eax, dword [esi + 0x18]
test eax, eax
jle 0x4e01c9
neg eax
mov dword [esi + 0x18], eax
xor eax, eax
cmp dword [esi + 0x14], eax
pop ebx
pop esi
sete al
pop edi
mov esp, ebp
pop ebp
ret
cmp dword [edi + 0x10], 0
jne 0x4e01e5
mov dword [esi + 0x28], 0xffffffff
pop ebx
pop esi
xor eax, eax
pop edi
mov esp, ebp
pop ebp
ret
mov eax, dword [str.stream_error]
mov dword [edi + 0x18], eax
mov eax, 0xfffffffe
pop esi
pop edi
mov esp, ebp
pop ebp
ret
mov eax, 0xfffffffe
pop edi
mov esp, ebp
pop ebp
ret