Function at 0x5157fd
Capabilities:
Compress data via zlib inflate or deflate

Disassembly:
push ebp
mov ebp, esp
push ecx
push ecx
push ebx
push esi
push edi
mov edi, dword [ebp + 8]
test edi, edi
je 0x515fc7
mov esi, dword [edi + 0x1c]
test esi, esi
je 0x515fc7
mov ebx, dword [ebp + 0xc]
cmp ebx, 5
ja 0x515fc7
cmp dword [edi + 0xc], 0
je 0x515fbf
cmp dword [edi], 0
jne 0x515840
cmp dword [edi + 4], 0
jne 0x515fbf
cmp dword [esi + 4], 0x29a
jne 0x515852
cmp ebx, 4
jne 0x515fbf
cmp dword [edi + 0x10], 0
jne 0x515867
mov eax, dword [str.buffer_error]
mov dword [edi + 0x18], eax
push 0xfffffffffffffffb
jmp 0x515fc9
cmp dword [esi + 4], 0x2a
mov eax, dword [esi + 0x28]
mov dword [esi], edi
mov dword [ebp - 8], eax
mov dword [esi + 0x28], ebx
jne 0x515b0f
cmp dword [esi + 0x18], 2
jne 0x515a77
push 0
push 0
push 0
call fcn.00518204
mov dword [edi + 0x30], eax
add esp, 0xc
mov eax, dword [esi + 0x14]
mov ecx, 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
inc dword [esi + 0x14]
mov edx, dword [esi + 0x1c]
mov ecx, dword [esi + 0x14]
test edx, edx
jne 0x51594e
mov eax, dword [esi + 8]
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov ecx, dword [esi + 0x14]
mov eax, dword [esi + 8]
mov byte [ecx + eax], dl
inc dword [esi + 0x14]
mov eax, dword [esi + 0x84]
mov edx, dword [esi + 0x14]
cmp eax, 9
jne 0x515917
push 2
jmp 0x51592b
cmp dword [esi + 0x88], 2
jge 0x515929
cmp eax, 2
jl 0x515929
xor ecx, ecx
jmp 0x51592c
push 4
pop ecx
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], 0xb
inc dword [esi + 0x14]
mov dword [esi + 4], 0x71
jmp 0x515b0f
cmp dword [edx + 0x24], 0
sete cl
dec cl
and cl, 0x10
cmp dword [edx + 0x2c], 0
sete al
dec al
and al, 2
add cl, al
cmp dword [edx + 0x1c], 0
sete al
dec al
and al, 8
add cl, al
cmp dword [edx + 0x10], 0
sete al
dec al
and al, 4
add cl, al
cmp dword [edx], 0
mov edx, dword [esi + 0x14]
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]
mov al, 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]
mov al, byte [eax + 5]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, 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]
mov al, byte [eax + 7]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov eax, dword [esi + 0x84]
mov edx, dword [esi + 0x14]
cmp eax, 9
jne 0x5159ef
push 2
jmp 0x515a03
cmp dword [esi + 0x88], 2
jge 0x515a01
cmp eax, 2
jl 0x515a01
xor ecx, ecx
jmp 0x515a04
push 4
pop ecx
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 eax, dword [esi + 0x1c]
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
cmp dword [eax + 0x10], 0
je 0x515a4c
mov ecx, dword [esi + 8]
mov al, byte [eax + 0x14]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov eax, dword [esi + 0x1c]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, 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 0x515a67
push edx
push dword [esi + 8]
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
and dword [esi + 0x20], 0
mov dword [esi + 4], 0x45
jmp 0x515b0f
mov ecx, dword [esi + 0x30]
shl ecx, 0xc
sub ecx, 0x7800
cmp dword [esi + 0x88], 2
jge 0x515aa9
mov edx, dword [esi + 0x84]
cmp edx, 2
jl 0x515aa9
xor eax, eax
cmp edx, 6
jge 0x515aa1
inc eax
jmp 0x515aab
setne al
add eax, 2
jmp 0x515aab
xor eax, eax
shl eax, 6
or eax, ecx
mov dword [ebp + 8], 0x1f
mov ecx, eax
mov dword [esi + 4], 0x71
or ecx, 0x20
cmp dword [esi + 0x6c], 0
cmove ecx, eax
xor edx, edx
mov eax, ecx
div dword [ebp + 8]
sub ecx, edx
add ecx, dword [ebp + 8]
push ecx
push esi
call fcn.00516a30
cmp dword [esi + 0x6c], 0
pop ecx
pop ecx
je 0x515afe
movzx eax, word [edi + 0x32]
push eax
push esi
call fcn.00516a30
movzx eax, word [edi + 0x30]
push eax
push esi
call fcn.00516a30
add esp, 0x10
push 0
push 0
push 0
call fcn.00519cee
add esp, 0xc
mov dword [edi + 0x30], eax
cmp dword [esi + 4], 0x45
jne 0x515bdc
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x10], 0
je 0x515bd5
movzx eax, word [eax + 0x14]
mov ecx, dword [esi + 0x14]
mov dword [ebp + 8], ecx
cmp dword [esi + 0x20], eax
jae 0x515b9f
mov ebx, dword [esi + 0x14]
cmp ebx, dword [esi + 0xc]
jne 0x515b75
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515b61
cmp ebx, ecx
jbe 0x515b61
mov eax, dword [esi + 8]
sub ebx, ecx
push ebx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
push edi
call fcn.00516800
mov ebx, dword [esi + 0x14]
pop ecx
mov ecx, ebx
mov dword [ebp + 8], ecx
cmp ebx, dword [esi + 0xc]
je 0x515b9c
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 8]
mov edx, dword [eax + 0x10]
mov eax, dword [esi + 0x20]
mov al, byte [edx + eax]
mov byte [ebx + ecx], al
inc dword [esi + 0x14]
inc dword [esi + 0x20]
mov eax, dword [esi + 0x1c]
mov ecx, dword [ebp + 8]
movzx eax, word [eax + 0x14]
cmp dword [esi + 0x20], eax
jb 0x515b35
mov ebx, dword [ebp + 0xc]
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515bc6
mov eax, dword [esi + 0x14]
cmp eax, ecx
jbe 0x515bc6
sub eax, ecx
push eax
mov eax, dword [esi + 8]
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
mov ecx, dword [esi + 0x1c]
mov eax, dword [esi + 0x20]
cmp eax, dword [ecx + 0x14]
jne 0x515bdc
and dword [esi + 0x20], 0
mov dword [esi + 4], 0x49
cmp dword [esi + 4], 0x49
jne 0x515ca3
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x1c], 0
je 0x515c9c
mov ecx, dword [esi + 0x14]
mov dword [ebp + 8], ecx
mov edx, dword [esi + 0x14]
cmp edx, dword [esi + 0xc]
jne 0x515c39
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515c25
cmp edx, ecx
jbe 0x515c25
mov eax, dword [esi + 8]
sub edx, ecx
push edx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
push edi
call fcn.00516800
mov edx, dword [esi + 0x14]
pop ecx
mov ecx, edx
mov dword [ebp + 8], ecx
cmp edx, dword [esi + 0xc]
je 0x515c64
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 0x20]
mov eax, dword [eax + 0x1c]
movzx eax, byte [eax + ecx]
mov dword [ebp - 4], eax
lea eax, [ecx + 1]
mov ecx, dword [ebp - 4]
mov dword [esi + 0x20], eax
mov eax, dword [esi + 8]
mov byte [edx + eax], cl
inc dword [esi + 0x14]
test ecx, ecx
mov ecx, dword [ebp + 8]
je 0x515c6b
jmp 0x515bf9
mov dword [ebp - 4], 1
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515c92
mov eax, dword [esi + 0x14]
cmp eax, ecx
jbe 0x515c92
sub eax, ecx
push eax
mov eax, dword [esi + 8]
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
cmp dword [ebp - 4], 0
jne 0x515ca3
and dword [esi + 0x20], 0
mov dword [esi + 4], 0x5b
cmp dword [esi + 4], 0x5b
jne 0x515d66
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x24], 0
je 0x515d5f
mov ecx, dword [esi + 0x14]
mov dword [ebp + 8], ecx
mov edx, dword [esi + 0x14]
cmp edx, dword [esi + 0xc]
jne 0x515d00
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515cec
cmp edx, ecx
jbe 0x515cec
mov eax, dword [esi + 8]
sub edx, ecx
push edx
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
push edi
call fcn.00516800
mov edx, dword [esi + 0x14]
pop ecx
mov ecx, edx
mov dword [ebp + 8], ecx
cmp edx, dword [esi + 0xc]
je 0x515d2b
mov eax, dword [esi + 0x1c]
mov ecx, dword [esi + 0x20]
mov eax, dword [eax + 0x24]
movzx eax, byte [eax + ecx]
mov dword [ebp - 4], eax
lea eax, [ecx + 1]
mov ecx, dword [ebp - 4]
mov dword [esi + 0x20], eax
mov eax, dword [esi + 8]
mov byte [edx + eax], cl
inc dword [esi + 0x14]
test ecx, ecx
mov ecx, dword [ebp + 8]
je 0x515d32
jmp 0x515cc0
mov dword [ebp - 4], 1
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515d59
mov eax, dword [esi + 0x14]
cmp eax, ecx
jbe 0x515d59
sub eax, ecx
push eax
mov eax, dword [esi + 8]
add eax, ecx
push eax
push dword [edi + 0x30]
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
cmp dword [ebp - 4], 0
jne 0x515d66
mov dword [esi + 4], 0x67
cmp dword [esi + 4], 0x67
jne 0x515dc4
mov eax, dword [esi + 0x1c]
cmp dword [eax + 0x2c], 0
je 0x515dbd
mov eax, dword [esi + 0x14]
add eax, 2
cmp eax, dword [esi + 0xc]
jbe 0x515d87
push edi
call fcn.00516800
pop ecx
mov edx, dword [esi + 0x14]
lea eax, [edx + 2]
cmp eax, dword [esi + 0xc]
ja 0x515dc4
mov ecx, dword [esi + 8]
mov al, byte [edi + 0x30]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, byte [edi + 0x31]
mov byte [edx + ecx], al
xor eax, eax
inc dword [esi + 0x14]
push eax
push eax
push eax
call fcn.00518204
add esp, 0xc
mov dword [edi + 0x30], eax
mov dword [esi + 4], 0x71
xor eax, eax
cmp dword [esi + 0x14], eax
je 0x515de4
push edi
call fcn.00516800
xor eax, eax
pop ecx
cmp dword [edi + 0x10], eax
jne 0x515df7
or dword [esi + 0x28], 0xffffffff
xor eax, eax
jmp 0x515fca
cmp dword [edi + 4], eax
jne 0x515df7
cmp ebx, dword [ebp - 8]
jg 0x515df7
cmp ebx, 4
jne 0x515858
mov ecx, 0x29a
cmp dword [esi + 4], ecx
jne 0x515e0b
cmp dword [edi + 4], eax
je 0x515e10
jmp 0x515858
cmp dword [edi + 4], eax
jne 0x515e26
cmp dword [esi + 0x74], eax
jne 0x515e26
test ebx, ebx
je 0x515ee3
cmp dword [esi + 4], ecx
je 0x515ee3
mov eax, dword [esi + 0x88]
push ebx
push esi
cmp eax, 2
jne 0x515e3a
call fcn.005162f1
jmp 0x515e53
cmp eax, 3
jne 0x515e46
call fcn.005163fc
jmp 0x515e53
imul eax, dword [esi + 0x84], 0xc
call dword [eax + 0x54c430]
pop ecx
pop ecx
cmp eax, 2
je 0x515e5f
cmp eax, 3
jne 0x515e66
mov dword [esi + 4], 0x29a
test eax, eax
je 0x515fb0
cmp eax, 2
je 0x515fb0
cmp eax, 1
jne 0x515ee3
cmp ebx, eax
jne 0x515e89
push esi
call fcn.005184ab
pop ecx
jmp 0x515ed2
cmp ebx, 5
je 0x515ed2
xor eax, eax
push eax
push eax
push eax
push esi
call fcn.005188d7
add esp, 0x10
cmp ebx, 3
jne 0x515ed2
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.004de4f0
xor eax, eax
add esp, 0xc
cmp dword [esi + 0x74], eax
jne 0x515ed2
mov dword [esi + 0x6c], eax
mov dword [esi + 0x5c], eax
push edi
call fcn.00516800
cmp dword [edi + 0x10], 0
pop ecx
je 0x515dd9
cmp ebx, 4
jne 0x515ddd
cmp dword [esi + 0x18], 0
jg 0x515efa
xor eax, eax
inc eax
jmp 0x515fca
cmp dword [esi + 0x18], 2
jne 0x515f7a
mov ecx, dword [esi + 0x14]
mov al, byte [edi + 0x30]
mov edx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov al, byte [edi + 0x31]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov al, byte [edi + 0x32]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov al, byte [edi + 0x33]
mov ecx, dword [esi + 8]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov al, 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]
mov al, byte [edi + 9]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, byte [edi + 0xa]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
mov edx, dword [esi + 0x14]
mov ecx, dword [esi + 8]
mov al, byte [edi + 0xb]
mov byte [edx + ecx], al
inc dword [esi + 0x14]
jmp 0x515f93
movzx eax, word [edi + 0x32]
push eax
push esi
call fcn.00516a30
movzx eax, word [edi + 0x30]
push eax
push esi
call fcn.00516a30
add esp, 0x10
push edi
call fcn.00516800
mov eax, dword [esi + 0x18]
pop ecx
test eax, eax
jle 0x515fa6
neg eax
mov dword [esi + 0x18], eax
xor eax, eax
cmp dword [esi + 0x14], eax
sete al
jmp 0x515fca
cmp dword [edi + 0x10], 0
jne 0x515ddd
jmp 0x515dd9
mov eax, dword [str.stream_error]
mov dword [edi + 0x18], eax
push 0xfffffffffffffffe
pop eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret