Function at 0x521e50
Capabilities:
Send data
Send data on socket

Disassembly:
sub esp, 0x14c
mov eax, dword [0x6a8c7c]
xor eax, esp
mov dword [esp + 0x148], eax
push ebx
push ebp
push esi
mov esi, dword [esp + 0x15c]
xor ebx, ebx
push edi
mov eax, str.netascii
mov edi, str.octet
mov ebp, dword [esi + 0x10]
cmp byte [ebp + 0xd62], bl
cmovne edi, eax
mov eax, dword [esp + 0x164]
cmp eax, 7
ja case.0x5218e7.1
jmp dword [eax*4 + 0x521d2c]
inc dword [esi + 0x18]
mov eax, dword [esi + 0x18]
cmp eax, dword [esi + 0x20]
jle 0x52190d
mov dword [esi + 8], 0xffffff9e
xor eax, eax
mov dword [esi], 3
jmp 0x521d10
mov eax, dword [esi + 0x14c]
cmp byte [ebp + 0xd68], bl
mov byte [eax], bl
mov eax, dword [esi + 0x14c]
je 0x52195b
mov byte [eax + 1], 2
mov eax, dword [esi + 0x10]
mov ecx, dword [esi + 0x14c]
add ecx, 4
mov dword [eax + 0x118], ecx
mov edx, dword [ebp + 0xc70]
mov eax, edx
mov ecx, dword [ebp + 0xc74]
and eax, ecx
cmp eax, 0xffffffff
je 0x52195f
push ecx
push edx
push ebp
call fcn.0050a510
add esp, 0xc
jmp 0x52195f
mov byte [eax + 1], 1
push 4
push 0
lea eax, [esp + 0x18]
push eax
mov eax, dword [esi + 0x10]
push 0
mov eax, dword [eax + 0xc9c]
inc eax
push eax
call fcn.00525cd0
mov ebx, eax
add esp, 0x14
test ebx, ebx
jne 0x521d0e
mov ecx, dword [esp + 0x10]
lea edx, [ecx + 1]
nop
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521990
sub ecx, edx
mov edx, edi
lea eax, [edx + 1]
mov dword [esp + 0x14], eax
mov al, byte [edx]
inc edx
test al, al
jne 0x5219a2
sub edx, dword [esp + 0x14]
mov eax, dword [esi + 0x13c]
sub eax, edx
sub eax, 4
cmp ecx, eax
jbe 0x5219de
push str.TFTP_file_name_too_long
push ebp
call fcn.004f9630
push dword [esp + 0x18]
call dword [0x6a4004]
add esp, 0xc
mov eax, 0x47
jmp 0x521d10
mov eax, dword [esi + 0x14c]
push 0
push edi
push 0
push dword [esp + 0x1c]
add eax, 2
push str._s_c_s_c
push dword [esi + 0x13c]
push eax
call fcn.00500bc0
mov ecx, dword [esp + 0x2c]
add esp, 0x1c
lea edx, [ecx + 1]
nop dword [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521a10
sub ecx, edx
lea edx, [edi + 1]
nop dword [eax]
mov al, byte [edi]
inc edi
test al, al
jne 0x521a20
sub edi, edx
add edi, 4
add edi, ecx
cmp byte [ebp + 0x6b0], al
jne 0x521c75
cmp byte [ebp + 0xd68], al
je 0x521a6f
mov edx, dword [ebp + 0xc70]
mov eax, edx
mov ecx, dword [ebp + 0xc74]
and eax, ecx
cmp eax, 0xffffffff
je 0x521a6f
push ecx
push edx
push str._lld
lea eax, [esp + 0x24]
push 0x40
push eax
call fcn.00500bc0
add esp, 0x14
jmp 0x521a79
mov eax, 0x30
mov word [esp + 0x18], ax
lea ebx, [edi + 6]
cmp ebx, dword [esi + 0x13c]
jbe 0x521abc
push dword [esi + 0x140]
lea eax, [esp + 0x1c]
push 0x6250b4
push 0x40
push eax
call fcn.00500bc0
push dword [esi + 0x1c]
lea eax, [esp + 0x2c]
push 0x6250b4
push 0x40
push eax
call fcn.00500bc0
add esp, 0x20
push str.TFTP_buffer_too_small_for_options
jmp 0x5219c1
mov ecx, dword [esi + 0x14c]
mov edx, str.tsize
add ecx, edi
nop dword [eax]
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x521ad0
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521ae5
sub ecx, edx
lea eax, [ebx + 1]
add eax, ecx
cmp eax, dword [esi + 0x13c]
ja 0x521a84
mov ecx, dword [esi + 0x14c]
lea edx, [esp + 0x18]
add ecx, ebx
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x521b07
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521b20
push dword [esi + 0x140]
lea eax, [esp + 0x1c]
sub ecx, edx
push 0x6250b4
push 0x40
lea edi, [ebx + 1]
push eax
add edi, ecx
call fcn.00500bc0
lea ebx, [edi + 8]
add esp, 0x10
cmp ebx, dword [esi + 0x13c]
ja 0x521b8b
mov ecx, dword [esi + 0x14c]
mov edx, str.blksize
add ecx, edi
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x521b60
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521b75
sub ecx, edx
lea eax, [ebx + 1]
add eax, ecx
cmp eax, dword [esi + 0x13c]
jbe 0x521bac
push dword [esi + 0x1c]
lea eax, [esp + 0x1c]
push 0x6250b4
push 0x40
push eax
call fcn.00500bc0
add esp, 0x10
push str.TFTP_buffer_too_small_for_options
jmp 0x5219c1
mov ecx, dword [esi + 0x14c]
lea edx, [esp + 0x18]
add ecx, ebx
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x521bb8
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521bd0
push dword [esi + 0x1c]
lea eax, [esp + 0x1c]
sub ecx, edx
push 0x6250b4
push 0x40
lea edi, [ebx + 1]
push eax
add edi, ecx
call fcn.00500bc0
lea ebx, [edi + 8]
add esp, 0x10
cmp ebx, dword [esi + 0x13c]
ja 0x521ab2
mov ecx, dword [esi + 0x14c]
mov edx, str.timeout
add ecx, edi
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x521c11
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521c26
sub ecx, edx
lea eax, [ebx + 1]
add eax, ecx
cmp eax, dword [esi + 0x13c]
ja 0x521ab2
mov ecx, dword [esi + 0x14c]
lea edx, [esp + 0x18]
add ecx, ebx
nop dword [eax]
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x521c50
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x521c65
sub ecx, edx
lea edi, [ebx + 1]
add edi, ecx
xor ebx, ebx
mov eax, dword [ebp + 0x18]
mov eax, dword [eax + 0x60]
push dword [eax + 0xc]
add eax, 0x10
push eax
push 0
push edi
push dword [esi + 0x14c]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
cmp eax, edi
je 0x521cbd
push 0x100
lea eax, [esp + 0x5c]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0050c530
push eax
push 0x624af4
push ebp
call fcn.004f9630
add esp, 0x18
push dword [esp + 0x10]
call dword [0x6a4004]
add esp, 4
jmp 0x521d0e
push 6
push esi
cmp byte [ebp + 0xd68], bl
je 0x521cef
call fcn.005210d0
mov ebx, eax
jmp 0x521d0b
push 4
push esi
call fcn.005210d0
mov ebx, eax
jmp 0x521d0b
push 3
push esi
call fcn.00521090
mov ebx, eax
jmp 0x521d0b
mov dword [esi], 3
jmp 0x521d0e
push str.tftp_send_first:_internal_error
push ebp
call fcn.004f9630
add esp, 8
mov eax, ebx
mov ecx, dword [esp + 0x158]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.005d584c
add esp, 0x14c
ret
mov eax, dword [esp + 4]
mov edx, dword [eax]
mov ecx, dword [eax + 0x10]
cmp edx, 3
ja case.default.0x521e5e
jmp dword [edx*4 + 0x521eb0]
mov dword [esp + 4], eax
jmp 0x5218a0
mov dword [esp + 4], eax
jmp fcn.00521550
mov dword [esp + 4], eax
jmp fcn.00521ff0
push str.TFTP_finished
push 0x624af4
push ecx
call fcn.004f9700
add esp, 0xc
xor eax, eax
ret
push str.Internal_state_machine_error
push 0x624af4
push ecx
call fcn.004f9630
add esp, 0xc
mov eax, 0x47
ret