Function at 0x521ff0
Capabilities:
Send data
Send data on socket

Disassembly:
sub esp, 0x108
mov eax, dword [0x6a8c7c]
xor eax, esp
mov dword [esp + 0x104], eax
mov eax, dword [esp + 0x110]
push ebx
push esi
mov esi, dword [esp + 0x114]
xor ebx, ebx
lea ecx, [eax - 4]
push edi
mov edi, dword [esi + 0x10]
cmp ecx, 3
ja case.default.0x522026
jmp dword [ecx*4 + 0x52239c]
cmp eax, 4
jne 0x52211a
mov eax, dword [esi + 0x148]
movzx ecx, byte [eax + 2]
movzx eax, byte [eax + 3]
shl ecx, 8
or ecx, eax
movzx eax, word [esi + 0x144]
mov edx, eax
cmp ecx, edx
je 0x522105
test ax, ax
jne 0x52206b
cmp ecx, 0xffff
je 0x522105
push edx
push ecx
push str.Received_ACK_for_block__d__expecting__d
push edi
call fcn.004f9700
inc dword [esi + 0x18]
add esp, 0x10
mov eax, dword [esi + 0x18]
cmp eax, dword [esi + 0x20]
jle 0x5220a6
movzx eax, word [esi + 0x144]
push eax
push str.tftp_tx:_giving_up_waiting_for_block__d_ack
push edi
call fcn.004f9630
add esp, 0xc
mov ebx, 0x37
jmp 0x52237f
push dword [esi + 0x130]
lea eax, [esi + 0xb0]
push eax
mov eax, dword [esi + 0x138]
push 0
add eax, 4
push eax
push dword [esi + 0x14c]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x52237f
push 0x100
lea eax, [esp + 0x14]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0050c530
push eax
push 0x624af4
push edi
call fcn.004f9630
add esp, 0x18
mov ebx, 0x37
jmp 0x52237f
lea eax, [esi + 0x28]
push eax
call fcn.005fc1aa
add esp, 4
inc word [esi + 0x144]
jmp 0x522126
mov eax, 1
mov word [esi + 0x144], ax
mov dword [esi + 0x18], ebx
mov eax, dword [esi + 0x14c]
mov byte [eax], bl
mov eax, dword [esi + 0x14c]
mov byte [eax + 1], 3
movzx edx, word [esi + 0x144]
mov eax, dword [esi + 0x14c]
mov ecx, edx
shr ecx, 8
mov byte [eax + 2], cl
mov eax, dword [esi + 0x14c]
mov byte [eax + 3], dl
cmp word [esi + 0x144], 1
jbe 0x522191
mov eax, dword [esi + 0x138]
cmp eax, dword [esi + 0x13c]
jge 0x522191
pop edi
mov dword [esi], 3
xor eax, eax
pop esi
pop ebx
mov ecx, dword [esp + 0x104]
xor ecx, esp
call fcn.005d584c
add esp, 0x108
ret
mov eax, dword [esi + 0x10]
mov ecx, dword [esi + 0x14c]
add ecx, 4
mov dword [esi + 0x138], ebx
mov dword [eax + 0x118], ecx
lea ecx, [esp + 0xc]
mov eax, dword [esi + 0x13c]
sub eax, dword [esi + 0x138]
push ecx
push eax
push edi
call fcn.004fea80
mov ebx, eax
add esp, 0xc
test ebx, ebx
jne 0x52237f
nop
mov eax, dword [esi + 0x10]
mov ecx, dword [esp + 0xc]
add dword [esi + 0x138], ecx
add dword [eax + 0x118], ecx
mov ecx, dword [esi + 0x138]
mov eax, dword [esi + 0x13c]
cmp ecx, eax
jge 0x522216
cmp dword [esp + 0xc], 0
je 0x522216
lea edx, [esp + 0xc]
sub eax, ecx
push edx
push eax
push edi
call fcn.004fea80
mov ebx, eax
add esp, 0xc
test ebx, ebx
je 0x5221d0
jmp 0x52237f
push dword [esi + 0x130]
lea eax, [esi + 0xb0]
push eax
push 0
lea eax, [ecx + 4]
push eax
push dword [esi + 0x14c]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
js 0x5222d0
mov eax, dword [esi + 0x138]
cdq
add dword [edi + 0xa0], eax
adc dword [edi + 0xa4], edx
push dword [edi + 0xa4]
push dword [edi + 0xa0]
push edi
call fcn.0050a4f0
jmp 0x52237c
movzx eax, word [esi + 0x144]
inc dword [esi + 0x18]
inc eax
push dword [esi + 0x18]
movzx eax, ax
push eax
push str.Timeout_waiting_for_block__d_ACK.__Retries___d
push edi
call fcn.004f9700
mov eax, dword [esi + 0x18]
add esp, 0x10
cmp eax, dword [esi + 0x20]
jle 0x5222a4
mov dword [esi + 8], 0xffffff9d
mov dword [esi], 3
jmp 0x52237f
push dword [esi + 0x130]
lea eax, [esi + 0xb0]
push eax
mov eax, dword [esi + 0x138]
push 0
add eax, 4
push eax
push dword [esi + 0x14c]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x522253
push 0x100
lea eax, [esp + 0x14]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.0050c530
push eax
push 0x624af4
push edi
call fcn.004f9630
add esp, 0x18
mov eax, 0x37
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x104]
xor ecx, esp
call fcn.005d584c
add esp, 0x108
ret
mov dword [esi], 3
mov eax, dword [esi + 0x14c]
mov byte [eax], bl
mov eax, dword [esi + 0x14c]
mov byte [eax + 1], 5
movzx edx, word [esi + 0x144]
mov eax, dword [esi + 0x14c]
mov ecx, edx
shr ecx, 8
mov byte [eax + 2], cl
mov eax, dword [esi + 0x14c]
mov byte [eax + 3], dl
lea eax, [esi + 0xb0]
push dword [esi + 0x130]
push eax
push 0
push 4
push dword [esi + 0x14c]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
mov dword [esi], 3
jmp 0x52237f
push eax
push str.tftp_tx:_internal_error__event:__i
push edi
call fcn.004f9630
add esp, 0xc
mov ecx, dword [esp + 0x110]
mov eax, ebx
pop edi
pop esi
pop ebx
xor ecx, esp
call fcn.005d584c
add esp, 0x108
ret