Function at 0x520a97
Capabilities:
Send data
Send data on socket

Disassembly:
push ebx
push esi
mov esi, ecx
xor ebx, ebx
push edi
mov eax, dword [esi + 0x10]
mov edi, dword [eax]
mov eax, edx
sub eax, 4
je 0x520b97
dec eax
je 0x520b3a
dec eax
je 0x520b97
dec eax
je 0x520ad3
push edx
push str.tftp_tx:_internal_error__event:__i
push edi
call fcn.00510cc2
add esp, 0xc
jmp 0x520d36
inc dword [esi + 0x18]
movzx eax, word [esi + 0x40]
push dword [esi + 0x18]
inc eax
and eax, 0xffff
push eax
push str.Timeout_waiting_for_block__d_ACK.__Retries___d_n
push edi
call fcn.00510c4e
mov eax, dword [esi + 0x18]
add esp, 0x10
cmp eax, dword [esi + 0x20]
jle 0x520b06
mov dword [esi + 8], 0xffffff9d
jmp 0x520b8c
push dword [esi + 0x148]
lea eax, [esi + 0xc8]
push eax
mov eax, dword [esi + 0x150]
push ebx
add eax, 4
push eax
push dword [esi + 0x160]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x520d24
jmp 0x520cf7
mov dword [esi], 3
mov eax, dword [esi + 0x160]
mov byte [eax], bl
mov eax, dword [esi + 0x160]
mov byte [eax + 1], 5
movzx edx, word [esi + 0x40]
mov eax, dword [esi + 0x160]
mov ecx, edx
shr ecx, 8
mov byte [eax + 2], cl
mov eax, dword [esi + 0x160]
mov byte [eax + 3], dl
lea eax, [esi + 0xc8]
push dword [esi + 0x148]
push eax
push ebx
push 4
push dword [esi + 0x160]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
mov dword [esi], 3
jmp 0x520d36
xor eax, eax
inc eax
cmp edx, 4
jne 0x520c61
mov ecx, dword [esi + 0x15c]
movzx eax, byte [ecx + 2]
shl ax, 8
movzx edx, ax
movzx eax, byte [ecx + 3]
or edx, eax
movzx eax, word [esi + 0x40]
mov ecx, eax
cmp edx, ecx
je 0x520c50
test ax, ax
jne 0x520bd5
cmp edx, 0xffff
je 0x520c50
push ecx
push edx
push str.Received_ACK_for_block__d__expecting__d_n
push edi
call fcn.00510c4e
add esp, 0x10
inc dword [esi + 0x18]
mov eax, dword [esi + 0x18]
cmp eax, dword [esi + 0x20]
jle 0x520bfc
movzx eax, word [esi + 0x40]
push eax
push str.tftp_tx:_giving_up_waiting_for_block__d_ack
jmp 0x520c3d
push dword [esi + 0x148]
lea eax, [esi + 0xc8]
push eax
mov eax, dword [esi + 0x150]
push ebx
add eax, 4
push eax
push dword [esi + 0x160]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x520c49
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov ecx, dword [esi + 0x10]
mov edx, eax
call fcn.0052922c
push eax
push 0x5949b0
push edi
call fcn.00510cc2
add esp, 0xc
push 0x37
pop ebx
mov eax, ebx
jmp 0x520d38
lea eax, [esi + 0x38]
push eax
call dword [sym.imp.MSVCR120.dll__time64]
inc word [esi + 0x40]
pop ecx
jmp 0x520c65
mov word [esi + 0x40], ax
mov dword [esi + 0x18], ebx
mov eax, dword [esi + 0x160]
mov byte [eax], bl
mov eax, dword [esi + 0x160]
mov byte [eax + 1], 3
movzx edx, word [esi + 0x40]
mov eax, dword [esi + 0x160]
mov ecx, edx
shr ecx, 8
mov byte [eax + 2], cl
mov eax, dword [esi + 0x160]
mov byte [eax + 3], dl
xor eax, eax
inc eax
cmp word [esi + 0x40], ax
jbe 0x520cb0
mov eax, dword [esi + 0x150]
cmp eax, dword [esi + 0x154]
jl 0x520b8c
mov edx, dword [esi + 0x154]
lea eax, [esi + 0x150]
mov ecx, dword [esi + 0x10]
push eax
call fcn.0051165a
pop ecx
test eax, eax
jne 0x520d38
push dword [esi + 0x148]
lea eax, [esi + 0xc8]
push eax
push ebx
lea ebx, [esi + 0x150]
mov eax, dword [ebx]
add eax, 4
push eax
push dword [esi + 0x160]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x520d1b
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
mov ecx, dword [esi + 0x10]
mov edx, eax
call fcn.0052922c
push eax
push 0x5949b0
push edi
call fcn.00510cc2
add esp, 0xc
push 0x37
pop eax
jmp 0x520d38
mov eax, dword [ebx]
cdq
add dword [edi + 0x40], eax
adc dword [edi + 0x44], edx
mov eax, dword [edi + 0x40]
mov dword [edi + 0x458], eax
mov eax, dword [edi + 0x44]
mov dword [edi + 0x45c], eax
xor eax, eax
pop edi
pop esi
pop ebx
ret