Function at 0x51bb70
Capabilities:
Send data
Send data on socket

Disassembly:
push ebx
push esi
mov esi, dword [esp + 0xc]
xor ebx, ebx
push edi
mov eax, dword [esi + 0x10]
mov edi, dword [eax]
mov eax, dword [esp + 0x14]
lea ecx, [eax - 4]
cmp ecx, 3
ja case.default.0x51bb8e
jmp dword [ecx*4 + 0x51beb0]
cmp eax, 4
jne 0x51bc74
mov eax, dword [esi + 0x15c]
movzx ecx, byte [eax + 2]
movzx eax, byte [eax + 3]
shl ecx, 8
or ecx, eax
movzx eax, word [esi + 0x40]
mov edx, eax
cmp ecx, edx
je 0x51bc62
test ax, ax
jne 0x51bbd0
cmp ecx, 0xffff
je 0x51bc62
push edx
push ecx
push str.Received_ACK_for_block__d__expecting__d_n
push edi
call fcn.00504920
inc dword [esi + 0x18]
add esp, 0x10
mov eax, dword [esi + 0x18]
cmp eax, dword [esi + 0x20]
jle 0x51bc09
movzx eax, word [esi + 0x40]
push eax
push str.tftp_tx:_giving_up_waiting_for_block__d_ack
push edi
call fcn.00504840
add esp, 0xc
mov ebx, 0x37
mov eax, ebx
pop edi
pop esi
pop ebx
ret
push dword [esi + 0x148]
lea eax, [esi + 0xc8]
push eax
mov eax, dword [esi + 0x150]
push 0
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 0x51beaa
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push dword [esi + 0x10]
call fcn.00529070
push eax
push 0x5cf1cc
push edi
call fcn.00504840
add esp, 0x14
mov ebx, 0x37
mov eax, ebx
pop edi
pop esi
pop ebx
ret
lea eax, [esi + 0x38]
push eax
call fcn.004d6b88
add esp, 4
inc word [esi + 0x40]
jmp 0x51bc7d
mov eax, 1
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
cmp word [esi + 0x40], 1
jbe 0x51bcce
mov eax, dword [esi + 0x150]
cmp eax, dword [esi + 0x154]
jge 0x51bcce
pop edi
mov dword [esi], 3
xor eax, eax
pop esi
pop ebx
ret
mov eax, dword [esi + 0x10]
mov ecx, dword [esi + 0x160]
mov dword [esi + 0x150], ebx
add ecx, 4
mov eax, dword [eax]
mov dword [eax + 0x148], ecx
lea ecx, [esp + 0x10]
mov eax, dword [esi + 0x154]
sub eax, dword [esi + 0x150]
push ecx
push eax
push dword [esi + 0x10]
call fcn.00509c50
mov ebx, eax
add esp, 0xc
test ebx, ebx
jne 0x51beaa
nop
mov eax, dword [esi + 0x10]
mov ecx, dword [esp + 0x10]
add dword [esi + 0x150], ecx
mov eax, dword [eax]
add dword [eax + 0x148], ecx
mov ecx, dword [esi + 0x150]
mov eax, dword [esi + 0x154]
cmp ecx, eax
jge 0x51bd59
cmp dword [esp + 0x10], 0
je 0x51bd59
lea edx, [esp + 0x10]
sub eax, ecx
push edx
push eax
push dword [esi + 0x10]
call fcn.00509c50
mov ebx, eax
add esp, 0xc
test ebx, ebx
je 0x51bd10
pop edi
pop esi
pop ebx
ret
push dword [esi + 0x148]
lea eax, [esi + 0xc8]
push eax
push 0
lea eax, [ecx + 4]
push eax
push dword [esi + 0x160]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
test eax, eax
js 0x51be15
mov eax, dword [esi + 0x150]
cdq
add dword [edi + 0x98], eax
adc dword [edi + 0x9c], edx
push dword [edi + 0x9c]
push dword [edi + 0x98]
push edi
call fcn.00511cf0
add esp, 0xc
mov eax, ebx
pop edi
pop esi
pop ebx
ret
movzx eax, word [esi + 0x40]
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_n
push edi
call fcn.00504920
mov eax, dword [esi + 0x18]
add esp, 0x10
cmp eax, dword [esi + 0x20]
jle 0x51bde9
pop edi
mov dword [esi + 8], 0xffffff9d
mov eax, ebx
mov dword [esi], 3
pop esi
pop ebx
ret
push dword [esi + 0x148]
lea eax, [esi + 0xc8]
push eax
mov eax, dword [esi + 0x150]
push 0
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 0x51bd96
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push dword [esi + 0x10]
call fcn.00529070
push eax
push 0x5cf1cc
push edi
call fcn.00504840
add esp, 0x14
mov eax, 0x37
pop edi
pop esi
pop ebx
ret
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 0
push 4
push dword [esi + 0x160]
push dword [esi + 0x14]
call dword [sym.imp.WS2_32.dll_sendto]
pop edi
mov dword [esi], 3
mov eax, ebx
pop esi
pop ebx
ret
push eax
push str.tftp_tx:_internal_error__event:__i
push edi
call fcn.00504840
add esp, 0xc
pop edi
pop esi
mov eax, ebx
pop ebx
ret