Function at 0x4d3d00
Capabilities:
Send data
Send data on socket

Disassembly:
sub esp, 0x108
mov eax, dword [0x5bfd00]
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.0x4d3d36
jmp dword [ecx*4 + 0x4d4094]
cmp eax, 4
jne 0x4d3e50
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 0x4d3e3b
test ax, ax
jne 0x4d3d7b
cmp ecx, 0xffff
je 0x4d3e3b
push edx
push ecx
push str.Received_ACK_for_block__d__expecting__d
push edi
call fcn.004af830
inc dword [esi + 0x18]
add esp, 0x10
mov eax, dword [esi + 0x18]
cmp eax, dword [esi + 0x20]
jle 0x4d3dcb
movzx eax, word [esi + 0x144]
push eax
push str.tftp_tx:_giving_up_waiting_for_block__d_ack
push edi
call fcn.004af760
add esp, 0xc
mov ebx, 0x37
mov eax, ebx
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x104]
xor ecx, esp
call fcn.00563360
add esp, 0x108
ret
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 0x4d3e21
push 0x100
lea eax, [esp + 0x14]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004b66c0
push eax
push 0x57c0ec
push edi
call fcn.004af760
add esp, 0x18
mov ebx, 0x37
pop edi
pop esi
mov eax, ebx
pop ebx
mov ecx, dword [esp + 0x104]
xor ecx, esp
call fcn.00563360
add esp, 0x108
ret
lea eax, [esi + 0x28]
push eax
call sub.api_ms_win_crt_time_l1_1_0.dll__time64
add esp, 4
inc word [esi + 0x144]
jmp 0x4d3e5c
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 0x4d3eab
mov eax, dword [esi + 0x138]
cmp eax, dword [esi + 0x13c]
jl 0x4d4061
mov ecx, dword [esi + 0x14c]
mov eax, dword [esi + 0x10]
add ecx, 4
mov dword [esi + 0x138], ebx
mov dword [eax + 0x120], ecx
lea eax, [esp + 0xc]
push eax
mov eax, dword [esi + 0x13c]
sub eax, dword [esi + 0x138]
push eax
push edi
call fcn.004b72d0
add esp, 0xc
test eax, eax
jne 0x4d407a
mov eax, dword [esi + 0x10]
mov ecx, dword [esp + 0xc]
add dword [esi + 0x138], ecx
add dword [eax + 0x120], ecx
mov ecx, dword [esi + 0x138]
cmp ecx, dword [esi + 0x13c]
jge 0x4d3f0d
cmp dword [esp + 0xc], ebx
jne 0x4d3ec3
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 0x4d3fc9
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.004c32b0
jmp 0x4d4075
mov eax, dword [esi + 0x18]
inc eax
push eax
mov dword [esi + 0x18], eax
movzx eax, word [esi + 0x144]
inc eax
movzx eax, ax
push eax
push str.Timeout_waiting_for_block__d_ACK.__Retries___d
push edi
call fcn.004af830
mov eax, dword [esi + 0x18]
add esp, 0x10
cmp eax, dword [esi + 0x20]
jle 0x4d3f9d
mov dword [esi + 8], 0xffffff9d
mov dword [esi], 3
jmp 0x4d4078
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 0x4d3f4a
push 0x100
lea eax, [esp + 0x14]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.004b66c0
push eax
push 0x57c0ec
push edi
call fcn.004af760
add esp, 0x18
mov eax, 0x37
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x104]
xor ecx, esp
call fcn.00563360
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 0x4d4078
push eax
push str.tftp_tx:_internal_error__event:__i
push edi
call fcn.004af760
add esp, 0xc
xor eax, eax
mov ecx, dword [esp + 0x110]
pop edi
pop esi
pop ebx
xor ecx, esp
call fcn.00563360
add esp, 0x108
ret