Function at 0x491b80
Capabilities:
Send data
Send data on socket

Disassembly:
sub esp, 0x14c
mov eax, dword [0x661540]
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 + 0xd6e], bl
cmovne edi, eax
mov eax, dword [esp + 0x164]
cmp eax, 7
ja case.0x4914b7.1
jmp dword [eax*4 + 0x4918f0]
inc dword [esi + 0x18]
mov eax, dword [esi + 0x18]
cmp eax, dword [esi + 0x20]
jle 0x4914dd
mov dword [esi + 8], 0xffffff9e
xor eax, eax
mov dword [esi], 3
jmp 0x4918d6
mov eax, dword [esi + 0x14c]
cmp byte [ebp + 0xd74], bl
mov byte [eax], bl
mov eax, dword [esi + 0x14c]
je 0x49152b
mov byte [eax + 1], 2
mov eax, dword [esi + 0x10]
mov ecx, dword [esi + 0x14c]
add ecx, 4
mov dword [eax + 0x128], ecx
mov edx, dword [ebp + 0xc88]
mov eax, edx
mov ecx, dword [ebp + 0xc8c]
and eax, ecx
cmp eax, 0xffffffff
je 0x49152f
push ecx
push edx
push ebp
call fcn.00408b7a
add esp, 0xc
jmp 0x49152f
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 + 0xcb4]
inc eax
push eax
call fcn.00406802
mov ebx, eax
add esp, 0x14
test ebx, ebx
jne 0x4918d4
mov ecx, dword [esp + 0x10]
lea edx, [ecx + 1]
nop
mov al, byte [ecx]
inc ecx
test al, al
jne 0x491560
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 0x491572
sub edx, dword [esp + 0x14]
mov eax, dword [esi + 0x13c]
sub eax, edx
sub eax, 4
cmp ecx, eax
jbe 0x4915ae
push str.TFTP_file_name_too_long
push ebp
call fcn.00407be9
push dword [esp + 0x18]
call dword [0x661010]
add esp, 0xc
mov eax, 0x47
jmp 0x4918d6
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.0040697e
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 0x4915e0
sub ecx, edx
lea edx, [edi + 1]
nop dword [eax]
mov al, byte [edi]
inc edi
test al, al
jne 0x4915f0
sub edi, edx
add edi, 4
add edi, ecx
cmp byte [ebp + 0x6c0], al
jne 0x49183e
cmp byte [ebp + 0xd74], al
je 0x49163f
mov edx, dword [ebp + 0xc88]
mov eax, edx
mov ecx, dword [ebp + 0xc8c]
and eax, ecx
cmp eax, 0xffffffff
je 0x49163f
push ecx
push edx
push str._I64d
lea eax, [esp + 0x24]
push 0x40
push eax
call fcn.0040697e
add esp, 0x14
jmp 0x491649
mov eax, 0x30
mov word [esp + 0x18], ax
lea ebx, [edi + 6]
cmp ebx, dword [esi + 0x13c]
ja 0x49168c
mov ecx, dword [esi + 0x14c]
mov edx, str.tsize
add ecx, edi
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x491661
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x491676
sub ecx, edx
lea eax, [ecx + 1]
add eax, ebx
cmp eax, dword [esi + 0x13c]
jbe 0x4916c4
push dword [esi + 0x140]
lea eax, [esp + 0x1c]
push 0x616f60
push 0x40
push eax
call fcn.0040697e
push dword [esi + 0x1c]
lea eax, [esp + 0x2c]
push 0x616f60
push 0x40
push eax
call fcn.0040697e
add esp, 0x20
push str.TFTP_buffer_too_small_for_options
jmp 0x491591
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 0x4916d0
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x4916e5
push dword [esi + 0x140]
sub ecx, edx
lea eax, [esp + 0x1c]
push 0x616f60
push 0x40
push eax
lea edi, [ecx + 1]
add edi, ebx
call fcn.0040697e
lea ebx, [edi + 8]
add esp, 0x10
cmp ebx, dword [esi + 0x13c]
ja 0x491756
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 0x491725
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
nop word [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x491740
sub ecx, edx
lea eax, [ecx + 1]
add eax, ebx
cmp eax, dword [esi + 0x13c]
jbe 0x491777
push dword [esi + 0x1c]
lea eax, [esp + 0x1c]
push 0x616f60
push 0x40
push eax
call fcn.0040697e
add esp, 0x10
push str.TFTP_buffer_too_small_for_options
jmp 0x491591
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 0x491783
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x491798
push dword [esi + 0x1c]
sub ecx, edx
lea eax, [esp + 0x1c]
push 0x616f60
inc ecx
push 0x40
push eax
add ebx, ecx
call fcn.0040697e
lea edi, [ebx + 8]
add esp, 0x10
cmp edi, dword [esi + 0x13c]
ja 0x4916ba
mov ecx, dword [esi + 0x14c]
mov edx, str.timeout
add ecx, ebx
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x4917d7
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x4917f0
sub ecx, edx
lea eax, [edi + 1]
add eax, ecx
cmp eax, dword [esi + 0x13c]
ja 0x4916ba
mov ecx, dword [esi + 0x14c]
lea edx, [esp + 0x18]
add ecx, edi
mov al, byte [edx]
lea edx, [edx + 1]
mov byte [ecx], al
lea ecx, [ecx + 1]
test al, al
jne 0x491816
lea ecx, [esp + 0x18]
lea edx, [ecx + 1]
nop dword [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x491830
sub ecx, edx
inc edi
add edi, ecx
xor ebx, ebx
mov eax, dword [ebp + 0x18]
mov eax, dword [eax + 0x44]
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 0x491886
push 0x100
lea eax, [esp + 0x5c]
push eax
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
call fcn.00403d5f
push eax
push 0x61253c
push ebp
call fcn.00407be9
add esp, 0x18
push dword [esp + 0x10]
call dword [0x661010]
add esp, 4
jmp 0x4918d4
push eax
push esi
cmp byte [ebp + 0xd74], bl
je 0x4918b5
call fcn.00490900
mov ebx, eax
jmp 0x4918d1
push eax
push esi
call fcn.00490900
mov ebx, eax
jmp 0x4918d1
push eax
push esi
call fcn.004908b0
mov ebx, eax
jmp 0x4918d1
mov dword [esi], 3
jmp 0x4918d4
push str.tftp_send_first:_internal_error
push ebp
call fcn.00407be9
add esp, 8
mov eax, ebx
mov ecx, dword [esp + 0x158]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.00403eb3
add esp, 0x14c
ret
mov eax, dword [esp + 4]
mov edx, dword [eax]
mov ecx, dword [eax + 0x10]
cmp edx, 3
ja case.default.0x491b8e
jmp dword [edx*4 + 0x491be0]
mov dword [esp + 4], eax
jmp 0x491470
mov dword [esp + 4], eax
jmp fcn.00491040
mov dword [esp + 4], eax
jmp fcn.00491e40
push str.TFTP_finished
push 0x61253c
push ecx
call fcn.0040365c
add esp, 0xc
xor eax, eax
ret
push str.Internal_state_machine_error
push 0x61253c
push ecx
call fcn.00407be9
add esp, 0xc
mov eax, 0x47
ret