Function at 0x1403d6660
Capabilities:
Send data
Send data on socket

Disassembly:
mov qword [rsp + 0x18], rbx
push rbp
push rsi
push rdi
sub rsp, 0x150
mov rax, qword [0x140628fc0]
xor rax, rsp
mov qword [rsp + 0x140], rax
mov rsi, qword [rcx + 0x10]
mov rbx, rcx
mov ecx, edx
xor edi, edi
sub ecx, 4
je 0x1403d67e8
sub ecx, 1
je 0x1403d6772
sub ecx, 1
je 0x1403d67e8
cmp ecx, 1
mov rcx, rsi
je 0x1403d66c3
mov r8d, edx
lea rdx, str.tftp_tx:_internal_error__event:__i
call fcn.1403b8d60
jmp 0x1403d6a34
mov r9d, dword [rbx + 0x20]
lea rdx, str.Timeout_waiting_for_block__d_ACK.__Retries___d
movzx eax, word [rbx + 0x14c]
inc r9d
inc eax
mov dword [rbx + 0x20], r9d
movzx r8d, ax
call fcn.1403b8e50
mov eax, dword [rbx + 0x28]
cmp dword [rbx + 0x20], eax
jle 0x1403d6701
mov dword [rbx + 8], 0xffffff9d
mov dword [rbx], 3
jmp 0x1403d6a34
mov eax, dword [rbx + 0x138]
lea rdx, [rbx + 0xb8]
mov r8d, dword [rbx + 0x140]
xor r9d, r9d
mov rcx, qword [rbx + 0x18]
add r8d, 4
mov dword [rsp + 0x28], eax
mov qword [rsp + 0x20], rdx
mov rdx, qword [rbx + 0x158]
call qword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x1403d6a25
call qword [sym.imp.WS2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rsp + 0x40]
mov ecx, eax
call fcn.1403a12b0
mov r8, rax
lea rdx, [0x1405c8ff8]
mov rcx, rsi
call fcn.1403b8d60
mov eax, reloc.WS2_32.dll_getservbyname
jmp 0x1403d6a36
mov dword [rbx], 3
xor r9d, r9d
mov rax, qword [rbx + 0x158]
lea r8d, [r9 + 4]
mov byte [rax], dil
mov rax, qword [rbx + 0x158]
mov byte [rax + 1], 5
movzx edx, word [rbx + 0x14c]
mov rax, qword [rbx + 0x158]
movzx ecx, dx
shr cx, 8
mov byte [rax + 2], cl
lea rcx, [rbx + 0xb8]
mov rax, qword [rbx + 0x158]
mov byte [rax + 3], dl
mov eax, dword [rbx + 0x138]
mov rdx, qword [rbx + 0x158]
mov dword [rsp + 0x28], eax
mov qword [rsp + 0x20], rcx
mov rcx, qword [rbx + 0x18]
call qword [sym.imp.WS2_32.dll_sendto]
mov dword [rbx], 3
jmp 0x1403d6a34
cmp edx, 4
jne 0x1403d68ea
mov rax, qword [rbx + 0x150]
movzx r9d, word [rbx + 0x14c]
movzx r8d, byte [rax + 2]
movzx eax, byte [rax + 3]
shl r8d, 8
or r8d, eax
cmp r8d, r9d
je 0x1403d68d8
test r9w, r9w
jne 0x1403d682c
cmp r8d, 0xffff
je 0x1403d68d8
lea rdx, str.Received_ACK_for_block__d__expecting__d
mov rcx, rsi
call fcn.1403b8e50
inc dword [rbx + 0x20]
mov eax, dword [rbx + 0x20]
cmp eax, dword [rbx + 0x28]
jle 0x1403d6867
movzx r8d, word [rbx + 0x14c]
lea rdx, str.tftp_tx:_giving_up_waiting_for_block__d_ack
mov rcx, rsi
call fcn.1403b8d60
mov edi, reloc.WS2_32.dll_getservbyname
jmp 0x1403d6a34
mov eax, dword [rbx + 0x138]
lea rcx, [rbx + 0xb8]
mov r8d, dword [rbx + 0x140]
xor r9d, r9d
mov rdx, qword [rbx + 0x158]
add r8d, 4
mov dword [rsp + 0x28], eax
mov qword [rsp + 0x20], rcx
mov rcx, qword [rbx + 0x18]
call qword [sym.imp.WS2_32.dll_sendto]
test eax, eax
jns 0x1403d6a34
call qword [sym.imp.WS2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rsp + 0x40]
mov ecx, eax
call fcn.1403a12b0
mov r8, rax
lea rdx, [0x1405c8ff8]
mov rcx, rsi
call fcn.1403b8d60
mov edi, reloc.WS2_32.dll_getservbyname
jmp 0x1403d6a34
lea rcx, [rbx + 0x30]
call fcn.1404babb0
inc word [rbx + 0x14c]
jmp 0x1403d68f3
mov word [rbx + 0x14c], 1
mov dword [rbx + 0x20], edi
mov rax, qword [rbx + 0x158]
mov byte [rax], dil
mov rax, qword [rbx + 0x158]
mov byte [rax + 1], 3
movzx edx, word [rbx + 0x14c]
mov rax, qword [rbx + 0x158]
movzx ecx, dx
shr cx, 8
mov byte [rax + 2], cl
mov rax, qword [rbx + 0x158]
mov byte [rax + 3], dl
cmp word [rbx + 0x14c], 1
jbe 0x1403d6952
mov eax, dword [rbx + 0x144]
cmp dword [rbx + 0x140], eax
jge 0x1403d6952
mov dword [rbx], 3
xor eax, eax
jmp 0x1403d6a36
mov rbp, qword [rbx + 0x158]
lea rax, [rsp + 0x30]
movsxd r8, dword [rbx + 0x144]
lea r9, [rsp + 0x38]
add rbp, 4
mov dword [rbx + 0x140], edi
mov rdx, rbp
mov qword [rsp + 0x20], rax
mov rcx, rsi
call fcn.1403b9cc0
mov edi, eax
test eax, eax
jne 0x1403d6a34
nop
mov r8d, dword [rbx + 0x140]
mov rcx, qword [rsp + 0x38]
mov eax, dword [rbx + 0x144]
add r8d, ecx
add rbp, rcx
mov dword [rbx + 0x140], r8d
cmp r8d, eax
jge 0x1403d69e1
test rcx, rcx
je 0x1403d69e1
sub eax, r8d
lea r9, [rsp + 0x38]
movsxd r8, eax
mov rdx, rbp
lea rax, [rsp + 0x30]
mov rcx, rsi
mov qword [rsp + 0x20], rax
call fcn.1403b9cc0
mov edi, eax
test eax, eax
je 0x1403d6990
jmp 0x1403d6a34
mov eax, dword [rbx + 0x138]
lea rcx, [rbx + 0xb8]
mov rdx, qword [rbx + 0x158]
add r8d, 4
mov dword [rsp + 0x28], eax
xor r9d, r9d
mov qword [rsp + 0x20], rcx
mov rcx, qword [rbx + 0x18]
call qword [sym.imp.WS2_32.dll_sendto]
test eax, eax
js 0x1403d673e
movsxd rax, dword [rbx + 0x140]
add qword [rsi + 0x108], rax
mov rdx, qword [rsi + 0x108]
mov rcx, rsi
call fcn.1403cbad0
mov eax, edi
mov rcx, qword [rsp + 0x140]
xor rcx, rsp
call fcn.1404a0a30
mov rbx, qword [rsp + 0x180]
add rsp, 0x150
pop rdi
pop rsi
pop rbp
ret