Function at 0x1800bbfa0
Capabilities:
Send data
Send data on socket

Disassembly:
mov qword [rsp + 0x18], rbx
push rbp
push rsi
push rdi
push r14
push r15
lea rbp, [rsp - 0xa0]
sub rsp, 0x1a0
mov rax, qword [0x180109070]
xor rax, rsp
mov qword [rbp + 0x90], rax
mov r15, qword [rcx + 0x10]
lea rax, str.octet
xor esi, esi
lea r14, str.netascii
mov rbx, rcx
cmp byte [r15 + 0x12f8], sil
cmove r14, rax
cmp edx, 7
ja case.0x1800bb95c.1
lea r8, [0x180000000]
movsxd rax, edx
mov ecx, dword [r8 + rax*4 + 0xbbe80]
add rcx, r8
jmp rcx
inc dword [rbx + 0x20]
mov eax, dword [rbx + 0x20]
cmp eax, dword [rbx + 0x28]
jle 0x1800bb97d
mov dword [rbx + 8], 0xffffff9e
xor eax, eax
mov dword [rbx], 3
jmp 0x1800bbe57
mov rax, qword [rbx + 0x158]
cmp byte [r15 + 0xb35], sil
mov byte [rax], sil
mov rax, qword [rbx + 0x158]
je 0x1800bb9c8
mov byte [rax + 1], 2
mov rcx, qword [rbx + 0x158]
mov rax, qword [rbx + 0x10]
add rcx, 4
mov qword [rax + 0x1a8], rcx
mov rdx, qword [r15 + 0x11a8]
cmp rdx, 0xffffffffffffffff
je 0x1800bb9cc
mov rcx, r15
call fcn.1800a04f0
jmp 0x1800bb9cc
mov byte [rax + 1], 1
mov rax, qword [rbx + 0x10]
lea r9, [rsp + 0x40]
mov dword [rsp + 0x28], 4
xor r8d, r8d
mov rcx, r15
mov qword [rsp + 0x20], rsi
mov rdx, qword [rax + 0x1210]
inc rdx
call fcn.1800c01f0
mov esi, eax
test eax, eax
jne 0x1800bbe57
movsxd rdx, dword [rbx + 0x144]
mov rdi, 0xffffffffffffffff
mov rax, rdi
inc rax
cmp byte [r14 + rax], 0
jne 0x1800bba12
mov r9, qword [rsp + 0x40]
mov rcx, rdx
sub rcx, rax
mov rax, rdi
sub rcx, 4
nop
inc rax
cmp byte [r9 + rax], 0
jne 0x1800bba30
cmp rax, rcx
jbe 0x1800bba63
lea rdx, str.TFTP_file_name_too_long
mov rcx, r15
call fcn.1800904a0
mov rcx, qword [rsp + 0x40]
call qword [fcn.1800d1edc]
mov eax, 0x47
jmp 0x1800bbe57
mov rcx, qword [rbx + 0x158]
lea r8, str._s_c_s_c
mov qword [rsp + 0x30], 0
add rcx, 2
mov qword [rsp + 0x28], r14
mov qword [rsp + 0x20], 0
call fcn.1800a2e00
mov rcx, rdi
inc rcx
cmp byte [r14 + rcx], 0
jne 0x1800bba94
mov rdx, qword [rsp + 0x40]
mov rax, rdi
nop word [rax + rax]
cmp byte [rdx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bbab0
lea r14, [rax + 4]
add r14, rcx
cmp byte [r15 + 0xb1b], 0
jne 0x1800bbda4
cmp byte [r15 + 0xb35], 0
je 0x1800bbafe
mov r9, qword [r15 + 0x11a8]
cmp r9, rdi
je 0x1800bbafe
lea r8, str._I64d
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.1800a2e00
jmp 0x1800bbb08
mov eax, Ordinal_50
mov word [rsp + 0x50], ax
movsxd rax, dword [rbx + 0x144]
lea r8, [r14 + 6]
cmp r8, rax
jbe 0x1800bbb1f
lea rcx, [rsp + 0x50]
jmp 0x1800bbb73
mov rdx, qword [rbx + 0x158]
lea rcx, str.tsize
add rdx, r14
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x1800bbb30
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bbb50
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
lea rcx, [rsp + 0x50]
jbe 0x1800bbbb1
mov r9d, dword [rbx + 0x148]
lea r8, [0x1800e9ce4]
mov edx, 0x40
call fcn.1800a2e00
mov r9d, dword [rbx + 0x24]
lea r8, [0x1800e9ce4]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.1800a2e00
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x1800bba46
mov rdx, qword [rbx + 0x158]
add rdx, r8
nop dword [rax + rax]
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x1800bbbc0
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bbbe0
mov r9d, dword [rbx + 0x148]
lea rsi, [rax + 1]
add rsi, r8
lea rcx, [rsp + 0x50]
lea r8, [0x1800e9ce4]
mov edx, 0x40
call fcn.1800a2e00
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x1800bbb8b
mov rdx, qword [rbx + 0x158]
lea rcx, str.blksize
add rdx, rsi
nop dword [rax]
nop dword [rax + rax]
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x1800bbc40
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bbc60
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
lea rcx, [rsp + 0x50]
jbe 0x1800bbca4
mov r9d, dword [rbx + 0x24]
lea r8, [0x1800e9ce4]
mov edx, 0x40
call fcn.1800a2e00
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x1800bba46
mov rdx, qword [rbx + 0x158]
add rdx, r8
nop
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x1800bbcb0
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bbcd0
mov r9d, dword [rbx + 0x24]
lea rsi, [rax + 1]
add rsi, r8
lea rcx, [rsp + 0x50]
lea r8, [0x1800e9ce4]
mov edx, 0x40
call fcn.1800a2e00
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x1800bbba5
mov rdx, qword [rbx + 0x158]
lea rcx, str.timeout
add rdx, rsi
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x1800bbd21
lea rcx, [rsp + 0x50]
mov rax, rdi
nop word [rax + rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bbd40
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
ja 0x1800bbba5
mov rdx, qword [rbx + 0x158]
lea rcx, [rsp + 0x50]
add rdx, r8
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x1800bbd71
lea rax, [rsp + 0x50]
nop word [rax + rax]
cmp byte [rax + rdi + 1], 0
lea rdi, [rdi + 1]
jne 0x1800bbd90
lea r14, [rdi + 1]
add r14, r8
xor esi, esi
mov rax, qword [r15 + 0x18]
xor r9d, r9d
mov rcx, qword [rbx + 0x18]
mov r8d, r14d
mov rdx, qword [rax + 0x70]
mov eax, dword [rdx + 0x10]
mov dword [rsp + 0x28], eax
mov rax, qword [rdx + 0x20]
mov rdx, qword [rbx + 0x158]
mov qword [rsp + 0x20], rax
call qword [sym.imp.WS2_32.dll_sendto]
movsxd rcx, eax
cmp rcx, r14
je 0x1800bbe04
call qword [sym.imp.WS2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rbp - 0x70]
mov ecx, eax
call fcn.1800a4a20
mov r8, rax
lea rdx, [0x1800e9ce8]
mov rcx, r15
call fcn.1800904a0
mov rcx, qword [rsp + 0x40]
call qword [fcn.1800d1edc]
jmp 0x1800bbe55
mov rcx, rbx
cmp byte [r15 + 0xb35], sil
je 0x1800bbe35
call fcn.1800bb020
mov esi, eax
jmp 0x1800bbe55
mov rcx, rbx
call fcn.1800bb020
mov esi, eax
jmp 0x1800bbe55
mov rcx, rbx
call fcn.1800bafd0
mov esi, eax
jmp 0x1800bbe55
mov dword [rbx], 3
jmp 0x1800bbe55
lea rdx, str.tftp_send_first:_internal_error
mov rcx, r15
call fcn.1800904a0
mov eax, esi
mov rcx, qword [rbp + 0x90]
xor rcx, rsp
call fcn.1800d0760
mov rbx, qword [rsp + 0x1e0]
add rsp, 0x1a0
pop r15
pop r14
pop rdi
pop rsi
pop rbp
ret
sub rsp, 0x28
mov r8d, dword [rcx]
mov r9, qword [rcx + 0x10]
test r8d, r8d
je 0x1800bc007
sub r8d, 1
je 0x1800bbffe
sub r8d, 1
je 0x1800bbff5
lea rdx, [0x1800e9ce8]
mov rcx, r9
cmp r8d, 1
je 0x1800bbfe2
lea r8, str.Internal_state_machine_error
call fcn.1800904a0
mov eax, 0x47
add rsp, 0x28
ret
lea r8, str.TFTP_finished
call fcn.180090610
xor eax, eax
add rsp, 0x28
ret
add rsp, 0x28
jmp fcn.1800bc150
add rsp, 0x28
jmp fcn.1800bb5b0
add rsp, 0x28
jmp 0x1800bb8f0