Function at 0x1800bcb30
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.0x1800bc4ec.1
lea r8, [0x180000000]
movsxd rax, edx
mov ecx, dword [r8 + rax*4 + 0xbca10]
add rcx, r8
jmp rcx
inc dword [rbx + 0x20]
mov eax, dword [rbx + 0x20]
cmp eax, dword [rbx + 0x28]
jle 0x1800bc50d
mov dword [rbx + 8], 0xffffff9e
xor eax, eax
mov dword [rbx], 3
jmp 0x1800bc9e7
mov rax, qword [rbx + 0x158]
cmp byte [r15 + 0xb35], sil
mov byte [rax], sil
mov rax, qword [rbx + 0x158]
je 0x1800bc558
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 0x1800bc55c
mov rcx, r15
call fcn.1800a1080
jmp 0x1800bc55c
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.1800c0d80
mov esi, eax
test eax, eax
jne 0x1800bc9e7
movsxd rdx, dword [rbx + 0x144]
mov rdi, 0xffffffffffffffff
mov rax, rdi
inc rax
cmp byte [r14 + rax], 0
jne 0x1800bc5a2
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 0x1800bc5c0
cmp rax, rcx
jbe 0x1800bc5f3
lea rdx, str.TFTP_file_name_too_long
mov rcx, r15
call fcn.180091030
mov rcx, qword [rsp + 0x40]
call qword [fcn.1800d2a6c]
mov eax, 0x47
jmp 0x1800bc9e7
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.1800a3990
mov rcx, rdi
inc rcx
cmp byte [r14 + rcx], 0
jne 0x1800bc624
mov rdx, qword [rsp + 0x40]
mov rax, rdi
nop word [rax + rax]
cmp byte [rdx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bc640
lea r14, [rax + 4]
add r14, rcx
cmp byte [r15 + 0xb1b], 0
jne 0x1800bc934
cmp byte [r15 + 0xb35], 0
je 0x1800bc68e
mov r9, qword [r15 + 0x11a8]
cmp r9, rdi
je 0x1800bc68e
lea r8, str._I64d
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.1800a3990
jmp 0x1800bc698
mov eax, Ordinal_50
mov word [rsp + 0x50], ax
movsxd rax, dword [rbx + 0x144]
lea r8, [r14 + 6]
cmp r8, rax
jbe 0x1800bc6af
lea rcx, [rsp + 0x50]
jmp 0x1800bc703
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 0x1800bc6c0
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bc6e0
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
lea rcx, [rsp + 0x50]
jbe 0x1800bc741
mov r9d, dword [rbx + 0x148]
lea r8, [0x1800e9cc4]
mov edx, 0x40
call fcn.1800a3990
mov r9d, dword [rbx + 0x24]
lea r8, [0x1800e9cc4]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.1800a3990
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x1800bc5d6
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 0x1800bc750
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bc770
mov r9d, dword [rbx + 0x148]
lea rsi, [rax + 1]
add rsi, r8
lea rcx, [rsp + 0x50]
lea r8, [0x1800e9cc4]
mov edx, 0x40
call fcn.1800a3990
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x1800bc71b
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 0x1800bc7d0
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bc7f0
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
lea rcx, [rsp + 0x50]
jbe 0x1800bc834
mov r9d, dword [rbx + 0x24]
lea r8, [0x1800e9cc4]
mov edx, 0x40
call fcn.1800a3990
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x1800bc5d6
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 0x1800bc840
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bc860
mov r9d, dword [rbx + 0x24]
lea rsi, [rax + 1]
add rsi, r8
lea rcx, [rsp + 0x50]
lea r8, [0x1800e9cc4]
mov edx, 0x40
call fcn.1800a3990
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x1800bc735
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 0x1800bc8b1
lea rcx, [rsp + 0x50]
mov rax, rdi
nop word [rax + rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x1800bc8d0
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
ja 0x1800bc735
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 0x1800bc901
lea rax, [rsp + 0x50]
nop word [rax + rax]
cmp byte [rax + rdi + 1], 0
lea rdi, [rdi + 1]
jne 0x1800bc920
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 0x1800bc994
call qword [sym.imp.WS2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rbp - 0x70]
mov ecx, eax
call fcn.1800a55b0
mov r8, rax
lea rdx, [0x1800e9cc8]
mov rcx, r15
call fcn.180091030
mov rcx, qword [rsp + 0x40]
call qword [fcn.1800d2a6c]
jmp 0x1800bc9e5
mov rcx, rbx
cmp byte [r15 + 0xb35], sil
je 0x1800bc9c5
call fcn.1800bbbb0
mov esi, eax
jmp 0x1800bc9e5
mov rcx, rbx
call fcn.1800bbbb0
mov esi, eax
jmp 0x1800bc9e5
mov rcx, rbx
call fcn.1800bbb60
mov esi, eax
jmp 0x1800bc9e5
mov dword [rbx], 3
jmp 0x1800bc9e5
lea rdx, str.tftp_send_first:_internal_error
mov rcx, r15
call fcn.180091030
mov eax, esi
mov rcx, qword [rbp + 0x90]
xor rcx, rsp
call fcn.1800d12f0
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 0x1800bcb97
sub r8d, 1
je 0x1800bcb8e
sub r8d, 1
je 0x1800bcb85
lea rdx, [0x1800e9cc8]
mov rcx, r9
cmp r8d, 1
je 0x1800bcb72
lea r8, str.Internal_state_machine_error
call fcn.180091030
mov eax, 0x47
add rsp, 0x28
ret
lea r8, str.TFTP_finished
call fcn.1800911a0
xor eax, eax
add rsp, 0x28
ret
add rsp, 0x28
jmp fcn.1800bcce0
add rsp, 0x28
jmp fcn.1800bc140
add rsp, 0x28
jmp 0x1800bc480