Function at 0x180121ff0
Capabilities:
Send data
Send data on socket

Disassembly:
mov qword [rsp + 0x18], rbx
mov qword [rsp + 0x20], rbp
push rsi
push rdi
push r14
sub rsp, 0x1a0
mov rax, qword [0x1802ebe40]
xor rax, rsp
mov qword [rsp + 0x190], rax
mov r14, qword [rcx + 0x10]
lea rax, str.octet
xor edi, edi
lea rsi, str.netascii
mov rbx, rcx
cmp byte [r14 + 0x1328], dil
cmove rsi, rax
cmp edx, 7
ja case.0x180122057.1
lea r8, [0x180000000]
movsxd rax, edx
mov ecx, dword [r8 + rax*4 + 0x122578]
add rcx, r8
jmp rcx
inc dword [rbx + 0x20]
mov eax, dword [rbx + 0x20]
cmp eax, dword [rbx + 0x28]
jle 0x180122078
mov dword [rbx + 8], 0xffffff9e
xor eax, eax
mov dword [rbx], 3
jmp 0x18012254e
mov rax, qword [rbx + 0x158]
cmp byte [r14 + 0x132d], dil
mov byte [rax], dil
mov rax, qword [rbx + 0x158]
je 0x1801220ad
mov byte [rax + 1], 2
mov rdx, qword [r14 + 0x1158]
cmp rdx, 0xffffffffffffffff
je 0x1801220b1
mov rcx, r14
call fcn.180112f10
jmp 0x1801220b1
mov byte [rax + 1], 1
mov rax, qword [rbx + 0x10]
lea r8, [rsp + 0x40]
xor r9d, r9d
mov dword [rsp + 0x20], 4
xor edx, edx
mov rcx, qword [rax + 0x11a8]
inc rcx
call fcn.180108700
mov edi, eax
test eax, eax
jne 0x18012254e
movsxd rdx, dword [rbx + 0x144]
mov rbp, 0xffffffffffffffff
mov rax, rbp
inc rax
cmp byte [rsi + rax], 0
jne 0x1801220f1
mov r9, qword [rsp + 0x40]
mov rcx, rdx
sub rcx, rax
mov rax, rbp
sub rcx, 4
nop dword [rax]
inc rax
cmp byte [r9 + rax], 0
jne 0x180122110
cmp rax, rcx
jbe 0x180122143
lea rdx, str.TFTP_filename_too_long
mov rcx, r14
call fcn.1800fe3f0
mov rcx, qword [rsp + 0x40]
call qword [fcn.18015e53a]
mov eax, 0x47
jmp 0x18012254e
mov rcx, qword [rbx + 0x158]
lea r8, str._s_c_s_c
mov qword [rsp + 0x30], 0
add rcx, 2
mov qword [rsp + 0x28], rsi
mov qword [rsp + 0x20], 0
call fcn.180116d90
mov rcx, rbp
inc rcx
cmp byte [rsi + rcx], 0
jne 0x180122174
mov rdx, qword [rsp + 0x40]
mov rax, rbp
cmp byte [rdx + rax + 1], 0
lea rax, [rax + 1]
jne 0x180122185
lea rsi, [rax + 4]
add rsi, rcx
cmp byte [r14 + 0xa54], 0
jne 0x180122497
cmp byte [r14 + 0x132d], 0
je 0x1801221d3
mov r9, qword [r14 + 0x1158]
cmp r9, rbp
je 0x1801221d3
lea r8, str._lld
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.180116d90
jmp 0x1801221dd
mov eax, 0x30
mov word [rsp + 0x50], ax
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 6]
cmp r8, rax
jbe 0x180122230
mov r9d, dword [rbx + 0x148]
lea r8, [0x180168a28]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.180116d90
mov r9d, dword [rbx + 0x24]
lea r8, [0x180168a28]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.180116d90
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x180122126
mov rdx, qword [rbx + 0x158]
lea rcx, str.tsize
add rdx, rsi
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x180122241
mov rsi, r8
lea rcx, [rsp + 0x50]
mov rax, rbp
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x180122260
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, rsi
cmp rcx, rax
jbe 0x180122285
mov edi, 0x47
jmp 0x1801222d1
mov rdx, qword [rbx + 0x158]
lea rcx, [rsp + 0x50]
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 0x1801222a0
lea rcx, [rsp + 0x50]
mov rax, rbp
nop dword [rax]
inc rax
cmp byte [rcx + rax], 0
jne 0x1801222c0
inc rsi
add rsi, rax
xor edi, edi
mov r9d, dword [rbx + 0x148]
lea r8, [0x180168a28]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.180116d90
test edi, edi
jne 0x1801223b1
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
jbe 0x18012230d
mov edi, 0x47
jmp 0x180122336
mov rdx, qword [rbx + 0x158]
lea rcx, str.blksize
add rdx, rsi
nop
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x180122320
mov rsi, r8
xor edi, edi
test edi, edi
jne 0x1801223b1
lea rcx, [rsp + 0x50]
mov rax, rbp
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x180122342
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, rsi
cmp rcx, rax
jbe 0x180122367
mov edi, 0x47
jmp 0x1801223b1
mov rdx, qword [rbx + 0x158]
lea rcx, [rsp + 0x50]
add rdx, rsi
nop word [rax + rax]
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x180122380
lea rcx, [rsp + 0x50]
mov rax, rbp
nop dword [rax]
inc rax
cmp byte [rcx + rax], 0
jne 0x1801223a0
inc rsi
add rsi, rax
xor edi, edi
mov r9d, dword [rbx + 0x24]
lea r8, [0x180168a28]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.180116d90
test edi, edi
jne 0x18012248b
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x18012248b
mov rdx, qword [rbx + 0x158]
lea rcx, str.timeout
add rdx, rsi
nop dword [rax + rax]
movzx eax, byte [rcx]
lea rcx, [rcx + 1]
mov byte [rdx], al
lea rdx, [rdx + 1]
test al, al
jne 0x180122400
mov rsi, r8
lea rcx, [rsp + 0x50]
mov rax, rbp
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x180122420
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, rsi
cmp rcx, rax
jbe 0x180122445
mov edi, 0x47
jmp 0x180122487
mov rdx, qword [rbx + 0x158]
lea rcx, [rsp + 0x50]
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 0x180122460
lea rax, [rsp + 0x50]
inc rbp
cmp byte [rax + rbp], 0
jne 0x180122476
inc rsi
add rsi, rbp
xor edi, edi
test edi, edi
je 0x180122497
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x180122126
mov rax, qword [r14 + 0x18]
xor r9d, r9d
mov rcx, qword [rbx + 0x18]
mov r8d, esi
mov rax, qword [rax + 0x50]
lea rdx, [rax + 0x10]
mov eax, dword [rax + 0xc]
mov dword [rsp + 0x28], eax
mov qword [rsp + 0x20], rdx
mov rdx, qword [rbx + 0x158]
call qword [sym.imp.WS2_32.dll_sendto]
movsxd rcx, eax
cmp rcx, rsi
je 0x1801224fb
call qword [sym.imp.WS2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rsp + 0x90]
mov ecx, eax
call fcn.1801151d0
mov r8, rax
lea rdx, [0x180168a2c]
mov rcx, r14
call fcn.1800fe3f0
mov rcx, qword [rsp + 0x40]
call qword [fcn.18015e53a]
jmp 0x18012254c
mov rcx, rbx
cmp byte [r14 + 0x132d], dil
je 0x18012252c
call fcn.180121760
mov edi, eax
jmp 0x18012254c
mov rcx, rbx
call fcn.180121760
mov edi, eax
jmp 0x18012254c
mov rcx, rbx
call fcn.180121710
mov edi, eax
jmp 0x18012254c
mov dword [rbx], 3
jmp 0x18012254c
lea rdx, str.tftp_send_first:_internal_error
mov rcx, r14
call fcn.1800fe3f0
mov eax, edi
mov rcx, qword [rsp + 0x190]
xor rcx, rsp
call fcn.18015d6a0
lea r11, [rsp + 0x1a0]
mov rbx, qword [r11 + 0x30]
mov rbp, qword [r11 + 0x38]
mov rsp, r11
pop r14
pop rdi
pop rsi
ret
sub rsp, 0x28
mov r8d, dword [rcx]
mov r9, qword [rcx + 0x10]
test r8d, r8d
je 0x180122707
sub r8d, 1
je 0x1801226fe
sub r8d, 1
je 0x1801226f5
lea rdx, [0x180168a2c]
mov rcx, r9
cmp r8d, 1
je 0x1801226e2
lea r8, str.Internal_state_machine_error
call fcn.1800fe3f0
mov eax, 0x47
add rsp, 0x28
ret
lea r8, str.TFTP_finished
call fcn.1800fe4e0
xor eax, eax
add rsp, 0x28
ret
add rsp, 0x28
jmp fcn.180122850
add rsp, 0x28
jmp fcn.180121cb0
add rsp, 0x28
jmp 0x180121ff0