Function at 0x7ffd21c16e90
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 [0x7ffd21c77690]
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 + 0x1352], sil
cmove r14, rax
cmp edx, 7
ja case.0x7ffd21c1684c.1
lea r8, [0x7ffd21b40000]
movsxd rax, edx
mov ecx, dword [r8 + rax*4 + 0xd6d70]
add rcx, r8
jmp rcx
inc dword [rbx + 0x20]
mov eax, dword [rbx + 0x20]
cmp eax, dword [rbx + 0x28]
jle 0x7ffd21c1686d
mov dword [rbx + 8], 0xffffff9e
xor eax, eax
mov dword [rbx], 3
jmp 0x7ffd21c16d47
mov rax, qword [rbx + 0x158]
cmp byte [r15 + 0x1358], sil
mov byte [rax], sil
mov rax, qword [rbx + 0x158]
je 0x7ffd21c168b8
mov byte [rax + 1], 2
mov rcx, qword [rbx + 0x158]
mov rax, qword [rbx + 0x10]
add rcx, 4
mov qword [rax + 0x198], rcx
mov rdx, qword [r15 + 0x11a0]
cmp rdx, 0xffffffffffffffff
je 0x7ffd21c168bc
mov rcx, r15
call fcn.7ffd21c0d2b0
jmp 0x7ffd21c168bc
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 + 0x11f0]
inc rcx
call fcn.7ffd21c29330
mov esi, eax
test eax, eax
jne 0x7ffd21c16d47
movsxd rdx, dword [rbx + 0x144]
mov rdi, 0xffffffffffffffff
mov rax, rdi
nop dword [rax]
inc rax
cmp byte [r14 + rax], 0
jne 0x7ffd21c16900
mov r9, qword [rsp + 0x40]
mov rcx, rdx
sub rcx, rax
mov rax, rdi
sub rcx, 4
nop dword [rax]
inc rax
cmp byte [r9 + rax], 0
jne 0x7ffd21c16920
cmp rax, rcx
jbe 0x7ffd21c16953
lea rdx, str.TFTP_file_name_too_long
mov rcx, r15
call fcn.7ffd21bfca40
mov rcx, qword [rsp + 0x40]
call qword [fcn.7ffd21c415aa]
mov eax, 0x47
jmp 0x7ffd21c16d47
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.7ffd21c00e30
mov rcx, rdi
inc rcx
cmp byte [r14 + rcx], 0
jne 0x7ffd21c16984
mov rdx, qword [rsp + 0x40]
mov rax, rdi
nop word [rax + rax]
cmp byte [rdx + rax + 1], 0
lea rax, [rax + 1]
jne 0x7ffd21c169a0
lea r14, [rax + 4]
add r14, rcx
cmp byte [r15 + 0xa8c], 0
jne 0x7ffd21c16c94
cmp byte [r15 + 0x1358], 0
je 0x7ffd21c169ee
mov r9, qword [r15 + 0x11a0]
cmp r9, rdi
je 0x7ffd21c169ee
lea r8, str._I64d
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.7ffd21c00e30
jmp 0x7ffd21c169f8
mov eax, 0x30
mov word [rsp + 0x50], ax
movsxd rax, dword [rbx + 0x144]
lea r8, [r14 + 6]
cmp r8, rax
jbe 0x7ffd21c16a0f
lea rcx, [rsp + 0x50]
jmp 0x7ffd21c16a63
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 0x7ffd21c16a20
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x7ffd21c16a40
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
lea rcx, [rsp + 0x50]
jbe 0x7ffd21c16aa1
mov r9d, dword [rbx + 0x148]
lea r8, [0x7ffd21c5775c]
mov edx, 0x40
call fcn.7ffd21c00e30
mov r9d, dword [rbx + 0x24]
lea r8, [0x7ffd21c5775c]
mov edx, 0x40
lea rcx, [rsp + 0x50]
call fcn.7ffd21c00e30
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x7ffd21c16936
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 0x7ffd21c16ab0
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x7ffd21c16ad0
mov r9d, dword [rbx + 0x148]
lea rsi, [rax + 1]
add rsi, r8
lea rcx, [rsp + 0x50]
lea r8, [0x7ffd21c5775c]
mov edx, 0x40
call fcn.7ffd21c00e30
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x7ffd21c16a7b
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 0x7ffd21c16b30
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x7ffd21c16b50
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
lea rcx, [rsp + 0x50]
jbe 0x7ffd21c16b94
mov r9d, dword [rbx + 0x24]
lea r8, [0x7ffd21c5775c]
mov edx, 0x40
call fcn.7ffd21c00e30
lea rdx, str.TFTP_buffer_too_small_for_options
jmp 0x7ffd21c16936
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 0x7ffd21c16ba0
lea rcx, [rsp + 0x50]
mov rax, rdi
nop dword [rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x7ffd21c16bc0
mov r9d, dword [rbx + 0x24]
lea rsi, [rax + 1]
add rsi, r8
lea rcx, [rsp + 0x50]
lea r8, [0x7ffd21c5775c]
mov edx, 0x40
call fcn.7ffd21c00e30
movsxd rax, dword [rbx + 0x144]
lea r8, [rsi + 8]
cmp r8, rax
ja 0x7ffd21c16a95
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 0x7ffd21c16c11
lea rcx, [rsp + 0x50]
mov rax, rdi
nop word [rax + rax]
cmp byte [rcx + rax + 1], 0
lea rax, [rax + 1]
jne 0x7ffd21c16c30
lea rcx, [rax + 1]
movsxd rax, dword [rbx + 0x144]
add rcx, r8
cmp rcx, rax
ja 0x7ffd21c16a95
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 0x7ffd21c16c61
lea rax, [rsp + 0x50]
nop word [rax + rax]
cmp byte [rax + rdi + 1], 0
lea rdi, [rdi + 1]
jne 0x7ffd21c16c80
lea r14, [rdi + 1]
add r14, r8
xor esi, esi
mov rax, qword [r15 + 0x18]
xor r9d, r9d
mov rcx, qword [rbx + 0x18]
mov rdx, qword [rax + 0x58]
mov eax, dword [rdx + 0xc]
lea r8, [rdx + 0x10]
mov rdx, qword [rbx + 0x158]
mov dword [rsp + 0x28], eax
mov qword [rsp + 0x20], r8
mov r8d, r14d
call qword [sym.imp.ws2_32.dll_sendto]
movsxd rcx, eax
cmp rcx, r14
je 0x7ffd21c16cf4
call qword [sym.imp.ws2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rbp - 0x70]
mov ecx, eax
call fcn.7ffd21be6b90
mov r8, rax
lea rdx, [0x7ffd21c57774]
mov rcx, r15
call fcn.7ffd21bfca40
mov rcx, qword [rsp + 0x40]
call qword [fcn.7ffd21c415aa]
jmp 0x7ffd21c16d45
mov rcx, rbx
cmp byte [r15 + 0x1358], sil
je 0x7ffd21c16d25
call fcn.7ffd21c15f30
mov esi, eax
jmp 0x7ffd21c16d45
mov rcx, rbx
call fcn.7ffd21c15f30
mov esi, eax
jmp 0x7ffd21c16d45
mov rcx, rbx
call fcn.7ffd21c15ee0
mov esi, eax
jmp 0x7ffd21c16d45
mov dword [rbx], 3
jmp 0x7ffd21c16d45
lea rdx, str.tftp_send_first:_internal_error
mov rcx, r15
call fcn.7ffd21bfca40
mov eax, esi
mov rcx, qword [rbp + 0x90]
xor rcx, rsp
call fcn.7ffd21c3f7f0
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 0x7ffd21c16ef7
sub r8d, 1
je 0x7ffd21c16eee
sub r8d, 1
je 0x7ffd21c16ee5
lea rdx, [0x7ffd21c57774]
mov rcx, r9
cmp r8d, 1
je 0x7ffd21c16ed2
lea r8, str.Internal_state_machine_error
call fcn.7ffd21bfca40
mov eax, 0x47
add rsp, 0x28
ret
lea r8, str.TFTP_finished
call fcn.7ffd21bfcb30
xor eax, eax
add rsp, 0x28
ret
add rsp, 0x28
jmp fcn.7ffd21c17040
add rsp, 0x28
jmp fcn.7ffd21c164a0
add rsp, 0x28
jmp 0x7ffd21c167e0