Function at 0x7ffd21c17040
Capabilities:
Send data
Send data on socket

Disassembly:
mov qword [rsp + 0x18], rbx
mov qword [rsp + 0x20], rsi
push rdi
sub rsp, 0x150
mov rax, qword [0x7ffd21c77690]
xor rax, rsp
mov qword [rsp + 0x140], rax
mov rdi, qword [rcx + 0x10]
mov rbx, rcx
mov ecx, edx
xor esi, esi
sub ecx, 4
je 0x7ffd21c171cb
sub ecx, 1
je 0x7ffd21c17155
sub ecx, 1
je 0x7ffd21c171cb
cmp ecx, 1
mov rcx, rdi
je 0x7ffd21c170a6
mov r8d, edx
lea rdx, str.tftp_tx:_internal_error__event:__i
call fcn.7ffd21bfca40
jmp 0x7ffd21c173f4
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.7ffd21bfcb30
mov eax, dword [rbx + 0x28]
cmp dword [rbx + 0x20], eax
jle 0x7ffd21c170e4
mov dword [rbx + 8], 0xffffff9d
mov dword [rbx], 3
jmp 0x7ffd21c173f4
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 0x7ffd21c173e5
call qword [sym.imp.ws2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rsp + 0x40]
mov ecx, eax
call fcn.7ffd21be6b90
mov r8, rax
lea rdx, [0x7ffd21c57774]
mov rcx, rdi
call fcn.7ffd21bfca40
mov eax, 0x37
jmp 0x7ffd21c173f6
mov dword [rbx], 3
xor r9d, r9d
mov rax, qword [rbx + 0x158]
lea r8d, [r9 + 4]
mov byte [rax], sil
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 0x7ffd21c173f4
cmp edx, 4
jne 0x7ffd21c172cd
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 0x7ffd21c172bb
test r9w, r9w
jne 0x7ffd21c1720f
cmp r8d, 0xffff
je 0x7ffd21c172bb
lea rdx, str.Received_ACK_for_block__d__expecting__d
mov rcx, rdi
call fcn.7ffd21bfcb30
inc dword [rbx + 0x20]
mov eax, dword [rbx + 0x20]
cmp eax, dword [rbx + 0x28]
jle 0x7ffd21c1724c
movzx r8d, word [rbx + 0x14c]
lea rdx, str.tftp_tx:_giving_up_waiting_for_block__d_ack
mov rcx, rdi
call fcn.7ffd21bfca40
mov esi, 0x37
mov eax, esi
jmp 0x7ffd21c173f6
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 0x7ffd21c172b4
call qword [sym.imp.ws2_32.dll_WSAGetLastError]
mov r8d, 0x100
lea rdx, [rsp + 0x40]
mov ecx, eax
call fcn.7ffd21be6b90
mov r8, rax
lea rdx, [0x7ffd21c57774]
mov rcx, rdi
call fcn.7ffd21bfca40
mov esi, 0x37
mov eax, esi
jmp 0x7ffd21c173f6
lea rcx, [rbx + 0x30]
call sub.ucrtbase.dll__time64
inc word [rbx + 0x14c]
jmp 0x7ffd21c172d9
mov eax, 1
mov word [rbx + 0x14c], ax
mov dword [rbx + 0x20], esi
mov rax, qword [rbx + 0x158]
mov byte [rax], sil
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 0x7ffd21c1732f
mov eax, dword [rbx + 0x144]
cmp dword [rbx + 0x140], eax
jl 0x7ffd21c171c0
mov rcx, qword [rbx + 0x158]
mov rax, qword [rbx + 0x10]
add rcx, 4
mov dword [rbx + 0x140], esi
mov qword [rax + 0x198], rcx
nop dword [rax + rax]
mov eax, dword [rbx + 0x144]
lea r8, [rsp + 0x30]
sub eax, dword [rbx + 0x140]
mov rcx, rdi
movsxd rdx, eax
call fcn.7ffd21c02c30
test eax, eax
jne 0x7ffd21c173f6
mov rcx, qword [rsp + 0x30]
add dword [rbx + 0x140], ecx
mov rax, qword [rbx + 0x10]
add qword [rax + 0x198], rcx
mov r8d, dword [rbx + 0x140]
cmp r8d, dword [rbx + 0x144]
jge 0x7ffd21c173a1
cmp qword [rsp + 0x30], rsi
jne 0x7ffd21c17350
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 0x7ffd21c17121
movsxd rax, dword [rbx + 0x140]
add qword [rdi + 0x100], rax
mov rdx, qword [rdi + 0x100]
mov rcx, rdi
call fcn.7ffd21c0d2a0
xor eax, eax
mov rcx, qword [rsp + 0x140]
xor rcx, rsp
call fcn.7ffd21c3f7f0
lea r11, [rsp + 0x150]
mov rbx, qword [r11 + 0x20]
mov rsi, qword [r11 + 0x28]
mov rsp, r11
pop rdi
ret