Linux Python socket.error: [Errno 13] 权限被拒绝
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Python socket.error: [Errno 13] Permission denied
提问by atomAltera
Using Linux and Python, I want to send some data with broadcast:
使用 Linux 和 Python，我想通过广播发送一些数据：
d = b'109u433279423423423'
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.sendto(d, 0, ('192.168.0.255', 9))
I launch this script under root and get this error:
我在 root 下启动这个脚本并得到这个错误：
s.sendto(d, 0, ('192.168.0.255', 9)) socket.error: [Errno 13]
Permission denied
What is wrong?
怎么了？
采纳答案by fork0
You are trying to send to a broadcast address. It is not allowed, see manpage for sendto(2):
您正在尝试发送到广播地址。这是不允许的，请参阅 sendto(2) 的联机帮助页：
EACCES(For UDP sockets) An attempt was made to send to a network/broadcast address as though it was a unicast address.
EACCES（对于 UDP 套接字）尝试发送到网络/广播地址，就好像它是单播地址一样。
Set the SO_BROADCAST option, if you actually mean to send to a broadcast address:
设置 SO_BROADCAST 选项，如果你真的想发送到广播地址：
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
