Python socket.error:[Errno 13]权限被拒绝 [英] Python socket.error: [Errno 13] Permission denied
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问题描述
我要使用Linux和Python,通过广播发送一些数据:
Using Linux and Python, I want to send some data with broadcast:
d = b'109u433279423423423'
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.sendto(d, 0, ('192.168.0.255', 9))
我在根目录下启动此脚本并得到以下错误:
I launch this script under root and get this error:
s.sendto(d, 0, ('192.168.0.255', 9)) socket.error: [Errno 13]
Permission denied
怎么了?
推荐答案
您正尝试发送到广播地址.不允许,请参见sendto(2)的联机帮助页:
You are trying to send to a broadcast address. It is not allowed, see manpage for sendto(2):
EACCES (用于UDP套接字)试图发送到网络/广播地址,就好像它是单播地址一样.
EACCES (For UDP sockets) An attempt was made to send to a network/broadcast address as though it was a unicast address.
如果您实际上想发送到广播地址,请设置SO_BROADCAST选项:
Set the SO_BROADCAST option, if you actually mean to send to a broadcast address:
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
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