python socket programming...

[nitheshsalian]

hi,
can anyone tell me how to receive the data from a particular sender using the recvfrom system call in python????

i need the syntax(prototype) of the recvfrom call in python...

if possible please give me an example...

[amitpatel66]

This issue is related to Python, so moved this thread to Python forum

[Arnold Schuur]

hi,
can anyone tell me how to receive the data from a particular sender using the recvfrom system call in python????

i need the syntax(prototype) of the recvfrom call in python...

if possible please give me an example...

from socket import *

# Set the socket parameters
host = "localhost"
port = 21567
buf = 1024
addr = (host,port)
 
# Create socket and bind to address
UDPSock = socket(AF_INET,SOCK_DGRAM)
UDPSock.bind(addr)
 
# Receive messages
while 1:
    data,addr = UDPSock.recvfrom(buf)
    if not data:
        print "Client has exited!"
        break
    else:
        print "\nReceived message '", data,"'"
 
# Close socket
UDPSock.close()

[nitheshsalian]

wat if i want to receive the data from a particular client whose address is known???
i want to receive data from a particular client whose address is known...
wat other arguments should i add to tat system cal??

from socket import *

# Set the socket parameters
host = "localhost"
port = 21567
buf = 1024
addr = (host,port)
 
# Create socket and bind to address
UDPSock = socket(AF_INET,SOCK_DGRAM)
UDPSock.bind(addr)
 
# Receive messages
while 1:
    data,addr = UDPSock.recvfrom(buf)
    if not data:
        print "Client has exited!"
        break
    else:
        print "\nReceived message '", data,"'"
 
# Close socket
UDPSock.close()

[dazzler]

wat if i want to receive the data from a particular client whose address is known???
i want to receive data from a particular client whose address is known...
wat other arguments should i add to tat system cal??

I think that you can't tell address who are you listening to, only the port what are you listening and that's enough

when you have received message then you can block it if it's come from wrong ip address

[nitheshsalian]

I think that you can't tell address who are you listening to, only the port what are you listening and that's enough

when you have received message then you can block it if it's come from wrong ip address

but tat recvfrom() system call does have tat sender's address option which means i can receive from a particular sender.....