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Problems with sockets on Win NT
mkrishnam at my-deja
Aug 4, 1999, 4:28 PM
Post #1 of 4 (413 views)
Permalink
Hi,

I'm trying to exchange datagram (UDP) packets
between a unix machine and a Win NT machine.

The UDP packets sent from Win NT machine are
received properly on unix machine. However UDP
packets sent from unix machine is not at all
received on WinNT machine.

I'm using recvfrom method to receive the packets.

The code I'm using is as below.

# Code on Win NT machine

from socket import *

my_sock = socket(AF_INET, SOCK_DGRAM)
my_sock.bind('localhost', 6123)

while(1):
test = my_sock.recv(1024)
print "got it!"

# Code on Unix machine

from socket import *

my_sock = socket(AF_INET, SOCK_DGRAM)
my_sock.bind('localhost', 6440)

dst_addr = 'leto',6123

while (1):
print my_sock.sendto("Hello", dst_addr)

A help is kindly appreciated.

Thanks
- Murali


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Problems with sockets on Win NT [ In reply to ]
gmcm at hypernet
Aug 4, 1999, 6:08 PM
Post #2 of 4 (407 views)
Permalink
Murali wrote:
>
> I'm trying to exchange datagram (UDP) packets
> between a unix machine and a Win NT machine.
>
> The UDP packets sent from Win NT machine are
> received properly on unix machine. However UDP
> packets sent from unix machine is not at all
> received on WinNT machine.
>
> I'm using recvfrom method to receive the packets.

You sure? That's not what your code says:

> test = my_sock.recv(1024)

- Gordon
Problems with sockets on Win NT [ In reply to ]
donn at u
Aug 5, 1999, 8:52 AM
Post #3 of 4 (406 views)
Permalink
mkrishnam@my-deja.com writes:
| I'm trying to exchange datagram (UDP) packets
| between a unix machine and a Win NT machine.
|
| The UDP packets sent from Win NT machine are
| received properly on unix machine. However UDP
| packets sent from unix machine is not at all
| received on WinNT machine.
|
| I'm using recvfrom method to receive the packets.
|
| The code I'm using is as below.

In this code, you seem to be using recv() instead of recvfrom().
Maybe you could follow up with some clarification.

Donn Cave, University Computing Services, University of Washington
donn@u.washington.edu
-----------------------------
| # Code on Win NT machine
|
| from socket import *
|
| my_sock = socket(AF_INET, SOCK_DGRAM)
| my_sock.bind('localhost', 6123)
|
| while(1):
| test = my_sock.recv(1024)
| print "got it!"
|
| # Code on Unix machine
|
| from socket import *
|
| my_sock = socket(AF_INET, SOCK_DGRAM)
| my_sock.bind('localhost', 6440)
|
| dst_addr = 'leto',6123
|
| while (1):
| print my_sock.sendto("Hello", dst_addr)
Problems with sockets on Win NT [ In reply to ]
m_krishnam at trillium
Aug 5, 1999, 9:45 AM
Post #4 of 4 (408 views)
Permalink
In article <1278310965-17570891@hypernet.com>,
gmcm@hypernet.com wrote:
> > I'm using recvfrom method to receive the packets.
>
> You sure? That's not what your code says:
>
> > test = my_sock.recv(1024)

Yes, there is a mismatch between code and description. I got it solved.
Thanks for the reply.

- Murali


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