Re: sockets help??
>
>
>I am trying to write winsock software to have one client connect to three different
>server computers (not simultaneously) by simple sock stream. I tried to create one
>socket and connect to each computer. Once the previous connection is completed with
>one of the computers, I would change the last part of the IP to connect to another
>computer, but with the same socket. I used the same port for all connections. It
>did not work. Any suggestions?
>
I don't know the winsock implemantation...but:
When you close the socket, you destroy the socket descriptor => you must
create a new socket descriptor, for examle:
sub net{
socket(SO,PF_INET,SOCK_STREAM,getprotobyname('tcp')) || die"$!\n";
my $ip=$_[0];
my $port=$_[1];
my $dest=sockaddr_in($port,inet_aton($ip));
if(connect(SO,$dest)){
###your client code ###
close(SO);
return 1;
}
else{
close(SO);
return 0;
}
}
Walter
>
>
>When I use closesocket() function, does that make that socket unusable?
>After you connect to a server computer, then leave continue doing something else, is
>the connection still live?
>
>Thanx!
>
>Raymond
>
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sockets help??
Hello, Just wondering if you could give me a hand with sockets? If not I understand. I am trying to write winsock software to have one client connect to three different server computers (not simultaneously) by simple sock stream. I tried to create one socket and connect to each computer. Once the previous connection is completed with one of the computers, I would change the last part of the IP to connect to another computer, but with the same socket. I used the same port for all connections. It did not work. Any suggestions? When I use closesocket() function, does that make that socket unusable? After you connect to a server computer, then leave continue doing something else, is the connection still live? Thanx! Raymond
Re: Sockets help
> "Jason" == Jason <[EMAIL PROTECTED]> writes: Jason> I need to write a program that will take a list of url's for pictures Jason> and download them. I was reading up on sockets but i found them a bit Jason> confusing. Some assistance with sockets would be very helpfull. CPAN has Image::Grab, perhaps exactly what you want. -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <[EMAIL PROTECTED]> http://www.stonehenge.com/merlyn/> Perl/Unix/security consulting, Technical writing, Comedy, etc. etc. See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training!
Re: Sockets help
On Wed, May 30, 2001 at 09:47:51AM -0400, Jason wrote: > I need to write a program that will take a list of url's for pictures > and download them. I was reading up on sockets but i found them a bit > confusing. Some assistance with sockets would be very helpfull. Use LWP::Simple. It can already do this out of the box, it's very easy to use, and it doesn't require any knowlege of sockets. Walt -- Walter C. Mankowski Senior Software EngineerMyxa Corporation phone: (610) 234-2626 fax: (610) 234-2640 email: [EMAIL PROTECTED]http://www.myxa.com
Re: Sockets help
Hi, better than playing with sockets and doing all that low-level HTTP stuff, take a look at LWP module(s). That's exactly what you need. On Wednesday 30 May 2001 15:47, Jason wrote: > I need to write a program that will take a list of url's for pictures > and download them. I was reading up on sockets but i found them a bit > confusing. Some assistance with sockets would be very helpfull. > > thanks, > Jason -- Ondrej Par Internet Securities Software Engineer e-mail: [EMAIL PROTECTED] Phone: +420 2 222 543 45 ext. 112
Sockets help
I need to write a program that will take a list of url's for pictures and download them. I was reading up on sockets but i found them a bit confusing. Some assistance with sockets would be very helpfull. thanks, Jason
