Mcptron <mcptron@gmx.net> wrote in message news:<09Urb.683644$Id.99675@news.easynews.com>...
> ok, and now the nice one:
>
> even the demo code from the official ibm documentation under
>
> http://publib.boulder.ibm.com/doc_li...taccept_ex.htm
>
> has the problem.
>
> i've tried it on a aix 4.1.5 machine -> no problem, same code works fine.
>
> on the other hand: i've compiled on the same 4.3.3 and gcc 2.9 apache
> and openssh, which are working fine both...
>
> what's going on here?
>
> rg.
> mike
>
>
> Michael Petroni wrote:
>
> > hi!
> >
> > unter aix 4.3.3 and gcc 2.9 i have a problem on subsequent accept calls
> > on a server socket. here my sample code:
> >
> > ---
> > #include <netinet/in.h>
> > #include <sys/socket.h>
> >
> >
> > #define QUEUE_SIZE 2
> >
> >
> > main()
> > { int s, c;
> > struct sockaddr_in addr;
> >
> > addr.sin_family =AF_INET;
> > addr.sin_addr.s_addr = INADDR_ANY;
> > addr.sin_port = htons((u_short) 7111);
> >
> > s = socket(AF_INET, SOCK_STREAM, 0);
> > bind(s, (struct sock_addr *) &addr, sizeof(addr));
> > listen(s, QUEUE_SIZE);
> > while (1)
> > { c = accept(s, NULL, NULL);
> > close(c);
> > }
> > }
> > ---
> >
> > depending on the QUEUE_SIZE, accept never comes back after a defined
> > number of calls:
> >
> > size calls
> > 1 1
> > 2 3
> > 3 4
> > 4 6
> > 5 7
> > 6 9
> >
> > a connection try to the server port times out then but netstat -a still
> > shows me that port in listening mode. and my program hangs...
> >
> > does someone know anything about that?
> >
> > thx.
> > mike
> >

Mike,

Here's your code, with one small change.
main()
{ int s, c;
struct sockaddr_in addr;

addr.sin_family =AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_port = htons((u_short) 7111);

s = socket(AF_INET, SOCK_STREAM, 0);
/* original
bind(s, (struct sock_addr *) &addr, sizeof(addr));
* replacement below */
bind(s, (struct sockaddr *) &addr, sizeof(addr));
listen(s, QUEUE_SIZE);
while (1)
{ c = accept(s, NULL, NULL);
close(c);
}
}

I compiled this on AIX 4.3.3 with "C for AIX" compiler (vac ) version 5.
I also compiled it on AIX 5.1 with "C for AIX" complier (vac) version 6.

In both cases they ran flawlessly...
....I stopped testing at 30 successful accepts.

-tony