RE: RE : RE : [lwip-users] missing something but what

[Julian Gardner [RSD]]

fixed, thanks for making me delve into the code.

I had changed the pbuf.c to be protected by a semaphore but missed the fact 
that pbuf_chain called pbuf_cat and pbuf_ret instead of the old non protected 
versions

joolz

-----Original Message-----
From: address@hidden on behalf of Frédéric BERNON
Sent: Fri 20/07/2007 14:48
To: Mailing list for lwIP users
Subject: RE : RE : [lwip-users] missing something but what
 
Except the SO_REUSEADDR you should remove (this option is not supported by the 
stack), I don't see any problem. You should try :

addr.sin_addr.s_addr = inet_addr("239.255.255.250");
addr.sin_port      = htons(1900); 
  
Are you sure that nothing is sent from your device during this call? (do you 
have check with a network capture?)

====================================
Frédéric BERNON 
HYMATOM SA 
Chef de projet informatique 
Microsoft Certified Professional 
Tél. : +33 (0)4-67-87-61-10 
Fax. : +33 (0)4-67-70-85-44 
Email : address@hidden 
Web Site : http://www.hymatom.fr 
====================================
P Avant d'imprimer, penser à l'environnement
 


-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Julian Gardner [RSD]
Envoyé : vendredi 20 juillet 2007 15:00
À : Mailing list for lwIP users
Objet : RE: RE : [lwip-users] missing something but what


Thanks but same problem with code changed

int sock;
int onBool = 1;
int err;
struct sockaddr_in addr;

        BREAKPOINT;

        sock = socket(PF_INET, SOCK_DGRAM, 0);
    err = setsockopt( sock, SOL_SOCKET, SO_REUSEADDR, (char *) &onBool, sizeof 
(int));

        memset(&addr, 0, sizeof(addr));
        addr.sin_family          = AF_INET;
        addr.sin_addr.s_addr = htonl(INADDR_ANY);
        addr.sin_port            = 0;
        err = bind( sock, (struct sockaddr *)&addr, sizeof(struct sockaddr));

        memset(&addr, 0, sizeof(addr));
        addr.sin_family          = AF_INET;
        addr.sin_addr.s_addr = htonl( (239<<24)|(255<<16)|(255<<8)|(250));
        addr.sin_port            = 1900;
        err = sendto( sock, "Hello", 5, 0, (struct sockaddr *)&addr, sizeof( 
addr));
        closesocket( sock);

Now the other thing to let you know i that the stack is STABLE, i have a data 
transmitter (udp) which sends around 24Mbits of data per second throught a 
SMC9117 and there are no problems at all, also running is a HTTP server and 
that is fine.

joolz

-----Original Message-----
From: address@hidden on behalf of Frédéric BERNON
Sent: Fri 20/07/2007 13:37
To: Mailing list for lwIP users
Subject: RE : [lwip-users] missing something but what
 
Hi Julian,
 
You should got a "internal" (since it doesn't seems to return a error code) 
during the bind operation, since you try to bind your sock to a multicast 
address (which is a wrong idea).
 
If you only need to send mutlicast, you can bind to any addr/port, like this:
 
addr.sin_family = AF_INET;
addr.sin_port = htons(INADDR_ANY);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
 
and next, change the IP address to the multicast group you want.
 
addr.sin_addr.s_addr = htonl( (239<<24)|(255<<16)|(255<<8)|(250)); /* be sure 
of your byte-order */
 
Regards
 
 
  
====================================
Frédéric BERNON 
HYMATOM SA 
Chef de projet informatique 
Microsoft Certified Professional 
Tél. : +33 (0)4-67-87-61-10 
Fax. : +33 (0)4-67-70-85-44 
Email : address@hidden 
Web Site : http://www.hymatom.fr <http://www.hymatom.fr/>  
====================================
P Avant d'imprimer, penser à l'environnement
 

        -----Message d'origine-----
        De : address@hidden [mailto:address@hidden De la part de Julian Gardner 
[RSD]
        Envoyé : vendredi 20 juillet 2007 14:26
        À : address@hidden
        Objet : [lwip-users] missing something but what
        
        

        I have a small problem and cant work out what i am doing wrong.
        
        I have stripped out the code to this and this hangs in udp_sendto 
waiting on a mbox
        
        int sock;
        int onBool = 1;
        int err;
        struct sockaddr_in addr;
        
                memset(&addr, 0, sizeof(addr));
                addr.sin_family          = AF_INET;
                addr.sin_addr.s_addr = htonl( 
(239<<24)|(255<<16)|(255<<8)|(250));
                addr.sin_port            = 50050;
        
                sock = socket(PF_INET, SOCK_DGRAM, 0);
        //    err = setsockopt( sock, SOL_SOCKET, SO_REUSEADDR, (char *) 
&onBool, sizeof (int));
                err = bind( sock, (struct sockaddr *)&addr, sizeof(struct 
sockaddr));
                err = sendto( sock, "Hello", 5, 0, (struct sockaddr *)&addr, 
sizeof( addr));
                closesocket( sock);
        
        Any ideas, as i get no errors, also port 239.255.255.250 is opened as 
multicast but i am not even getting data to be passed to the ethernet chip.
        
        joolz

<<winmail.dat>>