[ale] Still dealing with Nextel

Robert L. Harris Robert.L.Harris at rdlg.net
Thu Jan 23 15:09:31 EST 2003



I've stopped my firewall (iptables -F and all policies set to ACCEPT)
and I get the same functionality.  I also don't block any outbound
traffic, just some inbound.  There's also no dropped packets on the
firewall according to dmesg (I prefix in syslog so I see the nmap bugs
hitting the windshield).


Thus spake cfowler (cfowler at outpostsentinel.com):

> Firewall on your end.
> 
> 
> On Thu, 2003-01-23 at 13:28, Robert L. Harris wrote:
> > 
> > 
> > Well, I've cut this, how do I actually execut it?
> > 
> > On the other hand:
> > 
> > {0}:/home/nomad>telnet snpp.nextel.com 444
> > Trying 170.206.252.7...
> > 
> > 
> > It times out.  SNPP may not work either.  The only traffic I can get to
> > nextel is http...
> > 
> > 
> > Thus spake cfowler (cfowler at outpostsentinel.com):
> > 
> > > /**
> > >  * Funtion will send a page to SNPP server
> > >  *
> > >  * @param   snpp    Pointer to snpp configuration
> > >  * @param   message Pointer to char array dit message
> > >  *
> > >  * @return  int     0 on success -1 on error
> > >  * */
> > > int
> > > sendSnppPage(struct snpp *s, const char *message)
> > > {
> > >     struct sockaddr_in  server; // Server info
> > >     char    buffer[1024];       // Incoming buffer
> > >     int     sock;
> > >     char    *ptr;
> > >     
> > >     // Configure the connection info
> > >     server.sin_family = AF_INET;
> > >     server.sin_port = htons(s->port ? s->port : 444); // If port is 0
> > > default to 444
> > >     server.sin_addr.s_addr = inet_addr(ip2sip(s->snppServer));
> > >     memset(&(server.sin_zero), '\0' , 8);
> > >     
> > >     // Create our connection
> > >     if((sock = socket(AF_INET, SOCK_STREAM,0)) == -1)
> > >         return -1;
> > > 
> > >     if(connect(sock, (struct sockaddr *)&server, sizeof(struct
> > > sockaddr)) == -1)
> > >         return -1;
> > > 
> > >     // Read the ffirst message
> > >     ptr = readPeer(buffer, sock, sizeof(buffer));
> > >     snppDebug(ptr);
> > >     if(getCode(ptr) != 220)
> > >         return -1;
> > > 
> > > 
> > >     // Send the PAGE Command
> > >     snprintf(buffer, sizeof(buffer), "PAGE %s\r\n", s->id);
> > >     write(sock, buffer, strlen(buffer));
> > > 
> > >     ptr = readPeer(buffer, sock, sizeof(buffer));
> > >     snppDebug(ptr);
> > >     if(getCode(ptr) != 250)
> > >         return -1;
> > > 
> > >     // Send the message
> > >     write(sock, "MESS ", 5);
> > >     write(sock, message, strlen(message));
> > >     write(sock, "\r\n", 2);
> > > 
> > >     ptr = readPeer(buffer, sock, sizeof(buffer));
> > >     snppDebug(ptr);
> > >     if(getCode(ptr) != 250)
> > >         return -1;
> > > 
> > >     write(sock, "SEND\r\n ", 6);
> > >     ptr = readPeer(buffer, sock, sizeof(buffer));
> > >     snppDebug(ptr);
> > >     if(getCode(ptr) != 250)
> > >         return -1;
> > > 
> > >     // Terminate the conenction gracefully with the
> > >     // SNPP server
> > >     write(sock, "QUIT\r\n ", 6);
> > > 
> > >     // No longer need this data
> > >     close(sock);
> > > 
> > >     return 0;
> > > }
> > > 
> > > static char *
> > > readPeer(char *buffer, int sock, int num)
> > > {
> > >     char *ptr;
> > >     int n;
> > > 
> > >     if((n = read(sock, buffer, num)) <= 0)
> > >         return NULL;
> > > 
> > >     // Strip out a New line
> > >     if((ptr = strchr(buffer, '\n')) != NULL)
> > >         *ptr = 0;
> > > 
> > >     // Strip out a carriage return
> > >     if((ptr = strchr(buffer, '\r')) != NULL)
> > >         *ptr = 0;
> > > 
> > > 
> > >     ptr = buffer;
> > >     return ptr;
> > > 
> > > 
> > > }
> > > 
> > > 
> > > static int
> > > getCode(const char *message)
> > > {
> > >     char ptr[3] = { 0 };
> > > 
> > >     if(!message || *message == 0)
> > >         return 0;
> > > 
> > >     if(strlen(message) < 3)
> > >         return 0;
> > > 
> > >     ptr[0] = message[0];
> > >     ptr[1] = message[1];
> > >     ptr[2] = message[2];
> > > 
> > >     return atoi(ptr);
> > > 
> > > }
> > > 
> > > 
> > > That is all you need.
> > > 
> > > 
> > > This is the client
> > > 
> > > int
> > > main(int argc, char **argv) {
> > >   strunct snpp *s;
> > > 
> > >   s->ip = argv[1];
> > >   s->port = atoi(argv[2);
> > >   s->phone = argv[3]);
> > > 
> > >   sendSnppPage(&s, "Call Me");
> > > 
> > >   return;
> > > }
> > > 
> > > Of course this code needs tweaking.  The main funciton that is
> > > 
> > > 
> > > 
> > > 
> > > 
> > > On Thu, 2003-01-23 at 12:52, Robert L. Harris wrote:
> > > > 
> > > > 
> > > > I'm looking at the Net::SNPP module which appears a bit incomplete.  I
> > > > don't know java so I'm running with perl.  Looks like I'll be using
> > > > perl::expect since the Net::SNPP is complaining about missing or
> > > > undefined arguements when I'm running cut and paste (except for pager
> > > > number, etc) from the man page.
> > > > 
> > > > 
> > > > Thus spake cfowler (cfowler at outpostsentinel.com):
> > > > 
> > > > > Who needs a stinkin client?.  SNPP, SMTP, and POP3 and what I would call
> > > > > transaction based interfaces.  This makes SNPP that more awesome.  It
> > > > > means you can interface with telnet, Java, Perl, or even C.
> > > > > 
> > > > > Basically in Java do this:
> > > > > 
> > > > > try {
> > > > >  Socket s = new Socket("snpp.nextel.com", 443);
> > > > >  BufferedInputStream bis = new BufferedInputStream(s.getInputStream());
> > > > >  BufferedOutputStream bos = new
> > > > > BufferedOutputStream(s.getOutputStream());
> > > > > 
> > > > >  // Know we have stream
> > > > >  String s = bis.readLine();
> > > > >  
> > > > > 
> > > > >  PAGE <Number>
> > > > >  MESS <message>
> > > > >  SEND
> > > > >  QUIT
> > > > > 
> > > > >  // MAke sure after sending each command you get a 2XX respoinse back. 
> > > > > Just check the first 3 bytes in the bis.readLine() and convert to an
> > > > > integer.  Then you can check the the number against 2XX.
> > > > > 
> > > > > Example Page I just did to Nextel, your carrier
> > > > > 
> > > > > 
> > > > > [cfowler at cfowler - CHROOT insmod]$ telnet snpp.nextel.com 444
> > > > > Trying 170.206.252.7...
> > > > > Connected to snpp.nextel.com.
> > > > > Escape character is '^]'.
> > > > > 220 SNPP Gateway Ready
> > > > > page 7705601050
> > > > > 250 Pager ID Accepted
> > > > > MESS Call me
> > > > > 250 Message OK
> > > > > SEND
> > > > > 250 Message Sent Successfully
> > > > > QUIT
> > > > > 221 OK, Goodbye
> > > > > Connection closed by foreign host.
> > > > > 
> > > > > With ease of use like that, who needs freshmeat to solve this one?
> > > > > 
> > > > > 
> > > > > That simple.  
> > > > > 
> > > > > 
> > > > > 
> > > > > On Thu, 2003-01-23 at 12:25, Robert L. Harris wrote:
> > > > > > 
> > > > > > 
> > > > > > Got a good linux client?
> > > > > > 
> > > > > > Thus spake cfowler (cfowler at outpostsentinel.com):
> > > > > > 
> > > > > > > SNPP
> > > > > > > 
> > > > > > > Nextel supports it!
> > > > > > > 
> > > > > > > On Thu, 2003-01-23 at 09:50, Robert L. Harris wrote:
> > > > > > > > 
> > > > > > > > 
> > > > > > > >   Ok, I'm still arguing with nextel about emailing to their messaging
> > > > > > > > servers.  Talking to their techs is along the lines of explaining
> > > > > > > > nuclear fusion t a chicken I've surmised.
> > > > > > > > 
> > > > > > > >   I'm trying to narrow down the argument here as much as possible.
> > > > > > > > 
> > > > > > > > The scenario:
> > > > > > > >   From my office I can email to <phone>@messaging.nextel.com and get a
> > > > > > > >     page within 2 mins
> > > > > > > >   From my home (*.rdlg.net) any email to messaging.nextel.com times out
> > > > > > > >     and is never deleivered.
> > > > > > > > 
> > > > > > > >   I've been told to email to paging.nextel.com instead, but see'ing as
> > > > > > > >     it has the same MX servers there's not much difference.  Telnet to
> > > > > > > >     port 25 on the MX connects from my office but not from home.  (At this
> > > > > > > >     point I'm told they don't use telnet to send messages, they use an email
> > > > > > > >     to SMS gateway...  BAWK!!!!)
> > > > > > > > 
> > > > > > > >   I've tested with my firewall completely dropped, no change in
> > > > > > > >     behavior.
> > > > > > > > 
> > > > > > > > Anyone have any thoughts on this?  It's become one of those fights I
> > > > > > > > just can't give up as it's now a matter of principle...
> > > > > > > > 
> > > > > > > > Robert
> > > > > > > > 
> > > > > > > > 
> > > > > > > > :wq!
> > > > > > > > ---------------------------------------------------------------------------
> > > > > > > > Robert L. Harris                     | PGP Key ID: FC96D405
> > > > > > > >                                
> > > > > > > > DISCLAIMER:
> > > > > > > >       These are MY OPINIONS ALONE.  I speak for no-one else.
> > > > > > > > FYI:
> > > > > > > >  perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> > > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > _______________________________________________
> > > > > > > Ale mailing list
> > > > > > > Ale at ale.org
> > > > > > > http://www.ale.org/mailman/listinfo/ale
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > :wq!
> > > > > > ---------------------------------------------------------------------------
> > > > > > Robert L. Harris                     | PGP Key ID: FC96D405
> > > > > >                                
> > > > > > DISCLAIMER:
> > > > > >       These are MY OPINIONS ALONE.  I speak for no-one else.
> > > > > > FYI:
> > > > > >  perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> > > > > > 
> > > > > 
> > > > > 
> > > > > _______________________________________________
> > > > > Ale mailing list
> > > > > Ale at ale.org
> > > > > http://www.ale.org/mailman/listinfo/ale
> > > > 
> > > > 
> > > > 
> > > > :wq!
> > > > ---------------------------------------------------------------------------
> > > > Robert L. Harris                     | PGP Key ID: FC96D405
> > > >                                
> > > > DISCLAIMER:
> > > >       These are MY OPINIONS ALONE.  I speak for no-one else.
> > > > FYI:
> > > >  perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> > > > 
> > > 
> > > 
> > > _______________________________________________
> > > Ale mailing list
> > > Ale at ale.org
> > > http://www.ale.org/mailman/listinfo/ale
> > 
> > 
> > 
> > :wq!
> > ---------------------------------------------------------------------------
> > Robert L. Harris                     | PGP Key ID: FC96D405
> >                                
> > DISCLAIMER:
> >       These are MY OPINIONS ALONE.  I speak for no-one else.
> > FYI:
> >  perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> > 
> 
> 
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale



:wq!
---------------------------------------------------------------------------
Robert L. Harris                     | PGP Key ID: FC96D405
                               
DISCLAIMER:
      These are MY OPINIONS ALONE.  I speak for no-one else.
FYI:
 perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'


 PGP signature




More information about the Ale mailing list