connect

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2 total messages Started by pul... Krzysztof Pulapa Tue, 06 Feb 1996 00:00

#273

Author: pul... Krzysztof Pulapa
Date: Tue, 06 Feb 1996 00:00

32 lines
1344 bytes

Dlaczego pod SunOS 4.1.3 ponizszy kawalek chodzi poprawnie a pod linuxem nie ?

int call_dcc(hostname,port)
char *hostname;
int port;
{
   struct sockaddr_in sa;
   int    s;
#if defined(hpux) || defined(NeXT) || defined(ultrix) || defined(POSIX)
     memset(&sa,0,sizeof(sa));
#else
     bzero(&sa,sizeof(sa));
#endif
   sa.sin_family=AF_INET;sa.sin_port=htons((u_short)port);
   sa.sin_addr.s_addr = inet_addr(hostname);
   s=socket(AF_INET, SOCK_STREAM, 0);
   if (s==-1) return(-1);
   if(connect(s,(struct sockaddr *) &sa, sizeof(sa)) < 0) 
   { 
      (void)close(s); return(-1); 
   }
   return(s);
}
                              
Udalo mie sie tylko ustalic ze -1 jest zwracane przez connect ...

PS.
    hostname to numerek , a port numer portu .
--
Pulapa Krzysztof   ,  Politechnika Krakowska
  E-mail:   pul...@edison.pk.edu.pl , ji...@avalon.wbc.lublin.pl
  URL   :   http://avalon.wbc.lublin.pl/~jimi , on IRC : Jimi

Re: connect

#274

Author: Daniel Switkowski
Date: Thu, 08 Feb 1996 00:00

22 lines
1198 bytes

On Tue, 6 Feb 1996, Krzysztof Pulapa wrote:

> Dlaczego pod SunOS 4.1.3 ponizszy kawalek chodzi poprawnie a pod linuxem nie ?
> 
>    if(connect(s,(struct sockaddr *) &sa, sizeof(sa)) < 0) 
>    { 
>       (void)close(s); return(-1); 
>    }
>                               
> Udalo mie sie tylko ustalic ze -1 jest zwracane przez connect ...
> 

Sprawdz co connect () podstawia pod errno. Przynajmniej bedziesz
wiedzial czego szukac. Poza tym przetestuj tez inet_addr ()
czy nie zwraca -1.

Powodzenia, DS

+------------------------+---------------------------------+
| Daniel Switkowski      | Warsaw University of Technology |
| d...@it.pw.edu.pl       | Faculty of Transport, Poland    |
+------------------------+---------------------------------+

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