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Operating Systems OS X (Apple) Address family not supported by protocol family Post 302189431 by DNAx86 on Friday 25th of April 2008 06:03:04 PM
Old 04-25-2008
Address family not supported by protocol family

Hi,

I compiled with no error a C program, than I tryed to execute it and than I get this error:

connessione al server fallita: Address family not supported by protocol family


What does it mean?

Why I get this error only on Mac os x while on Ubuntu the program works?

The code is:
/*
* EsameClient.c
*
*/

#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

#define NR 3
#define MAXLENGTH 80
#define SERVER_PORT 1313

int main (unsigned argc, char **argv)
{
int sockfd;
struct sockaddr_in server={AF_INET,htons(SERVER_PORT),INADDR_ANY};
int i=0,len;
char buf[MAXLENGTH],c;
int buffer[NR], stato;

/* Controllo Parametri Passati da Terminale */
if(argc != 4) // argv[1] -> argv[3] sono le risorse
{
perror("Chiamata corretta del programma:\nnome-programma <risorsa1> <risorsa2> <risorsa3> \n<risorsai> deve essere un intero positivo");
exit(1);
}

/* impostazione del transport end point */
if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
perror("chiamata alla system call socket fallita");
exit(1);
}
/* connessione al server */
if(connect(sockfd,(struct sockaddr *)&server,sizeof server)==-1)
{
perror("connessione al server fallita");
exit(2);
}


/* ricezione e stampa a video del messaggio di benvenuto del server */
if(recv(sockfd,buf,27,0)>0)
{
buf[27]='\0';
printf("%s",buf);
}
else
{
perror("Connessione al server interrotta");
exit(3);
}

/* acquisizione della stringa da standard input */
/* while((c=getchar())!='\n' && i<MAXLENGTH)
buf[i++]=c;
buf[i]='\0';
len=strlen(buf); */

// Imposta buffer e len
for(i=0; i<NR;i++)
buffer[i]=argv[i+1];
len=sizeof(buffer); // size?? o # = 3/////////////////////////////////////////////////////


/* invio e ricezione della stringa */
if(send(sockfd,buffer,len,0)==-1) // Se send ritorna -1 = errore
{
perror("Errore nell'invio della richiesta risorse al server");
exit(4);
}
if(recv(sockfd,&stato,len,0)>0)
{
printf("%d\n",stato);
}
else
{
perror("Connessione al server interrotta");
exit(3);
}

/* chiusura della connessione */
close(sockfd);
}
 

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Net::Write::Layer4(3pm) 				User Contributed Perl Documentation				   Net::Write::Layer4(3pm)

NAME
Net::Write::Layer4 - object for a transport layer (layer 4) descriptor SYNOPSIS
use Net::Write::Layer qw(:constants); use Net::Write::Layer4; my $desc = Net::Write::Layer4->new( dst => '192.168.0.1', protocol => NW_IPPROTO_TCP, family => NW_AF_INET, ); $desc->open; $desc->send('G'x666); $desc->close; DESCRIPTION
This is the class for creating a layer 4 descriptor. ATTRIBUTES
dst The target IPv4 or IPv6 address we will send frames to. family Address family, see Net::Write::Layer CONSTANTS section. protocol Transport layer protocol to use, see Net::Write::Layer CONSTANTS section. METHODS
new Object constructor. You MUST pass a valid dst attribute. Default values: protocol: NW_IPPROTO_TCP family: NW_AF_INET open Open the interface. send (scalar) Send raw data to the network. close Close the descriptor. CAVEATS
Does not work at all under Win32 systems. They can't send frames at layer 4. SEE ALSO
Net::Write::Layer AUTHOR
Patrice <GomoR> Auffret COPYRIGHT AND LICENSE
Copyright (c) 2006-2009, Patrice <GomoR> Auffret You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive. perl v5.10.1 2009-06-10 Net::Write::Layer4(3pm)
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