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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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DROP OPERATOR 
FAMILY(7) PostgreSQL 9.2.7 Documentation DROP OPERATOR FAMILY(7) NAME
DROP_OPERATOR_FAMILY - remove an operator family SYNOPSIS
DROP OPERATOR FAMILY [ IF EXISTS ] name USING index_method [ CASCADE | RESTRICT ] DESCRIPTION
DROP OPERATOR FAMILY drops an existing operator family. To execute this command you must be the owner of the operator family. DROP OPERATOR FAMILY includes dropping any operator classes contained in the family, but it does not drop any of the operators or functions referenced by the family. If there are any indexes depending on operator classes within the family, you will need to specify CASCADE for the drop to complete. PARAMETERS
IF EXISTS Do not throw an error if the operator family does not exist. A notice is issued in this case. name The name (optionally schema-qualified) of an existing operator family. index_method The name of the index access method the operator family is for. CASCADE Automatically drop objects that depend on the operator family. RESTRICT Refuse to drop the operator family if any objects depend on it. This is the default. EXAMPLES
Remove the B-tree operator family float_ops: DROP OPERATOR FAMILY float_ops USING btree; This command will not succeed if there are any existing indexes that use operator classes within the family. Add CASCADE to drop such indexes along with the operator family. COMPATIBILITY
There is no DROP OPERATOR FAMILY statement in the SQL standard. SEE ALSO
ALTER OPERATOR FAMILY (ALTER_OPERATOR_FAMILY(7)), CREATE OPERATOR FAMILY (CREATE_OPERATOR_FAMILY(7)), ALTER OPERATOR CLASS (ALTER_OPERATOR_CLASS(7)), CREATE OPERATOR CLASS (CREATE_OPERATOR_CLASS(7)), DROP OPERATOR CLASS (DROP_OPERATOR_CLASS(7)) PostgreSQL 9.2.7 2014-02-17 DROP OPERATOR FAMILY(7)
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