socketaddr.c

this is just a test file.please pardon me for the ignorance.ignorance is bliss

        memcpy(&(((struct sockaddr_in*)inSockAddr)->sin_addr), *(hostP->h_addr_list),
               (hostP->h_length));
    }
#endif
}
// end setHostname

/* -------------------------------------------------------------------
 * Copy the IP address into the string.
 * ------------------------------------------------------------------- */
void SockAddr_getHostAddress( iperf_sockaddr *inSockAddr, char* outAddress, 
                                size_t len ) {
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET ) {
        inet_ntop( AF_INET, &(((struct sockaddr_in*) inSockAddr)->sin_addr), 
                   outAddress, len);
    }
#ifdef HAVE_IPV6
    else {
        inet_ntop( AF_INET6, &(((struct sockaddr_in6*) inSockAddr)->sin6_addr), 
                   outAddress, len);
    }
#endif
}
// end getHostAddress

/* -------------------------------------------------------------------
 * Set the address to any (generally all zeros).
 * ------------------------------------------------------------------- */

void SockAddr_setAddressAny( iperf_sockaddr *inSockAddr ) {
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET )
        memset( &(((struct sockaddr_in*) inSockAddr)->sin_addr), 0, 
                sizeof( struct in_addr ));
#if defined(HAVE_IPV6)  
    else
        memset( &(((struct sockaddr_in6*) inSockAddr)->sin6_addr), 0, 
                sizeof( struct in6_addr ));
#endif
}
// end setAddressAny

/* -------------------------------------------------------------------
 * Set the port to the given port. Handles the byte swapping.
 * ------------------------------------------------------------------- */

void SockAddr_setPort( iperf_sockaddr *inSockAddr, unsigned short inPort ) {
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET )
        ((struct sockaddr_in*) inSockAddr)->sin_port = htons( inPort );
#if defined(HAVE_IPV6)  
    else
        ((struct sockaddr_in6*) inSockAddr)->sin6_port = htons( inPort );
#endif

}
// end setPort

/* -------------------------------------------------------------------
 * Set the port to zero, which lets the OS pick the port.
 * ------------------------------------------------------------------- */

void SockAddr_setPortAny( iperf_sockaddr *inSockAddr ) {
    SockAddr_setPort( inSockAddr, 0 );
}
// end setPortAny

/* -------------------------------------------------------------------
 * Return the port. Handles the byte swapping.
 * ------------------------------------------------------------------- */

unsigned short SockAddr_getPort( iperf_sockaddr *inSockAddr ) {
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET )
        return ntohs( ((struct sockaddr_in*) inSockAddr)->sin_port );
#if defined(HAVE_IPV6)
    else
        return ntohs( ((struct sockaddr_in6*) inSockAddr)->sin6_port);
#endif
    return 0;

}
// end getPort

/* -------------------------------------------------------------------
 * Return the IPv4 Internet Address from the sockaddr_in structure
 * ------------------------------------------------------------------- */

struct in_addr* SockAddr_get_in_addr( iperf_sockaddr *inSockAddr ) {
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET )
        return &(((struct sockaddr_in*) inSockAddr)->sin_addr);

    fprintf(stderr, "FATAL: get_in_addr called on IPv6 address\n");
    return NULL;
}

/* -------------------------------------------------------------------
 * Return the IPv6 Internet Address from the sockaddr_in6 structure
 * ------------------------------------------------------------------- */
#ifdef HAVE_IPV6
struct in6_addr* SockAddr_get_in6_addr( iperf_sockaddr *inSockAddr ) {
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET6 )
        return &(((struct sockaddr_in6*) inSockAddr)->sin6_addr);

    fprintf(stderr, "FATAL: get_in6_addr called on IPv4 address\n");
    return NULL;
}
#endif


/* -------------------------------------------------------------------
 * Return the size of the appropriate address structure.
 * ------------------------------------------------------------------- */

Socklen_t SockAddr_get_sizeof_sockaddr( iperf_sockaddr *inSockAddr ) {

#if defined(HAVE_IPV6)
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET6 ) {
        return(sizeof(struct sockaddr_in6));
    }
#endif
    return(sizeof(struct sockaddr_in));
}
// end get_sizeof_sockaddr


/* -------------------------------------------------------------------
 * Return if IPv6 socket
 * ------------------------------------------------------------------- */

int SockAddr_isIPv6( iperf_sockaddr *inSockAddr ) {

#if defined(HAVE_IPV6)
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET6 ) {
        return 1;
    }
#endif
    return 0;
}
// end get_sizeof_sockaddr

/* -------------------------------------------------------------------
 * Return true if the address is a IPv4 multicast address.
 * ------------------------------------------------------------------- */

int SockAddr_isMulticast( iperf_sockaddr *inSockAddr ) {

#if defined(HAVE_IPV6)
    if ( ((struct sockaddr*)inSockAddr)->sa_family == AF_INET6 ) {
        return( IN6_IS_ADDR_MULTICAST(&(((struct sockaddr_in6*) inSockAddr)->sin6_addr) ));
    } else
#endif
    {
        // 224.0.0.0 to 239.255.255.255 (e0.00.00.00 to ef.ff.ff.ff)
        const unsigned long kMulticast_Mask = 0xe0000000L;

        return(kMulticast_Mask ==
               (ntohl( ((struct sockaddr_in*) inSockAddr)->sin_addr.s_addr) & kMulticast_Mask));
    }
}
// end isMulticast

/* -------------------------------------------------------------------
 * Zero out the address structure.
 * ------------------------------------------------------------------- */

void SockAddr_zeroAddress( iperf_sockaddr *inSockAddr ) {
    memset( inSockAddr, 0, sizeof( iperf_sockaddr ));
}
// zeroAddress

/* -------------------------------------------------------------------
 * Compare two sockaddrs and return true if they are equal
 * ------------------------------------------------------------------- */
int SockAddr_are_Equal( struct sockaddr* first, struct sockaddr* second ) {
    if ( first->sa_family == AF_INET && second->sa_family == AF_INET ) {
        // compare IPv4 adresses
        return( ((long) ((struct sockaddr_in*)first)->sin_addr.s_addr == (long) ((struct sockaddr_in*)second)->sin_addr.s_addr)
                && ( ((struct sockaddr_in*)first)->sin_port == ((struct sockaddr_in*)second)->sin_port) );
    }
#if defined(HAVE_IPV6)      
    if ( first->sa_family == AF_INET6 && second->sa_family == AF_INET6 ) {
        // compare IPv6 addresses
        return( !memcmp(((struct sockaddr_in6*)first)->sin6_addr.s6_addr, ((struct sockaddr_in6*)second)->sin6_addr.s6_addr, sizeof(struct in6_addr)) 
                && (((struct sockaddr_in6*)first)->sin6_port == ((struct sockaddr_in6*)second)->sin6_port) );
    }
#endif 
    return 0;

}

/* -------------------------------------------------------------------
 * Compare two sockaddrs and return true if the hosts are equal
 * ------------------------------------------------------------------- */
int SockAddr_Hostare_Equal( struct sockaddr* first, struct sockaddr* second ) {
    if ( first->sa_family == AF_INET && second->sa_family == AF_INET ) {
        // compare IPv4 adresses
        return( (long) ((struct sockaddr_in*)first)->sin_addr.s_addr == 
                (long) ((struct sockaddr_in*)second)->sin_addr.s_addr);
    }
#if defined(HAVE_IPV6)      
    if ( first->sa_family == AF_INET6 && second->sa_family == AF_INET6 ) {
        // compare IPv6 addresses
        return( !memcmp(((struct sockaddr_in6*)first)->sin6_addr.s6_addr, 
                        ((struct sockaddr_in6*)second)->sin6_addr.s6_addr, sizeof(struct in6_addr)));
    }
#endif 
    return 0;

}
#ifdef __cplusplus
} /* end extern "C" */
#endif