get_hostaddrs

SFL
Version 2.11

`get_hostaddrs`

#include "sflsock.h"
qbyte *
get_hostaddrs (void)

Synopsis

Returns a table of all host IP addresses. The table ends in a zero address. Each address is a 4-byte value in host format. Returns NULL if there was an error. If sockets are not supported, returns a table with the loopback address (127.0.0.1) and a null address. The caller must free the table using mem_free() when finished using it.

Source Code - (sflsock.c)

{
#if (defined (DOES_SOCKETS))
    int
        addr_count;                     /*  How many addresses do we have    */
    qbyte
        *addr_table;                    /*  Where we store the addresses     */
    struct hostent
        *phe;                           /*  Host information entry           */

    if ((phe = gethostbyname (get hostname ())) == NULL)
        return (NULL);

    /*  Count the addresses                                                  */
    for (addr_count = 0; phe-> h_addr_list [addr_count]; addr_count++);

    /*  Allocate a table; socket addresses are 4 bytes                       */
    addr_table = mem_alloc (4 * (addr_count + 1));

    /*  Store the addresses                                                  */
    for (addr_count = 0; phe-> h_addr_list [addr_count]; addr_count++)
        addr_table [addr_count]
            = *(qbyte *) (phe-> h_addr_list [addr_count]);

    addr_table [addr_count] = 0;
    return (addr_table);

#else
    qbyte
        *addr_table;                    /*  Where we store the addresses     */

    addr_table = mem_alloc (8);         /*  Addresses are 4 bytes            */
    addr_table [0] = htonl (SOCKET_LOOPBACK);
    addr_table [1] = 0;
    return (addr_table);
#endif
}

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