Solaris

int establist_connection(thrd_no, host_name, serv_name, socky, port_no, retry)
int  thrd_no;
char *host_name;
char *serv_name;
int *socky;
int *port_no;
int retry;
{
    struct sockaddr_in serv_add = {0};
    struct sockaddr_in myaddr_in = {0};
    struct hostent *hp = NULL;
    struct servent *sp = NULL;
    struct servent *sRes = NULL;
    struct hostent *hRes = NULL;
    char servBuf[1024];
    char hostBuf[1024];
    int errnop = 0;

   memset ((char *) &serv_add, 0, sizeof(struct sockaddr_in));
    sock_no=0;
   *socky=0;

   /* set up server address structure */
    serv_add.sin_family = AF_INET;

   /* get the remote host information to establish address for server */

   hRes = (struct hostent *)malloc(sizeof(struct hostent));
   hp = gethostbyname_r(host_name, hRes, hostBuf, sizeof(hostBuf), &errnop);

    if(hRes)
     free(hRes);

    if (hp==NULL)
    {
        *socky=0;
        return(-1);
    }

core DUM
=============
detected a multithreaded program
t@24988 (l@24988) terminated by signal BUS (invalid address alignment)
0x0001d638: establist_connection+0x0108:    ld      [%l0], %l0

dbx: internal error: signal SIGSEGV (no mapping at the fault address)
dbx's coredump will appear in /tmp