HP UX 11i v2 Networking Software manual 168

Sample Programs

Raw Mode

#define GOT_DATA	2
#define GOT_BOTH	3
#define GOT_INTR	4

/*-=-* get a message from a stream; return type of message *-=-*/ int

get_msg(fd)

int fd;

{

int	flags = 0;
int	res, ret;

ctl_area[0] = 0; dat_area[0] = 0; ret = 0;

res = getmsg(fd, &ctl, &dat, &flags);

if(res < 0) { if(errno == EINTR) {

return(GOT_INTR); } else {

printf(”%s,get_msg: getmsg failed, errno = %d\n”, tag, errno); exit(1);

}

}

if(ctl.len > 0) { ret = GOT_CTRL;

}

if(dat.len > 0) { ret = GOT_DATA;

}

return(ret);

}

/*-=-* verify that dl_primitive in ctl_area = prim *-=-*/ int

check_ctrl(prim)

int prim;

{

dl_error_ack_t *err_ack = (dl_error_ack_t *)ctl_area;

if(err_ack->dl_primitive != prim) { if(err_ack->dl_primitive == DL_ERROR_ACK) {

printf(”%s,check_ctrl: got DL_ERROR_ACK\n”,tag); printf(” dl_error_primitive = 0x%02x\n”,

err_ack->dl_error_primitive);

168 Appendix A