#include <stdlib.h>
#include <strings.h>

#include "lx.h"

#include "proto.h"
#include "internal.h"

void lx_ChangeHosts(LX_CONN *xc, LX_CHANGEHOSTSMODE mode, LX_HOSTTYPE type, int datalen, const void *data)
{
 unsigned char *req;
 int rl;
 int m;
 int t;
 const unsigned char *pd;

 if ((xc->flags & XCF_FAIL) || (datalen < 0) || (datalen > 65535))
  { lx__bad_call(xc,"lx_ChangeHosts");
    return;
  }
 lx__nochain(xc);
 pd = data;
 m = lx__changehostsmode_to_proto(mode);
 if (type == LX_HOSTTYPE_Other)
  { if (datalen < 1)
     { lx__bad_call(xc,"lx_ChangeHosts");
       return;
     }
    t = pd[0];
    pd ++;
    datalen --;
  }
 else
  { t = lx__hosttype_to_proto(type);
  }
 if ((m < 0) || (t < 0))
  { lx__bad_call(xc,"lx_ChangeHosts");
    return;
  }
 rl = 8 + ((datalen + 3) & ~3);
 req = malloc(rl);
 if (! req)
  { lx__nomem_fail(xc);
    return;
  }
 req[0] = XP_REQ_ChangeHosts;
 req[1] = m;
 w_card16(req+2,rl>>2);
 req[4] = t;
 req[5] = 0;
 w_card16(req+6,datalen);
 if (datalen) bcopy(data,req+8,datalen);
 lx__send_req_free(xc,req,rl);
}