--- ray/src/hd/rhdisp.c	1998/12/20 20:39:31	3.38
+++ ray/src/hd/rhdisp.c	2003/02/22 02:07:24	3.43
@@ -1,9 +1,6 @@
-/* Copyright (c) 1998 Silicon Graphics, Inc. */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ SGI";
+static const char	RCSid[] = "$Id: rhdisp.c,v 3.43 2003/02/22 02:07:24 greg Exp $";
 #endif
-
 /*
  * Holodeck display process.
  */
@@ -22,6 +19,14 @@ static char SCCSid[] = "$SunId$ SGI";
 #define FSIZDEF		0.125	/* default focus frame size */
 #endif
 
+#if defined(freebsd)
+#define fbufcnt(f)	((f)->_r)
+#elif defined(__GNUC__)
+#define fbufcnt(f)	((f)->_IO_read_end - (f)->_IO_read_ptr)
+#else
+#define fbufcnt(f)	((f)->_cnt)
+#endif
+
 HOLO	*hdlist[HDMAX+1];	/* global holodeck list */
 
 char	*hdgfn[HDMAX];		/* holodeck section geometry list */
@@ -40,7 +45,6 @@ char	*progname;		/* global argv[0] */
 FILE	*sstdin, *sstdout;	/* server's standard input and output */
 
 #ifdef DEBUG
-#include <sys/types.h>
 extern time_t	time();
 static time_t	tmodesw;
 static time_t	timm, tadd;
@@ -56,7 +60,6 @@ main(argc, argv)
 int	argc;
 char	*argv[];
 {
-	extern int	eputs();
 	int	rdy, inp, res = 0, pause = 0;
 
 	progname = argv[0];
@@ -155,10 +158,12 @@ disp_wait()			/* wait for more input */
 	int	n;
 	register int	i;
 				/* see if we can avoid select call */
+	if (hdlist[0] == NULL)
+		return(RDY_SRV);	/* initialize first */
 	flgs = 0;		/* flag what's ready already */
-	if (imm_mode || stdin->_cnt > 0)
+	if (imm_mode || fbufcnt(stdin) > 0)
 		flgs |= RDY_SRV;
-	if (sstdin != NULL && sstdin->_cnt > 0)
+	if (sstdin != NULL && fbufcnt(sstdin) > 0)
 		flgs |= RDY_SIN;
 	if (odev.inpready)
 		flgs |= RDY_DEV;
@@ -269,7 +274,8 @@ register VIEW	*v;
 	static VIEW	viewhist[VIEWHISTLEN];
 	static unsigned	nhist;
 	VIEW	*dv;
-	int	i, res[2], *slist;
+	int	i, res[2];
+	int2	*slist;
 	char	*err;
 				/* restore previous view? */
 	if (v == NULL) {
@@ -502,6 +508,8 @@ serv_result()			/* get next server result and process 
 		break;
 	case DS_STARTIMM:
 	case DS_ENDIMM:
+		if (!(imm_mode = msg.type==DS_STARTIMM))
+			dev_flush();
 #ifdef DEBUG
 		{
 			time_t	tnow = time(NULL);
@@ -510,8 +518,6 @@ serv_result()			/* get next server result and process 
 			tmodesw = tnow;
 		}
 #endif
-		if (!(imm_mode = msg.type==DS_STARTIMM))
-			dev_flush();
 		goto noargs;
 	case DS_ACKNOW:
 	case DS_SHUTDOWN:
@@ -560,6 +566,7 @@ char	*p;
 }
 
 
+void
 eputs(s)			/* put error message to stderr */
 register char  *s;
 {
@@ -579,6 +586,7 @@ register char  *s;
 }
 
 
+void
 quit(code)			/* clean up and exit */
 int	code;
 {