--- ray/src/common/process.c	2020/02/28 05:18:49	2.9
+++ ray/src/common/process.c	2024/10/29 00:35:06	2.13
@@ -1,10 +1,10 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: process.c,v 2.9 2020/02/28 05:18:49 greg Exp $";
+static const char	RCSid[] = "$Id: process.c,v 2.13 2024/10/29 00:35:06 greg Exp $";
 #endif
 /*
  * Routines to communicate with separate process via dual pipes
  *
- * External symbols declared in standard.h
+ * External symbols declared in rtprocess.h
  */
 
 #include "copyright.h"
@@ -24,12 +24,10 @@ The functions open_process() and close_process() exist
 int
 process(		/* process data through pd */
 	SUBPROC *pd,
-	char	*recvbuf, char *sendbuf,
+	void	*recvbuf, void *sendbuf,
 	int	nbr, int nbs
 )
 {
-	if (nbs > PIPE_BUF)
-		return(-1);
 	if (!(pd->flags & PF_RUNNING))
 		return(-1);
 	if (writebuf(pd->w, sendbuf, nbs) < nbs)
@@ -39,14 +37,15 @@ process(		/* process data through pd */
 
 
 
-int
+ssize_t
 readbuf(		/* read all of requested buffer */
 	int	fd,
-	char	*bpos,
-	int	siz
+	void	*buf,
+	ssize_t	siz
 )
 {
-	int	cc = 0, nrem = siz;
+	char	*bpos = (char *)buf;
+	ssize_t	cc = 0, nrem = siz;
 retry:
 	while (nrem > 0 && (cc = read(fd, bpos, nrem)) > 0) {
 		bpos += cc;
@@ -63,14 +62,15 @@ retry:
 }
 
 
-int
+ssize_t
 writebuf(		/* write all of requested buffer */
 int	fd,
-char	*bpos,
-int	siz
+const void	*buf,
+ssize_t	siz
 )
 {
-	int	cc = 0, nrem = siz;
+	const char	*bpos = (const char *)buf;
+	ssize_t		cc = 0, nrem = siz;
 retry:
 	while (nrem > 0 && (cc = write(fd, bpos, nrem)) > 0) {
 		bpos += cc;