Initial revision

1 files changed, 189 insertions, 0 deletions

diff --git a/libc/inet/rpc/xdr_stdio.c b/libc/inet/rpc/xdr_stdio.c
new file mode 100644
index 000000000..694774f6f
--- /dev/null
+++ b/libc/inet/rpc/xdr_stdio.c
@@ -0,0 +1,189 @@
+/* @(#)xdr_stdio.c	2.1 88/07/29 4.0 RPCSRC */
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ * 
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ * 
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ * 
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ * 
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ * 
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+#if !defined(lint) && defined(SCCSIDS)
+static char sccsid[] = "@(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro";
+#endif
+
+/*
+ * xdr_stdio.c, XDR implementation on standard i/o file.
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
+ *
+ * This set of routines implements a XDR on a stdio stream.
+ * XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes
+ * from the stream.
+ */
+
+#include <rpc/types.h>
+#include <stdio.h>
+#include <rpc/xdr.h>
+
+static bool_t	xdrstdio_getlong();
+static bool_t	xdrstdio_putlong();
+static bool_t	xdrstdio_getbytes();
+static bool_t	xdrstdio_putbytes();
+static u_int	xdrstdio_getpos();
+static bool_t	xdrstdio_setpos();
+static long *	xdrstdio_inline();
+static void	xdrstdio_destroy();
+
+/*
+ * Ops vector for stdio type XDR
+ */
+static struct xdr_ops	xdrstdio_ops = {
+	xdrstdio_getlong,	/* deseraialize a long int */
+	xdrstdio_putlong,	/* seraialize a long int */
+	xdrstdio_getbytes,	/* deserialize counted bytes */
+	xdrstdio_putbytes,	/* serialize counted bytes */
+	xdrstdio_getpos,	/* get offset in the stream */
+	xdrstdio_setpos,	/* set offset in the stream */
+	xdrstdio_inline,	/* prime stream for inline macros */
+	xdrstdio_destroy	/* destroy stream */
+};
+
+/*
+ * Initialize a stdio xdr stream.
+ * Sets the xdr stream handle xdrs for use on the stream file.
+ * Operation flag is set to op.
+ */
+void
+xdrstdio_create(xdrs, file, op)
+	register XDR *xdrs;
+	FILE *file;
+	enum xdr_op op;
+{
+
+	xdrs->x_op = op;
+	xdrs->x_ops = &xdrstdio_ops;
+	xdrs->x_private = (caddr_t)file;
+	xdrs->x_handy = 0;
+	xdrs->x_base = 0;
+}
+
+/*
+ * Destroy a stdio xdr stream.
+ * Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create.
+ */
+static void
+xdrstdio_destroy(xdrs)
+	register XDR *xdrs;
+{
+	(void)fflush((FILE *)xdrs->x_private);
+	/* xx should we close the file ?? */
+};
+
+static bool_t
+xdrstdio_getlong(xdrs, lp)
+	XDR *xdrs;
+	register long *lp;
+{
+
+	if (fread((caddr_t)lp, sizeof(long), 1, (FILE *)xdrs->x_private) != 1)
+		return (FALSE);
+#ifndef mc68000
+	*lp = ntohl(*lp);
+#endif
+	return (TRUE);
+}
+
+static bool_t
+xdrstdio_putlong(xdrs, lp)
+	XDR *xdrs;
+	long *lp;
+{
+
+#ifndef mc68000
+	long mycopy = htonl(*lp);
+	lp = &mycopy;
+#endif
+	if (fwrite((caddr_t)lp, sizeof(long), 1, (FILE *)xdrs->x_private) != 1)
+		return (FALSE);
+	return (TRUE);
+}
+
+static bool_t
+xdrstdio_getbytes(xdrs, addr, len)
+	XDR *xdrs;
+	caddr_t addr;
+	u_int len;
+{
+
+	if ((len != 0) && (fread(addr, (int)len, 1, (FILE *)xdrs->x_private) != 1))
+		return (FALSE);
+	return (TRUE);
+}
+
+static bool_t
+xdrstdio_putbytes(xdrs, addr, len)
+	XDR *xdrs;
+	caddr_t addr;
+	u_int len;
+{
+
+	if ((len != 0) && (fwrite(addr, (int)len, 1, (FILE *)xdrs->x_private) != 1))
+		return (FALSE);
+	return (TRUE);
+}
+
+static u_int
+xdrstdio_getpos(xdrs)
+	XDR *xdrs;
+{
+
+	return ((u_int) ftell((FILE *)xdrs->x_private));
+}
+
+static bool_t
+xdrstdio_setpos(xdrs, pos) 
+	XDR *xdrs;
+	u_int pos;
+{ 
+
+	return ((fseek((FILE *)xdrs->x_private, (long)pos, 0) < 0) ?
+		FALSE : TRUE);
+}
+
+static long *
+xdrstdio_inline(xdrs, len)
+	XDR *xdrs;
+	u_int len;
+{
+
+	/*
+	 * Must do some work to implement this: must insure
+	 * enough data in the underlying stdio buffer,
+	 * that the buffer is aligned so that we can indirect through a
+	 * long *, and stuff this pointer in xdrs->x_buf.  Doing
+	 * a fread or fwrite to a scratch buffer would defeat
+	 * most of the gains to be had here and require storage
+	 * management on this buffer, so we don't do this.
+	 */
+	return (NULL);
+}