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- /*
- * $Id: xdr_stdio.c,v 4.2 1994/09/29 23:48:50 jraja Exp $
- *
- * XDR implementation on standard i/o file.
- *
- * Copyright © 1994 AmiTCP/IP Group,
- * Network Solutions Development Inc.
- * All rights reserved.
- */
-
- /* @(#)xdr_stdio.c 2.1 88/07/29 4.0 RPCSRC */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * 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 <sys/param.h>
- #include <rpc/types.h>
- #include <stdio.h>
- #include <rpc/xdr.h>
-
- static bool_t xdrstdio_getlong(XDR * xdrs, long * lp);
- static bool_t xdrstdio_putlong(XDR * xdrs, long * lp);
- static bool_t xdrstdio_getbytes(XDR * xdrs, caddr_t addr, u_int len);
- static bool_t xdrstdio_putbytes(XDR * xdrs, caddr_t addr, u_int len);
- static u_int xdrstdio_getpos(XDR * xdrs);
- static bool_t xdrstdio_setpos(XDR * xdrs, u_int pos);
- static long * xdrstdio_inline(XDR * xdrs, u_int len);
- static void xdrstdio_destroy(XDR * xdrs);
-
- /*
- * 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 */
- };
-
- /*
- * AmiTCP/IP specific
- */
- #ifdef USE_DOSIO
- /* dos.library file */
- #define FILETYPE BPTR
- #else
- /* C runtime file */
- #define FILETYPE FILE *
- #endif
-
- /*
- * 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;
- FILETYPE 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((FILETYPE)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, (FILETYPE)xdrs->x_private) != 1)
- return (FALSE);
- #if !(defined(mc68000) || defined(_M68000))
- *lp = ntohl(*lp);
- #endif
- return (TRUE);
- }
-
- static bool_t
- xdrstdio_putlong(xdrs, lp)
- XDR *xdrs;
- long *lp;
- {
-
- #if !(defined(mc68000) || defined(_M68000))
- long mycopy = htonl(*lp);
- lp = &mycopy;
- #endif
- if (fwrite((caddr_t)lp, sizeof(long), 1, (FILETYPE)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, (FILETYPE)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, (FILETYPE)xdrs->x_private) != 1))
- return (FALSE);
- return (TRUE);
- }
-
- static u_int
- xdrstdio_getpos(xdrs)
- XDR *xdrs;
- {
-
- return ((u_int) ftell((FILETYPE)xdrs->x_private));
- }
-
- static bool_t
- xdrstdio_setpos(xdrs, pos)
- XDR *xdrs;
- u_int pos;
- {
-
- return ((fseek((FILETYPE)xdrs->x_private, (long)pos, SEEK_SET) < 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);
- }
-
-