7d1de115db
1999-03-08 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * sysdeps/unix/sysv/linux/ttyname.c (ttyname): Undo last change. /dev/pts status may change during runtime. 1999-03-08 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * sysdeps/unix/sysv/linux/ttyname_r.c (__ttyname_r): Undo last change. /dev/pts status can change during runtime. 1999-03-07 Thorsten Kukuk <kukuk@suse.de> * sunrpc/svc_tcp.c (readtcp): go into fatal error state if poll reports error. * nis/nss_nisplus/nisplus-parser.c: Avoid duplicate strlen calls, add some more sanity checks. * nis/nss_nisplus/nisplus-pwd.c: Include nisplus-parser.h for parser prototype. 1999-03-05 Thorsten Kukuk <kukuk@suse.de> * sunrpc/rpc/xdr.h: Add x_getint32/x_putint32 to xdr_ops, change XDR_GETINT32/XDR_PUTINT32 to sue new functions. * sunrpc/xdr_mem.c: Add xdrmem_getint32, xdrmem_putint32. * sunrpc/xdr_rec.c: Add xdrrec_getint32, xdrrec_putint32. * sunrpc/xdr_sizeof.c: Add x_putint32, add dummy function for x_getint32. * sunrpc/xdr_stdio.c: Add xdrstdio_getint32, xdrstdio_putint32. * nis/nis_print.c: Fix ctime argument for platforms where sizeof (time_t) != sizeof (int). 255. Patch by Bruno Haible <haible@ilog.fr> [PR libc/1010].
258 lines
6.3 KiB
C
258 lines
6.3 KiB
C
/* @(#)xdr_mem.c 2.1 88/07/29 4.0 RPCSRC */
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/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#if !defined(lint) && defined(SCCSIDS)
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static char sccsid[] = "@(#)xdr_mem.c 1.19 87/08/11 Copyr 1984 Sun Micro";
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#endif
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/*
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* xdr_mem.h, XDR implementation using memory buffers.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*
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* If you have some data to be interpreted as external data representation
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* or to be converted to external data representation in a memory buffer,
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* then this is the package for you.
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*
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*/
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#include <string.h>
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#include <rpc/rpc.h>
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static bool_t xdrmem_getlong (XDR *, long *);
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static bool_t xdrmem_putlong (XDR *, const long *);
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static bool_t xdrmem_getbytes (XDR *, caddr_t, u_int);
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static bool_t xdrmem_putbytes (XDR *, const char *, u_int);
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static u_int xdrmem_getpos (const XDR *);
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static bool_t xdrmem_setpos (XDR *, u_int);
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static long *xdrmem_inline (XDR *, int);
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static void xdrmem_destroy (XDR *);
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static bool_t xdrmem_getint32 (XDR *, int32_t *);
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static bool_t xdrmem_putint32 (XDR *, const int32_t *);
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static const struct xdr_ops xdrmem_ops =
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{
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xdrmem_getlong,
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xdrmem_putlong,
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xdrmem_getbytes,
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xdrmem_putbytes,
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xdrmem_getpos,
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xdrmem_setpos,
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xdrmem_inline,
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xdrmem_destroy,
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xdrmem_getint32,
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xdrmem_putint32
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};
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/*
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* The procedure xdrmem_create initializes a stream descriptor for a
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* memory buffer.
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*/
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void
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xdrmem_create (xdrs, addr, size, op)
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XDR *xdrs;
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const caddr_t addr;
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u_int size;
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enum xdr_op op;
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{
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xdrs->x_op = op;
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/* We have to add the const since the `struct xdr_ops' in `struct XDR'
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is not `const'. */
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xdrs->x_ops = (struct xdr_ops *) &xdrmem_ops;
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xdrs->x_private = xdrs->x_base = addr;
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xdrs->x_handy = size;
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}
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/*
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* Nothing needs to be done for the memory case. The argument is clearly
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* const.
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*/
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static void
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xdrmem_destroy (XDR *xdrs)
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{
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}
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/*
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* Gets the next word from the memory referenced by xdrs and places it
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* in the long pointed to by lp. It then increments the private word to
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* point at the next element. Neither object pointed to is const
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*/
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static bool_t
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xdrmem_getlong (xdrs, lp)
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XDR *xdrs;
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long *lp;
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{
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if ((xdrs->x_handy -= 4) < 0)
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return FALSE;
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*lp = (int32_t) ntohl ((*((int32_t *) (xdrs->x_private))));
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xdrs->x_private += 4;
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return TRUE;
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}
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/*
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* Puts the long pointed to by lp in the memory referenced by xdrs. It
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* then increments the private word to point at the next element. The
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* long pointed at is const
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*/
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static bool_t
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xdrmem_putlong (xdrs, lp)
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XDR *xdrs;
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const long *lp;
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{
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if ((xdrs->x_handy -= 4) < 0)
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return FALSE;
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*(int32_t *) xdrs->x_private = htonl (*lp);
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xdrs->x_private += 4;
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return TRUE;
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}
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/*
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* Gets an unaligned number of bytes from the xdrs structure and writes them
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* to the address passed in addr. Be very careful when calling this routine
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* as it could leave the xdrs pointing to an unaligned structure which is not
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* a good idea. None of the things pointed to are const.
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*/
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static bool_t
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xdrmem_getbytes (xdrs, addr, len)
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XDR *xdrs;
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caddr_t addr;
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u_int len;
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{
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if ((xdrs->x_handy -= len) < 0)
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return FALSE;
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bcopy (xdrs->x_private, addr, len);
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xdrs->x_private += len;
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return TRUE;
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}
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/*
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* The complementary function to the above. The same warnings apply about
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* unaligned data. The source address is const.
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*/
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static bool_t
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xdrmem_putbytes (xdrs, addr, len)
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XDR *xdrs;
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const char *addr;
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u_int len;
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{
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if ((xdrs->x_handy -= len) < 0)
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return FALSE;
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bcopy (addr, xdrs->x_private, len);
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xdrs->x_private += len;
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return TRUE;
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}
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/*
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* Not sure what this one does. But it clearly doesn't modify the contents
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* of xdrs. **FIXME** does this not assume u_int == u_long?
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*/
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static u_int
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xdrmem_getpos (xdrs)
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const XDR *xdrs;
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{
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return (u_long) xdrs->x_private - (u_long) xdrs->x_base;
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}
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/*
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* xdrs modified
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*/
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static bool_t
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xdrmem_setpos (xdrs, pos)
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XDR *xdrs;
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u_int pos;
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{
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caddr_t newaddr = xdrs->x_base + pos;
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caddr_t lastaddr = xdrs->x_private + xdrs->x_handy;
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if ((long) newaddr > (long) lastaddr)
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return FALSE;
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xdrs->x_private = newaddr;
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xdrs->x_handy = (long) lastaddr - (long) newaddr;
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return TRUE;
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}
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/*
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* xdrs modified
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*/
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static long *
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xdrmem_inline (xdrs, len)
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XDR *xdrs;
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int len;
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{
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long *buf = 0;
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if (xdrs->x_handy >= len)
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{
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xdrs->x_handy -= len;
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buf = (long *) xdrs->x_private;
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xdrs->x_private += len;
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}
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return buf;
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}
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/*
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* Gets the next word from the memory referenced by xdrs and places it
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* in the int pointed to by ip. It then increments the private word to
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* point at the next element. Neither object pointed to is const
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*/
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static bool_t
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xdrmem_getint32 (XDR *xdrs, int32_t *ip)
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{
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if ((xdrs->x_handy -= 4) < 0)
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return FALSE;
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*ip = ntohl ((*((int32_t *) (xdrs->x_private))));
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xdrs->x_private += 4;
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return TRUE;
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}
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/*
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* Puts the long pointed to by lp in the memory referenced by xdrs. It
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* then increments the private word to point at the next element. The
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* long pointed at is const
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*/
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static bool_t
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xdrmem_putint32 (XDR *xdrs, const int32_t *ip)
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{
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if ((xdrs->x_handy -= 4) < 0)
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return FALSE;
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*(int32_t *) xdrs->x_private = htonl (*ip);
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xdrs->x_private += 4;
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return TRUE;
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}
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