[f41a394] | 1 | #include <machine/rtems-bsd-user-space.h> |
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| 2 | |
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| 3 | /* $NetBSD: xdr_stdio.c,v 1.14 2000/01/22 22:19:19 mycroft Exp $ */ |
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| 4 | |
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| 5 | /* |
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| 6 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for |
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| 7 | * unrestricted use provided that this legend is included on all tape |
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| 8 | * media and as a part of the software program in whole or part. Users |
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| 9 | * may copy or modify Sun RPC without charge, but are not authorized |
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| 10 | * to license or distribute it to anyone else except as part of a product or |
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| 11 | * program developed by the user. |
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| 12 | * |
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| 13 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE |
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| 14 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR |
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| 15 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. |
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| 16 | * |
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| 17 | * Sun RPC is provided with no support and without any obligation on the |
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| 18 | * part of Sun Microsystems, Inc. to assist in its use, correction, |
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| 19 | * modification or enhancement. |
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| 20 | * |
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| 21 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE |
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| 22 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC |
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| 23 | * OR ANY PART THEREOF. |
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| 24 | * |
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| 25 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue |
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| 26 | * or profits or other special, indirect and consequential damages, even if |
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| 27 | * Sun has been advised of the possibility of such damages. |
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| 28 | * |
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| 29 | * Sun Microsystems, Inc. |
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| 30 | * 2550 Garcia Avenue |
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| 31 | * Mountain View, California 94043 |
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| 32 | */ |
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| 33 | |
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| 34 | #if defined(LIBC_SCCS) && !defined(lint) |
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| 35 | static char *sccsid2 = "@(#)xdr_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro"; |
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| 36 | static char *sccsid = "@(#)xdr_stdio.c 2.1 88/07/29 4.0 RPCSRC"; |
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| 37 | #endif |
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| 38 | #include <sys/cdefs.h> |
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| 39 | __FBSDID("$FreeBSD$"); |
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| 40 | |
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| 41 | /* |
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| 42 | * xdr_stdio.c, XDR implementation on standard i/o file. |
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| 43 | * |
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| 44 | * Copyright (C) 1984, Sun Microsystems, Inc. |
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| 45 | * |
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| 46 | * This set of routines implements a XDR on a stdio stream. |
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| 47 | * XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes |
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| 48 | * from the stream. |
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| 49 | */ |
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| 50 | |
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| 51 | #include "namespace.h" |
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| 52 | #include <stdio.h> |
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| 53 | |
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| 54 | #include <arpa/inet.h> |
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| 55 | #include <rpc/types.h> |
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| 56 | #include <rpc/xdr.h> |
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| 57 | #include "un-namespace.h" |
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| 58 | |
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| 59 | static void xdrstdio_destroy(XDR *); |
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| 60 | static bool_t xdrstdio_getlong(XDR *, long *); |
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| 61 | static bool_t xdrstdio_putlong(XDR *, const long *); |
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| 62 | static bool_t xdrstdio_getbytes(XDR *, char *, u_int); |
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| 63 | static bool_t xdrstdio_putbytes(XDR *, const char *, u_int); |
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| 64 | static u_int xdrstdio_getpos(XDR *); |
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| 65 | static bool_t xdrstdio_setpos(XDR *, u_int); |
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| 66 | static int32_t *xdrstdio_inline(XDR *, u_int); |
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| 67 | |
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| 68 | /* |
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| 69 | * Ops vector for stdio type XDR |
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| 70 | */ |
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| 71 | static const struct xdr_ops xdrstdio_ops = { |
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| 72 | xdrstdio_getlong, /* deseraialize a long int */ |
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| 73 | xdrstdio_putlong, /* seraialize a long int */ |
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| 74 | xdrstdio_getbytes, /* deserialize counted bytes */ |
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| 75 | xdrstdio_putbytes, /* serialize counted bytes */ |
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| 76 | xdrstdio_getpos, /* get offset in the stream */ |
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| 77 | xdrstdio_setpos, /* set offset in the stream */ |
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| 78 | xdrstdio_inline, /* prime stream for inline macros */ |
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| 79 | xdrstdio_destroy /* destroy stream */ |
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| 80 | }; |
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| 81 | |
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| 82 | /* |
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| 83 | * Initialize a stdio xdr stream. |
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| 84 | * Sets the xdr stream handle xdrs for use on the stream file. |
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| 85 | * Operation flag is set to op. |
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| 86 | */ |
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| 87 | void |
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| 88 | xdrstdio_create(xdrs, file, op) |
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| 89 | XDR *xdrs; |
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| 90 | FILE *file; |
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| 91 | enum xdr_op op; |
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| 92 | { |
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| 93 | |
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| 94 | xdrs->x_op = op; |
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| 95 | xdrs->x_ops = &xdrstdio_ops; |
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| 96 | xdrs->x_private = file; |
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| 97 | xdrs->x_handy = 0; |
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| 98 | xdrs->x_base = 0; |
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| 99 | } |
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| 100 | |
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| 101 | /* |
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| 102 | * Destroy a stdio xdr stream. |
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| 103 | * Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create. |
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| 104 | */ |
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| 105 | static void |
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| 106 | xdrstdio_destroy(xdrs) |
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| 107 | XDR *xdrs; |
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| 108 | { |
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| 109 | (void)fflush((FILE *)xdrs->x_private); |
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| 110 | /* XXX: should we close the file ?? */ |
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| 111 | } |
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| 112 | |
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| 113 | static bool_t |
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| 114 | xdrstdio_getlong(xdrs, lp) |
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| 115 | XDR *xdrs; |
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| 116 | long *lp; |
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| 117 | { |
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| 118 | u_int32_t temp; |
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| 119 | |
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| 120 | if (fread(&temp, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1) |
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| 121 | return (FALSE); |
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| 122 | *lp = (long)ntohl(temp); |
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| 123 | return (TRUE); |
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| 124 | } |
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| 125 | |
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| 126 | static bool_t |
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| 127 | xdrstdio_putlong(xdrs, lp) |
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| 128 | XDR *xdrs; |
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| 129 | const long *lp; |
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| 130 | { |
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| 131 | int32_t mycopy = htonl((u_int32_t)*lp); |
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| 132 | |
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| 133 | if (fwrite(&mycopy, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1) |
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| 134 | return (FALSE); |
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| 135 | return (TRUE); |
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| 136 | } |
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| 137 | |
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| 138 | static bool_t |
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| 139 | xdrstdio_getbytes(xdrs, addr, len) |
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| 140 | XDR *xdrs; |
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| 141 | char *addr; |
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| 142 | u_int len; |
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| 143 | { |
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| 144 | |
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| 145 | if ((len != 0) && (fread(addr, (size_t)len, 1, (FILE *)xdrs->x_private) != 1)) |
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| 146 | return (FALSE); |
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| 147 | return (TRUE); |
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| 148 | } |
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| 149 | |
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| 150 | static bool_t |
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| 151 | xdrstdio_putbytes(xdrs, addr, len) |
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| 152 | XDR *xdrs; |
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| 153 | const char *addr; |
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| 154 | u_int len; |
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| 155 | { |
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| 156 | |
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| 157 | if ((len != 0) && (fwrite(addr, (size_t)len, 1, |
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| 158 | (FILE *)xdrs->x_private) != 1)) |
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| 159 | return (FALSE); |
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| 160 | return (TRUE); |
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| 161 | } |
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| 162 | |
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| 163 | static u_int |
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| 164 | xdrstdio_getpos(xdrs) |
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| 165 | XDR *xdrs; |
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| 166 | { |
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| 167 | |
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| 168 | return ((u_int) ftell((FILE *)xdrs->x_private)); |
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| 169 | } |
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| 170 | |
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| 171 | static bool_t |
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| 172 | xdrstdio_setpos(xdrs, pos) |
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| 173 | XDR *xdrs; |
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| 174 | u_int pos; |
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| 175 | { |
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| 176 | |
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| 177 | return ((fseek((FILE *)xdrs->x_private, (long)pos, 0) < 0) ? |
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| 178 | FALSE : TRUE); |
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| 179 | } |
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| 180 | |
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| 181 | /* ARGSUSED */ |
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| 182 | static int32_t * |
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| 183 | xdrstdio_inline(xdrs, len) |
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| 184 | XDR *xdrs; |
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| 185 | u_int len; |
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| 186 | { |
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| 187 | |
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| 188 | /* |
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| 189 | * Must do some work to implement this: must insure |
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| 190 | * enough data in the underlying stdio buffer, |
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| 191 | * that the buffer is aligned so that we can indirect through a |
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| 192 | * long *, and stuff this pointer in xdrs->x_buf. Doing |
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| 193 | * a fread or fwrite to a scratch buffer would defeat |
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| 194 | * most of the gains to be had here and require storage |
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| 195 | * management on this buffer, so we don't do this. |
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| 196 | */ |
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| 197 | return (NULL); |
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| 198 | } |
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