Return to xdr_mem.c CVS log

Up to [CSRG BSD Unix] / 43BSD / contrib / sunrpc

Annotation of 43BSD/contrib/sunrpc/xdr_mem.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
        !             3:  * unrestricted use provided that this legend is included on all tape
        !             4:  * media and as a part of the software program in whole or part.  Users
        !             5:  * may copy or modify Sun RPC without charge, but are not authorized
        !             6:  * to license or distribute it to anyone else except as part of a product or
        !             7:  * program developed by the user.
        !             8:  * 
        !             9:  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
        !            10:  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
        !            11:  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
        !            12:  * 
        !            13:  * Sun RPC is provided with no support and without any obligation on the
        !            14:  * part of Sun Microsystems, Inc. to assist in its use, correction,
        !            15:  * modification or enhancement.
        !            16:  * 
        !            17:  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
        !            18:  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
        !            19:  * OR ANY PART THEREOF.
        !            20:  * 
        !            21:  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
        !            22:  * or profits or other special, indirect and consequential damages, even if
        !            23:  * Sun has been advised of the possibility of such damages.
        !            24:  * 
        !            25:  * Sun Microsystems, Inc.
        !            26:  * 2550 Garcia Avenue
        !            27:  * Mountain View, California  94043
        !            28:  */
        !            29: #ifndef lint
        !            30: static char sccsid[] = "@(#)xdr_mem.c 1.4 85/03/14 Copyr 1984 Sun Micro";
        !            31: #endif
        !            32: 
        !            33: /*
        !            34:  * xdr_mem.h, XDR implementation using memory buffers.
        !            35:  *
        !            36:  * Copyright (C) 1984, Sun Microsystems, Inc.
        !            37:  *
        !            38:  * If you have some data to be interpreted as external data representation
        !            39:  * or to be converted to external data representation in a memory buffer,
        !            40:  * then this is the package for you.
        !            41:  *
        !            42:  */
        !            43: 
        !            44: #include "types.h"
        !            45: #include "xdr.h"
        !            46: #include <netinet/in.h>
        !            47: 
        !            48: static bool_t  xdrmem_getlong();
        !            49: static bool_t  xdrmem_putlong();
        !            50: static bool_t  xdrmem_getbytes();
        !            51: static bool_t  xdrmem_putbytes();
        !            52: static u_int   xdrmem_getpos();
        !            53: static bool_t  xdrmem_setpos();
        !            54: static long *  xdrmem_inline();
        !            55: static void    xdrmem_destroy();
        !            56: 
        !            57: static struct  xdr_ops xdrmem_ops = {
        !            58:        xdrmem_getlong,
        !            59:        xdrmem_putlong,
        !            60:        xdrmem_getbytes,
        !            61:        xdrmem_putbytes,
        !            62:        xdrmem_getpos,
        !            63:        xdrmem_setpos,
        !            64:        xdrmem_inline,
        !            65:        xdrmem_destroy
        !            66: };
        !            67: 
        !            68: /*
        !            69:  * The procedure xdrmem_create initializes a stream descriptor for a
        !            70:  * memory buffer.  
        !            71:  */
        !            72: void
        !            73: xdrmem_create(xdrs, addr, size, op)
        !            74:        register XDR *xdrs;
        !            75:        caddr_t addr;
        !            76:        u_int size;
        !            77:        enum xdr_op op;
        !            78: {
        !            79: 
        !            80:        xdrs->x_op = op;
        !            81:        xdrs->x_ops = &xdrmem_ops;
        !            82:        xdrs->x_private = xdrs->x_base = addr;
        !            83:        xdrs->x_handy = size;
        !            84: }
        !            85: 
        !            86: static void
        !            87: xdrmem_destroy(/*xdrs*/)
        !            88:        /*XDR *xdrs;*/
        !            89: {
        !            90: }
        !            91: 
        !            92: static bool_t
        !            93: xdrmem_getlong(xdrs, lp)
        !            94:        register XDR *xdrs;
        !            95:        long *lp;
        !            96: {
        !            97: 
        !            98:        if ((xdrs->x_handy -= sizeof(long)) < 0)
        !            99:                return (FALSE);
        !           100:        *lp = ntohl(*((long *)(xdrs->x_private)));
        !           101:        xdrs->x_private += sizeof(long);
        !           102:        return (TRUE);
        !           103: }
        !           104: 
        !           105: static bool_t
        !           106: xdrmem_putlong(xdrs, lp)
        !           107:        register XDR *xdrs;
        !           108:        long *lp;
        !           109: {
        !           110: 
        !           111:        if ((xdrs->x_handy -= sizeof(long)) < 0)
        !           112:                return (FALSE);
        !           113:        *(long *)xdrs->x_private = htonl(*lp);
        !           114:        xdrs->x_private += sizeof(long);
        !           115:        return (TRUE);
        !           116: }
        !           117: 
        !           118: static bool_t
        !           119: xdrmem_getbytes(xdrs, addr, len)
        !           120:        register XDR *xdrs;
        !           121:        caddr_t addr;
        !           122:        register u_int len;
        !           123: {
        !           124: 
        !           125:        if ((xdrs->x_handy -= len) < 0)
        !           126:                return (FALSE);
        !           127:        bcopy(xdrs->x_private, addr, len);
        !           128:        xdrs->x_private += len;
        !           129:        return (TRUE);
        !           130: }
        !           131: 
        !           132: static bool_t
        !           133: xdrmem_putbytes(xdrs, addr, len)
        !           134:        register XDR *xdrs;
        !           135:        caddr_t addr;
        !           136:        register u_int len;
        !           137: {
        !           138: 
        !           139:        if ((xdrs->x_handy -= len) < 0)
        !           140:                return (FALSE);
        !           141:        bcopy(addr, xdrs->x_private, len);
        !           142:        xdrs->x_private += len;
        !           143:        return (TRUE);
        !           144: }
        !           145: 
        !           146: static u_int
        !           147: xdrmem_getpos(xdrs)
        !           148:        register XDR *xdrs;
        !           149: {
        !           150: 
        !           151:        return ((u_int)xdrs->x_private - (u_int)xdrs->x_base);
        !           152: }
        !           153: 
        !           154: static bool_t
        !           155: xdrmem_setpos(xdrs, pos)
        !           156:        register XDR *xdrs;
        !           157:        u_int pos;
        !           158: {
        !           159:        register caddr_t newaddr = xdrs->x_base + pos;
        !           160:        register caddr_t lastaddr = xdrs->x_private + xdrs->x_handy;
        !           161: 
        !           162:        if ((long)newaddr > (long)lastaddr)
        !           163:                return (FALSE);
        !           164:        xdrs->x_private = newaddr;
        !           165:        xdrs->x_handy = (int)lastaddr - (int)newaddr;
        !           166:        return (TRUE);
        !           167: }
        !           168: 
        !           169: static long *
        !           170: xdrmem_inline(xdrs, len)
        !           171:        register XDR *xdrs;
        !           172:        int len;
        !           173: {
        !           174:        long *buf = 0;
        !           175: 
        !           176:        if (xdrs->x_handy >= len) {
        !           177:                xdrs->x_handy -= len;
        !           178:                buf = (long *) xdrs->x_private;
        !           179:                xdrs->x_private += len;
        !           180:        }
        !           181:        return (buf);
        !           182: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.