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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [librpc/] [src/] [xdr/] [xdr.c] - Blame information for rev 1765

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/*
 * 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(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)xdr.c 1.35 87/08/12";*/
/*static char *sccsid = "from: @(#)xdr.c        2.1 88/07/29 4.0 RPCSRC";*/
static char *rcsid = "$FreeBSD: src/lib/libc/xdr/xdr.c,v 1.9 1999/08/28 00:02:55 peter Exp $";
#endif
 
/*
 * xdr.c, Generic XDR routines implementation.
 *
 * Copyright (C) 1986, Sun Microsystems, Inc.
 *
 * These are the "generic" xdr routines used to serialize and de-serialize
 * most common data items.  See xdr.h for more info on the interface to
 * xdr.
 */
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include <rpc/types.h>
#include <rpc/xdr.h>
 
/*
 * constants specific to the xdr "protocol"
 */
#define XDR_FALSE       ((long) 0)
#define XDR_TRUE        ((long) 1)
#define LASTUNSIGNED    ((u_int) 0-1)
 
/*
 * for unit alignment
 */
static char xdr_zero[BYTES_PER_XDR_UNIT] = { 0, 0, 0, 0 };
 
/*
 * Free a data structure using XDR
 * Not a filter, but a convenient utility nonetheless
 */
void
xdr_free(proc, objp)
        xdrproc_t proc;
        char *objp;
{
        XDR x;
 
        x.x_op = XDR_FREE;
        (*proc)(&x, objp);
}
 
/*
 * XDR nothing
 */
bool_t
xdr_void(/* xdrs, addr */)
        /* XDR *xdrs; */
        /* caddr_t addr; */
{
 
        return (TRUE);
}
 
 
/*
 * XDR integers
 */
bool_t
xdr_int(xdrs, ip)
        XDR *xdrs;
        int *ip;
{
        long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (long) *ip;
                return (XDR_PUTLONG(xdrs, &l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, &l)) {
                        return (FALSE);
                }
                *ip = (int) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR unsigned integers
 */
bool_t
xdr_u_int(xdrs, up)
        XDR *xdrs;
        u_int *up;
{
        u_long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (u_long) *up;
                return (XDR_PUTLONG(xdrs, (long *)&l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, (long *)&l)) {
                        return (FALSE);
                }
                *up = (u_int) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
 
/*
 * XDR long integers
 * same as xdr_u_long - open coded to save a proc call!
 */
bool_t
xdr_long(xdrs, lp)
        register XDR *xdrs;
        long *lp;
{
        switch (xdrs->x_op) {
        case XDR_ENCODE:
                return (XDR_PUTLONG(xdrs, lp));
        case XDR_DECODE:
                return (XDR_GETLONG(xdrs, lp));
        case XDR_FREE:
                return (TRUE);
        }
 
        return (FALSE);
}
 
/*
 * XDR unsigned long integers
 * same as xdr_long - open coded to save a proc call!
 */
bool_t
xdr_u_long(xdrs, ulp)
        register XDR *xdrs;
        u_long *ulp;
{
        switch (xdrs->x_op) {
        case XDR_ENCODE:
                return (XDR_PUTLONG(xdrs, (long *)ulp));
        case XDR_DECODE:
                return (XDR_GETLONG(xdrs, (long *)ulp));
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
 
/*
 * XDR 32-bit integers
 * same as xdr_u_int32_t - open coded to save a proc call!
 */
bool_t
xdr_int32_t(xdrs, int32_p)
        register XDR *xdrs;
        int32_t *int32_p;
{
        long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (long) *int32_p;
                return (XDR_PUTLONG(xdrs, &l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, &l)) {
                        return (FALSE);
                }
                *int32_p = (int32_t) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR unsigned 32-bit integers
 * same as xdr_int32_t - open coded to save a proc call!
 */
bool_t
xdr_u_int32_t(xdrs, u_int32_p)
        register XDR *xdrs;
        u_int32_t *u_int32_p;
{
        u_long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (u_long) *u_int32_p;
                return (XDR_PUTLONG(xdrs, (long *)&l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, (long *)&l)) {
                        return (FALSE);
                }
                *u_int32_p = (u_int32_t) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR 64-bit integers
 */
bool_t
xdr_int64_t(xdrs, int64_p)
        register XDR *xdrs;
        int64_t *int64_p;
{
        int64_t x;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                return (xdr_opaque(xdrs, (caddr_t)int64_p, sizeof(int64_t)));
 
        case XDR_DECODE:
                if (!xdr_opaque(xdrs, (caddr_t)&x, sizeof x)) {
                        return (FALSE);
                }
                *int64_p = x;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR unsigned 64-bit integers
 */
bool_t
xdr_u_int64_t(xdrs, uint64_p)
        register XDR *xdrs;
        u_int64_t *uint64_p;
{
        u_int64_t x;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                return (xdr_opaque(xdrs, (caddr_t)uint64_p, sizeof(u_int64_t)));
 
        case XDR_DECODE:
                if (!xdr_opaque(xdrs, (caddr_t)&x, sizeof x)) {
                        return (FALSE);
                }
                *uint64_p = x;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
 
/*
 * XDR short integers
 */
bool_t
xdr_short(xdrs, sp)
        register XDR *xdrs;
        short *sp;
{
        long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (long) *sp;
                return (XDR_PUTLONG(xdrs, &l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, &l)) {
                        return (FALSE);
                }
                *sp = (short) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR unsigned short integers
 */
bool_t
xdr_u_short(xdrs, usp)
        register XDR *xdrs;
        u_short *usp;
{
        u_long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (u_long) *usp;
                return (XDR_PUTLONG(xdrs, (long *)&l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, (long *)&l)) {
                        return (FALSE);
                }
                *usp = (u_short) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
 
/*
 * XDR 16-bit integers
 */
bool_t
xdr_int16_t(xdrs, int16_p)
        register XDR *xdrs;
        int16_t *int16_p;
{
        long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (long) *int16_p;
                return (XDR_PUTLONG(xdrs, &l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, &l)) {
                        return (FALSE);
                }
                *int16_p = (int16_t) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR unsigned 16-bit integers
 */
bool_t
xdr_u_int16_t(xdrs, u_int16_p)
        register XDR *xdrs;
        u_int16_t *u_int16_p;
{
        u_long l;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                l = (u_long) *u_int16_p;
                return (XDR_PUTLONG(xdrs, (long *)&l));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, (long *)&l)) {
                        return (FALSE);
                }
                *u_int16_p = (u_int16_t) l;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
 
/*
 * XDR a char
 */
bool_t
xdr_char(xdrs, cp)
        XDR *xdrs;
        char *cp;
{
        int i;
 
        i = (*cp);
        if (!xdr_int(xdrs, &i)) {
                return (FALSE);
        }
        *cp = i;
        return (TRUE);
}
 
/*
 * XDR an unsigned char
 */
bool_t
xdr_u_char(xdrs, cp)
        XDR *xdrs;
        u_char *cp;
{
        u_int u;
 
        u = (*cp);
        if (!xdr_u_int(xdrs, &u)) {
                return (FALSE);
        }
        *cp = u;
        return (TRUE);
}
 
/*
 * XDR booleans
 */
bool_t
xdr_bool(xdrs, bp)
        register XDR *xdrs;
        bool_t *bp;
{
        long lb;
 
        switch (xdrs->x_op) {
 
        case XDR_ENCODE:
                lb = *bp ? XDR_TRUE : XDR_FALSE;
                return (XDR_PUTLONG(xdrs, &lb));
 
        case XDR_DECODE:
                if (!XDR_GETLONG(xdrs, &lb)) {
                        return (FALSE);
                }
                *bp = (lb == XDR_FALSE) ? FALSE : TRUE;
                return (TRUE);
 
        case XDR_FREE:
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * XDR enumerations
 */
bool_t
xdr_enum(xdrs, ep)
        XDR *xdrs;
        enum_t *ep;
{
#ifndef lint
        enum sizecheck { SIZEVAL };     /* used to find the size of an enum */
 
        /*
         * enums are treated as ints
         */
        if (sizeof (enum sizecheck) == sizeof (long)) {
                return (xdr_long(xdrs, (long *)ep));
        } else if (sizeof (enum sizecheck) == sizeof (int)) {
                return (xdr_int(xdrs, (int *)ep));
        } else if (sizeof (enum sizecheck) == sizeof (short)) {
                return (xdr_short(xdrs, (short *)ep));
        } else {
                return (FALSE);
        }
#else
        (void) (xdr_short(xdrs, (short *)ep));
        (void) (xdr_int(xdrs, (int *)ep));
        return (xdr_long(xdrs, (long *)ep));
#endif
}
 
/*
 * XDR opaque data
 * Allows the specification of a fixed size sequence of opaque bytes.
 * cp points to the opaque object and cnt gives the byte length.
 */
bool_t
xdr_opaque(xdrs, cp, cnt)
        register XDR *xdrs;
        caddr_t cp;
        register u_int cnt;
{
        register u_int rndup;
        static int crud[BYTES_PER_XDR_UNIT];
 
        /*
         * if no data we are done
         */
        if (cnt == 0)
                return (TRUE);
 
        /*
         * round byte count to full xdr units
         */
        rndup = cnt % BYTES_PER_XDR_UNIT;
        if (rndup > 0)
                rndup = BYTES_PER_XDR_UNIT - rndup;
 
        if (xdrs->x_op == XDR_DECODE) {
                if (!XDR_GETBYTES(xdrs, cp, cnt)) {
                        return (FALSE);
                }
                if (rndup == 0)
                        return (TRUE);
                return (XDR_GETBYTES(xdrs, (caddr_t)crud, rndup));
        }
 
        if (xdrs->x_op == XDR_ENCODE) {
                if (!XDR_PUTBYTES(xdrs, cp, cnt)) {
                        return (FALSE);
                }
                if (rndup == 0)
                        return (TRUE);
                return (XDR_PUTBYTES(xdrs, xdr_zero, rndup));
        }
 
        if (xdrs->x_op == XDR_FREE) {
                return (TRUE);
        }
 
        return (FALSE);
}
 
/*
 * XDR counted bytes
 * *cpp is a pointer to the bytes, *sizep is the count.
 * If *cpp is NULL maxsize bytes are allocated
 */
bool_t
xdr_bytes(xdrs, cpp, sizep, maxsize)
        register XDR *xdrs;
        char **cpp;
        register u_int *sizep;
        u_int maxsize;
{
        register char *sp = *cpp;  /* sp is the actual string pointer */
        register u_int nodesize;
 
        /*
         * first deal with the length since xdr bytes are counted
         */
        if (! xdr_u_int(xdrs, sizep)) {
                return (FALSE);
        }
        nodesize = *sizep;
        if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE)) {
                return (FALSE);
        }
 
        /*
         * now deal with the actual bytes
         */
        switch (xdrs->x_op) {
 
        case XDR_DECODE:
                if (nodesize == 0) {
                        return (TRUE);
                }
                if (sp == NULL) {
                        *cpp = sp = (char *)mem_alloc(nodesize);
                }
                if (sp == NULL) {
                        (void) fprintf(stderr, "xdr_bytes: out of memory\n");
                        return (FALSE);
                }
                /* fall into ... */
 
        case XDR_ENCODE:
                return (xdr_opaque(xdrs, sp, nodesize));
 
        case XDR_FREE:
                if (sp != NULL) {
                        mem_free(sp, nodesize);
                        *cpp = NULL;
                }
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * Implemented here due to commonality of the object.
 */
bool_t
xdr_netobj(xdrs, np)
        XDR *xdrs;
        struct netobj *np;
{
 
        return (xdr_bytes(xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ));
}
 
/*
 * XDR a descriminated union
 * Support routine for discriminated unions.
 * You create an array of xdrdiscrim structures, terminated with
 * an entry with a null procedure pointer.  The routine gets
 * the discriminant value and then searches the array of xdrdiscrims
 * looking for that value.  It calls the procedure given in the xdrdiscrim
 * to handle the discriminant.  If there is no specific routine a default
 * routine may be called.
 * If there is no specific or default routine an error is returned.
 */
bool_t
xdr_union(xdrs, dscmp, unp, choices, dfault)
        register XDR *xdrs;
        enum_t *dscmp;          /* enum to decide which arm to work on */
        char *unp;              /* the union itself */
        struct xdr_discrim *choices;    /* [value, xdr proc] for each arm */
        xdrproc_t dfault;       /* default xdr routine */
{
        register enum_t dscm;
 
        /*
         * we deal with the discriminator;  it's an enum
         */
        if (! xdr_enum(xdrs, dscmp)) {
                return (FALSE);
        }
        dscm = *dscmp;
 
        /*
         * search choices for a value that matches the discriminator.
         * if we find one, execute the xdr routine for that value.
         */
        for (; choices->proc != NULL_xdrproc_t; choices++) {
                if (choices->value == dscm)
                        return ((*(choices->proc))(xdrs, unp, LASTUNSIGNED));
        }
 
        /*
         * no match - execute the default xdr routine if there is one
         */
        return ((dfault == NULL_xdrproc_t) ? FALSE :
            (*dfault)(xdrs, unp, LASTUNSIGNED));
}
 
 
/*
 * Non-portable xdr primitives.
 * Care should be taken when moving these routines to new architectures.
 */
 
 
/*
 * XDR null terminated ASCII strings
 * xdr_string deals with "C strings" - arrays of bytes that are
 * terminated by a NULL character.  The parameter cpp references a
 * pointer to storage; If the pointer is null, then the necessary
 * storage is allocated.  The last parameter is the max allowed length
 * of the string as specified by a protocol.
 */
bool_t
xdr_string(xdrs, cpp, maxsize)
        register XDR *xdrs;
        char **cpp;
        u_int maxsize;
{
        register char *sp = *cpp;  /* sp is the actual string pointer */
        u_int size;
        u_int nodesize;
 
        /*
         * first deal with the length since xdr strings are counted-strings
         */
        switch (xdrs->x_op) {
        case XDR_FREE:
                if (sp == NULL) {
                        return(TRUE);   /* already free */
                }
                /* fall through... */
        case XDR_ENCODE:
                size = strlen(sp);
                break;
        case XDR_DECODE:  /* to avoid warning */
                break;
        }
        if (! xdr_u_int(xdrs, &size)) {
                return (FALSE);
        }
        if (size > maxsize) {
                return (FALSE);
        }
        nodesize = size + 1;
 
        /*
         * now deal with the actual bytes
         */
        switch (xdrs->x_op) {
 
        case XDR_DECODE:
                if (nodesize == 0) {
                        return (TRUE);
                }
                if (sp == NULL)
                        *cpp = sp = (char *)mem_alloc(nodesize);
                if (sp == NULL) {
                        (void) fprintf(stderr, "xdr_string: out of memory\n");
                        return (FALSE);
                }
                sp[size] = 0;
                /* fall into ... */
 
        case XDR_ENCODE:
                return (xdr_opaque(xdrs, sp, size));
 
        case XDR_FREE:
                mem_free(sp, nodesize);
                *cpp = NULL;
                return (TRUE);
        }
        return (FALSE);
}
 
/*
 * Wrapper for xdr_string that can be called directly from
 * routines like clnt_call
 */
bool_t
xdr_wrapstring(xdrs, cpp)
        XDR *xdrs;
        char **cpp;
{
        return xdr_string(xdrs, cpp, LASTUNSIGNED);
}

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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [librpc/] [src/] [xdr/] [xdr.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1026	ivang	`/*`
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
30			`#if defined(LIBC_SCCS) && !defined(lint)`
31			`/static char sccsid = "from: @(#)xdr.c 1.35 87/08/12";*/`
32			`/static char sccsid = "from: @(#)xdr.c 2.1 88/07/29 4.0 RPCSRC";*/`
33			`static char *rcsid = "$FreeBSD: src/lib/libc/xdr/xdr.c,v 1.9 1999/08/28 00:02:55 peter Exp $";`
34			`#endif`
35
36			`/*`
37			`* xdr.c, Generic XDR routines implementation.`
38			`*`
39			`* Copyright (C) 1986, Sun Microsystems, Inc.`
40			`*`
41			`* These are the "generic" xdr routines used to serialize and de-serialize`
42			`* most common data items. See xdr.h for more info on the interface to`
43			`* xdr.`
44			`*/`
45
46			`#include <stdio.h>`
47			`#include <stdlib.h>`
48			`#include <string.h>`
49
50			`#include <rpc/types.h>`
51			`#include <rpc/xdr.h>`
52
53			`/*`
54			`* constants specific to the xdr "protocol"`
55			`*/`
56			`#define XDR_FALSE ((long) 0)`
57			`#define XDR_TRUE ((long) 1)`
58			`#define LASTUNSIGNED ((u_int) 0-1)`
59
60			`/*`
61			`* for unit alignment`
62			`*/`
63			`static char xdr_zero[BYTES_PER_XDR_UNIT] = { 0, 0, 0, 0 };`
64
65			`/*`
66			`* Free a data structure using XDR`
67			`* Not a filter, but a convenient utility nonetheless`
68			`*/`
69			`void`
70			`xdr_free(proc, objp)`
71			`xdrproc_t proc;`
72			`char *objp;`
73			`{`
74			`XDR x;`
75
76			`x.x_op = XDR_FREE;`
77			`(*proc)(&x, objp);`
78			`}`
79
80			`/*`
81			`* XDR nothing`
82			`*/`
83			`bool_t`
84			`xdr_void(/* xdrs, addr */)`
85			`/* XDR xdrs; /`
86			`/* caddr_t addr; */`
87			`{`
88
89			`return (TRUE);`
90			`}`
91
92
93			`/*`
94			`* XDR integers`
95			`*/`
96			`bool_t`
97			`xdr_int(xdrs, ip)`
98			`XDR *xdrs;`
99			`int *ip;`
100			`{`
101			`long l;`
102
103			`switch (xdrs->x_op) {`
104
105			`case XDR_ENCODE:`
106			`l = (long) *ip;`
107			`return (XDR_PUTLONG(xdrs, &l));`
108
109			`case XDR_DECODE:`
110			`if (!XDR_GETLONG(xdrs, &l)) {`
111			`return (FALSE);`
112			`}`
113			`*ip = (int) l;`
114			`return (TRUE);`
115
116			`case XDR_FREE:`
117			`return (TRUE);`
118			`}`
119			`return (FALSE);`
120			`}`
121
122			`/*`
123			`* XDR unsigned integers`
124			`*/`
125			`bool_t`
126			`xdr_u_int(xdrs, up)`
127			`XDR *xdrs;`
128			`u_int *up;`
129			`{`
130			`u_long l;`
131
132			`switch (xdrs->x_op) {`
133
134			`case XDR_ENCODE:`
135			`l = (u_long) *up;`
136			`return (XDR_PUTLONG(xdrs, (long *)&l));`
137
138			`case XDR_DECODE:`
139			`if (!XDR_GETLONG(xdrs, (long *)&l)) {`
140			`return (FALSE);`
141			`}`
142			`*up = (u_int) l;`
143			`return (TRUE);`
144
145			`case XDR_FREE:`
146			`return (TRUE);`
147			`}`
148			`return (FALSE);`
149			`}`
150
151
152			`/*`
153			`* XDR long integers`
154			`* same as xdr_u_long - open coded to save a proc call!`
155			`*/`
156			`bool_t`
157			`xdr_long(xdrs, lp)`
158			`register XDR *xdrs;`
159			`long *lp;`
160			`{`
161			`switch (xdrs->x_op) {`
162			`case XDR_ENCODE:`
163			`return (XDR_PUTLONG(xdrs, lp));`
164			`case XDR_DECODE:`
165			`return (XDR_GETLONG(xdrs, lp));`
166			`case XDR_FREE:`
167			`return (TRUE);`
168			`}`
169
170			`return (FALSE);`
171			`}`
172
173			`/*`
174			`* XDR unsigned long integers`
175			`* same as xdr_long - open coded to save a proc call!`
176			`*/`
177			`bool_t`
178			`xdr_u_long(xdrs, ulp)`
179			`register XDR *xdrs;`
180			`u_long *ulp;`
181			`{`
182			`switch (xdrs->x_op) {`
183			`case XDR_ENCODE:`
184			`return (XDR_PUTLONG(xdrs, (long *)ulp));`
185			`case XDR_DECODE:`
186			`return (XDR_GETLONG(xdrs, (long *)ulp));`
187			`case XDR_FREE:`
188			`return (TRUE);`
189			`}`
190			`return (FALSE);`
191			`}`
192
193
194			`/*`
195			`* XDR 32-bit integers`
196			`* same as xdr_u_int32_t - open coded to save a proc call!`
197			`*/`
198			`bool_t`
199			`xdr_int32_t(xdrs, int32_p)`
200			`register XDR *xdrs;`
201			`int32_t *int32_p;`
202			`{`
203			`long l;`
204
205			`switch (xdrs->x_op) {`
206
207			`case XDR_ENCODE:`
208			`l = (long) *int32_p;`
209			`return (XDR_PUTLONG(xdrs, &l));`
210
211			`case XDR_DECODE:`
212			`if (!XDR_GETLONG(xdrs, &l)) {`
213			`return (FALSE);`
214			`}`
215			`*int32_p = (int32_t) l;`
216			`return (TRUE);`
217
218			`case XDR_FREE:`
219			`return (TRUE);`
220			`}`
221			`return (FALSE);`
222			`}`
223
224			`/*`
225			`* XDR unsigned 32-bit integers`
226			`* same as xdr_int32_t - open coded to save a proc call!`
227			`*/`
228			`bool_t`
229			`xdr_u_int32_t(xdrs, u_int32_p)`
230			`register XDR *xdrs;`
231			`u_int32_t *u_int32_p;`
232			`{`
233			`u_long l;`
234
235			`switch (xdrs->x_op) {`
236
237			`case XDR_ENCODE:`
238			`l = (u_long) *u_int32_p;`
239			`return (XDR_PUTLONG(xdrs, (long *)&l));`
240
241			`case XDR_DECODE:`
242			`if (!XDR_GETLONG(xdrs, (long *)&l)) {`
243			`return (FALSE);`
244			`}`
245			`*u_int32_p = (u_int32_t) l;`
246			`return (TRUE);`
247
248			`case XDR_FREE:`
249			`return (TRUE);`
250			`}`
251			`return (FALSE);`
252			`}`
253
254			`/*`
255			`* XDR 64-bit integers`
256			`*/`
257			`bool_t`
258			`xdr_int64_t(xdrs, int64_p)`
259			`register XDR *xdrs;`
260			`int64_t *int64_p;`
261			`{`
262			`int64_t x;`
263
264			`switch (xdrs->x_op) {`
265
266			`case XDR_ENCODE:`
267			`return (xdr_opaque(xdrs, (caddr_t)int64_p, sizeof(int64_t)));`
268
269			`case XDR_DECODE:`
270			`if (!xdr_opaque(xdrs, (caddr_t)&x, sizeof x)) {`
271			`return (FALSE);`
272			`}`
273			`*int64_p = x;`
274			`return (TRUE);`
275
276			`case XDR_FREE:`
277			`return (TRUE);`
278			`}`
279			`return (FALSE);`
280			`}`
281
282			`/*`
283			`* XDR unsigned 64-bit integers`
284			`*/`
285			`bool_t`
286			`xdr_u_int64_t(xdrs, uint64_p)`
287			`register XDR *xdrs;`
288			`u_int64_t *uint64_p;`
289			`{`
290			`u_int64_t x;`
291
292			`switch (xdrs->x_op) {`
293
294			`case XDR_ENCODE:`
295			`return (xdr_opaque(xdrs, (caddr_t)uint64_p, sizeof(u_int64_t)));`
296
297			`case XDR_DECODE:`
298			`if (!xdr_opaque(xdrs, (caddr_t)&x, sizeof x)) {`
299			`return (FALSE);`
300			`}`
301			`*uint64_p = x;`
302			`return (TRUE);`
303
304			`case XDR_FREE:`
305			`return (TRUE);`
306			`}`
307			`return (FALSE);`
308			`}`
309
310
311			`/*`
312			`* XDR short integers`
313			`*/`
314			`bool_t`
315			`xdr_short(xdrs, sp)`
316			`register XDR *xdrs;`
317			`short *sp;`
318			`{`
319			`long l;`
320
321			`switch (xdrs->x_op) {`
322
323			`case XDR_ENCODE:`
324			`l = (long) *sp;`
325			`return (XDR_PUTLONG(xdrs, &l));`
326
327			`case XDR_DECODE:`
328			`if (!XDR_GETLONG(xdrs, &l)) {`
329			`return (FALSE);`
330			`}`
331			`*sp = (short) l;`
332			`return (TRUE);`
333
334			`case XDR_FREE:`
335			`return (TRUE);`
336			`}`
337			`return (FALSE);`
338			`}`
339
340			`/*`
341			`* XDR unsigned short integers`
342			`*/`
343			`bool_t`
344			`xdr_u_short(xdrs, usp)`
345			`register XDR *xdrs;`
346			`u_short *usp;`
347			`{`
348			`u_long l;`
349
350			`switch (xdrs->x_op) {`
351
352			`case XDR_ENCODE:`
353			`l = (u_long) *usp;`
354			`return (XDR_PUTLONG(xdrs, (long *)&l));`
355
356			`case XDR_DECODE:`
357			`if (!XDR_GETLONG(xdrs, (long *)&l)) {`
358			`return (FALSE);`
359			`}`
360			`*usp = (u_short) l;`
361			`return (TRUE);`
362
363			`case XDR_FREE:`
364			`return (TRUE);`
365			`}`
366			`return (FALSE);`
367			`}`
368
369
370			`/*`
371			`* XDR 16-bit integers`
372			`*/`
373			`bool_t`
374			`xdr_int16_t(xdrs, int16_p)`
375			`register XDR *xdrs;`
376			`int16_t *int16_p;`
377			`{`
378			`long l;`
379
380			`switch (xdrs->x_op) {`
381
382			`case XDR_ENCODE:`
383			`l = (long) *int16_p;`
384			`return (XDR_PUTLONG(xdrs, &l));`
385
386			`case XDR_DECODE:`
387			`if (!XDR_GETLONG(xdrs, &l)) {`
388			`return (FALSE);`
389			`}`
390			`*int16_p = (int16_t) l;`
391			`return (TRUE);`
392
393			`case XDR_FREE:`
394			`return (TRUE);`
395			`}`
396			`return (FALSE);`
397			`}`
398
399			`/*`
400			`* XDR unsigned 16-bit integers`
401			`*/`
402			`bool_t`
403			`xdr_u_int16_t(xdrs, u_int16_p)`
404			`register XDR *xdrs;`
405			`u_int16_t *u_int16_p;`
406			`{`
407			`u_long l;`
408
409			`switch (xdrs->x_op) {`
410
411			`case XDR_ENCODE:`
412			`l = (u_long) *u_int16_p;`
413			`return (XDR_PUTLONG(xdrs, (long *)&l));`
414
415			`case XDR_DECODE:`
416			`if (!XDR_GETLONG(xdrs, (long *)&l)) {`
417			`return (FALSE);`
418			`}`
419			`*u_int16_p = (u_int16_t) l;`
420			`return (TRUE);`
421
422			`case XDR_FREE:`
423			`return (TRUE);`
424			`}`
425			`return (FALSE);`
426			`}`
427
428
429			`/*`
430			`* XDR a char`
431			`*/`
432			`bool_t`
433			`xdr_char(xdrs, cp)`
434			`XDR *xdrs;`
435			`char *cp;`
436			`{`
437			`int i;`
438
439			`i = (*cp);`
440			`if (!xdr_int(xdrs, &i)) {`
441			`return (FALSE);`
442			`}`
443			`*cp = i;`
444			`return (TRUE);`
445			`}`
446
447			`/*`
448			`* XDR an unsigned char`
449			`*/`
450			`bool_t`
451			`xdr_u_char(xdrs, cp)`
452			`XDR *xdrs;`
453			`u_char *cp;`
454			`{`
455			`u_int u;`
456
457			`u = (*cp);`
458			`if (!xdr_u_int(xdrs, &u)) {`
459			`return (FALSE);`
460			`}`
461			`*cp = u;`
462			`return (TRUE);`
463			`}`
464
465			`/*`
466			`* XDR booleans`
467			`*/`
468			`bool_t`
469			`xdr_bool(xdrs, bp)`
470			`register XDR *xdrs;`
471			`bool_t *bp;`
472			`{`
473			`long lb;`
474
475			`switch (xdrs->x_op) {`
476
477			`case XDR_ENCODE:`
478			`lb = *bp ? XDR_TRUE : XDR_FALSE;`
479			`return (XDR_PUTLONG(xdrs, &lb));`
480
481			`case XDR_DECODE:`
482			`if (!XDR_GETLONG(xdrs, &lb)) {`
483			`return (FALSE);`
484			`}`
485			`*bp = (lb == XDR_FALSE) ? FALSE : TRUE;`
486			`return (TRUE);`
487
488			`case XDR_FREE:`
489			`return (TRUE);`
490			`}`
491			`return (FALSE);`
492			`}`
493
494			`/*`
495			`* XDR enumerations`
496			`*/`
497			`bool_t`
498			`xdr_enum(xdrs, ep)`
499			`XDR *xdrs;`
500			`enum_t *ep;`
501			`{`
502			`#ifndef lint`
503			`enum sizecheck { SIZEVAL }; /* used to find the size of an enum */`
504
505			`/*`
506			`* enums are treated as ints`
507			`*/`
508			`if (sizeof (enum sizecheck) == sizeof (long)) {`
509			`return (xdr_long(xdrs, (long *)ep));`
510			`} else if (sizeof (enum sizecheck) == sizeof (int)) {`
511			`return (xdr_int(xdrs, (int *)ep));`
512			`} else if (sizeof (enum sizecheck) == sizeof (short)) {`
513			`return (xdr_short(xdrs, (short *)ep));`
514			`} else {`
515			`return (FALSE);`
516			`}`
517			`#else`
518			`(void) (xdr_short(xdrs, (short *)ep));`
519			`(void) (xdr_int(xdrs, (int *)ep));`
520			`return (xdr_long(xdrs, (long *)ep));`
521			`#endif`
522			`}`
523
524			`/*`
525			`* XDR opaque data`
526			`* Allows the specification of a fixed size sequence of opaque bytes.`
527			`* cp points to the opaque object and cnt gives the byte length.`
528			`*/`
529			`bool_t`
530			`xdr_opaque(xdrs, cp, cnt)`
531			`register XDR *xdrs;`
532			`caddr_t cp;`
533			`register u_int cnt;`
534			`{`
535			`register u_int rndup;`
536			`static int crud[BYTES_PER_XDR_UNIT];`
537
538			`/*`
539			`* if no data we are done`
540			`*/`
541			`if (cnt == 0)`
542			`return (TRUE);`
543
544			`/*`
545			`* round byte count to full xdr units`
546			`*/`
547			`rndup = cnt % BYTES_PER_XDR_UNIT;`
548			`if (rndup > 0)`
549			`rndup = BYTES_PER_XDR_UNIT - rndup;`
550
551			`if (xdrs->x_op == XDR_DECODE) {`
552			`if (!XDR_GETBYTES(xdrs, cp, cnt)) {`
553			`return (FALSE);`
554			`}`
555			`if (rndup == 0)`
556			`return (TRUE);`
557			`return (XDR_GETBYTES(xdrs, (caddr_t)crud, rndup));`
558			`}`
559
560			`if (xdrs->x_op == XDR_ENCODE) {`
561			`if (!XDR_PUTBYTES(xdrs, cp, cnt)) {`
562			`return (FALSE);`
563			`}`
564			`if (rndup == 0)`
565			`return (TRUE);`
566			`return (XDR_PUTBYTES(xdrs, xdr_zero, rndup));`
567			`}`
568
569			`if (xdrs->x_op == XDR_FREE) {`
570			`return (TRUE);`
571			`}`
572
573			`return (FALSE);`
574			`}`
575
576			`/*`
577			`* XDR counted bytes`
578			`* cpp is a pointer to the bytes, sizep is the count.`
579			`* If *cpp is NULL maxsize bytes are allocated`
580			`*/`
581			`bool_t`
582			`xdr_bytes(xdrs, cpp, sizep, maxsize)`
583			`register XDR *xdrs;`
584			`char **cpp;`
585			`register u_int *sizep;`
586			`u_int maxsize;`
587			`{`
588			`register char sp = cpp; /* sp is the actual string pointer */`
589			`register u_int nodesize;`
590
591			`/*`
592			`* first deal with the length since xdr bytes are counted`
593			`*/`
594			`if (! xdr_u_int(xdrs, sizep)) {`
595			`return (FALSE);`
596			`}`
597			`nodesize = *sizep;`
598			`if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE)) {`
599			`return (FALSE);`
600			`}`
601
602			`/*`
603			`* now deal with the actual bytes`
604			`*/`
605			`switch (xdrs->x_op) {`
606
607			`case XDR_DECODE:`
608			`if (nodesize == 0) {`
609			`return (TRUE);`
610			`}`
611			`if (sp == NULL) {`
612			`cpp = sp = (char )mem_alloc(nodesize);`
613			`}`
614			`if (sp == NULL) {`
615			`(void) fprintf(stderr, "xdr_bytes: out of memory\n");`
616			`return (FALSE);`
617			`}`
618			`/* fall into ... */`
619
620			`case XDR_ENCODE:`
621			`return (xdr_opaque(xdrs, sp, nodesize));`
622
623			`case XDR_FREE:`
624			`if (sp != NULL) {`
625			`mem_free(sp, nodesize);`
626			`*cpp = NULL;`
627			`}`
628			`return (TRUE);`
629			`}`
630			`return (FALSE);`
631			`}`
632
633			`/*`
634			`* Implemented here due to commonality of the object.`
635			`*/`
636			`bool_t`
637			`xdr_netobj(xdrs, np)`
638			`XDR *xdrs;`
639			`struct netobj *np;`
640			`{`
641
642			`return (xdr_bytes(xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ));`
643			`}`
644
645			`/*`
646			`* XDR a descriminated union`
647			`* Support routine for discriminated unions.`
648			`* You create an array of xdrdiscrim structures, terminated with`
649			`* an entry with a null procedure pointer. The routine gets`
650			`* the discriminant value and then searches the array of xdrdiscrims`
651			`* looking for that value. It calls the procedure given in the xdrdiscrim`
652			`* to handle the discriminant. If there is no specific routine a default`
653			`* routine may be called.`
654			`* If there is no specific or default routine an error is returned.`
655			`*/`
656			`bool_t`
657			`xdr_union(xdrs, dscmp, unp, choices, dfault)`
658			`register XDR *xdrs;`
659			`enum_t dscmp; / enum to decide which arm to work on */`
660			`char unp; / the union itself */`
661			`struct xdr_discrim choices; / [value, xdr proc] for each arm */`
662			`xdrproc_t dfault; /* default xdr routine */`
663			`{`
664			`register enum_t dscm;`
665
666			`/*`
667			`* we deal with the discriminator; it's an enum`
668			`*/`
669			`if (! xdr_enum(xdrs, dscmp)) {`
670			`return (FALSE);`
671			`}`
672			`dscm = *dscmp;`
673
674			`/*`
675			`* search choices for a value that matches the discriminator.`
676			`* if we find one, execute the xdr routine for that value.`
677			`*/`
678			`for (; choices->proc != NULL_xdrproc_t; choices++) {`
679			`if (choices->value == dscm)`
680			`return ((*(choices->proc))(xdrs, unp, LASTUNSIGNED));`
681			`}`
682
683			`/*`
684			`* no match - execute the default xdr routine if there is one`
685			`*/`
686			`return ((dfault == NULL_xdrproc_t) ? FALSE :`
687			`(*dfault)(xdrs, unp, LASTUNSIGNED));`
688			`}`
689
690
691			`/*`
692			`* Non-portable xdr primitives.`
693			`* Care should be taken when moving these routines to new architectures.`
694			`*/`
695
696
697			`/*`
698			`* XDR null terminated ASCII strings`
699			`* xdr_string deals with "C strings" - arrays of bytes that are`
700			`* terminated by a NULL character. The parameter cpp references a`
701			`* pointer to storage; If the pointer is null, then the necessary`
702			`* storage is allocated. The last parameter is the max allowed length`
703			`* of the string as specified by a protocol.`
704			`*/`
705			`bool_t`
706			`xdr_string(xdrs, cpp, maxsize)`
707			`register XDR *xdrs;`
708			`char **cpp;`
709			`u_int maxsize;`
710			`{`
711			`register char sp = cpp; /* sp is the actual string pointer */`
712			`u_int size;`
713			`u_int nodesize;`
714
715			`/*`
716			`* first deal with the length since xdr strings are counted-strings`
717			`*/`
718			`switch (xdrs->x_op) {`
719			`case XDR_FREE:`
720			`if (sp == NULL) {`
721			`return(TRUE); /* already free */`
722			`}`
723			`/* fall through... */`
724			`case XDR_ENCODE:`
725			`size = strlen(sp);`
726			`break;`
727			`case XDR_DECODE: /* to avoid warning */`
728			`break;`
729			`}`
730			`if (! xdr_u_int(xdrs, &size)) {`
731			`return (FALSE);`
732			`}`
733			`if (size > maxsize) {`
734			`return (FALSE);`
735			`}`
736			`nodesize = size + 1;`
737
738			`/*`
739			`* now deal with the actual bytes`
740			`*/`
741			`switch (xdrs->x_op) {`
742
743			`case XDR_DECODE:`
744			`if (nodesize == 0) {`
745			`return (TRUE);`
746			`}`
747			`if (sp == NULL)`
748			`cpp = sp = (char )mem_alloc(nodesize);`
749			`if (sp == NULL) {`
750			`(void) fprintf(stderr, "xdr_string: out of memory\n");`
751			`return (FALSE);`
752			`}`
753			`sp[size] = 0;`
754			`/* fall into ... */`
755
756			`case XDR_ENCODE:`
757			`return (xdr_opaque(xdrs, sp, size));`
758
759			`case XDR_FREE:`
760			`mem_free(sp, nodesize);`
761			`*cpp = NULL;`
762			`return (TRUE);`
763			`}`
764			`return (FALSE);`
765			`}`
766
767			`/*`
768			`* Wrapper for xdr_string that can be called directly from`
769			`* routines like clnt_call`
770			`*/`
771			`bool_t`
772			`xdr_wrapstring(xdrs, cpp)`
773			`XDR *xdrs;`
774			`char **cpp;`
775			`{`
776			`return xdr_string(xdrs, cpp, LASTUNSIGNED);`
777			`}`