diff options
| author | svn2git <svn2git@FreeBSD.org> | 1994-05-01 08:00:00 +0000 | 
|---|---|---|
| committer | svn2git <svn2git@FreeBSD.org> | 1994-05-01 08:00:00 +0000 | 
| commit | a16f65c7d117419bd266c28a1901ef129a337569 (patch) | |
| tree | 2626602f66dc3551e7a7c7bc9ad763c3bc7ab40a /lib/librpc/rpc/xdr.c | |
| parent | 8503f4f13f77abf7adc8f7e329c6f9c1d52b6a20 (diff) | |
Diffstat (limited to 'lib/librpc/rpc/xdr.c')
| -rw-r--r-- | lib/librpc/rpc/xdr.c | 578 | 
1 files changed, 0 insertions, 578 deletions
| diff --git a/lib/librpc/rpc/xdr.c b/lib/librpc/rpc/xdr.c deleted file mode 100644 index 35e1eac7d162..000000000000 --- a/lib/librpc/rpc/xdr.c +++ /dev/null @@ -1,578 +0,0 @@ -/* - * 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 = "$Id: xdr.c,v 1.2 1993/09/14 17:29:19 jtc 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 <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; -{ - -#ifdef lint -	(void) (xdr_short(xdrs, (short *)ip)); -	return (xdr_long(xdrs, (long *)ip)); -#else -	if (sizeof (int) == sizeof (long)) { -		return (xdr_long(xdrs, (long *)ip)); -	} else { -		return (xdr_short(xdrs, (short *)ip)); -	} -#endif -} - -/* - * XDR unsigned integers - */ -bool_t -xdr_u_int(xdrs, up) -	XDR *xdrs; -	u_int *up; -{ - -#ifdef lint -	(void) (xdr_short(xdrs, (short *)up)); -	return (xdr_u_long(xdrs, (u_long *)up)); -#else -	if (sizeof (u_int) == sizeof (u_long)) { -		return (xdr_u_long(xdrs, (u_long *)up)); -	} else { -		return (xdr_short(xdrs, (short *)up)); -	} -#endif -} - -/* - * 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; -{ - -	if (xdrs->x_op == XDR_ENCODE) -		return (XDR_PUTLONG(xdrs, lp)); - -	if (xdrs->x_op == XDR_DECODE) -		return (XDR_GETLONG(xdrs, lp)); - -	if (xdrs->x_op == 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; -{ - -	if (xdrs->x_op == XDR_DECODE) -		return (XDR_GETLONG(xdrs, (long *)ulp)); -	if (xdrs->x_op == XDR_ENCODE) -		return (XDR_PUTLONG(xdrs, (long *)ulp)); -	if (xdrs->x_op == 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, &l)); - -	case XDR_DECODE: -		if (!XDR_GETLONG(xdrs, &l)) { -			return (FALSE); -		} -		*usp = (u_short) 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; -	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 (short)) { -		return (xdr_short(xdrs, (short *)ep)); -	} else { -		return (FALSE); -	} -#else -	(void) (xdr_short(xdrs, (short *)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 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, 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; -	} -	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; -{ -	if (xdr_string(xdrs, cpp, LASTUNSIGNED)) { -		return (TRUE); -	} -	return (FALSE); -} | 
