759 lines
17 KiB
C
759 lines
17 KiB
C
/* $NetBSD: rpc_cout.c,v 1.24 2002/06/11 06:06:19 itojun Exp $ */
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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 or with the express written consent of
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* Sun Microsystems, Inc.
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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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#include <sys/cdefs.h>
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#if defined(__RCSID) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)rpc_cout.c 1.13 89/02/22 (C) 1987 SMI";
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#else
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__RCSID("$NetBSD: rpc_cout.c,v 1.24 2002/06/11 06:06:19 itojun Exp $");
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#endif
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#endif
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/*
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* rpc_cout.c, XDR routine outputter for the RPC protocol compiler
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*/
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "rpc_scan.h"
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#include "rpc_parse.h"
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#include "rpc_util.h"
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static int findtype __P((definition *, char *));
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static int undefined __P((char *));
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static void print_generic_header __P((char *, int));
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static void print_header __P((definition *));
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static void print_prog_header __P((proc_list *));
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static void print_trailer __P((void));
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static void print_ifopen __P((int, char *));
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static void print_ifarg __P((char *));
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static void print_ifsizeof __P((char *, char *));
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static void print_ifclose __P((int));
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static void print_ifstat __P((int, char *, char *, relation, char *, char *, char *));
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static void emit_enum __P((definition *));
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static void emit_program __P((definition *));
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static void emit_union __P((definition *));
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static void emit_struct __P((definition *));
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static void emit_typedef __P((definition *));
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static void print_stat __P((int, declaration *));
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/*
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* Emit the C-routine for the given definition
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*/
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void
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emit(def)
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definition *def;
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{
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if (def->def_kind == DEF_CONST) {
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return;
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}
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if (def->def_kind == DEF_PROGRAM) {
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emit_program(def);
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return;
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}
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if (def->def_kind == DEF_TYPEDEF) {
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/* now we need to handle declarations like struct typedef foo
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* foo; since we dont want this to be expanded into 2 calls to
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* xdr_foo */
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if (strcmp(def->def.ty.old_type, def->def_name) == 0)
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return;
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};
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print_header(def);
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switch (def->def_kind) {
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case DEF_UNION:
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emit_union(def);
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break;
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case DEF_ENUM:
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emit_enum(def);
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break;
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case DEF_STRUCT:
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emit_struct(def);
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break;
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case DEF_TYPEDEF:
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emit_typedef(def);
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break;
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case DEF_PROGRAM:
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case DEF_CONST:
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errx(1, "Internal error %s, %d: Case %d not handled",
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__FILE__, __LINE__, def->def_kind);
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break;
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}
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print_trailer();
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}
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static int
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findtype(def, type)
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definition *def;
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char *type;
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{
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if (def->def_kind == DEF_PROGRAM || def->def_kind == DEF_CONST) {
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return (0);
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} else {
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return (streq(def->def_name, type));
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}
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}
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static int
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undefined(type)
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char *type;
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{
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definition *def;
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def = (definition *) FINDVAL(defined, type, findtype);
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return (def == NULL);
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}
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static void
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print_generic_header(procname, pointerp)
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char *procname;
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int pointerp;
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{
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f_print(fout, "\n");
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f_print(fout, "bool_t\n");
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if (Cflag) {
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f_print(fout, "xdr_%s(", procname);
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f_print(fout, "XDR *xdrs, ");
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f_print(fout, "%s ", procname);
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if (pointerp)
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f_print(fout, "*");
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f_print(fout, "objp)\n{\n");
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} else {
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f_print(fout, "xdr_%s(xdrs, objp)\n", procname);
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f_print(fout, "\tXDR *xdrs;\n");
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f_print(fout, "\t%s ", procname);
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if (pointerp)
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f_print(fout, "*");
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f_print(fout, "objp;\n{\n");
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}
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}
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static void
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print_header(def)
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definition *def;
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{
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print_generic_header(def->def_name,
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def->def_kind != DEF_TYPEDEF ||
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!isvectordef(def->def.ty.old_type, def->def.ty.rel));
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}
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static void
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print_prog_header(plist)
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proc_list *plist;
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{
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print_generic_header(plist->args.argname, 1);
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}
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static void
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print_trailer()
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{
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f_print(fout, "\treturn (TRUE);\n");
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f_print(fout, "}\n");
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}
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static void
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print_ifopen(indent, name)
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int indent;
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char *name;
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{
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char _t_kludge[32];
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/*
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* XXX Solaris seems to strip the _t. No idea why.
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*/
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if (!strcmp(name, "rpcprog_t") || !strcmp(name, "rpcvers_t") ||
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!strcmp(name, "rpcproc_t") || !strcmp(name, "rpcprot_t") ||
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!strcmp(name, "rpcport_t") || !strcmp(name, "rpcpinline_t")) {
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strncpy(_t_kludge, name, strlen(name) - 2);
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name = _t_kludge;
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}
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tabify(fout, indent);
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f_print(fout, "if (!xdr_%s(xdrs", name);
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}
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static void
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print_ifarg(arg)
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char *arg;
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{
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f_print(fout, ", %s", arg);
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}
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static void
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print_ifsizeof(prefix, type)
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char *prefix;
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char *type;
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{
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if (streq(type, "bool")) {
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f_print(fout, ", (u_int)sizeof(bool_t), (xdrproc_t)xdr_bool");
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} else {
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f_print(fout, ", (u_int)sizeof(");
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if (undefined(type) && prefix) {
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f_print(fout, "%s ", prefix);
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}
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f_print(fout, "%s), (xdrproc_t)xdr_%s", type, type);
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}
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}
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static void
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print_ifclose(indent)
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int indent;
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{
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f_print(fout, "))\n");
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tabify(fout, indent);
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f_print(fout, "\treturn (FALSE);\n");
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}
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static void
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print_ifstat(indent, prefix, type, rel, amax, objname, name)
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int indent;
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char *prefix;
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char *type;
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relation rel;
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char *amax;
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char *objname;
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char *name;
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{
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char *alt = NULL;
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switch (rel) {
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case REL_POINTER:
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print_ifopen(indent, "pointer");
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print_ifarg("(char **)");
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f_print(fout, "%s", objname);
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print_ifsizeof(prefix, type);
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break;
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case REL_VECTOR:
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if (streq(type, "string")) {
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alt = "string";
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} else
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if (streq(type, "opaque")) {
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alt = "opaque";
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}
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if (alt) {
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print_ifopen(indent, alt);
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print_ifarg(objname);
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} else {
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print_ifopen(indent, "vector");
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print_ifarg("(char *)(void *)");
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f_print(fout, "%s", objname);
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}
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print_ifarg(amax);
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if (!alt) {
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print_ifsizeof(prefix, type);
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}
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break;
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case REL_ARRAY:
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if (streq(type, "string")) {
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alt = "string";
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} else
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if (streq(type, "opaque")) {
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alt = "bytes";
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}
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if (streq(type, "string")) {
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print_ifopen(indent, alt);
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print_ifarg(objname);
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} else {
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if (alt) {
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print_ifopen(indent, alt);
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} else {
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print_ifopen(indent, "array");
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}
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print_ifarg("(char **)");
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if (*objname == '&') {
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f_print(fout, "%s.%s_val, (u_int *)%s.%s_len",
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objname, name, objname, name);
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} else {
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f_print(fout, "&%s->%s_val, (u_int *)&%s->%s_len",
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objname, name, objname, name);
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}
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}
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print_ifarg(amax);
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if (!alt) {
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print_ifsizeof(prefix, type);
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}
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break;
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case REL_ALIAS:
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print_ifopen(indent, type);
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print_ifarg(objname);
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break;
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}
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print_ifclose(indent);
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}
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/* ARGSUSED */
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static void
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emit_enum(def)
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definition *def;
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{
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tabify(fout, 1);
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f_print(fout, "{\n");
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tabify(fout, 2);
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f_print(fout, "enum_t et = (enum_t)*objp;\n");
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print_ifopen(2, "enum");
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print_ifarg("&et");
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print_ifclose(2);
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tabify(fout, 2);
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f_print(fout, "*objp = (%s)et;\n", def->def_name);
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tabify(fout, 1);
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f_print(fout, "}\n");
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}
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static void
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emit_program(def)
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definition *def;
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{
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decl_list *dl;
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version_list *vlist;
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proc_list *plist;
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for (vlist = def->def.pr.versions; vlist != NULL; vlist = vlist->next)
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for (plist = vlist->procs; plist != NULL; plist = plist->next) {
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if (!newstyle || plist->arg_num < 2)
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continue; /* old style, or single
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* argument */
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print_prog_header(plist);
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for (dl = plist->args.decls; dl != NULL;
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dl = dl->next)
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print_stat(1, &dl->decl);
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print_trailer();
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}
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}
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static void
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emit_union(def)
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definition *def;
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{
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declaration *dflt;
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case_list *cl;
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declaration *cs;
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char *object;
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static const char vecformat[] = "objp->%s_u.%s";
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static const char format[] = "&objp->%s_u.%s";
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f_print(fout, "\n");
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print_stat(1, &def->def.un.enum_decl);
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f_print(fout, "\tswitch (objp->%s) {\n", def->def.un.enum_decl.name);
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for (cl = def->def.un.cases; cl != NULL; cl = cl->next) {
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f_print(fout, "\tcase %s:\n", cl->case_name);
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if (cl->contflag == 1) /* a continued case statement */
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continue;
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cs = &cl->case_decl;
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if (!streq(cs->type, "void")) {
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object = alloc(strlen(def->def_name) + strlen(format) +
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strlen(cs->name) + 1);
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if (isvectordef(cs->type, cs->rel)) {
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s_print(object, vecformat, def->def_name,
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cs->name);
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} else {
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s_print(object, format, def->def_name,
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cs->name);
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}
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print_ifstat(2, cs->prefix, cs->type, cs->rel,
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cs->array_max, object, cs->name);
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free(object);
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}
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f_print(fout, "\t\tbreak;\n");
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}
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dflt = def->def.un.default_decl;
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f_print(fout, "\tdefault:\n");
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if (dflt != NULL) {
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if (!streq(dflt->type, "void")) {
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object = alloc(strlen(def->def_name) + strlen(format) +
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strlen(dflt->name) + 1);
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if (isvectordef(dflt->type, dflt->rel)) {
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s_print(object, vecformat, def->def_name,
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dflt->name);
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} else {
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s_print(object, format, def->def_name,
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dflt->name);
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}
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print_ifstat(2, dflt->prefix, dflt->type, dflt->rel,
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dflt->array_max, object, dflt->name);
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free(object);
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}
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f_print(fout, "\t\tbreak;\n");
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} else {
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f_print(fout, "\t\treturn (FALSE);\n");
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}
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f_print(fout, "\t}\n");
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}
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static void
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emit_struct(def)
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definition *def;
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{
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decl_list *dl;
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int i, j, size, flag;
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decl_list *cur = NULL, *psav;
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bas_type *ptr;
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char *sizestr, *plus;
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char ptemp[256];
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int can_inline;
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if (doinline == 0) {
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f_print(fout, "\n");
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for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
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print_stat(1, &dl->decl);
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return;
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}
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size = 0;
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can_inline = 0;
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for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
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if ((dl->decl.prefix == NULL) &&
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((ptr = find_type(dl->decl.type)) != NULL) &&
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((dl->decl.rel == REL_ALIAS) || (dl->decl.rel == REL_VECTOR))) {
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if (dl->decl.rel == REL_ALIAS)
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size += ptr->length;
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else {
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can_inline = 1;
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break; /* can be inlined */
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};
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} else {
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if (size >= doinline) {
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can_inline = 1;
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break; /* can be inlined */
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}
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size = 0;
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}
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if (size > doinline)
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can_inline = 1;
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if (can_inline == 0) { /* can not inline, drop back to old mode */
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f_print(fout, "\n");
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for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
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print_stat(1, &dl->decl);
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return;
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};
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/* May cause lint to complain. but ... */
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f_print(fout, "\tint32_t *buf;\n");
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flag = PUT;
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f_print(fout, "\n\tif (xdrs->x_op == XDR_ENCODE) {\n");
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for (j = 0; j < 2; j++) {
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i = 0;
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size = 0;
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sizestr = NULL;
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for (dl = def->def.st.decls; dl != NULL; dl = dl->next) { /* xxx */
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/* now walk down the list and check for basic types */
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if ((dl->decl.prefix == NULL) && ((ptr = find_type(dl->decl.type)) != NULL) && ((dl->decl.rel == REL_ALIAS) || (dl->decl.rel == REL_VECTOR))) {
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if (i == 0)
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cur = dl;
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i++;
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if (dl->decl.rel == REL_ALIAS)
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size += ptr->length;
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else {
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/* this is required to handle arrays */
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if (sizestr == NULL)
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plus = "";
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else
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plus = " + ";
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if (ptr->length != 1)
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s_print(ptemp, "%s%s * %d", plus, dl->decl.array_max, ptr->length);
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else
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s_print(ptemp, "%s%s", plus, dl->decl.array_max);
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/* now concatenate to sizestr !!!! */
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if (sizestr == NULL)
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sizestr = strdup(ptemp);
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else {
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sizestr = (char *) realloc(sizestr, strlen(sizestr) + strlen(ptemp) + 1);
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if (sizestr == NULL) {
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f_print(stderr, "Fatal error : no memory\n");
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crash();
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};
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sizestr = strcat(sizestr, ptemp); /* build up length of
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* array */
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}
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}
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} else {
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if (i > 0) {
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if (sizestr == NULL && size < doinline) {
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/* don't expand into inline
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* code if size < doinline */
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while (cur != dl) {
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print_stat(2, &cur->decl);
|
|
cur = cur->next;
|
|
}
|
|
} else {
|
|
|
|
|
|
|
|
/* were already looking at a
|
|
* xdr_inlineable structure */
|
|
if (sizestr == NULL)
|
|
f_print(fout, "\t\tbuf = (int32_t *)XDR_INLINE(xdrs, %d * BYTES_PER_XDR_UNIT);\n",
|
|
size);
|
|
else
|
|
if (size == 0)
|
|
f_print(fout,
|
|
"\t\tbuf = (int32_t *)XDR_INLINE(xdrs, %s * BYTES_PER_XDR_UNIT);\n",
|
|
sizestr);
|
|
else
|
|
f_print(fout,
|
|
"\t\tbuf = (int32_t *)XDR_INLINE(xdrs, (%d + %s) * BYTES_PER_XDR_UNIT);\n",
|
|
size, sizestr);
|
|
|
|
f_print(fout, "\t\tif (buf == NULL) {\n");
|
|
|
|
psav = cur;
|
|
while (cur != dl) {
|
|
print_stat(3, &cur->decl);
|
|
cur = cur->next;
|
|
}
|
|
|
|
f_print(fout, "\t\t} else {\n");
|
|
|
|
cur = psav;
|
|
while (cur != dl) {
|
|
emit_inline(&cur->decl, flag);
|
|
cur = cur->next;
|
|
}
|
|
|
|
f_print(fout, "\t\t}\n");
|
|
}
|
|
}
|
|
size = 0;
|
|
i = 0;
|
|
sizestr = NULL;
|
|
print_stat(2, &dl->decl);
|
|
}
|
|
|
|
}
|
|
if (i > 0) {
|
|
if (sizestr == NULL && size < doinline) {
|
|
/* don't expand into inline code if size <
|
|
* doinline */
|
|
while (cur != dl) {
|
|
print_stat(2, &cur->decl);
|
|
cur = cur->next;
|
|
}
|
|
} else {
|
|
|
|
/* were already looking at a xdr_inlineable
|
|
* structure */
|
|
if (sizestr == NULL)
|
|
f_print(fout, "\t\tbuf = (int32_t *)XDR_INLINE(xdrs, %d * BYTES_PER_XDR_UNIT);\n",
|
|
size);
|
|
else
|
|
if (size == 0)
|
|
f_print(fout,
|
|
"\t\tbuf = (int32_t *)XDR_INLINE(xdrs, %s * BYTES_PER_XDR_UNIT);\n",
|
|
sizestr);
|
|
else
|
|
f_print(fout,
|
|
"\t\tbuf = (int32_t *)XDR_INLINE(xdrs, (%d + %s) * BYTES_PER_XDR_UNIT);\n",
|
|
size, sizestr);
|
|
|
|
f_print(fout, "\t\tif (buf == NULL) {\n");
|
|
|
|
psav = cur;
|
|
while (cur != NULL) {
|
|
print_stat(3, &cur->decl);
|
|
cur = cur->next;
|
|
}
|
|
f_print(fout, "\t\t} else {\n");
|
|
|
|
cur = psav;
|
|
while (cur != dl) {
|
|
emit_inline(&cur->decl, flag);
|
|
cur = cur->next;
|
|
}
|
|
|
|
f_print(fout, "\t\t}\n");
|
|
|
|
}
|
|
}
|
|
if (flag == PUT) {
|
|
flag = GET;
|
|
f_print(fout, "\t} else if (xdrs->x_op == XDR_DECODE) {\n");
|
|
}
|
|
}
|
|
|
|
f_print(fout, "\t} else {\n");
|
|
|
|
/* now take care of XDR_FREE case */
|
|
|
|
for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
|
|
print_stat(2, &dl->decl);
|
|
|
|
f_print(fout, "\t}\n");
|
|
}
|
|
|
|
static void
|
|
emit_typedef(def)
|
|
definition *def;
|
|
{
|
|
char *prefix = def->def.ty.old_prefix;
|
|
char *type = def->def.ty.old_type;
|
|
char *amax = def->def.ty.array_max;
|
|
relation rel = def->def.ty.rel;
|
|
|
|
f_print(fout, "\n");
|
|
print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
|
|
}
|
|
|
|
static void
|
|
print_stat(indent, dec)
|
|
declaration *dec;
|
|
int indent;
|
|
{
|
|
char *prefix = dec->prefix;
|
|
char *type = dec->type;
|
|
char *amax = dec->array_max;
|
|
relation rel = dec->rel;
|
|
char name[256];
|
|
|
|
if (isvectordef(type, rel)) {
|
|
s_print(name, "objp->%s", dec->name);
|
|
} else {
|
|
s_print(name, "&objp->%s", dec->name);
|
|
}
|
|
print_ifstat(indent, prefix, type, rel, amax, name, dec->name);
|
|
}
|
|
|
|
|
|
void
|
|
emit_inline(decl, flag)
|
|
declaration *decl;
|
|
int flag;
|
|
{
|
|
|
|
/*check whether an array or not */
|
|
|
|
switch (decl->rel) {
|
|
case REL_ALIAS:
|
|
emit_single_in_line(decl, flag, REL_ALIAS);
|
|
break;
|
|
case REL_VECTOR:
|
|
f_print(fout, "\t\t\t{\n");
|
|
f_print(fout, "\t\t\t\tint i;\n");
|
|
f_print(fout, "\t\t\t\t%s *genp;\n", decl->type);
|
|
f_print(fout, "\n");
|
|
f_print(fout, "\t\t\t\tfor (i = 0, genp = objp->%s;\n",
|
|
decl->name);
|
|
f_print(fout, "\t\t\t\t i < %s; i++) {\n\t\t",
|
|
decl->array_max);
|
|
emit_single_in_line(decl, flag, REL_VECTOR);
|
|
f_print(fout, "\t\t\t\t}\n\t\t\t}\n");
|
|
break;
|
|
case REL_ARRAY:
|
|
case REL_POINTER:
|
|
errx(1, "Internal error %s, %d: Case %d not handled",
|
|
__FILE__, __LINE__, decl->rel);
|
|
}
|
|
}
|
|
|
|
void
|
|
emit_single_in_line(decl, flag, rel)
|
|
declaration *decl;
|
|
int flag;
|
|
relation rel;
|
|
{
|
|
char *upp_case;
|
|
int freed = 0;
|
|
|
|
if (flag == PUT)
|
|
f_print(fout, "\t\t\tIXDR_PUT_");
|
|
else
|
|
if (rel == REL_ALIAS)
|
|
f_print(fout, "\t\t\tobjp->%s = IXDR_GET_", decl->name);
|
|
else
|
|
f_print(fout, "\t\t\t*genp++ = IXDR_GET_");
|
|
|
|
upp_case = upcase(decl->type);
|
|
|
|
/* hack - XX */
|
|
if (strcmp(upp_case, "INT") == 0) {
|
|
free(upp_case);
|
|
freed = 1;
|
|
upp_case = "INT32";
|
|
}
|
|
if (strcmp(upp_case, "U_INT") == 0) {
|
|
free(upp_case);
|
|
freed = 1;
|
|
upp_case = "U_INT32";
|
|
}
|
|
if (flag == PUT) {
|
|
if (rel == REL_ALIAS)
|
|
f_print(fout, "%s(buf, objp->%s);\n", upp_case, decl->name);
|
|
else
|
|
f_print(fout, "%s(buf, *genp++);\n", upp_case);
|
|
|
|
} else
|
|
f_print(fout, "%s(buf);\n", upp_case);
|
|
if (!freed)
|
|
free(upp_case);
|
|
|
|
}
|
|
|
|
|
|
char *
|
|
upcase(str)
|
|
char *str;
|
|
{
|
|
char *ptr, *hptr;
|
|
|
|
|
|
ptr = (char *) malloc(strlen(str) + 1);
|
|
if (ptr == (char *) NULL) {
|
|
f_print(stderr, "malloc failed\n");
|
|
exit(1);
|
|
};
|
|
|
|
hptr = ptr;
|
|
while (*str != '\0')
|
|
*ptr++ = toupper(*str++);
|
|
|
|
*ptr = '\0';
|
|
return (hptr);
|
|
|
|
}
|