704 lines
16 KiB
C
704 lines
16 KiB
C
/*
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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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/*
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* From: @(#)rpc_cout.c 1.13 89/02/22 (C) 1987 SMI
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*/
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char cout_rcsid[] =
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"$Id$";
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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 <stdio.h>
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#include <string.h>
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#include "rpc_parse.h"
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#include "rpc_util.h"
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#include "proto.h"
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static void emit_enum(definition *def);
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static void emit_program(const definition *def);
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static void emit_union(const definition *def);
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static void emit_struct(definition *def);
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static void emit_typedef(const definition *def);
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static int findtype(const definition *def, const char *type);
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static int undefined(const char *type);
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static void print_generic_header(const char *procname, int pointerp);
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static void print_ifopen(int indent, const char *name);
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static void print_ifarg(const char *arg);
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static void print_ifsizeof(const char *prefix, const char *type);
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static void print_ifclose(int indent);
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static void print_ifstat(int indent, const char *prefix, const char *type,
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relation rel, const char *amax,
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const char *objname, const char *name);
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static void print_stat(int indent, const declaration *dec);
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static void print_header(const definition *def);
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static void print_trailer(void);
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static char *upcase(const char *str);
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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(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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{
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/* now we need to handle declarations like
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struct typedef foo foo;
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since we don't want this to be expanded
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into 2 calls to 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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default:
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/* can't happen */
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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(const definition *def, const 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(const 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(const char *procname, 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\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\n");
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}
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}
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static void
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print_header(const 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,
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def->def.ty.rel));
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/* Now add Inline support */
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if(inlineflag == 0 )
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return;
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/*May cause lint to complain. but ... */
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f_print(fout, "\t register long *buf;\n\n");
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}
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static void
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print_prog_header(const 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(void)
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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(int indent, const char *name)
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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(const 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(const char *prefix, const char *type)
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{
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if (streq(type, "bool")) {
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f_print(fout, ", sizeof(bool_t), (xdrproc_t)xdr_bool");
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}
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else {
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f_print(fout, ", 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(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, "\t return FALSE;\n");
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tabify(fout, indent);
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f_print(fout, " }\n");
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}
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static void
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print_ifstat(int indent, const char *prefix, const char *type, relation rel,
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const char *amax, const char *objname, const char *name)
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{
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const 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 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 *)");
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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 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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static void
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emit_enum(definition *def)
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{
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(void)def;
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print_ifopen(1, "enum");
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print_ifarg("(enum_t *)objp");
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print_ifclose(1);
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}
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static void
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emit_program(const 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 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(const 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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const char *vecformat = "objp->%s_u.%s";
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const char *format = "&objp->%s_u.%s";
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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, cs->array_max,
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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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if (dflt != NULL) {
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if (!streq(dflt->type, "void")) {
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f_print(fout, "\tdefault:\n");
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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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f_print(fout, "\t\tbreak;\n");
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}
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#ifdef __GNU_LIBRARY__
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else {
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f_print(fout, "\tdefault:\n");
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f_print(fout, "\t\tbreak;\n");
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}
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#endif
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} else {
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f_print(fout, "\tdefault:\n");
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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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/* this may be const. i haven't traced this one through yet. */
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static void
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emit_struct(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;
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const char *plus;
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char ptemp[256];
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int can_inline;
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if(inlineflag == 0) {
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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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}
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else {
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for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
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if(dl->decl.rel == REL_VECTOR){
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f_print(fout,"\t int i;\n");
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break;
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}
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size=0;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) && ((ptr=find_type(dl->decl.type))!= NULL) && ((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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}
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else {
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if(size >= inlineflag){
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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 > inlineflag)
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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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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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flag=PUT;
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for(j=0; j<2; j++){
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if(flag == PUT)
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f_print(fout,"\n\t if (xdrs->x_op == XDR_ENCODE) {\n");
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else
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f_print(fout,"\n \t return TRUE;\n\t} else if (xdrs->x_op == XDR_DECODE) {\n");
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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=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 array */
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}
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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 < inlineflag){
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/* don't expand into inline code if size < inlineflag */
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while(cur != dl){
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print_stat(1,&cur->decl);
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cur=cur->next;
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}
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}
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else{
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/* were already looking at a xdr_inlineable structure */
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if(sizestr == NULL)
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f_print(fout,"\t buf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
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size);
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else
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if(size == 0)
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f_print(fout,
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"\t buf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
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sizestr);
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else
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f_print(fout,
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"\t buf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
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size,sizestr);
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f_print(fout,"\n\t if (buf == NULL) {\n");
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psav=cur;
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while(cur != dl){
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print_stat(2,&cur->decl);
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cur=cur->next;
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}
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f_print(fout,"\n\t }\n\t else {\n");
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|
|
cur=psav;
|
|
while(cur != dl){
|
|
emit_inline(&cur->decl,flag);
|
|
cur=cur->next;
|
|
}
|
|
|
|
f_print(fout,"\t }\n");
|
|
}
|
|
size=0;i=0;sizestr=NULL;
|
|
print_stat(1,&dl->decl);
|
|
}
|
|
|
|
}
|
|
if(i > 0 )
|
|
if(sizestr == NULL && size < inlineflag){
|
|
/* don't expand into inline code if size < inlineflag */
|
|
while(cur != dl){
|
|
print_stat(1,&cur->decl);
|
|
cur=cur->next;
|
|
}
|
|
}
|
|
else{
|
|
|
|
/* were already looking at a xdr_inlineable structure */
|
|
if(sizestr == NULL)
|
|
f_print(fout,"\t\tbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
|
|
size);
|
|
else
|
|
if(size == 0)
|
|
f_print(fout,
|
|
"\t\tbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
|
|
sizestr);
|
|
else
|
|
f_print(fout,
|
|
"\t\tbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
|
|
size,sizestr);
|
|
|
|
f_print(fout,"\n\t\tif (buf == NULL) {\n");
|
|
|
|
psav=cur;
|
|
while(cur != NULL){
|
|
print_stat(2,&cur->decl);
|
|
cur=cur->next;
|
|
}
|
|
f_print(fout,"\n\t }\n\t else {\n");
|
|
|
|
cur=psav;
|
|
while(cur != dl){
|
|
emit_inline(&cur->decl,flag);
|
|
cur=cur->next;
|
|
}
|
|
|
|
f_print(fout,"\t }\n");
|
|
|
|
}
|
|
flag=GET;
|
|
}
|
|
f_print(fout,"\t return TRUE;\n\t}\n\n");
|
|
|
|
/* now take care of XDR_FREE case */
|
|
|
|
for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
|
|
print_stat(1,&dl->decl);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
emit_typedef(const definition *def)
|
|
{
|
|
const char *prefix = def->def.ty.old_prefix;
|
|
const char *type = def->def.ty.old_type;
|
|
const char *amax = def->def.ty.array_max;
|
|
relation rel = def->def.ty.rel;
|
|
|
|
|
|
print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
|
|
}
|
|
|
|
static void
|
|
print_stat(int indent, const declaration *dec)
|
|
{
|
|
const char *prefix = dec->prefix;
|
|
const char *type = dec->type;
|
|
const 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(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{ register %s *genp; \n",decl->type);
|
|
f_print(fout,"\t\t for ( i = 0,genp=objp->%s;\n \t\t\ti < %s; i++){\n\t\t",
|
|
decl->name,decl->array_max);
|
|
emit_single_in_line(decl,flag,REL_VECTOR);
|
|
f_print(fout,"\t\t }\n\t\t };\n");
|
|
|
|
default:
|
|
/* ?... do nothing I guess */
|
|
}
|
|
}
|
|
|
|
void
|
|
emit_single_in_line(declaration *decl, int flag, relation rel)
|
|
{
|
|
char *upp_case1;
|
|
const char *upp_case;
|
|
|
|
if (flag == PUT) {
|
|
f_print(fout,"\t\t IXDR_PUT_");
|
|
}
|
|
else {
|
|
if(rel== REL_ALIAS) {
|
|
f_print(fout, "\t\t objp->%s = IXDR_GET_", decl->name);
|
|
}
|
|
else {
|
|
f_print(fout,"\t\t *genp++ = IXDR_GET_");
|
|
}
|
|
}
|
|
|
|
upp_case1 = upcase(decl->type);
|
|
upp_case = upp_case1;
|
|
|
|
/* hack - XX */
|
|
if (!strcmp(upp_case, "INT")) upp_case="LONG";
|
|
if (!strcmp(upp_case, "U_INT")) upp_case="U_LONG";
|
|
|
|
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);
|
|
}
|
|
|
|
free(upp_case1);
|
|
}
|
|
|
|
|
|
static char *upcase(const char *str) {
|
|
char *ptr, *hptr;
|
|
ptr = malloc(strlen(str));
|
|
if (ptr == NULL) {
|
|
f_print(stderr,"malloc failed\n");
|
|
exit(1);
|
|
}
|
|
hptr=ptr;
|
|
while (*str != 0) {
|
|
*ptr++ = toupper(*str++);
|
|
}
|
|
*ptr=0;
|
|
return hptr;
|
|
}
|