480 lines
9.1 KiB
C
480 lines
9.1 KiB
C
/* $NetBSD: rpc_util.c,v 1.17 2015/05/09 23:28:43 dholland 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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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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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_util.c 1.11 89/02/22 (C) 1987 SMI";
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#else
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__RCSID("$NetBSD: rpc_util.c,v 1.17 2015/05/09 23:28:43 dholland Exp $");
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#endif
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#endif
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/*
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* rpc_util.c, Utility routines for the RPC protocol compiler
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <err.h>
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#include <ctype.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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#define ARGEXT "argument"
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static void printwhere(void);
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char curline[MAXLINESIZE]; /* current read line */
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char *where = curline; /* current point in line */
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int linenum = 0; /* current line number */
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const char *infilename; /* input filename */
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#define NFILES 7
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static const char *outfiles[NFILES]; /* output file names */
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int nfiles;
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FILE *fout; /* file pointer of current output */
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FILE *fin; /* file pointer of current input */
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list *defined; /* list of defined things */
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static const char *toktostr(tok_kind);
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static void printbuf(void);
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static void printwhere(void);
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static int findit(definition *, const char *);
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static const char *fixit(const char *, const char *);
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static int typedefed(definition *, const char *);
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/*
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* Reinitialize the world
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*/
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void
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reinitialize(void)
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{
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memset(curline, 0, MAXLINESIZE);
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where = curline;
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linenum = 0;
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defined = NULL;
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}
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/*
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* string equality
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*/
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int
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streq(const char *a, const char *b)
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{
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return (strcmp(a, b) == 0);
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}
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/*
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* find a value in a list
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*/
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definition *
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findval(list *lst, const char *val, int (*cmp)(definition *, const char *))
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{
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for (; lst != NULL; lst = lst->next) {
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if ((*cmp) (lst->val, val)) {
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return (lst->val);
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}
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}
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return (NULL);
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}
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/*
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* store a value in a list
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*/
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void
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storeval(list **lstp, definition *val)
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{
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list **l;
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list *lst;
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for (l = lstp; *l != NULL; l = (list **) & (*l)->next);
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lst = ALLOC(list);
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lst->val = val;
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lst->next = NULL;
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*l = lst;
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}
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static int
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findit(definition *def, const char *type)
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{
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return (streq(def->def_name, type));
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}
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static const char *
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fixit(const char *type, const char *orig)
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{
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definition *def;
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def = (definition *) FINDVAL(defined, type, findit);
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if (def == NULL || def->def_kind != DEF_TYPEDEF) {
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return (orig);
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}
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switch (def->def.ty.rel) {
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case REL_VECTOR:
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return (def->def.ty.old_type);
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case REL_ALIAS:
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return (fixit(def->def.ty.old_type, orig));
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default:
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return (orig);
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}
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}
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const char *
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fixtype(const char *type)
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{
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return (fixit(type, type));
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}
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const char *
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stringfix(const char *type)
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{
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if (streq(type, "string")) {
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return ("wrapstring");
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} else {
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return (type);
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}
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}
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void
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ptype(const char *prefix, const char *type, int follow)
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{
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if (prefix != NULL) {
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if (streq(prefix, "enum")) {
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f_print(fout, "enum ");
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} else {
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f_print(fout, "struct ");
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}
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}
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if (streq(type, "bool")) {
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f_print(fout, "bool_t ");
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} else
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if (streq(type, "string")) {
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f_print(fout, "char *");
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} else {
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f_print(fout, "%s ", follow ? fixtype(type) : type);
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}
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}
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static int
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typedefed(definition *def, const char *type)
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{
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if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL) {
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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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int
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isvectordef(const char *type, relation rel)
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{
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definition *def;
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for (;;) {
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switch (rel) {
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case REL_VECTOR:
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return (!streq(type, "string"));
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case REL_ARRAY:
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return (0);
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case REL_POINTER:
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return (0);
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case REL_ALIAS:
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def = (definition *) FINDVAL(defined, type, typedefed);
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if (def == NULL) {
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return (0);
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}
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type = def->def.ty.old_type;
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rel = def->def.ty.rel;
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}
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}
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}
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char *
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locase(const char *str)
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{
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char c;
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static char buf[100];
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char *p = buf;
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while ((c = *str++) != '\0') {
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*p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
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}
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*p = 0;
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return (buf);
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}
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void
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pvname_svc(const char *pname, const char *vnum)
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{
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f_print(fout, "%s_%s_svc", locase(pname), vnum);
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}
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void
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pvname(const char *pname, const char *vnum)
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{
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f_print(fout, "%s_%s", locase(pname), vnum);
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}
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/*
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* print a useful (?) error message, and then die
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*/
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__printflike(1, 2) void
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error(const char *msg, ...)
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{
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va_list ap;
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printwhere();
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fprintf(stderr, "%s:%d: ", infilename, linenum);
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va_start(ap, msg);
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vfprintf(stderr, msg, ap);
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va_end(ap);
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fprintf(stderr, "\n");
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errx(EXIT_FAILURE, "Cannot recover from this error");
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}
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/*
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* Something went wrong, unlink any files that we may have created and then
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* die.
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*/
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void
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crash(void)
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{
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int i;
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if (!docleanup)
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return;
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for (i = 0; i < nfiles; i++) {
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(void) unlink(outfiles[i]);
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}
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}
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void
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record_open(const char *file)
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{
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if (nfiles < NFILES) {
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outfiles[nfiles++] = file;
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} else {
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errx(EXIT_FAILURE, "Too many files!");
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}
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}
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/*
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* error, token encountered was not the expected one
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*/
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void
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expected1(tok_kind exp1)
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{
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error("Expected '%s'", toktostr(exp1));
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}
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/*
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* error, token encountered was not one of two expected ones
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*/
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void
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expected2(tok_kind exp1, tok_kind exp2)
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{
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error("Expected '%s' or '%s'",
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toktostr(exp1),
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toktostr(exp2));
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}
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/*
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* error, token encountered was not one of 3 expected ones
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*/
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void
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expected3(tok_kind exp1, tok_kind exp2, tok_kind exp3)
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{
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error("Expected '%s', '%s', or '%s'",
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toktostr(exp1),
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toktostr(exp2),
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toktostr(exp3));
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}
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void
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tabify(FILE *f, int tab)
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{
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while (tab--) {
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(void) fputc('\t', f);
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}
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}
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static token tokstrings[] = {
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{TOK_IDENT, "identifier"},
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{TOK_CONST, "const"},
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{TOK_RPAREN, ")"},
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{TOK_LPAREN, "("},
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{TOK_RBRACE, "}"},
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{TOK_LBRACE, "{"},
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{TOK_LBRACKET, "["},
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{TOK_RBRACKET, "]"},
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{TOK_STAR, "*"},
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{TOK_COMMA, ","},
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{TOK_EQUAL, "="},
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{TOK_COLON, ":"},
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{TOK_SEMICOLON, ";"},
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{TOK_UNION, "union"},
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{TOK_STRUCT, "struct"},
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{TOK_SWITCH, "switch"},
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{TOK_CASE, "case"},
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{TOK_DEFAULT, "default"},
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{TOK_ENUM, "enum"},
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{TOK_TYPEDEF, "typedef"},
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{TOK_INT, "int"},
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{TOK_SHORT, "short"},
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{TOK_LONG, "long"},
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{TOK_UNSIGNED, "unsigned"},
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{TOK_DOUBLE, "double"},
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{TOK_FLOAT, "float"},
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{TOK_CHAR, "char"},
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{TOK_STRING, "string"},
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{TOK_OPAQUE, "opaque"},
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{TOK_BOOL, "bool"},
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{TOK_VOID, "void"},
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{TOK_PROGRAM, "program"},
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{TOK_VERSION, "version"},
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{TOK_EOF, "??????"}
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};
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static const char *
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toktostr(tok_kind kind)
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{
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token *sp;
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for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++);
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return (sp->str);
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}
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static void
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printbuf(void)
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{
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char c;
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int i;
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int cnt;
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#define TABSIZE 4
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for (i = 0; (c = curline[i]) != '\0'; i++) {
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if (c == '\t') {
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cnt = 8 - (i % TABSIZE);
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c = ' ';
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} else {
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cnt = 1;
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}
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while (cnt--) {
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(void) fputc(c, stderr);
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}
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}
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}
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static void
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printwhere(void)
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{
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int i;
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char c;
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int cnt;
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printbuf();
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for (i = 0; i < where - curline; i++) {
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c = curline[i];
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if (c == '\t') {
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cnt = 8 - (i % TABSIZE);
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} else {
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cnt = 1;
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}
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while (cnt--) {
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(void) fputc('^', stderr);
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}
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}
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(void) fputc('\n', stderr);
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}
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char *
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make_argname(const char *pname, const char *vname)
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{
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char *name;
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size_t len;
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len = strlen(pname) + strlen(vname) + strlen(ARGEXT) + 3;
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name = malloc(len);
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if (!name) {
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errx(EXIT_FAILURE, "Out of memory");
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}
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snprintf(name, len, "%s_%s_%s", locase(pname), vname, ARGEXT);
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return (name);
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}
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bas_type *typ_list_h;
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bas_type *typ_list_t;
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void
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add_type(int len, const char *type)
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{
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bas_type *ptr;
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if ((ptr = malloc(sizeof(bas_type))) == NULL) {
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errx(EXIT_FAILURE, "Out of memory");
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}
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ptr->name = type;
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ptr->length = len;
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ptr->next = NULL;
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if (typ_list_t == NULL) {
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typ_list_t = ptr;
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typ_list_h = ptr;
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} else {
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typ_list_t->next = ptr;
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typ_list_t = ptr;
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}
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}
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bas_type *
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find_type(const char *type)
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{
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bas_type *ptr;
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ptr = typ_list_h;
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while (ptr != NULL) {
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if (strcmp(ptr->name, type) == 0)
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return (ptr);
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else
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ptr = ptr->next;
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}
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return (NULL);
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}
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