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- /* @(#)rpc_util.c 2.1 88/08/01 4.0 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #ifndef lint
- static char sccsid[] = "@(#)rpc_util.c 1.5 87/06/24 (C) 1987 SMI";
- #endif
-
- /*
- * rpc_util.c, Utility routines for the RPC protocol compiler
- * Copyright (C) 1987, Sun Microsystems, Inc.
- */
- #include <stdlib.h>
- #include <unistd.h>
- #include <stdio.h>
- #include "rpc_scan.h"
- #include "rpc_parse.h"
- #include "rpc_util.h"
-
- char curline[MAXLINESIZE]; /* current read line */
- char *where = curline; /* current point in line */
- int linenum = 0; /* current line number */
-
- char *infilename; /* input filename */
-
- #define NFILES 4
- char *outfiles[NFILES]; /* output file names */
- int nfiles;
-
- FILE *fout; /* file pointer of current output */
- FILE *fin; /* file pointer of current input */
-
- list *defined; /* list of defined things */
-
- static printwhere();
-
- /*
- * Reinitialize the world
- */
- reinitialize()
- {
- memset(curline, 0, MAXLINESIZE);
- where = curline;
- linenum = 0;
- defined = NULL;
- }
-
- /*
- * string equality
- */
- streq(a, b)
- char *a;
- char *b;
- {
- return (strcmp(a, b) == 0);
- }
-
- /*
- * find a value in a list
- */
- char *
- findval(lst, val, cmp)
- list *lst;
- char *val;
- int (*cmp) ();
-
- {
- for (; lst != NULL; lst = lst->next) {
- if ((*cmp) (lst->val, val)) {
- return (lst->val);
- }
- }
- return (NULL);
- }
-
- /*
- * store a value in a list
- */
- void
- storeval(lstp, val)
- list **lstp;
- char *val;
- {
- list **l;
- list *lst;
-
- for (l = lstp; *l != NULL; l = (list **) & (*l)->next);
- lst = ALLOC(list);
- lst->val = val;
- lst->next = NULL;
- *l = lst;
- }
-
-
- static
- findit(def, type)
- definition *def;
- char *type;
- {
- return (streq(def->def_name, type));
- }
-
-
- static char *
- fixit(type, orig)
- char *type;
- char *orig;
- {
- definition *def;
-
- def = (definition *) FINDVAL(defined, type, findit);
- if (def == NULL || def->def_kind != DEF_TYPEDEF) {
- return (orig);
- }
- switch (def->def.ty.rel) {
- case REL_VECTOR:
- return (def->def.ty.old_type);
- case REL_ALIAS:
- return (fixit(def->def.ty.old_type, orig));
- default:
- return (orig);
- }
- }
-
- char *
- fixtype(type)
- char *type;
- {
- return (fixit(type, type));
- }
-
- char *
- stringfix(type)
- char *type;
- {
- if (streq(type, "string")) {
- return ("wrapstring");
- } else {
- return (type);
- }
- }
-
- void
- ptype(prefix, type, follow)
- char *prefix;
- char *type;
- int follow;
- {
- if (prefix != NULL) {
- if (streq(prefix, "enum")) {
- f_print(fout, "enum ");
- } else {
- f_print(fout, "struct ");
- }
- }
- if (streq(type, "bool")) {
- f_print(fout, "bool_t ");
- } else if (streq(type, "string")) {
- f_print(fout, "char *");
- } else {
- f_print(fout, "%s ", follow ? fixtype(type) : type);
- }
- }
-
-
- static
- typedefed(def, type)
- definition *def;
- char *type;
- {
- if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL) {
- return (0);
- } else {
- return (streq(def->def_name, type));
- }
- }
-
- isvectordef(type, rel)
- char *type;
- relation rel;
- {
- definition *def;
-
- for (;;) {
- switch (rel) {
- case REL_VECTOR:
- return (!streq(type, "string"));
- case REL_ARRAY:
- return (0);
- case REL_POINTER:
- return (0);
- case REL_ALIAS:
- def = (definition *) FINDVAL(defined, type, typedefed);
- if (def == NULL) {
- return (0);
- }
- type = def->def.ty.old_type;
- rel = def->def.ty.rel;
- }
- }
- }
-
-
- static char *
- locase(str)
- char *str;
- {
- char c;
- static char buf[100];
- char *p = buf;
-
- while (c = *str++) {
- *p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
- }
- *p = 0;
- return (buf);
- }
-
-
- void
- pvname(pname, vnum)
- char *pname;
- char *vnum;
- {
- f_print(fout, "%s_%s", locase(pname), vnum);
- }
-
-
- /*
- * print a useful (?) error message, and then die
- */
- void
- error(msg)
- char *msg;
- {
- printwhere();
- f_print(stderr, "%s, line %d: ", infilename, linenum);
- f_print(stderr, "%s\n", msg);
- crash();
- }
-
- /*
- * Something went wrong, unlink any files that we may have created and then
- * die.
- */
- crash()
- {
- int i;
-
- for (i = 0; i < nfiles; i++) {
- (void) unlink(outfiles[i]);
- }
- exit(1);
- }
-
-
- void
- record_open(file)
- char *file;
- {
- if (nfiles < NFILES) {
- outfiles[nfiles++] = file;
- } else {
- f_print(stderr, "too many files!\n");
- crash();
- }
- }
-
- static char expectbuf[100];
- static char *toktostr();
-
- /*
- * error, token encountered was not the expected one
- */
- void
- expected1(exp1)
- tok_kind exp1;
- {
- s_print(expectbuf, "expected '%s'",
- toktostr(exp1));
- error(expectbuf);
- }
-
- /*
- * error, token encountered was not one of two expected ones
- */
- void
- expected2(exp1, exp2)
- tok_kind exp1, exp2;
- {
- s_print(expectbuf, "expected '%s' or '%s'",
- toktostr(exp1),
- toktostr(exp2));
- error(expectbuf);
- }
-
- /*
- * error, token encountered was not one of 3 expected ones
- */
- void
- expected3(exp1, exp2, exp3)
- tok_kind exp1, exp2, exp3;
- {
- s_print(expectbuf, "expected '%s', '%s' or '%s'",
- toktostr(exp1),
- toktostr(exp2),
- toktostr(exp3));
- error(expectbuf);
- }
-
- void
- tabify(f, tab)
- FILE *f;
- int tab;
- {
- while (tab--) {
- (void) fputc('\t', f);
- }
- }
-
-
-
- static token tokstrings[] = {
- {TOK_IDENT, "identifier"},
- {TOK_CONST, "const"},
- {TOK_RPAREN, ")"},
- {TOK_LPAREN, "("},
- {TOK_RBRACE, "}"},
- {TOK_LBRACE, "{"},
- {TOK_LBRACKET, "["},
- {TOK_RBRACKET, "]"},
- {TOK_STAR, "*"},
- {TOK_COMMA, ","},
- {TOK_EQUAL, "="},
- {TOK_COLON, ":"},
- {TOK_SEMICOLON, ";"},
- {TOK_UNION, "union"},
- {TOK_STRUCT, "struct"},
- {TOK_SWITCH, "switch"},
- {TOK_CASE, "case"},
- {TOK_DEFAULT, "default"},
- {TOK_ENUM, "enum"},
- {TOK_TYPEDEF, "typedef"},
- {TOK_INT, "int"},
- {TOK_SHORT, "short"},
- {TOK_LONG, "long"},
- {TOK_UNSIGNED, "unsigned"},
- {TOK_DOUBLE, "double"},
- {TOK_FLOAT, "float"},
- {TOK_CHAR, "char"},
- {TOK_STRING, "string"},
- {TOK_OPAQUE, "opaque"},
- {TOK_BOOL, "bool"},
- {TOK_VOID, "void"},
- {TOK_PROGRAM, "program"},
- {TOK_VERSION, "version"},
- {TOK_EOF, "??????"}
- };
-
- static char *
- toktostr(kind)
- tok_kind kind;
- {
- token *sp;
-
- for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++);
- return (sp->str);
- }
-
-
-
- static
- printbuf()
- {
- char c;
- int i;
- int cnt;
-
- # define TABSIZE 4
-
- for (i = 0; c = curline[i]; i++) {
- if (c == '\t') {
- cnt = 8 - (i % TABSIZE);
- c = ' ';
- } else {
- cnt = 1;
- }
- while (cnt--) {
- (void) fputc(c, stderr);
- }
- }
- }
-
-
- static
- printwhere()
- {
- int i;
- char c;
- int cnt;
-
- printbuf();
- for (i = 0; i < where - curline; i++) {
- c = curline[i];
- if (c == '\t') {
- cnt = 8 - (i % TABSIZE);
- } else {
- cnt = 1;
- }
- while (cnt--) {
- (void) fputc('^', stderr);
- }
- }
- (void) fputc('\n', stderr);
- }
-