freebsd-src/usr.bin/rpcgen/rpc_util.c
Bill Paul ff49530f45 Clean up. (I hope I'm doing this right.)
Update rpcgen with the one from the TI-RPC 2.3 distribution.

Note that when built for FreeBSD, this version of rpcgen assumes
backwards compatibility mode by default. This means that it will produce
ONCRPC 4.0 compatible code unless otherwise instructed, instead of the
other way around.

One incompatibility has also been worked around: this rpcgen normally
always emits an '#include <stropts.h>' directive whether you select
backwards compatibility mode or not. We don't have STREAMS, so this
behavior has been changed: now it will only emit this line if run in TI-RPC
mode.

The 'generate output files in current directory instead of the
directory where the protocol definition file lives' hack from the
original rpcgen has been preserved.

Notable new features:

- Can be used to generate RPC servers that can be launched
  from port monitors such as inetd(5).

- Can generate ANSI C code.

- Can generate sample client and server top-level programs and
  makefiles in addition to the usual client and server stubs.

- Can generate inline XDR routines.
1995-12-13 03:31:10 +00:00

509 lines
8.6 KiB
C

/*
* 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
*/
#ident "@(#)rpc_util.c 1.14 93/07/05 SMI"
#ifndef lint
static char sccsid[] = "@(#)rpc_util.c 1.11 89/02/22 (C) 1987 SMI";
#endif
/*
* rpc_util.c, Utility routines for the RPC protocol compiler
* Copyright (C) 1989, Sun Microsystems, Inc.
*/
#include <stdio.h>
#include <ctype.h>
#include "rpc_scan.h"
#include "rpc_parse.h"
#include "rpc_util.h"
#define ARGEXT "argument"
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 7
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 int printwhere __P(( void ));
/*
* 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
*/
definition *
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;
definition *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:
if (streq(def->def.ty.old_type, "opaque"))
return ("char");
else
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;
}
}
}
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_svc(pname, vnum)
char *pname;
char *vnum;
{
f_print(fout, "%s_%s_svc", locase(pname), vnum);
}
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);
}
char *
make_argname(pname, vname)
char *pname;
char *vname;
{
char *name;
name = malloc(strlen(pname) + strlen(vname) + strlen(ARGEXT) + 3);
if (!name) {
fprintf(stderr, "failed in malloc");
exit(1);
}
sprintf(name, "%s_%s_%s", locase(pname), vname, ARGEXT);
return (name);
}
bas_type *typ_list_h;
bas_type *typ_list_t;
add_type(len, type)
int len;
char *type;
{
bas_type *ptr;
if ((ptr = (bas_type *) malloc(sizeof (bas_type))) ==
(bas_type *)NULL) {
fprintf(stderr, "failed in malloc");
exit(1);
}
ptr->name = type;
ptr->length = len;
ptr->next = NULL;
if (typ_list_t == NULL)
{
typ_list_t = ptr;
typ_list_h = ptr;
}
else
{
typ_list_t->next = ptr;
typ_list_t = ptr;
};
}
bas_type *find_type(type)
char *type;
{
bas_type * ptr;
ptr = typ_list_h;
while (ptr != NULL)
{
if (strcmp(ptr->name, type) == 0)
return (ptr);
else
ptr = ptr->next;
};
return (NULL);
}