OpenSolaris_b135/cmd/rpcgen/rpc_hout.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
/*
* rpc_hout.c, Header file outputter for the RPC protocol compiler
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "rpc_parse.h"
#include "rpc_util.h"
extern void pprocdef(proc_list *, version_list *, char *, int, int);
extern void pdeclaration(char *, declaration *, int, char *);
static void storexdrfuncdecl(char *, int);
static void pconstdef(definition *);
static void pstructdef(definition *);
static void puniondef(definition *);
static void pdefine(char *, char *);
static void pprogramdef(definition *);
static void parglist(proc_list *, char *);
static void penumdef(definition *);
static void ptypedef(definition *);
static uint_t undefined2(char *, char *);
enum rpc_gvc {
PROGRAM,
VERSION,
PROCEDURE
};
/*
* Print the C-version of an xdr definition
*/
void
print_datadef(definition *def)
{
if (def->def_kind == DEF_PROGRAM) /* handle data only */
return;
if (def->def_kind != DEF_CONST)
f_print(fout, "\n");
switch (def->def_kind) {
case DEF_STRUCT:
pstructdef(def);
break;
case DEF_UNION:
puniondef(def);
break;
case DEF_ENUM:
penumdef(def);
break;
case DEF_TYPEDEF:
ptypedef(def);
break;
case DEF_PROGRAM:
pprogramdef(def);
break;
case DEF_CONST:
pconstdef(def);
break;
}
if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST)
storexdrfuncdecl(def->def_name, def->def_kind != DEF_TYPEDEF ||
!isvectordef(def->def.ty.old_type, def->def.ty.rel));
}
void
print_funcdef(definition *def)
{
switch (def->def_kind) {
case DEF_PROGRAM:
f_print(fout, "\n");
pprogramdef(def);
break;
}
}
/*
* store away enough information to allow the XDR functions to be spat
* out at the end of the file
*/
static void
storexdrfuncdecl(char *name, int pointerp)
{
xdrfunc *xdrptr;
xdrptr = malloc(sizeof (struct xdrfunc));
xdrptr->name = name;
xdrptr->pointerp = pointerp;
xdrptr->next = NULL;
if (xdrfunc_tail == NULL) {
xdrfunc_head = xdrptr;
xdrfunc_tail = xdrptr;
} else {
xdrfunc_tail->next = xdrptr;
xdrfunc_tail = xdrptr;
}
}
void
print_xdr_func_def(char *name, int pointerp, int i)
{
if (i == 2)
f_print(fout, "extern bool_t xdr_%s();\n", name);
else
f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name,
name, pointerp ? "*" : "");
}
static void
pconstdef(definition *def)
{
pdefine(def->def_name, def->def.co);
}
/*
* print out the definitions for the arguments of functions in the
* header file
*/
static void
pargdef(definition *def)
{
decl_list *l;
version_list *vers;
char *name;
proc_list *plist;
for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
for (plist = vers->procs; plist != NULL; plist = plist->next) {
if (!newstyle || plist->arg_num < 2)
continue; /* old style or single args */
name = plist->args.argname;
f_print(fout, "struct %s {\n", name);
for (l = plist->args.decls; l != NULL; l = l->next)
pdeclaration(name, &l->decl, 1, ";\n");
f_print(fout, "};\n");
f_print(fout, "typedef struct %s %s;\n", name, name);
storexdrfuncdecl(name, 1);
f_print(fout, "\n");
}
}
}
static void
pstructdef(definition *def)
{
decl_list *l;
char *name = def->def_name;
f_print(fout, "struct %s {\n", name);
for (l = def->def.st.decls; l != NULL; l = l->next)
pdeclaration(name, &l->decl, 1, ";\n");
f_print(fout, "};\n");
f_print(fout, "typedef struct %s %s;\n", name, name);
}
static void
puniondef(definition *def)
{
case_list *l;
char *name = def->def_name;
declaration *decl;
f_print(fout, "struct %s {\n", name);
decl = &def->def.un.enum_decl;
if (streq(decl->type, "bool"))
f_print(fout, "\tbool_t %s;\n", decl->name);
else
f_print(fout, "\t%s %s;\n", decl->type, decl->name);
f_print(fout, "\tunion {\n");
for (l = def->def.un.cases; l != NULL; l = l->next) {
if (l->contflag == 0)
pdeclaration(name, &l->case_decl, 2, ";\n");
}
decl = def->def.un.default_decl;
if (decl && !streq(decl->type, "void"))
pdeclaration(name, decl, 2, ";\n");
f_print(fout, "\t} %s_u;\n", name);
f_print(fout, "};\n");
f_print(fout, "typedef struct %s %s;\n", name, name);
}
static void
pdefine(char *name, char *num)
{
f_print(fout, "#define\t%s %s\n", name, num);
}
static void
puldefine(char *name, char *num, enum rpc_gvc which)
{
switch (which) {
case PROGRAM:
case VERSION:
case PROCEDURE:
f_print(fout, "#define\t%s\t%s\n", name, num);
break;
default:
break;
}
}
static uint_t
define_printed(proc_list *stop, version_list *start)
{
version_list *vers;
proc_list *proc;
for (vers = start; vers != NULL; vers = vers->next) {
for (proc = vers->procs; proc != NULL; proc = proc->next) {
if (proc == stop)
return (0);
if (streq(proc->proc_name, stop->proc_name))
return (1);
}
}
abort();
/* NOTREACHED */
}
static void
pfreeprocdef(char *name, char *vers, int mode)
{
f_print(fout, "extern int ");
pvname(name, vers);
if (mode == 1)
f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n");
else
f_print(fout, "_freeresult();\n");
}
static void
pprogramdef(definition *def)
{
version_list *vers;
proc_list *proc;
int i;
char *ext;
pargdef(def);
puldefine(def->def_name, def->def.pr.prog_num, PROGRAM);
for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
if (tblflag) {
f_print(fout,
"extern struct rpcgen_table %s_%s_table[];\n",
locase(def->def_name), vers->vers_num);
f_print(fout,
"extern int %s_%s_nproc;\n",
locase(def->def_name), vers->vers_num);
}
puldefine(vers->vers_name, vers->vers_num, VERSION);
/*
* Print out 2 definitions, one for ANSI-C, another for
* old K & R C
*/
if (!Cflag) {
ext = "extern ";
for (proc = vers->procs; proc != NULL;
proc = proc->next) {
if (!define_printed(proc, def->def.pr.versions))
puldefine(proc->proc_name,
proc->proc_num, PROCEDURE);
f_print(fout, "%s", ext);
pprocdef(proc, vers, NULL, 0, 2);
if (mtflag) {
f_print(fout, "%s", ext);
pprocdef(proc, vers, NULL, 1, 2);
}
}
pfreeprocdef(def->def_name, vers->vers_num, 2);
} else {
for (i = 1; i < 3; i++) {
if (i == 1) {
f_print(fout, "\n#if defined(__STDC__)"
" || defined(__cplusplus)\n");
ext = "extern ";
} else {
f_print(fout, "\n#else /* K&R C */\n");
ext = "extern ";
}
for (proc = vers->procs; proc != NULL;
proc = proc->next) {
if (!define_printed(proc,
def->def.pr.versions)) {
puldefine(proc->proc_name,
proc->proc_num, PROCEDURE);
}
f_print(fout, "%s", ext);
pprocdef(proc, vers, "CLIENT *", 0, i);
f_print(fout, "%s", ext);
pprocdef(proc, vers,
"struct svc_req *", 1, i);
}
pfreeprocdef(def->def_name, vers->vers_num, i);
}
f_print(fout, "#endif /* K&R C */\n");
}
}
}
void
pprocdef(proc_list *proc, version_list *vp, char *addargtype, int server_p,
int mode)
{
if (mtflag) {
/* Print MT style stubs */
if (server_p)
f_print(fout, "bool_t ");
else
f_print(fout, "enum clnt_stat ");
} else {
ptype(proc->res_prefix, proc->res_type, 1);
f_print(fout, "* ");
}
if (server_p)
pvname_svc(proc->proc_name, vp->vers_num);
else
pvname(proc->proc_name, vp->vers_num);
/*
* mode 1 = ANSI-C, mode 2 = K&R C
*/
if (mode == 1)
parglist(proc, addargtype);
else
f_print(fout, "();\n");
}
/* print out argument list of procedure */
static void
parglist(proc_list *proc, char *addargtype)
{
decl_list *dl;
int oneway = streq(proc->res_type, "oneway");
f_print(fout, "(");
if (proc->arg_num < 2 && newstyle &&
streq(proc->args.decls->decl.type, "void")) {
/* 0 argument in new style: do nothing */
/* EMPTY */
} else {
for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
ptype(dl->decl.prefix, dl->decl.type, 1);
if (!newstyle || (dl->decl.rel == REL_POINTER))
f_print(fout, "*");
/* old style passes by reference */
f_print(fout, ", ");
}
}
if (mtflag && !oneway) {
ptype(proc->res_prefix, proc->res_type, 1);
f_print(fout, "*, ");
}
f_print(fout, "%s);\n", addargtype);
}
static void
penumdef(definition *def)
{
char *name = def->def_name;
enumval_list *l;
char *last = NULL;
int count = 0;
f_print(fout, "enum %s {\n", name);
for (l = def->def.en.vals; l != NULL; l = l->next) {
f_print(fout, "\t%s", l->name);
if (l->assignment) {
f_print(fout, " = %s", l->assignment);
last = l->assignment;
count = 1;
} else {
if (last == NULL)
f_print(fout, " = %d", count++);
else
f_print(fout, " = %s + %d", last, count++);
}
if (l->next)
f_print(fout, ",\n");
else
f_print(fout, "\n");
}
f_print(fout, "};\n");
f_print(fout, "typedef enum %s %s;\n", name, name);
}
static void
ptypedef(definition *def)
{
char *name = def->def_name;
char *old = def->def.ty.old_type;
char prefix[8]; /* enough to contain "struct ", including NUL */
relation rel = def->def.ty.rel;
if (!streq(name, old)) {
if (streq(old, "string")) {
old = "char";
rel = REL_POINTER;
} else if (streq(old, "opaque")) {
old = "char";
} else if (streq(old, "bool")) {
old = "bool_t";
}
if (undefined2(old, name) && def->def.ty.old_prefix)
(void) snprintf(prefix, sizeof (prefix), "%s ",
def->def.ty.old_prefix);
else
prefix[0] = 0;
f_print(fout, "typedef ");
switch (rel) {
case REL_ARRAY:
f_print(fout, "struct {\n");
f_print(fout, "\tu_int %s_len;\n", name);
f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
f_print(fout, "} %s", name);
break;
case REL_POINTER:
f_print(fout, "%s%s *%s", prefix, old, name);
break;
case REL_VECTOR:
f_print(fout, "%s%s %s[%s]", prefix, old, name,
def->def.ty.array_max);
break;
case REL_ALIAS:
f_print(fout, "%s%s %s", prefix, old, name);
break;
}
f_print(fout, ";\n");
}
}
void
pdeclaration(char *name, declaration *dec, int tab, char *separator)
{
char buf[8]; /* enough to hold "struct ", include NUL */
char *prefix;
char *type;
if (streq(dec->type, "void"))
return;
tabify(fout, tab);
if (streq(dec->type, name) && !dec->prefix)
f_print(fout, "struct ");
if (streq(dec->type, "string")) {
f_print(fout, "char *%s", dec->name);
} else {
prefix = "";
if (streq(dec->type, "bool")) {
type = "bool_t";
} else if (streq(dec->type, "opaque")) {
type = "char";
} else {
if (dec->prefix) {
(void) snprintf(buf, sizeof (buf),
"%s ", dec->prefix);
prefix = buf;
}
type = dec->type;
}
switch (dec->rel) {
case REL_ALIAS:
f_print(fout, "%s%s %s", prefix, type, dec->name);
break;
case REL_VECTOR:
f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
dec->array_max);
break;
case REL_POINTER:
f_print(fout, "%s%s *%s", prefix, type, dec->name);
break;
case REL_ARRAY:
f_print(fout, "struct {\n");
tabify(fout, tab);
f_print(fout, "\tu_int %s_len;\n", dec->name);
tabify(fout, tab);
f_print(fout,
"\t%s%s *%s_val;\n", prefix, type, dec->name);
tabify(fout, tab);
f_print(fout, "} %s", dec->name);
break;
}
}
/* LINTED variable format */
f_print(fout, separator);
}
static uint_t
undefined2(char *type, char *stop)
{
list *l;
definition *def;
for (l = defined; l != NULL; l = l->next) {
def = (definition *) l->val;
if (def->def_kind != DEF_PROGRAM) {
if (streq(def->def_name, stop))
return (1);
if (streq(def->def_name, type))
return (0);
}
}
return (1);
}