4.4BSD/usr/src/lib/librpc/rpcgen/rpc_hout.c
/* @(#)rpc_hout.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_hout.c 1.6 87/07/28 (C) 1987 SMI";
#endif
/*
* rpc_hout.c, Header file outputter for the RPC protocol compiler
* Copyright (C) 1987, Sun Microsystems, Inc.
*/
#include <stdio.h>
#include <ctype.h>
#include "rpc_util.h"
#include "rpc_parse.h"
/*
* Print the C-version of an xdr definition
*/
void
print_datadef(def)
definition *def;
{
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) {
f_print(fout, "bool_t xdr_%s();\n", def->def_name);
}
if (def->def_kind != DEF_CONST) {
f_print(fout, "\n");
}
}
static
pconstdef(def)
definition *def;
{
pdefine(def->def_name, def->def.co);
}
static
pstructdef(def)
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);
}
f_print(fout, "};\n");
f_print(fout, "typedef struct %s %s;\n", name, name);
}
static
puniondef(def)
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) {
pdeclaration(name, &l->case_decl, 2);
}
decl = def->def.un.default_decl;
if (decl && !streq(decl->type, "void")) {
pdeclaration(name, decl, 2);
}
f_print(fout, "\t} %s_u;\n", name);
f_print(fout, "};\n");
f_print(fout, "typedef struct %s %s;\n", name, name);
}
static
pdefine(name, num)
char *name;
char *num;
{
f_print(fout, "#define %s %s\n", name, num);
}
static
puldefine(name, num)
char *name;
char *num;
{
f_print(fout, "#define %s ((u_long)%s)\n", name, num);
}
static
define_printed(stop, start)
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);
} else if (streq(proc->proc_name, stop->proc_name)) {
return (1);
}
}
}
abort();
/* NOTREACHED */
}
static
pprogramdef(def)
definition *def;
{
version_list *vers;
proc_list *proc;
puldefine(def->def_name, def->def.pr.prog_num);
for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
puldefine(vers->vers_name, vers->vers_num);
for (proc = vers->procs; proc != NULL; proc = proc->next) {
if (!define_printed(proc, def->def.pr.versions)) {
puldefine(proc->proc_name, proc->proc_num);
}
pprocdef(proc, vers);
}
}
}
pprocdef(proc, vp)
proc_list *proc;
version_list *vp;
{
f_print(fout, "extern ");
if (proc->res_prefix) {
if (streq(proc->res_prefix, "enum")) {
f_print(fout, "enum ");
} else {
f_print(fout, "struct ");
}
}
if (streq(proc->res_type, "bool")) {
f_print(fout, "bool_t *");
} else if (streq(proc->res_type, "string")) {
f_print(fout, "char **");
} else {
f_print(fout, "%s *", fixtype(proc->res_type));
}
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "();\n");
}
static
penumdef(def)
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++);
}
}
f_print(fout, ",\n");
}
f_print(fout, "};\n");
f_print(fout, "typedef enum %s %s;\n", name, name);
}
static
ptypedef(def)
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) {
s_print(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");
}
}
static
pdeclaration(name, dec, tab)
char *name;
declaration *dec;
int tab;
{
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) {
s_print(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;
}
}
f_print(fout, ";\n");
}
static
undefined2(type, stop)
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);
} else if (streq(def->def_name, type)) {
return (0);
}
}
}
return (1);
}