OpenBSD-4.6/usr.bin/rpcgen/rpc_hout.c
/* $OpenBSD: rpc_hout.c,v 1.17 2007/10/03 14:35:48 weingart Exp $ */
/* $NetBSD: rpc_hout.c,v 1.4 1995/06/11 21:49:55 pk Exp $ */
/*
* 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 or with the express written consent of
* Sun Microsystems, Inc.
*
* 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 const char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI";
#endif
/*
* rpc_hout.c, Header file outputter for the RPC protocol compiler
*/
#include <sys/cdefs.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "rpc_parse.h"
#include "rpc_util.h"
static void pconstdef(definition *);
static void pargdef(definition *);
static void pstructdef(definition *);
static void puniondef(definition *);
static void pprogramdef(definition *);
static void penumdef(definition *);
static void ptypedef(definition *);
static void pdefine(char *, char *);
static void puldefine(char *, char *);
static int define_printed(proc_list *, version_list *);
static int undefined2(char *, char *);
static void parglist(proc_list *, char *);
void pxdrfuncdecl(char *, int);
void pprocdef(proc_list *, version_list *, char *, int, int);
void pdeclaration(char *, declaration *, int, char *);
/*
* Print the C-version of an xdr definition
*/
void
print_datadef(def)
definition *def;
{
if (def->def_kind == DEF_PROGRAM) /* handle data only */
return;
if (def->def_kind != DEF_CONST)
fprintf(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) {
pxdrfuncdecl(def->def_name,
def->def_kind != DEF_TYPEDEF ||
!isvectordef(def->def.ty.old_type, def->def.ty.rel));
}
}
void
print_funcdef(def)
definition *def;
{
switch (def->def_kind) {
case DEF_PROGRAM:
fprintf(fout, "\n");
pprogramdef(def);
break;
}
}
void
pxdrfuncdecl(name, pointerp)
char *name;
int pointerp;
{
fprintf(fout,"#ifdef __cplusplus\n");
fprintf(fout, "extern \"C\" bool_t xdr_%s(XDR *, %s %s);\n",
name, name, pointerp ? ("*") : "");
fprintf(fout,"#elif defined(__STDC__)\n");
fprintf(fout, "extern bool_t xdr_%s(XDR *, %s %s);\n",
name, name, pointerp ? ("*") : "");
fprintf(fout,"#else /* Old Style C */\n");
fprintf(fout, "bool_t xdr_%s();\n", name);
fprintf(fout,"#endif /* Old Style C */\n\n");
}
static void
pconstdef(def)
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(def)
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;
fprintf(fout, "struct %s {\n", name);
for (l = plist->args.decls;
l != NULL; l = l->next) {
pdeclaration(name, &l->decl, 1, ";\n");
}
fprintf(fout, "};\n");
fprintf(fout, "typedef struct %s %s;\n", name, name);
pxdrfuncdecl(name, NULL);
fprintf(fout, "\n");
}
}
}
static void
pstructdef(def)
definition *def;
{
char *name = def->def_name;
decl_list *l;
fprintf(fout, "struct %s {\n", name);
for (l = def->def.st.decls; l != NULL; l = l->next)
pdeclaration(name, &l->decl, 1, ";\n");
fprintf(fout, "};\n");
fprintf(fout, "typedef struct %s %s;\n", name, name);
}
static void
puniondef(def)
definition *def;
{
case_list *l;
char *name = def->def_name;
declaration *decl;
fprintf(fout, "struct %s {\n", name);
decl = &def->def.un.enum_decl;
if (streq(decl->type, "bool")) {
fprintf(fout, "\tbool_t %s;\n", decl->name);
} else {
fprintf(fout, "\t%s %s;\n", decl->type, decl->name);
}
fprintf(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");
}
fprintf(fout, "\t} %s_u;\n", name);
fprintf(fout, "};\n");
fprintf(fout, "typedef struct %s %s;\n", name, name);
}
static void
pdefine(name, num)
char *name;
char *num;
{
fprintf(fout, "#define %s %s\n", name, num);
}
static void
puldefine(name, num)
char *name;
char *num;
{
fprintf(fout, "#define %s ((u_long)%s)\n", name, num);
}
static int
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 void
pprogramdef(def)
definition *def;
{
version_list *vers;
proc_list *proc;
int i;
char *ext;
pargdef(def);
puldefine(def->def_name, def->def.pr.prog_num);
for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
if (tblflag) {
fprintf(fout, "extern struct rpcgen_table %s_%s_table[];\n",
locase(def->def_name), vers->vers_num);
fprintf(fout, "extern %s_%s_nproc;\n",
locase(def->def_name), vers->vers_num);
}
puldefine(vers->vers_name, vers->vers_num);
/*
* Print out 3 definitions, one for ANSI-C, another for C++,
* a third for old style C
*/
for (i=0; i<3; i++) {
if (i==0) {
fprintf(fout,"\n#ifdef __cplusplus\n");
ext = "extern \"C\" ";
} else if (i==1) {
fprintf(fout,"\n#elif defined(__STDC__)\n");
ext = "extern ";
} else {
fprintf(fout,"\n#else /* Old Style 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);
fprintf(fout,"%s",ext);
pprocdef(proc, vers, "CLIENT *", 0,i);
fprintf(fout,"%s",ext);
pprocdef(proc, vers, "struct svc_req *", 1,i);
}
}
fprintf(fout,"#endif /* Old Style C */\n");
}
}
void
pprocdef(proc, vp, addargtype, server_p,mode)
proc_list *proc;
version_list *vp;
char *addargtype;
int server_p;
int mode;
{
ptype(proc->res_prefix, proc->res_type, 1);
fprintf(fout, "* ");
if (server_p)
pvname_svc(proc->proc_name, vp->vers_num);
else
pvname(proc->proc_name, vp->vers_num);
/*
* mode 0 == cplusplus, mode 1 = ANSI-C, mode 2 = old style C
*/
if (mode == 0 || mode == 1)
parglist(proc, addargtype);
else
fprintf(fout, "();\n");
}
/* print out argument list of procedure */
static void
parglist(proc, addargtype)
proc_list *proc;
char *addargtype;
{
decl_list *dl;
fprintf(fout,"(");
if (proc->arg_num < 2 && newstyle &&
streq(proc->args.decls->decl.type, "void")) {
/* 0 argument in new style: do nothing */
} else {
for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
ptype(dl->decl.prefix, dl->decl.type, 1);
if (!newstyle)
fprintf(fout, "*"); /* old style passes by reference */
fprintf(fout, ", ");
}
}
fprintf(fout, "%s);\n", addargtype);
}
static void
penumdef(def)
definition *def;
{
char *name = def->def_name;
enumval_list *l;
char *last = NULL;
int count = 0;
fprintf(fout, "enum %s {\n", name);
for (l = def->def.en.vals; l != NULL; l = l->next) {
fprintf(fout, "\t%s", l->name);
if (l->assignment) {
fprintf(fout, " = %s", l->assignment);
last = l->assignment;
count = 1;
} else {
if (last == NULL) {
fprintf(fout, " = %d", count++);
} else {
fprintf(fout, " = %s + %d", last, count++);
}
}
if (l->next)
fprintf(fout, ",\n");
else
fprintf(fout, "\n");
}
fprintf(fout, "};\n");
fprintf(fout, "typedef enum %s %s;\n", name, name);
}
static void
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) {
snprintf(prefix, sizeof prefix, "%s ", def->def.ty.old_prefix);
} else {
prefix[0] = 0;
}
fprintf(fout, "typedef ");
switch (rel) {
case REL_ARRAY:
fprintf(fout, "struct {\n");
fprintf(fout, "\tu_int %s_len;\n", name);
fprintf(fout, "\t%s%s *%s_val;\n", prefix, old, name);
fprintf(fout, "} %s", name);
break;
case REL_POINTER:
fprintf(fout, "%s%s *%s", prefix, old, name);
break;
case REL_VECTOR:
fprintf(fout, "%s%s %s[%s]", prefix, old, name,
def->def.ty.array_max);
break;
case REL_ALIAS:
fprintf(fout, "%s%s %s", prefix, old, name);
break;
}
fprintf(fout, ";\n");
}
}
void
pdeclaration(name, dec, tab, separator)
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) {
fprintf(fout, "struct ");
}
if (streq(dec->type, "string")) {
fprintf(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) {
snprintf(buf, sizeof buf, "%s ", dec->prefix);
prefix = buf;
}
type = dec->type;
}
switch (dec->rel) {
case REL_ALIAS:
fprintf(fout, "%s%s %s", prefix, type, dec->name);
break;
case REL_VECTOR:
fprintf(fout, "%s%s %s[%s]", prefix, type, dec->name,
dec->array_max);
break;
case REL_POINTER:
fprintf(fout, "%s%s *%s", prefix, type, dec->name);
break;
case REL_ARRAY:
fprintf(fout, "struct {\n");
tabify(fout, tab);
fprintf(fout, "\tu_int %s_len;\n", dec->name);
tabify(fout, tab);
fprintf(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
tabify(fout, tab);
fprintf(fout, "} %s", dec->name);
break;
}
}
fprintf(fout, "%s", separator);
}
static int
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);
}