/*
* From: @(#)rpc_hout.c 1.12 89/02/22
*
* Copyright (c) 2010, Oracle America, Inc.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the "Oracle America, Inc." nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* rpc_hout.c, Header file outputter for the RPC protocol compiler
*/
#include <stdio.h>
#include <ctype.h>
#include "rpc_parse.h"
#include "rpc_util.h"
#include "proto.h"
static void pconstdef (definition * def);
static void pargdef (definition * def);
static void pstructdef (definition * def);
static void puniondef (definition * def);
static void pdefine (const char *name, const char *num);
static int define_printed (proc_list * stop, version_list * start);
static void pprogramdef (definition * def);
static void parglist (proc_list * proc, const char *addargtype);
static void penumdef (definition * def);
static void ptypedef (definition * def);
static int undefined2 (const char *type, const char *stop);
/* store away enough information to allow the XDR functions to be spat
out at the end of the file */
static void
storexdrfuncdecl (const char *name, int pointerp)
{
xdrfunc * xdrptr;
xdrptr = (xdrfunc *) malloc(sizeof (struct xdrfunc));
xdrptr->name = (char *)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;
}
}
/*
* 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;
default:
break;
/* ?... shouldn't happen I guess */
}
}
void
print_xdr_func_def (char *name, int pointerp, int i)
{
if (i == 2)
{
f_print (fout, "extern bool_t xdr_%s ();\n", name);
return;
}
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;
const 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;
const 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;
const 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 (const char *name, const char *num)
{
f_print (fout, "#define %s %s\n", name, num);
}
static int
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;
}
else if (streq (proc->proc_name, stop->proc_name))
{
return 1;
}
}
}
abort ();
/* NOTREACHED */
}
static void
pfreeprocdef (const char *name, const 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;
const char *ext;
pargdef (def);
pdefine (def->def_name, def->def.pr.prog_num);
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 %s_%s_nproc;\n",
locase (def->def_name), vers->vers_num);
}
pdefine (vers->vers_name, vers->vers_num);
/*
* 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))
{
pdefine (proc->proc_name, proc->proc_num);
}
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))
{
pdefine(proc->proc_name, proc->proc_num);
}
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,
const 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, const char *addargtype)
{
decl_list *dl;
f_print(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)
f_print (fout, "*"); /* old style passes by reference */
f_print (fout, ", ");
}
}
if (mtflag)
{
ptype(proc->res_prefix, proc->res_type, 1);
f_print(fout, "*, ");
}
f_print (fout, "%s);\n", addargtype);
}
static void
penumdef (definition *def)
{
const char *name = def->def_name;
enumval_list *l;
const 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 void
ptypedef (definition *def)
{
const char *name = def->def_name;
const 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");
}
}
void
pdeclaration (const char *name, declaration * dec, int tab,
const char *separator)
{
char buf[8]; /* enough to hold "struct ", include NUL */
const char *prefix;
const 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, "%s", separator);
}
static int
undefined2 (const char *type, const 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;
}