rup client

[unix-history] / usr.bin / 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[] = "from: @(#)rpc_hout.c 1.6 87/07/28 (C) 1987 SMI";*/
static char rcsid[] = "$Id: rpc_hout.c,v 1.3 1993/08/01 18:09:21 mycroft Exp $";
#endif

static int pconstdef(), pstructdef(), puniondef(), pdefine(), pprogramdef(),
          penumdef(), ptypedef(), pdeclaration(), undefined2();

/*
* 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);
}