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Sourcecode: glibc version File versions

rpc_hout.c

/*
 * 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
 */

/*
 * From: @(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI
 */
char hout_rcsid[] =
  "$Id: rpc_hout.c,v 1.7 2001/08/28 09:17:24 drepper Exp $";

/*
 * 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, 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;
}

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