sunrpc/rpc_tblout.c

   1 /*
   2  * From: @(#)rpc_tblout.c 1.4 89/02/22 (C) 1988 SMI
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  *       notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  *       copyright notice, this list of conditions and the following
  12  *       disclaimer in the documentation and/or other materials
  13  *       provided with the distribution.
  14  *     * Neither the name of Sun Microsystems, Inc. nor the names of its
  15  *       contributors may be used to endorse or promote products derived
  16  *       from this software without specific prior written permission.
  17  *
  18  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  21  *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  22  *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  23  *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  25  *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
  34  */
  35 #include <stdio.h>
  36 #include <string.h>
  37 #include "rpc_parse.h"
  38 #include "rpc_util.h"
  39 #include "proto.h"
  40
  41 #define TABSIZE         8
  42 #define TABCOUNT        5
  43 #define TABSTOP         (TABSIZE*TABCOUNT)
  44
  45 static const char tabstr[TABCOUNT + 1] = "\t\t\t\t\t";
  46
  47 static const char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
  48 static const char tbl_end[] = "};\n";
  49
  50 static const char null_entry[] = "\n\t(char *(*)())0,\n\
  51  \t(xdrproc_t) xdr_void,\t\t\t0,\n\
  52  \t(xdrproc_t) xdr_void,\t\t\t0,\n";
  53
  54
  55 static const char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n\n";
  56
  57 static void write_table (const definition * def);
  58 static void printit (const char *prefix, const char *type);
  59
  60 void
  61 write_tables (void)
  62 {
  63   list *l;
  64   definition *def;
  65
  66   f_print (fout, "\n");
  67   for (l = defined; l != NULL; l = l->next)
  68     {
  69       def = (definition *) l->val;
  70       if (def->def_kind == DEF_PROGRAM)
  71         {
  72           write_table (def);
  73         }
  74     }
  75 }
  76
  77 static void
  78 write_table (const definition * def)
  79 {
  80   version_list *vp;
  81   proc_list *proc;
  82   int current;
  83   int expected;
  84   char progvers[100];
  85   int warning;
  86
  87   for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
  88     {
  89       warning = 0;
  90       s_print (progvers, "%s_%s",
  91                locase (def->def_name), vp->vers_num);
  92       /* print the table header */
  93       f_print (fout, tbl_hdr, progvers);
  94
  95       if (nullproc (vp->procs))
  96         {
  97           expected = 0;
  98         }
  99       else
 100         {
 101           expected = 1;
 102           f_print (fout, null_entry);
 103         }
 104       for (proc = vp->procs; proc != NULL; proc = proc->next)
 105         {
 106           current = atoi (proc->proc_num);
 107           if (current != expected++)
 108             {
 109               f_print (fout,
 110                        "\n/*\n * WARNING: table out of order\n */\n");
 111               if (warning == 0)
 112                 {
 113                   f_print (stderr,
 114                            "WARNING %s table is out of order\n",
 115                            progvers);
 116                   warning = 1;
 117                   nonfatalerrors = 1;
 118                 }
 119               expected = current + 1;
 120             }
 121           f_print (fout, "\n\t(char *(*)())RPCGEN_ACTION(");
 122
 123           /* routine to invoke */
 124           if (Cflag && !newstyle)
 125             pvname_svc (proc->proc_name, vp->vers_num);
 126           else
 127             {
 128               if (newstyle)
 129                 f_print (fout, "_");    /* calls internal func */
 130               pvname (proc->proc_name, vp->vers_num);
 131             }
 132           f_print (fout, "),\n");
 133
 134           /* argument info */
 135           if (proc->arg_num > 1)
 136             printit ((char *) NULL, proc->args.argname);
 137           else
 138             /* do we have to do something special for newstyle */
 139             printit (proc->args.decls->decl.prefix,
 140                      proc->args.decls->decl.type);
 141           /* result info */
 142           printit (proc->res_prefix, proc->res_type);
 143         }
 144
 145       /* print the table trailer */
 146       f_print (fout, tbl_end);
 147       f_print (fout, tbl_nproc, progvers, progvers, progvers);
 148     }
 149 }
 150
 151 static void
 152 printit (const char *prefix, const char *type)
 153 {
 154   int len;
 155   int tabs;
 156
 157
 158   len = fprintf (fout, "\txdr_%s,", stringfix (type));
 159   /* account for leading tab expansion */
 160   len += TABSIZE - 1;
 161   /* round up to tabs required */
 162   tabs = (TABSTOP - len + TABSIZE - 1) / TABSIZE;
 163   f_print (fout, "%s", &tabstr[TABCOUNT - tabs]);
 164
 165   if (streq (type, "void"))
 166     {
 167       f_print (fout, "0");
 168     }
 169   else
 170     {
 171       f_print (fout, "sizeof ( ");
 172       /* XXX: should "follow" be 1 ??? */
 173       ptype (prefix, type, 0);
 174       f_print (fout, ")");
 175     }
 176   f_print (fout, ",\n");
 177 }