usr.bin/rpcgen/rpc_tblout.c

   1 /*
   2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   3  * unrestricted use provided that this legend is included on all tape
   4  * media and as a part of the software program in whole or part.  Users
   5  * may copy or modify Sun RPC without charge, but are not authorized
   6  * to license or distribute it to anyone else except as part of a product or
   7  * program developed by the user.
   8  *
   9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  12  *
  13  * Sun RPC is provided with no support and without any obligation on the
  14  * part of Sun Microsystems, Inc. to assist in its use, correction,
  15  * modification or enhancement.
  16  *
  17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  19  * OR ANY PART THEREOF.
  20  *
  21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  22  * or profits or other special, indirect and consequential damages, even if
  23  * Sun has been advised of the possibility of such damages.
  24  *
  25  * Sun Microsystems, Inc.
  26  * 2550 Garcia Avenue
  27  * Mountain View, California  94043
  28  *
  29  * @(#)rpc_tblout.c     1.11    93/07/05 SMI; 1.4 89/02/22 (C) 1988 SMI
  30  * $FreeBSD: src/usr.bin/rpcgen/rpc_tblout.c,v 1.12 2005/11/13 21:17:24 dwmalone Exp $
  31  */
  32
  33 /*
  34  * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
  35  * Copyright (C) 1989, Sun Microsystems, Inc.
  36  */
  37 #include <err.h>
  38 #include <stdio.h>
  39 #include <string.h>
  40 #include "rpc_parse.h"
  41 #include "rpc_scan.h"
  42 #include "rpc_util.h"
  43
  44 #define TABSIZE         8
  45 #define TABCOUNT        5
  46 #define TABSTOP         (TABSIZE*TABCOUNT)
  47
  48 static char tabstr[TABCOUNT+1] = "\t\t\t\t\t";
  49
  50 static char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
  51 static char tbl_end[] = "};\n";
  52
  53 static char null_entry[] = "\n\t(char *(*)())0,\n\
  54  \t(xdrproc_t) xdr_void,\t\t\t0,\n\
  55  \t(xdrproc_t) xdr_void,\t\t\t0,\n";
  56
  57
  58 static char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n\n";
  59
  60 static void     write_table(definition *);
  61 static void     printit(const  char *, const char *);
  62
  63 void
  64 write_tables(void)
  65 {
  66         list *l;
  67         definition *def;
  68
  69         f_print(fout, "\n");
  70         for (l = defined; l != NULL; l = l->next) {
  71                 def = (definition *) l->val;
  72                 if (def->def_kind == DEF_PROGRAM) {
  73                         write_table(def);
  74                 }
  75         }
  76 }
  77
  78 static void
  79 write_table(definition *def)
  80 {
  81         version_list *vp;
  82         proc_list *proc;
  83         int current;
  84         int expected;
  85         char progvers[100];
  86         int warning;
  87
  88         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
  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                         expected = 0;
  97                 } else {
  98                         expected = 1;
  99                         f_print(fout, "%s", null_entry);
 100                 }
 101                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 102                         current = atoi(proc->proc_num);
 103                         if (current != expected++) {
 104                                 f_print(fout,
 105                         "\n/*\n * WARNING: table out of order\n */\n");
 106                                 if (warning == 0) {
 107                                         warnx("WARNING %s table is out of order", progvers);
 108                                         warning = 1;
 109                                         nonfatalerrors = 1;
 110                                 }
 111                                 expected = current + 1;
 112                         }
 113                         f_print(fout, "\n\t(char *(*)())RPCGEN_ACTION(");
 114
 115                         /* routine to invoke */
 116                         if(!newstyle)
 117                                 pvname_svc(proc->proc_name, vp->vers_num);
 118                         else {
 119                                 if (newstyle)
 120                                         f_print(fout, "_");   /* calls internal func */
 121                                 pvname(proc->proc_name, vp->vers_num);
 122                         }
 123                         f_print(fout, "),\n");
 124
 125                         /* argument info */
 126                         if (proc->arg_num > 1) {
 127                                 printit(NULL, proc->args.argname);
 128                         } else {
 129                                 /*
 130                                  * do we have to do something special for
 131                                  * newstyle
 132                                  */
 133                                 printit(proc->args.decls->decl.prefix,
 134                                         proc->args.decls->decl.type);
 135                         }
 136                         /* result info */
 137                         printit(proc->res_prefix, proc->res_type);
 138                 }
 139
 140                 /* print the table trailer */
 141                 f_print(fout, "%s", tbl_end);
 142                 f_print(fout, tbl_nproc, progvers, progvers, progvers);
 143         }
 144 }
 145
 146 static void
 147 printit(const char *prefix, const char *type)
 148 {
 149         int len;
 150         int tabs;
 151
 152
 153         len = fprintf(fout, "\txdr_%s,", stringfix(type));
 154         /* account for leading tab expansion */
 155         len += TABSIZE - 1;
 156         /* round up to tabs required */
 157         tabs = (TABSTOP - len + TABSIZE - 1)/TABSIZE;
 158         f_print(fout, "%s", &tabstr[TABCOUNT-tabs]);
 159
 160         if (streq(type, "void")) {
 161                 f_print(fout, "0");
 162         } else {
 163                 f_print(fout, "sizeof ( ");
 164                 /* XXX: should "follow" be 1 ??? */
 165                 ptype(prefix, type, 0);
 166                 f_print(fout, ")");
 167         }
 168         f_print(fout, ",\n");
 169 }