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  * $DragonFly: src/usr.bin/rpcgen/rpc_tblout.c,v 1.4 2004/06/19 16:40:36 joerg Exp $
  32  */
  33
  34 /*
  35  * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
  36  * Copyright (C) 1989, Sun Microsystems, Inc.
  37  */
  38 #include <err.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include "rpc_parse.h"
  42 #include "rpc_scan.h"
  43 #include "rpc_util.h"
  44
  45 #define TABSIZE         8
  46 #define TABCOUNT        5
  47 #define TABSTOP         (TABSIZE*TABCOUNT)
  48
  49 static char tabstr[TABCOUNT+1] = "\t\t\t\t\t";
  50
  51 static char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
  52 static char tbl_end[] = "};\n";
  53
  54 static char null_entry[] = "\n\t(char *(*)())0,\n\
  55  \t(xdrproc_t) xdr_void,\t\t\t0,\n\
  56  \t(xdrproc_t) xdr_void,\t\t\t0,\n";
  57
  58
  59 static char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n\n";
  60
  61 static void     write_table(definition *);
  62 static void     printit(const  char *, const char *);
  63
  64 void
  65 write_tables(void)
  66 {
  67         list *l;
  68         definition *def;
  69
  70         f_print(fout, "\n");
  71         for (l = defined; l != NULL; l = l->next) {
  72                 def = (definition *) l->val;
  73                 if (def->def_kind == DEF_PROGRAM) {
  74                         write_table(def);
  75                 }
  76         }
  77 }
  78
  79 static void
  80 write_table(definition *def)
  81 {
  82         version_list *vp;
  83         proc_list *proc;
  84         int current;
  85         int expected;
  86         char progvers[100];
  87         int warning;
  88
  89         for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
  90                 warning = 0;
  91                 s_print(progvers, "%s_%s",
  92                     locase(def->def_name), vp->vers_num);
  93                 /* print the table header */
  94                 f_print(fout, tbl_hdr, progvers);
  95
  96                 if (nullproc(vp->procs)) {
  97                         expected = 0;
  98                 } else {
  99                         expected = 1;
 100                         f_print(fout, null_entry);
 101                 }
 102                 for (proc = vp->procs; proc != NULL; proc = proc->next) {
 103                         current = atoi(proc->proc_num);
 104                         if (current != expected++) {
 105                                 f_print(fout,
 106                         "\n/*\n * WARNING: table out of order\n */\n");
 107                                 if (warning == 0) {
 108                                         warnx("WARNING %s table is out of order", progvers);
 109                                         warning = 1;
 110                                         nonfatalerrors = 1;
 111                                 }
 112                                 expected = current + 1;
 113                         }
 114                         f_print(fout, "\n\t(char *(*)())RPCGEN_ACTION(");
 115
 116                         /* routine to invoke */
 117                         if(!newstyle)
 118                                 pvname_svc(proc->proc_name, vp->vers_num);
 119                         else {
 120                                 if (newstyle)
 121                                         f_print(fout, "_");   /* calls internal func */
 122                                 pvname(proc->proc_name, vp->vers_num);
 123                         }
 124                         f_print(fout, "),\n");
 125
 126                         /* argument info */
 127                         if (proc->arg_num > 1) {
 128                                 printit(NULL, proc->args.argname);
 129                         } else {
 130                                 /*
 131                                  * do we have to do something special for
 132                                  * newstyle
 133                                  */
 134                                 printit(proc->args.decls->decl.prefix,
 135                                         proc->args.decls->decl.type);
 136                         }
 137                         /* result info */
 138                         printit(proc->res_prefix, proc->res_type);
 139                 }
 140
 141                 /* print the table trailer */
 142                 f_print(fout, tbl_end);
 143                 f_print(fout, tbl_nproc, progvers, progvers, progvers);
 144         }
 145 }
 146
 147 static void
 148 printit(const char *prefix, const char *type)
 149 {
 150         int len;
 151         int tabs;
 152
 153
 154         len = fprintf(fout, "\txdr_%s,", stringfix(type));
 155         /* account for leading tab expansion */
 156         len += TABSIZE - 1;
 157         /* round up to tabs required */
 158         tabs = (TABSTOP - len + TABSIZE - 1)/TABSIZE;
 159         f_print(fout, "%s", &tabstr[TABCOUNT-tabs]);
 160
 161         if (streq(type, "void")) {
 162                 f_print(fout, "0");
 163         } else {
 164                 f_print(fout, "sizeof ( ");
 165                 /* XXX: should "follow" be 1 ??? */
 166                 ptype(prefix, type, 0);
 167                 f_print(fout, ")");
 168         }
 169         f_print(fout, ",\n");
 170 }