tools/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 or with the express written consent of
   8  * Sun Microsystems, Inc.
   9  *
  10  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  11  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  12  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  13  *
  14  * Sun RPC is provided with no support and without any obligation on the
  15  * part of Sun Microsystems, Inc. to assist in its use, correction,
  16  * modification or enhancement.
  17  *
  18  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  19  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  20  * OR ANY PART THEREOF.
  21  *
  22  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  23  * or profits or other special, indirect and consequential damages, even if
  24  * Sun has been advised of the possibility of such damages.
  25  *
  26  * Sun Microsystems, Inc.
  27  * 2550 Garcia Avenue
  28  * Mountain View, California  94043
  29  */
  30
  31 #ifndef lint
  32 static char sccsid[] = "@(#)rpc_tblout.c 1.4 89/02/22 (C) 1988 SMI";
  33 #endif
  34
  35 /*
  36  * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
  37  */
  38 #include <stdio.h>
  39 #include <string.h>
  40 #include "rpc_parse.h"
  41 #include "rpc_util.h"
  42 #include "rpc_output.h"
  43
  44 static void     write_table(definition *def);
  45 static void     printit(char *prefix, char *type);
  46
  47 #define TABSIZE         8
  48 #define TABCOUNT        5
  49 #define TABSTOP         (TABSIZE*TABCOUNT)
  50
  51 static char tabstr[TABCOUNT+1] = "\t\t\t\t\t";
  52
  53 static char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
  54 static char tbl_end[] = "};\n";
  55
  56 static char null_entry[] = "\n\t(char *(*)())0,\n\
  57  \t(xdrproc_t) xdr_void,\t\t\t0,\n\
  58  \t(xdrproc_t) xdr_void,\t\t\t0,\n";
  59
  60
  61 static char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n\n";
  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, 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                                         f_print(stderr,
 108                                     "WARNING %s table is out of order\n",
 109                                             progvers);
 110                                         warning = 1;
 111                                         nonfatalerrors = 1;
 112                                 }
 113                                 expected = current + 1;
 114                         }
 115                         f_print(fout, "\n\t(char *(*)())RPCGEN_ACTION(");
 116
 117                         /* routine to invoke */
 118                         if( Cflag && !newstyle )
 119                           pvname_svc(proc->proc_name, vp->vers_num);
 120                         else {
 121                           if( newstyle )
 122                             f_print( fout, "_");   /* calls internal func */
 123                           pvname(proc->proc_name, vp->vers_num);
 124                         }
 125                         f_print(fout, "),\n");
 126
 127                         /* argument info */
 128                         if( proc->arg_num > 1 )
 129                           printit((char*) NULL, proc->args.argname );
 130                         else
 131                           /* do we have to do something special for newstyle */
 132                           printit( proc->args.decls->decl.prefix,
 133                                   proc->args.decls->decl.type );
 134                         /* result info */
 135                         printit(proc->res_prefix, proc->res_type);
 136                 }
 137
 138                 /* print the table trailer */
 139                 f_print(fout, tbl_end);
 140                 f_print(fout, tbl_nproc, progvers, progvers, progvers);
 141         }
 142 }
 143
 144 static void
 145 printit(char *prefix, char *type)
 146 {
 147         int len;
 148         int tabs;
 149
 150
 151         len = fprintf(fout, "\txdr_%s,", stringfix(type));
 152         /* account for leading tab expansion */
 153         len += TABSIZE - 1;
 154         /* round up to tabs required */
 155         tabs = (TABSTOP - len + TABSIZE - 1)/TABSIZE;
 156         f_print(fout, "%s", &tabstr[TABCOUNT-tabs]);
 157
 158         if (streq(type, "void")) {
 159                 f_print(fout, "0");
 160         } else {
 161                 f_print(fout, "sizeof ( ");
 162                 /* XXX: should "follow" be 1 ??? */
 163                 ptype(prefix, type, 0);
 164                 f_print(fout, ")");
 165         }
 166         f_print(fout, ",\n");
 167 }