rpc_tblout.c revision 149709 
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
30#if 0
31#ifndef lint
32#ident	"@(#)rpc_tblout.c	1.11	93/07/05 SMI"
33static char sccsid[] = "@(#)rpc_tblout.c 1.4 89/02/22 (C) 1988 SMI";
34#endif
35#endif
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: head/usr.bin/rpcgen/rpc_tblout.c 149709 2005-09-02 10:23:26Z stefanf $");
39
40/*
41 * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
42 * Copyright (C) 1989, Sun Microsystems, Inc.
43 */
44#include <err.h>
45#include <stdio.h>
46#include <string.h>
47#include "rpc_parse.h"
48#include "rpc_scan.h"
49#include "rpc_util.h"
50
51#define TABSIZE		8
52#define TABCOUNT	5
53#define TABSTOP		(TABSIZE*TABCOUNT)
54
55static char tabstr[TABCOUNT+1] = "\t\t\t\t\t";
56
57static char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
58static char tbl_end[] = "};\n";
59
60static char null_entry[] = "\n\t(char *(*)())0,\n\
61 \t(xdrproc_t) xdr_void,\t\t\t0,\n\
62 \t(xdrproc_t) xdr_void,\t\t\t0,\n";
63
64
65static char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n\n";
66
67extern int nullproc( proc_list * );
68static void write_table( definition * );
69static void printit( char *, char * );
70
71void
72write_tables()
73{
74	list *l;
75	definition *def;
76
77	f_print(fout, "\n");
78	for (l = defined; l != NULL; l = l->next) {
79		def = (definition *) l->val;
80		if (def->def_kind == DEF_PROGRAM) {
81			write_table(def);
82		}
83	}
84}
85
86static void
87write_table(def)
88	definition *def;
89{
90	version_list *vp;
91	proc_list *proc;
92	int current;
93	int expected;
94	char progvers[100];
95	int warning;
96
97	for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
98		warning = 0;
99		s_print(progvers, "%s_%s",
100		    locase(def->def_name), vp->vers_num);
101		/* print the table header */
102		f_print(fout, tbl_hdr, progvers);
103
104		if (nullproc(vp->procs)) {
105			expected = 0;
106		} else {
107			expected = 1;
108			f_print(fout, null_entry);
109		}
110		for (proc = vp->procs; proc != NULL; proc = proc->next) {
111			current = atoi(proc->proc_num);
112			if (current != expected++) {
113				f_print(fout,
114			"\n/*\n * WARNING: table out of order\n */\n");
115				if (warning == 0) {
116					warnx("WARNING %s table is out of order", progvers);
117					warning = 1;
118					nonfatalerrors = 1;
119				}
120				expected = current + 1;
121			}
122			f_print(fout, "\n\t(char *(*)())RPCGEN_ACTION(");
123
124			/* routine to invoke */
125			if( !newstyle )
126			  pvname_svc(proc->proc_name, vp->vers_num);
127			else {
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
151static void
152printit(prefix, type)
153	char *prefix;
154	char *type;
155{
156	int len;
157	int tabs;
158
159
160 	len = fprintf(fout, "\txdr_%s,", stringfix(type));
161	/* account for leading tab expansion */
162	len += TABSIZE - 1;
163	/* round up to tabs required */
164	tabs = (TABSTOP - len + TABSIZE - 1)/TABSIZE;
165	f_print(fout, "%s", &tabstr[TABCOUNT-tabs]);
166
167	if (streq(type, "void")) {
168		f_print(fout, "0");
169	} else {
170		f_print(fout, "sizeof ( ");
171		/* XXX: should "follow" be 1 ??? */
172		ptype(prefix, type, 0);
173		f_print(fout, ")");
174	}
175	f_print(fout, ",\n");
176}
177