1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27/* All Rights Reserved */
28/*
29 * University Copyright- Copyright (c) 1982, 1986, 1988
30 * The Regents of the University of California
31 * All Rights Reserved
32 *
33 * University Acknowledgment- Portions of this document are derived from
34 * software developed by the University of California, Berkeley, and its
35 * contributors.
36 */
37
38/*
39 * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
40 */
41#include <stdio.h>
42#include <string.h>
43#include "rpc_parse.h"
44#include "rpc_util.h"
45
46extern int nullproc(proc_list *);
47
48static void write_table(definition *);
49static void printit(char *, char *);
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_b[] = "\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
64static char null_entry[] = "\n\t(void *(*)())0,\n"
65			" \t(xdrproc_t)xdr_void,\t\t\t0,\n"
66			" \t(xdrproc_t)xdr_void,\t\t\t0,\n";
67
68
69static char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)"
70				"/sizeof(%s_table[0]);\n\n";
71
72void
73write_tables(void)
74{
75	list *l;
76	definition *def;
77
78	f_print(fout, "\n");
79	for (l = defined; l != NULL; l = l->next) {
80		def = (definition *)l->val;
81		if (def->def_kind == DEF_PROGRAM) {
82			write_table(def);
83		}
84	}
85}
86
87static void
88write_table(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		(void) snprintf(progvers, sizeof (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			if (tirpcflag)
109				f_print(fout, null_entry);
110			else
111				f_print(fout, null_entry_b);
112		}
113		for (proc = vp->procs; proc != NULL; proc = proc->next) {
114			current = atoi(proc->proc_num);
115			if (current != expected++) {
116				f_print(fout,
117			"\n/*\n * WARNING: table out of order\n */\n");
118				if (warning == 0) {
119					f_print(stderr,
120				    "WARNING %s table is out of order\n",
121					    progvers);
122					warning = 1;
123					nonfatalerrors = 1;
124				}
125				expected = current + 1;
126			}
127			if (tirpcflag)
128				f_print(fout,
129				    "\n\t(void *(*)())RPCGEN_ACTION(");
130			else
131				f_print(fout,
132				    "\n\t(char *(*)())RPCGEN_ACTION(");
133
134			/* routine to invoke */
135			if (Cflag && !newstyle)
136				pvname_svc(proc->proc_name, vp->vers_num);
137			else {
138				if (newstyle) /* calls internal func */
139					f_print(fout, "_");
140				pvname(proc->proc_name, vp->vers_num);
141			}
142			f_print(fout, "),\n");
143
144			/* argument info */
145			if (proc->arg_num > 1)
146				printit(NULL, proc->args.argname);
147			else
148			/* do we have to do something special for newstyle */
149				printit(proc->args.decls->decl.prefix,
150				    proc->args.decls->decl.type);
151			/* result info */
152			printit(proc->res_prefix, proc->res_type);
153		}
154
155		/* print the table trailer */
156		f_print(fout, tbl_end);
157		f_print(fout, tbl_nproc, progvers, progvers, progvers);
158	}
159}
160
161static void
162printit(char *prefix, char *type)
163{
164	int len;
165	int tabs;
166
167
168	if (streq(type, "oneway"))
169		len = fprintf(fout, "\t(xdrproc_t)xdr_void,");
170	else
171		len = fprintf(fout, "\t(xdrproc_t)xdr_%s,", stringfix(type));
172	/* account for leading tab expansion */
173	len += TABSIZE - 1;
174	if (len >= TABSTOP) {
175		f_print(fout, "\n");
176		len = 0;
177	}
178	/* round up to tabs required */
179	tabs = (TABSTOP - len + TABSIZE - 1)/TABSIZE;
180	f_print(fout, "%s", &tabstr[TABCOUNT-tabs]);
181
182	if (streq(type, "void") || streq(type, "oneway")) {
183		f_print(fout, "0");
184	} else {
185		f_print(fout, "sizeof ( ");
186		/* XXX: should "follow" be 1 ??? */
187		ptype(prefix, type, 0);
188		f_print(fout, ")");
189	}
190	f_print(fout, ",\n");
191}
192