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
46 extern int nullproc(proc_list *);
47
48 static void write_table(definition *);
49 static void printit(char *, char *);
50
51 #define TABSIZE 8
52 #define TABCOUNT 5
53 #define TABSTOP (TABSIZE*TABCOUNT)
54
55 static char tabstr[TABCOUNT+1] = "\t\t\t\t\t";
56
57 static char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
58 static char tbl_end[] = "};\n";
59
60 static 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
64 static 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
69 static char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)"
70 "/sizeof(%s_table[0]);\n\n";
71
72 void
73 write_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
87 static void
88 write_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
161 static void
162 printit(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 }