1 /* $OpenBSD: rpc_tblout.c,v 1.15 2013/10/27 18:31:24 guenther Exp $ */
2 /* $NetBSD: rpc_tblout.c,v 1.3 1995/06/24 15:00:15 pk Exp $ */
3
4 /*
5 * Copyright (c) 2010, Oracle America, Inc.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials
16 * provided with the distribution.
17 * * Neither the name of the "Oracle America, Inc." nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
28 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 /*
36 * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
37 */
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include "rpc_parse.h"
42 #include "rpc_util.h"
43
44 #define TABSIZE 8
45 #define TABCOUNT 5
46 #define TABSTOP (TABSIZE*TABCOUNT)
47
48 static char tabstr[TABCOUNT+1] = "\t\t\t\t\t";
49
50 static const char tbl_hdr[] = "struct rpcgen_table %s_table[] = {\n";
51 static const char tbl_end[] = "};\n";
52
53 static const char null_entry[] = "\n\t(char *(*)())0,\n\
54 \t(xdrproc_t) xdr_void,\t\t\t0,\n\
55 \t(xdrproc_t) xdr_void,\t\t\t0,\n";
56
57 static const char tbl_nproc[] = "int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n\n";
58
59 static void write_table(definition *);
60 static void printit(char *, char *);
61
62 void
write_tables()63 write_tables()
64 {
65 definition *def;
66 list *l;
67
68 fprintf(fout, "\n");
69 for (l = defined; l != NULL; l = l->next) {
70 def = (definition *) l->val;
71 if (def->def_kind == DEF_PROGRAM)
72 write_table(def);
73 }
74 }
75
76 static void
write_table(def)77 write_table(def)
78 definition *def;
79 {
80 version_list *vp;
81 proc_list *proc;
82 int current;
83 int expected;
84 char progvers[100];
85 int warning;
86
87 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
88 warning = 0;
89 snprintf(progvers, sizeof progvers, "%s_%s",
90 locase(def->def_name), vp->vers_num);
91 /* print the table header */
92 fprintf(fout, tbl_hdr, progvers);
93
94 if (nullproc(vp->procs)) {
95 expected = 0;
96 } else {
97 expected = 1;
98 fprintf(fout, null_entry);
99 }
100 for (proc = vp->procs; proc != NULL; proc = proc->next) {
101 current = atoi(proc->proc_num);
102 if (current != expected++) {
103 fprintf(fout,
104 "\n/*\n * WARNING: table out of order\n */\n");
105 if (warning == 0) {
106 fprintf(stderr,
107 "WARNING %s table is out of order\n",
108 progvers);
109 warning = 1;
110 nonfatalerrors = 1;
111 }
112 expected = current + 1;
113 }
114 fprintf(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 fprintf(fout, "_"); /* calls internal func */
122 pvname(proc->proc_name, vp->vers_num);
123 }
124 fprintf(fout, "),\n");
125
126 /* argument info */
127 if (proc->arg_num > 1)
128 printit((char*) NULL, proc->args.argname);
129 else
130 /* do we have to do something special for newstyle */
131 printit(proc->args.decls->decl.prefix,
132 proc->args.decls->decl.type);
133 /* result info */
134 printit(proc->res_prefix, proc->res_type);
135 }
136
137 /* print the table trailer */
138 fprintf(fout, tbl_end);
139 fprintf(fout, tbl_nproc, progvers, progvers, progvers);
140 }
141 }
142
143 static void
printit(prefix,type)144 printit(prefix, type)
145 char *prefix;
146 char *type;
147 {
148 int len, tabs;
149
150 len = fprintf(fout, "\txdr_%s,", stringfix(type));
151 /* account for leading tab expansion */
152 len += TABSIZE - 1;
153 /* round up to tabs required */
154 tabs = (TABSTOP - len + TABSIZE - 1)/TABSIZE;
155 fprintf(fout, "%s", &tabstr[TABCOUNT-tabs]);
156
157 if (streq(type, "void")) {
158 fprintf(fout, "0");
159 } else {
160 fprintf(fout, "sizeof (");
161 /* XXX: should "follow" be 1 ??? */
162 ptype(prefix, type, 0);
163 fprintf(fout, ")");
164 }
165 fprintf(fout, ",\n");
166 }
167