Annotation of src/usr.bin/rpcgen/rpc_clntout.c, Revision 1.12
1.12 ! deraadt 1: /* $OpenBSD: rpc_clntout.c,v 1.11 2002/07/05 05:39:42 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: rpc_clntout.c,v 1.4 1995/06/11 21:49:52 pk Exp $ */
3: /*
4: * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5: * unrestricted use provided that this legend is included on all tape
6: * media and as a part of the software program in whole or part. Users
7: * may copy or modify Sun RPC without charge, but are not authorized
8: * to license or distribute it to anyone else except as part of a product or
9: * program developed by the user or with the express written consent of
10: * Sun Microsystems, Inc.
11: *
12: * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
13: * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
14: * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
15: *
16: * Sun RPC is provided with no support and without any obligation on the
17: * part of Sun Microsystems, Inc. to assist in its use, correction,
18: * modification or enhancement.
19: *
20: * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
21: * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
22: * OR ANY PART THEREOF.
23: *
24: * In no event will Sun Microsystems, Inc. be liable for any lost revenue
25: * or profits or other special, indirect and consequential damages, even if
26: * Sun has been advised of the possibility of such damages.
27: *
28: * Sun Microsystems, Inc.
29: * 2550 Garcia Avenue
30: * Mountain View, California 94043
31: */
32:
33: #ifndef lint
34: static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI";
35: #endif
36:
37: /*
38: * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler
39: * Copyright (C) 1987, Sun Microsytsems, Inc.
40: */
41: #include <stdio.h>
42: #include <string.h>
43: #include <rpc/types.h>
44: #include "rpc_parse.h"
45: #include "rpc_util.h"
46:
1.9 millert 47: static void write_program(definition *);
48: static void printbody(proc_list *);
1.1 deraadt 49:
50: #define DEFAULT_TIMEOUT 25 /* in seconds */
51: static char RESULT[] = "clnt_res";
52:
53:
54: void
55: write_stubs()
56: {
57: list *l;
58: definition *def;
59:
1.10 deraadt 60: fprintf(fout,
1.1 deraadt 61: "\n/* Default timeout can be changed using clnt_control() */\n");
1.10 deraadt 62: fprintf(fout, "static struct timeval TIMEOUT = { %d, 0 };\n",
1.1 deraadt 63: DEFAULT_TIMEOUT);
64: for (l = defined; l != NULL; l = l->next) {
65: def = (definition *) l->val;
66: if (def->def_kind == DEF_PROGRAM) {
67: write_program(def);
68: }
69: }
70: }
71:
1.8 deraadt 72: static void
1.1 deraadt 73: write_program(def)
74: definition *def;
75: {
76: version_list *vp;
77: proc_list *proc;
78:
79: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
80: for (proc = vp->procs; proc != NULL; proc = proc->next) {
1.10 deraadt 81: fprintf(fout, "\n");
1.1 deraadt 82: ptype(proc->res_prefix, proc->res_type, 1);
1.10 deraadt 83: fprintf(fout, "*\n");
1.1 deraadt 84: pvname(proc->proc_name, vp->vers_num);
1.11 deraadt 85: printarglist(proc, "clnt", "CLIENT *");
1.10 deraadt 86: fprintf(fout, "{\n");
1.1 deraadt 87: printbody(proc);
1.10 deraadt 88: fprintf(fout, "}\n");
1.1 deraadt 89: }
90: }
91: }
92:
1.11 deraadt 93: /*
94: * Writes out declarations of procedure's argument list.
95: * In either ANSI C style, in one of old rpcgen style (pass by reference),
96: * or new rpcgen style (multiple arguments, pass by value);
97: */
1.1 deraadt 98:
99: /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */
100:
1.11 deraadt 101: void printarglist(proc, addargname, addargtype)
102: proc_list *proc;
103: char *addargname, *addargtype;
1.1 deraadt 104: {
1.11 deraadt 105: decl_list *l;
1.1 deraadt 106:
1.11 deraadt 107: if (!newstyle) { /* old style: always pass argument by reference */
108: if (Cflag) { /* C++ style heading */
109: fprintf(fout, "(");
110: ptype(proc->args.decls->decl.prefix,
111: proc->args.decls->decl.type, 1);
112: fprintf(fout, "*argp, %s%s)\n", addargtype, addargname);
113: } else {
114: fprintf(fout, "(argp, %s)\n", addargname);
115: fprintf(fout, "\t");
116: ptype(proc->args.decls->decl.prefix,
117: proc->args.decls->decl.type, 1);
118: fprintf(fout, "*argp;\n");
119: }
120: } else if (streq(proc->args.decls->decl.type, "void")) {
121: /* newstyle, 0 argument */
122: if (Cflag)
123: fprintf(fout, "(%s%s)\n", addargtype, addargname);
124: else
125: fprintf(fout, "(%s)\n", addargname);
126: } else {
127: /* new style, 1 or multiple arguments */
128: if (!Cflag) {
129: fprintf(fout, "(");
130: for (l = proc->args.decls; l != NULL; l = l->next)
131: fprintf(fout, "%s, ", l->decl.name);
132: fprintf(fout, "%s)\n", addargname);
133: for (l = proc->args.decls; l != NULL; l = l->next)
134: pdeclaration(proc->args.argname, &l->decl, 1, ";\n");
135: } else { /* C++ style header */
136: fprintf(fout, "(");
137: for (l = proc->args.decls; l != NULL; l = l->next)
138: pdeclaration(proc->args.argname, &l->decl, 0, ", ");
139: fprintf(fout, " %s%s)\n", addargtype, addargname);
140: }
141: }
1.1 deraadt 142:
1.11 deraadt 143: if (!Cflag)
144: fprintf(fout, "\t%s%s;\n", addargtype, addargname);
1.1 deraadt 145: }
146:
147: static char *
1.12 ! deraadt 148: ampr(char *type)
1.1 deraadt 149: {
150: if (isvectordef(type, REL_ALIAS)) {
151: return ("");
152: } else {
153: return ("&");
154: }
155: }
156:
157: static void
158: printbody(proc)
159: proc_list *proc;
160: {
1.11 deraadt 161: decl_list *l;
162: bool_t args2 = (proc->arg_num > 1);
1.1 deraadt 163:
1.11 deraadt 164: /*
165: * For new style with multiple arguments, need a structure in which
166: * to stuff the arguments.
167: */
168: if (newstyle && args2) {
1.10 deraadt 169: fprintf(fout, "\t%s", proc->args.argname);
170: fprintf(fout, " arg;\n");
1.1 deraadt 171: }
1.10 deraadt 172: fprintf(fout, "\tstatic ");
1.1 deraadt 173: if (streq(proc->res_type, "void")) {
1.10 deraadt 174: fprintf(fout, "char ");
1.1 deraadt 175: } else {
176: ptype(proc->res_prefix, proc->res_type, 0);
177: }
1.10 deraadt 178: fprintf(fout, "%s;\n",RESULT);
179: fprintf(fout, "\n");
1.11 deraadt 180: fprintf(fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n",
181: ampr(proc->res_type), RESULT, RESULT);
182: if (newstyle && !args2 && (streq(proc->args.decls->decl.type, "void"))) {
183: /* newstyle, 0 arguments */
184: fprintf(fout,
1.1 deraadt 185: "\tif (clnt_call(clnt, %s, xdr_void", proc->proc_name);
1.11 deraadt 186: fprintf(fout,
187: ", NULL, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n",
188: stringfix(proc->res_type), ampr(proc->res_type), RESULT);
189: } else if (newstyle && args2) {
190: /* newstyle, multiple arguments: stuff arguments into structure */
191: for (l = proc->args.decls; l != NULL; l = l->next) {
192: fprintf(fout, "\targ.%s = %s;\n",
193: l->decl.name, l->decl.name);
194: }
195: fprintf(fout,
196: "\tif (clnt_call(clnt, %s, xdr_%s", proc->proc_name,
197: proc->args.argname);
198: fprintf(fout,
199: ", &arg, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n",
200: stringfix(proc->res_type),
201: ampr(proc->res_type), RESULT);
1.1 deraadt 202: } else { /* single argument, new or old style */
1.11 deraadt 203: fprintf(fout,
204: "\tif (clnt_call(clnt, %s, xdr_%s, %s%s, xdr_%s, "
205: "%s%s, TIMEOUT) != RPC_SUCCESS) {\n",
206: proc->proc_name,
207: stringfix(proc->args.decls->decl.type),
208: (newstyle ? "&" : ""),
209: (newstyle ? proc->args.decls->decl.name : "argp"),
210: stringfix(proc->res_type),
211: ampr(proc->res_type),RESULT);
212: }
1.10 deraadt 213: fprintf(fout, "\t\treturn (NULL);\n");
214: fprintf(fout, "\t}\n");
1.1 deraadt 215: if (streq(proc->res_type, "void")) {
1.10 deraadt 216: fprintf(fout, "\treturn ((void *)%s%s);\n",
1.11 deraadt 217: ampr(proc->res_type),RESULT);
1.1 deraadt 218: } else {
1.10 deraadt 219: fprintf(fout, "\treturn (%s%s);\n", ampr(proc->res_type),RESULT);
1.1 deraadt 220: }
221: }
222:
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