Annotation of src/usr.bin/rpcgen/rpc_clntout.c, Revision 1.1.1.1
1.1 deraadt 1: /* $NetBSD: rpc_clntout.c,v 1.4 1995/06/11 21:49:52 pk Exp $ */
2: /*
3: * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4: * unrestricted use provided that this legend is included on all tape
5: * media and as a part of the software program in whole or part. Users
6: * may copy or modify Sun RPC without charge, but are not authorized
7: * to license or distribute it to anyone else except as part of a product or
8: * program developed by the user or with the express written consent of
9: * Sun Microsystems, Inc.
10: *
11: * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12: * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13: * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14: *
15: * Sun RPC is provided with no support and without any obligation on the
16: * part of Sun Microsystems, Inc. to assist in its use, correction,
17: * modification or enhancement.
18: *
19: * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20: * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21: * OR ANY PART THEREOF.
22: *
23: * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24: * or profits or other special, indirect and consequential damages, even if
25: * Sun has been advised of the possibility of such damages.
26: *
27: * Sun Microsystems, Inc.
28: * 2550 Garcia Avenue
29: * Mountain View, California 94043
30: */
31:
32: #ifndef lint
33: static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI";
34: #endif
35:
36: /*
37: * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler
38: * Copyright (C) 1987, Sun Microsytsems, Inc.
39: */
40: #include <stdio.h>
41: #include <string.h>
42: #include <rpc/types.h>
43: #include "rpc_parse.h"
44: #include "rpc_util.h"
45:
46: static write_program __P((definition *));
47: static void printbody __P((proc_list *));
48:
49: extern pdeclaration();
50:
51: #define DEFAULT_TIMEOUT 25 /* in seconds */
52: static char RESULT[] = "clnt_res";
53:
54:
55: void
56: write_stubs()
57: {
58: list *l;
59: definition *def;
60:
61: f_print(fout,
62: "\n/* Default timeout can be changed using clnt_control() */\n");
63: f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n",
64: DEFAULT_TIMEOUT);
65: for (l = defined; l != NULL; l = l->next) {
66: def = (definition *) l->val;
67: if (def->def_kind == DEF_PROGRAM) {
68: write_program(def);
69: }
70: }
71: }
72:
73: static
74: write_program(def)
75: definition *def;
76: {
77: version_list *vp;
78: proc_list *proc;
79:
80: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
81: for (proc = vp->procs; proc != NULL; proc = proc->next) {
82: f_print(fout, "\n");
83: ptype(proc->res_prefix, proc->res_type, 1);
84: f_print(fout, "*\n");
85: pvname(proc->proc_name, vp->vers_num);
86: printarglist( proc, "clnt", "CLIENT *" );
87: f_print(fout, "{\n");
88: printbody(proc);
89: f_print(fout, "}\n");
90: }
91: }
92: }
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: */
98:
99: /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */
100:
101: void printarglist( proc, addargname, addargtype )
102: proc_list *proc;
103: char *addargname, *addargtype;
104: {
105:
106: decl_list *l;
107:
108: if (!newstyle) { /* old style: always pass argument by reference */
109: if (Cflag) { /* C++ style heading */
110: f_print(fout, "(");
111: ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1);
112: f_print(fout, "*argp, %s%s)\n", addargtype, addargname );
113: } else {
114: f_print(fout, "(argp, %s)\n", addargname);
115: f_print(fout, "\t");
116: ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1);
117: f_print(fout, "*argp;\n");
118: }
119: } else if (streq( proc->args.decls->decl.type, "void")) {
120: /* newstyle, 0 argument */
121: if( Cflag )
122: f_print(fout, "(%s%s)\n", addargtype, addargname );
123: else
124: f_print(fout, "(%s)\n", addargname);
125: } else {
126: /* new style, 1 or multiple arguments */
127: if( !Cflag ) {
128: f_print(fout, "(");
129: for (l = proc->args.decls; l != NULL; l = l->next)
130: f_print(fout, "%s, ", l->decl.name);
131: f_print(fout, "%s)\n", addargname );
132: for (l = proc->args.decls; l != NULL; l = l->next) {
133: pdeclaration(proc->args.argname, &l->decl, 1, ";\n" );
134: }
135: } else { /* C++ style header */
136: f_print(fout, "(");
137: for(l = proc->args.decls; l != NULL; l = l->next) {
138: pdeclaration(proc->args.argname, &l->decl, 0, ", " );
139: }
140: f_print(fout, " %s%s)\n", addargtype, addargname );
141: }
142: }
143:
144: if( !Cflag )
145: f_print(fout, "\t%s%s;\n", addargtype, addargname );
146: }
147:
148:
149:
150: static char *
151: ampr(type)
152: char *type;
153: {
154: if (isvectordef(type, REL_ALIAS)) {
155: return ("");
156: } else {
157: return ("&");
158: }
159: }
160:
161: static void
162: printbody(proc)
163: proc_list *proc;
164: {
165: decl_list *l;
166: bool_t args2 = (proc->arg_num > 1);
167: int i;
168:
169: /* For new style with multiple arguments, need a structure in which
170: to stuff the arguments. */
171: if ( newstyle && args2) {
172: f_print(fout, "\t%s", proc->args.argname);
173: f_print(fout, " arg;\n");
174: }
175: f_print(fout, "\tstatic ");
176: if (streq(proc->res_type, "void")) {
177: f_print(fout, "char ");
178: } else {
179: ptype(proc->res_prefix, proc->res_type, 0);
180: }
181: f_print(fout, "%s;\n",RESULT);
182: f_print(fout, "\n");
183: f_print(fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n",
184: ampr(proc->res_type ), RESULT, RESULT);
185: if (newstyle && !args2 && (streq( proc->args.decls->decl.type, "void"))) {
186: /* newstyle, 0 arguments */
187: f_print(fout,
188: "\tif (clnt_call(clnt, %s, xdr_void", proc->proc_name);
189: f_print(fout,
190: ", NULL, xdr_%s, %s,%s, TIMEOUT) != RPC_SUCCESS) {\n",
191: stringfix(proc->res_type), ampr(proc->res_type), RESULT);
192:
193: } else if ( newstyle && args2) {
194: /* newstyle, multiple arguments: stuff arguments into structure */
195: for (l = proc->args.decls; l != NULL; l = l->next) {
196: f_print(fout, "\targ.%s = %s;\n",
197: l->decl.name, l->decl.name);
198: }
199: f_print(fout,
200: "\tif (clnt_call(clnt, %s, xdr_%s", proc->proc_name,
201: proc->args.argname);
202: f_print(fout,
203: ", &arg, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n",
204: stringfix(proc->res_type),
205: ampr(proc->res_type), RESULT);
206: } else { /* single argument, new or old style */
207: f_print(fout,
208: "\tif (clnt_call(clnt, %s, xdr_%s, %s%s, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n",
209: proc->proc_name,
210: stringfix(proc->args.decls->decl.type),
211: (newstyle ? "&" : ""),
212: (newstyle ? proc->args.decls->decl.name : "argp"),
213: stringfix(proc->res_type),
214: ampr(proc->res_type),RESULT);
215: }
216: f_print(fout, "\t\treturn (NULL);\n");
217: f_print(fout, "\t}\n");
218: if (streq(proc->res_type, "void")) {
219: f_print(fout, "\treturn ((void *)%s%s);\n",
220: ampr(proc->res_type),RESULT);
221: } else {
222: f_print(fout, "\treturn (%s%s);\n", ampr(proc->res_type),RESULT);
223: }
224: }
225:
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