Annotation of src/usr.bin/rpcgen/rpc_sample.c, Revision 1.18
1.18 ! deraadt 1: /* $OpenBSD: rpc_sample.c,v 1.17 2010/09/01 14:43:34 millert Exp $ */
1.1 deraadt 2: /* $NetBSD: rpc_sample.c,v 1.2 1995/06/11 21:50:01 pk Exp $ */
1.17 millert 3:
1.1 deraadt 4: /*
1.17 millert 5: * Copyright (c) 2010, Oracle America, Inc.
1.1 deraadt 6: *
1.17 millert 7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions are
9: * met:
1.1 deraadt 10: *
1.17 millert 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.
1.1 deraadt 20: *
1.17 millert 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.
1.1 deraadt 33: */
34:
35: /*
36: * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler
37: */
38:
39: #include <stdio.h>
40: #include <string.h>
41: #include "rpc_parse.h"
42: #include "rpc_util.h"
43:
44: static char RQSTP[] = "rqstp";
45:
1.11 millert 46: static void write_sample_client(char *, version_list *);
47: static void write_sample_server(definition *);
48: static void return_type(proc_list *);
1.1 deraadt 49:
50: void
51: write_sample_svc(def)
1.13 deraadt 52: definition *def;
1.1 deraadt 53: {
54:
1.10 deraadt 55: if (def->def_kind != DEF_PROGRAM)
56: return;
1.1 deraadt 57: write_sample_server(def);
58: }
59:
60:
61: int
62: write_sample_clnt(def)
1.13 deraadt 63: definition *def;
1.1 deraadt 64: {
1.13 deraadt 65: version_list *vp;
1.1 deraadt 66: int count = 0;
67:
1.10 deraadt 68: if (def->def_kind != DEF_PROGRAM)
69: return(0);
1.1 deraadt 70: /* generate sample code for each version */
71: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.10 deraadt 72: write_sample_client(def->def_name, vp);
73: ++count;
1.1 deraadt 74: }
1.10 deraadt 75: return(count);
1.1 deraadt 76: }
77:
78:
1.10 deraadt 79: static void
80: write_sample_client(program_name, vp)
1.13 deraadt 81: char *program_name;
82: version_list *vp;
1.1 deraadt 83: {
1.13 deraadt 84: proc_list *proc;
85: int i;
86: decl_list *l;
87:
88: fprintf(fout, "\n\nvoid\n");
89: pvname(program_name, vp->vers_num);
90: if (Cflag)
91: fprintf(fout,"(char *host)\n{\n");
1.1 deraadt 92: else
1.13 deraadt 93: fprintf(fout, "(host)\nchar *host;\n{\n");
94: fprintf(fout, "\tCLIENT *clnt;\n");
95:
96: i = 0;
97: for (proc = vp->procs; proc != NULL; proc = proc->next) {
98: fprintf(fout, "\t");
99: ptype(proc->res_prefix, proc->res_type, 1);
100: fprintf(fout, " *result_%d;\n",++i);
101: /* print out declarations for arguments */
102: if (proc->arg_num < 2 && !newstyle) {
103: fprintf(fout, "\t");
104: if (!streq(proc->args.decls->decl.type, "void"))
105: ptype(proc->args.decls->decl.prefix,
106: proc->args.decls->decl.type, 1);
107: else
108: fprintf(fout, "char *"); /* cannot have "void" type */
109: fprintf(fout, " ");
110: pvname(proc->proc_name, vp->vers_num);
111: fprintf(fout, "_arg;\n");
112: } else if (!streq(proc->args.decls->decl.type, "void")) {
113: for (l = proc->args.decls; l != NULL; l = l->next) {
114: fprintf(fout, "\t");
115: ptype(l->decl.prefix, l->decl.type, 1);
116: fprintf(fout, " ");
117: pvname(proc->proc_name, vp->vers_num);
118: fprintf(fout, "_%s;\n", l->decl.name);
119: /* pdeclaration(proc->args.argname, &l->decl, 1, ";\n");*/
120: }
121: }
1.1 deraadt 122: }
123:
1.13 deraadt 124: /* generate creation of client handle */
125: fprintf(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n",
126: program_name, vp->vers_name, tirpcflag? "netpath" : "udp");
127: fprintf(fout, "\tif (clnt == NULL) {\n");
128: fprintf(fout, "\t\tclnt_pcreateerror(host);\n");
129: fprintf(fout, "\t\texit(1);\n\t}\n");
130:
131: /* generate calls to procedures */
132: i = 0;
133: for (proc = vp->procs; proc != NULL; proc = proc->next) {
134: fprintf(fout, "\tresult_%d = ",++i);
135: pvname(proc->proc_name, vp->vers_num);
136: if (proc->arg_num < 2 && !newstyle) {
137: fprintf(fout, "(");
138: if (streq(proc->args.decls->decl.type, "void"))
139: fprintf(fout, "(void*)");
140: fprintf(fout, "&");
141: pvname(proc->proc_name, vp->vers_num);
142: fprintf(fout, "_arg, clnt);\n");
143: } else if (streq(proc->args.decls->decl.type, "void")) {
144: fprintf(fout, "(clnt);\n");
145: } else {
146: fprintf(fout, "(");
147: for (l = proc->args.decls; l != NULL; l = l->next) {
148: pvname(proc->proc_name, vp->vers_num);
149: fprintf(fout, "_%s, ", l->decl.name);
150: }
151: fprintf(fout, "clnt);\n");
152: }
153: fprintf(fout, "\tif (result_%d == NULL) {\n", i);
154: fprintf(fout, "\t\tclnt_perror(clnt, \"call failed:\");\n");
155: fprintf(fout, "\t}\n");
1.1 deraadt 156: }
157:
1.13 deraadt 158: fprintf(fout, "\tclnt_destroy(clnt);\n");
159: fprintf(fout, "}\n");
1.1 deraadt 160: }
161:
1.10 deraadt 162: static void
1.1 deraadt 163: write_sample_server(def)
164: definition *def;
165: {
166: version_list *vp;
167: proc_list *proc;
168:
169: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
170: for (proc = vp->procs; proc != NULL; proc = proc->next) {
1.12 deraadt 171: fprintf(fout, "\n");
1.10 deraadt 172: /* if (Cflag)
1.12 deraadt 173: fprintf(fout, "extern \"C\"{\n");
1.1 deraadt 174: */
175: return_type(proc);
1.12 deraadt 176: fprintf(fout, "* \n");
1.3 deraadt 177: pvname_svc(proc->proc_name, vp->vers_num);
1.10 deraadt 178: printarglist(proc, RQSTP, "struct svc_req *");
1.1 deraadt 179:
1.12 deraadt 180: fprintf(fout, "{\n");
181: fprintf(fout, "\n\tstatic ");
1.10 deraadt 182: if (!streq(proc->res_type, "void"))
183: return_type(proc);
1.4 pvalchev 184: else
1.12 deraadt 185: fprintf(fout, "char*"); /* cannot have void type */
186: fprintf(fout, " result;\n");
187: fprintf(fout,
1.10 deraadt 188: "\n\t/*\n\t * insert server code here\n\t */\n\n");
189: if (!streq(proc->res_type, "void"))
1.12 deraadt 190: fprintf(fout, "\treturn(&result);\n}\n");
1.1 deraadt 191: else /* cast back to void * */
1.12 deraadt 192: fprintf(fout, "\treturn((void*) &result);\n}\n");
1.10 deraadt 193: /* if (Cflag)
1.12 deraadt 194: fprintf(fout, "}\n");
1.1 deraadt 195: */
1.10 deraadt 196: }
1.1 deraadt 197: }
198: }
199:
1.10 deraadt 200: static void
1.1 deraadt 201: return_type(plist)
202: proc_list *plist;
203: {
1.10 deraadt 204: ptype(plist->res_prefix, plist->res_type, 1);
1.1 deraadt 205: }
206:
1.10 deraadt 207: void
1.14 deraadt 208: add_sample_msg(void)
1.1 deraadt 209: {
1.12 deraadt 210: fprintf(fout, "/*\n");
211: fprintf(fout, " * This is sample code generated by rpcgen.\n");
212: fprintf(fout, " * These are only templates and you can use them\n");
213: fprintf(fout, " * as a guideline for developing your own functions.\n");
214: fprintf(fout, " */\n\n");
1.1 deraadt 215: }
216:
217: void
218: write_sample_clnt_main()
219: {
1.10 deraadt 220: list *l;
221: definition *def;
222: version_list *vp;
223:
1.12 deraadt 224: fprintf(fout, "\n\n");
1.10 deraadt 225: if (Cflag)
1.12 deraadt 226: fprintf(fout,"main(int argc, char *argv[])\n{\n");
1.10 deraadt 227: else
1.12 deraadt 228: fprintf(fout, "main(argc, argv)\nint argc;\nchar *argv[];\n{\n");
1.1 deraadt 229:
1.12 deraadt 230: fprintf(fout, "\tchar *host;");
231: fprintf(fout, "\n\n\tif (argc < 2) {");
232: fprintf(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n");
233: fprintf(fout, "\t\texit(1);\n\t}");
234: fprintf(fout, "\n\thost = argv[1];\n");
1.1 deraadt 235:
1.10 deraadt 236: for (l = defined; l != NULL; l = l->next) {
1.1 deraadt 237: def = l->val;
1.10 deraadt 238: if (def->def_kind != DEF_PROGRAM)
1.1 deraadt 239: continue;
240: for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
1.12 deraadt 241: fprintf(fout, "\t");
1.1 deraadt 242: pvname(def->def_name, vp->vers_num);
1.12 deraadt 243: fprintf(fout, "(host);\n");
1.1 deraadt 244: }
1.10 deraadt 245: }
1.12 deraadt 246: fprintf(fout, "}\n");
1.1 deraadt 247: }
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