1 /* $OpenBSD: rpc_sample.c,v 1.14 2003/07/09 03:35:21 deraadt Exp $ */ 2 /* $NetBSD: rpc_sample.c,v 1.2 1995/06/11 21:50:01 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_sample.c 1.1 90/08/30 (C) 1987 SMI"; 35 36 #endif 37 38 /* 39 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler 40 */ 41 42 #include <sys/cdefs.h> 43 #include <stdio.h> 44 #include <string.h> 45 #include "rpc_parse.h" 46 #include "rpc_util.h" 47 48 static char RQSTP[] = "rqstp"; 49 50 static void write_sample_client(char *, version_list *); 51 static void write_sample_server(definition *); 52 static void return_type(proc_list *); 53 54 void 55 write_sample_svc(def) 56 definition *def; 57 { 58 59 if (def->def_kind != DEF_PROGRAM) 60 return; 61 write_sample_server(def); 62 } 63 64 65 int 66 write_sample_clnt(def) 67 definition *def; 68 { 69 version_list *vp; 70 int count = 0; 71 72 if (def->def_kind != DEF_PROGRAM) 73 return(0); 74 /* generate sample code for each version */ 75 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 76 write_sample_client(def->def_name, vp); 77 ++count; 78 } 79 return(count); 80 } 81 82 83 static void 84 write_sample_client(program_name, vp) 85 char *program_name; 86 version_list *vp; 87 { 88 proc_list *proc; 89 int i; 90 decl_list *l; 91 92 fprintf(fout, "\n\nvoid\n"); 93 pvname(program_name, vp->vers_num); 94 if (Cflag) 95 fprintf(fout,"(char *host)\n{\n"); 96 else 97 fprintf(fout, "(host)\nchar *host;\n{\n"); 98 fprintf(fout, "\tCLIENT *clnt;\n"); 99 100 i = 0; 101 for (proc = vp->procs; proc != NULL; proc = proc->next) { 102 fprintf(fout, "\t"); 103 ptype(proc->res_prefix, proc->res_type, 1); 104 fprintf(fout, " *result_%d;\n",++i); 105 /* print out declarations for arguments */ 106 if (proc->arg_num < 2 && !newstyle) { 107 fprintf(fout, "\t"); 108 if (!streq(proc->args.decls->decl.type, "void")) 109 ptype(proc->args.decls->decl.prefix, 110 proc->args.decls->decl.type, 1); 111 else 112 fprintf(fout, "char *"); /* cannot have "void" type */ 113 fprintf(fout, " "); 114 pvname(proc->proc_name, vp->vers_num); 115 fprintf(fout, "_arg;\n"); 116 } else if (!streq(proc->args.decls->decl.type, "void")) { 117 for (l = proc->args.decls; l != NULL; l = l->next) { 118 fprintf(fout, "\t"); 119 ptype(l->decl.prefix, l->decl.type, 1); 120 fprintf(fout, " "); 121 pvname(proc->proc_name, vp->vers_num); 122 fprintf(fout, "_%s;\n", l->decl.name); 123 /* pdeclaration(proc->args.argname, &l->decl, 1, ";\n");*/ 124 } 125 } 126 } 127 128 /* generate creation of client handle */ 129 fprintf(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n", 130 program_name, vp->vers_name, tirpcflag? "netpath" : "udp"); 131 fprintf(fout, "\tif (clnt == NULL) {\n"); 132 fprintf(fout, "\t\tclnt_pcreateerror(host);\n"); 133 fprintf(fout, "\t\texit(1);\n\t}\n"); 134 135 /* generate calls to procedures */ 136 i = 0; 137 for (proc = vp->procs; proc != NULL; proc = proc->next) { 138 fprintf(fout, "\tresult_%d = ",++i); 139 pvname(proc->proc_name, vp->vers_num); 140 if (proc->arg_num < 2 && !newstyle) { 141 fprintf(fout, "("); 142 if (streq(proc->args.decls->decl.type, "void")) 143 fprintf(fout, "(void*)"); 144 fprintf(fout, "&"); 145 pvname(proc->proc_name, vp->vers_num); 146 fprintf(fout, "_arg, clnt);\n"); 147 } else if (streq(proc->args.decls->decl.type, "void")) { 148 fprintf(fout, "(clnt);\n"); 149 } else { 150 fprintf(fout, "("); 151 for (l = proc->args.decls; l != NULL; l = l->next) { 152 pvname(proc->proc_name, vp->vers_num); 153 fprintf(fout, "_%s, ", l->decl.name); 154 } 155 fprintf(fout, "clnt);\n"); 156 } 157 fprintf(fout, "\tif (result_%d == NULL) {\n", i); 158 fprintf(fout, "\t\tclnt_perror(clnt, \"call failed:\");\n"); 159 fprintf(fout, "\t}\n"); 160 } 161 162 fprintf(fout, "\tclnt_destroy(clnt);\n"); 163 fprintf(fout, "}\n"); 164 } 165 166 static void 167 write_sample_server(def) 168 definition *def; 169 { 170 version_list *vp; 171 proc_list *proc; 172 173 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 174 for (proc = vp->procs; proc != NULL; proc = proc->next) { 175 fprintf(fout, "\n"); 176 /* if (Cflag) 177 fprintf(fout, "extern \"C\"{\n"); 178 */ 179 return_type(proc); 180 fprintf(fout, "* \n"); 181 pvname_svc(proc->proc_name, vp->vers_num); 182 printarglist(proc, RQSTP, "struct svc_req *"); 183 184 fprintf(fout, "{\n"); 185 fprintf(fout, "\n\tstatic "); 186 if (!streq(proc->res_type, "void")) 187 return_type(proc); 188 else 189 fprintf(fout, "char*"); /* cannot have void type */ 190 fprintf(fout, " result;\n"); 191 fprintf(fout, 192 "\n\t/*\n\t * insert server code here\n\t */\n\n"); 193 if (!streq(proc->res_type, "void")) 194 fprintf(fout, "\treturn(&result);\n}\n"); 195 else /* cast back to void * */ 196 fprintf(fout, "\treturn((void*) &result);\n}\n"); 197 /* if (Cflag) 198 fprintf(fout, "}\n"); 199 */ 200 } 201 } 202 } 203 204 static void 205 return_type(plist) 206 proc_list *plist; 207 { 208 ptype(plist->res_prefix, plist->res_type, 1); 209 } 210 211 void 212 add_sample_msg(void) 213 { 214 fprintf(fout, "/*\n"); 215 fprintf(fout, " * This is sample code generated by rpcgen.\n"); 216 fprintf(fout, " * These are only templates and you can use them\n"); 217 fprintf(fout, " * as a guideline for developing your own functions.\n"); 218 fprintf(fout, " */\n\n"); 219 } 220 221 void 222 write_sample_clnt_main() 223 { 224 list *l; 225 definition *def; 226 version_list *vp; 227 228 fprintf(fout, "\n\n"); 229 if (Cflag) 230 fprintf(fout,"main(int argc, char *argv[])\n{\n"); 231 else 232 fprintf(fout, "main(argc, argv)\nint argc;\nchar *argv[];\n{\n"); 233 234 fprintf(fout, "\tchar *host;"); 235 fprintf(fout, "\n\n\tif (argc < 2) {"); 236 fprintf(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n"); 237 fprintf(fout, "\t\texit(1);\n\t}"); 238 fprintf(fout, "\n\thost = argv[1];\n"); 239 240 for (l = defined; l != NULL; l = l->next) { 241 def = l->val; 242 if (def->def_kind != DEF_PROGRAM) 243 continue; 244 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 245 fprintf(fout, "\t"); 246 pvname(def->def_name, vp->vers_num); 247 fprintf(fout, "(host);\n"); 248 } 249 } 250 fprintf(fout, "}\n"); 251 } 252