1 /* $NetBSD: rpc_sample.c,v 1.5 1997/10/18 10:54:01 lukem 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 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)rpc_sample.c 1.1 90/08/30 (C) 1987 SMI"; 36 #else 37 __RCSID("$NetBSD: rpc_sample.c,v 1.5 1997/10/18 10:54:01 lukem Exp $"); 38 #endif 39 #endif 40 41 /* 42 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler 43 */ 44 45 #include <stdio.h> 46 #include <string.h> 47 #include "rpc_scan.h" 48 #include "rpc_parse.h" 49 #include "rpc_util.h" 50 51 static char RQSTP[] = "rqstp"; 52 53 static void write_sample_client __P((char *, version_list *)); 54 static void write_sample_server __P((definition *)); 55 static void return_type __P((proc_list *)); 56 57 void 58 write_sample_svc(def) 59 definition *def; 60 { 61 62 if (def->def_kind != DEF_PROGRAM) 63 return; 64 write_sample_server(def); 65 } 66 67 68 int 69 write_sample_clnt(def) 70 definition *def; 71 { 72 version_list *vp; 73 int count = 0; 74 75 if (def->def_kind != DEF_PROGRAM) 76 return (0); 77 /* generate sample code for each version */ 78 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 79 write_sample_client(def->def_name, vp); 80 ++count; 81 } 82 return (count); 83 } 84 85 86 static void 87 write_sample_client(program_name, vp) 88 char *program_name; 89 version_list *vp; 90 { 91 proc_list *proc; 92 int i; 93 decl_list *l; 94 95 f_print(fout, "\n\nvoid\n"); 96 pvname(program_name, vp->vers_num); 97 if (Cflag) 98 f_print(fout, "( char* host )\n{\n"); 99 else 100 f_print(fout, "(host)\nchar *host;\n{\n"); 101 f_print(fout, "\tCLIENT *clnt;\n"); 102 103 i = 0; 104 for (proc = vp->procs; proc != NULL; proc = proc->next) { 105 f_print(fout, "\t"); 106 ptype(proc->res_prefix, proc->res_type, 1); 107 f_print(fout, " *result_%d;\n", ++i); 108 /* print out declarations for arguments */ 109 if (proc->arg_num < 2 && !newstyle) { 110 f_print(fout, "\t"); 111 if (!streq(proc->args.decls->decl.type, "void")) 112 ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); 113 else 114 f_print(fout, "char* "); /* cannot have "void" 115 * type */ 116 f_print(fout, " "); 117 pvname(proc->proc_name, vp->vers_num); 118 f_print(fout, "_arg;\n"); 119 } else 120 if (!streq(proc->args.decls->decl.type, "void")) { 121 for (l = proc->args.decls; l != NULL; l = l->next) { 122 f_print(fout, "\t"); 123 ptype(l->decl.prefix, l->decl.type, 1); 124 f_print(fout, " "); 125 pvname(proc->proc_name, vp->vers_num); 126 f_print(fout, "_%s;\n", l->decl.name); 127 /* pdeclaration(proc->args.argname, &l->decl, 1, ";\n" );*/ 128 } 129 } 130 } 131 132 /* generate creation of client handle */ 133 f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n", 134 program_name, vp->vers_name, tirpcflag ? "netpath" : "udp"); 135 f_print(fout, "\tif (clnt == NULL) {\n"); 136 f_print(fout, "\t\tclnt_pcreateerror(host);\n"); 137 f_print(fout, "\t\texit(1);\n\t}\n"); 138 139 /* generate calls to procedures */ 140 i = 0; 141 for (proc = vp->procs; proc != NULL; proc = proc->next) { 142 f_print(fout, "\tresult_%d = ", ++i); 143 pvname(proc->proc_name, vp->vers_num); 144 if (proc->arg_num < 2 && !newstyle) { 145 f_print(fout, "("); 146 if (streq(proc->args.decls->decl.type, "void")) /* cast to void* */ 147 f_print(fout, "(void*)"); 148 f_print(fout, "&"); 149 pvname(proc->proc_name, vp->vers_num); 150 f_print(fout, "_arg, clnt);\n"); 151 } else 152 if (streq(proc->args.decls->decl.type, "void")) { 153 f_print(fout, "(clnt);\n"); 154 } else { 155 f_print(fout, "("); 156 for (l = proc->args.decls; l != NULL; l = l->next) { 157 pvname(proc->proc_name, vp->vers_num); 158 f_print(fout, "_%s, ", l->decl.name); 159 } 160 f_print(fout, "clnt);\n"); 161 } 162 f_print(fout, "\tif (result_%d == NULL) {\n", i); 163 f_print(fout, "\t\tclnt_perror(clnt, \"call failed:\");\n"); 164 f_print(fout, "\t}\n"); 165 } 166 167 f_print(fout, "\tclnt_destroy( clnt );\n"); 168 f_print(fout, "}\n"); 169 } 170 171 static void 172 write_sample_server(def) 173 definition *def; 174 { 175 version_list *vp; 176 proc_list *proc; 177 178 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 179 for (proc = vp->procs; proc != NULL; proc = proc->next) { 180 f_print(fout, "\n"); 181 /* if( Cflag ) 182 f_print( fout, "extern \"C\"{\n"); 183 */ 184 return_type(proc); 185 f_print(fout, "*\n"); 186 if (Cflag) 187 pvname_svc(proc->proc_name, vp->vers_num); 188 else 189 pvname(proc->proc_name, vp->vers_num); 190 printarglist(proc, RQSTP, "struct svc_req *"); 191 192 f_print(fout, "{\n"); 193 f_print(fout, "\n\tstatic "); 194 if (!streq(proc->res_type, "void")) 195 return_type(proc); 196 else 197 f_print(fout, "char*"); /* cannot have void type */ 198 f_print(fout, " result;\n"); 199 f_print(fout, 200 "\n\t/*\n\t * insert server code here\n\t */\n\n"); 201 if (!streq(proc->res_type, "void")) 202 f_print(fout, "\treturn(&result);\n}\n"); 203 else /* cast back to void * */ 204 f_print(fout, "\treturn((void*) &result);\n}\n"); 205 /* if( Cflag) 206 f_print( fout, "};\n"); 207 */ 208 209 } 210 } 211 } 212 213 static void 214 return_type(plist) 215 proc_list *plist; 216 { 217 ptype(plist->res_prefix, plist->res_type, 1); 218 } 219 220 void 221 add_sample_msg() 222 { 223 f_print(fout, "/*\n"); 224 f_print(fout, " * This is sample code generated by rpcgen.\n"); 225 f_print(fout, " * These are only templates and you can use them\n"); 226 f_print(fout, " * as a guideline for developing your own functions.\n"); 227 f_print(fout, " */\n\n"); 228 } 229 230 void 231 write_sample_clnt_main() 232 { 233 list *l; 234 definition *def; 235 version_list *vp; 236 237 f_print(fout, "\n\n"); 238 if (Cflag) 239 f_print(fout, "main( int argc, char* argv[] )\n{\n"); 240 else 241 f_print(fout, "main(argc, argv)\nint argc;\nchar *argv[];\n{\n"); 242 243 f_print(fout, "\tchar *host;"); 244 f_print(fout, "\n\n\tif(argc < 2) {"); 245 f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n"); 246 f_print(fout, "\t\texit(1);\n\t}"); 247 f_print(fout, "\n\thost = argv[1];\n"); 248 249 for (l = defined; l != NULL; l = l->next) { 250 def = l->val; 251 if (def->def_kind != DEF_PROGRAM) { 252 continue; 253 } 254 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 255 f_print(fout, "\t"); 256 pvname(def->def_name, vp->vers_num); 257 f_print(fout, "( host );\n"); 258 } 259 } 260 f_print(fout, "}\n"); 261 } 262