1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 * 29 * @(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI 30 * $DragonFly: src/usr.bin/rpcgen/rpc_clntout.c,v 1.4 2003/11/03 19:31:32 eirikn Exp $ 31 */ 32 33 #ident "@(#)rpc_clntout.c 1.15 94/04/25 SMI" 34 35 /* 36 * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler 37 * Copyright (C) 1987, Sun Microsytsems, Inc. 38 */ 39 #include <stdio.h> 40 #include <string.h> 41 #include <rpc/types.h> 42 #include "rpc_parse.h" 43 #include "rpc_util.h" 44 45 extern void pdeclaration( char *, declaration *, int, char * ); 46 void printarglist( proc_list *, char *, char *, char *); 47 static void write_program( definition * ); 48 static void printbody( proc_list * ); 49 50 static char RESULT[] = "clnt_res"; 51 52 53 #define DEFAULT_TIMEOUT 25 /* in seconds */ 54 55 56 void 57 write_stubs() 58 { 59 list *l; 60 definition *def; 61 62 f_print(fout, 63 "\n/* Default timeout can be changed using clnt_control() */\n"); 64 f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", 65 DEFAULT_TIMEOUT); 66 for (l = defined; l != NULL; l = l->next) { 67 def = (definition *) l->val; 68 if (def->def_kind == DEF_PROGRAM) { 69 write_program(def); 70 } 71 } 72 } 73 74 static void 75 write_program(def) 76 definition *def; 77 { 78 version_list *vp; 79 proc_list *proc; 80 81 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 82 for (proc = vp->procs; proc != NULL; proc = proc->next) { 83 f_print(fout, "\n"); 84 if (mtflag == 0) { 85 ptype(proc->res_prefix, proc->res_type, 1); 86 f_print(fout, "*\n"); 87 pvname(proc->proc_name, vp->vers_num); 88 printarglist(proc, RESULT, "clnt", "CLIENT *"); 89 } else { 90 f_print(fout, "enum clnt_stat \n"); 91 pvname(proc->proc_name, vp->vers_num); 92 printarglist(proc, RESULT, "clnt", "CLIENT *"); 93 94 } 95 f_print(fout, "{\n"); 96 printbody(proc); 97 98 f_print(fout, "}\n"); 99 } 100 } 101 } 102 103 /* 104 * Writes out declarations of procedure's argument list. 105 * In either ANSI C style, in one of old rpcgen style (pass by reference), 106 * or new rpcgen style (multiple arguments, pass by value); 107 */ 108 109 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ 110 111 void printarglist(proc, result, addargname, addargtype) 112 proc_list *proc; 113 char *result; 114 char* addargname, * addargtype; 115 { 116 117 decl_list *l; 118 119 if (!newstyle) { 120 /* old style: always pass argument by reference */ 121 if (Cflag) { /* C++ style heading */ 122 f_print(fout, "("); 123 ptype(proc->args.decls->decl.prefix, 124 proc->args.decls->decl.type, 1); 125 126 if (mtflag) {/* Generate result field */ 127 f_print(fout, "*argp, "); 128 ptype(proc->res_prefix, proc->res_type, 1); 129 f_print(fout, "*%s, %s%s)\n", 130 result, addargtype, addargname); 131 } else 132 f_print(fout, "*argp, %s%s)\n", addargtype, addargname); 133 } else { 134 if (!mtflag) 135 f_print(fout, "(argp, %s)\n", addargname); 136 else 137 f_print(fout, "(argp, %s, %s)\n", 138 result, addargname); 139 f_print(fout, "\t"); 140 ptype(proc->args.decls->decl.prefix, 141 proc->args.decls->decl.type, 1); 142 f_print(fout, "*argp;\n"); 143 if (mtflag) { 144 f_print(fout, "\t"); 145 ptype(proc->res_prefix, proc->res_type, 1); 146 f_print(fout, "*%s;\n", result); 147 } 148 } 149 } else if (streq(proc->args.decls->decl.type, "void")) { 150 /* newstyle, 0 argument */ 151 if (mtflag) { 152 f_print(fout, "("); 153 154 155 if (Cflag) { 156 ptype(proc->res_prefix, proc->res_type, 1); 157 f_print(fout, "*%s, %s%s)\n", 158 result, addargtype, addargname); 159 } 160 else 161 f_print(fout, "(%s)\n", addargname); 162 163 } else 164 if (Cflag) 165 f_print(fout, "(%s%s)\n", addargtype, addargname); 166 else 167 f_print(fout, "(%s)\n", addargname); 168 } else { 169 /* new style, 1 or multiple arguments */ 170 if (!Cflag) { 171 f_print(fout, "("); 172 for (l = proc->args.decls; l != NULL; l = l->next) 173 f_print(fout, "%s, ", l->decl.name); 174 if (mtflag) 175 f_print(fout, "%s, ", result); 176 177 f_print(fout, "%s)\n", addargname); 178 for (l = proc->args.decls; l != NULL; l = l->next) { 179 pdeclaration(proc->args.argname, 180 &l->decl, 1, ";\n"); 181 } 182 if (mtflag) { 183 f_print(fout, "\t"); 184 ptype(proc->res_prefix, proc->res_type, 1); 185 f_print(fout, "*%s;\n", result); 186 } 187 188 } else { /* C++ style header */ 189 f_print(fout, "("); 190 for (l = proc->args.decls; l != NULL; l = l->next) { 191 pdeclaration(proc->args.argname, &l->decl, 0, 192 ", "); 193 } 194 if (mtflag) { 195 ptype(proc->res_prefix, proc->res_type, 1); 196 f_print(fout, "*%s, ", result); 197 198 } 199 f_print(fout, "%s%s)\n", addargtype, addargname); 200 } 201 } 202 203 if (!Cflag) 204 f_print(fout, "\t%s%s;\n", addargtype, addargname); 205 } 206 207 208 209 static char * 210 ampr(type) 211 char *type; 212 { 213 if (isvectordef(type, REL_ALIAS)) { 214 return (""); 215 } else { 216 return ("&"); 217 } 218 } 219 220 static void 221 printbody(proc) 222 proc_list *proc; 223 { 224 decl_list *l; 225 bool_t args2 = (proc->arg_num > 1); 226 227 /* 228 * For new style with multiple arguments, need a structure in which 229 * to stuff the arguments. 230 */ 231 232 233 if (newstyle && args2) { 234 f_print(fout, "\t%s", proc->args.argname); 235 f_print(fout, " arg;\n"); 236 } 237 if (!mtflag) { 238 f_print(fout, "\tstatic "); 239 if (streq(proc->res_type, "void")) { 240 f_print(fout, "char "); 241 } else { 242 ptype(proc->res_prefix, proc->res_type, 0); 243 } 244 f_print(fout, "%s;\n", RESULT); 245 f_print(fout, "\n"); 246 f_print(fout, "\tmemset((char *)%s%s, 0, sizeof (%s));\n", 247 ampr(proc->res_type), RESULT, RESULT); 248 249 } 250 if (newstyle && !args2 && 251 (streq(proc->args.decls->decl.type, "void"))) { 252 /* newstyle, 0 arguments */ 253 254 if (mtflag) 255 f_print(fout, "\t return "); 256 else 257 f_print(fout, "\t if "); 258 259 f_print(fout, 260 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_void, ", 261 proc->proc_name); 262 f_print(fout, 263 "(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,", 264 stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type), 265 RESULT); 266 267 if (mtflag) 268 f_print(fout, "\n\t\tTIMEOUT));\n"); 269 else 270 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 271 272 } else if (newstyle && args2) { 273 /* 274 * Newstyle, multiple arguments 275 * stuff arguments into structure 276 */ 277 for (l = proc->args.decls; l != NULL; l = l->next) { 278 f_print(fout, "\targ.%s = %s;\n", 279 l->decl.name, l->decl.name); 280 } 281 if (mtflag) 282 f_print(fout, "\treturn "); 283 else 284 f_print(fout, "\tif "); 285 f_print(fout, 286 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s", 287 proc->proc_name,proc->args.argname); 288 f_print(fout, 289 ", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,", 290 stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type), 291 RESULT); 292 if (mtflag) 293 f_print(fout, "\n\t\tTIMEOUT));\n"); 294 else 295 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 296 } else { /* single argument, new or old style */ 297 if (!mtflag) 298 f_print(fout, 299 "\tif (clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT) != RPC_SUCCESS) {\n", 300 proc->proc_name, 301 stringfix(proc->args.decls->decl.type), 302 (newstyle ? "&" : ""), 303 (newstyle ? proc->args.decls->decl.name : "argp"), 304 stringfix(proc->res_type), ampr(proc->res_type), 305 RESULT); 306 else 307 308 f_print(fout, 309 "\treturn (clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT));\n", 310 proc->proc_name, 311 stringfix(proc->args.decls->decl.type), 312 (newstyle ? "&" : ""), 313 (newstyle ? proc->args.decls->decl.name : "argp"), 314 stringfix(proc->res_type), "", 315 RESULT); 316 } 317 if (!mtflag) { 318 f_print(fout, "\t\treturn (NULL);\n"); 319 f_print(fout, "\t}\n"); 320 321 if (streq(proc->res_type, "void")) { 322 f_print(fout, "\treturn ((void *)%s%s);\n", 323 ampr(proc->res_type), RESULT); 324 } else { 325 f_print(fout, "\treturn (%s%s);\n", 326 ampr(proc->res_type), RESULT); 327 } 328 } 329 } 330