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 * $FreeBSD$ 30 */ 31 32 #ident "@(#)rpc_clntout.c 1.15 94/04/25 SMI" 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI"; 37 #endif 38 #endif 39 40 /* 41 * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler 42 * Copyright (C) 1987, Sun Microsytsems, Inc. 43 */ 44 #include <stdio.h> 45 #include <string.h> 46 #include <rpc/types.h> 47 #include "rpc_parse.h" 48 #include "rpc_util.h" 49 50 extern void pdeclaration( char *, declaration *, int, char * ); 51 void printarglist( proc_list *, char *, char *, char *); 52 static void write_program( definition * ); 53 static void printbody( proc_list * ); 54 55 static char RESULT[] = "clnt_res"; 56 57 58 #define DEFAULT_TIMEOUT 25 /* in seconds */ 59 60 61 void 62 write_stubs() 63 { 64 list *l; 65 definition *def; 66 67 f_print(fout, 68 "\n/* Default timeout can be changed using clnt_control() */\n"); 69 f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", 70 DEFAULT_TIMEOUT); 71 for (l = defined; l != NULL; l = l->next) { 72 def = (definition *) l->val; 73 if (def->def_kind == DEF_PROGRAM) { 74 write_program(def); 75 } 76 } 77 } 78 79 static void 80 write_program(def) 81 definition *def; 82 { 83 version_list *vp; 84 proc_list *proc; 85 86 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 87 for (proc = vp->procs; proc != NULL; proc = proc->next) { 88 f_print(fout, "\n"); 89 if (mtflag == 0) { 90 ptype(proc->res_prefix, proc->res_type, 1); 91 f_print(fout, "*\n"); 92 pvname(proc->proc_name, vp->vers_num); 93 printarglist(proc, RESULT, "clnt", "CLIENT *"); 94 } else { 95 f_print(fout, "enum clnt_stat \n"); 96 pvname(proc->proc_name, vp->vers_num); 97 printarglist(proc, RESULT, "clnt", "CLIENT *"); 98 99 } 100 f_print(fout, "{\n"); 101 printbody(proc); 102 103 f_print(fout, "}\n"); 104 } 105 } 106 } 107 108 /* 109 * Writes out declarations of procedure's argument list. 110 * In either ANSI C style, in one of old rpcgen style (pass by reference), 111 * or new rpcgen style (multiple arguments, pass by value); 112 */ 113 114 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ 115 116 void printarglist(proc, result, addargname, addargtype) 117 proc_list *proc; 118 char *result; 119 char* addargname, * addargtype; 120 { 121 122 decl_list *l; 123 124 if (!newstyle) { 125 /* old style: always pass argument by reference */ 126 if (Cflag) { /* C++ style heading */ 127 f_print(fout, "("); 128 ptype(proc->args.decls->decl.prefix, 129 proc->args.decls->decl.type, 1); 130 131 if (mtflag) {/* Generate result field */ 132 f_print(fout, "*argp, "); 133 ptype(proc->res_prefix, proc->res_type, 1); 134 f_print(fout, "*%s, %s%s)\n", 135 result, addargtype, addargname); 136 } else 137 f_print(fout, "*argp, %s%s)\n", addargtype, addargname); 138 } else { 139 if (!mtflag) 140 f_print(fout, "(argp, %s)\n", addargname); 141 else 142 f_print(fout, "(argp, %s, %s)\n", 143 result, addargname); 144 f_print(fout, "\t"); 145 ptype(proc->args.decls->decl.prefix, 146 proc->args.decls->decl.type, 1); 147 f_print(fout, "*argp;\n"); 148 if (mtflag) { 149 f_print(fout, "\t"); 150 ptype(proc->res_prefix, proc->res_type, 1); 151 f_print(fout, "*%s;\n", result); 152 } 153 } 154 } else if (streq(proc->args.decls->decl.type, "void")) { 155 /* newstyle, 0 argument */ 156 if (mtflag) { 157 f_print(fout, "("); 158 159 160 if (Cflag) { 161 ptype(proc->res_prefix, proc->res_type, 1); 162 f_print(fout, "*%s, %s%s)\n", 163 result, addargtype, addargname); 164 } 165 else 166 f_print(fout, "(%s)\n", addargname); 167 168 } else 169 if (Cflag) 170 f_print(fout, "(%s%s)\n", addargtype, addargname); 171 else 172 f_print(fout, "(%s)\n", addargname); 173 } else { 174 /* new style, 1 or multiple arguments */ 175 if (!Cflag) { 176 f_print(fout, "("); 177 for (l = proc->args.decls; l != NULL; l = l->next) 178 f_print(fout, "%s, ", l->decl.name); 179 if (mtflag) 180 f_print(fout, "%s, ", result); 181 182 f_print(fout, "%s)\n", addargname); 183 for (l = proc->args.decls; l != NULL; l = l->next) { 184 pdeclaration(proc->args.argname, 185 &l->decl, 1, ";\n"); 186 } 187 if (mtflag) { 188 f_print(fout, "\t"); 189 ptype(proc->res_prefix, proc->res_type, 1); 190 f_print(fout, "*%s;\n", result); 191 } 192 193 } else { /* C++ style header */ 194 f_print(fout, "("); 195 for (l = proc->args.decls; l != NULL; l = l->next) { 196 pdeclaration(proc->args.argname, &l->decl, 0, 197 ", "); 198 } 199 if (mtflag) { 200 ptype(proc->res_prefix, proc->res_type, 1); 201 f_print(fout, "*%s, ", result); 202 203 } 204 f_print(fout, "%s%s)\n", addargtype, addargname); 205 } 206 } 207 208 if (!Cflag) 209 f_print(fout, "\t%s%s;\n", addargtype, addargname); 210 } 211 212 213 214 static char * 215 ampr(type) 216 char *type; 217 { 218 if (isvectordef(type, REL_ALIAS)) { 219 return (""); 220 } else { 221 return ("&"); 222 } 223 } 224 225 static void 226 printbody(proc) 227 proc_list *proc; 228 { 229 decl_list *l; 230 bool_t args2 = (proc->arg_num > 1); 231 232 /* 233 * For new style with multiple arguments, need a structure in which 234 * to stuff the arguments. 235 */ 236 237 238 if (newstyle && args2) { 239 f_print(fout, "\t%s", proc->args.argname); 240 f_print(fout, " arg;\n"); 241 } 242 if (!mtflag) { 243 f_print(fout, "\tstatic "); 244 if (streq(proc->res_type, "void")) { 245 f_print(fout, "char "); 246 } else { 247 ptype(proc->res_prefix, proc->res_type, 0); 248 } 249 f_print(fout, "%s;\n", RESULT); 250 f_print(fout, "\n"); 251 f_print(fout, "\tmemset((char *)%s%s, 0, sizeof (%s));\n", 252 ampr(proc->res_type), RESULT, RESULT); 253 254 } 255 if (newstyle && !args2 && 256 (streq(proc->args.decls->decl.type, "void"))) { 257 /* newstyle, 0 arguments */ 258 259 if (mtflag) 260 f_print(fout, "\t return "); 261 else 262 f_print(fout, "\t if "); 263 264 f_print(fout, 265 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_void, ", 266 proc->proc_name); 267 f_print(fout, 268 "(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,", 269 stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type), 270 RESULT); 271 272 if (mtflag) 273 f_print(fout, "\n\t\tTIMEOUT));\n"); 274 else 275 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 276 277 } else if (newstyle && args2) { 278 /* 279 * Newstyle, multiple arguments 280 * stuff arguments into structure 281 */ 282 for (l = proc->args.decls; l != NULL; l = l->next) { 283 f_print(fout, "\targ.%s = %s;\n", 284 l->decl.name, l->decl.name); 285 } 286 if (mtflag) 287 f_print(fout, "\treturn "); 288 else 289 f_print(fout, "\tif "); 290 f_print(fout, 291 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s", 292 proc->proc_name,proc->args.argname); 293 f_print(fout, 294 ", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,", 295 stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type), 296 RESULT); 297 if (mtflag) 298 f_print(fout, "\n\t\tTIMEOUT));\n"); 299 else 300 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 301 } else { /* single argument, new or old style */ 302 if (!mtflag) 303 f_print(fout, 304 "\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", 305 proc->proc_name, 306 stringfix(proc->args.decls->decl.type), 307 (newstyle ? "&" : ""), 308 (newstyle ? proc->args.decls->decl.name : "argp"), 309 stringfix(proc->res_type), ampr(proc->res_type), 310 RESULT); 311 else 312 313 f_print(fout, 314 "\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", 315 proc->proc_name, 316 stringfix(proc->args.decls->decl.type), 317 (newstyle ? "&" : ""), 318 (newstyle ? proc->args.decls->decl.name : "argp"), 319 stringfix(proc->res_type), "", 320 RESULT); 321 } 322 if (!mtflag) { 323 f_print(fout, "\t\treturn (NULL);\n"); 324 f_print(fout, "\t}\n"); 325 326 if (streq(proc->res_type, "void")) { 327 f_print(fout, "\treturn ((void *)%s%s);\n", 328 ampr(proc->res_type), RESULT); 329 } else { 330 f_print(fout, "\treturn (%s%s);\n", 331 ampr(proc->res_type), RESULT); 332 } 333 } 334 } 335