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 30 #ident "@(#)rpc_clntout.c 1.15 94/04/25 SMI" 31 32 #if 0 33 #ifndef lint 34 static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI"; 35 #endif 36 #endif 37 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 /* 42 * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler 43 * Copyright (C) 1987, Sun Microsytsems, Inc. 44 */ 45 #include <stdio.h> 46 #include <string.h> 47 #include <rpc/types.h> 48 #include "rpc_parse.h" 49 #include "rpc_util.h" 50 51 extern void pdeclaration( char *, declaration *, int, char * ); 52 void printarglist( proc_list *, char *, char *, char *); 53 static void write_program( definition * ); 54 static void printbody( proc_list * ); 55 56 static char RESULT[] = "clnt_res"; 57 58 59 #define DEFAULT_TIMEOUT 25 /* in seconds */ 60 61 62 void 63 write_stubs() 64 { 65 list *l; 66 definition *def; 67 68 f_print(fout, 69 "\n/* Default timeout can be changed using clnt_control() */\n"); 70 f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", 71 DEFAULT_TIMEOUT); 72 for (l = defined; l != NULL; l = l->next) { 73 def = (definition *) l->val; 74 if (def->def_kind == DEF_PROGRAM) { 75 write_program(def); 76 } 77 } 78 } 79 80 static void 81 write_program(def) 82 definition *def; 83 { 84 version_list *vp; 85 proc_list *proc; 86 87 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 88 for (proc = vp->procs; proc != NULL; proc = proc->next) { 89 f_print(fout, "\n"); 90 if (mtflag == 0) { 91 ptype(proc->res_prefix, proc->res_type, 1); 92 f_print(fout, "*\n"); 93 pvname(proc->proc_name, vp->vers_num); 94 printarglist(proc, RESULT, "clnt", "CLIENT *"); 95 } else { 96 f_print(fout, "enum clnt_stat \n"); 97 pvname(proc->proc_name, vp->vers_num); 98 printarglist(proc, RESULT, "clnt", "CLIENT *"); 99 100 } 101 f_print(fout, "{\n"); 102 printbody(proc); 103 104 f_print(fout, "}\n"); 105 } 106 } 107 } 108 109 /* 110 * Writes out declarations of procedure's argument list. 111 * In either ANSI C style, in one of old rpcgen style (pass by reference), 112 * or new rpcgen style (multiple arguments, pass by value); 113 */ 114 115 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ 116 117 void printarglist(proc, result, addargname, addargtype) 118 proc_list *proc; 119 char *result; 120 char* addargname, * addargtype; 121 { 122 123 decl_list *l; 124 125 if (!newstyle) { 126 /* old style: always pass argument by reference */ 127 if (Cflag) { /* C++ style heading */ 128 f_print(fout, "("); 129 ptype(proc->args.decls->decl.prefix, 130 proc->args.decls->decl.type, 1); 131 132 if (mtflag) {/* Generate result field */ 133 f_print(fout, "*argp, "); 134 ptype(proc->res_prefix, proc->res_type, 1); 135 f_print(fout, "*%s, %s%s)\n", 136 result, addargtype, addargname); 137 } else 138 f_print(fout, "*argp, %s%s)\n", addargtype, addargname); 139 } else { 140 if (!mtflag) 141 f_print(fout, "(argp, %s)\n", addargname); 142 else 143 f_print(fout, "(argp, %s, %s)\n", 144 result, addargname); 145 f_print(fout, "\t"); 146 ptype(proc->args.decls->decl.prefix, 147 proc->args.decls->decl.type, 1); 148 f_print(fout, "*argp;\n"); 149 if (mtflag) { 150 f_print(fout, "\t"); 151 ptype(proc->res_prefix, proc->res_type, 1); 152 f_print(fout, "*%s;\n", result); 153 } 154 } 155 } else if (streq(proc->args.decls->decl.type, "void")) { 156 /* newstyle, 0 argument */ 157 if (mtflag) { 158 f_print(fout, "("); 159 160 161 if (Cflag) { 162 ptype(proc->res_prefix, proc->res_type, 1); 163 f_print(fout, "*%s, %s%s)\n", 164 result, addargtype, addargname); 165 } 166 else 167 f_print(fout, "(%s)\n", addargname); 168 169 } else 170 if (Cflag) 171 f_print(fout, "(%s%s)\n", addargtype, addargname); 172 else 173 f_print(fout, "(%s)\n", addargname); 174 } else { 175 /* new style, 1 or multiple arguments */ 176 if (!Cflag) { 177 f_print(fout, "("); 178 for (l = proc->args.decls; l != NULL; l = l->next) 179 f_print(fout, "%s, ", l->decl.name); 180 if (mtflag) 181 f_print(fout, "%s, ", result); 182 183 f_print(fout, "%s)\n", addargname); 184 for (l = proc->args.decls; l != NULL; l = l->next) { 185 pdeclaration(proc->args.argname, 186 &l->decl, 1, ";\n"); 187 } 188 if (mtflag) { 189 f_print(fout, "\t"); 190 ptype(proc->res_prefix, proc->res_type, 1); 191 f_print(fout, "*%s;\n", result); 192 } 193 194 } else { /* C++ style header */ 195 f_print(fout, "("); 196 for (l = proc->args.decls; l != NULL; l = l->next) { 197 pdeclaration(proc->args.argname, &l->decl, 0, 198 ", "); 199 } 200 if (mtflag) { 201 ptype(proc->res_prefix, proc->res_type, 1); 202 f_print(fout, "*%s, ", result); 203 204 } 205 f_print(fout, "%s%s)\n", addargtype, addargname); 206 } 207 } 208 209 if (!Cflag) 210 f_print(fout, "\t%s%s;\n", addargtype, addargname); 211 } 212 213 214 215 static char * 216 ampr(type) 217 char *type; 218 { 219 if (isvectordef(type, REL_ALIAS)) { 220 return (""); 221 } else { 222 return ("&"); 223 } 224 } 225 226 static void 227 printbody(proc) 228 proc_list *proc; 229 { 230 decl_list *l; 231 bool_t args2 = (proc->arg_num > 1); 232 233 /* 234 * For new style with multiple arguments, need a structure in which 235 * to stuff the arguments. 236 */ 237 238 239 if (newstyle && args2) { 240 f_print(fout, "\t%s", proc->args.argname); 241 f_print(fout, " arg;\n"); 242 } 243 if (!mtflag) { 244 f_print(fout, "\tstatic "); 245 if (streq(proc->res_type, "void")) { 246 f_print(fout, "char "); 247 } else { 248 ptype(proc->res_prefix, proc->res_type, 0); 249 } 250 f_print(fout, "%s;\n", RESULT); 251 f_print(fout, "\n"); 252 f_print(fout, "\tmemset((char *)%s%s, 0, sizeof (%s));\n", 253 ampr(proc->res_type), RESULT, RESULT); 254 255 } 256 if (newstyle && !args2 && 257 (streq(proc->args.decls->decl.type, "void"))) { 258 /* newstyle, 0 arguments */ 259 260 if (mtflag) 261 f_print(fout, "\t return "); 262 else 263 f_print(fout, "\t if "); 264 265 f_print(fout, 266 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_void, ", 267 proc->proc_name); 268 f_print(fout, 269 "(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,", 270 stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type), 271 RESULT); 272 273 if (mtflag) 274 f_print(fout, "\n\t\tTIMEOUT));\n"); 275 else 276 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 277 278 } else if (newstyle && args2) { 279 /* 280 * Newstyle, multiple arguments 281 * stuff arguments into structure 282 */ 283 for (l = proc->args.decls; l != NULL; l = l->next) { 284 f_print(fout, "\targ.%s = %s;\n", 285 l->decl.name, l->decl.name); 286 } 287 if (mtflag) 288 f_print(fout, "\treturn "); 289 else 290 f_print(fout, "\tif "); 291 f_print(fout, 292 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s", 293 proc->proc_name,proc->args.argname); 294 f_print(fout, 295 ", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,", 296 stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type), 297 RESULT); 298 if (mtflag) 299 f_print(fout, "\n\t\tTIMEOUT));\n"); 300 else 301 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 302 } else { /* single argument, new or old style */ 303 if (!mtflag) 304 f_print(fout, 305 "\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", 306 proc->proc_name, 307 stringfix(proc->args.decls->decl.type), 308 (newstyle ? "&" : ""), 309 (newstyle ? proc->args.decls->decl.name : "argp"), 310 stringfix(proc->res_type), ampr(proc->res_type), 311 RESULT); 312 else 313 314 f_print(fout, 315 "\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", 316 proc->proc_name, 317 stringfix(proc->args.decls->decl.type), 318 (newstyle ? "&" : ""), 319 (newstyle ? proc->args.decls->decl.name : "argp"), 320 stringfix(proc->res_type), "", 321 RESULT); 322 } 323 if (!mtflag) { 324 f_print(fout, "\t\treturn (NULL);\n"); 325 f_print(fout, "\t}\n"); 326 327 if (streq(proc->res_type, "void")) { 328 f_print(fout, "\treturn ((void *)%s%s);\n", 329 ampr(proc->res_type), RESULT); 330 } else { 331 f_print(fout, "\treturn (%s%s);\n", 332 ampr(proc->res_type), RESULT); 333 } 334 } 335 } 336