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