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 1.5 2004/06/19 16:40:36 joerg 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 #define DEFAULT_TIMEOUT 25 /* in seconds */ 53 54 void 55 write_stubs(void) 56 { 57 list *l; 58 definition *def; 59 60 f_print(fout, 61 "\n/* Default timeout can be changed using clnt_control() */\n"); 62 f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", 63 DEFAULT_TIMEOUT); 64 for (l = defined; l != NULL; l = l->next) { 65 def = (definition *) l->val; 66 if (def->def_kind == DEF_PROGRAM) 67 write_program(def); 68 } 69 } 70 71 static void 72 write_program(definition *def) 73 { 74 version_list *vp; 75 proc_list *proc; 76 77 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 78 for (proc = vp->procs; proc != NULL; proc = proc->next) { 79 f_print(fout, "\n"); 80 if (mtflag == 0) { 81 ptype(proc->res_prefix, proc->res_type, 1); 82 f_print(fout, "*\n"); 83 pvname(proc->proc_name, vp->vers_num); 84 printarglist(proc, RESULT, "clnt", "CLIENT *"); 85 } else { 86 f_print(fout, "enum clnt_stat \n"); 87 pvname(proc->proc_name, vp->vers_num); 88 printarglist(proc, RESULT, "clnt", "CLIENT *"); 89 90 } 91 f_print(fout, "{\n"); 92 printbody(proc); 93 94 f_print(fout, "}\n"); 95 } 96 } 97 } 98 99 /* 100 * Writes out declarations of procedure's argument list. 101 * In either ANSI C style, in one of old rpcgen style (pass by reference), 102 * or new rpcgen style (multiple arguments, pass by value); 103 */ 104 105 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ 106 107 void 108 printarglist(proc_list *proc, char *result, char *addargname, char *addargtype) 109 { 110 decl_list *l; 111 112 if (!newstyle) { 113 /* old style: always pass argument by reference */ 114 if (Cflag) { /* C++ style heading */ 115 f_print(fout, "("); 116 ptype(proc->args.decls->decl.prefix, 117 proc->args.decls->decl.type, 1); 118 119 if (mtflag) {/* Generate result field */ 120 f_print(fout, "*argp, "); 121 ptype(proc->res_prefix, proc->res_type, 1); 122 f_print(fout, "*%s, %s%s)\n", 123 result, addargtype, addargname); 124 } else 125 f_print(fout, "*argp, %s%s)\n", addargtype, 126 addargname); 127 } else { 128 if (!mtflag) 129 f_print(fout, "(argp, %s)\n", addargname); 130 else 131 f_print(fout, "(argp, %s, %s)\n", 132 result, addargname); 133 f_print(fout, "\t"); 134 ptype(proc->args.decls->decl.prefix, 135 proc->args.decls->decl.type, 1); 136 f_print(fout, "*argp;\n"); 137 if (mtflag) { 138 f_print(fout, "\t"); 139 ptype(proc->res_prefix, proc->res_type, 1); 140 f_print(fout, "*%s;\n", result); 141 } 142 } 143 } else if (streq(proc->args.decls->decl.type, "void")) { 144 /* newstyle, 0 argument */ 145 if (mtflag) { 146 f_print(fout, "("); 147 148 if (Cflag) { 149 ptype(proc->res_prefix, proc->res_type, 1); 150 f_print(fout, "*%s, %s%s)\n", 151 result, addargtype, addargname); 152 } 153 else { 154 f_print(fout, "(%s)\n", addargname); 155 } 156 } else if (Cflag) { 157 f_print(fout, "(%s%s)\n", addargtype, addargname); 158 } else { 159 f_print(fout, "(%s)\n", addargname); 160 } 161 } else { 162 /* new style, 1 or multiple arguments */ 163 if (!Cflag) { 164 f_print(fout, "("); 165 for (l = proc->args.decls; l != NULL; l = l->next) 166 f_print(fout, "%s, ", l->decl.name); 167 if (mtflag) 168 f_print(fout, "%s, ", result); 169 170 f_print(fout, "%s)\n", addargname); 171 for (l = proc->args.decls; l != NULL; l = l->next) { 172 pdeclaration(proc->args.argname, 173 &l->decl, 1, ";\n"); 174 } 175 if (mtflag) { 176 f_print(fout, "\t"); 177 ptype(proc->res_prefix, proc->res_type, 1); 178 f_print(fout, "*%s;\n", result); 179 } 180 181 } else { /* C++ style header */ 182 f_print(fout, "("); 183 for (l = proc->args.decls; l != NULL; l = l->next) { 184 pdeclaration(proc->args.argname, &l->decl, 0, 185 ", "); 186 } 187 if (mtflag) { 188 ptype(proc->res_prefix, proc->res_type, 1); 189 f_print(fout, "*%s, ", result); 190 191 } 192 f_print(fout, "%s%s)\n", addargtype, addargname); 193 } 194 } 195 196 if (!Cflag) 197 f_print(fout, "\t%s%s;\n", addargtype, addargname); 198 } 199 200 201 202 static char * 203 ampr(char *type) 204 { 205 if (isvectordef(type, REL_ALIAS)) 206 return (""); 207 else 208 return ("&"); 209 } 210 211 static void 212 printbody(proc_list *proc) 213 { 214 decl_list *l; 215 bool_t args2 = (proc->arg_num > 1); 216 217 /* 218 * For new style with multiple arguments, need a structure in which 219 * to stuff the arguments. 220 */ 221 222 223 if (newstyle && args2) { 224 f_print(fout, "\t%s", proc->args.argname); 225 f_print(fout, " arg;\n"); 226 } 227 if (!mtflag) { 228 f_print(fout, "\tstatic "); 229 if (streq(proc->res_type, "void")) 230 f_print(fout, "char "); 231 else 232 ptype(proc->res_prefix, proc->res_type, 0); 233 f_print(fout, "%s;\n", RESULT); 234 f_print(fout, "\n"); 235 f_print(fout, "\tmemset((char *)%s%s, 0, sizeof (%s));\n", 236 ampr(proc->res_type), RESULT, RESULT); 237 } 238 if (newstyle && !args2 && 239 (streq(proc->args.decls->decl.type, "void"))) { 240 /* newstyle, 0 arguments */ 241 242 if (mtflag) 243 f_print(fout, "\t return "); 244 else 245 f_print(fout, "\t if "); 246 247 f_print(fout, 248 "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_void, ", 249 proc->proc_name); 250 f_print(fout, "(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, " 251 "(caddr_t) %s%s,", stringfix(proc->res_type), 252 (mtflag) ? "" : ampr(proc->res_type), RESULT); 253 254 if (mtflag) 255 f_print(fout, "\n\t\tTIMEOUT));\n"); 256 else 257 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 258 259 } else if (newstyle && args2) { 260 /* 261 * Newstyle, multiple arguments 262 * stuff arguments into structure 263 */ 264 for (l = proc->args.decls; l != NULL; l = l->next) { 265 f_print(fout, "\targ.%s = %s;\n", 266 l->decl.name, l->decl.name); 267 } 268 if (mtflag) 269 f_print(fout, "\treturn "); 270 else 271 f_print(fout, "\tif "); 272 f_print(fout, "(clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s", 273 proc->proc_name,proc->args.argname); 274 f_print(fout, ", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, " 275 "(caddr_t) %s%s,", stringfix(proc->res_type), 276 (mtflag) ? "" : ampr(proc->res_type), RESULT); 277 if (mtflag) 278 f_print(fout, "\n\t\tTIMEOUT));\n"); 279 else 280 f_print(fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n"); 281 } else { /* single argument, new or old style */ 282 if (!mtflag) { 283 f_print(fout, "\tif (clnt_call(clnt, %s,\n" 284 "\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n" 285 "\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n" 286 "\t\tTIMEOUT) != RPC_SUCCESS) {\n", 287 proc->proc_name, 288 stringfix(proc->args.decls->decl.type), 289 (newstyle ? "&" : ""), 290 (newstyle) ? proc->args.decls->decl.name : "argp", 291 stringfix(proc->res_type), 292 ampr(proc->res_type), RESULT); 293 } else { 294 f_print(fout, "\treturn (clnt_call(clnt, %s,\n" 295 "\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n" 296 "\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n" 297 "\t\tTIMEOUT));\n", proc->proc_name, 298 stringfix(proc->args.decls->decl.type), 299 (newstyle ? "&" : ""), 300 (newstyle) ? proc->args.decls->decl.name : "argp", 301 stringfix(proc->res_type), "", RESULT); 302 } 303 } 304 if (!mtflag) { 305 f_print(fout, "\t\treturn (NULL);\n"); 306 f_print(fout, "\t}\n"); 307 308 if (streq(proc->res_type, "void")) { 309 f_print(fout, "\treturn ((void *)%s%s);\n", 310 ampr(proc->res_type), RESULT); 311 } else { 312 f_print(fout, "\treturn (%s%s);\n", 313 ampr(proc->res_type), RESULT); 314 } 315 } 316 } 317