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