1 /* $NetBSD: rpc_clntout.c,v 1.8 1997/10/18 10:53:37 lukem Exp $ */ 2 /* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user or with the express written consent of 9 * Sun Microsystems, Inc. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI"; 36 #else 37 __RCSID("$NetBSD: rpc_clntout.c,v 1.8 1997/10/18 10:53:37 lukem Exp $"); 38 #endif 39 #endif 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_scan.h" 49 #include "rpc_parse.h" 50 #include "rpc_util.h" 51 52 static void write_program __P((definition *)); 53 static char *ampr __P((char *)); 54 static void printbody __P((proc_list *)); 55 56 #define DEFAULT_TIMEOUT 25 /* in seconds */ 57 static char RESULT[] = "clnt_res"; 58 59 60 void 61 write_stubs() 62 { 63 list *l; 64 definition *def; 65 66 f_print(fout, 67 "\n/* Default timeout can be changed using clnt_control() */\n"); 68 f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", 69 DEFAULT_TIMEOUT); 70 for (l = defined; l != NULL; l = l->next) { 71 def = (definition *) l->val; 72 if (def->def_kind == DEF_PROGRAM) { 73 write_program(def); 74 } 75 } 76 } 77 78 static void 79 write_program(def) 80 definition *def; 81 { 82 version_list *vp; 83 proc_list *proc; 84 85 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 86 for (proc = vp->procs; proc != NULL; proc = proc->next) { 87 f_print(fout, "\n"); 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, "clnt", "CLIENT *"); 92 f_print(fout, "{\n"); 93 printbody(proc); 94 f_print(fout, "}\n"); 95 } 96 } 97 } 98 /* Writes out declarations of procedure's argument list. 99 In either ANSI C style, in one of old rpcgen style (pass by reference), 100 or new rpcgen style (multiple arguments, pass by value); 101 */ 102 103 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ 104 105 void 106 printarglist(proc, addargname, addargtype) 107 proc_list *proc; 108 char *addargname, *addargtype; 109 { 110 111 decl_list *l; 112 113 if (!newstyle) { /* old style: always pass argument by 114 * reference */ 115 if (Cflag) { /* C++ style heading */ 116 f_print(fout, "("); 117 ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); 118 f_print(fout, "*argp, %s%s)\n", addargtype, addargname); 119 } else { 120 f_print(fout, "(argp, %s)\n", addargname); 121 f_print(fout, "\t"); 122 ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); 123 f_print(fout, "*argp;\n"); 124 } 125 } else 126 if (streq(proc->args.decls->decl.type, "void")) { 127 /* newstyle, 0 argument */ 128 if (Cflag) 129 f_print(fout, "(%s%s)\n", addargtype, addargname); 130 else 131 f_print(fout, "(%s)\n", addargname); 132 } else { 133 /* new style, 1 or multiple arguments */ 134 if (!Cflag) { 135 f_print(fout, "("); 136 for (l = proc->args.decls; l != NULL; l = l->next) 137 f_print(fout, "%s, ", l->decl.name); 138 f_print(fout, "%s)\n", addargname); 139 for (l = proc->args.decls; l != NULL; l = l->next) { 140 pdeclaration(proc->args.argname, &l->decl, 1, ";\n"); 141 } 142 } else {/* C++ style header */ 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 f_print(fout, " %s%s)\n", addargtype, addargname); 148 } 149 } 150 151 if (!Cflag) 152 f_print(fout, "\t%s%s;\n", addargtype, addargname); 153 } 154 155 156 157 static char * 158 ampr(type) 159 char *type; 160 { 161 if (isvectordef(type, REL_ALIAS)) { 162 return (""); 163 } else { 164 return ("&"); 165 } 166 } 167 168 static void 169 printbody(proc) 170 proc_list *proc; 171 { 172 decl_list *l; 173 bool_t args2 = (proc->arg_num > 1); 174 175 /* For new style with multiple arguments, need a structure in which to 176 * stuff the arguments. */ 177 if (newstyle && args2) { 178 f_print(fout, "\t%s", proc->args.argname); 179 f_print(fout, " arg;\n"); 180 } 181 f_print(fout, "\tstatic "); 182 if (streq(proc->res_type, "void")) { 183 f_print(fout, "char "); 184 } else { 185 ptype(proc->res_prefix, proc->res_type, 0); 186 } 187 f_print(fout, "%s;\n", RESULT); 188 f_print(fout, "\n"); 189 f_print(fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n", 190 ampr(proc->res_type), RESULT, RESULT); 191 if (newstyle && !args2 && (streq(proc->args.decls->decl.type, "void"))) { 192 /* newstyle, 0 arguments */ 193 f_print(fout, 194 "\tif (clnt_call(clnt, %s, xdr_void", proc->proc_name); 195 f_print(fout, 196 ", NULL, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n", 197 stringfix(proc->res_type), ampr(proc->res_type), RESULT); 198 199 } else 200 if (newstyle && args2) { 201 /* newstyle, multiple arguments: stuff arguments into 202 * structure */ 203 for (l = proc->args.decls; l != NULL; l = l->next) { 204 f_print(fout, "\targ.%s = %s;\n", 205 l->decl.name, l->decl.name); 206 } 207 f_print(fout, 208 "\tif (clnt_call(clnt, %s, xdr_%s, &arg, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS)\n", 209 proc->proc_name, 210 proc->args.argname, 211 stringfix(proc->res_type), 212 ampr(proc->res_type), RESULT); 213 } else { /* single argument, new or old style */ 214 f_print(fout, 215 "\tif (clnt_call(clnt, %s, xdr_%s, %s%s, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS)\n", 216 proc->proc_name, 217 stringfix(proc->args.decls->decl.type), 218 (newstyle ? "&" : ""), 219 (newstyle ? proc->args.decls->decl.name : "argp"), 220 stringfix(proc->res_type), 221 ampr(proc->res_type), RESULT); 222 } 223 f_print(fout, "\t\treturn (NULL);\n"); 224 if (streq(proc->res_type, "void")) { 225 f_print(fout, "\treturn ((void *)%s%s);\n", 226 ampr(proc->res_type), RESULT); 227 } else { 228 f_print(fout, "\treturn (%s%s);\n", ampr(proc->res_type), RESULT); 229 } 230 } 231