rpc_clntout.c revision 1.1.1.1
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 or with the express written consent of 8 * Sun Microsystems, Inc. 9 * 10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 13 * 14 * Sun RPC is provided with no support and without any obligation on the 15 * part of Sun Microsystems, Inc. to assist in its use, correction, 16 * modification or enhancement. 17 * 18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 20 * OR ANY PART THEREOF. 21 * 22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 23 * or profits or other special, indirect and consequential damages, even if 24 * Sun has been advised of the possibility of such damages. 25 * 26 * Sun Microsystems, Inc. 27 * 2550 Garcia Avenue 28 * Mountain View, California 94043 29 */ 30 31 #ifndef lint 32 static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI"; 33 #endif 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 pdeclaration(); 46 void printarglist(); 47 48 #define DEFAULT_TIMEOUT 25 /* in seconds */ 49 static char RESULT[] = "clnt_res"; 50 51 52 void 53 write_stubs() 54 { 55 list *l; 56 definition *def; 57 58 f_print(fout, 59 "\n/* Default timeout can be changed using clnt_control() */\n"); 60 f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", 61 DEFAULT_TIMEOUT); 62 for (l = defined; l != NULL; l = l->next) { 63 def = (definition *) l->val; 64 if (def->def_kind == DEF_PROGRAM) { 65 write_program(def); 66 } 67 } 68 } 69 70 static 71 write_program(def) 72 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 ptype(proc->res_prefix, proc->res_type, 1); 81 f_print(fout, "*\n"); 82 pvname(proc->proc_name, vp->vers_num); 83 printarglist( proc, "clnt", "CLIENT *" ); 84 f_print(fout, "{\n"); 85 printbody(proc); 86 f_print(fout, "}\n"); 87 } 88 } 89 } 90 91 /* Writes out declarations of procedure's argument list. 92 In either ANSI C style, in one of old rpcgen style (pass by reference), 93 or new rpcgen style (multiple arguments, pass by value); 94 */ 95 96 /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ 97 98 void printarglist( proc, addargname, addargtype ) 99 proc_list *proc; 100 char* addargname, * addargtype; 101 { 102 103 decl_list *l; 104 105 if (!newstyle) { /* old style: always pass argument by reference */ 106 if (Cflag) { /* C++ style heading */ 107 f_print(fout, "("); 108 ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); 109 f_print(fout, "*argp, %s%s)\n", addargtype, addargname ); 110 } else { 111 f_print(fout, "(argp, %s)\n", addargname); 112 f_print(fout, "\t"); 113 ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); 114 f_print(fout, "*argp;\n"); 115 } 116 } else if (streq( proc->args.decls->decl.type, "void")) { 117 /* newstyle, 0 argument */ 118 if( Cflag ) 119 f_print(fout, "(%s%s)\n", addargtype, addargname ); 120 else 121 f_print(fout, "(%s)\n", addargname); 122 } else { 123 /* new style, 1 or multiple arguments */ 124 if( !Cflag ) { 125 f_print(fout, "("); 126 for (l = proc->args.decls; l != NULL; l = l->next) 127 f_print(fout, "%s, ", l->decl.name); 128 f_print(fout, "%s)\n", addargname ); 129 for (l = proc->args.decls; l != NULL; l = l->next) { 130 pdeclaration(proc->args.argname, &l->decl, 1, ";\n" ); 131 } 132 } else { /* C++ style header */ 133 f_print(fout, "("); 134 for(l = proc->args.decls; l != NULL; l = l->next) { 135 pdeclaration(proc->args.argname, &l->decl, 0, ", " ); 136 } 137 f_print(fout, " %s%s)\n", addargtype, addargname ); 138 } 139 } 140 141 if( !Cflag ) 142 f_print(fout, "\t%s%s;\n", addargtype, addargname ); 143 } 144 145 146 147 static char * 148 ampr(type) 149 char *type; 150 { 151 if (isvectordef(type, REL_ALIAS)) { 152 return (""); 153 } else { 154 return ("&"); 155 } 156 } 157 158 static 159 printbody(proc) 160 proc_list *proc; 161 { 162 decl_list *l; 163 bool_t args2 = (proc->arg_num > 1); 164 int i; 165 166 /* For new style with multiple arguments, need a structure in which 167 to stuff the arguments. */ 168 if ( newstyle && args2) { 169 f_print(fout, "\t%s", proc->args.argname); 170 f_print(fout, " arg;\n"); 171 } 172 f_print(fout, "\tstatic "); 173 if (streq(proc->res_type, "void")) { 174 f_print(fout, "char "); 175 } else { 176 ptype(proc->res_prefix, proc->res_type, 0); 177 } 178 f_print(fout, "%s;\n",RESULT); 179 f_print(fout, "\n"); 180 f_print(fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n", 181 ampr(proc->res_type ), RESULT, RESULT); 182 if (newstyle && !args2 && (streq( proc->args.decls->decl.type, "void"))) { 183 /* newstyle, 0 arguments */ 184 f_print(fout, 185 "\tif (clnt_call(clnt, %s, xdr_void", proc->proc_name); 186 f_print(fout, 187 ", NULL, xdr_%s, %s,%s, TIMEOUT) != RPC_SUCCESS) {\n", 188 stringfix(proc->res_type), ampr(proc->res_type), RESULT); 189 190 } else if ( newstyle && args2) { 191 /* newstyle, multiple arguments: stuff arguments into structure */ 192 for (l = proc->args.decls; l != NULL; l = l->next) { 193 f_print(fout, "\targ.%s = %s;\n", 194 l->decl.name, l->decl.name); 195 } 196 f_print(fout, 197 "\tif (clnt_call(clnt, %s, xdr_%s", proc->proc_name, 198 proc->args.argname); 199 f_print(fout, 200 ", &arg, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n", 201 stringfix(proc->res_type), ampr(proc->res_type), RESULT); 202 } else { /* single argument, new or old style */ 203 f_print(fout, 204 "\tif (clnt_call(clnt, %s, xdr_%s, %s%s, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n", 205 proc->proc_name, 206 stringfix(proc->args.decls->decl.type), 207 (newstyle ? "&" : ""), 208 (newstyle ? proc->args.decls->decl.name : "argp"), 209 stringfix(proc->res_type), ampr(proc->res_type),RESULT); 210 } 211 f_print(fout, "\t\treturn (NULL);\n"); 212 f_print(fout, "\t}\n"); 213 if (streq(proc->res_type, "void")) { 214 f_print(fout, "\treturn ((void *)%s%s);\n", 215 ampr(proc->res_type),RESULT); 216 } else { 217 f_print(fout, "\treturn (%s%s);\n", ampr(proc->res_type),RESULT); 218 } 219 } 220 221
Indexes created Fri Oct 17 03:10:13 GMT 2025