/* $OpenBSD: rpc_clntout.c,v 1.2 1996/06/26 05:38:35 deraadt Exp $ */ /* $NetBSD: rpc_clntout.c,v 1.4 1995/06/11 21:49:52 pk Exp $ */ /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape * media and as a part of the software program in whole or part. Users * may copy or modify Sun RPC without charge, but are not authorized * to license or distribute it to anyone else except as part of a product or * program developed by the user or with the express written consent of * Sun Microsystems, Inc. * * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. * * Sun RPC is provided with no support and without any obligation on the * part of Sun Microsystems, Inc. to assist in its use, correction, * modification or enhancement. * * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC * OR ANY PART THEREOF. * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ #ifndef lint static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI"; #endif /* * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler * Copyright (C) 1987, Sun Microsytsems, Inc. */ #include #include #include #include "rpc_parse.h" #include "rpc_util.h" static write_program __P((definition *)); static void printbody __P((proc_list *)); extern pdeclaration(); #define DEFAULT_TIMEOUT 25 /* in seconds */ static char RESULT[] = "clnt_res"; void write_stubs() { list *l; definition *def; f_print(fout, "\n/* Default timeout can be changed using clnt_control() */\n"); f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n", DEFAULT_TIMEOUT); for (l = defined; l != NULL; l = l->next) { def = (definition *) l->val; if (def->def_kind == DEF_PROGRAM) { write_program(def); } } } static write_program(def) definition *def; { version_list *vp; proc_list *proc; for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { for (proc = vp->procs; proc != NULL; proc = proc->next) { f_print(fout, "\n"); ptype(proc->res_prefix, proc->res_type, 1); f_print(fout, "*\n"); pvname(proc->proc_name, vp->vers_num); printarglist( proc, "clnt", "CLIENT *" ); f_print(fout, "{\n"); printbody(proc); f_print(fout, "}\n"); } } } /* Writes out declarations of procedure's argument list. In either ANSI C style, in one of old rpcgen style (pass by reference), or new rpcgen style (multiple arguments, pass by value); */ /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */ void printarglist( proc, addargname, addargtype ) proc_list *proc; char *addargname, *addargtype; { decl_list *l; if (!newstyle) { /* old style: always pass argument by reference */ if (Cflag) { /* C++ style heading */ f_print(fout, "("); ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); f_print(fout, "*argp, %s%s)\n", addargtype, addargname ); } else { f_print(fout, "(argp, %s)\n", addargname); f_print(fout, "\t"); ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1); f_print(fout, "*argp;\n"); } } else if (streq( proc->args.decls->decl.type, "void")) { /* newstyle, 0 argument */ if( Cflag ) f_print(fout, "(%s%s)\n", addargtype, addargname ); else f_print(fout, "(%s)\n", addargname); } else { /* new style, 1 or multiple arguments */ if( !Cflag ) { f_print(fout, "("); for (l = proc->args.decls; l != NULL; l = l->next) f_print(fout, "%s, ", l->decl.name); f_print(fout, "%s)\n", addargname ); for (l = proc->args.decls; l != NULL; l = l->next) { pdeclaration(proc->args.argname, &l->decl, 1, ";\n" ); } } else { /* C++ style header */ f_print(fout, "("); for(l = proc->args.decls; l != NULL; l = l->next) { pdeclaration(proc->args.argname, &l->decl, 0, ", " ); } f_print(fout, " %s%s)\n", addargtype, addargname ); } } if( !Cflag ) f_print(fout, "\t%s%s;\n", addargtype, addargname ); } static char * ampr(type) char *type; { if (isvectordef(type, REL_ALIAS)) { return (""); } else { return ("&"); } } static void printbody(proc) proc_list *proc; { decl_list *l; bool_t args2 = (proc->arg_num > 1); int i; /* For new style with multiple arguments, need a structure in which to stuff the arguments. */ if ( newstyle && args2) { f_print(fout, "\t%s", proc->args.argname); f_print(fout, " arg;\n"); } f_print(fout, "\tstatic "); if (streq(proc->res_type, "void")) { f_print(fout, "char "); } else { ptype(proc->res_prefix, proc->res_type, 0); } f_print(fout, "%s;\n",RESULT); f_print(fout, "\n"); f_print(fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n", ampr(proc->res_type ), RESULT, RESULT); if (newstyle && !args2 && (streq( proc->args.decls->decl.type, "void"))) { /* newstyle, 0 arguments */ f_print(fout, "\tif (clnt_call(clnt, %s, xdr_void", proc->proc_name); f_print(fout, ", NULL, xdr_%s, %s,%s, TIMEOUT) != RPC_SUCCESS) {\n", stringfix(proc->res_type), ampr(proc->res_type), RESULT); } else if ( newstyle && args2) { /* newstyle, multiple arguments: stuff arguments into structure */ for (l = proc->args.decls; l != NULL; l = l->next) { f_print(fout, "\targ.%s = %s;\n", l->decl.name, l->decl.name); } f_print(fout, "\tif (clnt_call(clnt, %s, xdr_%s", proc->proc_name, proc->args.argname); f_print(fout, ", &arg, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n", stringfix(proc->res_type), ampr(proc->res_type), RESULT); } else { /* single argument, new or old style */ f_print(fout, "\tif (clnt_call(clnt, %s, xdr_%s, %s%s, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n", proc->proc_name, stringfix(proc->args.decls->decl.type), (newstyle ? "&" : ""), (newstyle ? proc->args.decls->decl.name : "argp"), stringfix(proc->res_type), ampr(proc->res_type),RESULT); } f_print(fout, "\t\treturn (NULL);\n"); f_print(fout, "\t}\n"); if (streq(proc->res_type, "void")) { f_print(fout, "\treturn ((void *)%s%s);\n", ampr(proc->res_type),RESULT); } else { f_print(fout, "\treturn (%s%s);\n", ampr(proc->res_type),RESULT); } }