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    /*	$OpenBSD: rpc_sample.c,v 1.18 2012/12/05 23:20:26 deraadt Exp $	*/  | 
    
    
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    /*	$NetBSD: rpc_sample.c,v 1.2 1995/06/11 21:50:01 pk Exp $	*/  | 
    
    
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    /*  | 
    
    
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     * Copyright (c) 2010, Oracle America, Inc.  | 
    
    
    6  | 
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     *  | 
    
    
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     * Redistribution and use in source and binary forms, with or without  | 
    
    
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     * modification, are permitted provided that the following conditions are  | 
    
    
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     * met:  | 
    
    
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     *  | 
    
    
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     *     * Redistributions of source code must retain the above copyright  | 
    
    
    12  | 
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     *       notice, this list of conditions and the following disclaimer.  | 
    
    
    13  | 
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     *     * Redistributions in binary form must reproduce the above  | 
    
    
    14  | 
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     *       copyright notice, this list of conditions and the following  | 
    
    
    15  | 
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     *       disclaimer in the documentation and/or other materials  | 
    
    
    16  | 
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     *       provided with the distribution.  | 
    
    
    17  | 
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     *     * Neither the name of the "Oracle America, Inc." nor the names of its  | 
    
    
    18  | 
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     *       contributors may be used to endorse or promote products derived  | 
    
    
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     *       from this software without specific prior written permission.  | 
    
    
    20  | 
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     *  | 
    
    
    21  | 
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     *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  | 
    
    
    22  | 
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     *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT  | 
    
    
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     *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS  | 
    
    
    24  | 
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     *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE  | 
    
    
    25  | 
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     *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,  | 
    
    
    26  | 
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     *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  | 
    
    
    27  | 
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     *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE  | 
    
    
    28  | 
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     *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  | 
    
    
    29  | 
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     *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,  | 
    
    
    30  | 
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     *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING  | 
    
    
    31  | 
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     *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE  | 
    
    
    32  | 
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     *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  | 
    
    
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     */  | 
    
    
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    35  | 
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    /*  | 
    
    
    36  | 
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     * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler  | 
    
    
    37  | 
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     */  | 
    
    
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    39  | 
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    #include <stdio.h>  | 
    
    
    40  | 
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    #include <string.h>  | 
    
    
    41  | 
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    #include "rpc_parse.h"  | 
    
    
    42  | 
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    #include "rpc_util.h"  | 
    
    
    43  | 
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    44  | 
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    static char RQSTP[] = "rqstp";  | 
    
    
    45  | 
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    46  | 
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    static void write_sample_client(char *, version_list *);  | 
    
    
    47  | 
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    static void write_sample_server(definition *);  | 
    
    
    48  | 
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    static void return_type(proc_list *);  | 
    
    
    49  | 
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    50  | 
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    void  | 
    
    
    51  | 
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    write_sample_svc(def)  | 
    
    
    52  | 
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    	definition *def;  | 
    
    
    53  | 
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    { | 
    
    
    54  | 
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    55  | 
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    	if (def->def_kind != DEF_PROGRAM)  | 
    
    
    56  | 
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    		return;  | 
    
    
    57  | 
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    	write_sample_server(def);  | 
    
    
    58  | 
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    }  | 
    
    
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    61  | 
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    int  | 
    
    
    62  | 
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    write_sample_clnt(def)  | 
    
    
    63  | 
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    	definition *def;  | 
    
    
    64  | 
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    { | 
    
    
    65  | 
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    	version_list *vp;  | 
    
    
    66  | 
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    	int count = 0;  | 
    
    
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    68  | 
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    	if (def->def_kind != DEF_PROGRAM)  | 
    
    
    69  | 
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    		return(0);  | 
    
    
    70  | 
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    	/* generate sample code for each version */  | 
    
    
    71  | 
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    	for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { | 
    
    
    72  | 
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    		write_sample_client(def->def_name, vp);  | 
    
    
    73  | 
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    		++count;  | 
    
    
    74  | 
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    	}  | 
    
    
    75  | 
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    	return(count);  | 
    
    
    76  | 
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    }  | 
    
    
    77  | 
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    79  | 
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    static void  | 
    
    
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    write_sample_client(program_name, vp)  | 
    
    
    81  | 
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    	char *program_name;  | 
    
    
    82  | 
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    	version_list *vp;  | 
    
    
    83  | 
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    { | 
    
    
    84  | 
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    	proc_list *proc;  | 
    
    
    85  | 
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    	int i;  | 
    
    
    86  | 
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    	decl_list *l;  | 
    
    
    87  | 
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    88  | 
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    	fprintf(fout, "\n\nvoid\n");  | 
    
    
    89  | 
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    	pvname(program_name, vp->vers_num);  | 
    
    
    90  | 
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    	if (Cflag)  | 
    
    
    91  | 
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    		fprintf(fout,"(char *host)\n{\n"); | 
    
    
    92  | 
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    	else  | 
    
    
    93  | 
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    		fprintf(fout, "(host)\nchar *host;\n{\n"); | 
    
    
    94  | 
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    	fprintf(fout, "\tCLIENT *clnt;\n");  | 
    
    
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    	i = 0;  | 
    
    
    97  | 
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    	for (proc = vp->procs; proc != NULL; proc = proc->next) { | 
    
    
    98  | 
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    		fprintf(fout, "\t");  | 
    
    
    99  | 
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    		ptype(proc->res_prefix, proc->res_type, 1);  | 
    
    
    100  | 
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    		fprintf(fout, " *result_%d;\n",++i);  | 
    
    
    101  | 
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    		/* print out declarations for arguments */  | 
    
    
    102  | 
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    		if (proc->arg_num < 2 && !newstyle) { | 
    
    
    103  | 
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    			fprintf(fout, "\t");  | 
    
    
    104  | 
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    			if (!streq(proc->args.decls->decl.type, "void"))  | 
    
    
    105  | 
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    				ptype(proc->args.decls->decl.prefix,  | 
    
    
    106  | 
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    				    proc->args.decls->decl.type, 1);  | 
    
    
    107  | 
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    			else  | 
    
    
    108  | 
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    				fprintf(fout, "char *"); /* cannot have "void" type */  | 
    
    
    109  | 
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    			fprintf(fout, " ");  | 
    
    
    110  | 
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    			pvname(proc->proc_name, vp->vers_num);  | 
    
    
    111  | 
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    			fprintf(fout, "_arg;\n");  | 
    
    
    112  | 
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    		} else if (!streq(proc->args.decls->decl.type, "void")) { | 
    
    
    113  | 
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    			for (l = proc->args.decls; l != NULL; l = l->next) { | 
    
    
    114  | 
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    				fprintf(fout, "\t");  | 
    
    
    115  | 
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    				ptype(l->decl.prefix, l->decl.type, 1);  | 
    
    
    116  | 
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    				fprintf(fout, " ");  | 
    
    
    117  | 
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    				pvname(proc->proc_name, vp->vers_num);  | 
    
    
    118  | 
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    				fprintf(fout, "_%s;\n", l->decl.name);  | 
    
    
    119  | 
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    		/*		pdeclaration(proc->args.argname, &l->decl, 1, ";\n");*/  | 
    
    
    120  | 
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    			}  | 
    
    
    121  | 
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    		}  | 
    
    
    122  | 
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    	}  | 
    
    
    123  | 
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    124  | 
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    	/* generate creation of client handle */  | 
    
    
    125  | 
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    	fprintf(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n",  | 
    
    
    126  | 
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    	    program_name, vp->vers_name, tirpcflag? "netpath" : "udp");  | 
    
    
    127  | 
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    	fprintf(fout, "\tif (clnt == NULL) {\n"); | 
    
    
    128  | 
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    	fprintf(fout, "\t\tclnt_pcreateerror(host);\n");  | 
    
    
    129  | 
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    	fprintf(fout, "\t\texit(1);\n\t}\n");  | 
    
    
    130  | 
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    131  | 
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    	/* generate calls to procedures */  | 
    
    
    132  | 
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    	i = 0;  | 
    
    
    133  | 
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    	for (proc = vp->procs; proc != NULL; proc = proc->next) { | 
    
    
    134  | 
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    		fprintf(fout, "\tresult_%d = ",++i);  | 
    
    
    135  | 
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    		pvname(proc->proc_name, vp->vers_num);  | 
    
    
    136  | 
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    		if (proc->arg_num < 2 && !newstyle) { | 
    
    
    137  | 
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    			fprintf(fout, "("); | 
    
    
    138  | 
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    			if (streq(proc->args.decls->decl.type, "void"))  | 
    
    
    139  | 
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    				fprintf(fout, "(void*)");  | 
    
    
    140  | 
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    			fprintf(fout, "&");  | 
    
    
    141  | 
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    			pvname(proc->proc_name, vp->vers_num);  | 
    
    
    142  | 
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    			fprintf(fout, "_arg, clnt);\n");  | 
    
    
    143  | 
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    		} else if (streq(proc->args.decls->decl.type, "void")) { | 
    
    
    144  | 
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    			fprintf(fout, "(clnt);\n");  | 
    
    
    145  | 
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    		} else { | 
    
    
    146  | 
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    			fprintf(fout, "("); | 
    
    
    147  | 
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    			for (l = proc->args.decls;	l != NULL; l = l->next) { | 
    
    
    148  | 
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    				pvname(proc->proc_name, vp->vers_num);  | 
    
    
    149  | 
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    				fprintf(fout, "_%s, ", l->decl.name);  | 
    
    
    150  | 
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    			}  | 
    
    
    151  | 
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    			fprintf(fout, "clnt);\n");  | 
    
    
    152  | 
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    		}  | 
    
    
    153  | 
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    		fprintf(fout, "\tif (result_%d == NULL) {\n", i); | 
    
    
    154  | 
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    		fprintf(fout, "\t\tclnt_perror(clnt, \"call failed:\");\n");  | 
    
    
    155  | 
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    		fprintf(fout, "\t}\n");  | 
    
    
    156  | 
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    	}  | 
    
    
    157  | 
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    158  | 
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    	fprintf(fout, "\tclnt_destroy(clnt);\n");  | 
    
    
    159  | 
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    	fprintf(fout, "}\n");  | 
    
    
    160  | 
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    }  | 
    
    
    161  | 
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    162  | 
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    static void  | 
    
    
    163  | 
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    write_sample_server(def)  | 
    
    
    164  | 
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    	definition *def;  | 
    
    
    165  | 
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    { | 
    
    
    166  | 
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    	version_list *vp;  | 
    
    
    167  | 
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    	proc_list *proc;  | 
    
    
    168  | 
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    169  | 
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    	for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { | 
    
    
    170  | 
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    		for (proc = vp->procs; proc != NULL; proc = proc->next) { | 
    
    
    171  | 
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    			fprintf(fout, "\n");  | 
    
    
    172  | 
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    /*			if (Cflag)  | 
    
    
    173  | 
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    				fprintf(fout, "extern \"C\"{\n"); | 
    
    
    174  | 
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    */  | 
    
    
    175  | 
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    			return_type(proc);  | 
    
    
    176  | 
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    			fprintf(fout, "* \n");  | 
    
    
    177  | 
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    			pvname_svc(proc->proc_name, vp->vers_num);  | 
    
    
    178  | 
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    			printarglist(proc, RQSTP, "struct svc_req *");  | 
    
    
    179  | 
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    180  | 
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    			fprintf(fout, "{\n"); | 
    
    
    181  | 
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    			fprintf(fout, "\n\tstatic ");  | 
    
    
    182  | 
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    			if (!streq(proc->res_type, "void"))  | 
    
    
    183  | 
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    				return_type(proc);  | 
    
    
    184  | 
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    			else  | 
    
    
    185  | 
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    				fprintf(fout, "char*");  /* cannot have void type */  | 
    
    
    186  | 
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    			fprintf(fout, " result;\n");  | 
    
    
    187  | 
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    			fprintf(fout,  | 
    
    
    188  | 
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    			    "\n\t/*\n\t * insert server code here\n\t */\n\n");  | 
    
    
    189  | 
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    			if (!streq(proc->res_type, "void"))  | 
    
    
    190  | 
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    				fprintf(fout, "\treturn(&result);\n}\n");  | 
    
    
    191  | 
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    			else  /* cast back to void * */  | 
    
    
    192  | 
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    				fprintf(fout, "\treturn((void*) &result);\n}\n");  | 
    
    
    193  | 
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    /*			if (Cflag)  | 
    
    
    194  | 
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    				fprintf(fout, "}\n");  | 
    
    
    195  | 
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    */  | 
    
    
    196  | 
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    		}  | 
    
    
    197  | 
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    	}  | 
    
    
    198  | 
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    }  | 
    
    
    199  | 
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    200  | 
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    static void  | 
    
    
    201  | 
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    return_type(plist)  | 
    
    
    202  | 
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    	proc_list *plist;  | 
    
    
    203  | 
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    { | 
    
    
    204  | 
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    	ptype(plist->res_prefix, plist->res_type, 1);  | 
    
    
    205  | 
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    }  | 
    
    
    206  | 
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    207  | 
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    void  | 
    
    
    208  | 
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    add_sample_msg(void)  | 
    
    
    209  | 
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    { | 
    
    
    210  | 
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    	fprintf(fout, "/*\n");  | 
    
    
    211  | 
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    	fprintf(fout, " * This is sample code generated by rpcgen.\n");  | 
    
    
    212  | 
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    	fprintf(fout, " * These are only templates and you can use them\n");  | 
    
    
    213  | 
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    	fprintf(fout, " * as a guideline for developing your own functions.\n");  | 
    
    
    214  | 
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    	fprintf(fout, " */\n\n");  | 
    
    
    215  | 
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    }  | 
    
    
    216  | 
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    217  | 
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    void  | 
    
    
    218  | 
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    write_sample_clnt_main()  | 
    
    
    219  | 
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    { | 
    
    
    220  | 
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    	list *l;  | 
    
    
    221  | 
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    	definition *def;  | 
    
    
    222  | 
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    	version_list *vp;  | 
    
    
    223  | 
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    224  | 
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    	fprintf(fout, "\n\n");  | 
    
    
    225  | 
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    	if (Cflag)  | 
    
    
    226  | 
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    		fprintf(fout,"main(int argc, char *argv[])\n{\n"); | 
    
    
    227  | 
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    	else  | 
    
    
    228  | 
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    		fprintf(fout, "main(argc, argv)\nint argc;\nchar *argv[];\n{\n"); | 
    
    
    229  | 
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    230  | 
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    	fprintf(fout, "\tchar *host;");  | 
    
    
    231  | 
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    	fprintf(fout, "\n\n\tif (argc < 2) {"); | 
    
    
    232  | 
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    	fprintf(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n");  | 
    
    
    233  | 
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    	fprintf(fout, "\t\texit(1);\n\t}");  | 
    
    
    234  | 
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    	fprintf(fout, "\n\thost = argv[1];\n");  | 
    
    
    235  | 
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    236  | 
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    	for (l = defined; l != NULL; l = l->next) { | 
    
    
    237  | 
     | 
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    		def = l->val;  | 
    
    
    238  | 
     | 
     | 
    		if (def->def_kind != DEF_PROGRAM)  | 
    
    
    239  | 
     | 
     | 
    			continue;  | 
    
    
    240  | 
     | 
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    		for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { | 
    
    
    241  | 
     | 
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    			fprintf(fout, "\t");  | 
    
    
    242  | 
     | 
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    			pvname(def->def_name, vp->vers_num);  | 
    
    
    243  | 
     | 
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    			fprintf(fout, "(host);\n");  | 
    
    
    244  | 
     | 
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    		}  | 
    
    
    245  | 
     | 
     | 
    	}  | 
    
    
    246  | 
     | 
     | 
    	fprintf(fout, "}\n");  | 
    
    
    247  | 
     | 
     | 
    }  |