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
31#if 0
32#ifndef lint
33#ident	"@(#)rpc_main.c	1.21	94/04/25 SMI"
34static char sccsid[] = "@(#)rpc_main.c 1.30 89/03/30 (C) 1987 SMI";
35#endif
36#endif
37
38#include <sys/cdefs.h>
39__FBSDID("$FreeBSD$");
40
41/*
42 * rpc_main.c, Top level of the RPC protocol compiler.
43 * Copyright (C) 1987, Sun Microsystems, Inc.
44 */
45
46#include <err.h>
47#include <ctype.h>
48#include <stdio.h>
49#include <string.h>
50#include <unistd.h>
51#include <sys/types.h>
52#include <sys/param.h>
53#include <sys/file.h>
54#include <sys/stat.h>
55#include "rpc_parse.h"
56#include "rpc_scan.h"
57#include "rpc_util.h"
58
59static void c_output(const char *, const char *, int, const char *);
60static void h_output(const char *, const char *, int, const char *, int);
61static void l_output(const char *, const char *, int, const char *);
62static void t_output(const char *, const char *, int, const char *);
63static void clnt_output(const char *, const char *, int, const char * );
64static char *generate_guard(const char *);
65static void c_initialize(void);
66
67static void usage(void);
68static void options_usage(void);
69static int do_registers(int, const char **);
70static int parseargs(int, const char **, struct commandline *);
71static void svc_output(const char *, const char *, int, const char *);
72static void mkfile_output(struct commandline *);
73static void s_output(int, const char **, const char *, const char *, int, const char *, int, int);
74
75#define	EXTEND	1		/* alias for TRUE */
76#define	DONT_EXTEND	0		/* alias for FALSE */
77
78static const char *svcclosetime = "120";
79static const char *CPP = NULL;
80static const char CPPFLAGS[] = "-C";
81static char pathbuf[MAXPATHLEN + 1];
82static const char *allv[] = {
83	"rpcgen", "-s", "udp", "-s", "tcp",
84};
85static int allc = nitems(allv);
86static const char *allnv[] = {
87	"rpcgen", "-s", "netpath",
88};
89static int allnc = nitems(allnv);
90
91/*
92 * machinations for handling expanding argument list
93 */
94static void addarg(const char *);	/* add another argument to the list */
95static void insarg(int, const char *);	/* insert arg at specified location */
96static void checkfiles(const char *, const char *);
97					/* check if out file already exists */
98
99static char **arglist;
100static int argcount = 0;
101static int argmax = 0;
102
103int nonfatalerrors;	/* errors */
104int inetdflag = 0;	/* Support for inetd is disabled by default, use -I */
105int pmflag = 0;		/* Support for port monitors is disabled by default */
106int tirpc_socket = 1;	/* TI-RPC on socket, no TLI library */
107int logflag;		/* Use syslog instead of fprintf for errors */
108int tblflag;		/* Support for dispatch table file */
109int mtflag = 0;		/* Support for MT */
110
111#define INLINE 0
112/* length at which to start doing an inline */
113
114int inline_size = INLINE;
115/*
116 * Length at which to start doing an inline. INLINE = default
117 * if 0, no xdr_inline code
118 */
119
120int indefinitewait;	/* If started by port monitors, hang till it wants */
121int exitnow;		/* If started by port monitors, exit after the call */
122int timerflag;		/* TRUE if !indefinite && !exitnow */
123int newstyle;		/* newstyle of passing arguments (by value) */
124int CCflag = 0;		/* C++ files */
125static int allfiles;   /* generate all files */
126int tirpcflag = 1;    /* generating code for tirpc, by default */
127xdrfunc *xdrfunc_head = NULL; /* xdr function list */
128xdrfunc *xdrfunc_tail = NULL; /* xdr function list */
129pid_t childpid;
130
131
132int
133main(int argc, const char *argv[])
134{
135	struct commandline cmd;
136
137	(void) memset((char *)&cmd, 0, sizeof (struct commandline));
138	if (!parseargs(argc, argv, &cmd))
139		usage();
140	/*
141	 * Only the client and server side stubs are likely to be customized,
142	 *  so in that case only, check if the outfile exists, and if so,
143	 *  print an error message and exit.
144	 */
145	if (cmd.Ssflag || cmd.Scflag || cmd.makefileflag) {
146		checkfiles(cmd.infile, cmd.outfile);
147	}
148	else
149		checkfiles(cmd.infile, NULL);
150
151	if (cmd.cflag) {
152		c_output(cmd.infile, "-DRPC_XDR", DONT_EXTEND, cmd.outfile);
153	} else if (cmd.hflag) {
154		h_output(cmd.infile, "-DRPC_HDR", DONT_EXTEND, cmd.outfile,
155		    cmd.hflag);
156	} else if (cmd.lflag) {
157		l_output(cmd.infile, "-DRPC_CLNT", DONT_EXTEND, cmd.outfile);
158	} else if (cmd.sflag || cmd.mflag || (cmd.nflag)) {
159		s_output(argc, argv, cmd.infile, "-DRPC_SVC", DONT_EXTEND,
160			cmd.outfile, cmd.mflag, cmd.nflag);
161	} else if (cmd.tflag) {
162		t_output(cmd.infile, "-DRPC_TBL", DONT_EXTEND, cmd.outfile);
163	} else if  (cmd.Ssflag) {
164		svc_output(cmd.infile, "-DRPC_SERVER", DONT_EXTEND,
165			cmd.outfile);
166	} else if (cmd.Scflag) {
167		clnt_output(cmd.infile, "-DRPC_CLIENT", DONT_EXTEND,
168			    cmd.outfile);
169	} else if (cmd.makefileflag) {
170		mkfile_output(&cmd);
171	} else {
172		/* the rescans are required, since cpp may effect input */
173		c_output(cmd.infile, "-DRPC_XDR", EXTEND, "_xdr.c");
174		reinitialize();
175		h_output(cmd.infile, "-DRPC_HDR", EXTEND, ".h", cmd.hflag);
176		reinitialize();
177		l_output(cmd.infile, "-DRPC_CLNT", EXTEND, "_clnt.c");
178		reinitialize();
179		if (inetdflag || !tirpcflag)
180			s_output(allc, allv, cmd.infile, "-DRPC_SVC", EXTEND,
181			"_svc.c", cmd.mflag, cmd.nflag);
182		else
183			s_output(allnc, allnv, cmd.infile, "-DRPC_SVC",
184				EXTEND, "_svc.c", cmd.mflag, cmd.nflag);
185		if (tblflag) {
186			reinitialize();
187			t_output(cmd.infile, "-DRPC_TBL", EXTEND, "_tbl.i");
188		}
189
190		if (allfiles) {
191			reinitialize();
192			svc_output(cmd.infile, "-DRPC_SERVER", EXTEND,
193				"_server.c");
194			reinitialize();
195			clnt_output(cmd.infile, "-DRPC_CLIENT", EXTEND,
196				"_client.c");
197
198		}
199		if (allfiles || (cmd.makefileflag == 1)){
200			reinitialize();
201			mkfile_output(&cmd);
202		}
203
204	}
205	exit(nonfatalerrors);
206	/* NOTREACHED */
207}
208
209
210/*
211 * add extension to filename
212 */
213static char *
214extendfile(const char *path, const char *ext)
215{
216	char *res;
217	const char *p;
218	const char *file;
219
220	if ((file = strrchr(path, '/')) == NULL)
221		file = path;
222	else
223		file++;
224	res = xmalloc(strlen(file) + strlen(ext) + 1);
225	p = strrchr(file, '.');
226	if (p == NULL) {
227		p = file + strlen(file);
228	}
229	(void) strcpy(res, file);
230	(void) strcpy(res + (p - file), ext);
231	return (res);
232}
233
234/*
235 * Open output file with given extension
236 */
237static void
238open_output(const char *infile, const char *outfile)
239{
240
241	if (outfile == NULL) {
242		fout = stdout;
243		return;
244	}
245
246	if (infile != NULL && streq(outfile, infile)) {
247		warnx("%s already exists. No output generated", infile);
248		crash();
249	}
250	fout = fopen(outfile, "w");
251	if (fout == NULL) {
252		warn("unable to open %s", outfile);
253		crash();
254	}
255	record_open(outfile);
256
257	return;
258}
259
260static void
261add_warning(void)
262{
263	f_print(fout, "/*\n");
264	f_print(fout, " * Please do not edit this file.\n");
265	f_print(fout, " * It was generated using rpcgen.\n");
266	f_print(fout, " */\n\n");
267}
268
269/* prepend C-preprocessor and flags before arguments */
270static void
271prepend_cpp(void)
272{
273	int idx = 1;
274	const char *var;
275	char *dupvar, *s, *t;
276
277	if (CPP != NULL)
278		insarg(0, CPP);
279	else if ((var = getenv("RPCGEN_CPP")) == NULL)
280		insarg(0, "/usr/bin/cpp");
281	else {
282		/* Parse command line in a rudimentary way */
283		dupvar = xstrdup(var);
284		for (s = dupvar, idx = 0; (t = strsep(&s, " \t")) != NULL; ) {
285			if (t[0])
286				insarg(idx++, t);
287		}
288		free(dupvar);
289	}
290
291	insarg(idx, CPPFLAGS);
292}
293
294/*
295 * Open input file with given define for C-preprocessor
296 */
297static void
298open_input(const char *infile, const char *define)
299{
300	int pd[2];
301
302	infilename = (infile == NULL) ? "<stdin>" : infile;
303	(void) pipe(pd);
304	switch (childpid = fork()) {
305	case 0:
306		prepend_cpp();
307		addarg(define);
308		if (infile)
309			addarg(infile);
310		addarg((char *)NULL);
311		(void) close(1);
312		(void) dup2(pd[1], 1);
313		(void) close(pd[0]);
314		execvp(arglist[0], arglist);
315		err(1, "execvp %s", arglist[0]);
316	case -1:
317		err(1, "fork");
318	}
319	(void) close(pd[1]);
320	fin = fdopen(pd[0], "r");
321	if (fin == NULL) {
322		warn("%s", infilename);
323		crash();
324	}
325}
326
327/* valid tirpc nettypes */
328static const char *valid_ti_nettypes[] =
329{
330	"netpath",
331	"visible",
332	"circuit_v",
333	"datagram_v",
334	"circuit_n",
335	"datagram_n",
336	"udp",
337	"tcp",
338	"raw",
339	NULL
340	};
341
342/* valid inetd nettypes */
343static const char *valid_i_nettypes[] =
344{
345	"udp",
346	"tcp",
347	NULL
348	};
349
350static int
351check_nettype(const char *name, const char *list_to_check[])
352{
353	int i;
354	for (i = 0; list_to_check[i] != NULL; i++) {
355		if (strcmp(name, list_to_check[i]) == 0) {
356			return (1);
357		}
358	}
359	warnx("illegal nettype :\'%s\'", name);
360	return (0);
361}
362
363static const char *
364file_name(const char *file, const char *ext)
365{
366	char *temp;
367	temp = extendfile(file, ext);
368
369	if (access(temp, F_OK) != -1)
370		return (temp);
371	else
372		return (" ");
373
374}
375
376
377static void
378c_output(const char *infile, const char *define, int extend, const char *outfile)
379{
380	definition *def;
381	char *include;
382	const char *outfilename;
383	long tell;
384
385	c_initialize();
386	open_input(infile, define);
387	outfilename = extend ? extendfile(infile, outfile) : outfile;
388	open_output(infile, outfilename);
389	add_warning();
390	if (infile && (include = extendfile(infile, ".h"))) {
391		f_print(fout, "#include \"%s\"\n", include);
392		free(include);
393		/* .h file already contains rpc/rpc.h */
394	} else
395		f_print(fout, "#include <rpc/rpc.h>\n");
396	tell = ftell(fout);
397	while ( (def = get_definition()) ) {
398		emit(def);
399	}
400	if (extend && tell == ftell(fout)) {
401		(void) unlink(outfilename);
402	}
403}
404
405
406void
407c_initialize(void)
408{
409
410	/* add all the starting basic types */
411	add_type(1, "int");
412	add_type(1, "long");
413	add_type(1, "short");
414	add_type(1, "bool");
415	add_type(1, "u_int");
416	add_type(1, "u_long");
417	add_type(1, "u_short");
418
419}
420
421static const char rpcgen_table_dcl[] = "struct rpcgen_table {\n\
422	char	*(*proc)(); \n\
423	xdrproc_t	xdr_arg; \n\
424	unsigned	len_arg; \n\
425	xdrproc_t	xdr_res; \n\
426	unsigned	len_res; \n\
427}; \n";
428
429
430char *
431generate_guard(const char *pathname)
432{
433	const char *filename;
434	char *guard, *tmp, *stopat;
435
436	filename = strrchr(pathname, '/');  /* find last component */
437	filename = ((filename == NULL) ? pathname : filename+1);
438	guard = xstrdup(filename);
439	stopat = strrchr(guard, '.');
440
441	/*
442	 * Convert to a valid C macro name and make it upper case.
443	 * Map macro unfriendly characterss to '_'.
444	 */
445	for (tmp = guard; *tmp != '\000'; ++tmp) {
446		if (islower(*tmp))
447			*tmp = toupper(*tmp);
448		else if (isupper(*tmp) || *tmp == '_')
449			/* OK for C */;
450		else if (tmp == guard)
451			*tmp = '_';
452		else if (isdigit(*tmp))
453			/* OK for all but first character */;
454		else if (tmp == stopat) {
455			*tmp = '\0';
456			break;
457		} else
458			*tmp = '_';
459	}
460	/*
461	 * Can't have a '_' in front, because it'll end up being "__".
462	 * "__" macros shoudln't be used. So, remove all of the
463	 * '_' characters from the front.
464	 */
465	if (*guard == '_') {
466		for (tmp = guard; *tmp == '_'; ++tmp)
467			;
468		strcpy(guard, tmp);
469	}
470	tmp = guard;
471	guard = extendfile(guard, "_H_RPCGEN");
472	free(tmp);
473	return (guard);
474}
475
476/*
477 * Compile into an XDR header file
478 */
479
480
481static void
482h_output(const char *infile, const char *define, int extend, const char *outfile, int headeronly)
483{
484	definition *def;
485	const char *outfilename;
486	long tell;
487	const char *guard;
488	list *l;
489	xdrfunc *xdrfuncp;
490	void *tmp = NULL;
491
492	open_input(infile, define);
493	outfilename =  extend ? extendfile(infile, outfile) : outfile;
494	open_output(infile, outfilename);
495	add_warning();
496	if (outfilename || infile){
497		guard = tmp = generate_guard(outfilename ? outfilename: infile);
498	} else
499		guard = "STDIN_";
500
501	f_print(fout, "#ifndef _%s\n#define	_%s\n\n", guard,
502		guard);
503
504	f_print(fout, "#include <rpc/rpc.h>\n");
505
506	if (mtflag)
507		f_print(fout, "#include <pthread.h>\n");
508
509	/* put the C++ support */
510	if (!CCflag) {
511		f_print(fout, "\n#ifdef __cplusplus\n");
512		f_print(fout, "extern \"C\" {\n");
513		f_print(fout, "#endif\n\n");
514	}
515
516	/* put in a typedef for quadprecision. Only with Cflag */
517
518	tell = ftell(fout);
519
520	/* print data definitions */
521	while ( (def = get_definition()) ) {
522		print_datadef(def, headeronly);
523	}
524
525	/*
526	 * print function declarations.
527	 *  Do this after data definitions because they might be used as
528	 *  arguments for functions
529	 */
530	for (l = defined; l != NULL; l = l->next) {
531		print_funcdef(l->val, headeronly);
532	}
533	/* Now  print all xdr func declarations */
534	if (xdrfunc_head != NULL){
535
536		f_print(fout,
537			"\n/* the xdr functions */\n");
538
539		if (CCflag){
540			f_print(fout, "\n#ifdef __cplusplus\n");
541			f_print(fout, "extern \"C\" {\n");
542			f_print(fout, "#endif\n");
543		}
544
545		xdrfuncp = xdrfunc_head;
546		while (xdrfuncp != NULL){
547			print_xdr_func_def(xdrfuncp->name, xdrfuncp->pointerp);
548			xdrfuncp = xdrfuncp->next;
549		}
550	}
551
552	if (extend && tell == ftell(fout)) {
553		(void) unlink(outfilename);
554	} else if (tblflag) {
555		f_print(fout, rpcgen_table_dcl);
556	}
557
558	f_print(fout, "\n#ifdef __cplusplus\n");
559	f_print(fout, "}\n");
560	f_print(fout, "#endif\n");
561
562	f_print(fout, "\n#endif /* !_%s */\n", guard);
563	free(tmp);
564}
565
566/*
567 * Compile into an RPC service
568 */
569static void
570s_output(int argc, const char *argv[], const char *infile, const char *define,
571    int extend, const char *outfile, int nomain, int netflag)
572{
573	char *include;
574	definition *def;
575	int foundprogram = 0;
576	const char *outfilename;
577
578	open_input(infile, define);
579	outfilename = extend ? extendfile(infile, outfile) : outfile;
580	open_output(infile, outfilename);
581	add_warning();
582	if (infile && (include = extendfile(infile, ".h"))) {
583		f_print(fout, "#include \"%s\"\n", include);
584		free(include);
585	} else
586		f_print(fout, "#include <rpc/rpc.h>\n");
587
588	f_print(fout, "#include <stdio.h>\n");
589	f_print(fout, "#include <stdlib.h> /* getenv, exit */\n");
590	f_print (fout, "#include <rpc/pmap_clnt.h> /* for pmap_unset */\n");
591	f_print (fout, "#include <string.h> /* strcmp */\n");
592	if (tirpcflag)
593		f_print(fout, "#include <rpc/rpc_com.h>\n");
594	if (strcmp(svcclosetime, "-1") == 0)
595		indefinitewait = 1;
596	else if (strcmp(svcclosetime, "0") == 0)
597		exitnow = 1;
598	else if (inetdflag || pmflag) {
599		f_print(fout, "#include <signal.h>\n");
600		timerflag = 1;
601	}
602
603	if (!tirpcflag && inetdflag)
604		f_print(fout, "#include <sys/ttycom.h> /* TIOCNOTTY */\n");
605	if (inetdflag || pmflag) {
606		f_print(fout, "#ifdef __cplusplus\n");
607		f_print(fout,
608			"#include <sys/sysent.h> /* getdtablesize, open */\n");
609		f_print(fout, "#endif /* __cplusplus */\n");
610	}
611	if (tirpcflag) {
612		f_print(fout, "#include <fcntl.h> /* open */\n");
613		f_print(fout, "#include <unistd.h> /* fork / setsid */\n");
614		f_print(fout, "#include <sys/types.h>\n");
615	}
616
617	f_print(fout, "#include <string.h>\n");
618	if (inetdflag || !tirpcflag) {
619		f_print(fout, "#include <sys/socket.h>\n");
620		f_print(fout, "#include <netinet/in.h>\n");
621	}
622
623	if ((netflag || pmflag) && tirpcflag && !nomain) {
624		f_print(fout, "#include <netconfig.h>\n");
625	}
626	if (tirpcflag)
627		f_print(fout, "#include <sys/resource.h> /* rlimit */\n");
628	if (logflag || inetdflag || pmflag || tirpcflag)
629		f_print(fout, "#include <syslog.h>\n");
630
631	f_print(fout, "\n#ifdef DEBUG\n#define	RPC_SVC_FG\n#endif\n");
632	if (timerflag)
633		f_print(fout, "\n#define	_RPCSVC_CLOSEDOWN %s\n",
634			svcclosetime);
635	while ( (def = get_definition()) ) {
636		foundprogram |= (def->def_kind == DEF_PROGRAM);
637	}
638	if (extend && !foundprogram) {
639		(void) unlink(outfilename);
640		return;
641	}
642	write_most(infile, netflag, nomain);
643	if (!nomain) {
644		if (!do_registers(argc, argv)) {
645			if (outfilename)
646				(void) unlink(outfilename);
647			usage();
648		}
649		write_rest();
650	}
651}
652
653/*
654 * generate client side stubs
655 */
656static void
657l_output(const char *infile, const char *define, int extend, const char *outfile)
658{
659	char *include;
660	definition *def;
661	int foundprogram = 0;
662	const char *outfilename;
663
664	open_input(infile, define);
665	outfilename = extend ? extendfile(infile, outfile) : outfile;
666	open_output(infile, outfilename);
667	add_warning();
668	f_print (fout, "#include <string.h> /* for memset */\n");
669	if (infile && (include = extendfile(infile, ".h"))) {
670		f_print(fout, "#include \"%s\"\n", include);
671		free(include);
672	} else
673		f_print(fout, "#include <rpc/rpc.h>\n");
674	while ( (def = get_definition()) ) {
675		foundprogram |= (def->def_kind == DEF_PROGRAM);
676	}
677	if (extend && !foundprogram) {
678		(void) unlink(outfilename);
679		return;
680	}
681	write_stubs();
682}
683
684/*
685 * generate the dispatch table
686 */
687static void
688t_output(const char *infile, const char *define, int extend, const char *outfile)
689{
690	definition *def;
691	int foundprogram = 0;
692	const char *outfilename;
693
694	open_input(infile, define);
695	outfilename = extend ? extendfile(infile, outfile) : outfile;
696	open_output(infile, outfilename);
697	add_warning();
698	while ( (def = get_definition()) ) {
699		foundprogram |= (def->def_kind == DEF_PROGRAM);
700	}
701	if (extend && !foundprogram) {
702		(void) unlink(outfilename);
703		return;
704	}
705	write_tables();
706}
707
708/* sample routine for the server template */
709static void
710svc_output(const char *infile, const char *define, int extend, const char *outfile)
711{
712	definition *def;
713	char *include;
714	const char *outfilename;
715	long tell;
716	open_input(infile, define);
717	outfilename = extend ? extendfile(infile, outfile) : outfile;
718	checkfiles(infile, outfilename);
719	/*
720	 * Check if outfile already exists.
721	 * if so, print an error message and exit
722	 */
723	open_output(infile, outfilename);
724	add_sample_msg();
725
726	if (infile && (include = extendfile(infile, ".h"))) {
727		f_print(fout, "#include \"%s\"\n", include);
728		free(include);
729	} else
730		f_print(fout, "#include <rpc/rpc.h>\n");
731
732	tell = ftell(fout);
733	while ( (def = get_definition()) ) {
734		write_sample_svc(def);
735	}
736	if (extend && tell == ftell(fout)) {
737		(void) unlink(outfilename);
738	}
739}
740
741/* sample main routine for client */
742static void
743clnt_output(const char *infile, const char *define, int extend, const char *outfile)
744{
745	definition *def;
746	char *include;
747	const char *outfilename;
748	long tell;
749	int has_program = 0;
750
751	open_input(infile, define);
752	outfilename = extend ? extendfile(infile, outfile) : outfile;
753	checkfiles(infile, outfilename);
754	/*
755	 * Check if outfile already exists.
756	 * if so, print an error message and exit
757	 */
758
759	open_output(infile, outfilename);
760	add_sample_msg();
761	if (infile && (include = extendfile(infile, ".h"))) {
762		f_print(fout, "#include \"%s\"\n", include);
763		free(include);
764	} else
765		f_print(fout, "#include <rpc/rpc.h>\n");
766	f_print(fout, "#include <stdio.h>\n");
767	f_print(fout, "#include <stdlib.h>\n");
768	tell = ftell(fout);
769	while ( (def = get_definition()) ) {
770		has_program += write_sample_clnt(def);
771	}
772
773	if (has_program)
774		write_sample_clnt_main();
775
776	if (extend && tell == ftell(fout)) {
777		(void) unlink(outfilename);
778	}
779}
780
781
782static void mkfile_output(struct commandline *cmd)
783{
784	const char *mkfilename, *clientname, *clntname, *xdrname, *hdrname;
785	const char *servername, *svcname, *servprogname, *clntprogname;
786	char *temp, *mkftemp;
787
788	svcname = file_name(cmd->infile, "_svc.c");
789	clntname = file_name(cmd->infile, "_clnt.c");
790	xdrname = file_name(cmd->infile, "_xdr.c");
791	hdrname = file_name(cmd->infile, ".h");
792
793
794	if (allfiles){
795		servername = extendfile(cmd->infile, "_server.c");
796		clientname = extendfile(cmd->infile, "_client.c");
797	}else{
798		servername = " ";
799		clientname = " ";
800	}
801	servprogname = extendfile(cmd->infile, "_server");
802	clntprogname = extendfile(cmd->infile, "_client");
803
804	if (allfiles){
805		mkftemp = xmalloc(strlen("makefile.") +
806		                     strlen(cmd->infile) + 1);
807		temp = strrchr(cmd->infile, '.');
808		strcpy(mkftemp, "makefile.");
809		(void) strncat(mkftemp, cmd->infile,
810			(temp - cmd->infile));
811		mkfilename = mkftemp;
812	} else
813		mkfilename = cmd->outfile;
814
815
816	checkfiles(NULL, mkfilename);
817	open_output(NULL, mkfilename);
818
819	f_print(fout, "\n# This is a template makefile generated\
820		by rpcgen \n");
821
822	f_print(fout, "\n# Parameters \n\n");
823
824	f_print(fout, "CLIENT = %s\nSERVER = %s\n\n",
825		clntprogname, servprogname);
826	f_print(fout, "SOURCES_CLNT.c = \nSOURCES_CLNT.h = \n");
827	f_print(fout, "SOURCES_SVC.c = \nSOURCES_SVC.h = \n");
828	f_print(fout, "SOURCES.x = %s\n\n", cmd->infile);
829	f_print(fout, "TARGETS_SVC.c = %s %s %s \n",
830		svcname, servername, xdrname);
831	f_print(fout, "TARGETS_CLNT.c = %s %s %s \n",
832		clntname, clientname, xdrname);
833	f_print(fout, "TARGETS = %s %s %s %s %s %s\n\n",
834		hdrname, xdrname, clntname,
835		svcname, clientname, servername);
836
837	f_print(fout, "OBJECTS_CLNT = $(SOURCES_CLNT.c:%%.c=%%.o) \
838$(TARGETS_CLNT.c:%%.c=%%.o) ");
839
840	f_print(fout, "\nOBJECTS_SVC = $(SOURCES_SVC.c:%%.c=%%.o) \
841$(TARGETS_SVC.c:%%.c=%%.o) ");
842
843
844	f_print(fout, "\n# Compiler flags \n");
845	if (mtflag)
846		f_print(fout, "\nCFLAGS += -D_REENTRANT -D_THEAD_SAFE \nLDLIBS += -pthread\n");
847
848	f_print(fout, "RPCGENFLAGS = \n");
849
850	f_print(fout, "\n# Targets \n\n");
851
852	f_print(fout, "all : $(CLIENT) $(SERVER)\n\n");
853	f_print(fout, "$(TARGETS) : $(SOURCES.x) \n");
854	f_print(fout, "\trpcgen $(RPCGENFLAGS) $(SOURCES.x)\n\n");
855	if (allfiles) {
856		f_print(fout, "\trpcgen -Sc $(RPCGENFLAGS) $(SOURCES.x) -o %s\n\n", clientname);
857		f_print(fout, "\trpcgen -Ss $(RPCGENFLAGS) $(SOURCES.x) -o %s\n\n", servername);
858	}
859	f_print(fout, "$(OBJECTS_CLNT) : $(SOURCES_CLNT.c) $(SOURCES_CLNT.h) \
860$(TARGETS_CLNT.c) \n\n");
861
862	f_print(fout, "$(OBJECTS_SVC) : $(SOURCES_SVC.c) $(SOURCES_SVC.h) \
863$(TARGETS_SVC.c) \n\n");
864	f_print(fout, "$(CLIENT) : $(OBJECTS_CLNT) \n");
865	f_print(fout, "\t$(CC) -o $(CLIENT) $(OBJECTS_CLNT) \
866$(LDLIBS) \n\n");
867	f_print(fout, "$(SERVER) : $(OBJECTS_SVC) \n");
868	f_print(fout, "\t$(CC) -o $(SERVER) $(OBJECTS_SVC) $(LDLIBS)\n\n");
869	f_print(fout, "clean:\n\t rm -f core $(TARGETS) $(OBJECTS_CLNT) \
870$(OBJECTS_SVC) $(CLIENT) $(SERVER)\n\n");
871}
872
873
874
875/*
876 * Perform registrations for service output
877 * Return 0 if failed; 1 otherwise.
878 */
879static int
880do_registers(int argc, const char *argv[])
881{
882	int i;
883
884	if (inetdflag || !tirpcflag) {
885		for (i = 1; i < argc; i++) {
886			if (streq(argv[i], "-s")) {
887				if (!check_nettype(argv[i + 1],
888						    valid_i_nettypes))
889					return (0);
890				write_inetd_register(argv[i + 1]);
891				i++;
892			}
893		}
894	} else {
895		for (i = 1; i < argc; i++)
896			if (streq(argv[i], "-s")) {
897				if (!check_nettype(argv[i + 1],
898						    valid_ti_nettypes))
899					return (0);
900				write_nettype_register(argv[i + 1]);
901				i++;
902			} else if (streq(argv[i], "-n")) {
903				write_netid_register(argv[i + 1]);
904				i++;
905			}
906	}
907	return (1);
908}
909
910/*
911 * Extend the argument list
912 */
913static void
914moreargs(void)
915{
916	char **newarglist;
917
918	argmax = argmax == 0 ? 32 : argmax << 1;
919	if (argmax > INT_MAX / 4) {
920		warnx("refusing to allocate too many arguments");
921		crash();
922	}
923	newarglist = realloc(arglist, argmax * sizeof(*arglist));
924	if (newarglist == NULL) {
925		warnx("unable to allocate arglist");
926		crash();
927	}
928	free(arglist);
929	arglist = newarglist;
930}
931
932/*
933 * Add another argument to the arg list
934 */
935static void
936addarg(const char *cp)
937{
938	if (argcount >= argmax)
939		moreargs();
940
941	if (cp != NULL)
942		arglist[argcount++] = xstrdup(cp);
943	else
944		arglist[argcount++] = NULL;
945}
946
947/*
948 * Insert an argument at the specified location
949 */
950static void
951insarg(int place, const char *cp)
952{
953	int i;
954
955	if (argcount >= argmax)
956		moreargs();
957
958	/* Move up existing arguments */
959	for (i = argcount - 1; i >= place; i--)
960		arglist[i + 1] = arglist[i];
961
962	arglist[place] = xstrdup(cp);
963	argcount++;
964}
965
966/*
967 * if input file is stdin and an output file is specified then complain
968 * if the file already exists. Otherwise the file may get overwritten
969 * If input file does not exist, exit with an error
970 */
971
972static void
973checkfiles(const char *infile, const char *outfile)
974{
975
976	struct stat buf;
977
978	if (infile)		/* infile ! = NULL */
979		if (stat(infile, &buf) < 0)
980		{
981			warn("%s", infile);
982			crash();
983		}
984	if (outfile) {
985		if (stat(outfile, &buf) < 0)
986			return;	/* file does not exist */
987		else {
988			warnx("file '%s' already exists and may be overwritten", outfile);
989			crash();
990		}
991	}
992}
993
994/*
995 * Parse command line arguments
996 */
997static int
998parseargs(int argc, const char *argv[], struct commandline *cmd)
999{
1000	int i;
1001	int j;
1002	char c, ch;
1003	char flag[(1 << 8 * sizeof (char))];
1004	int nflags;
1005
1006	cmd->infile = cmd->outfile = NULL;
1007	if (argc < 2) {
1008		return (0);
1009	}
1010	allfiles = 0;
1011	flag['c'] = 0;
1012	flag['h'] = 0;
1013	flag['l'] = 0;
1014	flag['m'] = 0;
1015	flag['o'] = 0;
1016	flag['s'] = 0;
1017	flag['n'] = 0;
1018	flag['t'] = 0;
1019	flag['S'] = 0;
1020	flag['C'] = 0;
1021	flag['M'] = 0;
1022
1023	for (i = 1; i < argc; i++) {
1024		if (argv[i][0] != '-') {
1025			if (cmd->infile) {
1026				warnx("cannot specify more than one input file");
1027				return (0);
1028			}
1029			cmd->infile = argv[i];
1030		} else {
1031			for (j = 1; argv[i][j] != 0; j++) {
1032				c = argv[i][j];
1033				switch (c) {
1034				case 'a':
1035					allfiles = 1;
1036					break;
1037				case 'c':
1038				case 'h':
1039				case 'l':
1040				case 'm':
1041				case 't':
1042					if (flag[(int)c]) {
1043						return (0);
1044					}
1045					flag[(int)c] = 1;
1046					break;
1047				case 'S':
1048					/*
1049					 * sample flag: Ss or Sc.
1050					 *  Ss means set flag['S'];
1051					 *  Sc means set flag['C'];
1052					 *  Sm means set flag['M'];
1053					 */
1054					ch = argv[i][++j]; /* get next char */
1055					if (ch == 's')
1056						ch = 'S';
1057					else if (ch == 'c')
1058						ch = 'C';
1059					else if (ch == 'm')
1060						ch = 'M';
1061					else
1062						return (0);
1063
1064					if (flag[(int)ch]) {
1065						return (0);
1066					}
1067					flag[(int)ch] = 1;
1068					break;
1069				case 'C': /* ANSI C syntax */
1070					ch = argv[i][j+1]; /* get next char */
1071
1072					if (ch != 'C')
1073						break;
1074					CCflag = 1;
1075					break;
1076				case 'b':
1077					/*
1078					 *  Turn TIRPC flag off for
1079					 *  generating backward compatible
1080					 *  code
1081					 */
1082					tirpcflag = 0;
1083					break;
1084
1085				case 'I':
1086					inetdflag = 1;
1087					break;
1088				case 'N':
1089					newstyle = 1;
1090					break;
1091				case 'L':
1092					logflag = 1;
1093					break;
1094				case 'P':
1095					pmflag = 1;
1096					break;
1097				case 'K':
1098					if (++i == argc) {
1099						return (0);
1100					}
1101					svcclosetime = argv[i];
1102					goto nextarg;
1103				case 'T':
1104					tblflag = 1;
1105					break;
1106				case 'M':
1107					mtflag = 1;
1108					break;
1109				case 'i' :
1110					if (++i == argc) {
1111						return (0);
1112					}
1113					inline_size = atoi(argv[i]);
1114					goto nextarg;
1115				case 'n':
1116				case 'o':
1117				case 's':
1118					if (argv[i][j - 1] != '-' ||
1119					    argv[i][j + 1] != 0) {
1120						return (0);
1121					}
1122					flag[(int)c] = 1;
1123					if (++i == argc) {
1124						return (0);
1125					}
1126					if (c == 'o') {
1127						if (cmd->outfile) {
1128							return (0);
1129						}
1130						cmd->outfile = argv[i];
1131					}
1132					goto nextarg;
1133				case 'D':
1134					if (argv[i][j - 1] != '-') {
1135						return (0);
1136					}
1137					(void) addarg(argv[i]);
1138					goto nextarg;
1139				case 'Y':
1140					if (++i == argc) {
1141						return (0);
1142					}
1143					if (strlcpy(pathbuf, argv[i],
1144					    sizeof(pathbuf)) >= sizeof(pathbuf)
1145					    || strlcat(pathbuf, "/cpp",
1146					    sizeof(pathbuf)) >=
1147					    sizeof(pathbuf)) {
1148						warnx("argument too long");
1149						return (0);
1150					}
1151					CPP = pathbuf;
1152					goto nextarg;
1153
1154
1155
1156				default:
1157					return (0);
1158				}
1159			}
1160		nextarg:
1161			;
1162		}
1163	}
1164
1165	cmd->cflag = flag['c'];
1166	cmd->hflag = flag['h'];
1167	cmd->lflag = flag['l'];
1168	cmd->mflag = flag['m'];
1169	cmd->nflag = flag['n'];
1170	cmd->sflag = flag['s'];
1171	cmd->tflag = flag['t'];
1172	cmd->Ssflag = flag['S'];
1173	cmd->Scflag = flag['C'];
1174	cmd->makefileflag = flag['M'];
1175
1176	if (tirpcflag) {
1177		if (inetdflag)
1178			pmflag = 0;
1179		if ((inetdflag && cmd->nflag)) {
1180			/* netid not allowed with inetdflag */
1181			warnx("cannot use netid flag with inetd flag");
1182			return (0);
1183		}
1184	} else {		/* 4.1 mode */
1185		pmflag = 0;	/* set pmflag only in tirpcmode */
1186		if (cmd->nflag) { /* netid needs TIRPC */
1187			warnx("cannot use netid flag without TIRPC");
1188			return (0);
1189		}
1190	}
1191
1192	if (newstyle && (tblflag || cmd->tflag)) {
1193		warnx("cannot use table flags with newstyle");
1194		return (0);
1195	}
1196
1197	/* check no conflicts with file generation flags */
1198	nflags = cmd->cflag + cmd->hflag + cmd->lflag + cmd->mflag +
1199		cmd->sflag + cmd->nflag + cmd->tflag + cmd->Ssflag +
1200			cmd->Scflag + cmd->makefileflag;
1201
1202	if (nflags == 0) {
1203		if (cmd->outfile != NULL || cmd->infile == NULL) {
1204			return (0);
1205		}
1206	} else if (cmd->infile == NULL &&
1207	    (cmd->Ssflag || cmd->Scflag || cmd->makefileflag)) {
1208		warnx("\"infile\" is required for template generation flags");
1209		return (0);
1210	} if (nflags > 1) {
1211		warnx("cannot have more than one file generation flag");
1212		return (0);
1213	}
1214	return (1);
1215}
1216
1217static void
1218usage(void)
1219{
1220	f_print(stderr, "%s\n%s\n%s\n%s\n%s\n",
1221		"usage: rpcgen infile",
1222		"       rpcgen [-abCLNTM] [-Dname[=value]] [-i size]\
1223[-I -P [-K seconds]] [-Y path] infile",
1224		"       rpcgen [-c | -h | -l | -m | -t | -Sc | -Ss | -Sm]\
1225[-o outfile] [infile]",
1226		"       rpcgen [-s nettype]* [-o outfile] [infile]",
1227		"       rpcgen [-n netid]* [-o outfile] [infile]");
1228	options_usage();
1229	exit(1);
1230}
1231
1232static void
1233options_usage(void)
1234{
1235	f_print(stderr, "options:\n");
1236	f_print(stderr, "-a\t\tgenerate all files, including samples\n");
1237	f_print(stderr, "-b\t\tbackward compatibility mode (generates code \
1238for FreeBSD 4.X)\n");
1239	f_print(stderr, "-c\t\tgenerate XDR routines\n");
1240	f_print(stderr, "-C\t\tANSI C mode\n");
1241	f_print(stderr, "-Dname[=value]\tdefine a symbol (same as #define)\n");
1242	f_print(stderr, "-h\t\tgenerate header file\n");
1243	f_print(stderr, "-i size\t\tsize at which to start generating\
1244inline code\n");
1245	f_print(stderr, "-I\t\tgenerate code for inetd support in server\n");
1246	f_print(stderr, "-K seconds\tserver exits after K seconds of\
1247inactivity\n");
1248	f_print(stderr, "-l\t\tgenerate client side stubs\n");
1249	f_print(stderr, "-L\t\tserver errors will be printed to syslog\n");
1250	f_print(stderr, "-m\t\tgenerate server side stubs\n");
1251	f_print(stderr, "-M\t\tgenerate MT-safe code\n");
1252	f_print(stderr, "-n netid\tgenerate server code that supports\
1253named netid\n");
1254	f_print(stderr, "-N\t\tsupports multiple arguments and\
1255call-by-value\n");
1256	f_print(stderr, "-o outfile\tname of the output file\n");
1257	f_print(stderr, "-P\t\tgenerate code for port monitoring support in server\n");
1258	f_print(stderr, "-s nettype\tgenerate server code that supports named\
1259nettype\n");
1260	f_print(stderr, "-Sc\t\tgenerate sample client code that uses remote\
1261procedures\n");
1262	f_print(stderr, "-Ss\t\tgenerate sample server code that defines\
1263remote procedures\n");
1264	f_print(stderr, "-Sm \t\tgenerate makefile template \n");
1265
1266	f_print(stderr, "-t\t\tgenerate RPC dispatch table\n");
1267	f_print(stderr, "-T\t\tgenerate code to support RPC dispatch tables\n");
1268	f_print(stderr, "-Y path\t\tpath where cpp is found\n");
1269	exit(1);
1270}
1271