1/* ansi2knr.c */
2/* Convert ANSI C function definitions to K&R ("traditional C") syntax */
3
4/*
5ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY
6WARRANTY.  No author or distributor accepts responsibility to anyone for the
7consequences of using it or for whether it serves any particular purpose or
8works at all, unless he says so in writing.  Refer to the GNU General Public
9License (the "GPL") for full details.
10
11Everyone is granted permission to copy, modify and redistribute ansi2knr,
12but only under the conditions described in the GPL.  A copy of this license
13is supposed to have been given to you along with ansi2knr so you can know
14your rights and responsibilities.  It should be in a file named COPYLEFT.
15[In the IJG distribution, the GPL appears below, not in a separate file.]
16Among other things, the copyright notice and this notice must be preserved
17on all copies.
18
19We explicitly state here what we believe is already implied by the GPL: if
20the ansi2knr program is distributed as a separate set of sources and a
21separate executable file which are aggregated on a storage medium together
22with another program, this in itself does not bring the other program under
23the GPL, nor does the mere fact that such a program or the procedures for
24constructing it invoke the ansi2knr executable bring any other part of the
25program under the GPL.
26*/
27
28/*
29---------- Here is the GNU GPL file COPYLEFT, referred to above ----------
30----- These terms do NOT apply to the JPEG software itself; see README ------
31
32		    GHOSTSCRIPT GENERAL PUBLIC LICENSE
33		    (Clarified 11 Feb 1988)
34
35 Copyright (C) 1988 Richard M. Stallman
36 Everyone is permitted to copy and distribute verbatim copies of this
37 license, but changing it is not allowed.  You can also use this wording
38 to make the terms for other programs.
39
40  The license agreements of most software companies keep you at the
41mercy of those companies.  By contrast, our general public license is
42intended to give everyone the right to share Ghostscript.  To make sure
43that you get the rights we want you to have, we need to make
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45to surrender the rights.  Hence this license agreement.
46
47  Specifically, we want to make sure that you have the right to give
48away copies of Ghostscript, that you receive source code or else can get
49it if you want it, that you can change Ghostscript or use pieces of it
50in new free programs, and that you know you can do these things.
51
52  To make sure that everyone has such rights, we have to forbid you to
53deprive anyone else of these rights.  For example, if you distribute
54copies of Ghostscript, you must give the recipients all the rights that
55you have.  You must make sure that they, too, receive or can get the
56source code.  And you must tell them their rights.
57
58  Also, for our own protection, we must make certain that everyone finds
59out that there is no warranty for Ghostscript.  If Ghostscript is
60modified by someone else and passed on, we want its recipients to know
61that what they have is not what we distributed, so that any problems
62introduced by others will not reflect on our reputation.
63
64  Therefore we (Richard M. Stallman and the Free Software Foundation,
65Inc.) make the following terms which say what you must do to be allowed
66to distribute or change Ghostscript.
67
68
69			COPYING POLICIES
70
71  1. You may copy and distribute verbatim copies of Ghostscript source
72code as you receive it, in any medium, provided that you conspicuously
73and appropriately publish on each copy a valid copyright and license
74notice "Copyright (C) 1989 Aladdin Enterprises.  All rights reserved.
75Distributed by Free Software Foundation, Inc." (or with whatever year is
76appropriate); keep intact the notices on all files that refer to this
77License Agreement and to the absence of any warranty; and give any other
78recipients of the Ghostscript program a copy of this License Agreement
79along with the program.  You may charge a distribution fee for the
80physical act of transferring a copy.
81
82  2. You may modify your copy or copies of Ghostscript or any portion of
83it, and copy and distribute such modifications under the terms of
84Paragraph 1 above, provided that you also do the following:
85
86    a) cause the modified files to carry prominent notices stating
87    that you changed the files and the date of any change; and
88
89    b) cause the whole of any work that you distribute or publish,
90    that in whole or in part contains or is a derivative of Ghostscript
91    or any part thereof, to be licensed at no charge to all third
92    parties on terms identical to those contained in this License
93    Agreement (except that you may choose to grant more extensive
94    warranty protection to some or all third parties, at your option).
95
96    c) You may charge a distribution fee for the physical act of
97    transferring a copy, and you may at your option offer warranty
98    protection in exchange for a fee.
99
100Mere aggregation of another unrelated program with this program (or its
101derivative) on a volume of a storage or distribution medium does not bring
102the other program under the scope of these terms.
103
104  3. You may copy and distribute Ghostscript (or a portion or derivative
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107following:
108
109    a) accompany it with the complete corresponding machine-readable
110    source code, which must be distributed under the terms of
111    Paragraphs 1 and 2 above; or,
112
113    b) accompany it with a written offer, valid for at least three
114    years, to give any third party free (except for a nominal
115    shipping charge) a complete machine-readable copy of the
116    corresponding source code, to be distributed under the terms of
117    Paragraphs 1 and 2 above; or,
118
119    c) accompany it with the information you received as to where the
120    corresponding source code may be obtained.  (This alternative is
121    allowed only for noncommercial distribution and only if you
122    received the program in object code or executable form alone.)
123
124For an executable file, complete source code means all the source code for
125all modules it contains; but, as a special exception, it need not include
126source code for modules which are standard libraries that accompany the
127operating system on which the executable file runs.
128
129  4. You may not copy, sublicense, distribute or transfer Ghostscript
130except as expressly provided under this License Agreement.  Any attempt
131otherwise to copy, sublicense, distribute or transfer Ghostscript is
132void and your rights to use the program under this License agreement
133shall be automatically terminated.  However, parties who have received
134computer software programs from you with this License Agreement will not
135have their licenses terminated so long as such parties remain in full
136compliance.
137
138  5. If you wish to incorporate parts of Ghostscript into other free
139programs whose distribution conditions are different, write to the Free
140Software Foundation at 675 Mass Ave, Cambridge, MA 02139.  We have not
141yet worked out a simple rule that can be stated here, but we will often
142permit this.  We will be guided by the two goals of preserving the free
143status of all derivatives of our free software and of promoting the
144sharing and reuse of software.
145
146Your comments and suggestions about our licensing policies and our
147software are welcome!  Please contact the Free Software Foundation,
148Inc., 675 Mass Ave, Cambridge, MA 02139, or call (617) 876-3296.
149
150		       NO WARRANTY
151
152  BECAUSE GHOSTSCRIPT IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
153NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW.  EXCEPT
154WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC, RICHARD
155M. STALLMAN, ALADDIN ENTERPRISES, L. PETER DEUTSCH, AND/OR OTHER PARTIES
156PROVIDE GHOSTSCRIPT "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
157EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
158WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE
159ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF GHOSTSCRIPT IS WITH
160YOU.  SHOULD GHOSTSCRIPT PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
161NECESSARY SERVICING, REPAIR OR CORRECTION.
162
163  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
164STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., L. PETER DEUTSCH, ALADDIN
165ENTERPRISES, AND/OR ANY OTHER PARTY WHO MAY MODIFY AND REDISTRIBUTE
166GHOSTSCRIPT AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
167ANY LOST PROFITS, LOST MONIES, OR OTHER SPECIAL, INCIDENTAL OR
168CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
169(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
170INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A FAILURE OF THE
171PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) GHOSTSCRIPT, EVEN IF YOU
172HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM
173BY ANY OTHER PARTY.
174
175-------------------- End of file COPYLEFT ------------------------------
176*/
177
178/*
179 * Usage:
180	ansi2knr input_file [output_file]
181 * If no output_file is supplied, output goes to stdout.
182 * There are no error messages.
183 *
184 * ansi2knr recognizes function definitions by seeing a non-keyword
185 * identifier at the left margin, followed by a left parenthesis,
186 * with a right parenthesis as the last character on the line,
187 * and with a left brace as the first token on the following line
188 * (ignoring possible intervening comments).
189 * It will recognize a multi-line header provided that no intervening
190 * line ends with a left or right brace or a semicolon.
191 * These algorithms ignore whitespace and comments, except that
192 * the function name must be the first thing on the line.
193 * The following constructs will confuse it:
194 *	- Any other construct that starts at the left margin and
195 *	    follows the above syntax (such as a macro or function call).
196 *	- Some macros that tinker with the syntax of the function header.
197 */
198
199/*
200 * The original and principal author of ansi2knr is L. Peter Deutsch
201 * <ghost@aladdin.com>.  Other authors are noted in the change history
202 * that follows (in reverse chronological order):
203	lpd 96-01-21 added code to cope with not HAVE_CONFIG_H and with
204		compilers that don't understand void, as suggested by
205		Tom Lane
206	lpd 96-01-15 changed to require that the first non-comment token
207		on the line following a function header be a left brace,
208		to reduce sensitivity to macros, as suggested by Tom Lane
209		<tgl@sss.pgh.pa.us>
210	lpd 95-06-22 removed #ifndefs whose sole purpose was to define
211		undefined preprocessor symbols as 0; changed all #ifdefs
212		for configuration symbols to #ifs
213	lpd 95-04-05 changed copyright notice to make it clear that
214		including ansi2knr in a program does not bring the entire
215		program under the GPL
216	lpd 94-12-18 added conditionals for systems where ctype macros
217		don't handle 8-bit characters properly, suggested by
218		Francois Pinard <pinard@iro.umontreal.ca>;
219		removed --varargs switch (this is now the default)
220	lpd 94-10-10 removed CONFIG_BROKETS conditional
221	lpd 94-07-16 added some conditionals to help GNU `configure',
222		suggested by Francois Pinard <pinard@iro.umontreal.ca>;
223		properly erase prototype args in function parameters,
224		contributed by Jim Avera <jima@netcom.com>;
225		correct error in writeblanks (it shouldn't erase EOLs)
226	lpd 89-xx-xx original version
227 */
228
229/* Most of the conditionals here are to make ansi2knr work with */
230/* or without the GNU configure machinery. */
231
232#if HAVE_CONFIG_H
233# include <config.h>
234#endif
235
236#include <stdio.h>
237#include <ctype.h>
238
239#if HAVE_CONFIG_H
240
241/*
242   For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h).
243   This will define HAVE_CONFIG_H and so, activate the following lines.
244 */
245
246# if STDC_HEADERS || HAVE_STRING_H
247#  include <string.h>
248# else
249#  include <strings.h>
250# endif
251
252#else /* not HAVE_CONFIG_H */
253
254/* Otherwise do it the hard way */
255
256# ifdef BSD
257#  include <strings.h>
258# else
259#  ifdef VMS
260    extern int strlen(), strncmp();
261#  else
262#   include <string.h>
263#  endif
264# endif
265
266#endif /* not HAVE_CONFIG_H */
267
268#if STDC_HEADERS
269# include <stdlib.h>
270#else
271/*
272   malloc and free should be declared in stdlib.h,
273   but if you've got a K&R compiler, they probably aren't.
274 */
275# ifdef MSDOS
276#  include <malloc.h>
277# else
278#  ifdef VMS
279     extern char *malloc();
280     extern void free();
281#  else
282     extern char *malloc();
283     extern int free();
284#  endif
285# endif
286
287#endif
288
289/*
290 * The ctype macros don't always handle 8-bit characters correctly.
291 * Compensate for this here.
292 */
293#ifdef isascii
294#  undef HAVE_ISASCII		/* just in case */
295#  define HAVE_ISASCII 1
296#else
297#endif
298#if STDC_HEADERS || !HAVE_ISASCII
299#  define is_ascii(c) 1
300#else
301#  define is_ascii(c) isascii(c)
302#endif
303
304#define is_space(c) (is_ascii(c) && isspace(c))
305#define is_alpha(c) (is_ascii(c) && isalpha(c))
306#define is_alnum(c) (is_ascii(c) && isalnum(c))
307
308/* Scanning macros */
309#define isidchar(ch) (is_alnum(ch) || (ch) == '_')
310#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_')
311
312/* Forward references */
313char *skipspace();
314int writeblanks();
315int test1();
316int convert1();
317
318/* The main program */
319int
320main(argc, argv)
321    int argc;
322    char *argv[];
323{	FILE *in, *out;
324#define bufsize 5000			/* arbitrary size */
325	char *buf;
326	char *line;
327	char *more;
328	/*
329	 * In previous versions, ansi2knr recognized a --varargs switch.
330	 * If this switch was supplied, ansi2knr would attempt to convert
331	 * a ... argument to va_alist and va_dcl; if this switch was not
332	 * supplied, ansi2knr would simply drop any such arguments.
333	 * Now, ansi2knr always does this conversion, and we only
334	 * check for this switch for backward compatibility.
335	 */
336	int convert_varargs = 1;
337
338	if ( argc > 1 && argv[1][0] == '-' )
339	  {	if ( !strcmp(argv[1], "--varargs") )
340		  {	convert_varargs = 1;
341			argc--;
342			argv++;
343		  }
344		else
345		  {	fprintf(stderr, "Unrecognized switch: %s\n", argv[1]);
346			exit(1);
347		  }
348	  }
349	switch ( argc )
350	   {
351	default:
352		printf("Usage: ansi2knr input_file [output_file]\n");
353		exit(0);
354	case 2:
355		out = stdout;
356		break;
357	case 3:
358		out = fopen(argv[2], "w");
359		if ( out == NULL )
360		   {	fprintf(stderr, "Cannot open output file %s\n", argv[2]);
361			exit(1);
362		   }
363	   }
364	in = fopen(argv[1], "r");
365	if ( in == NULL )
366	   {	fprintf(stderr, "Cannot open input file %s\n", argv[1]);
367		exit(1);
368	   }
369	fprintf(out, "#line 1 \"%s\"\n", argv[1]);
370	buf = malloc(bufsize);
371	line = buf;
372	while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
373	   {
374test:		line += strlen(line);
375		switch ( test1(buf) )
376		   {
377		case 2:			/* a function header */
378			convert1(buf, out, 1, convert_varargs);
379			break;
380		case 1:			/* a function */
381			/* Check for a { at the start of the next line. */
382			more = ++line;
383f:			if ( line >= buf + (bufsize - 1) ) /* overflow check */
384			  goto wl;
385			if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL )
386			  goto wl;
387			switch ( *skipspace(more, 1) )
388			  {
389			  case '{':
390			    /* Definitely a function header. */
391			    convert1(buf, out, 0, convert_varargs);
392			    fputs(more, out);
393			    break;
394			  case 0:
395			    /* The next line was blank or a comment: */
396			    /* keep scanning for a non-comment. */
397			    line += strlen(line);
398			    goto f;
399			  default:
400			    /* buf isn't a function header, but */
401			    /* more might be. */
402			    fputs(buf, out);
403			    strcpy(buf, more);
404			    line = buf;
405			    goto test;
406			  }
407			break;
408		case -1:		/* maybe the start of a function */
409			if ( line != buf + (bufsize - 1) ) /* overflow check */
410			  continue;
411			/* falls through */
412		default:		/* not a function */
413wl:			fputs(buf, out);
414			break;
415		   }
416		line = buf;
417	   }
418	if ( line != buf )
419	  fputs(buf, out);
420	free(buf);
421	fclose(out);
422	fclose(in);
423	return 0;
424}
425
426/* Skip over space and comments, in either direction. */
427char *
428skipspace(p, dir)
429    register char *p;
430    register int dir;			/* 1 for forward, -1 for backward */
431{	for ( ; ; )
432	   {	while ( is_space(*p) )
433		  p += dir;
434		if ( !(*p == '/' && p[dir] == '*') )
435		  break;
436		p += dir;  p += dir;
437		while ( !(*p == '*' && p[dir] == '/') )
438		   {	if ( *p == 0 )
439			  return p;	/* multi-line comment?? */
440			p += dir;
441		   }
442		p += dir;  p += dir;
443	   }
444	return p;
445}
446
447/*
448 * Write blanks over part of a string.
449 * Don't overwrite end-of-line characters.
450 */
451int
452writeblanks(start, end)
453    char *start;
454    char *end;
455{	char *p;
456	for ( p = start; p < end; p++ )
457	  if ( *p != '\r' && *p != '\n' )
458	    *p = ' ';
459	return 0;
460}
461
462/*
463 * Test whether the string in buf is a function definition.
464 * The string may contain and/or end with a newline.
465 * Return as follows:
466 *	0 - definitely not a function definition;
467 *	1 - definitely a function definition;
468 *	2 - definitely a function prototype (NOT USED);
469 *	-1 - may be the beginning of a function definition,
470 *		append another line and look again.
471 * The reason we don't attempt to convert function prototypes is that
472 * Ghostscript's declaration-generating macros look too much like
473 * prototypes, and confuse the algorithms.
474 */
475int
476test1(buf)
477    char *buf;
478{	register char *p = buf;
479	char *bend;
480	char *endfn;
481	int contin;
482
483	if ( !isidfirstchar(*p) )
484	  return 0;		/* no name at left margin */
485	bend = skipspace(buf + strlen(buf) - 1, -1);
486	switch ( *bend )
487	   {
488	   case ';': contin = 0 /*2*/; break;
489	   case ')': contin = 1; break;
490	   case '{': return 0;		/* not a function */
491	   case '}': return 0;		/* not a function */
492	   default: contin = -1;
493	   }
494	while ( isidchar(*p) )
495	  p++;
496	endfn = p;
497	p = skipspace(p, 1);
498	if ( *p++ != '(' )
499	  return 0;		/* not a function */
500	p = skipspace(p, 1);
501	if ( *p == ')' )
502	  return 0;		/* no parameters */
503	/* Check that the apparent function name isn't a keyword. */
504	/* We only need to check for keywords that could be followed */
505	/* by a left parenthesis (which, unfortunately, is most of them). */
506	   {	static char *words[] =
507		   {	"asm", "auto", "case", "char", "const", "double",
508			"extern", "float", "for", "if", "int", "long",
509			"register", "return", "short", "signed", "sizeof",
510			"static", "switch", "typedef", "unsigned",
511			"void", "volatile", "while", 0
512		   };
513		char **key = words;
514		char *kp;
515		int len = endfn - buf;
516
517		while ( (kp = *key) != 0 )
518		   {	if ( strlen(kp) == len && !strncmp(kp, buf, len) )
519			  return 0;	/* name is a keyword */
520			key++;
521		   }
522	   }
523	return contin;
524}
525
526/* Convert a recognized function definition or header to K&R syntax. */
527int
528convert1(buf, out, header, convert_varargs)
529    char *buf;
530    FILE *out;
531    int header;			/* Boolean */
532    int convert_varargs;	/* Boolean */
533{	char *endfn;
534	register char *p;
535	char **breaks;
536	unsigned num_breaks = 2;	/* for testing */
537	char **btop;
538	char **bp;
539	char **ap;
540	char *vararg = 0;
541
542	/* Pre-ANSI implementations don't agree on whether strchr */
543	/* is called strchr or index, so we open-code it here. */
544	for ( endfn = buf; *(endfn++) != '('; )
545	  ;
546top:	p = endfn;
547	breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
548	if ( breaks == 0 )
549	   {	/* Couldn't allocate break table, give up */
550		fprintf(stderr, "Unable to allocate break table!\n");
551		fputs(buf, out);
552		return -1;
553	   }
554	btop = breaks + num_breaks * 2 - 2;
555	bp = breaks;
556	/* Parse the argument list */
557	do
558	   {	int level = 0;
559		char *lp = NULL;
560		char *rp;
561		char *end = NULL;
562
563		if ( bp >= btop )
564		   {	/* Filled up break table. */
565			/* Allocate a bigger one and start over. */
566			free((char *)breaks);
567			num_breaks <<= 1;
568			goto top;
569		   }
570		*bp++ = p;
571		/* Find the end of the argument */
572		for ( ; end == NULL; p++ )
573		   {	switch(*p)
574			   {
575			   case ',':
576				if ( !level ) end = p;
577				break;
578			   case '(':
579				if ( !level ) lp = p;
580				level++;
581				break;
582			   case ')':
583				if ( --level < 0 ) end = p;
584				else rp = p;
585				break;
586			   case '/':
587				p = skipspace(p, 1) - 1;
588				break;
589			   default:
590				;
591			   }
592		   }
593		/* Erase any embedded prototype parameters. */
594		if ( lp )
595		  writeblanks(lp + 1, rp);
596		p--;			/* back up over terminator */
597		/* Find the name being declared. */
598		/* This is complicated because of procedure and */
599		/* array modifiers. */
600		for ( ; ; )
601		   {	p = skipspace(p - 1, -1);
602			switch ( *p )
603			   {
604			   case ']':	/* skip array dimension(s) */
605			   case ')':	/* skip procedure args OR name */
606			   {	int level = 1;
607				while ( level )
608				 switch ( *--p )
609				   {
610				   case ']': case ')': level++; break;
611				   case '[': case '(': level--; break;
612				   case '/': p = skipspace(p, -1) + 1; break;
613				   default: ;
614				   }
615			   }
616				if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
617				   {	/* We found the name being declared */
618					while ( !isidfirstchar(*p) )
619					  p = skipspace(p, 1) + 1;
620					goto found;
621				   }
622				break;
623			   default:
624				goto found;
625			   }
626		   }
627found:		if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
628		  {	if ( convert_varargs )
629			  {	*bp++ = "va_alist";
630				vararg = p-2;
631			  }
632			else
633			  {	p++;
634				if ( bp == breaks + 1 )	/* sole argument */
635				  writeblanks(breaks[0], p);
636				else
637				  writeblanks(bp[-1] - 1, p);
638				bp--;
639			  }
640		   }
641		else
642		   {	while ( isidchar(*p) ) p--;
643			*bp++ = p+1;
644		   }
645		p = end;
646	   }
647	while ( *p++ == ',' );
648	*bp = p;
649	/* Make a special check for 'void' arglist */
650	if ( bp == breaks+2 )
651	   {	p = skipspace(breaks[0], 1);
652		if ( !strncmp(p, "void", 4) )
653		   {	p = skipspace(p+4, 1);
654			if ( p == breaks[2] - 1 )
655			   {	bp = breaks;	/* yup, pretend arglist is empty */
656				writeblanks(breaks[0], p + 1);
657			   }
658		   }
659	   }
660	/* Put out the function name and left parenthesis. */
661	p = buf;
662	while ( p != endfn ) putc(*p, out), p++;
663	/* Put out the declaration. */
664	if ( header )
665	  {	fputs(");", out);
666		for ( p = breaks[0]; *p; p++ )
667		  if ( *p == '\r' || *p == '\n' )
668		    putc(*p, out);
669	  }
670	else
671	  {	for ( ap = breaks+1; ap < bp; ap += 2 )
672		  {	p = *ap;
673			while ( isidchar(*p) )
674			  putc(*p, out), p++;
675			if ( ap < bp - 1 )
676			  fputs(", ", out);
677		  }
678		fputs(")  ", out);
679		/* Put out the argument declarations */
680		for ( ap = breaks+2; ap <= bp; ap += 2 )
681		  (*ap)[-1] = ';';
682		if ( vararg != 0 )
683		  {	*vararg = 0;
684			fputs(breaks[0], out);		/* any prior args */
685			fputs("va_dcl", out);		/* the final arg */
686			fputs(bp[0], out);
687		  }
688		else
689		  fputs(breaks[0], out);
690	  }
691	free((char *)breaks);
692	return 0;
693}
694