Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/yacc/main.c	Lines:	82	141	58.2 %
Date:	2017-11-07	Branches:	50	105	47.6 %


/* $OpenBSD: main.c,v 1.29 2017/05/25 20:11:03 tedu Exp $	 */
/* $NetBSD: main.c,v 1.5 1996/03/19 03:21:38 jtc Exp $	 */

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Robert Paul Corbett.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <fcntl.h>
#include <paths.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "defs.h"

char dflag;
char lflag;
char rflag;
char tflag;
char vflag;

char *symbol_prefix;
char *file_prefix = "y";

int lineno;
int outline;

int explicit_file_name;

char *action_file_name;
char *code_file_name;
char *defines_file_name;
char *input_file_name = "";
char *output_file_name;
char *text_file_name;
char *union_file_name;
char *verbose_file_name;

FILE *action_file;	/* a temp file, used to save actions associated    */
			/* with rules until the parser is written	   */
FILE *code_file;	/* y.code.c (used when the -r option is specified) */
FILE *defines_file;	/* y.tab.h					   */
FILE *input_file;	/* the input file				   */
FILE *output_file;	/* y.tab.c					   */
FILE *text_file;	/* a temp file, used to save text until all	   */
			/* symbols have been defined			   */
FILE *union_file;	/* a temp file, used to save the union		   */
			/* definition until all symbol have been	   */
			/* defined					   */
FILE *verbose_file;	/* y.output					   */

int nitems;
int nrules;
int nsyms;
int ntokens;
int nvars;

int start_symbol;
char **symbol_name;
short *symbol_value;
short *symbol_prec;
char *symbol_assoc;

short *ritem;
short *rlhs;
short *rrhs;
short *rprec;
char *rassoc;
short **derives;
char *nullable;

void onintr(int);
void set_signals(void);
void usage(void);
void getargs(int, char *[]);
void create_file_names(void);
void open_files(void);

volatile sig_atomic_t sigdie;

void
done(int k)
{
	if (action_file)
		unlink(action_file_name);
	if (text_file)
		unlink(text_file_name);
	if (union_file)
		unlink(union_file_name);
	if (sigdie)
		_exit(k);
	exit(k);
}


void
onintr(__unused int signo)
{
	sigdie = 1;
	done(1);
}


void
set_signals(void)
{
#ifdef SIGINT
	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
		signal(SIGINT, onintr);
#endif
#ifdef SIGTERM
	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
		signal(SIGTERM, onintr);
#endif
#ifdef SIGHUP
	if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
		signal(SIGHUP, onintr);
#endif
}


void
usage(void)
{
	fprintf(stderr, "usage: %s [-dlrtv] [-b file_prefix] [-o output_file] [-p symbol_prefix] file\n", __progname);
	exit(1);
}


void
getargs(int argc, char *argv[])
{
	int ch;

	while ((ch = getopt(argc, argv, "b:dlo:p:rtv")) != -1) {
		switch (ch) {
		case 'b':
			file_prefix = optarg;
			break;

		case 'd':
			dflag = 1;
			break;

		case 'l':
			lflag = 1;
			break;

		case 'o':
			output_file_name = optarg;
			explicit_file_name = 1;
			break;

		case 'p':
			symbol_prefix = optarg;
			break;

		case 'r':
			rflag = 1;
			break;

		case 't':
			tflag = 1;
			break;

		case 'v':
			vflag = 1;
			break;

		default:
			usage();
		}
	}
	argc -= optind;
	argv += optind;

	if (argc != 1)
		usage();
	if (strcmp(*argv, "-") == 0)
		input_file = stdin;
	else
		input_file_name = *argv;
}


void *
allocate(size_t n)
{
	void *v;

	v = NULL;
	if (n) {
		v = calloc(1, n);
		if (!v)
			no_space();
	}
	return (v);
}

#define TEMPNAME(s, c, d, l)	\
	(asprintf(&(s), "%.*s/yacc.%xXXXXXXXXXX", (int)(l), (d), (c)))

void
create_file_names(void)
{
	size_t len;
	char *tmpdir;

	tmpdir = _PATH_TMP;

	len = strlen(tmpdir);
	if (tmpdir[len - 1] == '/')
		len--;

	if (TEMPNAME(action_file_name, 'a', tmpdir, len) == -1 ||
	    TEMPNAME(text_file_name, 'r', tmpdir, len) == -1 ||
	    TEMPNAME(union_file_name, 'u', tmpdir, len) == -1)
		no_space();

	if (output_file_name == NULL) {
		if (asprintf(&output_file_name, "%s%s", file_prefix, OUTPUT_SUFFIX)
		    == -1)
			no_space();
	}
	if (rflag) {
		if (asprintf(&code_file_name, "%s%s", file_prefix, CODE_SUFFIX) == -1)
			no_space();
	} else
		code_file_name = output_file_name;

	if (dflag) {
		if (explicit_file_name) {
			char *suffix;

			defines_file_name = strdup(output_file_name);
			if (defines_file_name == 0)
				no_space();

			/* does the output_file_name have a known suffix */
			if ((suffix = strrchr(output_file_name, '.')) != 0 &&
			    (!strcmp(suffix, ".c") ||	/* good, old-fashioned C */
			     !strcmp(suffix, ".C") ||	/* C++, or C on Windows */
			     !strcmp(suffix, ".cc") ||	/* C++ */
			     !strcmp(suffix, ".cxx") ||	/* C++ */
			     !strcmp(suffix, ".cpp"))) {/* C++ (Windows) */
				strncpy(defines_file_name, output_file_name,
					suffix - output_file_name + 1);
				defines_file_name[suffix - output_file_name + 1] = 'h';
				defines_file_name[suffix - output_file_name + 2] = '\0';
			} else {
				fprintf(stderr, "%s: suffix of output file name %s"
				 " not recognized, no -d file generated.\n",
					__progname, output_file_name);
				dflag = 0;
				free(defines_file_name);
				defines_file_name = 0;
			}
		} else {
			if (asprintf(&defines_file_name, "%s%s", file_prefix,
				     DEFINES_SUFFIX) == -1)
				no_space();
		}
	}
	if (vflag) {
		if (asprintf(&verbose_file_name, "%s%s", file_prefix,
			     VERBOSE_SUFFIX) == -1)
			no_space();
	}
}


void
open_files(void)
{
	int fd;

	create_file_names();

	if (input_file == 0) {
		input_file = fopen(input_file_name, "r");
		if (input_file == 0)
			open_error(input_file_name);
	}
	fd = mkstemp(action_file_name);
	if (fd == -1 || (action_file = fdopen(fd, "w")) == NULL)
		open_error(action_file_name);

	fd = mkstemp(text_file_name);
	if (fd == -1 || (text_file = fdopen(fd, "w")) == NULL)
		open_error(text_file_name);

	if (vflag) {
		verbose_file = fopen(verbose_file_name, "w");
		if (verbose_file == 0)
			open_error(verbose_file_name);
	}
	if (dflag) {
		defines_file = fopen(defines_file_name, "w");
		if (defines_file == NULL)
			open_write_error(defines_file_name);
		fd = mkstemp(union_file_name);
		if (fd == -1 || (union_file = fdopen(fd, "w")) == NULL)
			open_error(union_file_name);
	}
	output_file = fopen(output_file_name, "w");
	if (output_file == 0)
		open_error(output_file_name);

	if (rflag) {
		code_file = fopen(code_file_name, "w");
		if (code_file == 0)
			open_error(code_file_name);
	} else
		code_file = output_file;
}


int
main(int argc, char *argv[])
{
	if (pledge("stdio rpath wpath cpath flock", NULL) == -1)
		fatal("pledge: invalid arguments");

	set_signals();
	getargs(argc, argv);
	open_files();
	reader();
	lr0();
	lalr();
	make_parser();
	verbose();
	output();
	done(0);
	/* NOTREACHED */
	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: main.c,v 1.29 2017/05/25 20:11:03 tedu Exp $ */
2			/* $NetBSD: main.c,v 1.5 1996/03/19 03:21:38 jtc Exp $ */
3
4			/*
5			* Copyright (c) 1989 The Regents of the University of California.
6			* All rights reserved.
7			*
8			* This code is derived from software contributed to Berkeley by
9			* Robert Paul Corbett.
10			*
11			* Redistribution and use in source and binary forms, with or without
12			* modification, are permitted provided that the following conditions
13			* are met:
14			* 1. Redistributions of source code must retain the above copyright
15			* notice, this list of conditions and the following disclaimer.
16			* 2. Redistributions in binary form must reproduce the above copyright
17			* notice, this list of conditions and the following disclaimer in the
18			* documentation and/or other materials provided with the distribution.
19			* 3. Neither the name of the University nor the names of its contributors
20			* may be used to endorse or promote products derived from this software
21			* without specific prior written permission.
22			*
23			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33			* SUCH DAMAGE.
34			*/
35
36			#include <sys/types.h>
37			#include <fcntl.h>
38			#include <paths.h>
39			#include <signal.h>
40			#include <stdlib.h>
41			#include <unistd.h>
42			#include "defs.h"
43
44			char dflag;
45			char lflag;
46			char rflag;
47			char tflag;
48			char vflag;
49
50			char *symbol_prefix;
51			char *file_prefix = "y";
52
53			int lineno;
54			int outline;
55
56			int explicit_file_name;
57
58			char *action_file_name;
59			char *code_file_name;
60			char *defines_file_name;
61			char *input_file_name = "";
62			char *output_file_name;
63			char *text_file_name;
64			char *union_file_name;
65			char *verbose_file_name;
66
67			FILE action_file; / a temp file, used to save actions associated */
68			/* with rules until the parser is written */
69			FILE code_file; / y.code.c (used when the -r option is specified) */
70			FILE defines_file; / y.tab.h */
71			FILE input_file; / the input file */
72			FILE output_file; / y.tab.c */
73			FILE text_file; / a temp file, used to save text until all */
74			/* symbols have been defined */
75			FILE union_file; / a temp file, used to save the union */
76			/* definition until all symbol have been */
77			/* defined */
78			FILE verbose_file; / y.output */
79
80			int nitems;
81			int nrules;
82			int nsyms;
83			int ntokens;
84			int nvars;
85
86			int start_symbol;
87			char **symbol_name;
88			short *symbol_value;
89			short *symbol_prec;
90			char *symbol_assoc;
91
92			short *ritem;
93			short *rlhs;
94			short *rrhs;
95			short *rprec;
96			char *rassoc;
97			short **derives;
98			char *nullable;
99
100			void onintr(int);
101			void set_signals(void);
102			void usage(void);
103			void getargs(int, char *[]);
104			void create_file_names(void);
105			void open_files(void);
106
107			volatile sig_atomic_t sigdie;
108
109			void
110			done(int k)
111			{
112	✓✗	30	if (action_file)
113		15	unlink(action_file_name);
114	✓✗	15	if (text_file)
115		15	unlink(text_file_name);
116	✓✓	15	if (union_file)
117		11	unlink(union_file_name);
118	✗✓	15	if (sigdie)
119			_exit(k);
120			exit(k);
121			}
122
123
124			void
125			onintr(__unused int signo)
126			{
127			sigdie = 1;
128			done(1);
129			}
130
131
132			void
133			set_signals(void)
134			{
135			#ifdef SIGINT
136	✓✗	30	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
137		15	signal(SIGINT, onintr);
138			#endif
139			#ifdef SIGTERM
140	✓✗	15	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
141		15	signal(SIGTERM, onintr);
142			#endif
143			#ifdef SIGHUP
144	✓✗	15	if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
145		15	signal(SIGHUP, onintr);
146			#endif
147		15	}
148
149
150			void
151			usage(void)
152			{
153			fprintf(stderr, "usage: %s [-dlrtv] [-b file_prefix] [-o output_file] [-p symbol_prefix] file\n", __progname);
154			exit(1);
155			}
156
157
158			void
159			getargs(int argc, char *argv[])
160			{
161			int ch;
162
163	✓✓	81	while ((ch = getopt(argc, argv, "b:dlo:p:rtv")) != -1) {
164	✓✓✗✓ ✓✗✗✗ ✗	36	switch (ch) {
165			case 'b':
166		4	file_prefix = optarg;
167		4	break;
168
169			case 'd':
170		15	dflag = 1;
171		15	break;
172
173			case 'l':
174			lflag = 1;
175			break;
176
177			case 'o':
178		11	output_file_name = optarg;
179		11	explicit_file_name = 1;
180		11	break;
181
182			case 'p':
183		6	symbol_prefix = optarg;
184		6	break;
185
186			case 'r':
187			rflag = 1;
188			break;
189
190			case 't':
191			tflag = 1;
192			break;
193
194			case 'v':
195			vflag = 1;
196			break;
197
198			default:
199			usage();
200			}
201			}
202		15	argc -= optind;
203		15	argv += optind;
204
205	✗✓	15	if (argc != 1)
206			usage();
207	✗✓	15	if (strcmp(*argv, "-") == 0)
208			input_file = stdin;
209			else
210		15	input_file_name = *argv;
211		15	}
212
213
214			void *
215			allocate(size_t n)
216			{
217			void *v;
218
219			v = NULL;
220	✓✗	147404	if (n) {
221		73702	v = calloc(1, n);
222	✗✓	73702	if (!v)
223			no_space();
224			}
225		73702	return (v);
226			}
227
228			#define TEMPNAME(s, c, d, l) \
229			(asprintf(&(s), "%.*s/yacc.%xXXXXXXXXXX", (int)(l), (d), (c)))
230
231			void
232			create_file_names(void)
233			{
234			size_t len;
235			char *tmpdir;
236
237			tmpdir = _PATH_TMP;
238
239		30	len = strlen(tmpdir);
240	✓✗	15	if (tmpdir[len - 1] == '/')
241		15	len--;
242
243	✓✗✗✓	30	if (TEMPNAME(action_file_name, 'a', tmpdir, len) == -1 \|\|
244	✓✗	15	TEMPNAME(text_file_name, 'r', tmpdir, len) == -1 \|\|
245		15	TEMPNAME(union_file_name, 'u', tmpdir, len) == -1)
246			no_space();
247
248	✓✓	15	if (output_file_name == NULL) {
249	✗✓	8	if (asprintf(&output_file_name, "%s%s", file_prefix, OUTPUT_SUFFIX)
250		4	== -1)
251			no_space();
252			}
253	✗✓	15	if (rflag) {
254			if (asprintf(&code_file_name, "%s%s", file_prefix, CODE_SUFFIX) == -1)
255			no_space();
256			} else
257		15	code_file_name = output_file_name;
258
259	✓✓	15	if (dflag) {
260	✓✓	11	if (explicit_file_name) {
261			char *suffix;
262
263		7	defines_file_name = strdup(output_file_name);
264	✗✓	7	if (defines_file_name == 0)
265			no_space();
266
267			/* does the output_file_name have a known suffix */
268	✓✗✗✗	7	if ((suffix = strrchr(output_file_name, '.')) != 0 &&
269	✗✓	7	(!strcmp(suffix, ".c") \|\| /* good, old-fashioned C */
270			!strcmp(suffix, ".C") \|\| /* C++, or C on Windows */
271			!strcmp(suffix, ".cc") \|\| /* C++ */
272			!strcmp(suffix, ".cxx") \|\| /* C++ */
273			!strcmp(suffix, ".cpp"))) {/* C++ (Windows) */
274		14	strncpy(defines_file_name, output_file_name,
275		7	suffix - output_file_name + 1);
276		7	defines_file_name[suffix - output_file_name + 1] = 'h';
277		7	defines_file_name[suffix - output_file_name + 2] = '\0';
278		7	} else {
279			fprintf(stderr, "%s: suffix of output file name %s"
280			" not recognized, no -d file generated.\n",
281			__progname, output_file_name);
282			dflag = 0;
283			free(defines_file_name);
284			defines_file_name = 0;
285			}
286		7	} else {
287	✗✓	8	if (asprintf(&defines_file_name, "%s%s", file_prefix,
288		4	DEFINES_SUFFIX) == -1)
289			no_space();
290			}
291			}
292	✗✓	15	if (vflag) {
293			if (asprintf(&verbose_file_name, "%s%s", file_prefix,
294			VERBOSE_SUFFIX) == -1)
295			no_space();
296			}
297		15	}
298
299
300			void
301			open_files(void)
302			{
303			int fd;
304
305		30	create_file_names();
306
307	✓✗	15	if (input_file == 0) {
308		15	input_file = fopen(input_file_name, "r");
309	✗✓	15	if (input_file == 0)
310			open_error(input_file_name);
311			}
312		15	fd = mkstemp(action_file_name);
313	✓✗✗✓	30	if (fd == -1 \|\| (action_file = fdopen(fd, "w")) == NULL)
314			open_error(action_file_name);
315
316		15	fd = mkstemp(text_file_name);
317	✓✗✗✓	30	if (fd == -1 \|\| (text_file = fdopen(fd, "w")) == NULL)
318			open_error(text_file_name);
319
320	✗✓	15	if (vflag) {
321			verbose_file = fopen(verbose_file_name, "w");
322			if (verbose_file == 0)
323			open_error(verbose_file_name);
324			}
325	✓✓	15	if (dflag) {
326		11	defines_file = fopen(defines_file_name, "w");
327	✗✓	11	if (defines_file == NULL)
328			open_write_error(defines_file_name);
329		11	fd = mkstemp(union_file_name);
330	✓✗✗✓	22	if (fd == -1 \|\| (union_file = fdopen(fd, "w")) == NULL)
331			open_error(union_file_name);
332			}
333		15	output_file = fopen(output_file_name, "w");
334	✗✓	15	if (output_file == 0)
335			open_error(output_file_name);
336
337	✗✓	15	if (rflag) {
338			code_file = fopen(code_file_name, "w");
339			if (code_file == 0)
340			open_error(code_file_name);
341			} else
342		15	code_file = output_file;
343		15	}
344
345
346			int
347			main(int argc, char *argv[])
348			{
349	✗✓	30	if (pledge("stdio rpath wpath cpath flock", NULL) == -1)
350			fatal("pledge: invalid arguments");
351
352			set_signals();
353			getargs(argc, argv);
354			open_files();
355			reader();
356			lr0();
357			lalr();
358			make_parser();
359			verbose();
360			output();
361			done(0);
362			/* NOTREACHED */
363			return (0);
364			}