Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/wc/wc.c	Lines:	86	123	69.9 %
Date:	2017-11-13	Branches:	69	96	71.9 %


/*	$OpenBSD: wc.c,v 1.21 2016/09/16 09:25:23 fcambus Exp $	*/

/*
 * Copyright (c) 1980, 1987, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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/param.h>	/* MAXBSIZE */
#include <sys/stat.h>
#include <sys/file.h>
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <ctype.h>
#include <err.h>
#include <unistd.h>
#include <util.h>
#include <wchar.h>
#include <wctype.h>

int64_t	tlinect, twordct, tcharct;
int	doline, doword, dochar, humanchar, multibyte;
int	rval;
extern char *__progname;

static void print_counts(int64_t, int64_t, int64_t, char *);
static void format_and_print(int64_t);
static void cnt(char *);

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

	setlocale(LC_CTYPE, "");

	if (pledge("stdio rpath flock cpath wpath", NULL) == -1)
		err(1, "pledge");

	while ((ch = getopt(argc, argv, "lwchm")) != -1)
		switch(ch) {
		case 'l':
			doline = 1;
			break;
		case 'w':
			doword = 1;
			break;
		case 'm':
			if (MB_CUR_MAX > 1)
				multibyte = 1;
			/* FALLTHROUGH */
		case 'c':
			dochar = 1;
			break;
		case 'h':
			humanchar = 1;
			break;
		case '?':
		default:
			fprintf(stderr,
			    "usage: %s [-c | -m] [-hlw] [file ...]\n",
			    __progname);
			return 1;
		}
	argv += optind;
	argc -= optind;

	/*
	 * wc is unusual in that its flags are on by default, so,
	 * if you don't get any arguments, you have to turn them
	 * all on.
	 */
	if (!doline && !doword && !dochar)
		doline = doword = dochar = 1;

	if (!*argv) {
		cnt(NULL);
	} else {
		int dototal = (argc > 1);

		do {
			cnt(*argv);
		} while(*++argv);

		if (dototal)
			print_counts(tlinect, twordct, tcharct, "total");
	}

	return rval;
}

static void
cnt(char *file)
{
	static char *buf;
	static size_t bufsz;

	FILE *stream;
	char *C;
	wchar_t wc;
	short gotsp;
	ssize_t len;
	int64_t linect, wordct, charct;
	struct stat sbuf;
	int fd;

	linect = wordct = charct = 0;
	stream = NULL;
	if (file) {
		if ((fd = open(file, O_RDONLY, 0)) < 0) {
			warn("%s", file);
			rval = 1;
			return;
		}
	} else  {
		fd = STDIN_FILENO;
	}

	if (!doword && !multibyte) {
		if (bufsz < MAXBSIZE &&
		    (buf = realloc(buf, MAXBSIZE)) == NULL)
			err(1, NULL);
		/*
		 * Line counting is split out because it's a lot
		 * faster to get lines than to get words, since
		 * the word count requires some logic.
		 */
		if (doline) {
			while ((len = read(fd, buf, MAXBSIZE)) > 0) {
				charct += len;
				for (C = buf; len--; ++C)
					if (*C == '\n')
						++linect;
			}
			if (len == -1) {
				warn("%s", file);
				rval = 1;
			}
		}
		/*
		 * If all we need is the number of characters and
		 * it's a directory or a regular or linked file, just
		 * stat the puppy.  We avoid testing for it not being
		 * a special device in case someone adds a new type
		 * of inode.
		 */
		else if (dochar) {
			mode_t ifmt;

			if (fstat(fd, &sbuf)) {
				warn("%s", file);
				rval = 1;
			} else {
				ifmt = sbuf.st_mode & S_IFMT;
				if (ifmt == S_IFREG || ifmt == S_IFLNK
				    || ifmt == S_IFDIR) {
					charct = sbuf.st_size;
				} else {
					while ((len = read(fd, buf, MAXBSIZE)) > 0)
						charct += len;
					if (len == -1) {
						warn("%s", file);
						rval = 1;
					}
				}
			}
		}
	} else {
		if (file == NULL)
			stream = stdin;
		else if ((stream = fdopen(fd, "r")) == NULL) {
			warn("%s", file);
			close(fd);
			rval = 1;
			return;
		}

		/*
		 * Do it the hard way.
		 * According to POSIX, a word is a "maximal string of
		 * characters delimited by whitespace."  Nothing is said
		 * about a character being printing or non-printing.
		 */
		gotsp = 1;
		while ((len = getline(&buf, &bufsz, stream)) > 0) {
			if (multibyte) {
				for (C = buf; *C != '\0'; C += len) {
					++charct;
					len = mbtowc(&wc, C, MB_CUR_MAX);
					if (len == -1) {
						mbtowc(NULL, NULL,
						    MB_CUR_MAX);
						len = 1;
						wc = L' ';
					}
					if (iswspace(wc)) {
						gotsp = 1;
						if (wc == L'\n')
							++linect;
					} else if (gotsp) {
						gotsp = 0;
						++wordct;
					}
				}
			} else {
				charct += len;
				for (C = buf; *C != '\0'; ++C) {
					if (isspace((unsigned char)*C)) {
						gotsp = 1;
						if (*C == '\n')
							++linect;
					} else if (gotsp) {
						gotsp = 0;
						++wordct;
					}
				}
			}
		}
		if (ferror(stream)) {
			warn("%s", file);
			rval = 1;
		}
	}

	print_counts(linect, wordct, charct, file);

	/*
	 * Don't bother checking doline, doword, or dochar -- speeds
	 * up the common case
	 */
	tlinect += linect;
	twordct += wordct;
	tcharct += charct;

	if ((stream == NULL ? close(fd) : fclose(stream)) != 0) {
		warn("%s", file);
		rval = 1;
	}
}

static void
format_and_print(int64_t v)
{
	if (humanchar) {
		char result[FMT_SCALED_STRSIZE];

		fmt_scaled((long long)v, result);
		printf("%7s", result);
	} else {
		printf(" %7lld", v);
	}
}

static void
print_counts(int64_t lines, int64_t words, int64_t chars, char *name)
{
	if (doline)
		format_and_print(lines);
	if (doword)
		format_and_print(words);
	if (dochar)
		format_and_print(chars);

	if (name)
		printf(" %s\n", name);
	else
		printf("\n");
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: wc.c,v 1.21 2016/09/16 09:25:23 fcambus Exp $ */
2
3			/*
4			* Copyright (c) 1980, 1987, 1991, 1993
5			* The Regents of the University of California. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			* 1. Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the distribution.
15			* 3. Neither the name of the University nor the names of its contributors
16			* may be used to endorse or promote products derived from this software
17			* without specific prior written permission.
18			*
19			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29			* SUCH DAMAGE.
30			*/
31
32			#include <sys/param.h> /* MAXBSIZE */
33			#include <sys/stat.h>
34			#include <sys/file.h>
35			#include <stdio.h>
36			#include <stdlib.h>
37			#include <locale.h>
38			#include <ctype.h>
39			#include <err.h>
40			#include <unistd.h>
41			#include <util.h>
42			#include <wchar.h>
43			#include <wctype.h>
44
45			int64_t tlinect, twordct, tcharct;
46			int doline, doword, dochar, humanchar, multibyte;
47			int rval;
48			extern char *__progname;
49
50			static void print_counts(int64_t, int64_t, int64_t, char *);
51			static void format_and_print(int64_t);
52			static void cnt(char *);
53
54			int
55			main(int argc, char *argv[])
56			{
57			int ch;
58
59		308	setlocale(LC_CTYPE, "");
60
61	✗✓	154	if (pledge("stdio rpath flock cpath wpath", NULL) == -1)
62			err(1, "pledge");
63
64	✓✓	808	while ((ch = getopt(argc, argv, "lwchm")) != -1)
65	✓✓✓✗ ✗✓	500	switch(ch) {
66			case 'l':
67			doline = 1;
68		82	break;
69			case 'w':
70			doword = 1;
71			break;
72			case 'm':
73	✓✓	64	if (MB_CUR_MAX > 1)
74		32	multibyte = 1;
75			/* FALLTHROUGH */
76			case 'c':
77			dochar = 1;
78		104	break;
79			case 'h':
80			humanchar = 1;
81			break;
82			case '?':
83			default:
84			fprintf(stderr,
85			"usage: %s [-c \| -m] [-hlw] [file ...]\n",
86			__progname);
87			return 1;
88			}
89		154	argv += optind;
90		154	argc -= optind;
91
92			/*
93			* wc is unusual in that its flags are on by default, so,
94			* if you don't get any arguments, you have to turn them
95			* all on.
96			*/
97	✓✓	154	if (!doline && !doword && !dochar)
98		32	doline = doword = dochar = 1;
99
100	✓✗	154	if (!*argv) {
101		154	cnt(NULL);
102		154	} else {
103			int dototal = (argc > 1);
104
105			do {
106			cnt(*argv);
107			} while(*++argv);
108
109			if (dototal)
110			print_counts(tlinect, twordct, tcharct, "total");
111			}
112
113		154	return rval;
114		154	}
115
116			static void
117			cnt(char *file)
118			{
119			static char *buf;
120			static size_t bufsz;
121
122			FILE *stream;
123			char *C;
124		308	wchar_t wc;
125			short gotsp;
126			ssize_t len;
127			int64_t linect, wordct, charct;
128		154	struct stat sbuf;
129			int fd;
130
131			linect = wordct = charct = 0;
132			stream = NULL;
133	✗✓	154	if (file) {
134			if ((fd = open(file, O_RDONLY, 0)) < 0) {
135			warn("%s", file);
136			rval = 1;
137			return;
138			}
139			} else {
140			fd = STDIN_FILENO;
141			}
142
143	✓✓	154	if (!doword && !multibyte) {
144	✓✗✗✓	116	if (bufsz < MAXBSIZE &&
145		58	(buf = realloc(buf, MAXBSIZE)) == NULL)
146			err(1, NULL);
147			/*
148			* Line counting is split out because it's a lot
149			* faster to get lines than to get words, since
150			* the word count requires some logic.
151			*/
152	✓✓	58	if (doline) {
153	✓✓	48	while ((len = read(fd, buf, MAXBSIZE)) > 0) {
154		6	charct += len;
155	✓✓	1236	for (C = buf; len--; ++C)
156	✓✓	612	if (*C == '\n')
157		12	++linect;
158			}
159	✗✓	18	if (len == -1) {
160			warn("%s", file);
161			rval = 1;
162			}
163			}
164			/*
165			* If all we need is the number of characters and
166			* it's a directory or a regular or linked file, just
167			* stat the puppy. We avoid testing for it not being
168			* a special device in case someone adds a new type
169			* of inode.
170			*/
171	✓✗	40	else if (dochar) {
172			mode_t ifmt;
173
174	✗✓	40	if (fstat(fd, &sbuf)) {
175			warn("%s", file);
176			rval = 1;
177			} else {
178		40	ifmt = sbuf.st_mode & S_IFMT;
179	✓✓	80	if (ifmt == S_IFREG \|\| ifmt == S_IFLNK
180		40	\|\| ifmt == S_IFDIR) {
181		12	charct = sbuf.st_size;
182		12	} else {
183	✓✓	92	while ((len = read(fd, buf, MAXBSIZE)) > 0)
184		18	charct += len;
185	✗✓	28	if (len == -1) {
186			warn("%s", file);
187			rval = 1;
188			}
189			}
190			}
191		40	}
192			} else {
193	✓✗	96	if (file == NULL)
194		96	stream = stdin;
195			else if ((stream = fdopen(fd, "r")) == NULL) {
196			warn("%s", file);
197			close(fd);
198			rval = 1;
199			return;
200			}
201
202			/*
203			* Do it the hard way.
204			* According to POSIX, a word is a "maximal string of
205			* characters delimited by whitespace." Nothing is said
206			* about a character being printing or non-printing.
207			*/
208			gotsp = 1;
209	✓✓	384	while ((len = getline(&buf, &bufsz, stream)) > 0) {
210	✓✓	96	if (multibyte) {
211	✓✓	400	for (C = buf; *C != '\0'; C += len) {
212		168	++charct;
213		168	len = mbtowc(&wc, C, MB_CUR_MAX);
214	✓✓	168	if (len == -1) {
215		8	mbtowc(NULL, NULL,
216		8	MB_CUR_MAX);
217			len = 1;
218		8	wc = L' ';
219		8	}
220	✓✓	168	if (iswspace(wc)) {
221			gotsp = 1;
222	✓✓	44	if (wc == L'\n')
223		20	++linect;
224	✓✓	124	} else if (gotsp) {
225			gotsp = 0;
226		44	++wordct;
227		44	}
228			}
229			} else {
230		64	charct += len;
231	✓✓	864	for (C = buf; *C != '\0'; ++C) {
232	✓✓	368	if (isspace((unsigned char)*C)) {
233			gotsp = 1;
234	✓✓	72	if (*C == '\n')
235		40	++linect;
236	✓✓	296	} else if (gotsp) {
237			gotsp = 0;
238		80	++wordct;
239		80	}
240			}
241			}
242			}
243	✓✗✗✓ ✗✗	192	if (ferror(stream)) {
244			warn("%s", file);
245			rval = 1;
246			}
247			}
248
249		154	print_counts(linect, wordct, charct, file);
250
251			/*
252			* Don't bother checking doline, doword, or dochar -- speeds
253			* up the common case
254			*/
255		154	tlinect += linect;
256		154	twordct += wordct;
257		154	tcharct += charct;
258
259	✓✓✗✓	462	if ((stream == NULL ? close(fd) : fclose(stream)) != 0) {
260			warn("%s", file);
261			rval = 1;
262			}
263		308	}
264
265			static void
266			format_and_print(int64_t v)
267			{
268	✗✓	692	if (humanchar) {
269			char result[FMT_SCALED_STRSIZE];
270
271			fmt_scaled((long long)v, result);
272			printf("%7s", result);
273			} else {
274		346	printf(" %7lld", v);
275			}
276		346	}
277
278			static void
279			print_counts(int64_t lines, int64_t words, int64_t chars, char *name)
280			{
281	✓✓	308	if (doline)
282		114	format_and_print(lines);
283	✓✓	154	if (doword)
284		96	format_and_print(words);
285	✓✓	154	if (dochar)
286		136	format_and_print(chars);
287
288	✗✓	154	if (name)
289			printf(" %s\n", name);
290			else
291		154	printf("\n");
292		154	}