295 lines
6.7 KiB
C
295 lines
6.7 KiB
C
/*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1987, 1991, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#if 0
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)wc.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
#endif
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <locale.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <wchar.h>
|
|
#include <wctype.h>
|
|
|
|
uintmax_t tlinect, twordct, tcharct, tlongline;
|
|
int doline, doword, dochar, domulti, dolongline;
|
|
|
|
static int cnt(const char *);
|
|
static void usage(void);
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int ch, errors, total;
|
|
|
|
(void) setlocale(LC_CTYPE, "");
|
|
|
|
while ((ch = getopt(argc, argv, "clmwL")) != -1)
|
|
switch((char)ch) {
|
|
case 'l':
|
|
doline = 1;
|
|
break;
|
|
case 'w':
|
|
doword = 1;
|
|
break;
|
|
case 'c':
|
|
dochar = 1;
|
|
domulti = 0;
|
|
break;
|
|
case 'L':
|
|
dolongline = 1;
|
|
break;
|
|
case 'm':
|
|
domulti = 1;
|
|
dochar = 0;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argv += optind;
|
|
argc -= optind;
|
|
|
|
/* Wc's flags are on by default. */
|
|
if (doline + doword + dochar + domulti + dolongline == 0)
|
|
doline = doword = dochar = 1;
|
|
|
|
errors = 0;
|
|
total = 0;
|
|
if (!*argv) {
|
|
if (cnt((char *)NULL) != 0)
|
|
++errors;
|
|
else
|
|
(void)printf("\n");
|
|
}
|
|
else do {
|
|
if (cnt(*argv) != 0)
|
|
++errors;
|
|
else
|
|
(void)printf(" %s\n", *argv);
|
|
++total;
|
|
} while(*++argv);
|
|
|
|
if (total > 1) {
|
|
if (doline)
|
|
(void)printf(" %7ju", tlinect);
|
|
if (doword)
|
|
(void)printf(" %7ju", twordct);
|
|
if (dochar || domulti)
|
|
(void)printf(" %7ju", tcharct);
|
|
if (dolongline)
|
|
(void)printf(" %7ju", tlongline);
|
|
(void)printf(" total\n");
|
|
}
|
|
exit(errors == 0 ? 0 : 1);
|
|
}
|
|
|
|
static int
|
|
cnt(const char *file)
|
|
{
|
|
struct stat sb;
|
|
uintmax_t linect, wordct, charct, llct, tmpll;
|
|
int fd, len, warned;
|
|
size_t clen;
|
|
short gotsp;
|
|
u_char *p;
|
|
u_char buf[MAXBSIZE];
|
|
wchar_t wch;
|
|
mbstate_t mbs;
|
|
|
|
linect = wordct = charct = llct = tmpll = 0;
|
|
if (file == NULL) {
|
|
file = "stdin";
|
|
fd = STDIN_FILENO;
|
|
} else {
|
|
if ((fd = open(file, O_RDONLY, 0)) < 0) {
|
|
warn("%s: open", file);
|
|
return (1);
|
|
}
|
|
if (doword || (domulti && MB_CUR_MAX != 1))
|
|
goto word;
|
|
/*
|
|
* 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))) {
|
|
if (len == -1) {
|
|
warn("%s: read", file);
|
|
(void)close(fd);
|
|
return (1);
|
|
}
|
|
charct += len;
|
|
for (p = buf; len--; ++p)
|
|
if (*p == '\n') {
|
|
if (tmpll > llct)
|
|
llct = tmpll;
|
|
tmpll = 0;
|
|
++linect;
|
|
} else
|
|
tmpll++;
|
|
}
|
|
tlinect += linect;
|
|
(void)printf(" %7ju", linect);
|
|
if (dochar) {
|
|
tcharct += charct;
|
|
(void)printf(" %7ju", charct);
|
|
}
|
|
if (dolongline) {
|
|
if (llct > tlongline)
|
|
tlongline = llct;
|
|
(void)printf(" %7ju", tlongline);
|
|
}
|
|
(void)close(fd);
|
|
return (0);
|
|
}
|
|
/*
|
|
* If all we need is the number of characters and it's a
|
|
* regular file, just stat the puppy.
|
|
*/
|
|
if (dochar || domulti) {
|
|
if (fstat(fd, &sb)) {
|
|
warn("%s: fstat", file);
|
|
(void)close(fd);
|
|
return (1);
|
|
}
|
|
if (S_ISREG(sb.st_mode)) {
|
|
(void)printf(" %7lld", (long long)sb.st_size);
|
|
tcharct += sb.st_size;
|
|
(void)close(fd);
|
|
return (0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Do it the hard way... */
|
|
word: gotsp = 1;
|
|
warned = 0;
|
|
memset(&mbs, 0, sizeof(mbs));
|
|
while ((len = read(fd, buf, MAXBSIZE)) != 0) {
|
|
if (len == -1) {
|
|
warn("%s: read", file);
|
|
(void)close(fd);
|
|
return (1);
|
|
}
|
|
p = buf;
|
|
while (len > 0) {
|
|
if (!domulti || MB_CUR_MAX == 1) {
|
|
clen = 1;
|
|
wch = (unsigned char)*p;
|
|
} else if ((clen = mbrtowc(&wch, p, len, &mbs)) ==
|
|
(size_t)-1) {
|
|
if (!warned) {
|
|
errno = EILSEQ;
|
|
warn("%s", file);
|
|
warned = 1;
|
|
}
|
|
memset(&mbs, 0, sizeof(mbs));
|
|
clen = 1;
|
|
wch = (unsigned char)*p;
|
|
} else if (clen == (size_t)-2)
|
|
break;
|
|
else if (clen == 0)
|
|
clen = 1;
|
|
charct++;
|
|
if (wch != L'\n')
|
|
tmpll++;
|
|
len -= clen;
|
|
p += clen;
|
|
if (wch == L'\n') {
|
|
if (tmpll > llct)
|
|
llct = tmpll;
|
|
tmpll = 0;
|
|
++linect;
|
|
}
|
|
if (iswspace(wch))
|
|
gotsp = 1;
|
|
else if (gotsp) {
|
|
gotsp = 0;
|
|
++wordct;
|
|
}
|
|
}
|
|
}
|
|
if (domulti && MB_CUR_MAX > 1)
|
|
if (mbrtowc(NULL, NULL, 0, &mbs) == (size_t)-1 && !warned)
|
|
warn("%s", file);
|
|
if (doline) {
|
|
tlinect += linect;
|
|
(void)printf(" %7ju", linect);
|
|
}
|
|
if (doword) {
|
|
twordct += wordct;
|
|
(void)printf(" %7ju", wordct);
|
|
}
|
|
if (dochar || domulti) {
|
|
tcharct += charct;
|
|
(void)printf(" %7ju", charct);
|
|
}
|
|
if (dolongline) {
|
|
if (llct > tlongline)
|
|
tlongline = llct;
|
|
(void)printf(" %7ju", llct);
|
|
}
|
|
(void)close(fd);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "usage: wc [-Lclmw] [file ...]\n");
|
|
exit(1);
|
|
}
|