From: Thomas Cort Date: Sun, 27 Oct 2013 01:19:33 +0000 (-0400) Subject: Importing usr.bin/comm X-Git-Tag: v3.3.0~726 X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/index.css?a=commitdiff_plain;h=f55b7dc853ecf694135d9f6302d7eb1653198c80;p=minix.git Importing usr.bin/comm Replaces commands/comm. No Minix-specific changes needed. Change-Id: Ifa37c86b09f958ca0d729f3a8030d0162819a080 --- diff --git a/commands/Makefile b/commands/Makefile index 35f06d9be..bb64fec91 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -5,7 +5,7 @@ SUBDIR= add_route arp ash at backup btrace \ cawf cd cdprobe cpp \ chmod chown ci cleantmp cmp co \ - comm compress cp crc cron crontab \ + compress cp crc cron crontab \ dd decomp16 DESCRIBE devmand devsize df dhcpd \ dhrystone diff diskctl dumpcore \ eject factor fbdctl \ diff --git a/commands/comm/Makefile b/commands/comm/Makefile deleted file mode 100644 index 7d089949f..000000000 --- a/commands/comm/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -PROG= comm -MAN= - -.include diff --git a/commands/comm/comm.c b/commands/comm/comm.c deleted file mode 100644 index 3dd39d20d..000000000 --- a/commands/comm/comm.c +++ /dev/null @@ -1,206 +0,0 @@ -/* comm - select lines from two sorted files Author: Martin C. Atkins */ - -/* - * This program was written by: - * Martin C. Atkins, - * University of York, - * Heslington, - * York. Y01 5DD - * England - * and is released into the public domain, on the condition - * that this comment is always included without alteration. - */ - -#include -#include -#include -#include -#include -#include -#include - -#define BUFFER_SIZE (512) -#define LINMAX (600) - -struct file { - char *name; /* the file's name */ - int fd; /* the file descripter */ - char buf[BUFFER_SIZE]; /* buffer storage */ - char *next; /* the next character to read */ - char *endp; /* the first invalid character */ - int seeneof; /* an end of file has been seen */ -} files[2]; - -char lines[2][LINMAX]; - -int colflgs[3] = {1, 2, 3}; /* number of tabs + 1: 0 => no column */ - -static char *umsg = "Usage: comm [-[123]] file1 file2\n"; - -int main(int argc, char **argv); -void usage(void); -void error(char *s, char *f); -void eopen(char *fn, struct file *file); -int getbuf(struct file *file); -int readline(int fno); -void comm(void); -void putcol(int col, char *buf); -void cpycol(int col); - -int main(argc, argv) -int argc; -char *argv[]; -{ - int cnt; - if (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { - char *ap; - for (ap = &argv[1][1]; *ap; ap++) switch (*ap) { - case '1': - case '2': - case '3': - cnt = *ap - '1'; - if (colflgs[cnt] == 0) break; - colflgs[cnt] = 0; - for (cnt++; cnt < 3; cnt++) colflgs[cnt]--; - break; - default: usage(); - } - argc--; - argv++; - } - if (argc != 3) usage(); - eopen(argv[1], &files[0]); - eopen(argv[2], &files[1]); - comm(); - return(0); -} - -void usage() -{ - - std_err(umsg); - exit(1); -} - -void error(s, f) -char *s, *f; -{ - std_err("comm: "); - std_err(s); - if (f) std_err(f); - std_err("\n"); - exit(1); -} - -void eopen(fn, file) -char *fn; -struct file *file; -{ - file->name = fn; - file->next = file->endp = &file->buf[0]; - file->seeneof = 0; - if (fn[0] == '-' && fn[1] == '\0') - file->fd = 0; - else if ((file->fd = open(fn, O_RDONLY)) < 0) - error("can't open ", fn); -} - - -int getbuf(file) -struct file *file; -{ -/* Get a buffer-full from the file. Return true if no characters - * were obtained because we are at end of file. - */ - int n; - - if (file->seeneof) return(1); - if ((n = read(file->fd, &file->buf[0], BUFFER_SIZE)) < 0) - error("read error on ", file->name); - if (n == 0) { - file->seeneof++; - return 1; - } - file->next = &file->buf[0]; - file->endp = &file->buf[n]; - return(0); -} - - -int readline(fno) -int fno; -{ -/* Read up to the next '\n' character to buf. - * Return a complete line, even if end of file occurs within a line. - * Return false at end of file/ - */ - register struct file *file = &files[fno]; - char *buf = lines[fno]; - - if (file->next == file->endp && getbuf(file)) return(0); - while ((*buf++ = *file->next++) != '\n') - if (file->next == file->endp && getbuf(file)) { - *buf++ = '\n'; - *buf = '\0'; - return(1); - } - *buf = '\0'; - return(1); -} - -void comm() -{ - register int res; - - if (!readline(0)) { - cpycol(1); - return; - } - if (!readline(1)) { - putcol(0, lines[0]); - cpycol(0); - return; - } - for (;;) { - if ((res = strcmp(lines[0], lines[1])) != 0) { - res = res > 0; - putcol(res, lines[res]); - if (!readline(res)) { - putcol(!res, lines[!res]); - cpycol(!res); - return; - } - } else { - putcol(2, lines[0]); /* files[1]lin == f2lin */ - if (!readline(0)) { - cpycol(1); - return; - } - if (!readline(1)) { - putcol(0, lines[0]); - cpycol(0); - return; - } - } - } - - /* NOTREACHED */ -} - -void putcol(col, buf) -int col; -char *buf; -{ - int cnt; - - if (colflgs[col] == 0) return; - for (cnt = 0; cnt < colflgs[col] - 1; cnt++) printf("\t"); - printf("%s", buf); -} - -void cpycol(col) -int col; -{ - if (colflgs[col]) while (readline(col)) - putcol(col, lines[col]); -} diff --git a/man/man1/Makefile b/man/man1/Makefile index dc31a2c11..dcd7a151f 100644 --- a/man/man1/Makefile +++ b/man/man1/Makefile @@ -1,6 +1,6 @@ MAN= ash.1 at.1 \ bsfilt.1 cawf.1 chgrp.1 \ - chmod.1 cmp.1 comm.1 compress.1 \ + chmod.1 cmp.1 compress.1 \ cp.1 crc.1 crontab.1 dd.1 \ df.1 dhrystone.1 dosdir.1 dosread.1 doswrite.1 \ dumpcore.1 eject.1 \ diff --git a/man/man1/comm.1 b/man/man1/comm.1 deleted file mode 100644 index 9731d51da..000000000 --- a/man/man1/comm.1 +++ /dev/null @@ -1,49 +0,0 @@ -.TH COMM 1 -.SH NAME -comm \- print lines common to two sorted files -.SH SYNOPSIS -\fBcomm\fR [\fB\-123\fR] \fIfile1 file2\fR -.br -.de FL -.TP -\\fB\\$1\\fR -\\$2 -.. -.de EX -.TP 20 -\\fB\\$1\\fR -# \\$2 -.. -.SH OPTIONS -.TP 5 -.B \-1 -# Suppress column 1 (lines present only in \fIfile1\fP) -.TP 5 -.B \-2 -# Suppress column 2 (lines present only in \fIfile2\fP) -.TP 5 -.B \-3 -# Suppress column 3 (lines present in both files) -.SH EXAMPLES -.TP 20 -.B comm file1 file2 -# Print all three columns -.TP 20 -.B comm \-12 file1 file2 -# Print only lines common to both files -.SH DESCRIPTION -.PP -Two sorted files are read and compared. -A three column listing is produced. -Files only in -.I file1 -are in column 1; -files only in -.I file2 -are in column 2; -files common to both files are in column 3. -The file name \- means \fIstdin\fR. -.SH "SEE ALSO" -.BR cmp (1), -.BR diff (1), -.BR sort (1). diff --git a/releasetools/nbsd_ports b/releasetools/nbsd_ports index e5a7b2644..7fe3b0f83 100644 --- a/releasetools/nbsd_ports +++ b/releasetools/nbsd_ports @@ -154,6 +154,7 @@ 2012/10/17 12:00:00,usr.bin/cksum 2012/10/17 12:00:00,usr.bin/col 2013/10/16 12:00:00,usr.bin/column +2012/10/17 12:00:00,usr.bin/comm 2012/10/17 12:00:00,usr.bin/ctags 2013/10/14 12:00:00,usr.bin/cut 2012/10/17 12:00:00,usr.bin/dirname diff --git a/usr.bin/Makefile b/usr.bin/Makefile index 7d602413b..5058afbaf 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -7,7 +7,7 @@ SUBDIR= asa \ banner basename bdes \ bzip2 bzip2recover \ cal chpass cksum \ - col column ctags cut \ + col column comm ctags cut \ dirname du \ env expand \ finger from \ diff --git a/usr.bin/comm/Makefile b/usr.bin/comm/Makefile new file mode 100644 index 000000000..5f3841c59 --- /dev/null +++ b/usr.bin/comm/Makefile @@ -0,0 +1,6 @@ +# $NetBSD: Makefile,v 1.3 1995/03/26 09:25:49 glass Exp $ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 + +PROG= comm + +.include diff --git a/usr.bin/comm/comm.1 b/usr.bin/comm/comm.1 new file mode 100644 index 000000000..3e614a64e --- /dev/null +++ b/usr.bin/comm/comm.1 @@ -0,0 +1,103 @@ +.\" $NetBSD: comm.1,v 1.11 2009/03/09 19:24:32 joerg Exp $ +.\" +.\" Copyright (c) 1989, 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" 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. +.\" +.\" @(#)comm.1 8.1 (Berkeley) 6/6/93 +.\" +.Dd June 6, 1993 +.Dt COMM 1 +.Os +.Sh NAME +.Nm comm +.Nd select or reject lines common to two files +.Sh SYNOPSIS +.Nm +.Op Fl 123f +.Ar file1 file2 +.Sh DESCRIPTION +The +.Nm +utility reads +.Ar file1 +and +.Ar file2 , +which should be +sorted lexically, and produces three text +columns as output: lines only in +.Ar file1 ; +lines only in +.Ar file2 ; +and lines in both files. +.Pp +The filename ``-'' means the standard input. +.Pp +The following options are available: +.Bl -tag -width Ds +.It Fl 1 +Suppress printing of column 1. +.It Fl 2 +Suppress printing of column 2. +.It Fl 3 +Suppress printing of column 3. +.It Fl f +Fold case in line comparisons. +.El +.Pp +Each column will have a number of tab characters prepended to it +equal to the number of lower numbered columns that are being printed. +For example, if column number two is being suppressed, lines printed +in column number one will not have any tabs preceding them, and lines +printed in column number three will have one. +.Pp +.Nm +assumes that the files are lexically sorted; all characters +participate in line comparisons. +.\" .Sh ENVIRONMENT +.\" .Bl -tag -width indent +.\" .It Ev LANG +.\" .It Ev LC_ALL +.\" .It Ev LC_CTYPE +.\" .It Ev LC_COLLATE +.\" .It Ev LC_MESSAGES +.\" .El +.Sh EXIT STATUS +.Nm +exits 0 on success, \*[Gt]0 if an error occurred. +.Sh SEE ALSO +.Xr cmp 1 , +.Xr diff 1 , +.Xr sort 1 , +.Xr uniq 1 +.Sh STANDARDS +The +.Nm +utility conforms to +.St -p1003.2-92 . diff --git a/usr.bin/comm/comm.c b/usr.bin/comm/comm.c new file mode 100644 index 000000000..c1416e2db --- /dev/null +++ b/usr.bin/comm/comm.c @@ -0,0 +1,213 @@ +/* $NetBSD: comm.c,v 1.20 2012/09/05 04:01:23 simonb Exp $ */ + +/* + * Copyright (c) 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Case Larsen. + * + * 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 +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)comm.c 8.4 (Berkeley) 5/4/95"; +#endif +__RCSID("$NetBSD: comm.c,v 1.20 2012/09/05 04:01:23 simonb Exp $"); +#endif /* not lint */ + +#include +#include +#include +#include +#include +#include +#include + +#define MAXLINELEN (LINE_MAX + 1) + +static const char *tabs[] = { "", "\t", "\t\t" }; + +static FILE *file(const char *); +static void show(FILE *, const char *, char *); +__dead static void usage(void); +static char *getnextln(char *buf, FILE *); + +int +main(int argc, char **argv) +{ + int comp, file1done, file2done, read1, read2; + int ch, flag1, flag2, flag3; + FILE *fp1, *fp2; + const char *col1, *col2, *col3, **p; + char line1[MAXLINELEN], line2[MAXLINELEN]; + int (*compare)(const char*,const char*); + + (void)setlocale(LC_ALL, ""); + + file1done = file2done = 0; + flag1 = flag2 = flag3 = 1; + compare = strcoll; + while ((ch = getopt(argc, argv, "123f")) != -1) + switch(ch) { + case '1': + flag1 = 0; + break; + case '2': + flag2 = 0; + break; + case '3': + flag3 = 0; + break; + case 'f': + compare = strcasecmp; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc != 2) + usage(); + + fp1 = file(argv[0]); + fp2 = file(argv[1]); + + /* for each column printed, add another tab offset */ + p = tabs; + col1 = col2 = col3 = NULL; + if (flag1) + col1 = *p++; + if (flag2) + col2 = *p++; + if (flag3) + col3 = *p; + + for (read1 = read2 = 1;;) { + /* read next line, check for EOF */ + if (read1) + file1done = !getnextln(line1, fp1); + if (read2) + file2done = !getnextln(line2, fp2); + + /* if one file done, display the rest of the other file */ + if (file1done) { + if (!file2done && col2) + show(fp2, col2, line2); + break; + } + if (file2done) { + if (!file1done && col1) + show(fp1, col1, line1); + break; + } + + /* lines are the same */ + if (!(comp = compare(line1, line2))) { + read1 = read2 = 1; + if (col3) + if (printf("%s%s\n", col3, line1) < 0) + break; + continue; + } + + /* lines are different */ + if (comp < 0) { + read1 = 1; + read2 = 0; + if (col1) + if (printf("%s%s\n", col1, line1) < 0) + break; + } else { + read1 = 0; + read2 = 1; + if (col2) + if (printf("%s%s\n", col2, line2) < 0) + break; + } + } + + if (ferror (stdout) || fclose (stdout) == EOF) + err(1, "stdout"); + + exit(0); +} + +static void +show(FILE *fp, const char *offset, char *buf) +{ + while (printf("%s%s\n", offset, buf) >= 0 && getnextln(buf, fp)) + ; +} + +static FILE * +file(const char *name) +{ + FILE *fp; + + if (!strcmp(name, "-")) + return (stdin); + if ((fp = fopen(name, "r")) == NULL) + err(1, "%s", name); + return (fp); +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "usage: comm [-123f] file1 file2\n"); + exit(1); +} + +static char * +getnextln(char *buf, FILE *fp) +{ + size_t i = 0; + int c; + + while ((c = getc(fp)) != '\n' && c != EOF) { + buf[i++] = c; + + if (i >= MAXLINELEN) + i--; /* consumes extra characters till newline */ + } + + if (c == EOF && !i) + return NULL; + + buf[i] = 0; + return buf; +} +