freebsd-nq/bin/ls/cmp.c
Greg Lehey 9aa68a3ffa Add y flag and environment variable LS_SAMESORT to specify the same
sorting order for time and name with the -t option.  IEEE Std 1003.2
(POSIX.2) mandates that the -t option sort in descending order, and
that if two files have the same timestamp, they should be sorted in
ascending order of their names.  The -r flag reverses both of these
sort orders, so they're never the same.  This creates significant
problems for sequentially named files stored on FAT file systems,
where it can be impossible to list them in the order in which they
were created.

Add , (comma) option to print file sizes grouped and separated by
thousands using the non-monetary separator returned by localeconv(3),
typically a comma or period.

MFC after:  14 days
2012-11-08 00:24:26 +00:00

198 lines
4.8 KiB
C

/*-
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Michael Fischbein.
*
* 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.
* 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)cmp.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/stat.h>
#include <fts.h>
#include <string.h>
#include "ls.h"
#include "extern.h"
int
namecmp(const FTSENT *a, const FTSENT *b)
{
return (strcoll(a->fts_name, b->fts_name));
}
int
revnamecmp(const FTSENT *a, const FTSENT *b)
{
return (strcoll(b->fts_name, a->fts_name));
}
int
modcmp(const FTSENT *a, const FTSENT *b)
{
if (b->fts_statp->st_mtim.tv_sec >
a->fts_statp->st_mtim.tv_sec)
return (1);
if (b->fts_statp->st_mtim.tv_sec <
a->fts_statp->st_mtim.tv_sec)
return (-1);
if (b->fts_statp->st_mtim.tv_nsec >
a->fts_statp->st_mtim.tv_nsec)
return (1);
if (b->fts_statp->st_mtim.tv_nsec <
a->fts_statp->st_mtim.tv_nsec)
return (-1);
if (f_samesort)
return (strcoll(b->fts_name, a->fts_name));
else
return (strcoll(a->fts_name, b->fts_name));
}
int
revmodcmp(const FTSENT *a, const FTSENT *b)
{
return (modcmp(b, a));
}
int
acccmp(const FTSENT *a, const FTSENT *b)
{
if (b->fts_statp->st_atim.tv_sec >
a->fts_statp->st_atim.tv_sec)
return (1);
if (b->fts_statp->st_atim.tv_sec <
a->fts_statp->st_atim.tv_sec)
return (-1);
if (b->fts_statp->st_atim.tv_nsec >
a->fts_statp->st_atim.tv_nsec)
return (1);
if (b->fts_statp->st_atim.tv_nsec <
a->fts_statp->st_atim.tv_nsec)
return (-1);
if (f_samesort)
return (strcoll(b->fts_name, a->fts_name));
else
return (strcoll(a->fts_name, b->fts_name));
}
int
revacccmp(const FTSENT *a, const FTSENT *b)
{
return (acccmp(b, a));
}
int
birthcmp(const FTSENT *a, const FTSENT *b)
{
if (b->fts_statp->st_birthtim.tv_sec >
a->fts_statp->st_birthtim.tv_sec)
return (1);
if (b->fts_statp->st_birthtim.tv_sec <
a->fts_statp->st_birthtim.tv_sec)
return (-1);
if (b->fts_statp->st_birthtim.tv_nsec >
a->fts_statp->st_birthtim.tv_nsec)
return (1);
if (b->fts_statp->st_birthtim.tv_nsec <
a->fts_statp->st_birthtim.tv_nsec)
return (-1);
if (f_samesort)
return (strcoll(b->fts_name, a->fts_name));
else
return (strcoll(a->fts_name, b->fts_name));
}
int
revbirthcmp(const FTSENT *a, const FTSENT *b)
{
return (birthcmp(b, a));
}
int
statcmp(const FTSENT *a, const FTSENT *b)
{
if (b->fts_statp->st_ctim.tv_sec >
a->fts_statp->st_ctim.tv_sec)
return (1);
if (b->fts_statp->st_ctim.tv_sec <
a->fts_statp->st_ctim.tv_sec)
return (-1);
if (b->fts_statp->st_ctim.tv_nsec >
a->fts_statp->st_ctim.tv_nsec)
return (1);
if (b->fts_statp->st_ctim.tv_nsec <
a->fts_statp->st_ctim.tv_nsec)
return (-1);
if (f_samesort)
return (strcoll(b->fts_name, a->fts_name));
else
return (strcoll(a->fts_name, b->fts_name));
}
int
revstatcmp(const FTSENT *a, const FTSENT *b)
{
return (statcmp(b, a));
}
int
sizecmp(const FTSENT *a, const FTSENT *b)
{
if (b->fts_statp->st_size > a->fts_statp->st_size)
return (1);
if (b->fts_statp->st_size < a->fts_statp->st_size)
return (-1);
return (strcoll(a->fts_name, b->fts_name));
}
int
revsizecmp(const FTSENT *a, const FTSENT *b)
{
return (sizecmp(b, a));
}