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/* $OpenBSD: ls.c,v 1.16 2015/01/16 06:40:07 deraadt Exp $ */
/*
* Copyright (c) 1989, 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/stat.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <tzfile.h>
#include <unistd.h>
#include <limits.h>
#include <utmp.h>
#include <pwd.h>
#include <grp.h>
#include <fts.h>
#include "find.h"
#include "extern.h"
/* Derived from the print routines in the ls(1) source code. */
static void printlink(char *);
static void printtime(time_t);
#define NAME_WIDTH 8
#define DATELEN 64
#define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY)
void
printlong(char *name, char *accpath, struct stat *sb)
{
char modep[15];
(void)printf("%6llu %4lld ", (unsigned long long)sb->st_ino,
(long long)sb->st_blocks);
(void)strmode(sb->st_mode, modep);
(void)printf("%s %3u %-*.*s %-*.*s ", modep, sb->st_nlink,
NAME_WIDTH, UT_NAMESIZE, user_from_uid(sb->st_uid, 0),
NAME_WIDTH, UT_NAMESIZE, group_from_gid(sb->st_gid, 0));
if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode))
(void)printf("%3d, %3d ", major(sb->st_rdev),
minor(sb->st_rdev));
else
(void)printf("%8lld ", (long long)sb->st_size);
printtime(sb->st_mtime);
(void)printf("%s", name);
if (S_ISLNK(sb->st_mode))
printlink(accpath);
(void)putchar('\n');
}
static void
printtime(time_t ftime)
{
char f_date[DATELEN];
static time_t now;
static int now_set = 0;
if (! now_set) {
now = time(NULL);
now_set = 1;
}
/*
* convert time to string, and print
*/
if (strftime(f_date, sizeof(f_date),
(ftime + SIXMONTHS <= now || ftime > now) ? "%b %e %Y" :
"%b %e %H:%M", localtime(&ftime)) == 0)
f_date[0] = '\0';
printf("%s ", f_date);
}
static void
printlink(char *name)
{
int lnklen;
char path[PATH_MAX];
if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
warn("%s", name);
return;
}
path[lnklen] = '\0';
(void)printf(" -> %s", path);
}
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