freebsd-dev/usr.bin/find/ls.c

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/*
* 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. 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
#if 0
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static char sccsid[] = "@(#)ls.c 8.1 (Berkeley) 6/6/93";
#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
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#include <sys/param.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <grp.h>
#include <inttypes.h>
#include <langinfo.h>
#include <pwd.h>
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#include <stdio.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "find.h"
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/* Derived from the print routines in the ls(1) source code. */
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static void printlink(char *);
static void printtime(time_t);
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void
printlong(char *name, char *accpath, struct stat *sb)
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{
char modep[15];
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(void)printf("%6lu %4"PRId64" ", (u_long) sb->st_ino, sb->st_blocks);
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(void)strmode(sb->st_mode, modep);
(void)printf("%s %3u %-*s %-*s ", modep, sb->st_nlink, MAXLOGNAME - 1,
user_from_uid(sb->st_uid, 0), MAXLOGNAME - 1,
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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("%8"PRId64" ", sb->st_size);
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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)
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{
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char longstring[80];
static time_t lnow;
const char *format;
static int d_first = -1;
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if (d_first < 0)
d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
if (lnow == 0)
lnow = time(NULL);
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#define SIXMONTHS ((365 / 2) * 86400)
if (ftime + SIXMONTHS > lnow && ftime < lnow + SIXMONTHS)
/* mmm dd hh:mm || dd mmm hh:mm */
format = d_first ? "%e %b %R " : "%b %e %R ";
else
/* mmm dd yyyy || dd mmm yyyy */
format = d_first ? "%e %b %Y " : "%b %e %Y ";
strftime(longstring, sizeof(longstring), format, localtime(&ftime));
fputs(longstring, stdout);
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}
static void
printlink(char *name)
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{
int lnklen;
char path[MAXPATHLEN];
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if ((lnklen = readlink(name, path, MAXPATHLEN - 1)) == -1) {
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warn("%s", name);
return;
}
path[lnklen] = '\0';
(void)printf(" -> %s", path);
}