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/* $OpenBSD: ls.c,v 1.17 2015/03/15 00:41:28 millert Exp $ */ |
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/* |
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* Copyright (c) 1989, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <sys/stat.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <time.h> |
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#include <unistd.h> |
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#include <limits.h> |
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#include <utmp.h> |
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#include <pwd.h> |
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#include <grp.h> |
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#include <fts.h> |
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#include "find.h" |
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#include "extern.h" |
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/* Derived from the print routines in the ls(1) source code. */ |
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static void printlink(char *); |
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static void printtime(time_t); |
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#define NAME_WIDTH 8 |
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#define DATELEN 64 |
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void |
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printlong(char *name, char *accpath, struct stat *sb) |
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{ |
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char modep[15]; |
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(void)printf("%6llu %4lld ", (unsigned long long)sb->st_ino, |
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(long long)sb->st_blocks); |
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(void)strmode(sb->st_mode, modep); |
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(void)printf("%s %3u %-*.*s %-*.*s ", modep, sb->st_nlink, |
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NAME_WIDTH, UT_NAMESIZE, user_from_uid(sb->st_uid, 0), |
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NAME_WIDTH, UT_NAMESIZE, group_from_gid(sb->st_gid, 0)); |
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if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode)) |
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(void)printf("%3d, %3d ", major(sb->st_rdev), |
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minor(sb->st_rdev)); |
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else |
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(void)printf("%8lld ", (long long)sb->st_size); |
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printtime(sb->st_mtime); |
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(void)printf("%s", name); |
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if (S_ISLNK(sb->st_mode)) |
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printlink(accpath); |
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(void)putchar('\n'); |
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} |
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static void |
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printtime(time_t ftime) |
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{ |
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char f_date[DATELEN]; |
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static time_t now; |
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static int now_set = 0; |
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if (! now_set) { |
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now = time(NULL); |
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now_set = 1; |
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} |
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/* |
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* convert time to string, and print |
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*/ |
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if (strftime(f_date, sizeof(f_date), |
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(ftime + SIXMONTHS <= now || ftime > now) ? "%b %e %Y" : |
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"%b %e %H:%M", localtime(&ftime)) == 0) |
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f_date[0] = '\0'; |
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printf("%s ", f_date); |
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} |
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static void |
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printlink(char *name) |
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{ |
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int lnklen; |
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char path[PATH_MAX]; |
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if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { |
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warn("%s", name); |
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return; |
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} |
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path[lnklen] = '\0'; |
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(void)printf(" -> %s", path); |
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} |