ls.c revision 207705
1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)ls.c 8.1 (Berkeley) 6/6/93"; 37#endif 38#endif /* not lint */ 39 40#include <sys/cdefs.h> 41__FBSDID("$FreeBSD: head/usr.bin/find/ls.c 207705 2010-05-06 17:06:36Z delphij $"); 42 43#include <sys/param.h> 44#include <sys/stat.h> 45 46#include <err.h> 47#include <errno.h> 48#include <fts.h> 49#include <grp.h> 50#include <inttypes.h> 51#include <langinfo.h> 52#include <pwd.h> 53#include <stdio.h> 54#include <string.h> 55#include <time.h> 56#include <unistd.h> 57 58#include "find.h" 59 60/* Derived from the print routines in the ls(1) source code. */ 61 62static void printlink(char *); 63static void printtime(time_t); 64 65void 66printlong(char *name, char *accpath, struct stat *sb) 67{ 68 char modep[15]; 69 70 (void)printf("%6lu %8"PRId64" ", (u_long) sb->st_ino, sb->st_blocks); 71 (void)strmode(sb->st_mode, modep); 72 (void)printf("%s %3u %-*s %-*s ", modep, sb->st_nlink, MAXLOGNAME - 1, 73 user_from_uid(sb->st_uid, 0), MAXLOGNAME - 1, 74 group_from_gid(sb->st_gid, 0)); 75 76 if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode)) 77 (void)printf("%3d, %3d ", major(sb->st_rdev), 78 minor(sb->st_rdev)); 79 else 80 (void)printf("%8"PRId64" ", sb->st_size); 81 printtime(sb->st_mtime); 82 (void)printf("%s", name); 83 if (S_ISLNK(sb->st_mode)) 84 printlink(accpath); 85 (void)putchar('\n'); 86} 87 88static void 89printtime(time_t ftime) 90{ 91 char longstring[80]; 92 static time_t lnow; 93 const char *format; 94 static int d_first = -1; 95 96 if (d_first < 0) 97 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 98 if (lnow == 0) 99 lnow = time(NULL); 100 101#define SIXMONTHS ((365 / 2) * 86400) 102 if (ftime + SIXMONTHS > lnow && ftime < lnow + SIXMONTHS) 103 /* mmm dd hh:mm || dd mmm hh:mm */ 104 format = d_first ? "%e %b %R " : "%b %e %R "; 105 else 106 /* mmm dd yyyy || dd mmm yyyy */ 107 format = d_first ? "%e %b %Y " : "%b %e %Y "; 108 strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 109 fputs(longstring, stdout); 110} 111 112static void 113printlink(char *name) 114{ 115 int lnklen; 116 char path[MAXPATHLEN]; 117 118 if ((lnklen = readlink(name, path, MAXPATHLEN - 1)) == -1) { 119 warn("%s", name); 120 return; 121 } 122 path[lnklen] = '\0'; 123 (void)printf(" -> %s", path); 124} 125