1 /* $OpenBSD: ls.c,v 1.13 2009/10/27 23:59:38 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/stat.h> 34 35 #include <err.h> 36 #include <errno.h> 37 #include <stdio.h> 38 #include <string.h> 39 #include <time.h> 40 #include <tzfile.h> 41 #include <unistd.h> 42 #include <utmp.h> 43 #include <pwd.h> 44 #include <grp.h> 45 #include <fts.h> 46 #include "find.h" 47 #include "extern.h" 48 49 /* Derived from the print routines in the ls(1) source code. */ 50 51 static void printlink(char *); 52 static void printtime(time_t); 53 54 #define NAME_WIDTH 8 55 56 void 57 printlong(char *name, char *accpath, struct stat *sb) 58 { 59 char modep[15]; 60 61 (void)printf("%6u %4lld ", sb->st_ino, (long long)sb->st_blocks); 62 (void)strmode(sb->st_mode, modep); 63 (void)printf("%s %3u %-*.*s %-*.*s ", modep, sb->st_nlink, 64 NAME_WIDTH, UT_NAMESIZE, user_from_uid(sb->st_uid, 0), 65 NAME_WIDTH, UT_NAMESIZE, group_from_gid(sb->st_gid, 0)); 66 67 if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode)) 68 (void)printf("%3d, %3d ", major(sb->st_rdev), 69 minor(sb->st_rdev)); 70 else 71 (void)printf("%8lld ", (long long)sb->st_size); 72 printtime(sb->st_mtime); 73 (void)printf("%s", name); 74 if (S_ISLNK(sb->st_mode)) 75 printlink(accpath); 76 (void)putchar('\n'); 77 } 78 79 static void 80 printtime(time_t ftime) 81 { 82 int i; 83 char *longstring; 84 85 longstring = ctime(&ftime); 86 for (i = 4; i < 11; ++i) 87 (void)putchar(longstring[i]); 88 89 #define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY) 90 if (ftime + SIXMONTHS > time(NULL)) 91 for (i = 11; i < 16; ++i) 92 (void)putchar(longstring[i]); 93 else { 94 (void)putchar(' '); 95 for (i = 20; i < 24; ++i) 96 (void)putchar(longstring[i]); 97 } 98 (void)putchar(' '); 99 } 100 101 static void 102 printlink(char *name) 103 { 104 int lnklen; 105 char path[MAXPATHLEN]; 106 107 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 108 warn("%s", name); 109 return; 110 } 111 path[lnklen] = '\0'; 112 (void)printf(" -> %s", path); 113 } 114