1 /* $NetBSD: ls.c,v 1.21 2011/08/31 16:24:57 plunky 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/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "from: @(#)ls.c 8.1 (Berkeley) 6/6/93";
36 #else
37 __RCSID("$NetBSD: ls.c,v 1.21 2011/08/31 16:24:57 plunky Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <sys/param.h>
42 #include <sys/stat.h>
43
44 #include <err.h>
45 #include <errno.h>
46 #include <fts.h>
47 #include <grp.h>
48 #include <pwd.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #include <string.h>
52 #include <time.h>
53 #include <tzfile.h>
54 #include <unistd.h>
55
56 #include "find.h"
57
58 /* Derived from the print routines in the ls(1) source code. */
59
60 static void printlink(char *);
61 static void printtime(time_t);
62
63 void
printlong(char * name,char * accpath,struct stat * sb)64 printlong(char *name, /* filename to print */
65 char *accpath, /* current valid path to filename */
66 struct stat *sb) /* stat buffer */
67 {
68 char modep[15];
69
70 (void)printf("%7lu %6lld ", (u_long)sb->st_ino,
71 (long long)sb->st_blocks);
72 (void)strmode(sb->st_mode, modep);
73 (void)printf("%s %3lu %-*s %-*s ", modep, (unsigned long)sb->st_nlink,
74 LOGIN_NAME_MAX, user_from_uid(sb->st_uid, 0), LOGIN_NAME_MAX,
75 group_from_gid(sb->st_gid, 0));
76
77 if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode))
78 (void)printf("%3llu,%5llu ",
79 (unsigned long long)major(sb->st_rdev),
80 (unsigned long long)minor(sb->st_rdev));
81 else
82 (void)printf("%9lld ", (long long)sb->st_size);
83 printtime(sb->st_mtime);
84 (void)printf("%s", name);
85 if (S_ISLNK(sb->st_mode))
86 printlink(accpath);
87 (void)putchar('\n');
88 }
89
90 static void
printtime(time_t ftime)91 printtime(time_t ftime)
92 {
93 int i;
94 char *longstring;
95
96 longstring = ctime(&ftime);
97 for (i = 4; i < 11; ++i)
98 (void)putchar(longstring[i]);
99
100 #define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY)
101 if (ftime + SIXMONTHS > time(NULL))
102 for (i = 11; i < 16; ++i)
103 (void)putchar(longstring[i]);
104 else {
105 (void)putchar(' ');
106 for (i = 20; i < 24; ++i)
107 (void)putchar(longstring[i]);
108 }
109 (void)putchar(' ');
110 }
111
112 static void
printlink(char * name)113 printlink(char *name)
114 {
115 int lnklen;
116 char path[MAXPATHLEN + 1];
117
118 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
119 warn("%s", name);
120 return;
121 }
122 path[lnklen] = '\0';
123 (void)printf(" -> %s", path);
124 }
125