1 /* $OpenBSD: ls.c,v 1.12 2003/07/06 22:35:59 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 #ifndef lint
33 /*static char sccsid[] = "from: @(#)ls.c 8.1 (Berkeley) 6/6/93";*/
34 static char rcsid[] = "$OpenBSD: ls.c,v 1.12 2003/07/06 22:35:59 deraadt Exp $";
35 #endif /* not lint */
36
37 #include <sys/param.h>
38 #include <sys/stat.h>
39
40 #include <err.h>
41 #include <errno.h>
42 #include <stdio.h>
43 #include <string.h>
44 #include <time.h>
45 #include <tzfile.h>
46 #include <unistd.h>
47 #include <utmp.h>
48 #include <pwd.h>
49 #include <grp.h>
50 #include <fts.h>
51 #include "find.h"
52 #include "extern.h"
53
54 /* Derived from the print routines in the ls(1) source code. */
55
56 static void printlink(char *);
57 static void printtime(time_t);
58
59 #define NAME_WIDTH 8
60
61 void
printlong(char * name,char * accpath,struct stat * sb)62 printlong(char *name, char *accpath, struct stat *sb)
63 {
64 char modep[15];
65
66 (void)printf("%6u %4lld ", sb->st_ino, (long long)sb->st_blocks);
67 (void)strmode(sb->st_mode, modep);
68 (void)printf("%s %3u %-*.*s %-*.*s ", modep, sb->st_nlink,
69 NAME_WIDTH, UT_NAMESIZE, user_from_uid(sb->st_uid, 0),
70 NAME_WIDTH, UT_NAMESIZE, group_from_gid(sb->st_gid, 0));
71
72 if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode))
73 (void)printf("%3d, %3d ", major(sb->st_rdev),
74 minor(sb->st_rdev));
75 else
76 (void)printf("%8lld ", (long long)sb->st_size);
77 printtime(sb->st_mtime);
78 (void)printf("%s", name);
79 if (S_ISLNK(sb->st_mode))
80 printlink(accpath);
81 (void)putchar('\n');
82 }
83
84 static void
printtime(time_t ftime)85 printtime(time_t ftime)
86 {
87 int i;
88 char *longstring;
89
90 longstring = ctime(&ftime);
91 for (i = 4; i < 11; ++i)
92 (void)putchar(longstring[i]);
93
94 #define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY)
95 if (ftime + SIXMONTHS > time(NULL))
96 for (i = 11; i < 16; ++i)
97 (void)putchar(longstring[i]);
98 else {
99 (void)putchar(' ');
100 for (i = 20; i < 24; ++i)
101 (void)putchar(longstring[i]);
102 }
103 (void)putchar(' ');
104 }
105
106 static void
printlink(char * name)107 printlink(char *name)
108 {
109 int lnklen;
110 char path[MAXPATHLEN];
111
112 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
113 warn("%s", name);
114 return;
115 }
116 path[lnklen] = '\0';
117 (void)printf(" -> %s", path);
118 }
119