xref: /freebsd/bin/ls/cmp.c (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1989, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Michael Fischbein.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #if 0
36 #ifndef lint
37 static char sccsid[] = "@(#)cmp.c	8.1 (Berkeley) 5/31/93";
38 #endif /* not lint */
39 #endif
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
42 
43 
44 #include <sys/types.h>
45 #include <sys/stat.h>
46 
47 #include <fts.h>
48 #include <string.h>
49 
50 #include "ls.h"
51 #include "extern.h"
52 
53 int
54 namecmp(const FTSENT *a, const FTSENT *b)
55 {
56 
57 	return (strcoll(a->fts_name, b->fts_name));
58 }
59 
60 int
61 revnamecmp(const FTSENT *a, const FTSENT *b)
62 {
63 
64 	return (strcoll(b->fts_name, a->fts_name));
65 }
66 
67 int
68 modcmp(const FTSENT *a, const FTSENT *b)
69 {
70 
71 	if (b->fts_statp->st_mtim.tv_sec >
72 	    a->fts_statp->st_mtim.tv_sec)
73 		return (1);
74 	if (b->fts_statp->st_mtim.tv_sec <
75 	    a->fts_statp->st_mtim.tv_sec)
76 		return (-1);
77 	if (b->fts_statp->st_mtim.tv_nsec >
78 	    a->fts_statp->st_mtim.tv_nsec)
79 		return (1);
80 	if (b->fts_statp->st_mtim.tv_nsec <
81 	    a->fts_statp->st_mtim.tv_nsec)
82 		return (-1);
83 	if (f_samesort)
84 		return (strcoll(b->fts_name, a->fts_name));
85 	else
86 		return (strcoll(a->fts_name, b->fts_name));
87 }
88 
89 int
90 revmodcmp(const FTSENT *a, const FTSENT *b)
91 {
92 
93 	return (modcmp(b, a));
94 }
95 
96 int
97 acccmp(const FTSENT *a, const FTSENT *b)
98 {
99 
100 	if (b->fts_statp->st_atim.tv_sec >
101 	    a->fts_statp->st_atim.tv_sec)
102 		return (1);
103 	if (b->fts_statp->st_atim.tv_sec <
104 	    a->fts_statp->st_atim.tv_sec)
105 		return (-1);
106 	if (b->fts_statp->st_atim.tv_nsec >
107 	    a->fts_statp->st_atim.tv_nsec)
108 		return (1);
109 	if (b->fts_statp->st_atim.tv_nsec <
110 	    a->fts_statp->st_atim.tv_nsec)
111 		return (-1);
112 	if (f_samesort)
113 		return (strcoll(b->fts_name, a->fts_name));
114 	else
115 		return (strcoll(a->fts_name, b->fts_name));
116 }
117 
118 int
119 revacccmp(const FTSENT *a, const FTSENT *b)
120 {
121 
122 	return (acccmp(b, a));
123 }
124 
125 int
126 birthcmp(const FTSENT *a, const FTSENT *b)
127 {
128 
129 	if (b->fts_statp->st_birthtim.tv_sec >
130 	    a->fts_statp->st_birthtim.tv_sec)
131 		return (1);
132 	if (b->fts_statp->st_birthtim.tv_sec <
133 	    a->fts_statp->st_birthtim.tv_sec)
134 		return (-1);
135 	if (b->fts_statp->st_birthtim.tv_nsec >
136 	    a->fts_statp->st_birthtim.tv_nsec)
137 		return (1);
138 	if (b->fts_statp->st_birthtim.tv_nsec <
139 	    a->fts_statp->st_birthtim.tv_nsec)
140 		return (-1);
141 	if (f_samesort)
142 		return (strcoll(b->fts_name, a->fts_name));
143 	else
144 		return (strcoll(a->fts_name, b->fts_name));
145 }
146 
147 int
148 revbirthcmp(const FTSENT *a, const FTSENT *b)
149 {
150 
151 	return (birthcmp(b, a));
152 }
153 
154 int
155 statcmp(const FTSENT *a, const FTSENT *b)
156 {
157 
158 	if (b->fts_statp->st_ctim.tv_sec >
159 	    a->fts_statp->st_ctim.tv_sec)
160 		return (1);
161 	if (b->fts_statp->st_ctim.tv_sec <
162 	    a->fts_statp->st_ctim.tv_sec)
163 		return (-1);
164 	if (b->fts_statp->st_ctim.tv_nsec >
165 	    a->fts_statp->st_ctim.tv_nsec)
166 		return (1);
167 	if (b->fts_statp->st_ctim.tv_nsec <
168 	    a->fts_statp->st_ctim.tv_nsec)
169 		return (-1);
170 	if (f_samesort)
171 		return (strcoll(b->fts_name, a->fts_name));
172 	else
173 		return (strcoll(a->fts_name, b->fts_name));
174 }
175 
176 int
177 revstatcmp(const FTSENT *a, const FTSENT *b)
178 {
179 
180 	return (statcmp(b, a));
181 }
182 
183 int
184 sizecmp(const FTSENT *a, const FTSENT *b)
185 {
186 
187 	if (b->fts_statp->st_size > a->fts_statp->st_size)
188 		return (1);
189 	if (b->fts_statp->st_size < a->fts_statp->st_size)
190 		return (-1);
191 	return (strcoll(a->fts_name, b->fts_name));
192 }
193 
194 int
195 revsizecmp(const FTSENT *a, const FTSENT *b)
196 {
197 
198 	return (sizecmp(b, a));
199 }
200