xref: /dragonfly/bin/ls/cmp.c (revision 6bd457ed)
1 /*
2  * Copyright (c) 1989, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Michael Fischbein.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * @(#)cmp.c	8.1 (Berkeley) 5/31/93
37  * $FreeBSD: src/bin/ls/cmp.c,v 1.16 2005/01/10 08:39:23 imp Exp $
38  * $DragonFly: src/bin/ls/cmp.c,v 1.5 2005/06/03 11:54:37 asmodai Exp $
39  */
40 
41 #include <sys/types.h>
42 #include <sys/stat.h>
43 
44 #include <fts.h>
45 #include <string.h>
46 
47 #include "ls.h"
48 #include "extern.h"
49 
50 int
51 namecmp(const FTSENT *a, const FTSENT *b)
52 {
53 	return(strcoll(a->fts_name, b->fts_name));
54 }
55 
56 int
57 revnamecmp(const FTSENT *a, const FTSENT *b)
58 {
59 	return(strcoll(b->fts_name, a->fts_name));
60 }
61 
62 int
63 modcmp(const FTSENT *a, const FTSENT *b)
64 {
65 	if (b->fts_statp->st_mtimespec.tv_sec >
66 	    a->fts_statp->st_mtimespec.tv_sec)
67 		return(1);
68 	if (b->fts_statp->st_mtimespec.tv_sec <
69 	    a->fts_statp->st_mtimespec.tv_sec)
70 		return(-1);
71 	if (b->fts_statp->st_mtimespec.tv_nsec >
72 	    a->fts_statp->st_mtimespec.tv_nsec)
73 		return(1);
74 	if (b->fts_statp->st_mtimespec.tv_nsec <
75 	    a->fts_statp->st_mtimespec.tv_nsec)
76 		return(-1);
77 	return(strcoll(a->fts_name, b->fts_name));
78 }
79 
80 int
81 revmodcmp(const FTSENT *a, const FTSENT *b)
82 {
83 	return(modcmp(b, a));
84 }
85 
86 int
87 acccmp(const FTSENT *a, const FTSENT *b)
88 {
89 	if (b->fts_statp->st_atimespec.tv_sec >
90 	    a->fts_statp->st_atimespec.tv_sec)
91 		return(1);
92 	if (b->fts_statp->st_atimespec.tv_sec <
93 	    a->fts_statp->st_atimespec.tv_sec)
94 		return(-1);
95 	if (b->fts_statp->st_atimespec.tv_nsec >
96 	    a->fts_statp->st_atimespec.tv_nsec)
97 		return(1);
98 	if (b->fts_statp->st_atimespec.tv_nsec <
99 	    a->fts_statp->st_atimespec.tv_nsec)
100 		return(-1);
101 	return(strcoll(a->fts_name, b->fts_name));
102 }
103 
104 int
105 revacccmp(const FTSENT *a, const FTSENT *b)
106 {
107 	return(acccmp(b, a));
108 }
109 
110 int
111 statcmp(const FTSENT *a, const FTSENT *b)
112 {
113 	if (b->fts_statp->st_ctimespec.tv_sec >
114 	    a->fts_statp->st_ctimespec.tv_sec)
115 		return(1);
116 	if (b->fts_statp->st_ctimespec.tv_sec <
117 	    a->fts_statp->st_ctimespec.tv_sec)
118 		return(-1);
119 	if (b->fts_statp->st_ctimespec.tv_nsec >
120 	    a->fts_statp->st_ctimespec.tv_nsec)
121 		return(1);
122 	if (b->fts_statp->st_ctimespec.tv_nsec <
123 	    a->fts_statp->st_ctimespec.tv_nsec)
124 		return(-1);
125 	return(strcoll(a->fts_name, b->fts_name));
126 }
127 
128 int
129 revstatcmp(const FTSENT *a, const FTSENT *b)
130 {
131 	return(statcmp(b, a));
132 }
133