bin/ls/cmp.c

   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  * 4. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * @(#)cmp.c    8.1 (Berkeley) 5/31/93
  33  * $FreeBSD: src/bin/ls/cmp.c,v 1.16 2005/01/10 08:39:23 imp Exp $
  34  * $DragonFly: src/bin/ls/cmp.c,v 1.7 2008/01/19 15:33:42 matthias Exp $
  35  */
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39
  40 #include <fts.h>
  41 #include <string.h>
  42
  43 #include "ls.h"
  44 #include "extern.h"
  45
  46 int
  47 namecmp(const FTSENT *a, const FTSENT *b)
  48 {
  49         return(strcoll(a->fts_name, b->fts_name));
  50 }
  51
  52 int
  53 revnamecmp(const FTSENT *a, const FTSENT *b)
  54 {
  55         return(strcoll(b->fts_name, a->fts_name));
  56 }
  57
  58 int
  59 modcmp(const FTSENT *a, const FTSENT *b)
  60 {
  61         if (b->fts_statp->st_mtimespec.tv_sec >
  62             a->fts_statp->st_mtimespec.tv_sec)
  63                 return(1);
  64         if (b->fts_statp->st_mtimespec.tv_sec <
  65             a->fts_statp->st_mtimespec.tv_sec)
  66                 return(-1);
  67         if (b->fts_statp->st_mtimespec.tv_nsec >
  68             a->fts_statp->st_mtimespec.tv_nsec)
  69                 return(1);
  70         if (b->fts_statp->st_mtimespec.tv_nsec <
  71             a->fts_statp->st_mtimespec.tv_nsec)
  72                 return(-1);
  73         return(strcoll(a->fts_name, b->fts_name));
  74 }
  75
  76 int
  77 revmodcmp(const FTSENT *a, const FTSENT *b)
  78 {
  79         return(modcmp(b, a));
  80 }
  81
  82 int
  83 acccmp(const FTSENT *a, const FTSENT *b)
  84 {
  85         if (b->fts_statp->st_atimespec.tv_sec >
  86             a->fts_statp->st_atimespec.tv_sec)
  87                 return(1);
  88         if (b->fts_statp->st_atimespec.tv_sec <
  89             a->fts_statp->st_atimespec.tv_sec)
  90                 return(-1);
  91         if (b->fts_statp->st_atimespec.tv_nsec >
  92             a->fts_statp->st_atimespec.tv_nsec)
  93                 return(1);
  94         if (b->fts_statp->st_atimespec.tv_nsec <
  95             a->fts_statp->st_atimespec.tv_nsec)
  96                 return(-1);
  97         return(strcoll(a->fts_name, b->fts_name));
  98 }
  99
 100 int
 101 revacccmp(const FTSENT *a, const FTSENT *b)
 102 {
 103         return(acccmp(b, a));
 104 }
 105
 106 int
 107 sizecmp(const FTSENT *a, const FTSENT *b)
 108 {
 109         if (b->fts_statp->st_size >
 110             a->fts_statp->st_size)
 111                 return(1);
 112         if (b->fts_statp->st_size <
 113             a->fts_statp->st_size)
 114                 return(-1);
 115         return(strcoll(a->fts_name, b->fts_name));
 116 }
 117
 118 int
 119 revsizecmp(const FTSENT *a, const FTSENT *b)
 120 {
 121         return(sizecmp(b, a));
 122 }
 123
 124 int
 125 statcmp(const FTSENT *a, const FTSENT *b)
 126 {
 127         if (b->fts_statp->st_ctimespec.tv_sec >
 128             a->fts_statp->st_ctimespec.tv_sec)
 129                 return(1);
 130         if (b->fts_statp->st_ctimespec.tv_sec <
 131             a->fts_statp->st_ctimespec.tv_sec)
 132                 return(-1);
 133         if (b->fts_statp->st_ctimespec.tv_nsec >
 134             a->fts_statp->st_ctimespec.tv_nsec)
 135                 return(1);
 136         if (b->fts_statp->st_ctimespec.tv_nsec <
 137             a->fts_statp->st_ctimespec.tv_nsec)
 138                 return(-1);
 139         return(strcoll(a->fts_name, b->fts_name));
 140 }
 141
 142 int
 143 revstatcmp(const FTSENT *a, const FTSENT *b)
 144 {
 145         return(statcmp(b, a));
 146 }