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  * 3. 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  */
  35
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38
  39 #include <fts.h>
  40 #include <string.h>
  41
  42 #include "ls.h"
  43 #include "extern.h"
  44
  45 int
  46 namecmp(const FTSENT *a, const FTSENT *b)
  47 {
  48         return (strcoll(a->fts_name, b->fts_name));
  49 }
  50
  51 int
  52 revnamecmp(const FTSENT *a, const FTSENT *b)
  53 {
  54         return (strcoll(b->fts_name, a->fts_name));
  55 }
  56
  57 int
  58 modcmp(const FTSENT *a, const FTSENT *b)
  59 {
  60         if (b->fts_statp->st_mtimespec.tv_sec >
  61             a->fts_statp->st_mtimespec.tv_sec)
  62                 return (1);
  63         if (b->fts_statp->st_mtimespec.tv_sec <
  64             a->fts_statp->st_mtimespec.tv_sec)
  65                 return (-1);
  66         if (b->fts_statp->st_mtimespec.tv_nsec >
  67             a->fts_statp->st_mtimespec.tv_nsec)
  68                 return (1);
  69         if (b->fts_statp->st_mtimespec.tv_nsec <
  70             a->fts_statp->st_mtimespec.tv_nsec)
  71                 return (-1);
  72         return (strcoll(a->fts_name, b->fts_name));
  73 }
  74
  75 int
  76 revmodcmp(const FTSENT *a, const FTSENT *b)
  77 {
  78         return (modcmp(b, a));
  79 }
  80
  81 int
  82 acccmp(const FTSENT *a, const FTSENT *b)
  83 {
  84         if (b->fts_statp->st_atimespec.tv_sec >
  85             a->fts_statp->st_atimespec.tv_sec)
  86                 return (1);
  87         if (b->fts_statp->st_atimespec.tv_sec <
  88             a->fts_statp->st_atimespec.tv_sec)
  89                 return (-1);
  90         if (b->fts_statp->st_atimespec.tv_nsec >
  91             a->fts_statp->st_atimespec.tv_nsec)
  92                 return (1);
  93         if (b->fts_statp->st_atimespec.tv_nsec <
  94             a->fts_statp->st_atimespec.tv_nsec)
  95                 return (-1);
  96         return (strcoll(a->fts_name, b->fts_name));
  97 }
  98
  99 int
 100 revacccmp(const FTSENT *a, const FTSENT *b)
 101 {
 102         return (acccmp(b, a));
 103 }
 104
 105 int
 106 sizecmp(const FTSENT *a, const FTSENT *b)
 107 {
 108         if (b->fts_statp->st_size >
 109             a->fts_statp->st_size)
 110                 return (1);
 111         if (b->fts_statp->st_size <
 112             a->fts_statp->st_size)
 113                 return (-1);
 114         return (strcoll(a->fts_name, b->fts_name));
 115 }
 116
 117 int
 118 revsizecmp(const FTSENT *a, const FTSENT *b)
 119 {
 120         return (sizecmp(b, a));
 121 }
 122
 123 int
 124 statcmp(const FTSENT *a, const FTSENT *b)
 125 {
 126         if (b->fts_statp->st_ctimespec.tv_sec >
 127             a->fts_statp->st_ctimespec.tv_sec)
 128                 return (1);
 129         if (b->fts_statp->st_ctimespec.tv_sec <
 130             a->fts_statp->st_ctimespec.tv_sec)
 131                 return (-1);
 132         if (b->fts_statp->st_ctimespec.tv_nsec >
 133             a->fts_statp->st_ctimespec.tv_nsec)
 134                 return (1);
 135         if (b->fts_statp->st_ctimespec.tv_nsec <
 136             a->fts_statp->st_ctimespec.tv_nsec)
 137                 return (-1);
 138         return (strcoll(a->fts_name, b->fts_name));
 139 }
 140
 141 int
 142 revstatcmp(const FTSENT *a, const FTSENT *b)
 143 {
 144         return (statcmp(b, a));
 145 }