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cmp.c revision 1.7 
      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 
     37 #ifndef lint
     38 /*static char sccsid[] = "from: @(#)cmp.c	8.1 (Berkeley) 5/31/93";*/
     39 static char *rcsid = "$Id: cmp.c,v 1.7 1994/09/23 06:14:43 mycroft Exp $";
     40 #endif /* not lint */
     41 
     42 #include <sys/types.h>
     43 #include <sys/stat.h>
     44 
     45 #include <fts.h>
     46 #include <string.h>
     47 
     48 #include "ls.h"
     49 #include "extern.h"
     50 
     51 int
     52 namecmp(a, b)
     53 	const FTSENT *a, *b;
     54 {
     55 	return (strcmp(a->fts_name, b->fts_name));
     56 }
     57 
     58 int
     59 revnamecmp(a, b)
     60 	const FTSENT *a, *b;
     61 {
     62 	return (strcmp(b->fts_name, a->fts_name));
     63 }
     64 
     65 int
     66 modcmp(a, b)
     67 	const FTSENT *a, *b;
     68 {
     69 	return (b->fts_statp->st_mtime - a->fts_statp->st_mtime);
     70 }
     71 
     72 int
     73 revmodcmp(a, b)
     74 	const FTSENT *a, *b;
     75 {
     76 	return (a->fts_statp->st_mtime - b->fts_statp->st_mtime);
     77 }
     78 
     79 int
     80 acccmp(a, b)
     81 	const FTSENT *a, *b;
     82 {
     83 	return (b->fts_statp->st_atime - a->fts_statp->st_atime);
     84 }
     85 
     86 int
     87 revacccmp(a, b)
     88 	const FTSENT *a, *b;
     89 {
     90 	return (a->fts_statp->st_atime - b->fts_statp->st_atime);
     91 }
     92 
     93 int
     94 statcmp(a, b)
     95 	const FTSENT *a, *b;
     96 {
     97 	return (b->fts_statp->st_ctime - a->fts_statp->st_ctime);
     98 }
     99 
    100 int
    101 revstatcmp(a, b)
    102 	const FTSENT *a, *b;
    103 {
    104 	return (a->fts_statp->st_ctime - b->fts_statp->st_ctime);
    105 }
    106 
    107 int
    108 sizecmp(a, b)
    109 	const FTSENT *a, *b;
    110 {
    111 	if (b->fts_statp->st_size > a->fts_statp->st_size)
    112 		return 1;
    113 	if (b->fts_statp->st_size < a->fts_statp->st_size)
    114 		return -1;
    115 	return 0;
    116 }
    117 
    118 int
    119 revsizecmp(a, b)
    120 	const FTSENT *a, *b;
    121 {
    122 	if (a->fts_statp->st_size > b->fts_statp->st_size)
    123 		return 1;
    124 	if (a->fts_statp->st_size < b->fts_statp->st_size)
    125 		return -1;
    126 	return 0;
    127 }
    128