1 /* $NetBSD: cmp.c,v 1.16 2000/07/29 03:46:14 lukem Exp $ */ 2 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)cmp.c 8.1 (Berkeley) 5/31/93"; 43 #else 44 __RCSID("$NetBSD: cmp.c,v 1.16 2000/07/29 03:46:14 lukem Exp $"); 45 #endif 46 #endif /* not lint */ 47 48 #include <sys/types.h> 49 #include <sys/stat.h> 50 51 #include <fts.h> 52 #include <string.h> 53 54 #include "ls.h" 55 #include "extern.h" 56 57 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) || \ 58 defined(_XOPEN_SOURCE) || defined(__NetBSD__) 59 #define ATIMENSEC_CMP(x, op, y) ((x)->st_atimensec op (y)->st_atimensec) 60 #define CTIMENSEC_CMP(x, op, y) ((x)->st_ctimensec op (y)->st_ctimensec) 61 #define MTIMENSEC_CMP(x, op, y) ((x)->st_mtimensec op (y)->st_mtimensec) 62 #else 63 #define ATIMENSEC_CMP(x, op, y) \ 64 ((x)->st_atimespec.tv_nsec op (y)->st_atimespec.tv_nsec) 65 #define CTIMENSEC_CMP(x, op, y) \ 66 ((x)->st_ctimespec.tv_nsec op (y)->st_ctimespec.tv_nsec) 67 #define MTIMENSEC_CMP(x, op, y) \ 68 ((x)->st_mtimespec.tv_nsec op (y)->st_mtimespec.tv_nsec) 69 #endif 70 71 int 72 namecmp(const FTSENT *a, const FTSENT *b) 73 { 74 75 return (strcmp(a->fts_name, b->fts_name)); 76 } 77 78 int 79 revnamecmp(const FTSENT *a, const FTSENT *b) 80 { 81 82 return (strcmp(b->fts_name, a->fts_name)); 83 } 84 85 int 86 modcmp(const FTSENT *a, const FTSENT *b) 87 { 88 89 if (b->fts_statp->st_mtime > a->fts_statp->st_mtime) 90 return (1); 91 else if (b->fts_statp->st_mtime < a->fts_statp->st_mtime) 92 return (-1); 93 else if (MTIMENSEC_CMP(b->fts_statp, >, a->fts_statp)) 94 return (1); 95 else if (MTIMENSEC_CMP(b->fts_statp, <, a->fts_statp)) 96 return (-1); 97 else 98 return (namecmp(a, b)); 99 } 100 101 int 102 revmodcmp(const FTSENT *a, const FTSENT *b) 103 { 104 105 if (b->fts_statp->st_mtime > a->fts_statp->st_mtime) 106 return (-1); 107 else if (b->fts_statp->st_mtime < a->fts_statp->st_mtime) 108 return (1); 109 else if (MTIMENSEC_CMP(b->fts_statp, >, a->fts_statp)) 110 return (-1); 111 else if (MTIMENSEC_CMP(b->fts_statp, <, a->fts_statp)) 112 return (1); 113 else 114 return (revnamecmp(a, b)); 115 } 116 117 int 118 acccmp(const FTSENT *a, const FTSENT *b) 119 { 120 121 if (b->fts_statp->st_atime > a->fts_statp->st_atime) 122 return (1); 123 else if (b->fts_statp->st_atime < a->fts_statp->st_atime) 124 return (-1); 125 else if (ATIMENSEC_CMP(b->fts_statp, >, a->fts_statp)) 126 return (1); 127 else if (ATIMENSEC_CMP(b->fts_statp, <, a->fts_statp)) 128 return (-1); 129 else 130 return (namecmp(a, b)); 131 } 132 133 int 134 revacccmp(const FTSENT *a, const FTSENT *b) 135 { 136 137 if (b->fts_statp->st_atime > a->fts_statp->st_atime) 138 return (-1); 139 else if (b->fts_statp->st_atime < a->fts_statp->st_atime) 140 return (1); 141 else if (ATIMENSEC_CMP(b->fts_statp, >, a->fts_statp)) 142 return (-1); 143 else if (ATIMENSEC_CMP(b->fts_statp, <, a->fts_statp)) 144 return (1); 145 else 146 return (revnamecmp(a, b)); 147 } 148 149 int 150 statcmp(const FTSENT *a, const FTSENT *b) 151 { 152 153 if (b->fts_statp->st_ctime > a->fts_statp->st_ctime) 154 return (1); 155 else if (b->fts_statp->st_ctime < a->fts_statp->st_ctime) 156 return (-1); 157 else if (CTIMENSEC_CMP(b->fts_statp, >, a->fts_statp)) 158 return (1); 159 else if (CTIMENSEC_CMP(b->fts_statp, <, a->fts_statp)) 160 return (-1); 161 else 162 return (namecmp(a, b)); 163 } 164 165 int 166 revstatcmp(const FTSENT *a, const FTSENT *b) 167 { 168 169 if (b->fts_statp->st_ctime > a->fts_statp->st_ctime) 170 return (-1); 171 else if (b->fts_statp->st_ctime < a->fts_statp->st_ctime) 172 return (1); 173 else if (CTIMENSEC_CMP(b->fts_statp, >, a->fts_statp)) 174 return (-1); 175 else if (CTIMENSEC_CMP(b->fts_statp, <, a->fts_statp)) 176 return (1); 177 else 178 return (revnamecmp(a, b)); 179 } 180 181 int 182 sizecmp(const FTSENT *a, const FTSENT *b) 183 { 184 185 if (b->fts_statp->st_size > a->fts_statp->st_size) 186 return (1); 187 if (b->fts_statp->st_size < a->fts_statp->st_size) 188 return (-1); 189 else 190 return (namecmp(a, b)); 191 } 192 193 int 194 revsizecmp(const FTSENT *a, const FTSENT *b) 195 { 196 197 if (b->fts_statp->st_size > a->fts_statp->st_size) 198 return (-1); 199 if (b->fts_statp->st_size < a->fts_statp->st_size) 200 return (1); 201 else 202 return (revnamecmp(a, b)); 203 } 204