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authorKiyoshi Aman <kiyoshi.aman+adelie@gmail.com>2019-02-01 22:55:37 +0000
committerKiyoshi Aman <kiyoshi.aman+adelie@gmail.com>2019-02-03 18:22:05 -0600
commit5b57d28ffb6e1ef86b50f7d05d977826eae89bfe (patch)
tree154a22fe556b49e6927197336f8bf91b12eacd5e /bin/ls/cmp.c
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diff --git a/bin/ls/cmp.c b/bin/ls/cmp.c
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+/* $NetBSD: cmp.c,v 1.17 2003/08/07 09:05:14 agc Exp $ */
+
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Michael Fischbein.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)cmp.c 8.1 (Berkeley) 5/31/93";
+#else
+__RCSID("$NetBSD: cmp.c,v 1.17 2003/08/07 09:05:14 agc Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <fts.h>
+#include <string.h>
+
+#include "ls.h"
+#include "extern.h"
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) || \
+ defined(_XOPEN_SOURCE) || defined(__NetBSD__)
+#define ATIMENSEC_CMP(x, op, y) ((x)->st_atimensec op (y)->st_atimensec)
+#define CTIMENSEC_CMP(x, op, y) ((x)->st_ctimensec op (y)->st_ctimensec)
+#define MTIMENSEC_CMP(x, op, y) ((x)->st_mtimensec op (y)->st_mtimensec)
+#else
+#define ATIMENSEC_CMP(x, op, y) \
+ ((x)->st_atimespec.tv_nsec op (y)->st_atimespec.tv_nsec)
+#define CTIMENSEC_CMP(x, op, y) \
+ ((x)->st_ctimespec.tv_nsec op (y)->st_ctimespec.tv_nsec)
+#define MTIMENSEC_CMP(x, op, y) \
+ ((x)->st_mtimespec.tv_nsec op (y)->st_mtimespec.tv_nsec)
+#endif
+
+int
+namecmp(const FTSENT *a, const FTSENT *b)
+{
+
+ return (strcmp(a->fts_name, b->fts_name));
+}
+
+int
+revnamecmp(const FTSENT *a, const FTSENT *b)
+{
+
+ return (strcmp(b->fts_name, a->fts_name));
+}
+
+int
+modcmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_mtime > a->fts_statp->st_mtime)
+ return (1);
+ else if (b->fts_statp->st_mtime < a->fts_statp->st_mtime)
+ return (-1);
+ else if (MTIMENSEC_CMP(b->fts_statp, >, a->fts_statp))
+ return (1);
+ else if (MTIMENSEC_CMP(b->fts_statp, <, a->fts_statp))
+ return (-1);
+ else
+ return (namecmp(a, b));
+}
+
+int
+revmodcmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_mtime > a->fts_statp->st_mtime)
+ return (-1);
+ else if (b->fts_statp->st_mtime < a->fts_statp->st_mtime)
+ return (1);
+ else if (MTIMENSEC_CMP(b->fts_statp, >, a->fts_statp))
+ return (-1);
+ else if (MTIMENSEC_CMP(b->fts_statp, <, a->fts_statp))
+ return (1);
+ else
+ return (revnamecmp(a, b));
+}
+
+int
+acccmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_atime > a->fts_statp->st_atime)
+ return (1);
+ else if (b->fts_statp->st_atime < a->fts_statp->st_atime)
+ return (-1);
+ else if (ATIMENSEC_CMP(b->fts_statp, >, a->fts_statp))
+ return (1);
+ else if (ATIMENSEC_CMP(b->fts_statp, <, a->fts_statp))
+ return (-1);
+ else
+ return (namecmp(a, b));
+}
+
+int
+revacccmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_atime > a->fts_statp->st_atime)
+ return (-1);
+ else if (b->fts_statp->st_atime < a->fts_statp->st_atime)
+ return (1);
+ else if (ATIMENSEC_CMP(b->fts_statp, >, a->fts_statp))
+ return (-1);
+ else if (ATIMENSEC_CMP(b->fts_statp, <, a->fts_statp))
+ return (1);
+ else
+ return (revnamecmp(a, b));
+}
+
+int
+statcmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_ctime > a->fts_statp->st_ctime)
+ return (1);
+ else if (b->fts_statp->st_ctime < a->fts_statp->st_ctime)
+ return (-1);
+ else if (CTIMENSEC_CMP(b->fts_statp, >, a->fts_statp))
+ return (1);
+ else if (CTIMENSEC_CMP(b->fts_statp, <, a->fts_statp))
+ return (-1);
+ else
+ return (namecmp(a, b));
+}
+
+int
+revstatcmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_ctime > a->fts_statp->st_ctime)
+ return (-1);
+ else if (b->fts_statp->st_ctime < a->fts_statp->st_ctime)
+ return (1);
+ else if (CTIMENSEC_CMP(b->fts_statp, >, a->fts_statp))
+ return (-1);
+ else if (CTIMENSEC_CMP(b->fts_statp, <, a->fts_statp))
+ return (1);
+ else
+ return (revnamecmp(a, b));
+}
+
+int
+sizecmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_size > a->fts_statp->st_size)
+ return (1);
+ if (b->fts_statp->st_size < a->fts_statp->st_size)
+ return (-1);
+ else
+ return (namecmp(a, b));
+}
+
+int
+revsizecmp(const FTSENT *a, const FTSENT *b)
+{
+
+ if (b->fts_statp->st_size > a->fts_statp->st_size)
+ return (-1);
+ if (b->fts_statp->st_size < a->fts_statp->st_size)
+ return (1);
+ else
+ return (revnamecmp(a, b));
+}