GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: bin/mv/rm.c Lines: 0 37 0.0 %
Date: 2017-11-07 Branches: 0 45 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: rm.c,v 1.11 2016/10/10 18:13:21 tedu Exp $	*/
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/*	$NetBSD: rm.c,v 1.19 1995/09/07 06:48:50 jtc Exp $	*/
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/*-
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 * Copyright (c) 1990, 1993, 1994
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/types.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fts.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static int eval;
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static void	checkdot(char **);
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static void	rm_tree(char **);
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int
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rmmain(int argc, char *argv[])
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{
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	checkdot(argv);
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	if (*argv)
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		rm_tree(argv);
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	return (eval);
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}
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static void
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rm_tree(char **argv)
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{
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	FTS *fts;
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	FTSENT *p;
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	int flags;
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	flags = FTS_PHYSICAL;
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	flags |= FTS_NOSTAT;
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	if (!(fts = fts_open(argv, flags, NULL)))
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		err(1, NULL);
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	while ((p = fts_read(fts)) != NULL) {
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		switch (p->fts_info) {
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		case FTS_DNR:
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			if (p->fts_errno != ENOENT) {
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				warnx("%s: %s",
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				    p->fts_path, strerror(p->fts_errno));
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				eval = 1;
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			}
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			continue;
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		case FTS_ERR:
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			errc(1, p->fts_errno, "%s", p->fts_path);
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		case FTS_D:
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			continue;
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		default:
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			break;
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		}
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		/*
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		 * If we can't read or search the directory, may still be
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		 * able to remove it.  Don't print out the un{read,search}able
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		 * message unless the remove fails.
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		 */
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		switch (p->fts_info) {
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		case FTS_DP:
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		case FTS_DNR:
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			if (!rmdir(p->fts_accpath) ||
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			    (errno == ENOENT))
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				continue;
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			break;
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		case FTS_F:
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		case FTS_NSOK:
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		default:
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			if (!unlink(p->fts_accpath) ||
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			    (errno == ENOENT))
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				continue;
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		}
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		warn("%s", p->fts_path);
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		eval = 1;
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	}
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	if (errno)
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		err(1, "fts_read");
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	fts_close(fts);
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}
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/*
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 * POSIX.2 requires that if "." or ".." are specified as the basename
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 * portion of an operand, a diagnostic message be written to standard
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 * error and nothing more be done with such operands.
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 *
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 * Since POSIX.2 defines basename as the final portion of a path after
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 * trailing slashes have been removed, we'll remove them here.
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 */
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#define ISDOT(a)	((a)[0] == '.' && (!(a)[1] || ((a)[1] == '.' && !(a)[2])))
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static void
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checkdot(char **argv)
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{
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	char *p, **save, **t;
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	int complained;
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	complained = 0;
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	for (t = argv; *t;) {
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		/* strip trailing slashes */
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		p = strrchr (*t, '\0');
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		while (--p > *t && *p == '/')
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			*p = '\0';
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		/* extract basename */
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		if ((p = strrchr(*t, '/')) != NULL)
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			++p;
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		else
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			p = *t;
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		if (ISDOT(p)) {
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			if (!complained++)
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				warnx("\".\" and \"..\" may not be removed");
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			eval = 1;
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			for (save = t; (t[0] = t[1]) != NULL; ++t)
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				continue;
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			t = save;
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		} else
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			++t;
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	}
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}