freebsd-dev/bin/rmdir/rmdir.c
Bruce Evans 8e9c31e830 Don't strip trailing slashes (for the initial rmdir). It breaks
following of the symlink for `rmdir symlink/' and is unnecessary
for ordinary directories (POSIX doesn't require rmdir(1) to do
anything for trailing slashes; it requires rmdir(2) to let them
"refer to a directory", and following the symlink for symlink/ is
what BSD does).  This also fixes bugs in the slash-stripping code
(for paths consisting entirely of slashes, the pointer into the
string was decremented to "before" the beginning of the string,
and the path was at best stripped to "".

The behaviour is unchanged except for the final directory for
`rmdir -p ...'.  There is no alternative to stripping intermediate
slashes since they must be specified.  The sloppy slash-stripping
code is adequate for intermediate directories, since the all-slashes
case fails early.
1997-12-19 20:20:22 +00:00

119 lines
3.1 KiB
C

/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* $Id: rmdir.c,v 1.6 1997/03/28 15:24:37 imp Exp $
*/
#ifndef lint
static char const copyright[] =
"@(#) Copyright (c) 1992, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char const sccsid[] = "@(#)rmdir.c 8.3 (Berkeley) 4/2/94";
#endif /* not lint */
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int rm_path __P((char *));
void usage __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
int ch, errors;
int pflag;
pflag = 0;
while ((ch = getopt(argc, argv, "p")) != -1)
switch(ch) {
case 'p':
pflag = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc == 0)
usage();
for (errors = 0; *argv; argv++) {
if (rmdir(*argv) < 0) {
warn("%s", *argv);
errors = 1;
} else if (pflag)
errors |= rm_path(*argv);
}
exit(errors);
}
int
rm_path(path)
char *path;
{
char *p;
while ((p = strrchr(path, '/')) != NULL) {
/* Delete trailing slashes. */
while (--p > path && *p == '/')
;
*++p = '\0';
if (rmdir(path) < 0) {
warn("%s", path);
return (1);
}
}
return (0);
}
void
usage()
{
(void)fprintf(stderr, "usage: rmdir [-p] directory ...\n");
exit(1);
}