NetBSD/sys/lib/libsa/ufs_ls.c

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/* $NetBSD: ufs_ls.c,v 1.1 1999/04/14 11:32:50 drochner Exp $ */
/*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1996
* Matthias Drochner. 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.
*/
#include <sys/param.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include "stand.h"
#include "ufs.h"
static char *typestr[] = {
"unknown",
"FIFO",
"CHR",
0,
"DIR",
0,
"BLK",
0,
"REG",
0,
"LNK",
0,
"SOCK",
0,
"WHT"
};
void
ufs_ls(path)
const char *path;
{
int fd;
struct stat sb;
size_t size;
char dirbuf[DIRBLKSIZ];
fd = open(path, 0);
if (fd < 0) {
printf("ls: %s\n", strerror(errno));
return;
}
if (fstat(fd, &sb) < 0) {
printf("stat: %s\n", strerror(errno));
goto out;
}
if ((sb.st_mode & IFMT) != IFDIR) {
printf("%s: %s\n", path, strerror(ENOTDIR));
goto out;
}
while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ) {
struct direct *dp, *edp;
dp = (struct direct *) dirbuf;
edp = (struct direct *) (dirbuf + size);
while (dp < edp) {
if (dp->d_ino != (ino_t) 0) {
char *t;
if ((dp->d_namlen > MAXNAMLEN + 1) ||
(dp->d_type >
sizeof(typestr) / sizeof(char *) - 1) ||
!(t = typestr[dp->d_type])) {
/*
* This does not handle "old"
* filesystems properly. On little
* endian machines, we get a bogus
* type name if the namlen matches a
* valid type identifier. We could
* check if we read namlen "0" and
* handle this case specially, if
* there were a pressing need...
*/
printf("bad dir entry\n");
goto out;
}
printf("%d: %s (%s)\n", dp->d_ino,
dp->d_name, t);
}
dp = (struct direct *) ((char *) dp + dp->d_reclen);
}
}
out:
close(fd);
}