NetBSD-5.0.2/sys/lib/libsa/ufs_ls.c
/* $NetBSD: ufs_ls.c,v 1.14 2007/11/24 13:20:58 isaki Exp $ */
/*
* Copyright (c) 1993
* 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. 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.
*/
/*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <lib/libkern/libkern.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include "stand.h"
#include "ufs.h"
#define NELEM(x) (sizeof (x) / sizeof(*x))
typedef uint32_t ino32_t;
typedef struct entry_t entry_t;
struct entry_t {
entry_t *e_next;
ino32_t e_ino;
uint8_t e_type;
char e_name[1];
};
static const char *const typestr[] = {
"unknown",
"FIFO",
"CHR",
0,
"DIR",
0,
"BLK",
0,
"REG",
0,
"LNK",
0,
"SOCK",
0,
"WHT"
};
static int
fn_match(const char *fname, const char *pattern)
{
char fc, pc;
do {
fc = *fname++;
pc = *pattern++;
if (!fc && !pc)
return 1;
if (pc == '?' && fc)
pc = fc;
} while (fc == pc);
if (pc != '*')
return 0;
/*
* Too hard (and unnecessary really) too check for "*?name" etc....
* "**" will look for a '*' and "*?" a '?'
*/
pc = *pattern++;
if (!pc)
return 1;
while ((fname = strchr(fname, pc)))
if (fn_match(++fname, pattern))
return 1;
return 0;
}
void
ufs_ls(const char *path)
{
int fd;
struct stat sb;
size_t size;
char dirbuf[DIRBLKSIZ];
const char *fname = 0;
char *p;
entry_t *names = 0, *n, **np;
if ((fd = open(path, 0)) < 0
|| fstat(fd, &sb) < 0
|| (sb.st_mode & IFMT) != IFDIR) {
/* Path supplied isn't a directory, open parent
directory and list matching files. */
if (fd >= 0)
close(fd);
fname = strrchr(path, '/');
if (fname) {
size = fname - path;
p = alloc(size + 1);
if (!p)
goto out;
memcpy(p, path, size);
p[size] = 0;
fd = open(p, 0);
dealloc(p, size + 1);
} else {
fd = open("", 0);
fname = path;
}
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);
for (; dp < edp; dp = (void *)((char *)dp + dp->d_reclen)) {
const char *t;
if (dp->d_ino == 0)
continue;
if (dp->d_type >= NELEM(typestr) ||
!(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;
}
if (fname && !fn_match(dp->d_name, fname))
continue;
n = alloc(sizeof *n + strlen(dp->d_name));
if (!n) {
printf("%d: %s (%s)\n",
dp->d_ino, dp->d_name, t);
continue;
}
n->e_ino = dp->d_ino;
n->e_type = dp->d_type;
strcpy(n->e_name, dp->d_name);
for (np = &names; *np; np = &(*np)->e_next) {
if (strcmp(n->e_name, (*np)->e_name) < 0)
break;
}
n->e_next = *np;
*np = n;
}
}
if (names) {
do {
n = names;
printf("%d: %s (%s)\n",
n->e_ino, n->e_name, typestr[n->e_type]);
names = n->e_next;
dealloc(n, 0);
} while (names);
} else {
printf( "%s not found\n", path );
}
out:
close(fd);
}