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- /*
- * Copyright (c) 1982, 1986, 1988 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.
- *
- * @(#)ls.c 7.9 (Berkeley) 6/28/90
- */
-
- #include "sys/param.h"
- #include "ufs/dir.h"
- #include "saio.h"
- #include "sys/ttychars.h"
-
- main()
- {
- struct dinode *ip;
- int fd;
-
- for (;;) {
- if ((fd = getfile("ls", 0)) == -1)
- exit();
- ip = &iob[fd - 3].i_ino;
- if ((ip->di_mode & IFMT) != IFDIR) {
- printf("ls: not a directory\n");
- continue;
- }
- if (ip->di_size == 0) {
- printf("ls: zero length directory\n");
- continue;
- }
- ls(fd);
- }
- }
-
- #define CTRL(x) (x&037)
-
- getfile(prompt, mode)
- char *prompt;
- int mode;
- {
- int fd;
- char buf[100];
-
- do {
- printf("%s: ", prompt);
- gets(buf);
- if (buf[0] == CTRL('d') && buf[1] == 0)
- return (-1);
- } while ((fd = open(buf, mode)) <= 0);
- return(fd);
- }
-
- typedef struct direct DP;
- static
- ls(fd)
- register int fd;
- {
- register int size;
- register char *dp;
- char dirbuf[DIRBLKSIZ];
-
- printf("\ninode\tname\n");
- while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ)
- for(dp = dirbuf; (dp < (dirbuf + size)) &&
- (dp + ((DP *)dp)->d_reclen) < (dirbuf + size);
- dp += ((DP *)dp)->d_reclen) {
- if (((DP *)dp)->d_ino == 0)
- continue;
- if (((DP *)dp)->d_namlen > MAXNAMLEN+1) {
- printf("Corrupt file name length! Run fsck soon!\n");
- return;
- }
- printf("%d\t%s\n", ((DP *)dp)->d_ino,
- ((DP *)dp)->d_name);
- }
- }
-