107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/* $NetBSD: ls.c,v 1.17 2011/09/27 01:08:55 christos Exp $ */
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/*-
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* Copyright (c) 1993
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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/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)ls.c 8.1 (Berkeley) 6/11/93";
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#else
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__RCSID("$NetBSD: ls.c,v 1.17 2011/09/27 01:08:55 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/dirent.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ufs/dinode.h>
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#include <sys/ttychars.h>
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#include <lib/libsa/stand.h>
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int main(void);
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static void ls(int);
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int
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main(void)
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{
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struct stat st;
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int fd;
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for (;;) {
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if ((fd = getfile("ls", 0)) == -1)
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exit();
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if (fstat(fd, &st) == -1) {
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printf("ls: cannot stat\n");
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continue;
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}
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if (!S_ISDIR(st.st_mode)) {
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printf("ls: not a directory\n");
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continue;
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}
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if (st.st_size == 0) {
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printf("ls: zero length directory\n");
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continue;
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}
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ls(fd);
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}
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}
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typedef struct dirent DP;
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static void
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ls(register int fd)
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{
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register int size;
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register char *dp;
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char dirbuf[DIRBLKSIZ];
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printf("\ninode\tname\n");
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while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ)
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for (dp = dirbuf; (dp < (dirbuf + size)) &&
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(dp + ((DP *)dp)->d_reclen) < (dirbuf + size);
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dp += ((DP *)dp)->d_reclen) {
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if (((DP *)dp)->d_fileno == 0)
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continue;
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if (((DP *)dp)->d_namlen > NAME_MAX + 1) {
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printf("Corrupt file name length! Run fsck soon!\n");
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return;
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}
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printf("%d\t%s\n", ((DP *)dp)->d_fileno,
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((DP *)dp)->d_name);
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}
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}
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