104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*
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* Copyright (c) 1982, 1986, 1988 Regents of the University of California.
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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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* @(#)ls.c 7.9 (Berkeley) 6/28/90
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*/
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#include "sys/param.h"
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#include "ufs/dir.h"
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#include "saio.h"
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#include "sys/ttychars.h"
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main()
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{
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struct dinode *ip;
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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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ip = &iob[fd - 3].i_ino;
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if ((ip->di_mode & IFMT) != IFDIR) {
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printf("ls: not a directory\n");
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continue;
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}
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if (ip->di_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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#define CTRL(x) (x&037)
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getfile(prompt, mode)
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char *prompt;
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int mode;
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{
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int fd;
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char buf[100];
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do {
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printf("%s: ", prompt);
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gets(buf);
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if (buf[0] == CTRL('d') && buf[1] == 0)
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return (-1);
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} while ((fd = open(buf, mode)) <= 0);
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return(fd);
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}
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typedef struct direct DP;
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static
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ls(fd)
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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_ino == 0)
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continue;
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if (((DP *)dp)->d_namlen > MAXNAMLEN+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_ino,
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((DP *)dp)->d_name);
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}
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}
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