[unix-history] / sys / stand / ls.c

/*
 * 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.
 *
 *	from: @(#)ls.c	7.9 (Berkeley) 6/28/90
 *	$Id$
 */

#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);
		}
}
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1982, 1986, 1988 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
e4270b63 RG	33	* from: @(#)ls.c 7.9 (Berkeley) 6/28/90
e4270b63 RG	34	* $Id$
15637ed4 RG	35	*/
	36
	37	#include "sys/param.h"
	38	#include "ufs/dir.h"
	39	#include "saio.h"
	40	#include "sys/ttychars.h"
	41
	42	main()
	43	{
	44	struct dinode *ip;
	45	int fd;
	46
	47	for (;;) {
	48	if ((fd = getfile("ls", 0)) == -1)
	49	exit();
	50	ip = &iob[fd - 3].i_ino;
	51	if ((ip->di_mode & IFMT) != IFDIR) {
	52	printf("ls: not a directory\n");
	53	continue;
	54	}
	55	if (ip->di_size == 0) {
	56	printf("ls: zero length directory\n");
	57	continue;
	58	}
	59	ls(fd);
	60	}
	61	}
	62
	63	#define CTRL(x) (x&037)
	64
	65	getfile(prompt, mode)
	66	char *prompt;
	67	int mode;
	68	{
	69	int fd;
	70	char buf[100];
	71
	72	do {
	73	printf("%s: ", prompt);
	74	gets(buf);
	75	if (buf[0] == CTRL('d') && buf[1] == 0)
	76	return (-1);
	77	} while ((fd = open(buf, mode)) <= 0);
	78	return(fd);
	79	}
	80
	81	typedef struct direct DP;
	82	static
	83	ls(fd)
	84	register int fd;
	85	{
	86	register int size;
	87	register char *dp;
	88	char dirbuf[DIRBLKSIZ];
	89
	90	printf("\ninode\tname\n");
	91	while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ)
	92	for(dp = dirbuf; (dp < (dirbuf + size)) &&
	93	(dp + ((DP *)dp)->d_reclen) < (dirbuf + size);
	94	dp += ((DP *)dp)->d_reclen) {
	95	if (((DP *)dp)->d_ino == 0)
	96	continue;
	97	if (((DP *)dp)->d_namlen > MAXNAMLEN+1) {
	98	printf("Corrupt file name length! Run fsck soon!\n");
99	return;
100	}
101	printf("%d\t%s\n", ((DP *)dp)->d_ino,
102	((DP *)dp)->d_name);
103	}
104	}