lsattr.c revision 519149fb458b0fa69c10fecd83fae42e838cf01d 
1/*
2 * lsattr.c		- List file attributes on an ext2 file system
3 *
4 * Copyright (C) 1993, 1994  Remy Card <card@masi.ibp.fr>
5 *                           Laboratoire MASI, Institut Blaise Pascal
6 *                           Universite Pierre et Marie Curie (Paris VI)
7 *
8 * This file can be redistributed under the terms of the GNU General
9 * Public License
10 */
11
12/*
13 * History:
14 * 93/10/30	- Creation
15 * 93/11/13	- Replace stat() calls by lstat() to avoid loops
16 * 94/02/27	- Integrated in Ted's distribution
17 */
18
19#include <sys/types.h>
20#include <dirent.h>
21#ifdef HAVE_ERRNO_H
22#include <errno.h>
23#endif
24#include <fcntl.h>
25#ifdef HAVE_GETOPT_H
26#include <getopt.h>
27#else
28extern int optind;
29extern char *optarg;
30#endif
31#include <stdio.h>
32#include <unistd.h>
33#include <stdlib.h>
34#include <string.h>
35#include <sys/param.h>
36#include <sys/stat.h>
37#include <linux/ext2_fs.h>
38
39#include "et/com_err.h"
40#include "e2p/e2p.h"
41
42#include "../version.h"
43
44const char * program_name = "lsattr";
45
46int all = 0;
47int d_opt = 0;
48int l_opt = 0;
49int recursive = 0;
50int v_opt = 0;
51
52static void volatile usage (void)
53{
54	fprintf (stderr, "Usage: %s [-Radlv] [files...]\n", program_name);
55	exit (1);
56}
57
58static void list_attributes (const char * name)
59{
60	unsigned long flags;
61	unsigned long version;
62
63	if (fgetflags (name, &flags) == -1)
64		com_err (program_name, errno, "While reading flags on %s",
65			 name);
66	else if (fgetversion (name, &version) == -1)
67		com_err (program_name, errno, "While reading version on %s",
68			 name);
69	else
70	{
71		if (v_opt)
72			printf ("%5lu ", version);
73		print_flags (stdout, flags, l_opt);
74		printf (" %s\n", name);
75	}
76}
77
78static int lsattr_dir_proc (const char *, struct dirent *, void *);
79
80static void lsattr_args (const char * name)
81{
82	struct stat st;
83
84	if (lstat (name, &st) == -1)
85		com_err (program_name, errno, "while stating %s", name);
86	else
87	{
88		if (S_ISDIR(st.st_mode) && !d_opt)
89			iterate_on_dir (name, lsattr_dir_proc, (void *) NULL);
90		else
91			list_attributes (name);
92	}
93}
94
95static int lsattr_dir_proc (const char * dir_name, struct dirent * de, void * private)
96{
97	struct stat st;
98	char *path;
99
100	path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1);
101
102	sprintf (path, "%s/%s", dir_name, de->d_name);
103	if (lstat (path, &st) == -1)
104		perror (path);
105	else {
106		if (de->d_name[0] != '.' || all) {
107			list_attributes (path);
108			if (S_ISDIR(st.st_mode) && recursive &&
109			    strcmp(de->d_name, ".") &&
110			    strcmp(de->d_name, "..")) {
111				printf ("\n%s:\n", path);
112				iterate_on_dir (path, lsattr_dir_proc,
113						(void *) NULL);
114				printf ("\n");
115			}
116		}
117	}
118	free(path);
119	return 0;
120}
121
122int main (int argc, char ** argv)
123{
124	int c;
125	int i;
126
127	fprintf (stderr, "lsattr %s, %s for EXT2 FS %s, %s\n",
128		 E2FSPROGS_VERSION, E2FSPROGS_DATE,
129		 EXT2FS_VERSION, EXT2FS_DATE);
130	if (argc && *argv)
131		program_name = *argv;
132	while ((c = getopt (argc, argv, "Radlv")) != EOF)
133		switch (c)
134		{
135			case 'R':
136				recursive = 1;
137				break;
138			case 'a':
139				all = 1;
140				break;
141			case 'd':
142				d_opt = 1;
143				break;
144			case 'l':
145				l_opt = 1;
146				break;
147			case 'v':
148				v_opt = 1;
149				break;
150			default:
151				usage ();
152		}
153
154	if (optind > argc - 1)
155		lsattr_args (".");
156	else
157		for (i = optind; i < argc; i++)
158			lsattr_args (argv[i]);
159	exit(0);
160}
161