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 * 98/12/29	- Display version info only when -V specified (G M Sipe)
18 */
19
20#define _LARGEFILE64_SOURCE
21
22#include <sys/types.h>
23#include <dirent.h>
24#ifdef HAVE_ERRNO_H
25#include <errno.h>
26#endif
27#include <fcntl.h>
28#ifdef HAVE_GETOPT_H
29#include <getopt.h>
30#else
31extern int optind;
32extern char *optarg;
33#endif
34#include <stdio.h>
35#include <unistd.h>
36#include <stdlib.h>
37#include <string.h>
38#include <sys/param.h>
39#include <sys/stat.h>
40
41#include "ext2fs/ext2_fs.h"
42#include "et/com_err.h"
43#include "e2p/e2p.h"
44
45#include "../version.h"
46#include "nls-enable.h"
47
48#ifdef __GNUC__
49#define EXT2FS_ATTR(x) __attribute__(x)
50#else
51#define EXT2FS_ATTR(x)
52#endif
53
54static const char * program_name = "lsattr";
55
56static int all;
57static int dirs_opt;
58static unsigned pf_options;
59static int recursive;
60static int verbose;
61static int generation_opt;
62
63#ifdef _LFS64_LARGEFILE
64#define LSTAT		lstat64
65#define STRUCT_STAT	struct stat64
66#else
67#define LSTAT		lstat
68#define STRUCT_STAT	struct stat
69#endif
70
71static void usage(void)
72{
73	fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
74	exit(1);
75}
76
77static int list_attributes (const char * name)
78{
79	unsigned long flags;
80	unsigned long generation;
81
82	if (fgetflags (name, &flags) == -1) {
83		com_err (program_name, errno, _("While reading flags on %s"),
84			 name);
85		return -1;
86	}
87	if (generation_opt) {
88		if (fgetversion (name, &generation) == -1) {
89			com_err (program_name, errno,
90				 _("While reading version on %s"),
91				 name);
92			return -1;
93		}
94		printf ("%5lu ", generation);
95	}
96	if (pf_options & PFOPT_LONG) {
97		printf("%-28s ", name);
98		print_flags(stdout, flags, pf_options);
99		fputc('\n', stdout);
100	} else {
101		print_flags(stdout, flags, pf_options);
102		printf(" %s\n", name);
103	}
104	return 0;
105}
106
107static int lsattr_dir_proc (const char *, struct dirent *, void *);
108
109static int lsattr_args (const char * name)
110{
111	STRUCT_STAT	st;
112	int retval = 0;
113
114	if (LSTAT (name, &st) == -1) {
115		com_err (program_name, errno, _("while trying to stat %s"),
116			 name);
117		retval = -1;
118	} else {
119		if (S_ISDIR(st.st_mode) && !dirs_opt)
120			retval = iterate_on_dir (name, lsattr_dir_proc, NULL);
121		else
122			retval = list_attributes (name);
123	}
124	return retval;
125}
126
127static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
128			    void * private EXT2FS_ATTR((unused)))
129{
130	STRUCT_STAT	st;
131	char *path;
132	int dir_len = strlen(dir_name);
133
134	path = malloc(dir_len + strlen (de->d_name) + 2);
135
136	if (dir_len && dir_name[dir_len-1] == '/')
137		sprintf (path, "%s%s", dir_name, de->d_name);
138	else
139		sprintf (path, "%s/%s", dir_name, de->d_name);
140	if (LSTAT (path, &st) == -1)
141		perror (path);
142	else {
143		if (de->d_name[0] != '.' || all) {
144			list_attributes (path);
145			if (S_ISDIR(st.st_mode) && recursive &&
146			    strcmp(de->d_name, ".") &&
147			    strcmp(de->d_name, "..")) {
148				printf ("\n%s:\n", path);
149				iterate_on_dir (path, lsattr_dir_proc, NULL);
150				printf ("\n");
151			}
152		}
153	}
154	free(path);
155	return 0;
156}
157
158int main (int argc, char ** argv)
159{
160	int c;
161	int i;
162	int err, retval = 0;
163
164#ifdef ENABLE_NLS
165	setlocale(LC_MESSAGES, "");
166	setlocale(LC_CTYPE, "");
167	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
168	textdomain(NLS_CAT_NAME);
169	set_com_err_gettext(gettext);
170#endif
171	if (argc && *argv)
172		program_name = *argv;
173	while ((c = getopt (argc, argv, "RVadlv")) != EOF)
174		switch (c)
175		{
176			case 'R':
177				recursive = 1;
178				break;
179			case 'V':
180				verbose = 1;
181				break;
182			case 'a':
183				all = 1;
184				break;
185			case 'd':
186				dirs_opt = 1;
187				break;
188			case 'l':
189				pf_options = PFOPT_LONG;
190				break;
191			case 'v':
192				generation_opt = 1;
193				break;
194			default:
195				usage();
196		}
197
198	if (verbose)
199		fprintf (stderr, "lsattr %s (%s)\n",
200			 E2FSPROGS_VERSION, E2FSPROGS_DATE);
201	if (optind > argc - 1) {
202		if (lsattr_args (".") == -1)
203			retval = 1;
204	} else {
205		for (i = optind; i < argc; i++) {
206			err = lsattr_args (argv[i]);
207			if (err)
208				retval = 1;
209		}
210	}
211	exit(retval);
212}
213