lsattr.c revision d1154eb460efe588eaed3d439c1caaca149fa362 
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 "config.h"
23#include <sys/types.h>
24#include <dirent.h>
25#ifdef HAVE_ERRNO_H
26#include <errno.h>
27#endif
28#include <fcntl.h>
29#ifdef HAVE_GETOPT_H
30#include <getopt.h>
31#else
32extern int optind;
33extern char *optarg;
34#endif
35#include <stdio.h>
36#include <unistd.h>
37#include <stdlib.h>
38#include <string.h>
39#include <sys/param.h>
40#include <sys/stat.h>
41
42#include "ext2fs/ext2_fs.h"
43#include "et/com_err.h"
44#include "e2p/e2p.h"
45
46#include "../version.h"
47#include "nls-enable.h"
48
49#ifdef __GNUC__
50#define EXT2FS_ATTR(x) __attribute__(x)
51#else
52#define EXT2FS_ATTR(x)
53#endif
54
55static const char * program_name = "lsattr";
56
57static int all;
58static int dirs_opt;
59static unsigned pf_options;
60static int recursive;
61static int verbose;
62static int generation_opt;
63
64#ifdef _LFS64_LARGEFILE
65#define LSTAT		lstat64
66#define STRUCT_STAT	struct stat64
67#else
68#define LSTAT		lstat
69#define STRUCT_STAT	struct stat
70#endif
71
72static void usage(void)
73{
74	fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
75	exit(1);
76}
77
78static int list_attributes (const char * name)
79{
80	unsigned long flags;
81	unsigned long generation;
82
83	if (fgetflags (name, &flags) == -1) {
84		com_err (program_name, errno, _("While reading flags on %s"),
85			 name);
86		return -1;
87	}
88	if (generation_opt) {
89		if (fgetversion (name, &generation) == -1) {
90			com_err (program_name, errno,
91				 _("While reading version on %s"),
92				 name);
93			return -1;
94		}
95		printf ("%5lu ", generation);
96	}
97	if (pf_options & PFOPT_LONG) {
98		printf("%-28s ", name);
99		print_flags(stdout, flags, pf_options);
100		fputc('\n', stdout);
101	} else {
102		print_flags(stdout, flags, pf_options);
103		printf(" %s\n", name);
104	}
105	return 0;
106}
107
108static int lsattr_dir_proc (const char *, struct dirent *, void *);
109
110static int lsattr_args (const char * name)
111{
112	STRUCT_STAT	st;
113	int retval = 0;
114
115	if (LSTAT (name, &st) == -1) {
116		com_err (program_name, errno, _("while trying to stat %s"),
117			 name);
118		retval = -1;
119	} else {
120		if (S_ISDIR(st.st_mode) && !dirs_opt)
121			retval = iterate_on_dir (name, lsattr_dir_proc, NULL);
122		else
123			retval = list_attributes (name);
124	}
125	return retval;
126}
127
128static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
129			    void * private EXT2FS_ATTR((unused)))
130{
131	STRUCT_STAT	st;
132	char *path;
133	int dir_len = strlen(dir_name);
134
135	path = malloc(dir_len + strlen (de->d_name) + 2);
136
137	if (dir_len && dir_name[dir_len-1] == '/')
138		sprintf (path, "%s%s", dir_name, de->d_name);
139	else
140		sprintf (path, "%s/%s", dir_name, de->d_name);
141	if (LSTAT (path, &st) == -1)
142		perror (path);
143	else {
144		if (de->d_name[0] != '.' || all) {
145			list_attributes (path);
146			if (S_ISDIR(st.st_mode) && recursive &&
147			    strcmp(de->d_name, ".") &&
148			    strcmp(de->d_name, "..")) {
149				printf ("\n%s:\n", path);
150				iterate_on_dir (path, lsattr_dir_proc, NULL);
151				printf ("\n");
152			}
153		}
154	}
155	free(path);
156	return 0;
157}
158
159int main (int argc, char ** argv)
160{
161	int c;
162	int i;
163	int err, retval = 0;
164
165#ifdef ENABLE_NLS
166	setlocale(LC_MESSAGES, "");
167	setlocale(LC_CTYPE, "");
168	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
169	textdomain(NLS_CAT_NAME);
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