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      1 /*
      2  * lsattr.c		- List file attributes on an ext2 file system
      3  *
      4  * Copyright (C) 1993, 1994  Remy Card <card (at) 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
     32 extern int optind;
     33 extern 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 "support/nls-enable.h"
     47 #include "../version.h"
     48 
     49 #ifdef __GNUC__
     50 #define EXT2FS_ATTR(x) __attribute__(x)
     51 #else
     52 #define EXT2FS_ATTR(x)
     53 #endif
     54 
     55 static const char * program_name = "lsattr";
     56 
     57 static int all;
     58 static int dirs_opt;
     59 static unsigned pf_options;
     60 static int recursive;
     61 static int verbose;
     62 static int generation_opt;
     63 static int project_opt;
     64 
     65 #ifdef _LFS64_LARGEFILE
     66 #define LSTAT		lstat64
     67 #define STRUCT_STAT	struct stat64
     68 #else
     69 #define LSTAT		lstat
     70 #define STRUCT_STAT	struct stat
     71 #endif
     72 
     73 static void usage(void)
     74 {
     75 	fprintf(stderr, _("Usage: %s [-RVadlpv] [files...]\n"), program_name);
     76 	exit(1);
     77 }
     78 
     79 static int list_attributes (const char * name)
     80 {
     81 	unsigned long flags;
     82 	unsigned long generation;
     83 	unsigned long project;
     84 
     85 	if (fgetflags (name, &flags) == -1) {
     86 		com_err (program_name, errno, _("While reading flags on %s"),
     87 			 name);
     88 		return -1;
     89 	}
     90 	if (project_opt) {
     91 		if (fgetproject(name, &project) == -1) {
     92 			com_err (program_name, errno,
     93 				 _("While reading project on %s"),
     94 				 name);
     95 			return -1;
     96 		}
     97 		printf ("%5lu ", project);
     98 	}
     99 	if (generation_opt) {
    100 		if (fgetversion (name, &generation) == -1) {
    101 			com_err (program_name, errno,
    102 				 _("While reading version on %s"),
    103 				 name);
    104 			return -1;
    105 		}
    106 		printf ("%-10lu ", generation);
    107 	}
    108 	if (pf_options & PFOPT_LONG) {
    109 		printf("%-28s ", name);
    110 		print_flags(stdout, flags, pf_options);
    111 		fputc('\n', stdout);
    112 	} else {
    113 		print_flags(stdout, flags, pf_options);
    114 		printf(" %s\n", name);
    115 	}
    116 	return 0;
    117 }
    118 
    119 static int lsattr_dir_proc (const char *, struct dirent *, void *);
    120 
    121 static int lsattr_args (const char * name)
    122 {
    123 	STRUCT_STAT	st;
    124 	int retval = 0;
    125 
    126 	if (LSTAT (name, &st) == -1) {
    127 		com_err (program_name, errno, _("while trying to stat %s"),
    128 			 name);
    129 		retval = -1;
    130 	} else {
    131 		if (S_ISDIR(st.st_mode) && !dirs_opt)
    132 			retval = iterate_on_dir (name, lsattr_dir_proc, NULL);
    133 		else
    134 			retval = list_attributes (name);
    135 	}
    136 	return retval;
    137 }
    138 
    139 static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
    140 			    void * private EXT2FS_ATTR((unused)))
    141 {
    142 	STRUCT_STAT	st;
    143 	char *path;
    144 	int dir_len = strlen(dir_name);
    145 
    146 	path = malloc(dir_len + strlen (de->d_name) + 2);
    147 
    148 	if (dir_len && dir_name[dir_len-1] == '/')
    149 		sprintf (path, "%s%s", dir_name, de->d_name);
    150 	else
    151 		sprintf (path, "%s/%s", dir_name, de->d_name);
    152 	if (LSTAT (path, &st) == -1)
    153 		perror (path);
    154 	else {
    155 		if (de->d_name[0] != '.' || all) {
    156 			list_attributes (path);
    157 			if (S_ISDIR(st.st_mode) && recursive &&
    158 			    strcmp(de->d_name, ".") &&
    159 			    strcmp(de->d_name, "..")) {
    160 				printf ("\n%s:\n", path);
    161 				iterate_on_dir (path, lsattr_dir_proc, NULL);
    162 				printf ("\n");
    163 			}
    164 		}
    165 	}
    166 	free(path);
    167 	return 0;
    168 }
    169 
    170 int main (int argc, char ** argv)
    171 {
    172 	int c;
    173 	int i;
    174 	int err, retval = 0;
    175 
    176 #ifdef ENABLE_NLS
    177 	setlocale(LC_MESSAGES, "");
    178 	setlocale(LC_CTYPE, "");
    179 	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
    180 	textdomain(NLS_CAT_NAME);
    181 	set_com_err_gettext(gettext);
    182 #endif
    183 	if (argc && *argv)
    184 		program_name = *argv;
    185 	while ((c = getopt (argc, argv, "RVadlvp")) != EOF)
    186 		switch (c)
    187 		{
    188 			case 'R':
    189 				recursive = 1;
    190 				break;
    191 			case 'V':
    192 				verbose = 1;
    193 				break;
    194 			case 'a':
    195 				all = 1;
    196 				break;
    197 			case 'd':
    198 				dirs_opt = 1;
    199 				break;
    200 			case 'l':
    201 				pf_options = PFOPT_LONG;
    202 				break;
    203 			case 'v':
    204 				generation_opt = 1;
    205 				break;
    206 			case 'p':
    207 				project_opt = 1;
    208 				break;
    209 			default:
    210 				usage();
    211 		}
    212 
    213 	if (verbose)
    214 		fprintf (stderr, "lsattr %s (%s)\n",
    215 			 E2FSPROGS_VERSION, E2FSPROGS_DATE);
    216 	if (optind > argc - 1) {
    217 		if (lsattr_args (".") == -1)
    218 			retval = 1;
    219 	} else {
    220 		for (i = optind; i < argc; i++) {
    221 			err = lsattr_args (argv[i]);
    222 			if (err)
    223 				retval = 1;
    224 		}
    225 	}
    226 	exit(retval);
    227 }
    228