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/*
* ls.c --- list directories
*
* Copyright (C) 1997 Theodore Ts'o. This file may be redistributed
* under the terms of the GNU Public License.
*/
#include "config.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include <sys/types.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#else
extern int optind;
extern char *optarg;
#endif
#include "debugfs.h"
/*
* list directory
*/
#define LONG_OPT 0x0001
#define PARSE_OPT 0x0002
#define RAW_OPT 0x0004
#define ENCRYPT_OPT 0x8000
struct list_dir_struct {
FILE *f;
int col;
int options;
int state;
};
static const char *monstr[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
static int print_filename(FILE *f, struct ext2_dir_entry *dirent, int options)
{
unsigned char ch;
const char *cp = dirent->name;
int len = ext2fs_dirent_name_len(dirent);
int retlen = 0;
if ((options & ENCRYPT_OPT) && !(options & RAW_OPT)) {
if (f)
return fprintf(f, "<encrypted (%d)>", len);
else
return snprintf(NULL, 0, "<encrypted (%d)>", len);
}
while (len--) {
ch = *cp++;
if (ch < 32 || ch >= 127 || ch == '\\') {
if (f)
fprintf(f, "\\x%02x", ch);
retlen += 4;
} else {
if (f)
fputc(ch, f);
retlen++;
}
}
return retlen;
}
static int list_dir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
int entry,
struct ext2_dir_entry *dirent,
int offset EXT2FS_ATTR((unused)),
int blocksize EXT2FS_ATTR((unused)),
char *buf EXT2FS_ATTR((unused)),
void *private)
{
struct ext2_inode inode;
ext2_ino_t ino;
struct tm *tm_p;
time_t modtime;
char tmp[EXT2_NAME_LEN + 16];
char datestr[80];
char lbr, rbr;
int thislen;
int options;
struct list_dir_struct *ls = (struct list_dir_struct *) private;
struct ext2_dir_entry_tail *t = (struct ext2_dir_entry_tail *) dirent;
thislen = ext2fs_dirent_name_len(dirent);
ino = dirent->inode;
options = ls->options;
if (ls->state < 2) {
ls->state++;
options |= RAW_OPT;
}
if (entry == DIRENT_DELETED_FILE) {
lbr = '<';
rbr = '>';
ino = 0;
} else {
lbr = rbr = ' ';
}
if (options & PARSE_OPT) {
if (ino) {
if (debugfs_read_inode(ino, &inode, "ls"))
return 0;
} else
memset(&inode, 0, sizeof(struct ext2_inode));
fprintf(ls->f,"/%u/%06o/%d/%d/%.*s/", ino, inode.i_mode,
inode_uid(inode), inode_gid(inode), thislen, dirent->name);
if (LINUX_S_ISDIR(inode.i_mode))
fprintf(ls->f, "/");
else
fprintf(ls->f, "%llu/",
(unsigned long long) EXT2_I_SIZE(&inode));
fprintf(ls->f, "\n");
} else if (options & LONG_OPT) {
if (ino) {
if (debugfs_read_inode(ino, &inode, "ls"))
return 0;
modtime = inode.i_mtime;
tm_p = localtime(&modtime);
sprintf(datestr, "%2d-%s-%4d %02d:%02d",
tm_p->tm_mday, monstr[tm_p->tm_mon],
1900 + tm_p->tm_year, tm_p->tm_hour,
tm_p->tm_min);
} else {
strcpy(datestr, " ");
memset(&inode, 0, sizeof(struct ext2_inode));
}
fprintf(ls->f, "%c%6u%c %6o ", lbr, ino, rbr, inode.i_mode);
if (entry == DIRENT_CHECKSUM) {
fprintf(ls->f, "(dirblock checksum: 0x%08x)\n",
t->det_checksum);
return 0;
}
fprintf(ls->f, "(%d) %5d %5d ",
ext2fs_dirent_file_type(dirent),
inode_uid(inode), inode_gid(inode));
fprintf(ls->f, "%5llu",
(unsigned long long) EXT2_I_SIZE(&inode));
fprintf(ls->f, " %s ", datestr);
print_filename(ls->f, dirent, options);
fputc('\n', ls->f);
} else {
if (entry == DIRENT_CHECKSUM) {
sprintf(tmp, "%c%u%c (dirblock checksum: 0x%08x) ",
lbr, dirent->inode, rbr, t->det_checksum);
thislen = strlen(tmp);
if (ls->col + thislen > 80) {
fputc('\n', ls->f);
ls->col = 0;
}
fprintf(ls->f, "%s", tmp);
ls->col += thislen;
return 0;
}
sprintf(tmp, "%c%u%c (%d) ", lbr, dirent->inode, rbr,
dirent->rec_len);
thislen = strlen(tmp) + 3;
thislen += print_filename(NULL, dirent, options);
if (ls->col + thislen > 80) {
fputc('\n', ls->f);
ls->col = 0;
}
fprintf(ls->f, "%s", tmp);
print_filename(ls->f, dirent, options);
fputs(" ", ls->f);
ls->col += thislen;
}
return 0;
}
void do_list_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
void *infop EXT2FS_ATTR((unused)))
{
struct ext2_inode inode;
ext2_ino_t ino;
int retval;
int c;
int flags = DIRENT_FLAG_INCLUDE_EMPTY;
struct list_dir_struct ls;
ls.options = 0;
ls.state = 0;
if (check_fs_open(argv[0]))
return;
reset_getopt();
while ((c = getopt (argc, argv, "cdlpr")) != EOF) {
switch (c) {
case 'c':
flags |= DIRENT_FLAG_INCLUDE_CSUM;
break;
case 'l':
ls.options |= LONG_OPT;
break;
case 'd':
flags |= DIRENT_FLAG_INCLUDE_REMOVED;
break;
case 'p':
ls.options |= PARSE_OPT;
break;
case 'r':
ls.options |= RAW_OPT;
break;
default:
goto print_usage;
}
}
if (argc > optind+1) {
print_usage:
com_err(0, 0, "Usage: ls [-c] [-d] [-l] [-p] [-r] file");
return;
}
if (argc == optind)
ino = cwd;
else
ino = string_to_inode(argv[optind]);
if (!ino)
return;
ls.f = open_pager();
ls.col = 0;
if (debugfs_read_inode(ino, &inode, argv[0]))
return;
if (inode.i_flags & EXT4_ENCRYPT_FL)
ls.options |= ENCRYPT_OPT;
retval = ext2fs_dir_iterate2(current_fs, ino, flags,
0, list_dir_proc, &ls);
fprintf(ls.f, "\n");
close_pager(ls.f);
if (retval)
com_err(argv[1], retval, 0);
return;
}
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