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-rw-r--r--debugfs/ls.c252
1 files changed, 252 insertions, 0 deletions
diff --git a/debugfs/ls.c b/debugfs/ls.c
new file mode 100644
index 0000000..525f084
--- /dev/null
+++ b/debugfs/ls.c
@@ -0,0 +1,252 @@
+/*
+ * 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;
+}
+
+