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https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
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49c6b4e947
Fix the debugfs commands htree_dump, dx_hash, and list_dir so they print a print a usage message when an illegal option character is given. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
169 lines
3.4 KiB
C
169 lines
3.4 KiB
C
/*
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* ls.c --- list directories
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*
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* Copyright (C) 1997 Theodore Ts'o. This file may be redistributed
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* under the terms of the GNU Public License.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#else
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extern int optind;
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extern char *optarg;
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#endif
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#include "debugfs.h"
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/*
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* list directory
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*/
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#define LONG_OPT 0x0001
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#define DELETED_OPT 0x0002
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struct list_dir_struct {
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FILE *f;
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int col;
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int options;
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};
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static const char *monstr[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
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static int list_dir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
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int entry,
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struct ext2_dir_entry *dirent,
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int offset EXT2FS_ATTR((unused)),
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int blocksize EXT2FS_ATTR((unused)),
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char *buf EXT2FS_ATTR((unused)),
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void *private)
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{
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struct ext2_inode inode;
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ext2_ino_t ino;
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struct tm *tm_p;
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time_t modtime;
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char name[EXT2_NAME_LEN];
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char tmp[EXT2_NAME_LEN + 16];
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char datestr[80];
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char lbr, rbr;
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int thislen;
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struct list_dir_struct *ls = (struct list_dir_struct *) private;
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thislen = ((dirent->name_len & 0xFF) < EXT2_NAME_LEN) ?
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(dirent->name_len & 0xFF) : EXT2_NAME_LEN;
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strncpy(name, dirent->name, thislen);
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name[thislen] = '\0';
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ino = dirent->inode;
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if (entry == DIRENT_DELETED_FILE) {
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lbr = '<';
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rbr = '>';
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ino = 0;
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} else {
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lbr = rbr = ' ';
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}
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if (ls->options & LONG_OPT) {
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if (ino) {
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if (debugfs_read_inode(ino, &inode, name))
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return 0;
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modtime = inode.i_mtime;
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tm_p = localtime(&modtime);
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sprintf(datestr, "%2d-%s-%4d %02d:%02d",
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tm_p->tm_mday, monstr[tm_p->tm_mon],
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1900 + tm_p->tm_year, tm_p->tm_hour,
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tm_p->tm_min);
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} else {
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strcpy(datestr, " ");
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memset(&inode, 0, sizeof(struct ext2_inode));
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}
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fprintf(ls->f, "%c%6u%c %6o (%d) %5d %5d ", lbr, ino, rbr,
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inode.i_mode, dirent->name_len >> 8,
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inode.i_uid, inode.i_gid);
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if (LINUX_S_ISDIR(inode.i_mode))
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fprintf(ls->f, "%5d", inode.i_size);
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else
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fprintf(ls->f, "%5lld", inode.i_size |
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((__u64)inode.i_size_high << 32));
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fprintf (ls->f, " %s %s\n", datestr, name);
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} else {
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sprintf(tmp, "%c%u%c (%d) %s ", lbr, dirent->inode, rbr,
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dirent->rec_len, name);
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thislen = strlen(tmp);
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if (ls->col + thislen > 80) {
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fprintf(ls->f, "\n");
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ls->col = 0;
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}
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fprintf(ls->f, "%s", tmp);
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ls->col += thislen;
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}
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return 0;
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}
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void do_list_dir(int argc, char *argv[])
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{
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ext2_ino_t inode;
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int retval;
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int c;
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int flags;
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struct list_dir_struct ls;
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ls.options = 0;
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if (check_fs_open(argv[0]))
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return;
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reset_getopt();
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while ((c = getopt (argc, argv, "dl")) != EOF) {
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switch (c) {
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case 'l':
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ls.options |= LONG_OPT;
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break;
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case 'd':
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ls.options |= DELETED_OPT;
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break;
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default:
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goto print_usage;
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}
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}
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if (argc > optind+1) {
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print_usage:
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com_err(0, 0, "Usage: ls [-l] [-d] file");
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return;
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}
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if (argc == optind)
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inode = cwd;
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else
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inode = string_to_inode(argv[optind]);
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if (!inode)
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return;
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ls.f = open_pager();
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ls.col = 0;
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flags = DIRENT_FLAG_INCLUDE_EMPTY;
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if (ls.options & DELETED_OPT)
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flags |= DIRENT_FLAG_INCLUDE_REMOVED;
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retval = ext2fs_dir_iterate2(current_fs, inode, flags,
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0, list_dir_proc, &ls);
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fprintf(ls.f, "\n");
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close_pager(ls.f);
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if (retval)
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com_err(argv[1], retval, 0);
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return;
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}
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