2 * message.c --- print e2fsck messages (with compression)
4 * Copyright 1996, 1997 by Theodore Ts'o
7 * This file may be redistributed under the terms of the GNU Public
11 * print_e2fsck_message() prints a message to the user, using
12 * compression techniques and expansions of abbreviations.
14 * The following % expansions are supported:
16 * %b <blk> block number
17 * %B <blkcount> integer
18 * %c <blk2> block number
19 * %Di <dirent>->ino inode number
20 * %Dn <dirent>->name string
21 * %Dr <dirent>->rec_len
22 * %Dl <dirent>->name_len
23 * %Dt <dirent>->filetype
24 * %d <dir> inode number
26 * %i <ino> inode number
27 * %Is <inode> -> i_size
28 * %IS <inode> -> i_extra_isize
29 * %Ib <inode> -> i_blocks
30 * %Il <inode> -> i_links_count
31 * %Im <inode> -> i_mode
32 * %IM <inode> -> i_mtime
33 * %IF <inode> -> i_faddr
34 * %If <inode> -> i_file_acl
35 * %Id <inode> -> i_dir_acl
36 * %Iu <inode> -> i_uid
37 * %Ig <inode> -> i_gid
38 * %j <ino2> inode number
39 * %m <com_err error message>
41 * %p ext2fs_get_pathname of directory <ino>
42 * %P ext2fs_get_pathname of <dirent>->ino with <ino2> as
43 * the containing directory. (If dirent is NULL
44 * then return the pathname of directory <ino2>)
45 * %q ext2fs_get_pathname of directory <dir>
46 * %Q ext2fs_get_pathname of directory <ino> with <dir> as
47 * the containing directory.
48 * %s <str> miscellaneous string
49 * %S backup superblock
50 * %X <num> hexadecimal format
52 * The following '@' expansions are supported:
54 * @a extended attribute
59 * @C conflicts with some other fs block
63 * @E Entry '%Dn' in %p (%i)
65 * @F for @i %i (%Q) is
67 * @h HTREE directory inode
94 #define _INLINE_ __inline__
100 * This structure defines the abbreviations used by the text strings
101 * below. The first character in the string is the index letter. An
102 * abbreviation of the form '@<i>' is expanded by looking up the index
103 * letter <i> in the table below.
105 static const char *abbrevs[] = {
106 N_("aextended attribute"),
107 N_("Aerror allocating"),
111 N_("Cconflicts with some other fs @b"),
118 N_("E@e '%Dn' in %p (%i)"),
120 N_("Ffor @i %i (%Q) is"),
138 * Give more user friendly names to the "special" inodes.
140 #define num_special_inodes 11
141 static const char *special_inode_name[] =
143 N_("<The NULL inode>"), /* 0 */
144 N_("<The bad blocks inode>"), /* 1 */
146 N_("<The ACL index inode>"), /* 3 */
147 N_("<The ACL data inode>"), /* 4 */
148 N_("<The boot loader inode>"), /* 5 */
149 N_("<The undelete directory inode>"), /* 6 */
150 N_("<The group descriptor inode>"), /* 7 */
151 N_("<The journal inode>"), /* 8 */
152 N_("<Reserved inode 9>"), /* 9 */
153 N_("<Reserved inode 10>"), /* 10 */
157 * This function does "safe" printing. It will convert non-printable
158 * ASCII characters using '^' and M- notation.
160 static void safe_print(const char *cp, int len)
173 if ((ch < 32) || (ch == 0x7f)) {
175 ch ^= 0x40; /* ^@, ^A, ^B; ^? for DEL */
183 * This function prints a pathname, using the ext2fs_get_pathname
186 static void print_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino)
191 if (!dir && (ino < num_special_inodes)) {
192 fputs(_(special_inode_name[ino]), stdout);
196 retval = ext2fs_get_pathname(fs, dir, ino, &path);
198 fputs("???", stdout);
200 safe_print(path, -1);
201 ext2fs_free_mem(&path);
206 * This function handles the '@' expansion. We allow recursive
207 * expansion; an @ expression can contain further '@' and '%'
210 static _INLINE_ void expand_at_expression(e2fsck_t ctx, char ch,
211 struct problem_context *pctx,
214 const char **cpp, *str;
216 /* Search for the abbreviation */
217 for (cpp = abbrevs; *cpp; cpp++) {
223 if (*first && islower(*str)) {
225 fputc(toupper(*str++), stdout);
227 print_e2fsck_message(ctx, str, pctx, *first);
233 * This function expands '%IX' expressions
235 static _INLINE_ void expand_inode_expression(char ch,
236 struct problem_context *ctx)
238 struct ext2_inode *inode;
239 struct ext2_inode_large *large_inode;
244 if (!ctx || !ctx->inode)
248 large_inode = (struct ext2_inode_large *) inode;
252 if (LINUX_S_ISDIR(inode->i_mode))
253 printf("%u", inode->i_size);
255 #ifdef EXT2_NO_64_TYPE
256 if (inode->i_size_high)
257 printf("0x%x%08x", inode->i_size_high,
260 printf("%u", inode->i_size);
262 printf("%llu", (inode->i_size |
263 ((__u64) inode->i_size_high << 32)));
268 printf("%u", large_inode->i_extra_isize);
271 printf("%u", inode->i_blocks);
274 printf("%d", inode->i_links_count);
277 printf("0%o", inode->i_mode);
280 /* The diet libc doesn't respect the TZ environemnt variable */
282 time_str = getenv("TZ");
285 do_gmt = !strcmp(time_str, "GMT");
288 time_str = asctime(do_gmt ? gmtime(&t) : localtime(&t));
289 printf("%.24s", time_str);
292 printf("%u", inode->i_faddr);
295 printf("%u", inode->i_file_acl);
298 printf("%u", (LINUX_S_ISDIR(inode->i_mode) ?
299 inode->i_dir_acl : 0));
302 printf("%d", (inode->i_uid |
303 (inode->osd2.linux2.l_i_uid_high << 16)));
306 printf("%d", (inode->i_gid |
307 (inode->osd2.linux2.l_i_gid_high << 16)));
317 * This function expands '%dX' expressions
319 static _INLINE_ void expand_dirent_expression(char ch,
320 struct problem_context *ctx)
322 struct ext2_dir_entry *dirent;
325 if (!ctx || !ctx->dirent)
328 dirent = ctx->dirent;
332 printf("%u", dirent->inode);
335 len = dirent->name_len & 0xFF;
336 if (len > EXT2_NAME_LEN)
338 if (len > dirent->rec_len)
339 len = dirent->rec_len;
340 safe_print(dirent->name, len);
343 printf("%u", dirent->rec_len);
346 printf("%u", dirent->name_len & 0xFF);
349 printf("%u", dirent->name_len >> 8);
358 static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
359 struct problem_context *ctx)
369 printf("%u", ctx->blk);
372 #ifdef EXT2_NO_64_TYPE
373 printf("%d", ctx->blkcount);
375 printf("%lld", ctx->blkcount);
379 printf("%u", ctx->blk2);
382 printf("%u", ctx->dir);
385 printf("%d", ctx->group);
388 printf("%u", ctx->ino);
391 printf("%u", ctx->ino2);
394 printf("%s", error_message(ctx->errcode));
397 #ifdef EXT2_NO_64_TYPE
398 printf("%u", ctx->num);
400 printf("%llu", ctx->num);
404 print_pathname(fs, ctx->ino, 0);
407 print_pathname(fs, ctx->ino2,
408 ctx->dirent ? ctx->dirent->inode : 0);
411 print_pathname(fs, ctx->dir, 0);
414 print_pathname(fs, ctx->dir, ctx->ino);
417 printf("%d", get_backup_sb(NULL, fs, NULL, NULL));
420 printf("%s", ctx->str ? ctx->str : "NULL");
423 #ifdef EXT2_NO_64_TYPE
424 printf("0x%x", ctx->num);
426 printf("0x%llx", ctx->num);
436 void print_e2fsck_message(e2fsck_t ctx, const char *msg,
437 struct problem_context *pctx, int first)
439 ext2_filsys fs = ctx->fs;
443 e2fsck_clear_progbar(ctx);
444 for (cp = msg; *cp; cp++) {
447 expand_at_expression(ctx, *cp, pctx, &first);
448 } else if (cp[0] == '%' && cp[1] == 'I') {
450 expand_inode_expression(*cp, pctx);
451 } else if (cp[0] == '%' && cp[1] == 'D') {
453 expand_dirent_expression(*cp, pctx);
454 } else if ((cp[0] == '%')) {
456 expand_percent_expression(fs, *cp, pctx);
458 for (i=0; cp[i]; i++)
459 if ((cp[i] == '@') || cp[i] == '%')
461 printf("%.*s", i, cp);