2 #include "object-store.h"
3 #include "repository.h"
16 #include "submodule-config.h"
18 #include "credential.h"
21 static struct oidset gitmodules_found
= OIDSET_INIT
;
22 static struct oidset gitmodules_done
= OIDSET_INIT
;
27 #define FOREACH_MSG_ID(FUNC) \
29 FUNC(NUL_IN_HEADER, FATAL) \
30 FUNC(UNTERMINATED_HEADER, FATAL) \
32 FUNC(BAD_DATE, ERROR) \
33 FUNC(BAD_DATE_OVERFLOW, ERROR) \
34 FUNC(BAD_EMAIL, ERROR) \
35 FUNC(BAD_NAME, ERROR) \
36 FUNC(BAD_OBJECT_SHA1, ERROR) \
37 FUNC(BAD_PARENT_SHA1, ERROR) \
38 FUNC(BAD_TAG_OBJECT, ERROR) \
39 FUNC(BAD_TIMEZONE, ERROR) \
40 FUNC(BAD_TREE, ERROR) \
41 FUNC(BAD_TREE_SHA1, ERROR) \
42 FUNC(BAD_TYPE, ERROR) \
43 FUNC(DUPLICATE_ENTRIES, ERROR) \
44 FUNC(MISSING_AUTHOR, ERROR) \
45 FUNC(MISSING_COMMITTER, ERROR) \
46 FUNC(MISSING_EMAIL, ERROR) \
47 FUNC(MISSING_GRAFT, ERROR) \
48 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
49 FUNC(MISSING_OBJECT, ERROR) \
50 FUNC(MISSING_PARENT, ERROR) \
51 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
52 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
53 FUNC(MISSING_TAG, ERROR) \
54 FUNC(MISSING_TAG_ENTRY, ERROR) \
55 FUNC(MISSING_TAG_OBJECT, ERROR) \
56 FUNC(MISSING_TREE, ERROR) \
57 FUNC(MISSING_TREE_OBJECT, ERROR) \
58 FUNC(MISSING_TYPE, ERROR) \
59 FUNC(MISSING_TYPE_ENTRY, ERROR) \
60 FUNC(MULTIPLE_AUTHORS, ERROR) \
61 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
62 FUNC(TREE_NOT_SORTED, ERROR) \
63 FUNC(UNKNOWN_TYPE, ERROR) \
64 FUNC(ZERO_PADDED_DATE, ERROR) \
65 FUNC(GITMODULES_MISSING, ERROR) \
66 FUNC(GITMODULES_BLOB, ERROR) \
67 FUNC(GITMODULES_LARGE, ERROR) \
68 FUNC(GITMODULES_NAME, ERROR) \
69 FUNC(GITMODULES_SYMLINK, ERROR) \
70 FUNC(GITMODULES_URL, ERROR) \
71 FUNC(GITMODULES_PATH, ERROR) \
72 FUNC(GITMODULES_UPDATE, ERROR) \
74 FUNC(BAD_FILEMODE, WARN) \
75 FUNC(EMPTY_NAME, WARN) \
76 FUNC(FULL_PATHNAME, WARN) \
78 FUNC(HAS_DOTDOT, WARN) \
79 FUNC(HAS_DOTGIT, WARN) \
80 FUNC(NULL_SHA1, WARN) \
81 FUNC(ZERO_PADDED_FILEMODE, WARN) \
82 FUNC(NUL_IN_COMMIT, WARN) \
83 /* infos (reported as warnings, but ignored by default) */ \
84 FUNC(GITMODULES_PARSE, INFO) \
85 FUNC(BAD_TAG_NAME, INFO) \
86 FUNC(MISSING_TAGGER_ENTRY, INFO)
88 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
90 FOREACH_MSG_ID(MSG_ID
)
96 #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type },
98 const char *id_string
;
99 const char *downcased
;
100 const char *camelcased
;
102 } msg_id_info
[FSCK_MSG_MAX
+ 1] = {
103 FOREACH_MSG_ID(MSG_ID
)
104 { NULL
, NULL
, NULL
, -1 }
108 static void prepare_msg_ids(void)
112 if (msg_id_info
[0].downcased
)
115 /* convert id_string to lower case, without underscores. */
116 for (i
= 0; i
< FSCK_MSG_MAX
; i
++) {
117 const char *p
= msg_id_info
[i
].id_string
;
119 char *q
= xmalloc(len
);
121 msg_id_info
[i
].downcased
= q
;
126 *(q
)++ = tolower(*(p
)++);
129 p
= msg_id_info
[i
].id_string
;
131 msg_id_info
[i
].camelcased
= q
;
138 *q
++ = tolower(*p
++);
145 static int parse_msg_id(const char *text
)
151 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
152 if (!strcmp(text
, msg_id_info
[i
].downcased
))
158 void list_config_fsck_msg_ids(struct string_list
*list
, const char *prefix
)
164 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
165 list_config_item(list
, prefix
, msg_id_info
[i
].camelcased
);
168 static int fsck_msg_type(enum fsck_msg_id msg_id
,
169 struct fsck_options
*options
)
173 assert(msg_id
>= 0 && msg_id
< FSCK_MSG_MAX
);
175 if (options
->msg_type
)
176 msg_type
= options
->msg_type
[msg_id
];
178 msg_type
= msg_id_info
[msg_id
].msg_type
;
179 if (options
->strict
&& msg_type
== FSCK_WARN
)
180 msg_type
= FSCK_ERROR
;
186 static void init_skiplist(struct fsck_options
*options
, const char *path
)
189 struct strbuf sb
= STRBUF_INIT
;
190 struct object_id oid
;
192 fp
= fopen(path
, "r");
194 die("Could not open skip list: %s", path
);
195 while (!strbuf_getline(&sb
, fp
)) {
200 * Allow trailing comments, leading whitespace
201 * (including before commits), and empty or whitespace
204 hash
= strchr(sb
.buf
, '#');
206 strbuf_setlen(&sb
, hash
- sb
.buf
);
211 if (parse_oid_hex(sb
.buf
, &oid
, &p
) || *p
!= '\0')
212 die("Invalid SHA-1: %s", sb
.buf
);
213 oidset_insert(&options
->skiplist
, &oid
);
216 die_errno("Could not read '%s'", path
);
221 static int parse_msg_type(const char *str
)
223 if (!strcmp(str
, "error"))
225 else if (!strcmp(str
, "warn"))
227 else if (!strcmp(str
, "ignore"))
230 die("Unknown fsck message type: '%s'", str
);
233 int is_valid_msg_type(const char *msg_id
, const char *msg_type
)
235 if (parse_msg_id(msg_id
) < 0)
237 parse_msg_type(msg_type
);
241 void fsck_set_msg_type(struct fsck_options
*options
,
242 const char *msg_id
, const char *msg_type
)
244 int id
= parse_msg_id(msg_id
), type
;
247 die("Unhandled message id: %s", msg_id
);
248 type
= parse_msg_type(msg_type
);
250 if (type
!= FSCK_ERROR
&& msg_id_info
[id
].msg_type
== FSCK_FATAL
)
251 die("Cannot demote %s to %s", msg_id
, msg_type
);
253 if (!options
->msg_type
) {
256 ALLOC_ARRAY(msg_type
, FSCK_MSG_MAX
);
257 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
258 msg_type
[i
] = fsck_msg_type(i
, options
);
259 options
->msg_type
= msg_type
;
262 options
->msg_type
[id
] = type
;
265 void fsck_set_msg_types(struct fsck_options
*options
, const char *values
)
267 char *buf
= xstrdup(values
), *to_free
= buf
;
271 int len
= strcspn(buf
, " ,|"), equal
;
281 equal
< len
&& buf
[equal
] != '=' && buf
[equal
] != ':';
283 buf
[equal
] = tolower(buf
[equal
]);
286 if (!strcmp(buf
, "skiplist")) {
288 die("skiplist requires a path");
289 init_skiplist(options
, buf
+ equal
+ 1);
295 die("Missing '=': '%s'", buf
);
297 fsck_set_msg_type(options
, buf
, buf
+ equal
+ 1);
303 static void append_msg_id(struct strbuf
*sb
, const char *msg_id
)
306 char c
= *(msg_id
)++;
311 strbuf_addch(sb
, tolower(c
));
314 strbuf_addch(sb
, *(msg_id
)++);
318 strbuf_addstr(sb
, ": ");
321 static int object_on_skiplist(struct fsck_options
*opts
, struct object
*obj
)
323 return opts
&& obj
&& oidset_contains(&opts
->skiplist
, &obj
->oid
);
326 __attribute__((format (printf
, 4, 5)))
327 static int report(struct fsck_options
*options
, struct object
*object
,
328 enum fsck_msg_id id
, const char *fmt
, ...)
331 struct strbuf sb
= STRBUF_INIT
;
332 int msg_type
= fsck_msg_type(id
, options
), result
;
334 if (msg_type
== FSCK_IGNORE
)
337 if (object_on_skiplist(options
, object
))
340 if (msg_type
== FSCK_FATAL
)
341 msg_type
= FSCK_ERROR
;
342 else if (msg_type
== FSCK_INFO
)
343 msg_type
= FSCK_WARN
;
345 append_msg_id(&sb
, msg_id_info
[id
].id_string
);
348 strbuf_vaddf(&sb
, fmt
, ap
);
349 result
= options
->error_func(options
, object
, msg_type
, sb
.buf
);
356 static char *get_object_name(struct fsck_options
*options
, struct object
*obj
)
358 if (!options
->object_names
)
360 return lookup_decoration(options
->object_names
, obj
);
363 static void put_object_name(struct fsck_options
*options
, struct object
*obj
,
364 const char *fmt
, ...)
367 struct strbuf buf
= STRBUF_INIT
;
370 if (!options
->object_names
)
372 existing
= lookup_decoration(options
->object_names
, obj
);
376 strbuf_vaddf(&buf
, fmt
, ap
);
377 add_decoration(options
->object_names
, obj
, strbuf_detach(&buf
, NULL
));
381 static const char *describe_object(struct fsck_options
*o
, struct object
*obj
)
383 static struct strbuf buf
= STRBUF_INIT
;
387 strbuf_addstr(&buf
, oid_to_hex(&obj
->oid
));
388 if (o
->object_names
&& (name
= lookup_decoration(o
->object_names
, obj
)))
389 strbuf_addf(&buf
, " (%s)", name
);
394 static int fsck_walk_tree(struct tree
*tree
, void *data
, struct fsck_options
*options
)
396 struct tree_desc desc
;
397 struct name_entry entry
;
401 if (parse_tree(tree
))
404 name
= get_object_name(options
, &tree
->object
);
405 if (init_tree_desc_gently(&desc
, tree
->buffer
, tree
->size
))
407 while (tree_entry_gently(&desc
, &entry
)) {
411 if (S_ISGITLINK(entry
.mode
))
414 if (S_ISDIR(entry
.mode
)) {
415 obj
= (struct object
*)lookup_tree(the_repository
, &entry
.oid
);
417 put_object_name(options
, obj
, "%s%s/", name
,
419 result
= options
->walk(obj
, OBJ_TREE
, data
, options
);
421 else if (S_ISREG(entry
.mode
) || S_ISLNK(entry
.mode
)) {
422 obj
= (struct object
*)lookup_blob(the_repository
, &entry
.oid
);
424 put_object_name(options
, obj
, "%s%s", name
,
426 result
= options
->walk(obj
, OBJ_BLOB
, data
, options
);
429 result
= error("in tree %s: entry %s has bad mode %.6o",
430 describe_object(options
, &tree
->object
), entry
.path
, entry
.mode
);
440 static int fsck_walk_commit(struct commit
*commit
, void *data
, struct fsck_options
*options
)
442 int counter
= 0, generation
= 0, name_prefix_len
= 0;
443 struct commit_list
*parents
;
448 if (parse_commit(commit
))
451 name
= get_object_name(options
, &commit
->object
);
453 put_object_name(options
, &get_commit_tree(commit
)->object
,
456 result
= options
->walk((struct object
*)get_commit_tree(commit
),
457 OBJ_TREE
, data
, options
);
462 parents
= commit
->parents
;
463 if (name
&& parents
) {
464 int len
= strlen(name
), power
;
466 if (len
&& name
[len
- 1] == '^') {
468 name_prefix_len
= len
- 1;
470 else { /* parse ~<generation> suffix */
471 for (generation
= 0, power
= 1;
472 len
&& isdigit(name
[len
- 1]);
474 generation
+= power
* (name
[--len
] - '0');
475 if (power
> 1 && len
&& name
[len
- 1] == '~')
476 name_prefix_len
= len
- 1;
482 struct object
*obj
= &parents
->item
->object
;
485 put_object_name(options
, obj
, "%s^%d",
487 else if (generation
> 0)
488 put_object_name(options
, obj
, "%.*s~%d",
489 name_prefix_len
, name
, generation
+ 1);
491 put_object_name(options
, obj
, "%s^", name
);
493 result
= options
->walk((struct object
*)parents
->item
, OBJ_COMMIT
, data
, options
);
498 parents
= parents
->next
;
503 static int fsck_walk_tag(struct tag
*tag
, void *data
, struct fsck_options
*options
)
505 char *name
= get_object_name(options
, &tag
->object
);
510 put_object_name(options
, tag
->tagged
, "%s", name
);
511 return options
->walk(tag
->tagged
, OBJ_ANY
, data
, options
);
514 int fsck_walk(struct object
*obj
, void *data
, struct fsck_options
*options
)
519 if (obj
->type
== OBJ_NONE
)
520 parse_object(the_repository
, &obj
->oid
);
526 return fsck_walk_tree((struct tree
*)obj
, data
, options
);
528 return fsck_walk_commit((struct commit
*)obj
, data
, options
);
530 return fsck_walk_tag((struct tag
*)obj
, data
, options
);
532 error("Unknown object type for %s", describe_object(options
, obj
));
538 * The entries in a tree are ordered in the _path_ order,
539 * which means that a directory entry is ordered by adding
540 * a slash to the end of it.
542 * So a directory called "a" is ordered _after_ a file
543 * called "a.c", because "a/" sorts after "a.c".
545 #define TREE_UNORDERED (-1)
546 #define TREE_HAS_DUPS (-2)
548 static int verify_ordered(unsigned mode1
, const char *name1
, unsigned mode2
, const char *name2
)
550 int len1
= strlen(name1
);
551 int len2
= strlen(name2
);
552 int len
= len1
< len2
? len1
: len2
;
553 unsigned char c1
, c2
;
556 cmp
= memcmp(name1
, name2
, len
);
560 return TREE_UNORDERED
;
563 * Ok, the first <len> characters are the same.
564 * Now we need to order the next one, but turn
565 * a '\0' into a '/' for a directory entry.
571 * git-write-tree used to write out a nonsense tree that has
572 * entries with the same name, one blob and one tree. Make
573 * sure we do not have duplicate entries.
575 return TREE_HAS_DUPS
;
576 if (!c1
&& S_ISDIR(mode1
))
578 if (!c2
&& S_ISDIR(mode2
))
580 return c1
< c2
? 0 : TREE_UNORDERED
;
583 static int fsck_tree(struct tree
*item
, struct fsck_options
*options
)
586 int has_null_sha1
= 0;
587 int has_full_path
= 0;
588 int has_empty_name
= 0;
592 int has_zero_pad
= 0;
593 int has_bad_modes
= 0;
594 int has_dup_entries
= 0;
595 int not_properly_sorted
= 0;
596 struct tree_desc desc
;
600 if (init_tree_desc_gently(&desc
, item
->buffer
, item
->size
)) {
601 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
610 const char *name
, *backslash
;
611 const struct object_id
*oid
;
613 oid
= tree_entry_extract(&desc
, &name
, &mode
);
615 has_null_sha1
|= is_null_oid(oid
);
616 has_full_path
|= !!strchr(name
, '/');
617 has_empty_name
|= !*name
;
618 has_dot
|= !strcmp(name
, ".");
619 has_dotdot
|= !strcmp(name
, "..");
620 has_dotgit
|= is_hfs_dotgit(name
) || is_ntfs_dotgit(name
);
621 has_zero_pad
|= *(char *)desc
.buffer
== '0';
623 if (is_hfs_dotgitmodules(name
) || is_ntfs_dotgitmodules(name
)) {
625 oidset_insert(&gitmodules_found
, oid
);
627 retval
+= report(options
, &item
->object
,
628 FSCK_MSG_GITMODULES_SYMLINK
,
629 ".gitmodules is a symbolic link");
632 if ((backslash
= strchr(name
, '\\'))) {
635 has_dotgit
|= is_ntfs_dotgit(backslash
);
636 if (is_ntfs_dotgitmodules(backslash
)) {
638 oidset_insert(&gitmodules_found
, oid
);
640 retval
+= report(options
, &item
->object
,
641 FSCK_MSG_GITMODULES_SYMLINK
,
642 ".gitmodules is a symbolic link");
644 backslash
= strchr(backslash
, '\\');
648 if (update_tree_entry_gently(&desc
)) {
649 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
664 * This is nonstandard, but we had a few of these
665 * early on when we honored the full set of mode
669 if (!options
->strict
)
677 switch (verify_ordered(o_mode
, o_name
, mode
, name
)) {
679 not_properly_sorted
= 1;
694 retval
+= report(options
, &item
->object
, FSCK_MSG_NULL_SHA1
, "contains entries pointing to null sha1");
696 retval
+= report(options
, &item
->object
, FSCK_MSG_FULL_PATHNAME
, "contains full pathnames");
698 retval
+= report(options
, &item
->object
, FSCK_MSG_EMPTY_NAME
, "contains empty pathname");
700 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOT
, "contains '.'");
702 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTDOT
, "contains '..'");
704 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTGIT
, "contains '.git'");
706 retval
+= report(options
, &item
->object
, FSCK_MSG_ZERO_PADDED_FILEMODE
, "contains zero-padded file modes");
708 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_FILEMODE
, "contains bad file modes");
710 retval
+= report(options
, &item
->object
, FSCK_MSG_DUPLICATE_ENTRIES
, "contains duplicate file entries");
711 if (not_properly_sorted
)
712 retval
+= report(options
, &item
->object
, FSCK_MSG_TREE_NOT_SORTED
, "not properly sorted");
716 static int verify_headers(const void *data
, unsigned long size
,
717 struct object
*obj
, struct fsck_options
*options
)
719 const char *buffer
= (const char *)data
;
722 for (i
= 0; i
< size
; i
++) {
725 return report(options
, obj
,
726 FSCK_MSG_NUL_IN_HEADER
,
727 "unterminated header: NUL at offset %ld", i
);
729 if (i
+ 1 < size
&& buffer
[i
+ 1] == '\n')
735 * We did not find double-LF that separates the header
736 * and the body. Not having a body is not a crime but
737 * we do want to see the terminating LF for the last header
740 if (size
&& buffer
[size
- 1] == '\n')
743 return report(options
, obj
,
744 FSCK_MSG_UNTERMINATED_HEADER
, "unterminated header");
747 static int fsck_ident(const char **ident
, struct object
*obj
, struct fsck_options
*options
)
749 const char *p
= *ident
;
752 *ident
= strchrnul(*ident
, '\n');
757 return report(options
, obj
, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
758 p
+= strcspn(p
, "<>\n");
760 return report(options
, obj
, FSCK_MSG_BAD_NAME
, "invalid author/committer line - bad name");
762 return report(options
, obj
, FSCK_MSG_MISSING_EMAIL
, "invalid author/committer line - missing email");
764 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
766 p
+= strcspn(p
, "<>\n");
768 return report(options
, obj
, FSCK_MSG_BAD_EMAIL
, "invalid author/committer line - bad email");
771 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_DATE
, "invalid author/committer line - missing space before date");
773 if (*p
== '0' && p
[1] != ' ')
774 return report(options
, obj
, FSCK_MSG_ZERO_PADDED_DATE
, "invalid author/committer line - zero-padded date");
775 if (date_overflows(parse_timestamp(p
, &end
, 10)))
776 return report(options
, obj
, FSCK_MSG_BAD_DATE_OVERFLOW
, "invalid author/committer line - date causes integer overflow");
777 if ((end
== p
|| *end
!= ' '))
778 return report(options
, obj
, FSCK_MSG_BAD_DATE
, "invalid author/committer line - bad date");
780 if ((*p
!= '+' && *p
!= '-') ||
786 return report(options
, obj
, FSCK_MSG_BAD_TIMEZONE
, "invalid author/committer line - bad time zone");
791 static int fsck_commit_buffer(struct commit
*commit
, const char *buffer
,
792 unsigned long size
, struct fsck_options
*options
)
794 struct object_id tree_oid
, oid
;
795 struct commit_graft
*graft
;
796 unsigned parent_count
, parent_line_count
= 0, author_count
;
798 const char *buffer_begin
= buffer
;
801 if (verify_headers(buffer
, size
, &commit
->object
, options
))
804 if (!skip_prefix(buffer
, "tree ", &buffer
))
805 return report(options
, &commit
->object
, FSCK_MSG_MISSING_TREE
, "invalid format - expected 'tree' line");
806 if (parse_oid_hex(buffer
, &tree_oid
, &p
) || *p
!= '\n') {
807 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE_SHA1
, "invalid 'tree' line format - bad sha1");
812 while (skip_prefix(buffer
, "parent ", &buffer
)) {
813 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n') {
814 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_PARENT_SHA1
, "invalid 'parent' line format - bad sha1");
821 graft
= lookup_commit_graft(the_repository
, &commit
->object
.oid
);
822 parent_count
= commit_list_count(commit
->parents
);
824 if (graft
->nr_parent
== -1 && !parent_count
)
825 ; /* shallow commit */
826 else if (graft
->nr_parent
!= parent_count
) {
827 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_GRAFT
, "graft objects missing");
832 if (parent_count
!= parent_line_count
) {
833 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_PARENT
, "parent objects missing");
839 while (skip_prefix(buffer
, "author ", &buffer
)) {
841 err
= fsck_ident(&buffer
, &commit
->object
, options
);
845 if (author_count
< 1)
846 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_AUTHOR
, "invalid format - expected 'author' line");
847 else if (author_count
> 1)
848 err
= report(options
, &commit
->object
, FSCK_MSG_MULTIPLE_AUTHORS
, "invalid format - multiple 'author' lines");
851 if (!skip_prefix(buffer
, "committer ", &buffer
))
852 return report(options
, &commit
->object
, FSCK_MSG_MISSING_COMMITTER
, "invalid format - expected 'committer' line");
853 err
= fsck_ident(&buffer
, &commit
->object
, options
);
856 if (!get_commit_tree(commit
)) {
857 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE
, "could not load commit's tree %s", oid_to_hex(&tree_oid
));
861 if (memchr(buffer_begin
, '\0', size
)) {
862 err
= report(options
, &commit
->object
, FSCK_MSG_NUL_IN_COMMIT
,
863 "NUL byte in the commit object body");
870 static int fsck_commit(struct commit
*commit
, const char *data
,
871 unsigned long size
, struct fsck_options
*options
)
873 const char *buffer
= data
? data
: get_commit_buffer(commit
, &size
);
874 int ret
= fsck_commit_buffer(commit
, buffer
, size
, options
);
876 unuse_commit_buffer(commit
, buffer
);
880 static int fsck_tag_buffer(struct tag
*tag
, const char *data
,
881 unsigned long size
, struct fsck_options
*options
)
883 struct object_id oid
;
886 char *to_free
= NULL
, *eol
;
887 struct strbuf sb
= STRBUF_INIT
;
893 enum object_type type
;
896 read_object_file(&tag
->object
.oid
, &type
, &size
);
898 return report(options
, &tag
->object
,
899 FSCK_MSG_MISSING_TAG_OBJECT
,
900 "cannot read tag object");
902 if (type
!= OBJ_TAG
) {
903 ret
= report(options
, &tag
->object
,
904 FSCK_MSG_TAG_OBJECT_NOT_TAG
,
905 "expected tag got %s",
911 ret
= verify_headers(buffer
, size
, &tag
->object
, options
);
915 if (!skip_prefix(buffer
, "object ", &buffer
)) {
916 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_OBJECT
, "invalid format - expected 'object' line");
919 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n') {
920 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_OBJECT_SHA1
, "invalid 'object' line format - bad sha1");
926 if (!skip_prefix(buffer
, "type ", &buffer
)) {
927 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE_ENTRY
, "invalid format - expected 'type' line");
930 eol
= strchr(buffer
, '\n');
932 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE
, "invalid format - unexpected end after 'type' line");
935 if (type_from_string_gently(buffer
, eol
- buffer
, 1) < 0)
936 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TYPE
, "invalid 'type' value");
941 if (!skip_prefix(buffer
, "tag ", &buffer
)) {
942 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG_ENTRY
, "invalid format - expected 'tag' line");
945 eol
= strchr(buffer
, '\n');
947 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG
, "invalid format - unexpected end after 'type' line");
950 strbuf_addf(&sb
, "refs/tags/%.*s", (int)(eol
- buffer
), buffer
);
951 if (check_refname_format(sb
.buf
, 0)) {
952 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_NAME
,
953 "invalid 'tag' name: %.*s",
954 (int)(eol
- buffer
), buffer
);
960 if (!skip_prefix(buffer
, "tagger ", &buffer
)) {
961 /* early tags do not contain 'tagger' lines; warn only */
962 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAGGER_ENTRY
, "invalid format - expected 'tagger' line");
967 ret
= fsck_ident(&buffer
, &tag
->object
, options
);
975 static int fsck_tag(struct tag
*tag
, const char *data
,
976 unsigned long size
, struct fsck_options
*options
)
978 struct object
*tagged
= tag
->tagged
;
981 return report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_OBJECT
, "could not load tagged object");
983 return fsck_tag_buffer(tag
, data
, size
, options
);
986 static int check_submodule_url(const char *url
)
988 struct credential c
= CREDENTIAL_INIT
;
991 if (looks_like_command_line_option(url
))
994 ret
= credential_from_url_gently(&c
, url
, 1);
995 credential_clear(&c
);
999 struct fsck_gitmodules_data
{
1001 struct fsck_options
*options
;
1005 static int fsck_gitmodules_fn(const char *var
, const char *value
, void *vdata
)
1007 struct fsck_gitmodules_data
*data
= vdata
;
1008 const char *subsection
, *key
;
1012 if (parse_config_key(var
, "submodule", &subsection
, &subsection_len
, &key
) < 0 ||
1016 name
= xmemdupz(subsection
, subsection_len
);
1017 if (check_submodule_name(name
) < 0)
1018 data
->ret
|= report(data
->options
, data
->obj
,
1019 FSCK_MSG_GITMODULES_NAME
,
1020 "disallowed submodule name: %s",
1022 if (!strcmp(key
, "url") && value
&&
1023 check_submodule_url(value
) < 0)
1024 data
->ret
|= report(data
->options
, data
->obj
,
1025 FSCK_MSG_GITMODULES_URL
,
1026 "disallowed submodule url: %s",
1028 if (!strcmp(key
, "path") && value
&&
1029 looks_like_command_line_option(value
))
1030 data
->ret
|= report(data
->options
, data
->obj
,
1031 FSCK_MSG_GITMODULES_PATH
,
1032 "disallowed submodule path: %s",
1034 if (!strcmp(key
, "update") && value
&&
1035 parse_submodule_update_type(value
) == SM_UPDATE_COMMAND
)
1036 data
->ret
|= report(data
->options
, data
->obj
,
1037 FSCK_MSG_GITMODULES_UPDATE
,
1038 "disallowed submodule update setting: %s",
1045 static int fsck_blob(struct blob
*blob
, const char *buf
,
1046 unsigned long size
, struct fsck_options
*options
)
1048 struct fsck_gitmodules_data data
;
1049 struct config_options config_opts
= { 0 };
1051 if (!oidset_contains(&gitmodules_found
, &blob
->object
.oid
))
1053 oidset_insert(&gitmodules_done
, &blob
->object
.oid
);
1055 if (object_on_skiplist(options
, &blob
->object
))
1060 * A missing buffer here is a sign that the caller found the
1061 * blob too gigantic to load into memory. Let's just consider
1064 return report(options
, &blob
->object
,
1065 FSCK_MSG_GITMODULES_LARGE
,
1066 ".gitmodules too large to parse");
1069 data
.obj
= &blob
->object
;
1070 data
.options
= options
;
1072 config_opts
.error_action
= CONFIG_ERROR_SILENT
;
1073 if (git_config_from_mem(fsck_gitmodules_fn
, CONFIG_ORIGIN_BLOB
,
1074 ".gitmodules", buf
, size
, &data
, &config_opts
))
1075 data
.ret
|= report(options
, &blob
->object
,
1076 FSCK_MSG_GITMODULES_PARSE
,
1077 "could not parse gitmodules blob");
1082 int fsck_object(struct object
*obj
, void *data
, unsigned long size
,
1083 struct fsck_options
*options
)
1086 return report(options
, obj
, FSCK_MSG_BAD_OBJECT_SHA1
, "no valid object to fsck");
1088 if (obj
->type
== OBJ_BLOB
)
1089 return fsck_blob((struct blob
*)obj
, data
, size
, options
);
1090 if (obj
->type
== OBJ_TREE
)
1091 return fsck_tree((struct tree
*) obj
, options
);
1092 if (obj
->type
== OBJ_COMMIT
)
1093 return fsck_commit((struct commit
*) obj
, (const char *) data
,
1095 if (obj
->type
== OBJ_TAG
)
1096 return fsck_tag((struct tag
*) obj
, (const char *) data
,
1099 return report(options
, obj
, FSCK_MSG_UNKNOWN_TYPE
, "unknown type '%d' (internal fsck error)",
1103 int fsck_error_function(struct fsck_options
*o
,
1104 struct object
*obj
, int msg_type
, const char *message
)
1106 if (msg_type
== FSCK_WARN
) {
1107 warning("object %s: %s", describe_object(o
, obj
), message
);
1110 error("object %s: %s", describe_object(o
, obj
), message
);
1114 int fsck_finish(struct fsck_options
*options
)
1117 struct oidset_iter iter
;
1118 const struct object_id
*oid
;
1120 oidset_iter_init(&gitmodules_found
, &iter
);
1121 while ((oid
= oidset_iter_next(&iter
))) {
1123 enum object_type type
;
1127 if (oidset_contains(&gitmodules_done
, oid
))
1130 blob
= lookup_blob(the_repository
, oid
);
1132 struct object
*obj
= lookup_unknown_object(oid
->hash
);
1133 ret
|= report(options
, obj
,
1134 FSCK_MSG_GITMODULES_BLOB
,
1135 "non-blob found at .gitmodules");
1139 buf
= read_object_file(oid
, &type
, &size
);
1141 if (is_promisor_object(&blob
->object
.oid
))
1143 ret
|= report(options
, &blob
->object
,
1144 FSCK_MSG_GITMODULES_MISSING
,
1145 "unable to read .gitmodules blob");
1149 if (type
== OBJ_BLOB
)
1150 ret
|= fsck_blob(blob
, buf
, size
, options
);
1152 ret
|= report(options
, &blob
->object
,
1153 FSCK_MSG_GITMODULES_BLOB
,
1154 "non-blob found at .gitmodules");
1159 oidset_clear(&gitmodules_found
);
1160 oidset_clear(&gitmodules_done
);