2 #include "object-store.h"
3 #include "repository.h"
13 #include "sha1-array.h"
17 #include "submodule-config.h"
19 #include "credential.h"
22 static struct oidset gitmodules_found
= OIDSET_INIT
;
23 static struct oidset gitmodules_done
= OIDSET_INIT
;
28 #define FOREACH_MSG_ID(FUNC) \
30 FUNC(NUL_IN_HEADER, FATAL) \
31 FUNC(UNTERMINATED_HEADER, FATAL) \
33 FUNC(BAD_DATE, ERROR) \
34 FUNC(BAD_DATE_OVERFLOW, ERROR) \
35 FUNC(BAD_EMAIL, ERROR) \
36 FUNC(BAD_NAME, ERROR) \
37 FUNC(BAD_OBJECT_SHA1, ERROR) \
38 FUNC(BAD_PARENT_SHA1, ERROR) \
39 FUNC(BAD_TAG_OBJECT, ERROR) \
40 FUNC(BAD_TIMEZONE, ERROR) \
41 FUNC(BAD_TREE, ERROR) \
42 FUNC(BAD_TREE_SHA1, ERROR) \
43 FUNC(BAD_TYPE, ERROR) \
44 FUNC(DUPLICATE_ENTRIES, ERROR) \
45 FUNC(MISSING_AUTHOR, ERROR) \
46 FUNC(MISSING_COMMITTER, ERROR) \
47 FUNC(MISSING_EMAIL, ERROR) \
48 FUNC(MISSING_GRAFT, ERROR) \
49 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
50 FUNC(MISSING_OBJECT, ERROR) \
51 FUNC(MISSING_PARENT, ERROR) \
52 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
53 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
54 FUNC(MISSING_TAG, ERROR) \
55 FUNC(MISSING_TAG_ENTRY, ERROR) \
56 FUNC(MISSING_TAG_OBJECT, ERROR) \
57 FUNC(MISSING_TREE, ERROR) \
58 FUNC(MISSING_TREE_OBJECT, ERROR) \
59 FUNC(MISSING_TYPE, ERROR) \
60 FUNC(MISSING_TYPE_ENTRY, ERROR) \
61 FUNC(MULTIPLE_AUTHORS, ERROR) \
62 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
63 FUNC(TREE_NOT_SORTED, ERROR) \
64 FUNC(UNKNOWN_TYPE, ERROR) \
65 FUNC(ZERO_PADDED_DATE, ERROR) \
66 FUNC(GITMODULES_MISSING, ERROR) \
67 FUNC(GITMODULES_BLOB, ERROR) \
68 FUNC(GITMODULES_LARGE, ERROR) \
69 FUNC(GITMODULES_NAME, ERROR) \
70 FUNC(GITMODULES_SYMLINK, ERROR) \
71 FUNC(GITMODULES_URL, ERROR) \
72 FUNC(GITMODULES_PATH, ERROR) \
73 FUNC(GITMODULES_UPDATE, ERROR) \
75 FUNC(BAD_FILEMODE, WARN) \
76 FUNC(EMPTY_NAME, WARN) \
77 FUNC(FULL_PATHNAME, WARN) \
79 FUNC(HAS_DOTDOT, WARN) \
80 FUNC(HAS_DOTGIT, WARN) \
81 FUNC(NULL_SHA1, WARN) \
82 FUNC(ZERO_PADDED_FILEMODE, WARN) \
83 FUNC(NUL_IN_COMMIT, WARN) \
84 /* infos (reported as warnings, but ignored by default) */ \
85 FUNC(GITMODULES_PARSE, INFO) \
86 FUNC(BAD_TAG_NAME, INFO) \
87 FUNC(MISSING_TAGGER_ENTRY, INFO)
89 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
91 FOREACH_MSG_ID(MSG_ID
)
97 #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type },
99 const char *id_string
;
100 const char *downcased
;
101 const char *camelcased
;
103 } msg_id_info
[FSCK_MSG_MAX
+ 1] = {
104 FOREACH_MSG_ID(MSG_ID
)
105 { NULL
, NULL
, NULL
, -1 }
109 static void prepare_msg_ids(void)
113 if (msg_id_info
[0].downcased
)
116 /* convert id_string to lower case, without underscores. */
117 for (i
= 0; i
< FSCK_MSG_MAX
; i
++) {
118 const char *p
= msg_id_info
[i
].id_string
;
120 char *q
= xmalloc(len
);
122 msg_id_info
[i
].downcased
= q
;
127 *(q
)++ = tolower(*(p
)++);
130 p
= msg_id_info
[i
].id_string
;
132 msg_id_info
[i
].camelcased
= q
;
139 *q
++ = tolower(*p
++);
146 static int parse_msg_id(const char *text
)
152 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
153 if (!strcmp(text
, msg_id_info
[i
].downcased
))
159 void list_config_fsck_msg_ids(struct string_list
*list
, const char *prefix
)
165 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
166 list_config_item(list
, prefix
, msg_id_info
[i
].camelcased
);
169 static int fsck_msg_type(enum fsck_msg_id msg_id
,
170 struct fsck_options
*options
)
174 assert(msg_id
>= 0 && msg_id
< FSCK_MSG_MAX
);
176 if (options
->msg_type
)
177 msg_type
= options
->msg_type
[msg_id
];
179 msg_type
= msg_id_info
[msg_id
].msg_type
;
180 if (options
->strict
&& msg_type
== FSCK_WARN
)
181 msg_type
= FSCK_ERROR
;
187 static void init_skiplist(struct fsck_options
*options
, const char *path
)
189 static struct oid_array skiplist
= OID_ARRAY_INIT
;
191 char buffer
[GIT_MAX_HEXSZ
+ 1];
192 struct object_id oid
;
194 if (options
->skiplist
)
195 sorted
= options
->skiplist
->sorted
;
198 options
->skiplist
= &skiplist
;
201 fd
= open(path
, O_RDONLY
);
203 die("Could not open skip list: %s", path
);
206 int result
= read_in_full(fd
, buffer
, sizeof(buffer
));
208 die_errno("Could not read '%s'", path
);
211 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n')
212 die("Invalid SHA-1: %s", buffer
);
213 oid_array_append(&skiplist
, &oid
);
214 if (sorted
&& skiplist
.nr
> 1 &&
215 oidcmp(&skiplist
.oid
[skiplist
.nr
- 2],
225 static int parse_msg_type(const char *str
)
227 if (!strcmp(str
, "error"))
229 else if (!strcmp(str
, "warn"))
231 else if (!strcmp(str
, "ignore"))
234 die("Unknown fsck message type: '%s'", str
);
237 int is_valid_msg_type(const char *msg_id
, const char *msg_type
)
239 if (parse_msg_id(msg_id
) < 0)
241 parse_msg_type(msg_type
);
245 void fsck_set_msg_type(struct fsck_options
*options
,
246 const char *msg_id
, const char *msg_type
)
248 int id
= parse_msg_id(msg_id
), type
;
251 die("Unhandled message id: %s", msg_id
);
252 type
= parse_msg_type(msg_type
);
254 if (type
!= FSCK_ERROR
&& msg_id_info
[id
].msg_type
== FSCK_FATAL
)
255 die("Cannot demote %s to %s", msg_id
, msg_type
);
257 if (!options
->msg_type
) {
260 ALLOC_ARRAY(msg_type
, FSCK_MSG_MAX
);
261 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
262 msg_type
[i
] = fsck_msg_type(i
, options
);
263 options
->msg_type
= msg_type
;
266 options
->msg_type
[id
] = type
;
269 void fsck_set_msg_types(struct fsck_options
*options
, const char *values
)
271 char *buf
= xstrdup(values
), *to_free
= buf
;
275 int len
= strcspn(buf
, " ,|"), equal
;
285 equal
< len
&& buf
[equal
] != '=' && buf
[equal
] != ':';
287 buf
[equal
] = tolower(buf
[equal
]);
290 if (!strcmp(buf
, "skiplist")) {
292 die("skiplist requires a path");
293 init_skiplist(options
, buf
+ equal
+ 1);
299 die("Missing '=': '%s'", buf
);
301 fsck_set_msg_type(options
, buf
, buf
+ equal
+ 1);
307 static void append_msg_id(struct strbuf
*sb
, const char *msg_id
)
310 char c
= *(msg_id
)++;
315 strbuf_addch(sb
, tolower(c
));
318 strbuf_addch(sb
, *(msg_id
)++);
322 strbuf_addstr(sb
, ": ");
325 static int object_on_skiplist(struct fsck_options
*opts
, struct object
*obj
)
327 if (opts
&& opts
->skiplist
&& obj
)
328 return oid_array_lookup(opts
->skiplist
, &obj
->oid
) >= 0;
332 __attribute__((format (printf
, 4, 5)))
333 static int report(struct fsck_options
*options
, struct object
*object
,
334 enum fsck_msg_id id
, const char *fmt
, ...)
337 struct strbuf sb
= STRBUF_INIT
;
338 int msg_type
= fsck_msg_type(id
, options
), result
;
340 if (msg_type
== FSCK_IGNORE
)
343 if (object_on_skiplist(options
, object
))
346 if (msg_type
== FSCK_FATAL
)
347 msg_type
= FSCK_ERROR
;
348 else if (msg_type
== FSCK_INFO
)
349 msg_type
= FSCK_WARN
;
351 append_msg_id(&sb
, msg_id_info
[id
].id_string
);
354 strbuf_vaddf(&sb
, fmt
, ap
);
355 result
= options
->error_func(options
, object
, msg_type
, sb
.buf
);
362 static char *get_object_name(struct fsck_options
*options
, struct object
*obj
)
364 if (!options
->object_names
)
366 return lookup_decoration(options
->object_names
, obj
);
369 static void put_object_name(struct fsck_options
*options
, struct object
*obj
,
370 const char *fmt
, ...)
373 struct strbuf buf
= STRBUF_INIT
;
376 if (!options
->object_names
)
378 existing
= lookup_decoration(options
->object_names
, obj
);
382 strbuf_vaddf(&buf
, fmt
, ap
);
383 add_decoration(options
->object_names
, obj
, strbuf_detach(&buf
, NULL
));
387 static const char *describe_object(struct fsck_options
*o
, struct object
*obj
)
389 static struct strbuf buf
= STRBUF_INIT
;
393 strbuf_addstr(&buf
, oid_to_hex(&obj
->oid
));
394 if (o
->object_names
&& (name
= lookup_decoration(o
->object_names
, obj
)))
395 strbuf_addf(&buf
, " (%s)", name
);
400 static int fsck_walk_tree(struct tree
*tree
, void *data
, struct fsck_options
*options
)
402 struct tree_desc desc
;
403 struct name_entry entry
;
407 if (parse_tree(tree
))
410 name
= get_object_name(options
, &tree
->object
);
411 if (init_tree_desc_gently(&desc
, tree
->buffer
, tree
->size
))
413 while (tree_entry_gently(&desc
, &entry
)) {
417 if (S_ISGITLINK(entry
.mode
))
420 if (S_ISDIR(entry
.mode
)) {
421 obj
= (struct object
*)lookup_tree(the_repository
, entry
.oid
);
423 put_object_name(options
, obj
, "%s%s/", name
,
425 result
= options
->walk(obj
, OBJ_TREE
, data
, options
);
427 else if (S_ISREG(entry
.mode
) || S_ISLNK(entry
.mode
)) {
428 obj
= (struct object
*)lookup_blob(the_repository
, entry
.oid
);
430 put_object_name(options
, obj
, "%s%s", name
,
432 result
= options
->walk(obj
, OBJ_BLOB
, data
, options
);
435 result
= error("in tree %s: entry %s has bad mode %.6o",
436 describe_object(options
, &tree
->object
), entry
.path
, entry
.mode
);
446 static int fsck_walk_commit(struct commit
*commit
, void *data
, struct fsck_options
*options
)
448 int counter
= 0, generation
= 0, name_prefix_len
= 0;
449 struct commit_list
*parents
;
454 if (parse_commit(commit
))
457 name
= get_object_name(options
, &commit
->object
);
459 put_object_name(options
, &get_commit_tree(commit
)->object
,
462 result
= options
->walk((struct object
*)get_commit_tree(commit
),
463 OBJ_TREE
, data
, options
);
468 parents
= commit
->parents
;
469 if (name
&& parents
) {
470 int len
= strlen(name
), power
;
472 if (len
&& name
[len
- 1] == '^') {
474 name_prefix_len
= len
- 1;
476 else { /* parse ~<generation> suffix */
477 for (generation
= 0, power
= 1;
478 len
&& isdigit(name
[len
- 1]);
480 generation
+= power
* (name
[--len
] - '0');
481 if (power
> 1 && len
&& name
[len
- 1] == '~')
482 name_prefix_len
= len
- 1;
488 struct object
*obj
= &parents
->item
->object
;
491 put_object_name(options
, obj
, "%s^%d",
493 else if (generation
> 0)
494 put_object_name(options
, obj
, "%.*s~%d",
495 name_prefix_len
, name
, generation
+ 1);
497 put_object_name(options
, obj
, "%s^", name
);
499 result
= options
->walk((struct object
*)parents
->item
, OBJ_COMMIT
, data
, options
);
504 parents
= parents
->next
;
509 static int fsck_walk_tag(struct tag
*tag
, void *data
, struct fsck_options
*options
)
511 char *name
= get_object_name(options
, &tag
->object
);
516 put_object_name(options
, tag
->tagged
, "%s", name
);
517 return options
->walk(tag
->tagged
, OBJ_ANY
, data
, options
);
520 int fsck_walk(struct object
*obj
, void *data
, struct fsck_options
*options
)
525 if (obj
->type
== OBJ_NONE
)
526 parse_object(the_repository
, &obj
->oid
);
532 return fsck_walk_tree((struct tree
*)obj
, data
, options
);
534 return fsck_walk_commit((struct commit
*)obj
, data
, options
);
536 return fsck_walk_tag((struct tag
*)obj
, data
, options
);
538 error("Unknown object type for %s", describe_object(options
, obj
));
544 * The entries in a tree are ordered in the _path_ order,
545 * which means that a directory entry is ordered by adding
546 * a slash to the end of it.
548 * So a directory called "a" is ordered _after_ a file
549 * called "a.c", because "a/" sorts after "a.c".
551 #define TREE_UNORDERED (-1)
552 #define TREE_HAS_DUPS (-2)
554 static int verify_ordered(unsigned mode1
, const char *name1
, unsigned mode2
, const char *name2
)
556 int len1
= strlen(name1
);
557 int len2
= strlen(name2
);
558 int len
= len1
< len2
? len1
: len2
;
559 unsigned char c1
, c2
;
562 cmp
= memcmp(name1
, name2
, len
);
566 return TREE_UNORDERED
;
569 * Ok, the first <len> characters are the same.
570 * Now we need to order the next one, but turn
571 * a '\0' into a '/' for a directory entry.
577 * git-write-tree used to write out a nonsense tree that has
578 * entries with the same name, one blob and one tree. Make
579 * sure we do not have duplicate entries.
581 return TREE_HAS_DUPS
;
582 if (!c1
&& S_ISDIR(mode1
))
584 if (!c2
&& S_ISDIR(mode2
))
586 return c1
< c2
? 0 : TREE_UNORDERED
;
589 static int fsck_tree(struct tree
*item
, struct fsck_options
*options
)
592 int has_null_sha1
= 0;
593 int has_full_path
= 0;
594 int has_empty_name
= 0;
598 int has_zero_pad
= 0;
599 int has_bad_modes
= 0;
600 int has_dup_entries
= 0;
601 int not_properly_sorted
= 0;
602 struct tree_desc desc
;
606 if (init_tree_desc_gently(&desc
, item
->buffer
, item
->size
)) {
607 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
616 const char *name
, *backslash
;
617 const struct object_id
*oid
;
619 oid
= tree_entry_extract(&desc
, &name
, &mode
);
621 has_null_sha1
|= is_null_oid(oid
);
622 has_full_path
|= !!strchr(name
, '/');
623 has_empty_name
|= !*name
;
624 has_dot
|= !strcmp(name
, ".");
625 has_dotdot
|= !strcmp(name
, "..");
626 has_dotgit
|= is_hfs_dotgit(name
) || is_ntfs_dotgit(name
);
627 has_zero_pad
|= *(char *)desc
.buffer
== '0';
629 if (is_hfs_dotgitmodules(name
) || is_ntfs_dotgitmodules(name
)) {
631 oidset_insert(&gitmodules_found
, oid
);
633 retval
+= report(options
, &item
->object
,
634 FSCK_MSG_GITMODULES_SYMLINK
,
635 ".gitmodules is a symbolic link");
638 if ((backslash
= strchr(name
, '\\'))) {
641 has_dotgit
|= is_ntfs_dotgit(backslash
);
642 if (is_ntfs_dotgitmodules(backslash
)) {
644 oidset_insert(&gitmodules_found
, oid
);
646 retval
+= report(options
, &item
->object
,
647 FSCK_MSG_GITMODULES_SYMLINK
,
648 ".gitmodules is a symbolic link");
650 backslash
= strchr(backslash
, '\\');
654 if (update_tree_entry_gently(&desc
)) {
655 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
670 * This is nonstandard, but we had a few of these
671 * early on when we honored the full set of mode
675 if (!options
->strict
)
683 switch (verify_ordered(o_mode
, o_name
, mode
, name
)) {
685 not_properly_sorted
= 1;
700 retval
+= report(options
, &item
->object
, FSCK_MSG_NULL_SHA1
, "contains entries pointing to null sha1");
702 retval
+= report(options
, &item
->object
, FSCK_MSG_FULL_PATHNAME
, "contains full pathnames");
704 retval
+= report(options
, &item
->object
, FSCK_MSG_EMPTY_NAME
, "contains empty pathname");
706 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOT
, "contains '.'");
708 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTDOT
, "contains '..'");
710 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTGIT
, "contains '.git'");
712 retval
+= report(options
, &item
->object
, FSCK_MSG_ZERO_PADDED_FILEMODE
, "contains zero-padded file modes");
714 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_FILEMODE
, "contains bad file modes");
716 retval
+= report(options
, &item
->object
, FSCK_MSG_DUPLICATE_ENTRIES
, "contains duplicate file entries");
717 if (not_properly_sorted
)
718 retval
+= report(options
, &item
->object
, FSCK_MSG_TREE_NOT_SORTED
, "not properly sorted");
722 static int verify_headers(const void *data
, unsigned long size
,
723 struct object
*obj
, struct fsck_options
*options
)
725 const char *buffer
= (const char *)data
;
728 for (i
= 0; i
< size
; i
++) {
731 return report(options
, obj
,
732 FSCK_MSG_NUL_IN_HEADER
,
733 "unterminated header: NUL at offset %ld", i
);
735 if (i
+ 1 < size
&& buffer
[i
+ 1] == '\n')
741 * We did not find double-LF that separates the header
742 * and the body. Not having a body is not a crime but
743 * we do want to see the terminating LF for the last header
746 if (size
&& buffer
[size
- 1] == '\n')
749 return report(options
, obj
,
750 FSCK_MSG_UNTERMINATED_HEADER
, "unterminated header");
753 static int fsck_ident(const char **ident
, struct object
*obj
, struct fsck_options
*options
)
755 const char *p
= *ident
;
758 *ident
= strchrnul(*ident
, '\n');
763 return report(options
, obj
, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
764 p
+= strcspn(p
, "<>\n");
766 return report(options
, obj
, FSCK_MSG_BAD_NAME
, "invalid author/committer line - bad name");
768 return report(options
, obj
, FSCK_MSG_MISSING_EMAIL
, "invalid author/committer line - missing email");
770 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
772 p
+= strcspn(p
, "<>\n");
774 return report(options
, obj
, FSCK_MSG_BAD_EMAIL
, "invalid author/committer line - bad email");
777 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_DATE
, "invalid author/committer line - missing space before date");
779 if (*p
== '0' && p
[1] != ' ')
780 return report(options
, obj
, FSCK_MSG_ZERO_PADDED_DATE
, "invalid author/committer line - zero-padded date");
781 if (date_overflows(parse_timestamp(p
, &end
, 10)))
782 return report(options
, obj
, FSCK_MSG_BAD_DATE_OVERFLOW
, "invalid author/committer line - date causes integer overflow");
783 if ((end
== p
|| *end
!= ' '))
784 return report(options
, obj
, FSCK_MSG_BAD_DATE
, "invalid author/committer line - bad date");
786 if ((*p
!= '+' && *p
!= '-') ||
792 return report(options
, obj
, FSCK_MSG_BAD_TIMEZONE
, "invalid author/committer line - bad time zone");
797 static int fsck_commit_buffer(struct commit
*commit
, const char *buffer
,
798 unsigned long size
, struct fsck_options
*options
)
800 struct object_id tree_oid
, oid
;
801 struct commit_graft
*graft
;
802 unsigned parent_count
, parent_line_count
= 0, author_count
;
804 const char *buffer_begin
= buffer
;
807 if (verify_headers(buffer
, size
, &commit
->object
, options
))
810 if (!skip_prefix(buffer
, "tree ", &buffer
))
811 return report(options
, &commit
->object
, FSCK_MSG_MISSING_TREE
, "invalid format - expected 'tree' line");
812 if (parse_oid_hex(buffer
, &tree_oid
, &p
) || *p
!= '\n') {
813 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE_SHA1
, "invalid 'tree' line format - bad sha1");
818 while (skip_prefix(buffer
, "parent ", &buffer
)) {
819 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n') {
820 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_PARENT_SHA1
, "invalid 'parent' line format - bad sha1");
827 graft
= lookup_commit_graft(the_repository
, &commit
->object
.oid
);
828 parent_count
= commit_list_count(commit
->parents
);
830 if (graft
->nr_parent
== -1 && !parent_count
)
831 ; /* shallow commit */
832 else if (graft
->nr_parent
!= parent_count
) {
833 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_GRAFT
, "graft objects missing");
838 if (parent_count
!= parent_line_count
) {
839 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_PARENT
, "parent objects missing");
845 while (skip_prefix(buffer
, "author ", &buffer
)) {
847 err
= fsck_ident(&buffer
, &commit
->object
, options
);
851 if (author_count
< 1)
852 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_AUTHOR
, "invalid format - expected 'author' line");
853 else if (author_count
> 1)
854 err
= report(options
, &commit
->object
, FSCK_MSG_MULTIPLE_AUTHORS
, "invalid format - multiple 'author' lines");
857 if (!skip_prefix(buffer
, "committer ", &buffer
))
858 return report(options
, &commit
->object
, FSCK_MSG_MISSING_COMMITTER
, "invalid format - expected 'committer' line");
859 err
= fsck_ident(&buffer
, &commit
->object
, options
);
862 if (!get_commit_tree(commit
)) {
863 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE
, "could not load commit's tree %s", oid_to_hex(&tree_oid
));
867 if (memchr(buffer_begin
, '\0', size
)) {
868 err
= report(options
, &commit
->object
, FSCK_MSG_NUL_IN_COMMIT
,
869 "NUL byte in the commit object body");
876 static int fsck_commit(struct commit
*commit
, const char *data
,
877 unsigned long size
, struct fsck_options
*options
)
879 const char *buffer
= data
? data
: get_commit_buffer(commit
, &size
);
880 int ret
= fsck_commit_buffer(commit
, buffer
, size
, options
);
882 unuse_commit_buffer(commit
, buffer
);
886 static int fsck_tag_buffer(struct tag
*tag
, const char *data
,
887 unsigned long size
, struct fsck_options
*options
)
889 struct object_id oid
;
892 char *to_free
= NULL
, *eol
;
893 struct strbuf sb
= STRBUF_INIT
;
899 enum object_type type
;
902 read_object_file(&tag
->object
.oid
, &type
, &size
);
904 return report(options
, &tag
->object
,
905 FSCK_MSG_MISSING_TAG_OBJECT
,
906 "cannot read tag object");
908 if (type
!= OBJ_TAG
) {
909 ret
= report(options
, &tag
->object
,
910 FSCK_MSG_TAG_OBJECT_NOT_TAG
,
911 "expected tag got %s",
917 ret
= verify_headers(buffer
, size
, &tag
->object
, options
);
921 if (!skip_prefix(buffer
, "object ", &buffer
)) {
922 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_OBJECT
, "invalid format - expected 'object' line");
925 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n') {
926 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_OBJECT_SHA1
, "invalid 'object' line format - bad sha1");
932 if (!skip_prefix(buffer
, "type ", &buffer
)) {
933 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE_ENTRY
, "invalid format - expected 'type' line");
936 eol
= strchr(buffer
, '\n');
938 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE
, "invalid format - unexpected end after 'type' line");
941 if (type_from_string_gently(buffer
, eol
- buffer
, 1) < 0)
942 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TYPE
, "invalid 'type' value");
947 if (!skip_prefix(buffer
, "tag ", &buffer
)) {
948 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG_ENTRY
, "invalid format - expected 'tag' line");
951 eol
= strchr(buffer
, '\n');
953 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG
, "invalid format - unexpected end after 'type' line");
956 strbuf_addf(&sb
, "refs/tags/%.*s", (int)(eol
- buffer
), buffer
);
957 if (check_refname_format(sb
.buf
, 0)) {
958 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_NAME
,
959 "invalid 'tag' name: %.*s",
960 (int)(eol
- buffer
), buffer
);
966 if (!skip_prefix(buffer
, "tagger ", &buffer
)) {
967 /* early tags do not contain 'tagger' lines; warn only */
968 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAGGER_ENTRY
, "invalid format - expected 'tagger' line");
973 ret
= fsck_ident(&buffer
, &tag
->object
, options
);
981 static int fsck_tag(struct tag
*tag
, const char *data
,
982 unsigned long size
, struct fsck_options
*options
)
984 struct object
*tagged
= tag
->tagged
;
987 return report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_OBJECT
, "could not load tagged object");
989 return fsck_tag_buffer(tag
, data
, size
, options
);
992 static int check_submodule_url(const char *url
)
994 struct credential c
= CREDENTIAL_INIT
;
997 if (looks_like_command_line_option(url
))
1000 ret
= credential_from_url_gently(&c
, url
, 1);
1001 credential_clear(&c
);
1005 struct fsck_gitmodules_data
{
1007 struct fsck_options
*options
;
1011 static int fsck_gitmodules_fn(const char *var
, const char *value
, void *vdata
)
1013 struct fsck_gitmodules_data
*data
= vdata
;
1014 const char *subsection
, *key
;
1018 if (parse_config_key(var
, "submodule", &subsection
, &subsection_len
, &key
) < 0 ||
1022 name
= xmemdupz(subsection
, subsection_len
);
1023 if (check_submodule_name(name
) < 0)
1024 data
->ret
|= report(data
->options
, data
->obj
,
1025 FSCK_MSG_GITMODULES_NAME
,
1026 "disallowed submodule name: %s",
1028 if (!strcmp(key
, "url") && value
&&
1029 check_submodule_url(value
) < 0)
1030 data
->ret
|= report(data
->options
, data
->obj
,
1031 FSCK_MSG_GITMODULES_URL
,
1032 "disallowed submodule url: %s",
1034 if (!strcmp(key
, "path") && value
&&
1035 looks_like_command_line_option(value
))
1036 data
->ret
|= report(data
->options
, data
->obj
,
1037 FSCK_MSG_GITMODULES_PATH
,
1038 "disallowed submodule path: %s",
1040 if (!strcmp(key
, "update") && value
&&
1041 parse_submodule_update_type(value
) == SM_UPDATE_COMMAND
)
1042 data
->ret
|= report(data
->options
, data
->obj
,
1043 FSCK_MSG_GITMODULES_UPDATE
,
1044 "disallowed submodule update setting: %s",
1051 static int fsck_blob(struct blob
*blob
, const char *buf
,
1052 unsigned long size
, struct fsck_options
*options
)
1054 struct fsck_gitmodules_data data
;
1055 struct config_options config_opts
= { 0 };
1057 if (!oidset_contains(&gitmodules_found
, &blob
->object
.oid
))
1059 oidset_insert(&gitmodules_done
, &blob
->object
.oid
);
1061 if (object_on_skiplist(options
, &blob
->object
))
1066 * A missing buffer here is a sign that the caller found the
1067 * blob too gigantic to load into memory. Let's just consider
1070 return report(options
, &blob
->object
,
1071 FSCK_MSG_GITMODULES_LARGE
,
1072 ".gitmodules too large to parse");
1075 data
.obj
= &blob
->object
;
1076 data
.options
= options
;
1078 config_opts
.error_action
= CONFIG_ERROR_SILENT
;
1079 if (git_config_from_mem(fsck_gitmodules_fn
, CONFIG_ORIGIN_BLOB
,
1080 ".gitmodules", buf
, size
, &data
, &config_opts
))
1081 data
.ret
|= report(options
, &blob
->object
,
1082 FSCK_MSG_GITMODULES_PARSE
,
1083 "could not parse gitmodules blob");
1088 int fsck_object(struct object
*obj
, void *data
, unsigned long size
,
1089 struct fsck_options
*options
)
1092 return report(options
, obj
, FSCK_MSG_BAD_OBJECT_SHA1
, "no valid object to fsck");
1094 if (obj
->type
== OBJ_BLOB
)
1095 return fsck_blob((struct blob
*)obj
, data
, size
, options
);
1096 if (obj
->type
== OBJ_TREE
)
1097 return fsck_tree((struct tree
*) obj
, options
);
1098 if (obj
->type
== OBJ_COMMIT
)
1099 return fsck_commit((struct commit
*) obj
, (const char *) data
,
1101 if (obj
->type
== OBJ_TAG
)
1102 return fsck_tag((struct tag
*) obj
, (const char *) data
,
1105 return report(options
, obj
, FSCK_MSG_UNKNOWN_TYPE
, "unknown type '%d' (internal fsck error)",
1109 int fsck_error_function(struct fsck_options
*o
,
1110 struct object
*obj
, int msg_type
, const char *message
)
1112 if (msg_type
== FSCK_WARN
) {
1113 warning("object %s: %s", describe_object(o
, obj
), message
);
1116 error("object %s: %s", describe_object(o
, obj
), message
);
1120 int fsck_finish(struct fsck_options
*options
)
1123 struct oidset_iter iter
;
1124 const struct object_id
*oid
;
1126 oidset_iter_init(&gitmodules_found
, &iter
);
1127 while ((oid
= oidset_iter_next(&iter
))) {
1129 enum object_type type
;
1133 if (oidset_contains(&gitmodules_done
, oid
))
1136 blob
= lookup_blob(the_repository
, oid
);
1138 struct object
*obj
= lookup_unknown_object(oid
->hash
);
1139 ret
|= report(options
, obj
,
1140 FSCK_MSG_GITMODULES_BLOB
,
1141 "non-blob found at .gitmodules");
1145 buf
= read_object_file(oid
, &type
, &size
);
1147 if (is_promisor_object(&blob
->object
.oid
))
1149 ret
|= report(options
, &blob
->object
,
1150 FSCK_MSG_GITMODULES_MISSING
,
1151 "unable to read .gitmodules blob");
1155 if (type
== OBJ_BLOB
)
1156 ret
|= fsck_blob(blob
, buf
, size
, options
);
1158 ret
|= report(options
, &blob
->object
,
1159 FSCK_MSG_GITMODULES_BLOB
,
1160 "non-blob found at .gitmodules");
1165 oidset_clear(&gitmodules_found
);
1166 oidset_clear(&gitmodules_done
);