11 #include "sha1-array.h"
15 #include "submodule-config.h"
17 #include "credential.h"
19 static struct oidset gitmodules_found = OIDSET_INIT;
20 static struct oidset gitmodules_done = OIDSET_INIT;
25 #define FOREACH_MSG_ID(FUNC) \
27 FUNC(NUL_IN_HEADER, FATAL) \
28 FUNC(UNTERMINATED_HEADER, FATAL) \
30 FUNC(BAD_DATE, ERROR) \
31 FUNC(BAD_DATE_OVERFLOW, ERROR) \
32 FUNC(BAD_EMAIL, ERROR) \
33 FUNC(BAD_NAME, ERROR) \
34 FUNC(BAD_OBJECT_SHA1, ERROR) \
35 FUNC(BAD_PARENT_SHA1, ERROR) \
36 FUNC(BAD_TAG_OBJECT, ERROR) \
37 FUNC(BAD_TIMEZONE, ERROR) \
38 FUNC(BAD_TREE, ERROR) \
39 FUNC(BAD_TREE_SHA1, ERROR) \
40 FUNC(BAD_TYPE, ERROR) \
41 FUNC(DUPLICATE_ENTRIES, ERROR) \
42 FUNC(MISSING_AUTHOR, ERROR) \
43 FUNC(MISSING_COMMITTER, ERROR) \
44 FUNC(MISSING_EMAIL, ERROR) \
45 FUNC(MISSING_GRAFT, ERROR) \
46 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
47 FUNC(MISSING_OBJECT, ERROR) \
48 FUNC(MISSING_PARENT, ERROR) \
49 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
50 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
51 FUNC(MISSING_TAG, ERROR) \
52 FUNC(MISSING_TAG_ENTRY, ERROR) \
53 FUNC(MISSING_TAG_OBJECT, ERROR) \
54 FUNC(MISSING_TREE, ERROR) \
55 FUNC(MISSING_TREE_OBJECT, ERROR) \
56 FUNC(MISSING_TYPE, ERROR) \
57 FUNC(MISSING_TYPE_ENTRY, ERROR) \
58 FUNC(MULTIPLE_AUTHORS, ERROR) \
59 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
60 FUNC(TREE_NOT_SORTED, ERROR) \
61 FUNC(UNKNOWN_TYPE, ERROR) \
62 FUNC(ZERO_PADDED_DATE, ERROR) \
63 FUNC(GITMODULES_MISSING, ERROR) \
64 FUNC(GITMODULES_BLOB, ERROR) \
65 FUNC(GITMODULES_PARSE, ERROR) \
66 FUNC(GITMODULES_NAME, ERROR) \
67 FUNC(GITMODULES_SYMLINK, ERROR) \
68 FUNC(GITMODULES_URL, ERROR) \
69 FUNC(GITMODULES_PATH, ERROR) \
70 FUNC(GITMODULES_UPDATE, ERROR) \
72 FUNC(BAD_FILEMODE, WARN) \
73 FUNC(EMPTY_NAME, WARN) \
74 FUNC(FULL_PATHNAME, WARN) \
76 FUNC(HAS_DOTDOT, WARN) \
77 FUNC(HAS_DOTGIT, WARN) \
78 FUNC(NULL_SHA1, WARN) \
79 FUNC(ZERO_PADDED_FILEMODE, WARN) \
80 FUNC(NUL_IN_COMMIT, WARN) \
81 /* infos (reported as warnings, but ignored by default) */ \
82 FUNC(BAD_TAG_NAME, INFO) \
83 FUNC(MISSING_TAGGER_ENTRY, INFO)
85 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
87 FOREACH_MSG_ID(MSG_ID)
93 #define MSG_ID(id, msg_type) { STR(id), NULL, FSCK_##msg_type },
95 const char *id_string;
96 const char *downcased;
98 } msg_id_info[FSCK_MSG_MAX + 1] = {
99 FOREACH_MSG_ID(MSG_ID)
104 static int parse_msg_id(const char *text)
108 if (!msg_id_info[0].downcased) {
109 /* convert id_string to lower case, without underscores. */
110 for (i = 0; i < FSCK_MSG_MAX; i++) {
111 const char *p = msg_id_info[i].id_string;
113 char *q = xmalloc(len);
115 msg_id_info[i].downcased = q;
120 *(q)++ = tolower(*(p)++);
125 for (i = 0; i < FSCK_MSG_MAX; i++)
126 if (!strcmp(text, msg_id_info[i].downcased))
132 static int fsck_msg_type(enum fsck_msg_id msg_id,
133 struct fsck_options *options)
137 assert(msg_id >= 0 && msg_id < FSCK_MSG_MAX);
139 if (options->msg_type)
140 msg_type = options->msg_type[msg_id];
142 msg_type = msg_id_info[msg_id].msg_type;
143 if (options->strict && msg_type == FSCK_WARN)
144 msg_type = FSCK_ERROR;
150 static void init_skiplist(struct fsck_options *options, const char *path)
152 static struct oid_array skiplist = OID_ARRAY_INIT;
154 char buffer[GIT_MAX_HEXSZ + 1];
155 struct object_id oid;
157 if (options->skiplist)
158 sorted = options->skiplist->sorted;
161 options->skiplist = &skiplist;
164 fd = open(path, O_RDONLY);
166 die("Could not open skip list: %s", path);
169 int result = read_in_full(fd, buffer, sizeof(buffer));
171 die_errno("Could not read '%s'", path);
174 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n')
175 die("Invalid SHA-1: %s", buffer);
176 oid_array_append(&skiplist, &oid);
177 if (sorted && skiplist.nr > 1 &&
178 oidcmp(&skiplist.oid[skiplist.nr - 2],
188 static int parse_msg_type(const char *str)
190 if (!strcmp(str, "error"))
192 else if (!strcmp(str, "warn"))
194 else if (!strcmp(str, "ignore"))
197 die("Unknown fsck message type: '%s'", str);
200 int is_valid_msg_type(const char *msg_id, const char *msg_type)
202 if (parse_msg_id(msg_id) < 0)
204 parse_msg_type(msg_type);
208 void fsck_set_msg_type(struct fsck_options *options,
209 const char *msg_id, const char *msg_type)
211 int id = parse_msg_id(msg_id), type;
214 die("Unhandled message id: %s", msg_id);
215 type = parse_msg_type(msg_type);
217 if (type != FSCK_ERROR && msg_id_info[id].msg_type == FSCK_FATAL)
218 die("Cannot demote %s to %s", msg_id, msg_type);
220 if (!options->msg_type) {
223 ALLOC_ARRAY(msg_type, FSCK_MSG_MAX);
224 for (i = 0; i < FSCK_MSG_MAX; i++)
225 msg_type[i] = fsck_msg_type(i, options);
226 options->msg_type = msg_type;
229 options->msg_type[id] = type;
232 void fsck_set_msg_types(struct fsck_options *options, const char *values)
234 char *buf = xstrdup(values), *to_free = buf;
238 int len = strcspn(buf, " ,|"), equal;
248 equal < len && buf[equal] != '=' && buf[equal] != ':';
250 buf[equal] = tolower(buf[equal]);
253 if (!strcmp(buf, "skiplist")) {
255 die("skiplist requires a path");
256 init_skiplist(options, buf + equal + 1);
262 die("Missing '=': '%s'", buf);
264 fsck_set_msg_type(options, buf, buf + equal + 1);
270 static void append_msg_id(struct strbuf *sb, const char *msg_id)
273 char c = *(msg_id)++;
278 strbuf_addch(sb, tolower(c));
281 strbuf_addch(sb, *(msg_id)++);
285 strbuf_addstr(sb, ": ");
288 __attribute__((format (printf, 4, 5)))
289 static int report(struct fsck_options *options, struct object *object,
290 enum fsck_msg_id id, const char *fmt, ...)
293 struct strbuf sb = STRBUF_INIT;
294 int msg_type = fsck_msg_type(id, options), result;
296 if (msg_type == FSCK_IGNORE)
299 if (options->skiplist && object &&
300 oid_array_lookup(options->skiplist, &object->oid) >= 0)
303 if (msg_type == FSCK_FATAL)
304 msg_type = FSCK_ERROR;
305 else if (msg_type == FSCK_INFO)
306 msg_type = FSCK_WARN;
308 append_msg_id(&sb, msg_id_info[id].id_string);
311 strbuf_vaddf(&sb, fmt, ap);
312 result = options->error_func(options, object, msg_type, sb.buf);
319 static char *get_object_name(struct fsck_options *options, struct object *obj)
321 if (!options->object_names)
323 return lookup_decoration(options->object_names, obj);
326 static void put_object_name(struct fsck_options *options, struct object *obj,
327 const char *fmt, ...)
330 struct strbuf buf = STRBUF_INIT;
333 if (!options->object_names)
335 existing = lookup_decoration(options->object_names, obj);
339 strbuf_vaddf(&buf, fmt, ap);
340 add_decoration(options->object_names, obj, strbuf_detach(&buf, NULL));
344 static const char *describe_object(struct fsck_options *o, struct object *obj)
346 static struct strbuf buf = STRBUF_INIT;
350 strbuf_addstr(&buf, oid_to_hex(&obj->oid));
351 if (o->object_names && (name = lookup_decoration(o->object_names, obj)))
352 strbuf_addf(&buf, " (%s)", name);
357 static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options)
359 struct tree_desc desc;
360 struct name_entry entry;
364 if (parse_tree(tree))
367 name = get_object_name(options, &tree->object);
368 if (init_tree_desc_gently(&desc, tree->buffer, tree->size))
370 while (tree_entry_gently(&desc, &entry)) {
374 if (S_ISGITLINK(entry.mode))
377 if (S_ISDIR(entry.mode)) {
378 obj = (struct object *)lookup_tree(entry.oid);
380 put_object_name(options, obj, "%s%s/", name,
382 result = options->walk(obj, OBJ_TREE, data, options);
384 else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) {
385 obj = (struct object *)lookup_blob(entry.oid);
387 put_object_name(options, obj, "%s%s", name,
389 result = options->walk(obj, OBJ_BLOB, data, options);
392 result = error("in tree %s: entry %s has bad mode %.6o",
393 describe_object(options, &tree->object), entry.path, entry.mode);
403 static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_options *options)
405 int counter = 0, generation = 0, name_prefix_len = 0;
406 struct commit_list *parents;
411 if (parse_commit(commit))
414 name = get_object_name(options, &commit->object);
416 put_object_name(options, &commit->tree->object, "%s:", name);
418 result = options->walk((struct object *)commit->tree, OBJ_TREE, data, options);
423 parents = commit->parents;
424 if (name && parents) {
425 int len = strlen(name), power;
427 if (len && name[len - 1] == '^') {
429 name_prefix_len = len - 1;
431 else { /* parse ~<generation> suffix */
432 for (generation = 0, power = 1;
433 len && isdigit(name[len - 1]);
435 generation += power * (name[--len] - '0');
436 if (power > 1 && len && name[len - 1] == '~')
437 name_prefix_len = len - 1;
443 struct object *obj = &parents->item->object;
446 put_object_name(options, obj, "%s^%d",
448 else if (generation > 0)
449 put_object_name(options, obj, "%.*s~%d",
450 name_prefix_len, name, generation + 1);
452 put_object_name(options, obj, "%s^", name);
454 result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options);
459 parents = parents->next;
464 static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options)
466 char *name = get_object_name(options, &tag->object);
471 put_object_name(options, tag->tagged, "%s", name);
472 return options->walk(tag->tagged, OBJ_ANY, data, options);
475 int fsck_walk(struct object *obj, void *data, struct fsck_options *options)
480 if (obj->type == OBJ_NONE)
481 parse_object(&obj->oid);
487 return fsck_walk_tree((struct tree *)obj, data, options);
489 return fsck_walk_commit((struct commit *)obj, data, options);
491 return fsck_walk_tag((struct tag *)obj, data, options);
493 error("Unknown object type for %s", describe_object(options, obj));
499 * The entries in a tree are ordered in the _path_ order,
500 * which means that a directory entry is ordered by adding
501 * a slash to the end of it.
503 * So a directory called "a" is ordered _after_ a file
504 * called "a.c", because "a/" sorts after "a.c".
506 #define TREE_UNORDERED (-1)
507 #define TREE_HAS_DUPS (-2)
509 static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, const char *name2)
511 int len1 = strlen(name1);
512 int len2 = strlen(name2);
513 int len = len1 < len2 ? len1 : len2;
514 unsigned char c1, c2;
517 cmp = memcmp(name1, name2, len);
521 return TREE_UNORDERED;
524 * Ok, the first <len> characters are the same.
525 * Now we need to order the next one, but turn
526 * a '\0' into a '/' for a directory entry.
532 * git-write-tree used to write out a nonsense tree that has
533 * entries with the same name, one blob and one tree. Make
534 * sure we do not have duplicate entries.
536 return TREE_HAS_DUPS;
537 if (!c1 && S_ISDIR(mode1))
539 if (!c2 && S_ISDIR(mode2))
541 return c1 < c2 ? 0 : TREE_UNORDERED;
544 static int fsck_tree(struct tree *item, struct fsck_options *options)
547 int has_null_sha1 = 0;
548 int has_full_path = 0;
549 int has_empty_name = 0;
553 int has_zero_pad = 0;
554 int has_bad_modes = 0;
555 int has_dup_entries = 0;
556 int not_properly_sorted = 0;
557 struct tree_desc desc;
561 if (init_tree_desc_gently(&desc, item->buffer, item->size)) {
562 retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
571 const char *name, *backslash;
572 const struct object_id *oid;
574 oid = tree_entry_extract(&desc, &name, &mode);
576 has_null_sha1 |= is_null_oid(oid);
577 has_full_path |= !!strchr(name, '/');
578 has_empty_name |= !*name;
579 has_dot |= !strcmp(name, ".");
580 has_dotdot |= !strcmp(name, "..");
581 has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name);
582 has_zero_pad |= *(char *)desc.buffer == '0';
584 if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) {
586 oidset_insert(&gitmodules_found, oid);
588 retval += report(options, &item->object,
589 FSCK_MSG_GITMODULES_SYMLINK,
590 ".gitmodules is a symbolic link");
593 if ((backslash = strchr(name, '\\'))) {
596 has_dotgit |= is_ntfs_dotgit(backslash);
597 if (is_ntfs_dotgitmodules(backslash)) {
599 oidset_insert(&gitmodules_found, oid);
601 retval += report(options, &item->object,
602 FSCK_MSG_GITMODULES_SYMLINK,
603 ".gitmodules is a symbolic link");
605 backslash = strchr(backslash, '\\');
609 if (update_tree_entry_gently(&desc)) {
610 retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
625 * This is nonstandard, but we had a few of these
626 * early on when we honored the full set of mode
630 if (!options->strict)
638 switch (verify_ordered(o_mode, o_name, mode, name)) {
640 not_properly_sorted = 1;
655 retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1");
657 retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames");
659 retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname");
661 retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'");
663 retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'");
665 retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'");
667 retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes");
669 retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes");
671 retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries");
672 if (not_properly_sorted)
673 retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted");
677 static int verify_headers(const void *data, unsigned long size,
678 struct object *obj, struct fsck_options *options)
680 const char *buffer = (const char *)data;
683 for (i = 0; i < size; i++) {
686 return report(options, obj,
687 FSCK_MSG_NUL_IN_HEADER,
688 "unterminated header: NUL at offset %ld", i);
690 if (i + 1 < size && buffer[i + 1] == '\n')
696 * We did not find double-LF that separates the header
697 * and the body. Not having a body is not a crime but
698 * we do want to see the terminating LF for the last header
701 if (size && buffer[size - 1] == '\n')
704 return report(options, obj,
705 FSCK_MSG_UNTERMINATED_HEADER, "unterminated header");
708 static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options)
710 const char *p = *ident;
713 *ident = strchrnul(*ident, '\n');
718 return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
719 p += strcspn(p, "<>\n");
721 return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name");
723 return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email");
725 return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
727 p += strcspn(p, "<>\n");
729 return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email");
732 return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date");
734 if (*p == '0' && p[1] != ' ')
735 return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date");
736 if (date_overflows(parse_timestamp(p, &end, 10)))
737 return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow");
738 if ((end == p || *end != ' '))
739 return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date");
741 if ((*p != '+' && *p != '-') ||
747 return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone");
752 static int fsck_commit_buffer(struct commit *commit, const char *buffer,
753 unsigned long size, struct fsck_options *options)
755 unsigned char tree_sha1[20], sha1[20];
756 struct commit_graft *graft;
757 unsigned parent_count, parent_line_count = 0, author_count;
759 const char *buffer_begin = buffer;
761 if (verify_headers(buffer, size, &commit->object, options))
764 if (!skip_prefix(buffer, "tree ", &buffer))
765 return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line");
766 if (get_sha1_hex(buffer, tree_sha1) || buffer[40] != '\n') {
767 err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1");
772 while (skip_prefix(buffer, "parent ", &buffer)) {
773 if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n') {
774 err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1");
781 graft = lookup_commit_graft(&commit->object.oid);
782 parent_count = commit_list_count(commit->parents);
784 if (graft->nr_parent == -1 && !parent_count)
785 ; /* shallow commit */
786 else if (graft->nr_parent != parent_count) {
787 err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing");
792 if (parent_count != parent_line_count) {
793 err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing");
799 while (skip_prefix(buffer, "author ", &buffer)) {
801 err = fsck_ident(&buffer, &commit->object, options);
805 if (author_count < 1)
806 err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line");
807 else if (author_count > 1)
808 err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines");
811 if (!skip_prefix(buffer, "committer ", &buffer))
812 return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line");
813 err = fsck_ident(&buffer, &commit->object, options);
817 err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1));
821 if (memchr(buffer_begin, '\0', size)) {
822 err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT,
823 "NUL byte in the commit object body");
830 static int fsck_commit(struct commit *commit, const char *data,
831 unsigned long size, struct fsck_options *options)
833 const char *buffer = data ? data : get_commit_buffer(commit, &size);
834 int ret = fsck_commit_buffer(commit, buffer, size, options);
836 unuse_commit_buffer(commit, buffer);
840 static int fsck_tag_buffer(struct tag *tag, const char *data,
841 unsigned long size, struct fsck_options *options)
843 unsigned char sha1[20];
846 char *to_free = NULL, *eol;
847 struct strbuf sb = STRBUF_INIT;
852 enum object_type type;
855 read_sha1_file(tag->object.oid.hash, &type, &size);
857 return report(options, &tag->object,
858 FSCK_MSG_MISSING_TAG_OBJECT,
859 "cannot read tag object");
861 if (type != OBJ_TAG) {
862 ret = report(options, &tag->object,
863 FSCK_MSG_TAG_OBJECT_NOT_TAG,
864 "expected tag got %s",
870 ret = verify_headers(buffer, size, &tag->object, options);
874 if (!skip_prefix(buffer, "object ", &buffer)) {
875 ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line");
878 if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n') {
879 ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1");
885 if (!skip_prefix(buffer, "type ", &buffer)) {
886 ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line");
889 eol = strchr(buffer, '\n');
891 ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line");
894 if (type_from_string_gently(buffer, eol - buffer, 1) < 0)
895 ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value");
900 if (!skip_prefix(buffer, "tag ", &buffer)) {
901 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line");
904 eol = strchr(buffer, '\n');
906 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line");
909 strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer);
910 if (check_refname_format(sb.buf, 0)) {
911 ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME,
912 "invalid 'tag' name: %.*s",
913 (int)(eol - buffer), buffer);
919 if (!skip_prefix(buffer, "tagger ", &buffer)) {
920 /* early tags do not contain 'tagger' lines; warn only */
921 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line");
926 ret = fsck_ident(&buffer, &tag->object, options);
934 static int fsck_tag(struct tag *tag, const char *data,
935 unsigned long size, struct fsck_options *options)
937 struct object *tagged = tag->tagged;
940 return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object");
942 return fsck_tag_buffer(tag, data, size, options);
945 static int check_submodule_url(const char *url)
947 struct credential c = CREDENTIAL_INIT;
950 if (looks_like_command_line_option(url))
953 ret = credential_from_url_gently(&c, url, 1);
954 credential_clear(&c);
958 struct fsck_gitmodules_data {
960 struct fsck_options *options;
964 static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata)
966 struct fsck_gitmodules_data *data = vdata;
967 const char *subsection, *key;
971 if (parse_config_key(var, "submodule", &subsection, &subsection_len, &key) < 0 ||
975 name = xmemdupz(subsection, subsection_len);
976 if (check_submodule_name(name) < 0)
977 data->ret |= report(data->options, data->obj,
978 FSCK_MSG_GITMODULES_NAME,
979 "disallowed submodule name: %s",
981 if (!strcmp(key, "url") && value &&
982 check_submodule_url(value) < 0)
983 data->ret |= report(data->options, data->obj,
984 FSCK_MSG_GITMODULES_URL,
985 "disallowed submodule url: %s",
987 if (!strcmp(key, "path") && value &&
988 looks_like_command_line_option(value))
989 data->ret |= report(data->options, data->obj,
990 FSCK_MSG_GITMODULES_PATH,
991 "disallowed submodule path: %s",
993 if (!strcmp(key, "update") && value &&
994 parse_submodule_update_type(value) == SM_UPDATE_COMMAND)
995 data->ret |= report(data->options, data->obj,
996 FSCK_MSG_GITMODULES_UPDATE,
997 "disallowed submodule update setting: %s",
1004 static int fsck_blob(struct blob *blob, const char *buf,
1005 unsigned long size, struct fsck_options *options)
1007 struct fsck_gitmodules_data data;
1009 if (!oidset_contains(&gitmodules_found, &blob->object.oid))
1011 oidset_insert(&gitmodules_done, &blob->object.oid);
1015 * A missing buffer here is a sign that the caller found the
1016 * blob too gigantic to load into memory. Let's just consider
1019 return report(options, &blob->object,
1020 FSCK_MSG_GITMODULES_PARSE,
1021 ".gitmodules too large to parse");
1024 data.obj = &blob->object;
1025 data.options = options;
1027 if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB,
1028 ".gitmodules", buf, size, &data))
1029 data.ret |= report(options, &blob->object,
1030 FSCK_MSG_GITMODULES_PARSE,
1031 "could not parse gitmodules blob");
1036 int fsck_object(struct object *obj, void *data, unsigned long size,
1037 struct fsck_options *options)
1040 return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck");
1042 if (obj->type == OBJ_BLOB)
1043 return fsck_blob((struct blob *)obj, data, size, options);
1044 if (obj->type == OBJ_TREE)
1045 return fsck_tree((struct tree *) obj, options);
1046 if (obj->type == OBJ_COMMIT)
1047 return fsck_commit((struct commit *) obj, (const char *) data,
1049 if (obj->type == OBJ_TAG)
1050 return fsck_tag((struct tag *) obj, (const char *) data,
1053 return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)",
1057 int fsck_error_function(struct fsck_options *o,
1058 struct object *obj, int msg_type, const char *message)
1060 if (msg_type == FSCK_WARN) {
1061 warning("object %s: %s", describe_object(o, obj), message);
1064 error("object %s: %s", describe_object(o, obj), message);
1068 int fsck_finish(struct fsck_options *options)
1071 struct oidset_iter iter;
1072 const struct object_id *oid;
1074 oidset_iter_init(&gitmodules_found, &iter);
1075 while ((oid = oidset_iter_next(&iter))) {
1077 enum object_type type;
1081 if (oidset_contains(&gitmodules_done, oid))
1084 blob = lookup_blob(oid);
1086 ret |= report(options, &blob->object,
1087 FSCK_MSG_GITMODULES_BLOB,
1088 "non-blob found at .gitmodules");
1092 buf = read_sha1_file(oid->hash, &type, &size);
1094 if (is_promisor_object(&blob->object.oid))
1096 ret |= report(options, &blob->object,
1097 FSCK_MSG_GITMODULES_MISSING,
1098 "unable to read .gitmodules blob");
1102 if (type == OBJ_BLOB)
1103 ret |= fsck_blob(blob, buf, size, options);
1105 ret |= report(options, &blob->object,
1106 FSCK_MSG_GITMODULES_BLOB,
1107 "non-blob found at .gitmodules");
1112 oidset_clear(&gitmodules_found);
1113 oidset_clear(&gitmodules_done);