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#include "cache.h"
#include "object.h"
#include "blob.h"
#include "tree.h"
#include "tree-walk.h"
#include "commit.h"
#include "tag.h"
#include "fsck.h"
#include "refs.h"
#include "utf8.h"
#include "sha1-array.h"
#define FSCK_FATAL -1
#define FSCK_INFO -2
#define FOREACH_MSG_ID(FUNC) \
/* fatal errors */ \
FUNC(NUL_IN_HEADER, FATAL) \
FUNC(UNTERMINATED_HEADER, FATAL) \
/* errors */ \
FUNC(BAD_DATE, ERROR) \
FUNC(BAD_DATE_OVERFLOW, ERROR) \
FUNC(BAD_EMAIL, ERROR) \
FUNC(BAD_NAME, ERROR) \
FUNC(BAD_OBJECT_SHA1, ERROR) \
FUNC(BAD_PARENT_SHA1, ERROR) \
FUNC(BAD_TAG_OBJECT, ERROR) \
FUNC(BAD_TIMEZONE, ERROR) \
FUNC(BAD_TREE, ERROR) \
FUNC(BAD_TREE_SHA1, ERROR) \
FUNC(BAD_TYPE, ERROR) \
FUNC(DUPLICATE_ENTRIES, ERROR) \
FUNC(MISSING_AUTHOR, ERROR) \
FUNC(MISSING_COMMITTER, ERROR) \
FUNC(MISSING_EMAIL, ERROR) \
FUNC(MISSING_GRAFT, ERROR) \
FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
FUNC(MISSING_OBJECT, ERROR) \
FUNC(MISSING_PARENT, ERROR) \
FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
FUNC(MISSING_TAG, ERROR) \
FUNC(MISSING_TAG_ENTRY, ERROR) \
FUNC(MISSING_TAG_OBJECT, ERROR) \
FUNC(MISSING_TREE, ERROR) \
FUNC(MISSING_TYPE, ERROR) \
FUNC(MISSING_TYPE_ENTRY, ERROR) \
FUNC(MULTIPLE_AUTHORS, ERROR) \
FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
FUNC(TREE_NOT_SORTED, ERROR) \
FUNC(UNKNOWN_TYPE, ERROR) \
FUNC(ZERO_PADDED_DATE, ERROR) \
/* warnings */ \
FUNC(BAD_FILEMODE, WARN) \
FUNC(EMPTY_NAME, WARN) \
FUNC(FULL_PATHNAME, WARN) \
FUNC(HAS_DOT, WARN) \
FUNC(HAS_DOTDOT, WARN) \
FUNC(HAS_DOTGIT, WARN) \
FUNC(NULL_SHA1, WARN) \
FUNC(ZERO_PADDED_FILEMODE, WARN) \
/* infos (reported as warnings, but ignored by default) */ \
FUNC(BAD_TAG_NAME, INFO) \
FUNC(MISSING_TAGGER_ENTRY, INFO)
#define MSG_ID(id, msg_type) FSCK_MSG_##id,
enum fsck_msg_id {
FOREACH_MSG_ID(MSG_ID)
FSCK_MSG_MAX
};
#undef MSG_ID
#define STR(x) #x
#define MSG_ID(id, msg_type) { STR(id), NULL, FSCK_##msg_type },
static struct {
const char *id_string;
const char *downcased;
int msg_type;
} msg_id_info[FSCK_MSG_MAX + 1] = {
FOREACH_MSG_ID(MSG_ID)
{ NULL, NULL, -1 }
};
#undef MSG_ID
static int parse_msg_id(const char *text)
{
int i;
if (!msg_id_info[0].downcased) {
/* convert id_string to lower case, without underscores. */
for (i = 0; i < FSCK_MSG_MAX; i++) {
const char *p = msg_id_info[i].id_string;
int len = strlen(p);
char *q = xmalloc(len);
msg_id_info[i].downcased = q;
while (*p)
if (*p == '_')
p++;
else
*(q)++ = tolower(*(p)++);
*q = '\0';
}
}
for (i = 0; i < FSCK_MSG_MAX; i++)
if (!strcmp(text, msg_id_info[i].downcased))
return i;
return -1;
}
static int fsck_msg_type(enum fsck_msg_id msg_id,
struct fsck_options *options)
{
int msg_type;
assert(msg_id >= 0 && msg_id < FSCK_MSG_MAX);
if (options->msg_type)
msg_type = options->msg_type[msg_id];
else {
msg_type = msg_id_info[msg_id].msg_type;
if (options->strict && msg_type == FSCK_WARN)
msg_type = FSCK_ERROR;
}
return msg_type;
}
static void init_skiplist(struct fsck_options *options, const char *path)
{
static struct sha1_array skiplist = SHA1_ARRAY_INIT;
int sorted, fd;
char buffer[41];
unsigned char sha1[20];
if (options->skiplist)
sorted = options->skiplist->sorted;
else {
sorted = 1;
options->skiplist = &skiplist;
}
fd = open(path, O_RDONLY);
if (fd < 0)
die("Could not open skip list: %s", path);
for (;;) {
int result = read_in_full(fd, buffer, sizeof(buffer));
if (result < 0)
die_errno("Could not read '%s'", path);
if (!result)
break;
if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n')
die("Invalid SHA-1: %s", buffer);
sha1_array_append(&skiplist, sha1);
if (sorted && skiplist.nr > 1 &&
hashcmp(skiplist.sha1[skiplist.nr - 2],
sha1) > 0)
sorted = 0;
}
close(fd);
if (sorted)
skiplist.sorted = 1;
}
static int parse_msg_type(const char *str)
{
if (!strcmp(str, "error"))
return FSCK_ERROR;
else if (!strcmp(str, "warn"))
return FSCK_WARN;
else if (!strcmp(str, "ignore"))
return FSCK_IGNORE;
else
die("Unknown fsck message type: '%s'", str);
}
int is_valid_msg_type(const char *msg_id, const char *msg_type)
{
if (parse_msg_id(msg_id) < 0)
return 0;
parse_msg_type(msg_type);
return 1;
}
void fsck_set_msg_type(struct fsck_options *options,
const char *msg_id, const char *msg_type)
{
int id = parse_msg_id(msg_id), type;
if (id < 0)
die("Unhandled message id: %s", msg_id);
type = parse_msg_type(msg_type);
if (type != FSCK_ERROR && msg_id_info[id].msg_type == FSCK_FATAL)
die("Cannot demote %s to %s", msg_id, msg_type);
if (!options->msg_type) {
int i;
int *msg_type = xmalloc(sizeof(int) * FSCK_MSG_MAX);
for (i = 0; i < FSCK_MSG_MAX; i++)
msg_type[i] = fsck_msg_type(i, options);
options->msg_type = msg_type;
}
options->msg_type[id] = type;
}
void fsck_set_msg_types(struct fsck_options *options, const char *values)
{
char *buf = xstrdup(values), *to_free = buf;
int done = 0;
while (!done) {
int len = strcspn(buf, " ,|"), equal;
done = !buf[len];
if (!len) {
buf++;
continue;
}
buf[len] = '\0';
for (equal = 0;
equal < len && buf[equal] != '=' && buf[equal] != ':';
equal++)
buf[equal] = tolower(buf[equal]);
buf[equal] = '\0';
if (!strcmp(buf, "skiplist")) {
if (equal == len)
die("skiplist requires a path");
init_skiplist(options, buf + equal + 1);
buf += len + 1;
continue;
}
if (equal == len)
die("Missing '=': '%s'", buf);
fsck_set_msg_type(options, buf, buf + equal + 1);
buf += len + 1;
}
free(to_free);
}
static void append_msg_id(struct strbuf *sb, const char *msg_id)
{
for (;;) {
char c = *(msg_id)++;
if (!c)
break;
if (c != '_')
strbuf_addch(sb, tolower(c));
else {
assert(*msg_id);
strbuf_addch(sb, *(msg_id)++);
}
}
strbuf_addstr(sb, ": ");
}
__attribute__((format (printf, 4, 5)))
static int report(struct fsck_options *options, struct object *object,
enum fsck_msg_id id, const char *fmt, ...)
{
va_list ap;
struct strbuf sb = STRBUF_INIT;
int msg_type = fsck_msg_type(id, options), result;
if (msg_type == FSCK_IGNORE)
return 0;
if (options->skiplist && object &&
sha1_array_lookup(options->skiplist, object->sha1) >= 0)
return 0;
if (msg_type == FSCK_FATAL)
msg_type = FSCK_ERROR;
else if (msg_type == FSCK_INFO)
msg_type = FSCK_WARN;
append_msg_id(&sb, msg_id_info[id].id_string);
va_start(ap, fmt);
strbuf_vaddf(&sb, fmt, ap);
result = options->error_func(object, msg_type, sb.buf);
strbuf_release(&sb);
va_end(ap);
return result;
}
static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options)
{
struct tree_desc desc;
struct name_entry entry;
int res = 0;
if (parse_tree(tree))
return -1;
init_tree_desc(&desc, tree->buffer, tree->size);
while (tree_entry(&desc, &entry)) {
int result;
if (S_ISGITLINK(entry.mode))
continue;
if (S_ISDIR(entry.mode))
result = options->walk(&lookup_tree(entry.sha1)->object, OBJ_TREE, data, options);
else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode))
result = options->walk(&lookup_blob(entry.sha1)->object, OBJ_BLOB, data, options);
else {
result = error("in tree %s: entry %s has bad mode %.6o",
sha1_to_hex(tree->object.sha1), entry.path, entry.mode);
}
if (result < 0)
return result;
if (!res)
res = result;
}
return res;
}
static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_options *options)
{
struct commit_list *parents;
int res;
int result;
if (parse_commit(commit))
return -1;
result = options->walk((struct object *)commit->tree, OBJ_TREE, data, options);
if (result < 0)
return result;
res = result;
parents = commit->parents;
while (parents) {
result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options);
if (result < 0)
return result;
if (!res)
res = result;
parents = parents->next;
}
return res;
}
static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options)
{
if (parse_tag(tag))
return -1;
return options->walk(tag->tagged, OBJ_ANY, data, options);
}
int fsck_walk(struct object *obj, void *data, struct fsck_options *options)
{
if (!obj)
return -1;
switch (obj->type) {
case OBJ_BLOB:
return 0;
case OBJ_TREE:
return fsck_walk_tree((struct tree *)obj, data, options);
case OBJ_COMMIT:
return fsck_walk_commit((struct commit *)obj, data, options);
case OBJ_TAG:
return fsck_walk_tag((struct tag *)obj, data, options);
default:
error("Unknown object type for %s", sha1_to_hex(obj->sha1));
return -1;
}
}
/*
* The entries in a tree are ordered in the _path_ order,
* which means that a directory entry is ordered by adding
* a slash to the end of it.
*
* So a directory called "a" is ordered _after_ a file
* called "a.c", because "a/" sorts after "a.c".
*/
#define TREE_UNORDERED (-1)
#define TREE_HAS_DUPS (-2)
static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, const char *name2)
{
int len1 = strlen(name1);
int len2 = strlen(name2);
int len = len1 < len2 ? len1 : len2;
unsigned char c1, c2;
int cmp;
cmp = memcmp(name1, name2, len);
if (cmp < 0)
return 0;
if (cmp > 0)
return TREE_UNORDERED;
/*
* Ok, the first <len> characters are the same.
* Now we need to order the next one, but turn
* a '\0' into a '/' for a directory entry.
*/
c1 = name1[len];
c2 = name2[len];
if (!c1 && !c2)
/*
* git-write-tree used to write out a nonsense tree that has
* entries with the same name, one blob and one tree. Make
* sure we do not have duplicate entries.
*/
return TREE_HAS_DUPS;
if (!c1 && S_ISDIR(mode1))
c1 = '/';
if (!c2 && S_ISDIR(mode2))
c2 = '/';
return c1 < c2 ? 0 : TREE_UNORDERED;
}
static int fsck_tree(struct tree *item, struct fsck_options *options)
{
int retval;
int has_null_sha1 = 0;
int has_full_path = 0;
int has_empty_name = 0;
int has_dot = 0;
int has_dotdot = 0;
int has_dotgit = 0;
int has_zero_pad = 0;
int has_bad_modes = 0;
int has_dup_entries = 0;
int not_properly_sorted = 0;
struct tree_desc desc;
unsigned o_mode;
const char *o_name;
init_tree_desc(&desc, item->buffer, item->size);
o_mode = 0;
o_name = NULL;
while (desc.size) {
unsigned mode;
const char *name;
const unsigned char *sha1;
sha1 = tree_entry_extract(&desc, &name, &mode);
has_null_sha1 |= is_null_sha1(sha1);
has_full_path |= !!strchr(name, '/');
has_empty_name |= !*name;
has_dot |= !strcmp(name, ".");
has_dotdot |= !strcmp(name, "..");
has_dotgit |= (!strcmp(name, ".git") ||
is_hfs_dotgit(name) ||
is_ntfs_dotgit(name));
has_zero_pad |= *(char *)desc.buffer == '0';
update_tree_entry(&desc);
switch (mode) {
/*
* Standard modes..
*/
case S_IFREG | 0755:
case S_IFREG | 0644:
case S_IFLNK:
case S_IFDIR:
case S_IFGITLINK:
break;
/*
* This is nonstandard, but we had a few of these
* early on when we honored the full set of mode
* bits..
*/
case S_IFREG | 0664:
if (!options->strict)
break;
default:
has_bad_modes = 1;
}
if (o_name) {
switch (verify_ordered(o_mode, o_name, mode, name)) {
case TREE_UNORDERED:
not_properly_sorted = 1;
break;
case TREE_HAS_DUPS:
has_dup_entries = 1;
break;
default:
break;
}
}
o_mode = mode;
o_name = name;
}
retval = 0;
if (has_null_sha1)
retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1");
if (has_full_path)
retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames");
if (has_empty_name)
retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname");
if (has_dot)
retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'");
if (has_dotdot)
retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'");
if (has_dotgit)
retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'");
if (has_zero_pad)
retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes");
if (has_bad_modes)
retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes");
if (has_dup_entries)
retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries");
if (not_properly_sorted)
retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted");
return retval;
}
static int verify_headers(const void *data, unsigned long size,
struct object *obj, struct fsck_options *options)
{
const char *buffer = (const char *)data;
unsigned long i;
for (i = 0; i < size; i++) {
switch (buffer[i]) {
case '\0':
return report(options, obj,
FSCK_MSG_NUL_IN_HEADER,
"unterminated header: NUL at offset %ld", i);
case '\n':
if (i + 1 < size && buffer[i + 1] == '\n')
return 0;
}
}
/*
* We did not find double-LF that separates the header
* and the body. Not having a body is not a crime but
* we do want to see the terminating LF for the last header
* line.
*/
if (size && buffer[size - 1] == '\n')
return 0;
return report(options, obj,
FSCK_MSG_UNTERMINATED_HEADER, "unterminated header");
}
static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options)
{
const char *p = *ident;
char *end;
*ident = strchrnul(*ident, '\n');
if (**ident == '\n')
(*ident)++;
if (*p == '<')
return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
p += strcspn(p, "<>\n");
if (*p == '>')
return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name");
if (*p != '<')
return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email");
if (p[-1] != ' ')
return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
p++;
p += strcspn(p, "<>\n");
if (*p != '>')
return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email");
p++;
if (*p != ' ')
return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date");
p++;
if (*p == '0' && p[1] != ' ')
return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date");
if (date_overflows(strtoul(p, &end, 10)))
return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow");
if ((end == p || *end != ' '))
return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date");
p = end + 1;
if ((*p != '+' && *p != '-') ||
!isdigit(p[1]) ||
!isdigit(p[2]) ||
!isdigit(p[3]) ||
!isdigit(p[4]) ||
(p[5] != '\n'))
return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone");
p += 6;
return 0;
}
static int fsck_commit_buffer(struct commit *commit, const char *buffer,
unsigned long size, struct fsck_options *options)
{
unsigned char tree_sha1[20], sha1[20];
struct commit_graft *graft;
unsigned parent_count, parent_line_count = 0, author_count;
int err;
if (verify_headers(buffer, size, &commit->object, options))
return -1;
if (!skip_prefix(buffer, "tree ", &buffer))
return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line");
if (get_sha1_hex(buffer, tree_sha1) || buffer[40] != '\n') {
err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1");
if (err)
return err;
}
buffer += 41;
while (skip_prefix(buffer, "parent ", &buffer)) {
if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n') {
err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1");
if (err)
return err;
}
buffer += 41;
parent_line_count++;
}
graft = lookup_commit_graft(commit->object.sha1);
parent_count = commit_list_count(commit->parents);
if (graft) {
if (graft->nr_parent == -1 && !parent_count)
; /* shallow commit */
else if (graft->nr_parent != parent_count) {
err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing");
if (err)
return err;
}
} else {
if (parent_count != parent_line_count) {
err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing");
if (err)
return err;
}
}
author_count = 0;
while (skip_prefix(buffer, "author ", &buffer)) {
author_count++;
err = fsck_ident(&buffer, &commit->object, options);
if (err)
return err;
}
if (author_count < 1)
err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line");
else if (author_count > 1)
err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines");
if (err)
return err;
if (!skip_prefix(buffer, "committer ", &buffer))
return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line");
err = fsck_ident(&buffer, &commit->object, options);
if (err)
return err;
if (!commit->tree)
return report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1));
return 0;
}
static int fsck_commit(struct commit *commit, const char *data,
unsigned long size, struct fsck_options *options)
{
const char *buffer = data ? data : get_commit_buffer(commit, &size);
int ret = fsck_commit_buffer(commit, buffer, size, options);
if (!data)
unuse_commit_buffer(commit, buffer);
return ret;
}
static int fsck_tag_buffer(struct tag *tag, const char *data,
unsigned long size, struct fsck_options *options)
{
unsigned char sha1[20];
int ret = 0;
const char *buffer;
char *to_free = NULL, *eol;
struct strbuf sb = STRBUF_INIT;
if (data)
buffer = data;
else {
enum object_type type;
buffer = to_free =
read_sha1_file(tag->object.sha1, &type, &size);
if (!buffer)
return report(options, &tag->object,
FSCK_MSG_MISSING_TAG_OBJECT,
"cannot read tag object");
if (type != OBJ_TAG) {
ret = report(options, &tag->object,
FSCK_MSG_TAG_OBJECT_NOT_TAG,
"expected tag got %s",
typename(type));
goto done;
}
}
if (verify_headers(buffer, size, &tag->object, options))
goto done;
if (!skip_prefix(buffer, "object ", &buffer)) {
ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line");
goto done;
}
if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n') {
ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1");
if (ret)
goto done;
}
buffer += 41;
if (!skip_prefix(buffer, "type ", &buffer)) {
ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line");
goto done;
}
eol = strchr(buffer, '\n');
if (!eol) {
ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line");
goto done;
}
if (type_from_string_gently(buffer, eol - buffer, 1) < 0)
ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value");
if (ret)
goto done;
buffer = eol + 1;
if (!skip_prefix(buffer, "tag ", &buffer)) {
ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line");
goto done;
}
eol = strchr(buffer, '\n');
if (!eol) {
ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line");
goto done;
}
strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer);
if (check_refname_format(sb.buf, 0)) {
ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME,
"invalid 'tag' name: %.*s",
(int)(eol - buffer), buffer);
if (ret)
goto done;
}
buffer = eol + 1;
if (!skip_prefix(buffer, "tagger ", &buffer)) {
/* early tags do not contain 'tagger' lines; warn only */
ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line");
if (ret)
goto done;
}
else
ret = fsck_ident(&buffer, &tag->object, options);
done:
strbuf_release(&sb);
free(to_free);
return ret;
}
static int fsck_tag(struct tag *tag, const char *data,
unsigned long size, struct fsck_options *options)
{
struct object *tagged = tag->tagged;
if (!tagged)
return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object");
return fsck_tag_buffer(tag, data, size, options);
}
int fsck_object(struct object *obj, void *data, unsigned long size,
struct fsck_options *options)
{
if (!obj)
return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck");
if (obj->type == OBJ_BLOB)
return 0;
if (obj->type == OBJ_TREE)
return fsck_tree((struct tree *) obj, options);
if (obj->type == OBJ_COMMIT)
return fsck_commit((struct commit *) obj, (const char *) data,
size, options);
if (obj->type == OBJ_TAG)
return fsck_tag((struct tag *) obj, (const char *) data,
size, options);
return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)",
obj->type);
}
int fsck_error_function(struct object *obj, int msg_type, const char *message)
{
if (msg_type == FSCK_WARN) {
warning("object %s: %s", sha1_to_hex(obj->sha1), message);
return 0;
}
error("object %s: %s", sha1_to_hex(obj->sha1), message);
return 1;
}
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