Пример #1
0
git_signature *git_signature_new(const char *name, const char *email, git_time_t time, int offset)
{
	git_signature *p = NULL;

	if ((p = git__malloc(sizeof(git_signature))) == NULL)
		goto cleanup;

	p->name = git__strdup(name);
	p->email = git__strdup(email);
	p->when.time = time;
	p->when.offset = offset;

	if (p->name == NULL || p->email == NULL)
		goto cleanup;

	return p;

cleanup:
	git_signature_free(p);
	return NULL;
}
Пример #2
0
int git__compress(git_buf *buf, const void *buff, size_t len)
{
	z_stream zs;
	char *zb;
	size_t have;

	memset(&zs, 0, sizeof(zs));
	if (deflateInit(&zs, Z_DEFAULT_COMPRESSION) != Z_OK)
		return -1;

	zb = git__malloc(BUFFER_SIZE);
	GITERR_CHECK_ALLOC(zb);

	zs.next_in = (void *)buff;
	zs.avail_in = (uInt)len;

	do {
		zs.next_out = (unsigned char *)zb;
		zs.avail_out = BUFFER_SIZE;

		if (deflate(&zs, Z_FINISH) == Z_STREAM_ERROR) {
			git__free(zb);
			return -1;
		}

		have = BUFFER_SIZE - (size_t)zs.avail_out;

		if (git_buf_put(buf, zb, have) < 0) {
			git__free(zb);
			return -1;
		}

	} while (zs.avail_out == 0);

	assert(zs.avail_in == 0);

	deflateEnd(&zs);
	git__free(zb);
	return 0;
}
Пример #3
0
int git_treebuilder_insert(git_tree_entry **entry_out, git_treebuilder *bld, const char *filename, const git_oid *id, unsigned int attributes)
{
	git_tree_entry *entry;
	int pos;

	assert(bld && id && filename);

	if (!valid_attributes(attributes))
		return GIT_ERROR;

	if ((pos = git_vector_bsearch2(&bld->entries, entry_search_cmp, filename)) != GIT_ENOTFOUND) {
		entry = git_vector_get(&bld->entries, pos);
		if (entry->removed) {
			entry->removed = 0;
			bld->entry_count++;
		}
	} else {
		if ((entry = git__malloc(sizeof(git_tree_entry))) == NULL)
			return GIT_ENOMEM;

		memset(entry, 0x0, sizeof(git_tree_entry));
		entry->filename = git__strdup(filename);
		entry->filename_len = strlen(entry->filename);

		bld->entry_count++;
	}

	git_oid_cpy(&entry->oid, id);
	entry->attr = attributes;

	if (pos == GIT_ENOTFOUND) {
		if (git_vector_insert(&bld->entries, entry) < 0)
			return GIT_ENOMEM;
	}

	if (entry_out != NULL)
		*entry_out = entry;

	return GIT_SUCCESS;
}
Пример #4
0
static git_packlist *scan_packs(pack_backend *backend)
{
	char pb[GIT_PATH_MAX];
	struct scanned_pack *state = NULL, *c;
	size_t cnt;
	git_packlist *new_list;

	if (git__fmt(pb, sizeof(pb), "%s/pack", backend->objects_dir) < 0)
		return NULL;
	gitfo_dirent(pb, sizeof(pb), scan_one_pack, &state);

	/* TODO - merge old entries into the new array */
	for (cnt = 0, c = state; c; c = c->next)
		cnt++;
	new_list = git__malloc(sizeof(*new_list)
		+ (sizeof(new_list->packs[0]) * cnt));
	if (!new_list)
		goto fail;

	for (cnt = 0, c = state; c; ) {
		struct scanned_pack *n = c->next;
		c->pack->backend = backend;
		new_list->packs[cnt++] = c->pack;
		free(c);
		c = n;
	}
	new_list->n_packs = cnt;
	new_list->refcnt = 2;
	backend->packlist = new_list;
	return new_list;

fail:
	while (state) {
		struct scanned_pack *n = state->next;
		pack_dec(state->pack);
		free(state);
		state = n;
	}
	return NULL;
}
Пример #5
0
static git_revwalk_commit *commit_to_walkcommit(git_revwalk *walk, git_commit *commit_object)
{
	git_revwalk_commit *commit;

	commit = (git_revwalk_commit *)git_hashtable_lookup(walk->commits, commit_object);

	if (commit != NULL)
		return commit;

	commit = git__malloc(sizeof(git_revwalk_commit));
	if (commit == NULL)
		return NULL;

	memset(commit, 0x0, sizeof(git_revwalk_commit));

	commit->commit_object = commit_object;
	GIT_OBJECT_INCREF(commit_object);

	git_hashtable_insert(walk->commits, commit_object, commit);

	return commit;
}
Пример #6
0
int git_transport_git(git_transport **out)
{
	transport_git *t;
#ifdef GIT_WIN32
	int ret;
#endif

	t = git__malloc(sizeof(transport_git));
	GITERR_CHECK_ALLOC(t);

	memset(t, 0x0, sizeof(transport_git));
	if (git_vector_init(&t->parent.common, 8, NULL))
		goto on_error;

	if (git_vector_init(&t->parent.refs, 16, NULL) < 0)
		goto on_error;

	t->parent.connect = git_connect;
	t->parent.negotiation_step = git_negotiation_step;
	t->parent.close = git_close;
	t->parent.free = git_free;

	*out = (git_transport *) t;

#ifdef GIT_WIN32
	ret = WSAStartup(MAKEWORD(2,2), &t->wsd);
	if (ret != 0) {
		git_free(*out);
		giterr_set(GITERR_NET, "Winsock init failed");
		return -1;
	}
#endif

	return 0;

on_error:
	git__free(t);
	return -1;
}
Пример #7
0
int git_signature_new(git_signature **sig_out, const char *name, const char *email, git_time_t time, int offset)
{
    int error;
    git_signature *p = NULL;

    assert(name && email);

    *sig_out = NULL;

    if ((p = git__malloc(sizeof(git_signature))) == NULL) {
        error = GIT_ENOMEM;
        goto cleanup;
    }

    memset(p, 0x0, sizeof(git_signature));

    error = process_trimming(name, &p->name, name + strlen(name), 1);
    if (error < GIT_SUCCESS) {
        git__rethrow(GIT_EINVALIDARGS, "Failed to create signature. 'name' argument is invalid");
        goto cleanup;
    }

    error = process_trimming(email, &p->email, email + strlen(email), 1);
    if (error < GIT_SUCCESS) {
        git__rethrow(GIT_EINVALIDARGS, "Failed to create signature. 'email' argument is invalid");
        goto cleanup;
    }

    p->when.time = time;
    p->when.offset = offset;

    *sig_out = p;

    return error;

cleanup:
    git_signature_free(p);
    return error;
}
Пример #8
0
static int sideband_error_pkt(git_pkt **out, const char *line, size_t len)
{
	git_pkt_err *pkt;
	size_t alloc_len;

	line++;
	len--;

	GITERR_CHECK_ALLOC_ADD(&alloc_len, sizeof(git_pkt_err), len);
	GITERR_CHECK_ALLOC_ADD(&alloc_len, alloc_len, 1);
	pkt = git__malloc(alloc_len);
	GITERR_CHECK_ALLOC(pkt);

	pkt->type = GIT_PKT_ERR;
	pkt->len = (int)len;
	memcpy(pkt->error, line, len);
	pkt->error[len] = '\0';

	*out = (git_pkt *)pkt;

	return 0;
}
Пример #9
0
int remove_loose_object(const char *repository_folder, git_object *object)
{
	static const char *objects_folder = "objects/";

	char *ptr, *full_path, *top_folder;
	int path_length, objects_length;

	assert(repository_folder && object);

	objects_length = strlen(objects_folder);
	path_length = strlen(repository_folder);
	ptr = full_path = git__malloc(path_length + objects_length + GIT_OID_HEXSZ + 3);

	strcpy(ptr, repository_folder);
	strcpy(ptr + path_length, objects_folder);

	ptr = top_folder = ptr + path_length + objects_length;
	*ptr++ = '/';
	git_oid_pathfmt(ptr, git_object_id(object));
	ptr += GIT_OID_HEXSZ + 1;
	*ptr = 0;

	if (gitfo_unlink(full_path) < 0) {
		fprintf(stderr, "can't delete object file \"%s\"\n", full_path);
		return -1;
	}

	*top_folder = 0;

	if ((gitfo_rmdir(full_path) < 0) && (errno != ENOTEMPTY)) {
		fprintf(stderr, "can't remove object directory \"%s\"\n", full_path);
		return -1;
	}

	free(full_path);

	return GIT_SUCCESS;
}
Пример #10
0
static void assert_mergebase_many(const char *expected_sha, int count, ...)
{
	va_list ap;
	int i; 
	git_oid *oids;
	git_oid oid, expected;
	char *partial_oid;
	git_object *object;

	oids = git__malloc(count * sizeof(git_oid));
	cl_assert(oids != NULL);

	memset(oids, 0x0, count * sizeof(git_oid));

	va_start(ap, count);
	
	for (i = 0; i < count; ++i) {
		partial_oid = va_arg(ap, char *);
		cl_git_pass(git_oid_fromstrn(&oid, partial_oid, strlen(partial_oid)));

		cl_git_pass(git_object_lookup_prefix(&object, _repo, &oid, strlen(partial_oid), GIT_OBJ_COMMIT));
		git_oid_cpy(&oids[i], git_object_id(object));
		git_object_free(object);
	}

	va_end(ap);

	if (expected_sha == NULL)
		cl_assert_equal_i(GIT_ENOTFOUND, git_merge_base_many(&oid, _repo, count, oids));
	else {
		cl_git_pass(git_merge_base_many(&oid, _repo, count, oids));
		cl_git_pass(git_oid_fromstr(&expected, expected_sha));

		cl_assert(git_oid_cmp(&expected, &oid) == 0);
	}

	git__free(oids);
}
Пример #11
0
int git_commit_list_push_front(git_commit_list *list, git_commit *commit)
{
	git_commit_node *node = NULL;

	node = git__malloc(sizeof(git_commit_list));

	if (node == NULL)
		return GIT_ENOMEM;

	node->commit = commit;
	node->next = list->head;
	node->prev = NULL;

	if (list->head == NULL) {
		list->head = list->tail = node;
	} else {
		list->head->prev = node;
		list->head = node;
	}

	list->size++;
	return 0;
}
Пример #12
0
static int err_pkt(git_pkt **out, const char *line, size_t len)
{
	git_pkt_err *pkt;
	size_t alloclen;

	/* Remove "ERR " from the line */
	line += 4;
	len -= 4;

	GITERR_CHECK_ALLOC_ADD(&alloclen, sizeof(git_pkt_progress), len);
	GITERR_CHECK_ALLOC_ADD(&alloclen, alloclen, 1);
	pkt = git__malloc(alloclen);
	GITERR_CHECK_ALLOC(pkt);

	pkt->type = GIT_PKT_ERR;
	pkt->len = (int)len;
	memcpy(pkt->error, line, len);
	pkt->error[len] = '\0';

	*out = (git_pkt *) pkt;

	return 0;
}
Пример #13
0
static int note_new(
	git_note **out,
	git_oid *note_oid,
	git_commit *commit,
	git_blob *blob)
{
	git_note *note = NULL;

	note = (git_note *)git__malloc(sizeof(git_note));
	GITERR_CHECK_ALLOC(note);

	git_oid_cpy(&note->id, note_oid);

	if (git_signature_dup(&note->author, git_commit_author(commit)) < 0 ||
		git_signature_dup(&note->committer, git_commit_committer(commit)) < 0)
		return -1;

	note->message = git__strndup(git_blob_rawcontent(blob), git_blob_rawsize(blob));
	GITERR_CHECK_ALLOC(note->message);

	*out = note;
	return 0;
}
Пример #14
0
int gitfo_read_file(gitfo_buf *obj, const char *path)
{
	git_file fd;
	size_t len;
	git_off_t size;
	unsigned char *buff;

	assert(obj && path && *path);

	if ((fd = gitfo_open(path, O_RDONLY)) < 0)
		return GIT_ERROR;

	if (((size = gitfo_size(fd)) < 0) || !git__is_sizet(size+1)) {
		gitfo_close(fd);
		return GIT_ERROR;
	}
	len = (size_t) size;

	if ((buff = git__malloc(len + 1)) == NULL) {
		gitfo_close(fd);
		return GIT_ERROR;
	}

	if (gitfo_read(fd, buff, len) < 0) {
		gitfo_close(fd);
		free(buff);
		return GIT_ERROR;
	}
	buff[len] = '\0';

	gitfo_close(fd);

	obj->data = buff;
	obj->len  = len;

	return GIT_SUCCESS;
}
Пример #15
0
int git_cred_ssh_custom_new(
	git_cred **cred,
	const char *username,
	const char *publickey,
	size_t publickey_len,
	git_cred_sign_callback sign_callback,
	void *sign_data)
{
	git_cred_ssh_custom *c;

	assert(cred);

	c = git__calloc(1, sizeof(git_cred_ssh_custom));
	GITERR_CHECK_ALLOC(c);

	c->parent.credtype = GIT_CREDTYPE_SSH_CUSTOM;
	c->parent.free = ssh_custom_free;

	if (username) {
		c->username = git__strdup(username);
		GITERR_CHECK_ALLOC(c->username);
	}

	if (publickey_len > 0) {
		c->publickey = git__malloc(publickey_len);
		GITERR_CHECK_ALLOC(c->publickey);

		memcpy(c->publickey, publickey, publickey_len);
	}

	c->publickey_len = publickey_len;
	c->sign_callback = sign_callback;
	c->sign_data = sign_data;

	*cred = &c->parent;
	return 0;
}
Пример #16
0
/**
 * Converts a wide string to UTF-8.
 * Memory is allocated to hold the converted string.
 * The caller is responsible for freeing the string with git__free.
 *
 * @param dest Receives a pointer to the UTF-8 string.
 * @param src The wide string to convert.
 * @return The length of the UTF-8 string, in bytes (not counting the NULL terminator), or < 0 for failure
 */
int git__utf16_to_8_alloc(char **dest, const wchar_t *src)
{
	int utf8_size;
	DWORD dwFlags = get_wc_flags();

	*dest = NULL;

	/* Length of -1 indicates NULL termination of the input string */
	utf8_size = WideCharToMultiByte(CP_UTF8, dwFlags, src, -1, NULL, 0, NULL, NULL);

	if (!utf8_size) {
		git__set_errno();
		return -1;
	}

	*dest = git__malloc(utf8_size);

	if (!*dest) {
		errno = ENOMEM;
		return -1;
	}

	utf8_size = WideCharToMultiByte(CP_UTF8, dwFlags, src, -1, *dest, utf8_size, NULL, NULL);

	if (!utf8_size) {
		git__set_errno();

		git__free(*dest);
		*dest = NULL;
	}

	/* Subtract 1 from the result to turn 0 into -1 (an error code) and to not count the NULL
	 * terminator as part of the string's length. MultiByteToWideChar never returns int's minvalue,
	 * so underflow is not possible */
	return utf8_size - 1;
}
Пример #17
0
wchar_t* gitwin_to_utf16(const char* str)
{
	wchar_t* ret;
	int cb;

	if (!str)
		return NULL;

	cb = MultiByteToWideChar(_active_codepage, 0, str, -1, NULL, 0);
	if (cb == 0)
		return (wchar_t *)git__calloc(1, sizeof(wchar_t));

	ret = (wchar_t *)git__malloc(cb * sizeof(wchar_t));
	if (!ret)
		return NULL;

	if (MultiByteToWideChar(_active_codepage, 0, str, -1, ret, (int)cb) == 0) {
		giterr_set(GITERR_OS, "Could not convert string to UTF-16");
		git__free(ret);
		ret = NULL;
	}

	return ret;
}
Пример #18
0
int git_revwalk_new(git_revwalk **revwalk_out, git_repository *repo)
{
	git_revwalk *walk;

	walk = git__malloc(sizeof(git_revwalk));
	if (walk == NULL)
		return GIT_ENOMEM;

	memset(walk, 0x0, sizeof(git_revwalk));

	walk->commits = git_hashtable_alloc(64,
			git_revwalk__commit_hash,
			git_revwalk__commit_keycmp);

	if (walk->commits == NULL) {
		free(walk);
		return GIT_ENOMEM;
	}

	walk->repo = repo;

	*revwalk_out = walk;
	return GIT_SUCCESS;
}
Пример #19
0
char *cl_getenv(const char *name)
{
	wchar_t name_utf16[GIT_WIN_PATH];
	DWORD alloc_len;
	wchar_t *value_utf16;
	char *value_utf8;

	git__utf8_to_16(name_utf16, GIT_WIN_PATH, name);
	alloc_len = GetEnvironmentVariableW(name_utf16, NULL, 0);
	if (alloc_len <= 0)
		return NULL;

	alloc_len = GIT_WIN_PATH;
	cl_assert(value_utf16 = git__calloc(alloc_len, sizeof(wchar_t)));

	GetEnvironmentVariableW(name_utf16, value_utf16, alloc_len);

	cl_assert(value_utf8 = git__malloc(alloc_len));
	git__utf16_to_8(value_utf8, value_utf16);

	git__free(value_utf16);

	return value_utf8;
}
Пример #20
0
int git_index__parse(git_index *index, const char *buffer, size_t buffer_size)
{
	unsigned int i;
	struct index_header header;
	git_oid checksum_calculated, checksum_expected;

#define seek_forward(_increase) { \
	if (_increase >= buffer_size) \
		return GIT_EOBJCORRUPTED; \
	buffer += _increase; \
	buffer_size -= _increase;\
}

	if (buffer_size < INDEX_HEADER_SIZE + INDEX_FOOTER_SIZE)
		return GIT_EOBJCORRUPTED;

	/* Precalculate the SHA1 of the files's contents -- we'll match it to
	 * the provided SHA1 in the footer */
	git_hash_buf(&checksum_calculated, (const void *)buffer, buffer_size - INDEX_FOOTER_SIZE);

	/* Parse header */
	if (read_header(&header, buffer) < 0)
		return GIT_EOBJCORRUPTED;

	seek_forward(INDEX_HEADER_SIZE);

	index->entry_count = header.entry_count;

	/* If there is already a entires array, reuse it if it can hold all the
	 * entries. If not, free and reallocate */
	if (index->entry_count > index->entries_size) {
		free(index->entries);
		index->entries_size = (uint32_t)(index->entry_count * 1.3f);
		index->entries = git__malloc(index->entries_size * sizeof(git_index_entry));
	}

	/* Parse all the entries */
	for (i = 0; i < index->entry_count && buffer_size > INDEX_FOOTER_SIZE; ++i) {
		size_t entry_size;
		entry_size = read_entry(&index->entries[i], buffer, buffer_size);

		/* 0 bytes read means an object corruption */
		if (entry_size == 0)
			return GIT_EOBJCORRUPTED;

		seek_forward(entry_size);
	}

	if (i != index->entry_count)
		return GIT_EOBJCORRUPTED;

	/* There's still space for some extensions! */
	while (buffer_size > INDEX_FOOTER_SIZE) {
		size_t extension_size;

		extension_size = read_extension(index, buffer, buffer_size);

		/* see if we have read any bytes from the extension */
		if (extension_size == 0)
			return GIT_EOBJCORRUPTED;

		seek_forward(extension_size);
	}

	if (buffer_size != INDEX_FOOTER_SIZE)
		return GIT_EOBJCORRUPTED;

	/* 160-bit SHA-1 over the content of the index file before this checksum. */
	git_oid_mkraw(&checksum_expected, (const unsigned char *)buffer);

	if (git_oid_cmp(&checksum_calculated, &checksum_expected) != 0)
		return GIT_EOBJCORRUPTED;

#undef seek_forward

	return 0;
}
Пример #21
0
static git_index_tree *read_tree_internal(
		const char **buffer_in, const char *buffer_end, git_index_tree *parent)
{
	git_index_tree *tree;
	const char *name_start, *buffer;

	if ((tree = git__malloc(sizeof(git_index_tree))) == NULL)
		return NULL;

	memset(tree, 0x0, sizeof(git_index_tree));
	tree->parent = parent;

	buffer = name_start = *buffer_in;

	if ((buffer = memchr(buffer, '\0', buffer_end - buffer)) == NULL)
		goto error_cleanup;

	/* NUL-terminated tree name */
	tree->name = git__strdup(name_start);
	if (++buffer >= buffer_end)
		goto error_cleanup;

	/* Blank-terminated ASCII decimal number of entries in this tree */
	tree->entries = strtol(buffer, (char **)&buffer, 10);
	if (*buffer != ' ' || ++buffer >= buffer_end)
		goto error_cleanup;

	 /* Number of children of the tree, newline-terminated */
	tree->children_count = strtol(buffer, (char **)&buffer, 10);
	if (*buffer != '\n' || ++buffer >= buffer_end)
		goto error_cleanup;

	/* 160-bit SHA-1 for this tree and it's children */
	if (buffer + GIT_OID_RAWSZ > buffer_end)
		goto error_cleanup;

	git_oid_mkraw(&tree->oid, (const unsigned char *)buffer);
	buffer += GIT_OID_RAWSZ;

	/* Parse children: */
	if (tree->children_count > 0) {
		unsigned int i;

		tree->children = git__malloc(tree->children_count * sizeof(git_index_tree *));
		if (tree->children == NULL)
			goto error_cleanup;

		for (i = 0; i < tree->children_count; ++i) {
			tree->children[i] = read_tree_internal(&buffer, buffer_end, tree);

			if (tree->children[i] == NULL)
				goto error_cleanup;
		}
	}

	*buffer_in = buffer;
	return tree;

error_cleanup:
	git_index_tree__free(tree);
	return NULL;
}
Пример #22
0
int git_index_insert(git_index *index, const git_index_entry *source_entry)
{
	git_index_entry *offset;
	size_t path_length;
	int position;

	assert(index && source_entry);

	if (source_entry->path == NULL)
		return GIT_EMISSINGOBJDATA;

	position = git_index_find(index, source_entry->path);

	if (position == GIT_ENOTFOUND) {

		/* Resize the entries array */
		if (index->entry_count + 1 > index->entries_size) {
			git_index_entry *new_entries;
			size_t new_size;

			new_size = (unsigned int)(index->entries_size * 1.5f);
			if (new_size < 8)
				new_size = 8;

			if ((new_entries = git__malloc(new_size * sizeof(git_index_entry))) == NULL)
				return GIT_ENOMEM;

			memcpy(new_entries, index->entries, index->entry_count * sizeof(git_index_entry));
			free(index->entries);

			index->entries_size = new_size;
			index->entries = new_entries;
		}

		offset = &index->entries[index->entry_count];
		index->entry_count++;
		index->sorted = 0;

	} else {
		offset = &index->entries[position];
		free(offset->path);
	}

	memcpy(offset, source_entry, sizeof(git_index_entry));

	/* duplicate the path string so we own it */
	offset->path = git__strdup(offset->path);
	if (offset->path == NULL)
		return GIT_ENOMEM;

	/* make sure that the path length flag is correct */
	path_length = strlen(offset->path);

	offset->flags &= ~GIT_IDXENTRY_NAMEMASK;

	if (path_length < GIT_IDXENTRY_NAMEMASK)
		offset->flags |= path_length & GIT_IDXENTRY_NAMEMASK;
	else
		offset->flags |= GIT_IDXENTRY_NAMEMASK;;

	/* TODO: force the extended index entry flag? */

	assert(offset->path);

	return GIT_SUCCESS;
}
Пример #23
0
int p_readlink(const char *link, char *target, size_t target_len)
{
	typedef DWORD (WINAPI *fpath_func)(HANDLE, LPWSTR, DWORD, DWORD);
	static fpath_func pGetFinalPath = NULL;
	HANDLE hFile;
	DWORD dwRet;
	wchar_t link_w[GIT_WIN_PATH];
	wchar_t* target_w;
	int error = 0;

	assert(link && target && target_len > 0);

	/*
	 * Try to load the pointer to pGetFinalPath dynamically, because
	 * it is not available in platforms older than Vista
	 */
	if (pGetFinalPath == NULL) {
		HMODULE module = GetModuleHandle("kernel32");

		if (module != NULL)
			pGetFinalPath = (fpath_func)GetProcAddress(module, "GetFinalPathNameByHandleW");

		if (pGetFinalPath == NULL) {
			giterr_set(GITERR_OS,
				"'GetFinalPathNameByHandleW' is not available in this platform");
			return -1;
		}
	}

	git__utf8_to_16(link_w, GIT_WIN_PATH, link);

	hFile = CreateFileW(link_w,			// file to open
			GENERIC_READ,			// open for reading
			FILE_SHARE_READ,		// share for reading
			NULL,					// default security
			OPEN_EXISTING,			// existing file only
			FILE_FLAG_BACKUP_SEMANTICS, // normal file
			NULL);					// no attr. template

	if (hFile == INVALID_HANDLE_VALUE) {
		giterr_set(GITERR_OS, "Cannot open '%s' for reading", link);
		return -1;
	}

	target_w = (wchar_t*)git__malloc(target_len * sizeof(wchar_t));
	GITERR_CHECK_ALLOC(target_w);

	dwRet = pGetFinalPath(hFile, target_w, (DWORD)target_len, 0x0);
	if (dwRet == 0 ||
		dwRet >= target_len ||
		!WideCharToMultiByte(CP_UTF8, 0, target_w, -1, target,
			(int)(target_len * sizeof(char)), NULL, NULL))
		error = -1;

	git__free(target_w);
	CloseHandle(hFile);

	if (error)
		return error;

	/* Skip first 4 characters if they are "\\?\" */
	if (dwRet > 4 &&
		target[0] == '\\' && target[1] == '\\' &&
		target[2] == '?' && target[3] == '\\')
	{
		unsigned int offset = 4;
		dwRet -= 4;

		/* \??\UNC\ */
		if (dwRet > 7 &&
			target[4] == 'U' && target[5] == 'N' && target[6] == 'C')
		{
			offset += 2;
			dwRet -= 2;
			target[offset] = '\\';
		}

		memmove(target, target + offset, dwRet);
	}

	target[dwRet] = '\0';

	return dwRet;
}
Пример #24
0
int git_commit__parse_raw(void *_commit, const char *data, size_t size)
{
	git_commit *commit = _commit;
	const char *buffer_start = data, *buffer;
	const char *buffer_end = buffer_start + size;
	git_oid parent_id;
	size_t header_len;
	git_signature dummy_sig;

	buffer = buffer_start;

	/* Allocate for one, which will allow not to realloc 90% of the time  */
	git_array_init_to_size(commit->parent_ids, 1);
	GITERR_CHECK_ARRAY(commit->parent_ids);

	/* The tree is always the first field */
	if (git_oid__parse(&commit->tree_id, &buffer, buffer_end, "tree ") < 0)
		goto bad_buffer;

	/*
	 * TODO: commit grafts!
	 */

	while (git_oid__parse(&parent_id, &buffer, buffer_end, "parent ") == 0) {
		git_oid *new_id = git_array_alloc(commit->parent_ids);
		GITERR_CHECK_ALLOC(new_id);

		git_oid_cpy(new_id, &parent_id);
	}

	commit->author = git__malloc(sizeof(git_signature));
	GITERR_CHECK_ALLOC(commit->author);

	if (git_signature__parse(commit->author, &buffer, buffer_end, "author ", '\n') < 0)
		return -1;

	/* Some tools create multiple author fields, ignore the extra ones */
	while (!git__prefixncmp(buffer, buffer_end - buffer, "author ")) {
		if (git_signature__parse(&dummy_sig, &buffer, buffer_end, "author ", '\n') < 0)
			return -1;

		git__free(dummy_sig.name);
		git__free(dummy_sig.email);
	}

	/* Always parse the committer; we need the commit time */
	commit->committer = git__malloc(sizeof(git_signature));
	GITERR_CHECK_ALLOC(commit->committer);

	if (git_signature__parse(commit->committer, &buffer, buffer_end, "committer ", '\n') < 0)
		return -1;

	/* Parse add'l header entries */
	while (buffer < buffer_end) {
		const char *eoln = buffer;
		if (buffer[-1] == '\n' && buffer[0] == '\n')
			break;

		while (eoln < buffer_end && *eoln != '\n')
			++eoln;

		if (git__prefixncmp(buffer, buffer_end - buffer, "encoding ") == 0) {
			buffer += strlen("encoding ");

			commit->message_encoding = git__strndup(buffer, eoln - buffer);
			GITERR_CHECK_ALLOC(commit->message_encoding);
		}

		if (eoln < buffer_end && *eoln == '\n')
			++eoln;
		buffer = eoln;
	}

	header_len = buffer - buffer_start;
	commit->raw_header = git__strndup(buffer_start, header_len);
	GITERR_CHECK_ALLOC(commit->raw_header);

	/* point "buffer" to data after header, +1 for the final LF */
	buffer = buffer_start + header_len + 1;

	/* extract commit message */
	if (buffer <= buffer_end)
		commit->raw_message = git__strndup(buffer, buffer_end - buffer);
	else
		commit->raw_message = git__strdup("");
	GITERR_CHECK_ALLOC(commit->raw_message);

	return 0;

bad_buffer:
	giterr_set(GITERR_OBJECT, "failed to parse bad commit object");
	return -1;
}
Пример #25
0
static int http_stream_write_chunked(
	git_smart_subtransport_stream *stream,
	const char *buffer,
	size_t len)
{
	http_stream *s = (http_stream *)stream;
	http_subtransport *t = OWNING_SUBTRANSPORT(s);

	assert(t->connected);

	/* Send the request, if necessary */
	if (!s->sent_request) {
		git_buf request = GIT_BUF_INIT;

		clear_parser_state(t);

		if (gen_request(&request, s, 0) < 0) {
			giterr_set(GITERR_NET, "Failed to generate request");
			return -1;
		}

		if (gitno_send(&t->socket, request.ptr, request.size, 0) < 0) {
			git_buf_free(&request);
			return -1;
		}

		git_buf_free(&request);

		s->sent_request = 1;
	}

	if (len > CHUNK_SIZE) {
		/* Flush, if necessary */
		if (s->chunk_buffer_len > 0) {
			if (write_chunk(&t->socket, s->chunk_buffer, s->chunk_buffer_len) < 0)
				return -1;

			s->chunk_buffer_len = 0;
		}

		/* Write chunk directly */
		if (write_chunk(&t->socket, buffer, len) < 0)
			return -1;
	}
	else {
		/* Append as much to the buffer as we can */
		int count = min(CHUNK_SIZE - s->chunk_buffer_len, len);

		if (!s->chunk_buffer)
			s->chunk_buffer = git__malloc(CHUNK_SIZE);

		memcpy(s->chunk_buffer + s->chunk_buffer_len, buffer, count);
		s->chunk_buffer_len += count;
		buffer += count;
		len -= count;

		/* Is the buffer full? If so, then flush */
		if (CHUNK_SIZE == s->chunk_buffer_len) {
			if (write_chunk(&t->socket, s->chunk_buffer, s->chunk_buffer_len) < 0)
				return -1;

			s->chunk_buffer_len = 0;

			if (len > 0) {
				memcpy(s->chunk_buffer, buffer, len);
				s->chunk_buffer_len = len;
			}
		}
	}

	return 0;
}
Пример #26
0
int git_signature__parse(git_signature *sig, const char **buffer_out,
		const char *buffer_end, const char *header)
{
	const size_t header_len = strlen(header);

	int name_length, email_length;
	const char *buffer = *buffer_out;
	const char *line_end, *name_end, *email_end;
	long offset = 0, time;

	memset(sig, 0x0, sizeof(git_signature));

	line_end = memchr(buffer, '\n', buffer_end - buffer);
	if (!line_end)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. No newline found");;

	if (buffer + (header_len + 1) > line_end)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Signature too short");

	if (memcmp(buffer, header, header_len) != 0)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Expected prefix '%s' doesn't match actual", header);

	buffer += header_len;

	/* Parse name */
	if ((name_end = strstr(buffer, " <")) == NULL)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Can't find e-mail start");

	name_length = name_end - buffer;
	if (name_length <= 0)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Missing tagger name");

	sig->name = git__malloc(name_length + 1);
	if (sig->name == NULL)
		return GIT_ENOMEM;

	memcpy(sig->name, buffer, name_length);
	sig->name[name_length] = 0;
	buffer = name_end + 2;

	if (buffer >= line_end)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Ended unexpectedly");

	/* Parse email */
	if ((email_end = strstr(buffer, "> ")) == NULL)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Can't find e-mail end");

	email_length = email_end - buffer;
	sig->email = git__malloc(email_length + 1);
	if (sig->name == NULL)
		return GIT_ENOMEM;

	memcpy(sig->email, buffer, email_length);
	sig->email[email_length] = 0;
	buffer = email_end + 2;

	if (buffer >= line_end)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Ended unexpectedly");

	/* verify email */
	if (strpbrk(sig->email, "><\n ") != NULL)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Malformed e-mail");

	if (git__strtol32(&time, buffer, &buffer, 10) < GIT_SUCCESS)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Timestamp isn't a number");

	sig->when.time = (time_t)time;

	if (parse_timezone_offset(buffer, &offset) < GIT_SUCCESS)
		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse signature. Could not parse timezone offset");
	
	sig->when.offset = offset;

	*buffer_out = (line_end + 1);
	return GIT_SUCCESS;
}
Пример #27
0
static int winhttp_stream_read(
	git_smart_subtransport_stream *stream,
	char *buffer,
	size_t buf_size,
	size_t *bytes_read)
{
	winhttp_stream *s = (winhttp_stream *)stream;
	winhttp_subtransport *t = OWNING_SUBTRANSPORT(s);
	DWORD dw_bytes_read;
	char replay_count = 0;
	int error;

replay:
	/* Enforce a reasonable cap on the number of replays */
	if (++replay_count >= 7) {
		giterr_set(GITERR_NET, "Too many redirects or authentication replays");
		return -1;
	}

	/* Connect if necessary */
	if (!s->request && winhttp_stream_connect(s) < 0)
		return -1;

	if (!s->received_response) {
		DWORD status_code, status_code_length, content_type_length, bytes_written;
		char expected_content_type_8[MAX_CONTENT_TYPE_LEN];
		wchar_t expected_content_type[MAX_CONTENT_TYPE_LEN], content_type[MAX_CONTENT_TYPE_LEN];

		if (!s->sent_request) {

			if ((error = send_request(s, s->post_body_len, 0)) < 0)
				return error;

			s->sent_request = 1;
		}

		if (s->chunked) {
			assert(s->verb == post_verb);

			/* Flush, if necessary */
			if (s->chunk_buffer_len > 0 &&
				write_chunk(s->request, s->chunk_buffer, s->chunk_buffer_len) < 0)
				return -1;

			s->chunk_buffer_len = 0;

			/* Write the final chunk. */
			if (!WinHttpWriteData(s->request,
				"0\r\n\r\n", 5,
				&bytes_written)) {
				giterr_set(GITERR_OS, "Failed to write final chunk");
				return -1;
			}
		}
		else if (s->post_body) {
			char *buffer;
			DWORD len = s->post_body_len, bytes_read;

			if (INVALID_SET_FILE_POINTER == SetFilePointer(s->post_body,
					0, 0, FILE_BEGIN) &&
				NO_ERROR != GetLastError()) {
				giterr_set(GITERR_OS, "Failed to reset file pointer");
				return -1;
			}

			buffer = git__malloc(CACHED_POST_BODY_BUF_SIZE);

			while (len > 0) {
				DWORD bytes_written;

				if (!ReadFile(s->post_body, buffer,
					min(CACHED_POST_BODY_BUF_SIZE, len),
					&bytes_read, NULL) ||
					!bytes_read) {
					git__free(buffer);
					giterr_set(GITERR_OS, "Failed to read from temp file");
					return -1;
				}

				if (!WinHttpWriteData(s->request, buffer,
					bytes_read, &bytes_written)) {
					git__free(buffer);
					giterr_set(GITERR_OS, "Failed to write data");
					return -1;
				}

				len -= bytes_read;
				assert(bytes_read == bytes_written);
			}

			git__free(buffer);

			/* Eagerly close the temp file */
			CloseHandle(s->post_body);
			s->post_body = NULL;
		}

		if (!WinHttpReceiveResponse(s->request, 0)) {
			giterr_set(GITERR_OS, "Failed to receive response");
			return -1;
		}

		/* Verify that we got a 200 back */
		status_code_length = sizeof(status_code);

		if (!WinHttpQueryHeaders(s->request,
			WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER,
			WINHTTP_HEADER_NAME_BY_INDEX,
			&status_code, &status_code_length,
			WINHTTP_NO_HEADER_INDEX)) {
				giterr_set(GITERR_OS, "Failed to retrieve status code");
				return -1;
		}

		/* The implementation of WinHTTP prior to Windows 7 will not
		 * redirect to an identical URI. Some Git hosters use self-redirects
		 * as part of their DoS mitigation strategy. Check first to see if we
		 * have a redirect status code, and that we haven't already streamed
		 * a post body. (We can't replay a streamed POST.) */
		if (!s->chunked &&
			(HTTP_STATUS_MOVED == status_code ||
			 HTTP_STATUS_REDIRECT == status_code ||
			 (HTTP_STATUS_REDIRECT_METHOD == status_code &&
			  get_verb == s->verb) ||
			 HTTP_STATUS_REDIRECT_KEEP_VERB == status_code)) {

			/* Check for Windows 7. This workaround is only necessary on
			 * Windows Vista and earlier. Windows 7 is version 6.1. */
			wchar_t *location;
			DWORD location_length;
			char *location8;

			/* OK, fetch the Location header from the redirect. */
			if (WinHttpQueryHeaders(s->request,
				WINHTTP_QUERY_LOCATION,
				WINHTTP_HEADER_NAME_BY_INDEX,
				WINHTTP_NO_OUTPUT_BUFFER,
				&location_length,
				WINHTTP_NO_HEADER_INDEX) ||
				GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
				giterr_set(GITERR_OS, "Failed to read Location header");
				return -1;
			}

			location = git__malloc(location_length);
			GITERR_CHECK_ALLOC(location);

			if (!WinHttpQueryHeaders(s->request,
				WINHTTP_QUERY_LOCATION,
				WINHTTP_HEADER_NAME_BY_INDEX,
				location,
				&location_length,
				WINHTTP_NO_HEADER_INDEX)) {
				giterr_set(GITERR_OS, "Failed to read Location header");
				git__free(location);
				return -1;
			}

			/* Convert the Location header to UTF-8 */
			if (git__utf16_to_8_alloc(&location8, location) < 0) {
				giterr_set(GITERR_OS, "Failed to convert Location header to UTF-8");
				git__free(location);
				return -1;
			}

			git__free(location);

			/* Replay the request */
			winhttp_stream_close(s);

			if (!git__prefixcmp_icase(location8, prefix_https)) {
				/* Upgrade to secure connection; disconnect and start over */
				if (gitno_connection_data_from_url(&t->connection_data, location8, s->service_url) < 0) {
					git__free(location8);
					return -1;
				}

				winhttp_close_connection(t);

				if (winhttp_connect(t) < 0)
					return -1;
			}

			git__free(location8);
			goto replay;
		}

		/* Handle authentication failures */
		if (HTTP_STATUS_DENIED == status_code && get_verb == s->verb) {
			int allowed_types;

			if (parse_unauthorized_response(s->request, &allowed_types, &t->auth_mechanism) < 0)
				return -1;

			if (allowed_types &&
				(!t->cred || 0 == (t->cred->credtype & allowed_types))) {
				int cred_error = 1;

				/* Start with the user-supplied credential callback, if present */
				if (t->owner->cred_acquire_cb) {
					cred_error = t->owner->cred_acquire_cb(&t->cred, t->owner->url,
						t->connection_data.user, allowed_types,	t->owner->cred_acquire_payload);

					if (cred_error < 0)
						return cred_error;
				}

				/* Invoke the fallback credentials acquisition callback if necessary */
				if (cred_error > 0) {
					cred_error = fallback_cred_acquire_cb(&t->cred, t->owner->url,
						t->connection_data.user, allowed_types, NULL);

					if (cred_error < 0)
						return cred_error;
				}

				if (!cred_error) {
					assert(t->cred);

					winhttp_stream_close(s);

					/* Successfully acquired a credential */
					goto replay;
				}
			}
		}

		if (HTTP_STATUS_OK != status_code) {
			giterr_set(GITERR_NET, "Request failed with status code: %d", status_code);
			return -1;
		}

		/* Verify that we got the correct content-type back */
		if (post_verb == s->verb)
			p_snprintf(expected_content_type_8, MAX_CONTENT_TYPE_LEN, "application/x-git-%s-result", s->service);
		else
			p_snprintf(expected_content_type_8, MAX_CONTENT_TYPE_LEN, "application/x-git-%s-advertisement", s->service);

		if (git__utf8_to_16(expected_content_type, MAX_CONTENT_TYPE_LEN, expected_content_type_8) < 0) {
			giterr_set(GITERR_OS, "Failed to convert expected content-type to wide characters");
			return -1;
		}

		content_type_length = sizeof(content_type);

		if (!WinHttpQueryHeaders(s->request,
			WINHTTP_QUERY_CONTENT_TYPE,
			WINHTTP_HEADER_NAME_BY_INDEX,
			&content_type, &content_type_length,
			WINHTTP_NO_HEADER_INDEX)) {
				giterr_set(GITERR_OS, "Failed to retrieve response content-type");
				return -1;
		}

		if (wcscmp(expected_content_type, content_type)) {
			giterr_set(GITERR_NET, "Received unexpected content-type");
			return -1;
		}

		s->received_response = 1;
	}

	if (!WinHttpReadData(s->request,
		(LPVOID)buffer,
		(DWORD)buf_size,
		&dw_bytes_read))
	{
		giterr_set(GITERR_OS, "Failed to read data");
		return -1;
	}

	*bytes_read = dw_bytes_read;

	return 0;
}
Пример #28
0
static int winhttp_stream_write_chunked(
	git_smart_subtransport_stream *stream,
	const char *buffer,
	size_t len)
{
	winhttp_stream *s = (winhttp_stream *)stream;
	int error;

	if (!s->request && winhttp_stream_connect(s) < 0)
		return -1;

	if (!s->sent_request) {
		/* Send Transfer-Encoding: chunked header */
		if (!WinHttpAddRequestHeaders(s->request,
			transfer_encoding, (ULONG) -1L,
			WINHTTP_ADDREQ_FLAG_ADD)) {
			giterr_set(GITERR_OS, "Failed to add a header to the request");
			return -1;
		}

		if ((error = send_request(s, 0, 1)) < 0)
			return error;

		s->sent_request = 1;
	}

	if (len > CACHED_POST_BODY_BUF_SIZE) {
		/* Flush, if necessary */
		if (s->chunk_buffer_len > 0) {
			if (write_chunk(s->request, s->chunk_buffer, s->chunk_buffer_len) < 0)
				return -1;

			s->chunk_buffer_len = 0;
		}

		/* Write chunk directly */
		if (write_chunk(s->request, buffer, len) < 0)
			return -1;
	}
	else {
		/* Append as much to the buffer as we can */
		int count = (int)min(CACHED_POST_BODY_BUF_SIZE - s->chunk_buffer_len, len);

		if (!s->chunk_buffer)
			s->chunk_buffer = git__malloc(CACHED_POST_BODY_BUF_SIZE);

		memcpy(s->chunk_buffer + s->chunk_buffer_len, buffer, count);
		s->chunk_buffer_len += count;
		buffer += count;
		len -= count;

		/* Is the buffer full? If so, then flush */
		if (CACHED_POST_BODY_BUF_SIZE == s->chunk_buffer_len) {
			if (write_chunk(s->request, s->chunk_buffer, s->chunk_buffer_len) < 0)
				return -1;

			s->chunk_buffer_len = 0;

			/* Is there any remaining data from the source? */
			if (len > 0) {
				memcpy(s->chunk_buffer, buffer, len);
				s->chunk_buffer_len = (unsigned int)len;
			}
		}
	}

	return 0;
}
Пример #29
0
int commit_parse_buffer(git_commit *commit, void *data, size_t len, unsigned int parse_flags)
{
	char *buffer = (char *)data;
	const char *buffer_end = (char *)data + len;

	git_oid oid;
	int error;

	/* first parse; the vector hasn't been initialized yet */
	if (commit->parents.contents == NULL) {
		git_vector_init(&commit->parents, 4, NULL, NULL);
	}

	clear_parents(commit);


	if ((error = git__parse_oid(&oid, &buffer, buffer_end, "tree ")) < GIT_SUCCESS)
		return error;

	if ((error = git_repository_lookup((git_object **)&commit->tree, commit->object.repo, &oid, GIT_OBJ_TREE)) < GIT_SUCCESS)
		return error;

	/*
	 * TODO: commit grafts!
	 */

	while (git__parse_oid(&oid, &buffer, buffer_end, "parent ") == GIT_SUCCESS) {
		git_commit *parent;

		if ((error = git_repository_lookup((git_object **)&parent, commit->object.repo, &oid, GIT_OBJ_COMMIT)) < GIT_SUCCESS)
			return error;

		if (git_vector_insert(&commit->parents, parent) < GIT_SUCCESS)
			return GIT_ENOMEM;
	}


	if (parse_flags & COMMIT_FULL_PARSE) {
		if (commit->author)
			git_signature_free(commit->author);

		commit->author = git__malloc(sizeof(git_signature));
		if ((error = git_signature__parse(commit->author, &buffer, buffer_end, "author ")) < GIT_SUCCESS)
			return error;

	} else {
		if ((buffer = memchr(buffer, '\n', buffer_end - buffer)) == NULL)
			return GIT_EOBJCORRUPTED;

		buffer++;
	}

	/* Always parse the committer; we need the commit time */
	if (commit->committer)
		git_signature_free(commit->committer);

	commit->committer = git__malloc(sizeof(git_signature));
	if ((error = git_signature__parse(commit->committer, &buffer, buffer_end, "committer ")) < GIT_SUCCESS)
		return error;

	/* parse commit message */
	while (buffer <= buffer_end && *buffer == '\n')
		buffer++;

	if (parse_flags & COMMIT_FULL_PARSE && buffer < buffer_end) {
		const char *line_end;
		size_t message_len = buffer_end - buffer;

		/* Long message */
		message_len = buffer_end - buffer;
		commit->message = git__malloc(message_len + 1);
		memcpy(commit->message, buffer, message_len);
		commit->message[message_len] = 0;

		/* Short message */
		if((line_end = memchr(buffer, '\n', buffer_end - buffer)) == NULL)
			line_end = buffer_end;
		message_len = line_end - buffer;

		commit->message_short = git__malloc(message_len + 1);
		memcpy(commit->message_short, buffer, message_len);
		commit->message_short[message_len] = 0;
	}

	return GIT_SUCCESS;
}
Пример #30
0
static int crlf_check(
	git_filter        *self,
	void              **payload, /* points to NULL ptr on entry, may be set */
	const git_filter_source *src,
	const char **attr_values)
{
	int error;
	struct crlf_attrs ca;

	GIT_UNUSED(self);

	if (!attr_values) {
		ca.crlf_action = GIT_CRLF_GUESS;
		ca.eol = GIT_EOL_UNSET;
	} else {
		ca.crlf_action = check_crlf(attr_values[2]); /* text */
		if (ca.crlf_action == GIT_CRLF_GUESS)
			ca.crlf_action = check_crlf(attr_values[0]); /* clrf */
		ca.eol = check_eol(attr_values[1]); /* eol */
	}
	ca.auto_crlf = GIT_AUTO_CRLF_DEFAULT;

	/*
	 * Use the core Git logic to see if we should perform CRLF for this file
	 * based on its attributes & the value of `core.autocrlf`
	 */
	ca.crlf_action = crlf_input_action(&ca);

	if (ca.crlf_action == GIT_CRLF_BINARY)
		return GIT_PASSTHROUGH;

	if (ca.crlf_action == GIT_CRLF_GUESS ||
		(ca.crlf_action == GIT_CRLF_AUTO &&
		git_filter_source_mode(src) == GIT_FILTER_SMUDGE)) {

		error = git_repository__cvar(
			&ca.auto_crlf, git_filter_source_repo(src), GIT_CVAR_AUTO_CRLF);
		if (error < 0)
			return error;

		if (ca.auto_crlf == GIT_AUTO_CRLF_FALSE)
			return GIT_PASSTHROUGH;

		if (ca.auto_crlf == GIT_AUTO_CRLF_INPUT &&
			git_filter_source_mode(src) == GIT_FILTER_SMUDGE)
			return GIT_PASSTHROUGH;
	}

	if (git_filter_source_mode(src) == GIT_FILTER_CLEAN) {
		error = git_repository__cvar(
			&ca.safe_crlf, git_filter_source_repo(src), GIT_CVAR_SAFE_CRLF);
		if (error < 0)
			return error;

		/* downgrade FAIL to WARN if ALLOW_UNSAFE option is used */
		if ((git_filter_source_options(src) & GIT_FILTER_OPT_ALLOW_UNSAFE) &&
			ca.safe_crlf == GIT_SAFE_CRLF_FAIL)
			ca.safe_crlf = GIT_SAFE_CRLF_WARN;
	}

	*payload = git__malloc(sizeof(ca));
	GITERR_CHECK_ALLOC(*payload);
	memcpy(*payload, &ca, sizeof(ca));

	return 0;
}