/* Parse the NUL-terminated ID part at DATA and write the result into *PART.
* Return TRUE if no errors were detected. */
static svn_boolean_t
part_parse(svn_fs_fs__id_part_t *part,
const char *data)
{
const char *end;
/* special case: ID inside some transaction */
if (data[0] == '_')
{
part->revision = SVN_INVALID_REVNUM;
part->number = svn__base36toui64(&data, data + 1);
return *data == '\0';
}
/* special case: 0 / default ID */
if (data[0] == '0' && data[1] == '\0')
{
part->revision = 0;
part->number = 0;
return TRUE;
}
/* read old style / new style ID */
part->number = svn__base36toui64(&data, data);
if (data[0] != '-')
{
part->revision = 0;
return *data == '\0';
}
return locale_independent_strtol(&part->revision, data+1, &end);
}
/* Parse the transaction id in DATA and store the result in *TXN_ID.
* Return FALSE if there was some problem.
*/
static svn_boolean_t
txn_id_parse(svn_fs_fs__id_part_t *txn_id,
const char *data)
{
const char *end;
if (!locale_independent_strtol(&txn_id->revision, data, &end))
return FALSE;
data = end;
if (*data != '-')
return FALSE;
++data;
txn_id->number = svn__base36toui64(&data, data);
return *data == '\0';
}
svn_error_t *
svn_fs_fs__parse_representation(representation_t **rep_p,
svn_stringbuf_t *text,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
representation_t *rep;
char *str;
apr_int64_t val;
char *string = text->data;
svn_checksum_t *checksum;
const char *end;
rep = apr_pcalloc(result_pool, sizeof(*rep));
*rep_p = rep;
SVN_ERR(parse_revnum(&rep->revision, (const char **)&string));
/* initialize transaction info (never stored) */
svn_fs_fs__id_txn_reset(&rep->txn_id);
/* while in transactions, it is legal to simply write "-1" */
str = svn_cstring_tokenize(" ", &string);
if (str == NULL)
{
if (rep->revision == SVN_INVALID_REVNUM)
return SVN_NO_ERROR;
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
}
SVN_ERR(svn_cstring_atoi64(&val, str));
rep->item_index = (apr_uint64_t)val;
str = svn_cstring_tokenize(" ", &string);
if (str == NULL)
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
SVN_ERR(svn_cstring_atoi64(&val, str));
rep->size = (svn_filesize_t)val;
str = svn_cstring_tokenize(" ", &string);
if (str == NULL)
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
SVN_ERR(svn_cstring_atoi64(&val, str));
rep->expanded_size = (svn_filesize_t)val;
/* Read in the MD5 hash. */
str = svn_cstring_tokenize(" ", &string);
if ((str == NULL) || (strlen(str) != (APR_MD5_DIGESTSIZE * 2)))
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
SVN_ERR(svn_checksum_parse_hex(&checksum, svn_checksum_md5, str,
scratch_pool));
memcpy(rep->md5_digest, checksum->digest, sizeof(rep->md5_digest));
/* The remaining fields are only used for formats >= 4, so check that. */
str = svn_cstring_tokenize(" ", &string);
if (str == NULL)
return SVN_NO_ERROR;
/* Read the SHA1 hash. */
if (strlen(str) != (APR_SHA1_DIGESTSIZE * 2))
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
SVN_ERR(svn_checksum_parse_hex(&checksum, svn_checksum_sha1, str,
scratch_pool));
rep->has_sha1 = checksum != NULL;
memcpy(rep->sha1_digest, checksum->digest, sizeof(rep->sha1_digest));
/* Read the uniquifier. */
str = svn_cstring_tokenize("/", &string);
if (str == NULL)
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
SVN_ERR(svn_fs_fs__id_txn_parse(&rep->uniquifier.noderev_txn_id, str));
str = svn_cstring_tokenize(" ", &string);
if (str == NULL || *str != '_')
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
++str;
rep->uniquifier.number = svn__base36toui64(&end, str);
if (*end)
return svn_error_create(SVN_ERR_FS_CORRUPT, NULL,
_("Malformed text representation offset line in node-rev"));
return SVN_NO_ERROR;
}
