/* Retrieves the string index for a specific identifier * Returns 1 if successful, 0 if no such string identifier or -1 on error */ int libwrc_string_get_index_by_identifier( libwrc_resource_t *resource, uint32_t language_identifier, uint32_t string_identifier, int *string_index, libcerror_error_t **error ) { libfvalue_value_t *string_value = NULL; libwrc_internal_resource_t *internal_resource = NULL; libwrc_language_entry_t *language_entry = NULL; uint8_t *string_value_identifier = NULL; static char *function = "libwrc_string_get_index_by_identifier"; size_t string_value_identifier_size = 0; uint32_t identifier = 0; int number_of_strings = 0; if( resource == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid resource.", function ); return( -1 ); } internal_resource = (libwrc_internal_resource_t *) resource; if( internal_resource->resource_values == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, "%s: invalid resource - missing resource values.", function ); return( -1 ); } if( internal_resource->resource_values->identifier != LIBWRC_RESOURCE_IDENTIFIER_STRING ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, "%s: unsupported resource type: 0x%08" PRIx32 ".", function, internal_resource->resource_values->identifier ); return( -1 ); } if( internal_resource->value == NULL ) { if( libwrc_resource_read_value( internal_resource, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_IO, LIBCERROR_IO_ERROR_READ_FAILED, "%s: unable to read resource value.", function ); return( -1 ); } } if( libwrc_language_table_get_entry_by_identifier( (libwrc_language_table_t *) internal_resource->value, language_identifier, &language_entry, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve language entry for identifier: 0x%08" PRIx32 ".", function, language_identifier ); return( -1 ); } if( libwrc_language_entry_get_number_of_values( language_entry, &number_of_strings, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve number of strings.", function ); return( -1 ); } for( *string_index = 0; *string_index < number_of_strings; *string_index += 1 ) { if( libwrc_language_entry_get_value_by_index( language_entry, *string_index, (intptr_t **) &string_value, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve string value: %d.", function, string_index ); return( -1 ); } if( libfvalue_value_get_identifier( string_value, &string_value_identifier, &string_value_identifier_size, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve string value: %d identifier.", function, string_index ); return( -1 ); } if( string_value_identifier == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, "%s: missing string value identifier.", function ); return( -1 ); } if( string_value_identifier_size != 4 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, "%s: string size value out of bound.", function ); return( -1 ); } byte_stream_copy_to_uint32_little_endian( string_value_identifier, identifier ); if( identifier == string_identifier ) { return( 1 ); } } return( 0 ); }
/* Generate an xhash * Sets xhash and xhash size * Returns 1 if successful or -1 on error */ int libewf_hash_values_generate_xhash( libfvalue_table_t *hash_values, uint8_t **xhash, size_t *xhash_size, libcerror_error_t **error ) { libfvalue_value_t *hash_value = NULL; uint8_t *identifier = NULL; char *xml_head = NULL; char *xml_xhash_close_tag = NULL; char *xml_xhash_open_tag = NULL; static char *function = "libewf_hash_values_generate_xhash"; size_t xhash_index = 0; size_t identifier_size = 0; size_t value_string_size = 0; size_t xml_head_length = 0; size_t xml_xhash_close_tag_length = 0; size_t xml_xhash_open_tag_length = 0; int hash_value_index = 0; int number_of_hash_values = 0; int result = 0; if( xhash == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid xhash.", function ); return( -1 ); } if( *xhash != NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: xhash already created.", function ); return( -1 ); } if( xhash_size == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid xhash size.", function ); return( -1 ); } if( libfvalue_table_get_number_of_values( hash_values, &number_of_hash_values, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve number of hash values.", function ); goto on_error; } xml_head = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"; xml_head_length = libcstring_narrow_string_length( xml_head ); xml_xhash_open_tag = "<xhash>\n"; xml_xhash_open_tag_length = libcstring_narrow_string_length( xml_xhash_open_tag ); xml_xhash_close_tag = "</xhash>\n\n"; xml_xhash_close_tag_length = libcstring_narrow_string_length( xml_xhash_close_tag ); /* Reserve space for the UTF-8 byte order mark and the XML skeleton data */ *xhash_size = 3 + xml_head_length + xml_xhash_open_tag_length + xml_xhash_close_tag_length; for( hash_value_index = 0; hash_value_index < number_of_hash_values; hash_value_index++ ) { if( libfvalue_table_get_value_by_index( hash_values, hash_value_index, &hash_value, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve hash value: %d.", function, hash_value_index ); goto on_error; } if( libfvalue_value_get_identifier( hash_value, &identifier, &identifier_size, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve identifier of hash value: %d.", function, hash_value_index ); goto on_error; } if( ( identifier == NULL ) || ( identifier_size == 0 ) ) { #if defined( HAVE_VERBOSE_OUTPUT ) if( libcnotify_verbose != 0 ) { libcnotify_printf( "%s: missing identifier for hash value: %d.\n", function, hash_value_index ); } #endif continue; } result = libfvalue_value_get_utf8_string_size( hash_value, 0, &value_string_size, error ); if( result != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve string size of hash value: %s.", function, (char *) identifier ); goto on_error; } if( ( result != 0 ) && ( value_string_size > 1 ) ) { /* Reserve space for a leading tab, <identifier>value</identifier> and a newline */ *xhash_size += 7 + ( 2 * ( identifier_size - 1 ) ) + ( value_string_size - 1 ); } } /* Reserve space for the end-of-string character */ *xhash_size += 1; *xhash = (uint8_t *) memory_allocate( sizeof( uint8_t ) * *xhash_size ); if( *xhash == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: unable to create xhash.", function ); goto on_error; } ( *xhash )[ xhash_index++ ] = 0xef; ( *xhash )[ xhash_index++ ] = 0xbb; ( *xhash )[ xhash_index++ ] = 0xbf; if( libcstring_narrow_string_copy( (char *) &( ( *xhash )[ xhash_index ] ), xml_head, xml_head_length ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_COPY_FAILED, "%s: unable to copy XML head string.", function ); goto on_error; } xhash_index += xml_head_length; if( libcstring_narrow_string_copy( (char *) &( ( *xhash )[ xhash_index ] ), xml_xhash_open_tag, xml_xhash_open_tag_length ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_COPY_FAILED, "%s: unable to copy xhash open tag string.", function ); goto on_error; } xhash_index += xml_xhash_open_tag_length; for( hash_value_index = 0; hash_value_index < number_of_hash_values; hash_value_index++ ) { if( libfvalue_table_get_value_by_index( hash_values, hash_value_index, &hash_value, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve hash value: %d.", function, hash_value_index ); goto on_error; } if( libfvalue_value_get_identifier( hash_value, &identifier, &identifier_size, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve identifier of hash value: %d.", function, hash_value_index ); goto on_error; } if( ( identifier == NULL ) || ( identifier_size == 0 ) ) { #if defined( HAVE_VERBOSE_OUTPUT ) if( libcnotify_verbose != 0 ) { libcnotify_printf( "%s: missing identifier for hash value: %d.\n", function, hash_value_index ); } #endif continue; } result = libfvalue_value_get_utf8_string_size( hash_value, 0, &value_string_size, error ); if( result == -1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve string size of hash value: %s.", function, (char *) identifier ); goto on_error; } if( ( result != 0 ) && ( value_string_size > 1 ) ) { ( *xhash )[ xhash_index++ ] = (uint8_t) '\t'; ( *xhash )[ xhash_index++ ] = (uint8_t) '<'; if( libcstring_narrow_string_copy( (char *) &( ( *xhash )[ xhash_index ] ), (char *) identifier, identifier_size - 1 ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_COPY_FAILED, "%s: unable to copy %s open tag string.", function, (char *) identifier ); goto on_error; } xhash_index += identifier_size - 1; ( *xhash )[ xhash_index++ ] = (uint8_t) '>'; if( libfvalue_value_copy_to_utf8_string_with_index( hash_value, 0, *xhash, *xhash_size, &xhash_index, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_COPY_FAILED, "%s: unable to copy string of hash value: %s.", function, (char *) identifier ); goto on_error; } ( *xhash )[ xhash_index - 1 ] = (uint8_t) '<'; ( *xhash )[ xhash_index++ ] = (uint8_t) '/'; if( libcstring_narrow_string_copy( (char *) &( ( *xhash )[ xhash_index ] ), (char *) identifier, identifier_size - 1 ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_COPY_FAILED, "%s: unable to copy %s close tag string.", function, (char *) identifier ); goto on_error; } xhash_index += identifier_size - 1; ( *xhash )[ xhash_index++ ] = (uint8_t) '>'; ( *xhash )[ xhash_index++ ] = (uint8_t) '\n'; } } if( libcstring_narrow_string_copy( (char *) &( ( *xhash )[ xhash_index ] ), xml_xhash_close_tag, xml_xhash_close_tag_length ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_COPY_FAILED, "%s: unable to copy xhash close tag string.", function ); goto on_error; } xhash_index += xml_xhash_close_tag_length; /* Make sure the string is terminated */ ( *xhash )[ xhash_index ] = 0; return( 1 ); on_error: if( *xhash != NULL ) { memory_free( *xhash ); *xhash = NULL; } *xhash_size = 0; return( -1 ); }
/* Retrieves a specific string identifier * Returns 1 if successful or -1 on error */ int libwrc_string_get_identifier( libwrc_resource_t *resource, uint32_t language_identifier, int string_index, uint32_t *string_identifier, libcerror_error_t **error ) { libfvalue_value_t *string_values = NULL; uint8_t *string_value_identifier = NULL; static char *function = "libwrc_string_get_identifier"; size_t string_value_identifier_size = 0; if( libwrc_resource_get_value_by_language_identifier( resource, LIBWRC_RESOURCE_TYPE_STRING, language_identifier, string_index, (intptr_t **) &string_values, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve string values.", function ); return( -1 ); } /* TODO move to string values function */ if( string_identifier == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid string identifier.", function ); return( -1 ); } if( libfvalue_value_get_identifier( string_values, &string_value_identifier, &string_value_identifier_size, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_GET_FAILED, "%s: unable to retrieve string value: %d identifier.", function, string_index ); return( -1 ); } if( string_value_identifier == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, "%s: missing string value identifier.", function ); return( -1 ); } if( string_value_identifier_size != 4 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, "%s: string value dentifier size value out of bound.", function ); return( -1 ); } byte_stream_copy_to_uint32_little_endian( string_value_identifier, *string_identifier ); return( 1 ); }