/* Copies an UTF-8 string from an UTF-32 string * Returns 1 if successful or -1 on error */ int libuna_utf8_string_copy_from_utf32( libuna_utf8_character_t *utf8_string, size_t utf8_string_size, const libuna_utf32_character_t *utf32_string, size_t utf32_string_size, liberror_error_t **error ) { static char *function = "libuna_utf8_string_copy_from_utf32"; size_t utf8_string_iterator = 0; size_t utf32_string_iterator = 0; libuna_unicode_character_t unicode_character = 0; if( utf8_string == NULL ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-8 string.", function ); return( -1 ); } if( utf8_string_size > (size_t) SSIZE_MAX ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-8 string size value exceeds maximum.", function ); return( -1 ); } if( utf32_string == NULL ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 string.", function ); return( -1 ); } if( utf32_string_size > (size_t) SSIZE_MAX ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-32 string size value exceeds maximum.", function ); return( -1 ); } while( utf32_string_iterator < utf32_string_size ) { /* Convert the UTF-32 character bytes into a Unicode character */ if( libuna_unicode_character_copy_from_utf32( &unicode_character, utf32_string, utf32_string_size, &utf32_string_iterator, error ) != 1 ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_CONVERSION, LIBERROR_CONVERSION_ERROR_INPUT_FAILED, "%s: unable to copy Unicode character from UTF-32.", function ); return( -1 ); } /* Convert the Unicode character into UTF-8 character bytes */ if( libuna_unicode_character_copy_to_utf8( unicode_character, utf8_string, utf8_string_size, &utf8_string_iterator, error ) != 1 ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_CONVERSION, LIBERROR_CONVERSION_ERROR_OUTPUT_FAILED, "%s: unable to copy Unicode character to UTF-8.", function ); return( -1 ); } } return( 1 ); }
/* Copies a byte stream from an UTF-32 string * Returns 1 if successful or -1 on error */ int libuna_byte_stream_copy_from_utf32( uint8_t *byte_stream, size_t byte_stream_size, int codepage, const libuna_utf32_character_t *utf32_string, size_t utf32_string_size, libcerror_error_t **error ) { static char *function = "libuna_byte_stream_copy_from_utf32"; size_t byte_stream_index = 0; size_t utf32_string_index = 0; libuna_unicode_character_t unicode_character = 0; if( byte_stream == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream.", function ); return( -1 ); } if( byte_stream_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid byte stream size value exceeds maximum.", function ); return( -1 ); } if( utf32_string == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 string.", function ); return( -1 ); } if( utf32_string_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-32 string size value exceeds maximum.", function ); return( -1 ); } while( utf32_string_index < utf32_string_size ) { /* Convert the UTF-32 string bytes into a Unicode character */ if( libuna_unicode_character_copy_from_utf32( &unicode_character, utf32_string, utf32_string_size, &utf32_string_index, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_INPUT_FAILED, "%s: unable to copy Unicode character from UTF-32 string.", function ); return( -1 ); } /* Convert the Unicode character into a byte stream */ if( libuna_unicode_character_copy_to_byte_stream( unicode_character, byte_stream, byte_stream_size, &byte_stream_index, codepage, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED, "%s: unable to copy Unicode character to byte stream.", function ); return( -1 ); } } return( 1 ); }
/* Determines the size of an UTF-32 stream from an UTF-32 string * Returns 1 if successful or -1 on error */ int libuna_utf32_stream_size_from_utf32( const libuna_utf32_character_t *utf32_string, size_t utf32_string_size, size_t *utf32_stream_size, libcerror_error_t **error ) { static char *function = "libuna_utf32_stream_size_from_utf32"; libuna_unicode_character_t unicode_character = 0; size_t utf32_string_index = 0; if( utf32_string == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 string.", function ); return( -1 ); } if( utf32_string_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-32 string size value exceeds maximum.", function ); return( -1 ); } if( utf32_stream_size == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 stream size.", function ); return( -1 ); } /* Add the byte order mark */ *utf32_stream_size = 1; while( utf32_string_index < utf32_string_size ) { /* Convert the UTF-32 character bytes into an Unicode character */ if( libuna_unicode_character_copy_from_utf32( &unicode_character, utf32_string, utf32_string_size, &utf32_string_index, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_INPUT_FAILED, "%s: unable to copy Unicode character from UTF-32.", function ); return( -1 ); } /* Determine how many UTF-32 character bytes are required */ if( libuna_unicode_character_size_to_utf32( unicode_character, utf32_stream_size, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED, "%s: unable to determine size of Unicode character in UTF-32.", function ); return( -1 ); } if( unicode_character == 0 ) { break; } } /* Convert the number of characters into bytes */ *utf32_stream_size *= 4; return( 1 ); }
/* Copies an UTF-32 stream from an UTF-32 string * Returns 1 if successful or -1 on error */ int libuna_utf32_stream_copy_from_utf32( uint8_t *utf32_stream, size_t utf32_stream_size, int byte_order, const libuna_utf32_character_t *utf32_string, size_t utf32_string_size, libcerror_error_t **error ) { static char *function = "libuna_utf32_stream_copy_from_utf32"; libuna_unicode_character_t unicode_character = 0; size_t utf32_stream_index = 0; size_t utf32_string_index = 0; if( utf32_stream == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 stream.", function ); return( -1 ); } if( utf32_stream_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-32 stream size value exceeds maximum.", function ); return( -1 ); } if( ( byte_order != LIBUNA_ENDIAN_BIG ) && ( byte_order != LIBUNA_ENDIAN_LITTLE ) ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, "%s: unsupported byte order.", function ); return( -1 ); } if( utf32_string == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 string.", function ); return( -1 ); } if( utf32_string_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-32 string size value exceeds maximum.", function ); return( -1 ); } if( libuna_utf32_stream_copy_byte_order_mark( utf32_stream, utf32_stream_size, &utf32_stream_index, byte_order, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED, "%s: unable to copy UTF-32 byte order mark.", function ); return( -1 ); } while( utf32_string_index < utf32_string_size ) { /* Convert the UTF-32 string bytes into an Unicode character */ if( libuna_unicode_character_copy_from_utf32( &unicode_character, utf32_string, utf32_string_size, &utf32_string_index, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_INPUT_FAILED, "%s: unable to copy Unicode character from UTF-32 string.", function ); return( -1 ); } /* Convert the Unicode character into UTF-32 stream bytes */ if( libuna_unicode_character_copy_to_utf32_stream( unicode_character, utf32_stream, utf32_stream_size, &utf32_stream_index, byte_order, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_CONVERSION, LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED, "%s: unable to copy Unicode character to UTF-32 stream.", function ); return( -1 ); } if( unicode_character == 0 ) { break; } } return( 1 ); }
/* Determines the size of an UTF-7 stream from an UTF-32 string * Returns 1 if successful or -1 on error */ int libuna_utf7_stream_size_from_utf32( const libuna_utf32_character_t *utf32_string, size_t utf32_string_size, size_t *utf7_stream_size, liberror_error_t **error ) { static char *function = "libuna_utf7_stream_size_from_utf32"; size_t utf32_string_iterator = 0; libuna_unicode_character_t unicode_character = 0; uint32_t utf7_stream_base64_data = 0; if( utf32_string == NULL ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-32 string.", function ); return( -1 ); } if( utf32_string_size > (size_t) SSIZE_MAX ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid UTF-32 string size value exceeds maximum.", function ); return( -1 ); } if( utf7_stream_size == NULL ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_ARGUMENTS, LIBERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid UTF-7 stream size.", function ); return( -1 ); } while( utf32_string_iterator < utf32_string_size ) { /* Convert the UTF-32 character bytes into a Unicode character */ if( libuna_unicode_character_copy_from_utf32( &unicode_character, utf32_string, utf32_string_size, &utf32_string_iterator, error ) != 1 ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_CONVERSION, LIBERROR_CONVERSION_ERROR_INPUT_FAILED, "%s: unable to copy Unicode character from UTF-32.", function ); return( -1 ); } /* Determine how many UTF-7 character bytes are required */ if( libuna_unicode_character_size_to_utf7_stream( unicode_character, utf7_stream_size, &utf7_stream_base64_data, error ) != 1 ) { liberror_error_set( error, LIBERROR_ERROR_DOMAIN_CONVERSION, LIBERROR_CONVERSION_ERROR_OUTPUT_FAILED, "%s: unable to determine size of Unicode character in UTF-7.", function ); return( -1 ); } } return( 1 ); }