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Hack for 32biy/64bit array in native shared code, needs safeguards

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Ugljesa Jovanovic 2020-10-19 19:10:29 +02:00
parent 065abe1dab
commit 2801fb9484
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GPG Key ID: 178E6DFCECCB0E0F
1 changed files with 4 additions and 4 deletions
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multiplatform-crypto-libsodium-bindings/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/util/LibsodiumUtil.kt
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@ -60,15 +60,15 @@ actual object LibsodiumUtil {
actual fun unpad(paddedData: UByteArray, blocksize: Int) : UByteArray { actual fun unpad(paddedData: UByteArray, blocksize: Int) : UByteArray {
val paddedDataCopy = paddedData.copyOf() val paddedDataCopy = paddedData.copyOf()
val paddedDataCopyPinned = paddedDataCopy.pin() val paddedDataCopyPinned = paddedDataCopy.pin()
var newSize = ULongArray(1) { 0UL } var newSizeULong = ULongArray(1) { 0UL }
val newSizePinned = newSize.pin() val newSizePinned = newSizeULong.pin()
sodium_unpad( sodium_unpad(
newSizePinned.addressOf(0), newSizePinned.addressOf(0) as kotlinx.cinterop.CValuesRef<platform.posix.size_tVar>, // TODO Find a better solution for this!
paddedDataCopyPinned.toPtr(), paddedDataCopyPinned.toPtr(),
paddedData.size.convert(), paddedData.size.convert(),
blocksize.convert() blocksize.convert()
) )
val unpaddedSize = newSize[0] val unpaddedSize = newSizeULong[0]
if (unpaddedSize > Int.MAX_VALUE.toULong()) { if (unpaddedSize > Int.MAX_VALUE.toULong()) {
throw RuntimeException("Unsupported array size (larger than Integer max value) $unpaddedSize") throw RuntimeException("Unsupported array size (larger than Integer max value) $unpaddedSize")
} }