diff options
Diffstat (limited to 'src/lib/tlslite/utils/codec.py')
-rwxr-xr-x | src/lib/tlslite/utils/codec.py | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/src/lib/tlslite/utils/codec.py b/src/lib/tlslite/utils/codec.py deleted file mode 100755 index 13022a0b9..000000000 --- a/src/lib/tlslite/utils/codec.py +++ /dev/null @@ -1,94 +0,0 @@ -"""Classes for reading/writing binary data (such as TLS records).""" - -from compat import * - -class Writer: - def __init__(self, length=0): - #If length is zero, then this is just a "trial run" to determine length - self.index = 0 - self.bytes = createByteArrayZeros(length) - - def add(self, x, length): - if self.bytes: - newIndex = self.index+length-1 - while newIndex >= self.index: - self.bytes[newIndex] = x & 0xFF - x >>= 8 - newIndex -= 1 - self.index += length - - def addFixSeq(self, seq, length): - if self.bytes: - for e in seq: - self.add(e, length) - else: - self.index += len(seq)*length - - def addVarSeq(self, seq, length, lengthLength): - if self.bytes: - self.add(len(seq)*length, lengthLength) - for e in seq: - self.add(e, length) - else: - self.index += lengthLength + (len(seq)*length) - - -class Parser: - def __init__(self, bytes): - self.bytes = bytes - self.index = 0 - - def get(self, length): - if self.index + length > len(self.bytes): - raise SyntaxError() - x = 0 - for count in range(length): - x <<= 8 - x |= self.bytes[self.index] - self.index += 1 - return x - - def getFixBytes(self, lengthBytes): - bytes = self.bytes[self.index : self.index+lengthBytes] - self.index += lengthBytes - return bytes - - def getVarBytes(self, lengthLength): - lengthBytes = self.get(lengthLength) - return self.getFixBytes(lengthBytes) - - def getFixList(self, length, lengthList): - l = [0] * lengthList - for x in range(lengthList): - l[x] = self.get(length) - return l - - def getVarList(self, length, lengthLength): - lengthList = self.get(lengthLength) - if lengthList % length != 0: - raise SyntaxError() - lengthList = int(lengthList/length) - l = [0] * lengthList - for x in range(lengthList): - l[x] = self.get(length) - return l - - def startLengthCheck(self, lengthLength): - self.lengthCheck = self.get(lengthLength) - self.indexCheck = self.index - - def setLengthCheck(self, length): - self.lengthCheck = length - self.indexCheck = self.index - - def stopLengthCheck(self): - if (self.index - self.indexCheck) != self.lengthCheck: - raise SyntaxError() - - def atLengthCheck(self): - if (self.index - self.indexCheck) < self.lengthCheck: - return False - elif (self.index - self.indexCheck) == self.lengthCheck: - return True - else: - raise SyntaxError()
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