本文整理汇总了Python中pyasn1.compat.octets.oct2int函数的典型用法代码示例。如果您正苦于以下问题：Python oct2int函数的具体用法？Python oct2int怎么用？Python oct2int使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了oct2int函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun):
substrate = substrate[:length]
if tagSet[0][1] == tag.tagFormatSimple: # XXX what tag to check?
if not substrate:
raise error.PyAsn1Error('Missing initial octet')
trailingBits = oct2int(substrate[0])
if trailingBits > 7:
raise error.PyAsn1Error(
'Trailing bits overflow %s' % trailingBits
)
substrate = substrate[1:]
lsb = p = 0; l = len(substrate)-1; b = ()
while p <= l:
if p == l:
lsb = trailingBits
j = 7
o = oct2int(substrate[p])
while j >= lsb:
b = b + ((o>>j)&0x01,)
j = j - 1
p = p + 1
return self._createComponent(asn1Spec, tagSet, b), ''
r = self._createComponent(asn1Spec, tagSet, ())
if not decodeFun:
return r, substrate
while substrate:
component, substrate = decodeFun(substrate)
r = r + component
return r, substrate示例2: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if not head:
raise error.PyAsn1Error('Empty substrate')
# Get the first subid
subId = oct2int(head[0])
oid = divmod(subId, 40)
index = 1
substrateLen = len(head)
while index < substrateLen:
subId = oct2int(head[index])
index = index + 1
if subId == 128:
# ASN.1 spec forbids leading zeros (0x80) in sub-ID OID
# encoding, tolerating it opens a vulnerability.
# See http://www.cosic.esat.kuleuven.be/publications/article-1432.pdf page 7
raise error.PyAsn1Error('Invalid leading 0x80 in sub-OID')
elif subId > 128:
# Construct subid from a number of octets
nextSubId = subId
subId = 0
while nextSubId >= 128:
subId = (subId << 7) + (nextSubId & 0x7F)
if index >= substrateLen:
raise error.SubstrateUnderrunError(
'Short substrate for sub-OID past %s' % (oid,)
)
nextSubId = oct2int(head[index])
index = index + 1
subId = (subId << 7) + nextSubId
oid = oid + (subId,)
return self._createComponent(asn1Spec, tagSet, oid), tail示例3: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if tagSet[0][1] == tag.tagFormatSimple: # XXX what tag to check?
if not head:
raise error.PyAsn1Error('Empty substrate')
trailingBits = oct2int(head[0])
if trailingBits > 7:
raise error.PyAsn1Error(
'Trailing bits overflow %s' % trailingBits
)
head = head[1:]
lsb = p = 0; l = len(head)-1; b = []
while p <= l:
if p == l:
lsb = trailingBits
j = 7
o = oct2int(head[p])
while j >= lsb:
b.append((o>>j)&0x01)
j -= 1
p += 1
return self._createComponent(asn1Spec, tagSet, b), tail
r = self._createComponent(asn1Spec, tagSet, ())
if substrateFun:
return substrateFun(r, substrate, length)
while head:
component, head = decodeFun(head, self.protoComponent)
r = r + component
return r, tail示例4: __asSocketAddress
def __asSocketAddress(self):
if not hasattr(self, '__tuple_value'):
v = self.asOctets()
self.__tuple_value = (
inet_ntop(AF_INET, v[:4]),
oct2int(v[4]) << 8 | oct2int(v[5])
)
return self.__tuple_value示例5: __getitem__
def __getitem__(self, i):
if not hasattr(self, '__tuple_value'):
v = self.asOctets()
self.__tuple_value = (
inet_ntop(AF_INET, v[:4]),
oct2int(v[4]) << 8 | oct2int(v[5])
)
return self.__tuple_value[i]示例6: __getitem__
def __getitem__(self, i):
if not hasattr(self, '__tuple_value'):
if AF_INET6 is None:
raise error.PySnmpError('IPv6 not supported by platform')
v = self.asOctets()
self.__tuple_value = (
inet_ntop(AF_INET6, v[:16]),
oct2int(v[16]) << 8 | oct2int(v[17]),
0,
0)
return self.__tuple_value[i]示例7: __getitem__
def __getitem__(self, i):
if not hasattr(self, '__tuple_value'):
if not has_ipv6:
raise error.PySnmpError('IPv6 not supported by platform')
v = self.asOctets()
self.__tuple_value = (
inet_ntop(socket.AF_INET6, v[:16]),
oct2int(v[16]) << 8 | oct2int(v[17]),
0, # flowinfo
0) # scopeid
return self.__tuple_value[i]示例8: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet,
length, state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if not head:
raise error.SubstrateUnderrunError('Short substrate for Real')
fo = oct2int(head[0]); head = head[1:]
if fo & 0x40: # infinite value
value = fo & 0x01 and '-inf' or 'inf'
elif fo & 0x80: # binary enoding
n = (fo & 0x03) + 1
if n == 4:
n = oct2int(head[0])
eo, head = head[:n], head[n:]
if not eo or not head:
raise error.PyAsn1Error('Real exponent screwed')
e = oct2int(eo[0]) & 0x80 and -1 or 0
while eo: # exponent
e <<= 8
e |= oct2int(eo[0])
eo = eo[1:]
p = 0
while head: # value
p <<= 8
p |= oct2int(head[0])
head = head[1:]
if fo & 0x40: # sign bit
p = -p
value = (p, 2, e)
elif fo & 0xc0 == 0: # character encoding
try:
if fo & 0x3 == 0x1: # NR1
value = (int(head), 10, 0)
elif fo & 0x3 == 0x2: # NR2
value = float(head)
elif fo & 0x3 == 0x3: # NR3
value = float(head)
else:
raise error.SubstrateUnderrunError(
'Unknown NR (tag %s)' % fo
)
except ValueError:
raise error.SubstrateUnderrunError(
'Bad character Real syntax'
)
elif fo & 0xc0 == 0x40: # special real value
pass
else:
raise error.SubstrateUnderrunError(
'Unknown encoding (tag %s)' % fo
)
return self._createComponent(asn1Spec, tagSet, value), tail示例9: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun):
substrate = substrate[:length]
if not substrate:
raise error.PyAsn1Error('Empty substrate')
if substrate in self.precomputedValues:
value = self.precomputedValues[substrate]
else:
firstOctet = oct2int(substrate[0])
if firstOctet & 0x80:
value = -1
else:
value = 0
for octet in substrate:
value = value << 8 | oct2int(octet)
return self._createComponent(asn1Spec, tagSet, value), substrate示例10: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if tagSet[0].tagFormat == tag.tagFormatSimple: # XXX what tag to check?
if not head:
raise error.PyAsn1Error('Empty substrate')
trailingBits = oct2int(head[0])
if trailingBits > 7:
raise error.PyAsn1Error(
'Trailing bits overflow %s' % trailingBits
)
head = head[1:]
value = self.protoComponent.fromOctetString(head, trailingBits)
return self._createComponent(asn1Spec, tagSet, value), tail
if not self.supportConstructedForm:
raise error.PyAsn1Error('Constructed encoding form prohibited at %s' % self.__class__.__name__)
bitString = self._createComponent(asn1Spec, tagSet)
if substrateFun:
return substrateFun(bitString, substrate, length)
while head:
component, head = decodeFun(head, self.protoComponent)
bitString += component
return bitString, tail示例11: from_bytes
def from_bytes(octets, signed=False):
value = long(b2a_hex(str(octets)), 16)
if signed and oct2int(octets[0]) & 0x80:
return value - (1 << len(octets) * 8)
return value示例12: from_bytes
def from_bytes(octets, signed=False):
if not octets:
return 0
value = long(b2a_hex(ensureString(octets)), 16)
if signed and oct2int(octets[0]) & 0x80:
return value - (1 << len(octets) * 8)
return value示例13: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun):
substrate = substrate[:length]
if not substrate:
raise error.PyAsn1Error('Empty substrate')
byte = oct2int(substrate[0])
if byte == 0xff:
value = 1
elif byte == 0x00:
value = 0
else:
raise error.PyAsn1Error('Boolean CER violation: %s' % byte)
return self._createComponent(asn1Spec, tagSet, value), substrate[1:]示例14: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length,
state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if tagSet[0][1] == tag.tagFormatSimple: # XXX what tag to check?
if not head:
raise error.PyAsn1Error('Empty substrate')
trailingBits = oct2int(head[0])
if trailingBits > 7:
raise error.PyAsn1Error(
'Trailing bits overflow %s' % trailingBits
)
head = head[1:]
if BITPATTERN:
# Use faster method with lookup table
p = 0; l = len(head)-1; b = []
while p < l:
b.extend(BITPATTERN[oct2int(head[p])])
p += 1
b.extend(BITPATTERN[oct2int(head[p])][0:8-trailingBits])
else:
# Use original, slower method
lsb = p = 0; l = len(head)-1; b = ()
while p <= l:
if p == l:
lsb = trailingBits
j = 7
o = oct2int(head[p])
while j >= lsb:
b = b + ((o>>j)&0x01,)
j = j - 1
p = p + 1
return self._createComponent(asn1Spec, tagSet, b), tail
r = self._createComponent(asn1Spec, tagSet, ())
if substrateFun:
return substrateFun(r, substrate, length)
while head:
component, head = decodeFun(head)
r = r + component
return r, tail示例15: valueDecoder
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet, length, state, decodeFun, substrateFun):
head, tail = substrate[:length], substrate[length:]
if not head or length != 1:
raise error.PyAsn1Error("Not single-octet Boolean payload")
byte = oct2int(head[0])
# CER/DER specifies encoding of TRUE as 0xFF and FALSE as 0x0, while
# BER allows any non-zero value as TRUE; cf. sections 8.2.2. and 11.1
# in http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
if byte == 0xFF:
value = 1
elif byte == 0x00:
value = 0
else:
raise error.PyAsn1Error("Unexpected Boolean payload: %s" % byte)
return self._createComponent(asn1Spec, tagSet, value), tail