本文整理汇总了C++中SecPointer::locateGuest方法的典型用法代码示例。如果您正苦于以下问题：C++ SecPointer::locateGuest方法的具体用法？C++ SecPointer::locateGuest怎么用？C++ SecPointer::locateGuest使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SecPointer的用法示例。
在下文中一共展示了SecPointer::locateGuest方法的1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C++代码示例。
示例1: active
//
// Given a bag of attribute values, automagically come up with a SecCode
// without any other information.
// This is meant to be the "just do what makes sense" generic call, for callers
// who don't want to engage in the fascinating dance of manual guest enumeration.
//
// Note that we expect the logic embedded here to change over time (in backward
// compatible fashion, one hopes), and that it's all right to use heuristics here
// as long as it's done sensibly.
//
// Be warned that the present logic is quite a bit ad-hoc, and will likely not
// handle arbitrary combinations of proxy hosting, dynamic hosting, and dedicated
// hosting all that well.
//
SecCode *SecCode::autoLocateGuest(CFDictionaryRef attributes, SecCSFlags flags)
{
// special case: with no attributes at all, return the root of trust
if (CFDictionaryGetCount(attributes) == 0)
return KernelCode::active()->retain();
// main logic: we need a pid, and we'll take a canonical guest id as an option
int pid = 0;
if (!cfscan(attributes, "{%O=%d}", kSecGuestAttributePid, &pid))
CSError::throwMe(errSecCSUnsupportedGuestAttributes, kSecCFErrorGuestAttributes, attributes);
if (SecCode *process =
KernelCode::active()->locateGuest(attributes)) {
SecPointer<SecCode> code;
code.take(process); // locateGuest gave us a retained object
if (code->staticCode()->flag(kSecCodeSignatureHost)) {
// might be a code host. Let's find out
CFRef<CFMutableDictionaryRef> rest = makeCFMutableDictionary(attributes);
CFDictionaryRemoveValue(rest, kSecGuestAttributePid);
if (SecCode *guest = code->locateGuest(rest))
return guest;
}
if (!CFDictionaryGetValue(attributes, kSecGuestAttributeCanonical)) {
// only "soft" attributes, and no hosting is happening. Return the (non-)host itself
return code.yield();
}
}
MacOSError::throwMe(errSecCSNoSuchCode);
}