iOS private API detection

class-dump-z ./CLPDemo.app/CLPDemo > CLPDemo.api

Private apis are api which developers are prevented from using. In order to get private apis list for checking, We have to get all apis provided by apple first(api-a). By excluding those public apis declared in the header files, documented apis from .docset, we will get a list of private apis.

1.Get apis lists(api-a) from a framework.(e.g Foundation.framework)
class-dump --arch i386 /path2IosSdks/SDKs/iPhoneSimulator.sdk/System/Library/Frameworks/Foundation.framework/Foundation > Foundations.api
2.Get apis from XXXFramework/*.h(api-b).
2.Get documented apids(api-c)
sqlite3 /path2docset/com.apple.adc.documentation.iOS.docset/Contents/Resources/docSet.dsidx "select ZDECLARATION from ZTOKENMETAINFORMATION" >~/documented.api
ps. Some steps may need further processing before well organized.

There is also some public-repository where all apis are presented.
Refer to: https://github.com/nst/iOS-Runtime-Headers.git.

otool:提取并显示ios下目标文件的相关信息，包括头部，加载命令，各个段，共享库，动态库等等。它拥有大量的命令选项，是一个功能强大的分析工具，当然还可以做反汇编的工具使用。
lipo:是一款创建或处理通用文件的命令行工具.
nm:列出一个函数库文件中的符号表。
class-dump:dump出破解之后的iOS二进制文件的头文件信息。
sqlite3:处理sqlite数据库的命令行工具。