NSFileManager中的错误（实例方法正在遍历符号链接）

Question

I am using copyItemAtPath:toPath:error: for copy operation. From documentation:

Symbolic links are not traversed but are themselves copied

but this method is traversing symbolic link and copying orignal content for Symbolic links created by ln -s (in 10.5).
kMDItemFSFinderFlags is zero for alias created by ln -s .
attributesOfItemAtPath:error: returns NSFileType = NSFileTypeSymbolicLink

From What's the difference between alias and link?

An alias contains two pieces of information: a unique identifier of the file it links to, and the path and file name of the file it links to.

If you rename or move a file, and then create a new file with the path and file name that the file originally had, then any alias that linked to the original file now links to the new file.

However, if you rename or move a file without replacing it, and then invoke an alias, the alias is updated to point to the new path and file name, making use of the unique identifier to do so.

A symbolic link, on the other hand, does not contain a unique identifier to a file, and would appear as broken if the file is renamed or moved and not replaced with a file of the same path and file name.

when i am creating alias using

tell application "Finder"
    make new alias at POSIX file "/Users/test/" to POSIX file "/Applications/Safari.app"
end tell

copyItemAtPath:toPath:error: is working fine and kMDItemFSFinderFlags = 33792 .

attributesOfItemAtPath:error: returns NSFileType = NSFileTypeRegular; 

Can anyone please help me out?

Answer 1

如果确实存在错误，请尝试使用copyfile() （C函数，手册第3节）代替。