Thread: Recursion help needed

Hi,

First off I am a complete novice at c programming. I have been trying to modify to this piece of code to add recursion and use opendir and readdir instead of scandir:

Code:

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Code:

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The 2 pieces of code are from 2 different programs which do the same thing. So basically I am trying to merge the top piece of code into the same type of format of the second piece, but I
am stuck on how to do this.

Any help would be greatly appreciated.

In order to make it recursive, there has to be a function somewhere but i don't see the function head.

Thanks for your reply


Ok. As I mentioned I am a complete novice, so I'll paste the full programs in.


This is the program I have written (poorly):

Code:

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This is the one I would prefer to use but there is no recursion. Also I am required to use at least the following system calls, opendir, chdir, readdir, and stat.:

Code:

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How can I modify the second one to make it recursive and using the required system calls?

Consider using attachments for so big files of code. It would make it easier for most people to study it. I believe that you must isolate from the code, the part that does the recursive descent in the directory structure. Also how would the printing take place is important. Consider reading this: Tree traversal.
I would probably do it like:

Code:

Pseudocode:
SUB print_dir(String rootDir)
BEGIN
    STATISTICS(rootDir)
    IF (isDirectory(rootDir))
    BEGIN
        files = readFilesOf(rootDir);
        FOREACH file IN files DO
        BEGIN
            print_dir(file)
        END
    END
END

However that method might not yield the results you would like.