C/C++ functions similar to BASH's "cp", "mv", "mkdir", etc?

kornerr · 04-22-2006, 11:35 PM

I need to "mkdir" and "cp" from within an app. And this app must be cross-platform, that's why system ("mkdir ..."); doesn't suit me.
Any suggestion?

Thanks.

PS: The app is built upon wxWidgets lib.

ataraxia · 04-23-2006, 12:23 AM

There is a "mkdir" system call:

Code:

#include <sys/stat.h>
#include <sys/types.h>

int mkdir(const char *pathname, mode_t mode);

For "cp" you will probably have to open the source file ("fopen"), create the destination file ("creat"), and copy the file contents ("fread" and "fwrite").

kornerr · 04-23-2006, 12:31 AM

Thanks, ataraxia.

I also need a "mv" function

Thanks.

ataraxia · 04-23-2006, 12:35 AM

Quote:

Originally Posted by kornerr

I also need a "mv" function

Just do the "cp" stuff and then "unlink" the old file:

Code:

#include <unistd.h>

int unlink(const char *pathname);

addy86 · 04-23-2006, 01:07 AM

Quote:

Originally Posted by ataraxia

Just do the "cp" stuff and then "unlink" the old file:

Better use rename(2).

kornerr · 04-23-2006, 05:05 AM

Thanks, ataraxia, addy86.
The last thing I need is "rmdir". Does unlink suit me?

Thanks.

addy86 · 04-23-2006, 05:40 AM

No. Don't call unlink() on directories; use rmdir(2) instead. Better yet, use remove(3).

kornerr · 04-23-2006, 05:42 AM

Thanks, addy86.

kornerr · 04-23-2006, 07:41 AM

Well, "remove" calls "rmdir" when removing dirs. But "rmdir" removes dirs only when they're empty.
Is there a way to delete a dir with all the files it contains?

Thanks.

addy86 · 04-23-2006, 08:49 AM

You have to recursively delete the directory: delete any files you find in them; when you find a directory, recursively delete it, and so on.
http://www.cs.cf.ac.uk/Dave/C/node20.html

kornerr · 04-23-2006, 09:48 AM

Thanks, addy86.