Using Buffer

How can I obtain list of current working directory--put them into a buffer, say size 1024 bytes, and then print them out on a temp file one per line?

This is my attempt:

#include <stdio.h>

char buffer[ 1024 ];

if (( "ls - l", buffer, 1024 ) < 0 )

printf( "ls: %s\n", buffer );

The current working directory is the directory you are currently in. Do you mean opbtain a list of the files in the direcotry you are on? If so this is OS dependent. If you are in linux:
man readdir
man opendir
man closedir

If you are in windows go to http://msdn.microsoft.com/ and look for GetFirstFile (I think) and GetNextFile.