OpSys Spring 2006

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+ ., .. and readdir()

Question:

How do I avoid handling . and .. when processing a directory?

Answer:

Each time you read a directory entry (using readdir()) simply compare the name to "." and to "..":

  dp = readdir(dirp);
  if (strcmp(dp->d_name,".")==0) 
    ...

It's best to avoid making assumptions about whether readdir will always give you "." and ".." as the first two entries - this would not be portable code!

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