2.11BSD/man/cat3/traverse.0

TRAVERSE(3WI)	    UNIX Programmer's Manual	    TRAVERSE(3WI)



NAME
     traverse - recursively traverse a directory

SYNOPSIS
     traverse (path, func)
     char *path;
     int  (*func) ();

     func (path, filetype, position)
     char *path;

DESCRIPTION
     traverse applies its argument function func to its argument
     file pathname path.  If path is a directory, then traverse
     applies func to all its entries.  This traversal is in depth
     first order so that files are processed in the order that
     they are stored in the directory.

     The argument func should take three parameters: a file name,
     a file type, and a position.  The call looks like this for
     directories:
		    (*func) (path, 'd', position);
     and like this for other files:
		    (*func) (path, 'f', position);
     The position is 0 when path is first encountered and 1 when
     traverse is done.	This is used to allow processing before
     and after a directory is processed.

EXAMPLE
     list (name, type, pos)
     char *name;
	  {
	  if (type == 'd')
	       printf ("%s %s\n", pos ? "Leaving" : "Entering", name);
	  else /* type == 'f' */
	       printf (" %s\n", name);
	  }

AUTHOR
     Gary Perlman

BUGS
     There are no diagnostics when directories cannot be
     searched.











Printed 11/26/99	December 16, 1984			1