V9/include/ftw.h

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/*
 *	Codes for the third argument to the user-supplied function
 *	which is passed as the second argument to ftw
 */

#define	FTW_F	0	/* file */
#define	FTW_D	1	/* directory */
#define	FTW_DNR	2	/* directory without read permission */
#define	FTW_NS	3	/* unknown type, stat failed */
#define FTW_DP	4	/* directory, postorder visit */
#define FTW_SL  5	/* symbolic link */
#define FTW_SKD 1	/* skip this directory (2nd par = FTW_D) */
#define FTW_SKR 2	/* skip rest of current directory */
#define FTW_FOLLOW 3	/* follow symbolic link */

struct FTW { int quit, base, level;
#ifndef FTW_more_to_come
	};
#endif