This file is indexed.

/usr/include/proc/devname.h is in libprocps-dev 2:3.3.12-3ubuntu1.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#ifndef PROC_DEVNAME_H
#define PROC_DEVNAME_H

#include "procps.h"
#include "readproc.h"

EXTERN_C_BEGIN

#define ABBREV_DEV  1     /* remove /dev/         */
#define ABBREV_TTY  2     /* remove tty           */
#define ABBREV_PTS  4     /* remove pts/          */

extern unsigned dev_to_tty(char *__restrict ret, unsigned chop, dev_t dev_t_dev, int pid, unsigned int flags);

extern int tty_to_dev(const char *__restrict const name);

EXTERN_C_END
#endif