DEVNAME(3) |
Library Functions Manual |
DEVNAME(3) |
NAME
devname — get device name
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
#include <sys/stat.h>
char *
devname(dev_t dev, mode_t type);
DESCRIPTION
The
devname() function returns a pointer to the name of the block or character device in “
/dev” with a device number of
dev, and a file type matching the one encoded in
type which must be one of S_IFBLK or S_IFCHR. If no device matches the specified values, or no information is available,
NULL is returned.
The traditional display for applications when no device is found is the string “??”.
FILES
-
/var/run/dev.cdb
-
Device database file.
HISTORY
The devname function call appeared in 4.4BSD.