devname -- get device name
Standard C Library (libc, -lc)
devname(dev_t dev, mode_t type);
devname_r(dev_t dev, mode_t type, char *buf, int len);
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.
To find the right name, devname() asks the kernel via the kern.devname
sysctl. If it is unable to come up with a suitable name, it will format
the information encapsulated in dev and type in a human-readable format.
devname() returns the name stored in a static buffer which will be overwritten
on subsequent calls. devname_r() takes a buffer and length as
argument to avoid this problem.
The devname() function appeared in 4.4BSD.
FreeBSD 5.2.1 July 18, 1999 FreeBSD 5.2.1 [ Back ]