GETBOOTFILE(3) BSD Library Functions Manual GETBOOTFILE(3)NAMEgetbootfile — get kernel boot file name
Standard C Library (libc, -lc)
const char *
The getbootfile() function retrieves the full pathname of the file from
which the current kernel was loaded, and returns a static pointer to the
name. A read/write interface to this information is available via the
sysctl(3) MIB variable “kern.bootfile”.
If the call succeeds a string giving the pathname is returned. If it
fails, a null pointer is returned and an error code is placed in the
global location errno.
The getbootfile() function appeared in FreeBSD 2.0.
If the boot blocks have not been modified to pass this information into
the kernel at boot time, the static string “/boot/kernel/kernel” is
returned instead of the real boot file.
BSD September 23, 1994 BSD