NAME
getbootfile —
get kernel boot file name
LIBRARY
library “libc”
SYNOPSIS
#include
<paths.h>
const char *
getbootfile(void);
DESCRIPTION
Thegetbootfile()
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”.
RETURN VALUES
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.
SEE ALSO
HISTORY
The getbootfile() function appeared in
FreeBSD 2.0.
BUGS
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.