| GETBOOTFILE(3) | MidnightBSD Library Functions Manual | GETBOOTFILE(3) |
getbootfile — get
kernel boot file name
Standard C Library (libc, -lc)
#include
<paths.h>
const char *
getbootfile(void);
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.
| September 23, 1994 | midnightbsd-3.1 |