Mount device SOURCE on TARGET as a file system TYPE. Optionally, FLAGS may be a bitwise-or of the MS_* <sys/mount.h> constants, and OPTIONS may be a string. When FLAGS contains MS_REMOUNT, SOURCE and TYPE are ignored. When UPDATE-MTAB? is true, update /etc/mtab. Raise a 'system-error' exception on error.

This is a raw clone syscall wrapper that ensures no Guile thread will be spawned during execution of the child. `clone' is called with FLAGS. CHILD is a thunk to run in the child process. PARENT is procedure that accepts the child PID as argument. This is useful in many contexts, such as when calling `unshare' or async-unsafe procedures in the child when the parent process memory (CLONE_VM) or threads (CLONE_THREAD) are shared with it.

Return a number that is the bit-wise or of 'IFF*' flags for network interface NAME.

Flush buffered output of PORT, an output file port, and then call fdatasync(2) on the underlying file descriptor.

Wait and acquire an exclusive lock on FILE. Return an open port according to MODE.

Delete the network route for DESTINATION. For instance, the call:

(delete-network-route sock (make-socket-address AF_INET INADDR_ANY 0))

is equivalent to the 'net-tools' command:

route del -net default

Return the best approximation of the number of rows of the terminal at PORT, trying to guess a reasonable value if all else fails. The result is always a positive integer.

Return the best approximation of the number of columns of the terminal at PORT, trying to guess a reasonable value if all else fails. The result is always a positive integer.

Return the mount flags of MOUNT, a <mount> record, as an inclusive or of MS_* constants.

Create a new unique directory in the file system using the template string TMPL and return its file name. TMPL must end with 'XXXXXX'.

Return the list of entries read from the user accounting database.

Set the CHILD_SUBREAPER capability for the current process.

Turn up the interface NAME.