68 lines
1.5 KiB
Ruby
68 lines
1.5 KiB
Ruby
# @api private
|
|
module BSD::Capsicum
|
|
module FFI
|
|
require "fiddle"
|
|
include Fiddle::Types
|
|
include Constants
|
|
|
|
module_function
|
|
|
|
##
|
|
# Provides a Ruby interface for cap_enter(2)
|
|
# @return [Integer]
|
|
def cap_enter
|
|
Fiddle::Function.new(
|
|
libc["cap_enter"],
|
|
[],
|
|
INT
|
|
).call
|
|
end
|
|
|
|
##
|
|
# Provides a Ruby interface for cap_getmode(2)
|
|
# @param [Fiddle::Pointer] uintp
|
|
# @return [Integer]
|
|
def cap_getmode(uintp)
|
|
Fiddle::Function.new(
|
|
libc["cap_getmode"],
|
|
[INTPTR_T],
|
|
INT
|
|
).call(uintp)
|
|
end
|
|
|
|
##
|
|
# Provides a Ruby interface for cap_rights_limit(2)
|
|
# @param [Integer] fd
|
|
# @param [Fiddle::Pointer] rights
|
|
# @return [Integer]
|
|
def cap_rights_limit(fd, rights)
|
|
Fiddle::Function.new(
|
|
libc["cap_rights_limit"],
|
|
[INT, VOIDP],
|
|
INT
|
|
).call(fd, rights)
|
|
end
|
|
|
|
##
|
|
# Provides a Ruby interface for cap_rights_init(2)
|
|
# @param [Array<Integer>] rights
|
|
# @return [Fiddle::Pointer]
|
|
def cap_rights_init(*rights)
|
|
voidp = Fiddle::Pointer.malloc(Fiddle::SIZEOF_VOIDP)
|
|
varargs = rights.flat_map { [ULONG_LONG, Symbol === _1 ? Constants.const_get(_1) : _1] }
|
|
Fiddle::Function.new(
|
|
libc["__cap_rights_init"],
|
|
[INT, VOIDP, VARIADIC],
|
|
VOIDP
|
|
).call(CAP_RIGHTS_VERSION, voidp, *varargs)
|
|
voidp
|
|
end
|
|
|
|
##
|
|
# @api private
|
|
def libc
|
|
@libc ||= Fiddle.dlopen Dir["/lib/libc.*"].first
|
|
end
|
|
end
|
|
private_constant :FFI
|
|
end
|