syscall - execute an arbitrary system call


syscall LIST


Calls the system call specified as the first element of the list, passing the remaining elements as arguments to the system call. If unimplemented, produces a fatal error. The arguments are interpreted as follows: if a given argument is numeric, the argument is passed as an int. If not, the pointer to the string value is passed. You are responsible to make sure a string is pre-extended long enough to receive any result that might be written into a string. If your integer arguments are not literals and have never been interpreted in a numeric context, you may need to add 0 to them to force them to look like numbers.

require ''; # may need to run h2ph syscall(&SYS_write, fileno(STDOUT), "hi there\n", 9);

Note that Perl only supports passing of up to 14 arguments to your system call, which in practice should usually suffice.