NAME

getrtable, setrtable —

get and set the default routing table of the current process

SYNOPSIS

#include <sys/types.h>
#include <sys/socket.h>

int
getrtable(void);

int
setrtable(int rtableid);

DESCRIPTION

getrtable() and setrtable() manipulate the routing table and routing domain associated with the current process.

Only the superuser is allowed to change the process routing table if it is already set to a non-zero value.

RETURN VALUES

getrtable() returns the routing table of the current process. Upon successful completion, setrtable() returns 0 if the call succeeds, -1 if it fails.

ERRORS

The call succeeds unless:

[EINVAL]: The value of the rtableid argument is not a valid routing table.
[EPERM]: The user is not the superuser and the routing table of the calling process is already set to a non-zero value.

HISTORY

The getrtable() and setrtable() system calls appeared in OpenBSD 4.8.