tst_inet6_rth_reverse - Take a Routing header extension header and writes a new Routing header
To check that inet6_rth_reverse() can be used to take a Routing header extension header and writes a new Routing header.
./tst_inet6_rth_reverse [-tooloption ...] -tooloption : v6api tool option
1. Initializes the buffer with segments set to zero 2. Add the IPv6 address the end of the Routing header 3. Add the IPv6 address the end of the Routing header 4. Reverse order of the addresses 5. Check A: the addresses is reversed, the segleft member is set correctly
None
RFC 3542
7.4. inet6_rth_reverse
int inet6_rth_reverse(const void *in, void *out);
This function takes a Routing header extension header (pointed to by the first argument) and writes a new Routing header that sends datagrams along the reverse of that route. The function reverses the order of the addresses and sets the segleft member in the new Routing header to the number of segments. Both arguments are allowed to point to the same buffer (that is, the reversal can occur in place).
The return value of the function is 0 on success, or -1 upon an error.