Reverse the list of addresses in an IPv6 router header
#include <netinet/in.h>
int inet6_rthdr_reverse(const struct cmsghdr *in,
struct cmsghdr *out);
This function takes a routing header that has been received as ancillary data (pointed to by the first argument, in) and writes a new routing header. The routing header sends datagrams along the reverse of that route. Both arguments are allowed to point to the same buffer (that is, the reversal can occur in place).
Based on:
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |