diff options
Diffstat (limited to 'sysdep/unix')
| -rw-r--r-- | sysdep/unix/io.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c index d1fad1f..dc7146f 100644 --- a/sysdep/unix/io.c +++ b/sysdep/unix/io.c @@ -7,6 +7,10 @@ * Can be freely distributed and used under the terms of the GNU GPL. */ +/* Unfortunately, some glibc versions hide parts of RFC 3542 API + if _GNU_SOURCE is not defined. */ +#define _GNU_SOURCE 1 + #include <stdio.h> #include <stdlib.h> #include <time.h> @@ -668,6 +672,16 @@ get_sockaddr(struct sockaddr_in *sa, ip_addr *a, unsigned *port, int check) #define CMSG_RX_SPACE CMSG_SPACE(sizeof(struct in6_pktinfo)) #define CMSG_TX_SPACE CMSG_SPACE(sizeof(struct in6_pktinfo)) +/* + * RFC 2292 uses IPV6_PKTINFO for both the socket option and the cmsg + * type, RFC 3542 changed the socket option to IPV6_RECVPKTINFO. If we + * don't have IPV6_RECVPKTINFO we suppose the OS implements the older + * RFC and we use IPV6_PKTINFO. + */ +#ifndef IPV6_RECVPKTINFO +#define IPV6_RECVPKTINFO IPV6_PKTINFO +#endif + static char * sysio_register_cmsgs(sock *s) { |