diff options
Diffstat (limited to 'lib/sockunion.c')
| -rw-r--r-- | lib/sockunion.c | 47 |
1 files changed, 35 insertions, 12 deletions
diff --git a/lib/sockunion.c b/lib/sockunion.c index a5382a72..59770529 100644 --- a/lib/sockunion.c +++ b/lib/sockunion.c @@ -297,27 +297,24 @@ sockunion_sizeof (union sockunion *su) } /* return sockunion structure : this function should be revised. */ -static char * -sockunion_log (union sockunion *su) +static const char * +sockunion_log (union sockunion *su, char *buf, size_t len) { - static char buf[SU_ADDRSTRLEN]; - switch (su->sa.sa_family) { case AF_INET: - snprintf (buf, SU_ADDRSTRLEN, "%s", inet_ntoa (su->sin.sin_addr)); - break; + return inet_ntop(AF_INET, &su->sin.sin_addr, buf, len); + #ifdef HAVE_IPV6 case AF_INET6: - snprintf (buf, SU_ADDRSTRLEN, "%s", - inet_ntop (AF_INET6, &(su->sin6.sin6_addr), buf, SU_ADDRSTRLEN)); + return inet_ntop(AF_INET6, &(su->sin6.sin6_addr), buf, len); break; #endif /* HAVE_IPV6 */ + default: - snprintf (buf, SU_ADDRSTRLEN, "af_unknown %d ", su->sa.sa_family); - break; + snprintf (buf, len, "af_unknown %d ", su->sa.sa_family); + return buf; } - return (XSTRDUP (MTYPE_TMP, buf)); } /* sockunion_connect returns @@ -379,8 +376,10 @@ sockunion_connect (int fd, union sockunion *peersu, unsigned short port, { if (errno != EINPROGRESS) { + char str[SU_ADDRSTRLEN]; zlog_info ("can't connect to %s fd %d : %s", - sockunion_log (&su), fd, safe_strerror (errno)); + sockunion_log (&su, str, sizeof str), + fd, safe_strerror (errno)); return connect_error; } } @@ -567,6 +566,30 @@ sockopt_minttl (int family, int sock, int minttl) return -1; } +int +sockopt_v6only (int family, int sock) +{ + int ret, on = 1; + +#ifdef HAVE_IPV6 +#ifdef IPV6_V6ONLY + if (family == AF_INET6) + { + ret = setsockopt (sock, IPPROTO_IPV6, IPV6_V6ONLY, + (void *) &on, sizeof (int)); + if (ret < 0) + { + zlog (NULL, LOG_WARNING, "can't set sockopt IPV6_V6ONLY " + "to socket %d", sock); + return -1; + } + return 0; + } +#endif /* IPV6_V6ONLY */ +#endif /* HAVE_IPV6 */ + return 0; +} + /* If same family and same prefix return 1. */ int sockunion_same (union sockunion *su1, union sockunion *su2) |