oping(8): Document the new `-f' option.

[liboping.git] / src / liboping.c

diff --git a/src/liboping.c b/src/liboping.c
index 0cff9f4..51071ad 100644 (file)
--- a/src/liboping.c
+++ b/src/liboping.c
@@ -145,7 +145,7 @@ struct pingobj
 /* Even though Posix requires "strerror_r" to return an "int",
  * some systems (e.g. the GNU libc) return a "char *" _and_
  * ignore the second argument ... -tokkee */
-char *sstrerror (int errnum, char *buf, size_t buflen)
+static char *sstrerror (int errnum, char *buf, size_t buflen)
 {
        buf[0] = 0;
 
@@ -1352,6 +1352,7 @@ int ping_host_add (pingobj_t *obj, const char *host)
                        setsockopt (ph->fd, IPPROTO_IP, IP_RECVTTL,
                                        &opt, sizeof (opt));
                }
+#if defined(IPPROTO_IPV6) && defined(IPV6_RECVHOPLIMIT)
                else if (ph->addrfamily == AF_INET6)
                {
                        int opt = 1;
@@ -1359,6 +1360,7 @@ int ping_host_add (pingobj_t *obj, const char *host)
                        setsockopt (ph->fd, IPPROTO_IPV6, IPV6_RECVHOPLIMIT,
                                        &opt, sizeof (opt));
                }
+#endif
 
                break;
        }