networking: Fall back on IPPROTO_RAW when SOL_RAW is not defined
Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/traceroute.c b/networking/traceroute.c
index 8b62474..df71220 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -323,6 +323,14 @@
# define IPPROTO_IP 0
#endif
+/* Some operating systems, like GNU/Hurd, don't define SOL_RAW, but do have
+ * IPPROTO_RAW. Since the IPPROTO definitions are also valid to use for
+ * setsockopt (and take the same value as their corresponding SOL definitions,
+ * if they exist), we can just fall back on IPPROTO_RAW. */
+#ifndef SOL_RAW
+# define SOL_RAW IPPROTO_RAW
+#endif
+
#define OPT_STRING \
"FIlnrdvxt:i:m:p:q:s:w:z:f:" \