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-rw-r--r--networking/traceroute.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/networking/traceroute.c b/networking/traceroute.c
index 6dcbc2faa..a027b928a 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -709,6 +709,9 @@ packet_ok(int read_len, len_and_sockaddr *from_lsa,
# if ENABLE_FEATURE_TRACEROUTE_VERBOSE
if (verbose) {
+# ifndef MAXHOSTNAMELEN
+# define MAXHOSTNAMELEN 80
+# endif
unsigned char *p;
char pa1[MAXHOSTNAMELEN];
char pa2[MAXHOSTNAMELEN];