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-rw-r--r--lib/sockunion.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sockunion.h b/lib/sockunion.h
index 92e536c1..738df06c 100644
--- a/lib/sockunion.h
+++ b/lib/sockunion.h
@@ -93,7 +93,7 @@ int sockunion_cmp (union sockunion *, union sockunion *);
int sockunion_same (union sockunion *, union sockunion *);
char *sockunion_su2str (union sockunion *su);
-union sockunion *sockunion_str2su (char *str);
+union sockunion *sockunion_str2su (const char *str);
struct in_addr sockunion_get_in_addr (union sockunion *su);
int sockunion_accept (int sock, union sockunion *);
int sockunion_stream_socket (union sockunion *);