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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 99bdf6a3..92e536c1 100644
--- a/lib/sockunion.h
+++ b/lib/sockunion.h
@@ -87,7 +87,7 @@ enum connect_result
#define sockunion_family(X) (X)->sa.sa_family
/* Prototypes. */
-int str2sockunion (char *, union sockunion *);
+int str2sockunion (const char *, union sockunion *);
const char *sockunion2str (union sockunion *, char *, size_t);
int sockunion_cmp (union sockunion *, union sockunion *);
int sockunion_same (union sockunion *, union sockunion *);