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-rw-r--r--src/common/util.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/common/util.h b/src/common/util.h
index dcb54f0aea..5eecfada28 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -229,6 +229,7 @@ int string_is_C_identifier(const char *string);
int string_is_key_value(int severity, const char *string);
int string_is_valid_hostname(const char *string);
int string_is_valid_ipv4_address(const char *string);
+int string_is_valid_ipv6_address(const char *string);
int tor_mem_is_zero(const char *mem, size_t len);
int tor_digest_is_zero(const char *digest);