addr: New find_my_address() to support multiple address families

resolve_my_address() was beyond repair in terms of refactoring. Way too
complex and doing too many things.

This commit implements find_my_address() which in theory does the same as
resolve_my_address() but in a more clean, concise and modern way using the
tor_addr_t interface and for multiple address family.

The caller needs to pass the address family (IPv4 or IPv6) which this
interface supports. For both, a last resolved cache is used as well.

Implements #33233

Signed-off-by: David Goulet <dgoulet@torproject.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/app/config/resolve_addr.h b/src/app/config/resolve_addr.h
index 6c94fe06ba..2cd27d1700 100644
--- a/src/app/config/resolve_addr.h
+++ b/src/app/config/resolve_addr.h
@@ -15,6 +15,10 @@ int resolve_my_address_v4(int warn_severity, const or_options_t *options,
                           uint32_t *addr_out,
                           const char **method_out, char **hostname_out);
 
+bool find_my_address(const or_options_t *options, int family,
+                     int warn_severity, tor_addr_t *addr_out,
+                     const char **method_out, char **hostname_out);
+
 uint32_t get_last_resolved_addr_v4(void);
 void reset_last_resolved_addr_v4(void);