netbase: extend CreateSock() to support creating arbitrary sockets

Allow the callers of `CreateSock()` to pass all 3 arguments to the
`socket(2)` syscall. This makes it possible to create sockets of
any domain/type/protocol.

1 files changed, 6 insertions, 4 deletions

diff --git a/src/netbase.h b/src/netbase.h
index 321c288f67..8ef6c28996 100644
--- a/src/netbase.h
+++ b/src/netbase.h
@@ -262,16 +262,18 @@ CService LookupNumeric(const std::string& name, uint16_t portDefault = 0, DNSLoo
 CSubNet LookupSubNet(const std::string& subnet_str);
 
 /**
- * Create a TCP or UNIX socket in the given address family.
- * @param[in] address_family to use for the socket.
+ * Create a real socket from the operating system.
+ * @param[in] domain Communications domain, first argument to the socket(2) syscall.
+ * @param[in] type Type of the socket, second argument to the socket(2) syscall.
+ * @param[in] protocol The particular protocol to be used with the socket, third argument to the socket(2) syscall.
  * @return pointer to the created Sock object or unique_ptr that owns nothing in case of failure
  */
-std::unique_ptr<Sock> CreateSockOS(sa_family_t address_family);
+std::unique_ptr<Sock> CreateSockOS(int domain, int type, int protocol);
 
 /**
  * Socket factory. Defaults to `CreateSockOS()`, but can be overridden by unit tests.
  */
-extern std::function<std::unique_ptr<Sock>(const sa_family_t&)> CreateSock;
+extern std::function<std::unique_ptr<Sock>(int, int, int)> CreateSock;
 
 /**
  * Create a socket and try to connect to the specified service.