filter rresvport if not present -- @atupone (#18)

flightaware · May 30, 2023 · 72c6c14 · 72c6c14
1 parent 4a4663b
commit 72c6c14
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diff --git a/configure.in b/configure.in
@@ -255,6 +255,7 @@ int main(void) {
     
     AC_CHECK_FUNC(inet_aton, , [AC_DEFINE(NO_INET_ATON)])
     AC_CHECK_FUNC(gethostname, , [AC_DEFINE(NO_GETHOSTNAME)])
+    AC_CHECK_FUNCS([rresvport])
     
     #-------------------------------------------------------------------------
     # Check for additional libraries the Tcl/Tk does not check for.

diff --git a/unix/tclXunixSock.c b/unix/tclXunixSock.c
@@ -193,12 +193,14 @@ TclX_ServerCreateCmd (ClientData clientData,
     /*
      * Allocate a reserved port if requested.
      */
+#ifdef HAVE_RRESVPORT
     if (getReserved) {
         int port;
         if (rresvport (&port) < 0)
             goto unixError;
         local.sin_port = port;
     }
+#endif
 
     /*
      * Open a socket and bind an address and port to it.