Hi everybody, I tried to write my own TLS extension and ran into problems when trying to define an API for that extension. But let me explain step-by-step:
I use gnutls 2.9.11 and followed http://www.gnu.org/software/gnutls/devel/manual/gnutls.html#TLS-Extension-Handling to add an extension that sends a fix HelloWorld message from client to server and vice versa and prints it (using printf). In order to do so, I modified and added the following files: lib/m4/hooks.m4 lib/gnutls_int.h lib/gnutls_extensions.c lib/ext_helloworld.{h|c} lib/Makefile.am That worked pretty well. My very simple client and server application (they do a standard handshake) print out the HelloWorld as expected. Now, I wanted to add an API to be able to specify the HelloWorld message within the client and server application. In order to do so, I added the following line to lib/includes/gnutls/gnutls.h: int gnutls_helloworld_set_msg(gnutls_session_t session, const char *msg); The function itself is defined in lib/gnutls_helloworld.c. Furthermore I added gnutls_helloworld.c to lib/Makefile.am. Running make and make install does not show any problems but when I try to call gnutls_helloworld_set_msg in my client application, I run into linker problems: undefined reference to `gnutls_helloworld_set_msg' However when I run nm with my GnuTLS library, gnutls_helloworld_set_msg is listed. Does anybody have an idea whats going wrong here? I assume I missed on modification that is needed to export API methods, but I have no idea where.... Any help would be appreciated. Carolin _______________________________________________ Help-gnutls mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gnutls
