Use a custom init function for samba4 that sets a samba4

specific debug function.
By default do not debug, this is the most appropriate action for a library
as we cannot assume what stderr is use for in the main app.
The main app is responsible to set ev_debug_stderr if they so desire.
(This used to be commit e566a2f308)

source4/client/cifsdd.c

@@ -581,7 +581,7 @@ int main(int argc, const char ** argv)
 		}
 	}
 
-	ev = event_context_init(talloc_autofree_context());
+	ev = s4_event_context_init(talloc_autofree_context());
 
 	gensec_init(cmdline_lp_ctx);
 	dump_args();

source4/client/client.c

@@ -3228,7 +3228,7 @@ static int do_message_op(const char *netbios_name, const char *desthost,
 
 	lp_smbcli_options(cmdline_lp_ctx, &smb_options);
 
-	ev_ctx = event_context_init(talloc_autofree_context());
+	ev_ctx = s4_event_context_init(talloc_autofree_context());
 
 	DEBUG( 3, ( "Client started (version %s).\n", SAMBA_VERSION_STRING ) );
 

source4/cluster/ctdb/ib/ibwrapper_test.c

@@ -604,7 +604,7 @@ int main(int argc, char *argv[])
 		goto cleanup;
 	}
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 	assert(ev);
 
 	tcx->ibwctx = ibw_init(tcx->attrs, tcx->nattrs,

source4/cluster/ctdb/server/ctdb_daemon.c

@@ -650,7 +650,7 @@ int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork)
 	domain_socket_name = talloc_strdup(talloc_autofree_context(), ctdb->daemon.name);
 	talloc_set_destructor(domain_socket_name, unlink_destructor);	
 
-	ctdb->ev = event_context_init(NULL);
+	ctdb->ev = s4_event_context_init(NULL);
 
 	/* start frozen, then let the first election sort things out */
 	if (!ctdb_blocking_freeze(ctdb)) {

source4/cluster/ctdb/server/ctdb_recoverd.c

@@ -1487,7 +1487,7 @@ int ctdb_start_recoverd(struct ctdb_context *ctdb)
 
 	/* get a new event context */
 	talloc_free(ctdb->ev);
-	ctdb->ev = event_context_init(ctdb);
+	ctdb->ev = s4_event_context_init(ctdb);
 
 	event_add_fd(ctdb->ev, ctdb, fd[0], EVENT_FD_READ|EVENT_FD_AUTOCLOSE, 
 		     ctdb_recoverd_parent, &fd[0]);	

source4/cluster/ctdb/server/ctdbd.c

@@ -141,7 +141,7 @@ int main(int argc, const char *argv[])
 
 	block_signal(SIGPIPE);
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 
 	ctdb = ctdb_cmdline_init(ev);
 

source4/cluster/ctdb/tests/ctdb_bench.c

@@ -192,7 +192,7 @@ int main(int argc, const char *argv[])
 		while (extra_argv[extra_argc]) extra_argc++;
 	}
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 
 	/* initialise ctdb */
 	ctdb = ctdb_cmdline_client(ev);

source4/cluster/ctdb/tests/ctdb_fetch.c

@@ -211,7 +211,7 @@ int main(int argc, const char *argv[])
 		while (extra_argv[extra_argc]) extra_argc++;
 	}
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 
 	ctdb = ctdb_cmdline_client(ev);
 

source4/cluster/ctdb/tests/ctdb_store.c

@@ -131,7 +131,7 @@ int main(int argc, const char *argv[])
 		while (extra_argv[extra_argc]) extra_argc++;
 	}
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 
 	ctdb = ctdb_cmdline_client(ev);
 

source4/cluster/ctdb/tools/ctdb.c

@@ -977,7 +977,7 @@ int main(int argc, const char *argv[])
 
 	control = extra_argv[0];
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 
 	/* initialise ctdb */
 	ctdb = ctdb_cmdline_client(ev);

source4/dsdb/samdb/samdb.c

@@ -121,7 +121,7 @@ int samdb_copy_template(struct ldb_context *ldb,
 		/* FIXME: need to remove this wehn we finally pass the event
 		 * context around in ldb */
 		if (event_ctx == NULL) {
-			event_ctx = event_context_init(templates_ldb);
+			event_ctx = s4_event_context_init(templates_ldb);
 		}
 
 		templates_ldb = ldb_wrap_connect(ldb, event_ctx, lp_ctx, 

source4/lib/events/events.h

@@ -43,7 +43,6 @@ typedef void (*event_aio_handler_t)(struct event_context *, struct aio_event *,
 				    int, void *);
 
 #ifdef _SAMBA_BUILD_
-struct event_context *s4_event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name);
 struct event_context *s4_event_context_init(TALLOC_CTX *mem_ctx);
 #endif
 

source4/lib/events/events_debug.c

@@ -43,9 +43,9 @@ int ev_set_debug(struct event_context *ev,
 /*
   debug function for ev_set_debug_stderr
 */
-static void ev_debug_stderr(void *context, enum ev_debug_level level,
+void ev_debug_stderr(void *context, enum ev_debug_level level,
 			    const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
-static void ev_debug_stderr(void *context, enum ev_debug_level level,
+void ev_debug_stderr(void *context, enum ev_debug_level level,
 			    const char *fmt, va_list ap)
 {
 	if (level <= EV_DEBUG_WARNING) {
@@ -63,13 +63,18 @@ int ev_set_debug_stderr(struct event_context *ev)
 }
 
 /*
-  log a message
+ * log a message
+ *
+ * The default debug action is to ignore debugging messages.
+ * This is the most appropriate action for a library.
+ * Applications using the library must decide where to
+ * redirect debugging messages
 */
 void ev_debug(struct event_context *ev, enum ev_debug_level level, const char *fmt, ...)
 {
 	va_list ap;
 	if (ev->debug_ops.debug == NULL) {
-		ev_set_debug_stderr(ev);
+		return;
 	}
 	va_start(ap, fmt);
 	ev->debug_ops.debug(ev->debug_ops.context, level, fmt, ap);

source4/lib/events/events_s4.c

@@ -55,3 +55,54 @@ NTSTATUS s4_events_aio_init(void)
        return NT_STATUS_OK;
 }
 #endif
+
+/*
+  this is used to catch debug messages from events
+*/
+static void ev_wrap_debug(void *context, enum ev_debug_level level,
+			  const char *fmt, va_list ap)  PRINTF_ATTRIBUTE(3,0);
+
+static void ev_wrap_debug(void *context, enum ev_debug_level level,
+			  const char *fmt, va_list ap)
+{
+	int samba_level = -1;
+	char *s = NULL;
+	switch (level) {
+	case EV_DEBUG_FATAL:
+		samba_level = 0;
+		break;
+	case EV_DEBUG_ERROR:
+		samba_level = 1;
+		break;
+	case EV_DEBUG_WARNING:
+		samba_level = 2;
+		break;
+	case EV_DEBUG_TRACE:
+		samba_level = 5;
+		break;
+
+	};
+	vasprintf(&s, fmt, ap);
+	if (!s) return;
+	DEBUG(samba_level, ("events: %s\n", s));
+	free(s);
+}
+
+/*
+  create a event_context structure. This must be the first events
+  call, and all subsequent calls pass this event_context as the first
+  element. Event handlers also receive this as their first argument.
+
+  This samba4 specific call sets the samba4 debug handler.
+*/
+struct event_context *s4_event_context_init(TALLOC_CTX *mem_ctx)
+{
+	struct event_context *ev;
+
+	ev = event_context_init_byname(mem_ctx, NULL);
+	if (ev) {
+		ev_set_debug(ev, ev_wrap_debug, NULL);
+	}
+	return ev;
+}
+

source4/lib/ldb/ldb_ildap/ldb_ildap.c

@@ -758,12 +758,12 @@ static int ildb_connect(struct ldb_context *ldb, const char *url,
 	module->private_data	= ildb;
 	ildb->module		= module;
 
-	event_ctx = ldb_get_opaque(ldb, "EventContext");
+	event_ctx = ldb_get_event_context(ldb);
 
 	/* FIXME: We must make the event context an explicit parameter, but we
 	 * need to build the events library separately first. Hack a new event
-	 * context so that CMD line utilities work until we have libevents for
+	 * context so that CMD line utilities work until we have them all
-	 * standalone builds ready */
+	 * converted */
 	if (event_ctx == NULL) {
 		event_ctx = event_context_init(NULL);
 	}

source4/lib/messaging/pymessaging.c

@@ -76,7 +76,7 @@ PyObject *py_messaging_connect(PyTypeObject *self, PyObject *args, PyObject *kwa
 
 	ret->mem_ctx = talloc_new(NULL);
 
-	ev = event_context_init(ret->mem_ctx);
+	ev = s4_event_context_init(ret->mem_ctx);
 
 	if (messaging_path == NULL) {
 		messaging_path = lp_messaging_path(ret, global_loadparm);
@@ -330,7 +330,7 @@ PyObject *py_irpc_connect(PyTypeObject *self, PyObject *args, PyObject *kwargs)
 
 	ret->server_name = server;
 
-	ev = event_context_init(ret->mem_ctx);
+	ev = s4_event_context_init(ret->mem_ctx);
 
 	if (messaging_path == NULL) {
 		messaging_path = lp_messaging_path(ret, global_loadparm);

source4/lib/registry/registry_wrap.c

@@ -3486,7 +3486,7 @@ SWIGINTERN PyObject *_wrap_hive_key(PyObject *SWIGUNUSEDPARM(self), PyObject *ar
   
   arg3 = NULL;
   arg4 = NULL;
-  arg5 = event_context_init(NULL);
+  arg5 = s4_event_context_init(NULL);
   arg6 = loadparm_init(NULL);
   arg1 = NULL;
   arg7 = &tmp7;
@@ -3574,7 +3574,7 @@ SWIGINTERN PyObject *_wrap_open_ldb(PyObject *SWIGUNUSEDPARM(self), PyObject *ar
   
   arg3 = NULL;
   arg4 = NULL;
-  arg5 = event_context_init(NULL);
+  arg5 = s4_event_context_init(NULL);
   arg6 = loadparm_init(NULL);
   arg1 = NULL;
   arg7 = &tmp7;
@@ -3735,7 +3735,7 @@ SWIGINTERN PyObject *_wrap_open_samba(PyObject *SWIGUNUSEDPARM(self), PyObject *
     (char *) "ev_ctx",(char *) "lp_ctx",(char *) "session_info",(char *) "credentials", NULL 
   };
   
-  arg3 = event_context_init(NULL);
+  arg3 = s4_event_context_init(NULL);
   arg4 = loadparm_init(NULL);
   arg5 = NULL;
   arg6 = NULL;

source4/lib/registry/tools/regdiff.c

@@ -118,7 +118,7 @@ int main(int argc, const char **argv)
 
 	}
 
-	ev_ctx = event_context_init(NULL);
+	ev_ctx = s4_event_context_init(NULL);
 
 	h1 = open_backend(pc, ev_ctx, cmdline_lp_ctx, backend1, remote1);
 	if (h1 == NULL)

source4/lib/registry/tools/regpatch.c

@@ -49,7 +49,7 @@ int main(int argc, char **argv)
 	while((opt = poptGetNextOpt(pc)) != -1) {
 	}
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 
 	if (remote) {
 		h = reg_common_open_remote (remote, cmdline_lp_ctx, cmdline_credentials);

source4/lib/registry/tools/regshell.c

@@ -517,7 +517,7 @@ int main(int argc, char **argv)
 
 	ctx = talloc_zero(NULL, struct regshell_context);
 
-	ev_ctx = event_context_init(ctx);
+	ev_ctx = s4_event_context_init(ctx);
 
 	if (remote != NULL) {
 		ctx->registry = reg_common_open_remote(remote, cmdline_lp_ctx, 

source4/lib/registry/tools/regtree.c

@@ -129,7 +129,7 @@ int main(int argc, char **argv)
 	while((opt = poptGetNextOpt(pc)) != -1) {
 	}
 
-	ev_ctx = event_context_init(NULL);
+	ev_ctx = s4_event_context_init(NULL);
 
 	if (remote != NULL) {
 		h = reg_common_open_remote(remote, cmdline_lp_ctx, cmdline_credentials);

source4/libcli/nbt/pynbt.c

@@ -47,7 +47,7 @@ static PyObject *py_nbt_node_init(PyObject *self, PyObject *args, PyObject *kwar
 	if (ret->mem_ctx == NULL)
 		return NULL;
 
-	ev = event_context_init(ret->mem_ctx);
+	ev = s4_event_context_init(ret->mem_ctx);
 	ret->socket = nbt_name_socket_init(ret->mem_ctx, ev, lp_iconv_convenience(global_loadparm)); 
 	return (PyObject *)ret;
 }

source4/libcli/swig/libcli_smb_wrap.c

@@ -2621,7 +2621,7 @@ SWIGINTERN PyObject *_wrap_smbcli_sock_connect_byname(PyObject *SWIGUNUSEDPARM(s
     (char *) "host",(char *) "ports",(char *) "resolve_ctx",(char *) "event_ctx", NULL 
   };
   
-  arg5 = event_context_init(NULL);
+  arg5 = s4_event_context_init(NULL);
   arg3 = NULL;
   if (!PyArg_ParseTupleAndKeywords(args,kwargs,(char *)"OOO|O:smbcli_sock_connect_byname",kwnames,&obj0,&obj1,&obj2,&obj3)) SWIG_fail;
   res1 = SWIG_AsCharPtrAndSize(obj0, &buf1, NULL, &alloc1);

source4/libnet/py_net.c

@@ -47,7 +47,7 @@ static PyObject *py_net_join(PyObject *cls, PyObject *args, PyObject *kwargs)
 
 	/* FIXME: we really need to get a context from the caller or we may end
 	 * up with 2 event contexts */
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 	mem_ctx = talloc_new(ev);
 
 	libnet_ctx = py_net_ctx(cls, ev);

source4/librpc/rpc/pyrpc.c

@@ -336,7 +336,7 @@ static PyObject *dcerpc_interface_new(PyTypeObject *self, PyObject *args, PyObje
 	}
 	ret = PyObject_New(dcerpc_InterfaceObject, &dcerpc_InterfaceType);
 
-	event_ctx = event_context_init(mem_ctx);
+	event_ctx = s4_event_context_init(mem_ctx);
 
 	/* Create a dummy interface table struct. TODO: In the future, we should rather just allow 
 	 * connecting without requiring an interface table.

source4/smbd/process_prefork.c

@@ -115,7 +115,7 @@ static void prefork_new_task(struct event_context *ev,
 	pid = getpid();
 
 	/* This is now the child code. We need a completely new event_context to work with */
-	ev2 = event_context_init(NULL);
+	ev2 = s4_event_context_init(NULL);
 
 	/* the service has given us a private pointer that
 	   encapsulates the context it needs for this new connection -
@@ -173,7 +173,7 @@ static void prefork_new_task(struct event_context *ev,
 	talloc_free(ev2);
 	
 	/* But we need a events system to handle reaping children */
-	ev_parent = event_context_init(NULL);
+	ev_parent = s4_event_context_init(NULL);
 	
 	/* TODO: Handle some events... */
 	

source4/smbd/process_standard.c

@@ -92,7 +92,7 @@ static void standard_accept_connection(struct event_context *ev,
 	pid = getpid();
 
 	/* This is now the child code. We need a completely new event_context to work with */
-	ev2 = event_context_init(NULL);
+	ev2 = s4_event_context_init(NULL);
 
 	/* the service has given us a private pointer that
 	   encapsulates the context it needs for this new connection -
@@ -161,7 +161,7 @@ static void standard_new_task(struct event_context *ev,
 	pid = getpid();
 
 	/* This is now the child code. We need a completely new event_context to work with */
-	ev2 = event_context_init(NULL);
+	ev2 = s4_event_context_init(NULL);
 
 	/* the service has given us a private pointer that
 	   encapsulates the context it needs for this new connection -

source4/smbd/process_thread.c

@@ -77,7 +77,7 @@ static void thread_accept_connection(struct event_context *ev,
 	struct new_conn_state *state;
 	struct event_context *ev2;
 
-	ev2 = event_context_init(ev);
+	ev2 = s4_event_context_init(ev);
 	if (ev2 == NULL) return;
 
 	state = talloc(ev2, struct new_conn_state);
@@ -160,7 +160,7 @@ static void thread_new_task(struct event_context *ev,
 	struct new_task_state *state;
 	struct event_context *ev2;
 
-	ev2 = event_context_init(ev);
+	ev2 = s4_event_context_init(ev);
 	if (ev2 == NULL) return;
 
 	state = talloc(ev2, struct new_task_state);

source4/smbd/server.c

@@ -313,7 +313,7 @@ static int binary_smbd_main(const char *binary_name, int argc, const char *argv[
 	
 	/* the event context is the top level structure in smbd. Everything else
 	   should hang off that */
-	event_ctx = event_context_init(talloc_autofree_context());
+	event_ctx = s4_event_context_init(talloc_autofree_context());
 
 	if (event_ctx == NULL) {
 		DEBUG(0,("Initializing event context failed\n"));

source4/torture/gentest.c

@@ -3219,7 +3219,7 @@ static bool split_unc_name(const char *unc, char **server, char **share)
 
 	printf("seed=%u\n", options.seed);
 
-	ev = event_context_init(talloc_autofree_context());
+	ev = s4_event_context_init(talloc_autofree_context());
 
 	gensec_init(lp_ctx);
 

source4/torture/locktest.c

@@ -637,7 +637,7 @@ static void usage(poptContext pc)
 		servers[1] = servers[0];
 	}
 
-	ev = event_context_init(talloc_autofree_context());
+	ev = s4_event_context_init(talloc_autofree_context());
 
 	gensec_init(lp_ctx);
 

source4/torture/locktest2.c

@@ -550,7 +550,7 @@ static void usage(void)
 	DEBUG(0,("seed=%u\n", seed));
 	srandom(seed);
 
-	ev = event_context_init(talloc_autofree_context());
+	ev = s4_event_context_init(talloc_autofree_context());
 
 	locking_init(1);
 	lp_smbcli_options(lp_ctx, &options);

source4/torture/masktest.c

@@ -355,7 +355,7 @@ static void usage(poptContext pc)
 
 	lp_ctx = cmdline_lp_ctx;
 
-	ev = event_context_init(talloc_autofree_context());
+	ev = s4_event_context_init(talloc_autofree_context());
 
 	gensec_init(lp_ctx);
 

source4/torture/smbtorture.c

@@ -689,7 +689,7 @@ int main(int argc,char *argv[])
 		exit(1);
 	}
 
-	torture = torture_context_init(event_context_init(NULL), ui_ops);
+	torture = torture_context_init(s4_event_context_init(NULL), ui_ops);
 	if (basedir != NULL) {
 		if (basedir[0] != '/') {
 			fprintf(stderr, "Please specify an absolute path to --basedir\n");

source4/utils/net/net.c

@@ -185,7 +185,7 @@ static int binary_net(int argc, const char **argv)
 
 	dcerpc_init();
 
-	ev = event_context_init(NULL);
+	ev = s4_event_context_init(NULL);
 	if (!ev) {
 		d_printf("Failed to create an event context\n");
 		exit(1);

source4/utils/nmblookup.c

@@ -359,7 +359,7 @@ int main(int argc, const char *argv[])
 
 	load_interfaces(NULL, lp_interfaces(cmdline_lp_ctx), &ifaces);
 
-	ev = event_context_init(talloc_autofree_context());
+	ev = s4_event_context_init(talloc_autofree_context());
 
 	while (poptPeekArg(pc)) {
 		const char *name = poptGetArg(pc);

source4/utils/ntlm_auth.c

@@ -462,7 +462,7 @@ static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
 		return;
 	}
 
-	ev = event_context_init(state);
+	ev = s4_event_context_init(state);
 	if (!ev) {
 		exit(1);
 	}