lib/util Split samba-modules library into public and private parts

This will allow OpenChange to get at the symbols it needs, without
exposing any more of this as a public API than we must.

Andrew Bartlett

1 files changed, 0 insertions, 240 deletions

diff --git a/lib/util/modules.c b/lib/util/modules.c
deleted file mode 100644
index e9e6bf5dc8..0000000000
--- a/lib/util/modules.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
-   Unix SMB/CIFS implementation.
-   Samba utility functions
-   Copyright (C) Jelmer Vernooij 2002-2003,2005-2007
-   Copyright (C) Stefan (metze) Metzmacher 2003
-   Copyright (C) Andrew Bartlett 2011
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "dynconfig/dynconfig.h"
-#include "lib/util/samba_modules.h"
-#include "system/filesys.h"
-#include "system/dir.h"
-
-/**
- * Obtain the init function from a shared library file
- */
-samba_init_module_fn load_module(const char *path, bool is_probe, void **handle_out)
-{
-	void *handle;
-	void *init_fn;
-	char *error;
-
-#if _SAMBA_BUILD_ == 3
-	/* Always try to use LAZY symbol resolving; if the plugin has
-	 * backwards compatibility, there might be symbols in the
-	 * plugin referencing to old (removed) functions
-	 */
-	handle = dlopen(path, RTLD_LAZY);
-#else
-	/* This should be a WAF build, where modules should be built
-	 * with no undefined symbols and are already linked against
-	 * the libraries that they are loaded by */
-	handle = dlopen(path, RTLD_NOW);
-#endif
-
-	/* This call should reset any possible non-fatal errors that
-	   occured since last call to dl* functions */
-	error = dlerror();
-
-	if (handle == NULL) {
-		int level = is_probe ? 5 : 0;
-		DEBUG(level, ("Error loading module '%s': %s\n", path, error ? error : ""));
-		return NULL;
-	}
-
-	init_fn = (samba_init_module_fn)dlsym(handle, SAMBA_INIT_MODULE);
-
-	/* we could check dlerror() to determine if it worked, because
-           dlsym() can validly return NULL, but what would we do with
-           a NULL pointer as a module init function? */
-
-	if (init_fn == NULL) {
-		DEBUG(0, ("Unable to find %s() in %s: %s\n",
-			  SAMBA_INIT_MODULE, path, dlerror()));
-		DEBUG(1, ("Loading module '%s' failed\n", path));
-		dlclose(handle);
-		return NULL;
-	}
-
-	if (handle_out) {
-		*handle_out = handle;
-	}
-
-	return (samba_init_module_fn)init_fn;
-}
-
-/**
- * Obtain list of init functions from the modules in the specified
- * directory
- */
-static samba_init_module_fn *load_modules(TALLOC_CTX *mem_ctx, const char *path)
-{
-	DIR *dir;
-	struct dirent *entry;
-	char *filename;
-	int success = 0;
-	samba_init_module_fn *ret = talloc_array(mem_ctx, samba_init_module_fn, 2);
-
-	ret[0] = NULL;
-
-	dir = opendir(path);
-	if (dir == NULL) {
-		talloc_free(ret);
-		return NULL;
-	}
-
-	while((entry = readdir(dir))) {
-		if (ISDOT(entry->d_name) || ISDOTDOT(entry->d_name))
-			continue;
-
-		filename = talloc_asprintf(mem_ctx, "%s/%s", path, entry->d_name);
-
-		ret[success] = load_module(filename, true, NULL);
-		if (ret[success]) {
-			ret = talloc_realloc(mem_ctx, ret, samba_init_module_fn, success+2);
-			success++;
-			ret[success] = NULL;
-		}
-
-		talloc_free(filename);
-	}
-
-	closedir(dir);
-
-	return ret;
-}
-
-/**
- * Run the specified init functions.
- *
- * @return true if all functions ran successfully, false otherwise
- */
-bool samba_init_module_fns_run(samba_init_module_fn *fns)
-{
-	int i;
-	bool ret = true;
-
-	if (fns == NULL)
-		return true;
-
-	for (i = 0; fns[i]; i++) { ret &= (bool)NT_STATUS_IS_OK(fns[i]()); }
-
-	return ret;
-}
-
-/**
- * Load the initialization functions from DSO files for a specific subsystem.
- *
- * Will return an array of function pointers to initialization functions
- */
-
-samba_init_module_fn *samba_modules_load(TALLOC_CTX *mem_ctx, const char *subsystem)
-{
-	char *path = modules_path(mem_ctx, subsystem);
-	samba_init_module_fn *ret;
-
-	ret = load_modules(mem_ctx, path);
-
-	talloc_free(path);
-
-	return ret;
-}
-
-
-/* Load a dynamic module.  Only log a level 0 error if we are not checking
-   for the existence of a module (probling). */
-
-static NTSTATUS do_smb_load_module(const char *module_name, bool is_probe)
-{
-	void *handle;
-	samba_init_module_fn init;
-	NTSTATUS status;
-
-	init = load_module(module_name, is_probe, &handle);
-	if (!init) {
-		return NT_STATUS_UNSUCCESSFUL;
-	}
-
-	DEBUG(2, ("Module '%s' loaded\n", module_name));
-
-	status = init();
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(0, ("Module '%s' initialization failed: %s\n",
-			    module_name, get_friendly_nt_error_msg(status)));
-		dlclose(handle);
-	}
-
-	return status;
-}
-
-/* Load all modules in list and return number of
- * modules that has been successfully loaded */
-int smb_load_modules(const char **modules)
-{
-	int i;
-	int success = 0;
-
-	for(i = 0; modules[i]; i++){
-		if(NT_STATUS_IS_OK(do_smb_load_module(modules[i], false))) {
-			success++;
-		}
-	}
-
-	DEBUG(2, ("%d modules successfully loaded\n", success));
-
-	return success;
-}
-
-NTSTATUS smb_probe_module(const char *subsystem, const char *module)
-{
-	char *full_path = NULL;
-	TALLOC_CTX *ctx = talloc_stackframe();
-	NTSTATUS status;
-
-	/* Check for absolute path */
-
-	/* if we make any 'samba multibyte string'
-	   calls here, we break
-	   for loading string modules */
-
-	DEBUG(5, ("Probing module '%s'\n", module));
-
-	if (module[0] == '/') {
-		status = do_smb_load_module(module, true);
-		TALLOC_FREE(ctx);
-		return status;
-	}
-
-	full_path = talloc_asprintf(ctx,
-				    "%s/%s.%s",
-				    modules_path(ctx, subsystem),
-				    module,
-				    shlib_ext());
-	if (!full_path) {
-		TALLOC_FREE(ctx);
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	DEBUG(5, ("Probing module '%s': Trying to load from %s\n",
-		module, full_path));
-
-	status = do_smb_load_module(full_path, true);
-
-	TALLOC_FREE(ctx);
-	return status;
-}