From dfc517b05395d925a4d7b1ce9633a849f9468e70 Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Thu, 23 Feb 2006 15:52:24 +0000 Subject: r13658: More moving around of files: - Collect the generic utility functions into a lib/util/ (a la GLib is for the GNOME folks) - Remove even more files from include/ (This used to be commit ba62880f5b05c2a505dc7f54676b231197a7e707) --- source4/lib/util/module.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 source4/lib/util/module.c (limited to 'source4/lib/util/module.c') diff --git a/source4/lib/util/module.c b/source4/lib/util/module.c new file mode 100644 index 0000000000..672d8df7ce --- /dev/null +++ b/source4/lib/util/module.c @@ -0,0 +1,97 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Jelmer Vernooij 2005 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "system/dir.h" + +static void *load_module(TALLOC_CTX *mem_ctx, const char *dir, const char *name) +{ + char *path; + void *handle; + void *init_fn; + + path = talloc_asprintf(mem_ctx, "%s/%s", dir, name); + + handle = dlopen(path, RTLD_NOW); + if (handle == NULL) { + DEBUG(0, ("Unable to open %s: %s\n", path, dlerror())); + talloc_free(path); + return NULL; + } + + init_fn = dlsym(handle, "init_module"); + + if (init_fn == NULL) { + DEBUG(0, ("Unable to find init_module() in %s: %s\n", path, dlerror())); + DEBUG(1, ("Loading module '%s' failed\n", path)); + dlclose(handle); + talloc_free(path); + return NULL; + } + + talloc_free(path); + + return init_fn; +} + +init_module_fn *load_modules(TALLOC_CTX *mem_ctx, const char *path) +{ + DIR *dir; + struct dirent *entry; + int success = 0; + init_module_fn *ret = talloc_array(mem_ctx, init_module_fn, 2); + + ret[0] = NULL; + + dir = opendir(path); + if (dir == NULL) { + talloc_free(ret); + return NULL; + } + + while((entry = readdir(dir))) { + if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) + continue; + + ret[success] = load_module(mem_ctx, path, entry->d_name); + if (ret[success]) { + ret = talloc_realloc(mem_ctx, ret, init_module_fn, success+2); + success++; + ret[success] = NULL; + } + } + + closedir(dir); + + return ret; +} + +BOOL run_init_functions(NTSTATUS (**fns) (void)) +{ + int i; + BOOL ret; + + if (fns == NULL) + return True; + + for (i = 0; fns[i]; i++) { ret &= NT_STATUS_IS_OK(fns[i]()); } + + return ret; +} -- cgit