2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2002
6 Copyright (C) Simo Sorce 2001
7 Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003.
8 Copyright (C) James J Myers 2003
9 Copyright (C) Jelmer Vernooij 2005-2007
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #include "dynconfig.h"
27 #include "system/network.h"
28 #include "system/filesys.h"
29 #include "system/dir.h"
30 #include "param/param.h"
34 * @brief Misc utility functions
38 _PUBLIC_ bool lp_is_mydomain(struct loadparm_context *lp_ctx,
41 return strequal(lp_workgroup(lp_ctx), domain);
45 see if a string matches either our primary or one of our secondary
46 netbios aliases. do a case insensitive match
48 _PUBLIC_ bool lp_is_myname(struct loadparm_context *lp_ctx, const char *name)
53 if (strcasecmp(name, lp_netbios_name(lp_ctx)) == 0) {
57 aliases = lp_netbios_aliases(lp_ctx);
58 for (i=0; aliases && aliases[i]; i++) {
59 if (strcasecmp(name, aliases[i]) == 0) {
69 A useful function for returning a path in the Samba lock directory.
71 _PUBLIC_ char *lock_path(TALLOC_CTX* mem_ctx, struct loadparm_context *lp_ctx,
78 if (name[0] == 0 || name[0] == '/' || strstr(name, ":/")) {
79 return talloc_strdup(mem_ctx, name);
82 dname = talloc_strdup(mem_ctx, lp_lockdir(lp_ctx));
83 trim_string(dname,"","/");
85 if (!directory_exist(dname)) {
89 fname = talloc_asprintf(mem_ctx, "%s/%s", dname, name);
97 * @brief Returns an absolute path to a file in the directory containing the current config file
99 * @param name File to find, relative to the config file directory.
101 * @retval Pointer to a talloc'ed string containing the full path.
104 _PUBLIC_ char *config_path(TALLOC_CTX* mem_ctx, struct loadparm_context *lp_ctx,
107 char *fname, *config_dir, *p;
108 config_dir = talloc_strdup(mem_ctx, lp_configfile(lp_ctx));
109 p = strrchr(config_dir, '/');
114 fname = talloc_asprintf(mem_ctx, "%s/%s", config_dir, name);
115 talloc_free(config_dir);
120 * @brief Returns an absolute path to a file in the Samba private directory.
122 * @param name File to find, relative to PRIVATEDIR.
123 * if name is not relative, then use it as-is
125 * @retval Pointer to a talloc'ed string containing the full path.
127 _PUBLIC_ char *private_path(TALLOC_CTX* mem_ctx,
128 struct loadparm_context *lp_ctx,
135 if (name[0] == 0 || name[0] == '/' || strstr(name, ":/")) {
136 return talloc_strdup(mem_ctx, name);
138 fname = talloc_asprintf(mem_ctx, "%s/%s", lp_private_dir(lp_ctx), name);
143 return a path in the smbd.tmp directory, where all temporary file
144 for smbd go. If NULL is passed for name then return the directory
147 _PUBLIC_ char *smbd_tmp_path(TALLOC_CTX *mem_ctx,
148 struct loadparm_context *lp_ctx,
153 dname = private_path(mem_ctx, lp_ctx, "smbd.tmp");
154 if (!directory_exist(dname)) {
162 fname = talloc_asprintf(mem_ctx, "%s/%s", dname, name);
169 * Obtain the init function from a shared library file
171 _PUBLIC_ init_module_fn load_module(TALLOC_CTX *mem_ctx, const char *path)
176 handle = dlopen(path, RTLD_NOW);
177 if (handle == NULL) {
178 DEBUG(0, ("Unable to open %s: %s\n", path, dlerror()));
182 init_fn = dlsym(handle, "init_module");
184 if (init_fn == NULL) {
185 DEBUG(0, ("Unable to find init_module() in %s: %s\n", path, dlerror()));
186 DEBUG(1, ("Loading module '%s' failed\n", path));
191 return (init_module_fn)init_fn;
195 * Obtain list of init functions from the modules in the specified
198 _PUBLIC_ init_module_fn *load_modules(TALLOC_CTX *mem_ctx, const char *path)
201 struct dirent *entry;
204 init_module_fn *ret = talloc_array(mem_ctx, init_module_fn, 2);
214 while((entry = readdir(dir))) {
215 if (ISDOT(entry->d_name) || ISDOTDOT(entry->d_name))
218 filename = talloc_asprintf(mem_ctx, "%s/%s", path, entry->d_name);
220 ret[success] = load_module(mem_ctx, filename);
222 ret = talloc_realloc(mem_ctx, ret, init_module_fn, success+2);
227 talloc_free(filename);
236 * Run the specified init functions.
238 * @return true if all functions ran successfully, false otherwise
240 _PUBLIC_ bool run_init_functions(init_module_fn *fns)
248 for (i = 0; fns[i]; i++) { ret &= (bool)NT_STATUS_IS_OK(fns[i]()); }
253 static char *modules_path(TALLOC_CTX* mem_ctx, struct loadparm_context *lp_ctx,
256 const char *env_moduledir = getenv("LD_SAMBA_MODULE_PATH");
257 return talloc_asprintf(mem_ctx, "%s/%s",
258 env_moduledir?env_moduledir:lp_modulesdir(lp_ctx),
263 * Load the initialization functions from DSO files for a specific subsystem.
265 * Will return an array of function pointers to initialization functions
268 _PUBLIC_ init_module_fn *load_samba_modules(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx, const char *subsystem)
270 char *path = modules_path(mem_ctx, lp_ctx, subsystem);
273 ret = load_modules(mem_ctx, path);
280 _PUBLIC_ const char *lp_messaging_path(TALLOC_CTX *mem_ctx,
281 struct loadparm_context *lp_ctx)
283 return smbd_tmp_path(mem_ctx, lp_ctx, "messaging");