dynconfig/dynconfig.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Copyright (C) 2001 by Martin Pool <mbp@samba.org>
   4    Copyright (C) Jim McDonough (jmcd@us.ibm.com)  2003.
   5    Copyright (C) Stefan Metzmacher      2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 /**
  22  * @file dynconfig.c
  23  *
  24  * @brief Global configurations, initialized to configured defaults.
  25  *
  26  * This file should be the only file that depends on path
  27  * configuration (--prefix, etc), so that if ./configure is re-run,
  28  * all programs will be appropriately updated.  Everything else in
  29  * Samba should import extern variables from here, rather than relying
  30  * on preprocessor macros.
  31  *
  32  * Eventually some of these may become even more variable, so that
  33  * they can for example consistently be set across the whole of Samba
  34  * by command-line parameters, config file entries, or environment
  35  * variables.
  36  *
  37  * @todo Perhaps eventually these should be merged into the parameter
  38  * table?  There's kind of a chicken-and-egg situation there...
  39  **/
  40
  41 #include "replace.h"
  42 #include "dynconfig.h"
  43 #include "lib/util/memory.h"
  44
  45 #define DEFINE_DYN_CONFIG_PARAM(name) \
  46 const char *dyn_##name = name; \
  47 \
  48 bool is_default_dyn_##name(void) \
  49 {\
  50         if (strcmp(name, dyn_##name) == 0) { \
  51                 return true; \
  52         } \
  53         return false; \
  54 }\
  55 \
  56 const char *get_dyn_##name(void) \
  57 {\
  58         return dyn_##name;\
  59 }\
  60 \
  61 const char *set_dyn_##name(const char *newpath) \
  62 {\
  63         if (newpath == NULL) { \
  64                 return NULL; \
  65         } \
  66         if (strcmp(name, newpath) == 0) { \
  67                 return dyn_##name; \
  68         } \
  69         newpath = strdup(newpath);\
  70         if (newpath == NULL) { \
  71                 return NULL; \
  72         } \
  73         if (is_default_dyn_##name()) { \
  74                 /* do not free a static string */ \
  75         } else if (dyn_##name) {\
  76                 free(discard_const(dyn_##name)); \
  77         }\
  78         dyn_##name = newpath; \
  79         return dyn_##name;\
  80 }
  81
  82 DEFINE_DYN_CONFIG_PARAM(SBINDIR)
  83 DEFINE_DYN_CONFIG_PARAM(BINDIR)
  84 DEFINE_DYN_CONFIG_PARAM(CONFIGFILE) /**< Location of smb.conf file. **/
  85 DEFINE_DYN_CONFIG_PARAM(LOGFILEBASE) /** Log file directory. **/
  86 DEFINE_DYN_CONFIG_PARAM(LMHOSTSFILE) /** Statically configured LanMan hosts. **/
  87 DEFINE_DYN_CONFIG_PARAM(CODEPAGEDIR)
  88 DEFINE_DYN_CONFIG_PARAM(LIBDIR)
  89 DEFINE_DYN_CONFIG_PARAM(MODULESDIR)
  90 DEFINE_DYN_CONFIG_PARAM(SHLIBEXT)
  91 DEFINE_DYN_CONFIG_PARAM(LOCKDIR)
  92 DEFINE_DYN_CONFIG_PARAM(STATEDIR) /** Persistent state files. Default LOCKDIR */
  93 DEFINE_DYN_CONFIG_PARAM(CACHEDIR) /** Temporary cache files. Default LOCKDIR */
  94 DEFINE_DYN_CONFIG_PARAM(PIDDIR)
  95 DEFINE_DYN_CONFIG_PARAM(NCALRPCDIR)
  96 DEFINE_DYN_CONFIG_PARAM(SMB_PASSWD_FILE)
  97 DEFINE_DYN_CONFIG_PARAM(PRIVATE_DIR)
  98 DEFINE_DYN_CONFIG_PARAM(LOCALEDIR)
  99 DEFINE_DYN_CONFIG_PARAM(NMBDSOCKETDIR)
 100 DEFINE_DYN_CONFIG_PARAM(DATADIR)
 101 DEFINE_DYN_CONFIG_PARAM(SETUPDIR)
 102 DEFINE_DYN_CONFIG_PARAM(WINBINDD_SOCKET_DIR) /* from winbind_struct_protocol.h in s3 autoconf */
 103 DEFINE_DYN_CONFIG_PARAM(NTP_SIGND_SOCKET_DIR)
 104 DEFINE_DYN_CONFIG_PARAM(PYTHONDIR)
 105 DEFINE_DYN_CONFIG_PARAM(PYTHONARCHDIR)
 106 DEFINE_DYN_CONFIG_PARAM(SCRIPTSBINDIR)