diff options
Diffstat (limited to 'source4/param')
| -rw-r--r-- | source4/param/loadparm.c | 27 | ||||
| -rw-r--r-- | source4/param/param.h | 1 |
2 files changed, 28 insertions, 0 deletions
diff --git a/source4/param/loadparm.c b/source4/param/loadparm.c index f6f894d5bc..55cb45eaed 100644 --- a/source4/param/loadparm.c +++ b/source4/param/loadparm.c @@ -531,6 +531,8 @@ struct loadparm_context { time_t modtime; } *file_lists; unsigned int flags[NUMPARAMETERS]; + bool loaded; + bool refuse_free; }; @@ -2263,6 +2265,13 @@ static int lp_destructor(struct loadparm_context *lp_ctx) { struct parmlist_entry *data; + if (lp_ctx->refuse_free) { + /* someone is trying to free the + global_loadparm_context. + We can't allow that. */ + return -1; + } + if (lp_ctx->globals->param_opt != NULL) { struct parmlist_entry *next; for (data = lp_ctx->globals->param_opt; data; data=next) { @@ -2278,6 +2287,8 @@ static int lp_destructor(struct loadparm_context *lp_ctx) /** * Initialise the global parameter structure. + * + * Note that most callers should use loadparm_init_global() instead */ struct loadparm_context *loadparm_init(TALLOC_CTX *mem_ctx) { @@ -2481,6 +2492,21 @@ struct loadparm_context *loadparm_init(TALLOC_CTX *mem_ctx) return lp_ctx; } +/** + * Initialise the global parameter structure. + */ +struct loadparm_context *loadparm_init_global(bool load_default) +{ + if (global_loadparm_context == NULL) { + global_loadparm_context = loadparm_init(NULL); + } + if (load_default && !global_loadparm_context->loaded) { + lpcfg_load_default(global_loadparm_context); + } + global_loadparm_context->refuse_free = true; + return global_loadparm_context; +} + const char *lpcfg_configfile(struct loadparm_context *lp_ctx) { return lp_ctx->szConfigFile; @@ -2588,6 +2614,7 @@ bool lpcfg_load(struct loadparm_context *lp_ctx, const char *filename) /* set the context used by the lp_*() function varients */ global_loadparm_context = lp_ctx; + lp_ctx->loaded = true; } return bRetval; diff --git a/source4/param/param.h b/source4/param/param.h index ea121fa6da..21a97fbcd0 100644 --- a/source4/param/param.h +++ b/source4/param/param.h @@ -175,6 +175,7 @@ void lpcfg_killunused(struct loadparm_context *lp_ctx, * Initialise the global parameter structure. */ struct loadparm_context *loadparm_init(TALLOC_CTX *mem_ctx); +struct loadparm_context *loadparm_init_global(bool load_default); const char *lpcfg_configfile(struct loadparm_context *lp_ctx); bool lpcfg_load_default(struct loadparm_context *lp_ctx); const char *lp_default_path(void); |