static void delete_context(SMBCCTX *ctx) {
//Trying to fix the error: no talloc stackframe at ../source3/libsmb/cliconnect.c:2637, leaking memory
//TALLOC_CTX *frame = talloc_stackframe();
//First we need to purge the cache of servers the context has.
//This should also free all the used memory allocations.
smbc_getFunctionPurgeCachedServers(ctx)(ctx);
//We're done with the frame, free it up now.
//TALLOC_FREE(frame);
//Next we need to free the context itself, and free all the
//memory it used.
smbc_free_context(ctx, 1);
}
/*
* Free a context
*
* Returns 0 on success. Otherwise returns 1, the SMBCCTX is _not_ freed
* and thus you'll be leaking memory if not handled properly.
*
*/
int
smbc_free_context(SMBCCTX *context,
int shutdown_ctx)
{
if (!context) {
errno = EBADF;
return 1;
}
if (shutdown_ctx) {
SMBCFILE * f;
DEBUG(1,("Performing aggressive shutdown.\n"));
f = context->internal->files;
while (f) {
smbc_getFunctionClose(context)(context, f);
f = f->next;
}
context->internal->files = NULL;
/* First try to remove the servers the nice way. */
if (smbc_getFunctionPurgeCachedServers(context)(context)) {
SMBCSRV * s;
SMBCSRV * next;
DEBUG(1, ("Could not purge all servers, "
"Nice way shutdown failed.\n"));
s = context->internal->servers;
while (s) {
DEBUG(1, ("Forced shutdown: %p (fd=%d)\n",
s, s->cli->fd));
cli_shutdown(s->cli);
smbc_getFunctionRemoveCachedServer(context)(context,
s);
next = s->next;
DLIST_REMOVE(context->internal->servers, s);
SAFE_FREE(s);
s = next;
}
context->internal->servers = NULL;
}
}
else {
/* This is the polite way */
if (smbc_getFunctionPurgeCachedServers(context)(context)) {
DEBUG(1, ("Could not purge all servers, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
if (context->internal->servers) {
DEBUG(1, ("Active servers in context, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
if (context->internal->files) {
DEBUG(1, ("Active files in context, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
}
/* Things we have to clean up */
free(smbc_getWorkgroup(context));
smbc_setWorkgroup(context, NULL);
free(smbc_getNetbiosName(context));
smbc_setNetbiosName(context, NULL);
free(smbc_getUser(context));
smbc_setUser(context, NULL);
DEBUG(3, ("Context %p successfully freed\n", context));
/* Free any DFS auth context. */
TALLOC_FREE(context->internal->auth_info);
SAFE_FREE(context->internal);
SAFE_FREE(context);
/* Protect access to the count of contexts in use */
if (SMB_THREAD_LOCK(initialized_ctx_count_mutex) != 0) {
smb_panic("error locking 'initialized_ctx_count'");
}
if (initialized_ctx_count) {
initialized_ctx_count--;
}
if (initialized_ctx_count == 0) {
SMBC_module_terminate();
}
/* Unlock the mutex */
if (SMB_THREAD_UNLOCK(initialized_ctx_count_mutex) != 0) {
smb_panic("error unlocking 'initialized_ctx_count'");
}
return 0;
}
/*
* Free a context
*
* Returns 0 on success. Otherwise returns 1, the SMBCCTX is _not_ freed
* and thus you'll be leaking memory if not handled properly.
*
*/
int
smbc_free_context(SMBCCTX *context,
int shutdown_ctx)
{
if (!context) {
errno = EBADF;
return 1;
}
if (shutdown_ctx) {
SMBCFILE * f;
DEBUG(1,("Performing aggressive shutdown.\n"));
f = context->internal->files;
while (f) {
smbc_getFunctionClose(context)(context, f);
f = f->next;
}
context->internal->files = NULL;
/* First try to remove the servers the nice way. */
if (smbc_getFunctionPurgeCachedServers(context)(context)) {
SMBCSRV * s;
SMBCSRV * next;
DEBUG(1, ("Could not purge all servers, "
"Nice way shutdown failed.\n"));
s = context->internal->servers;
while (s) {
DEBUG(1, ("Forced shutdown: %p (fd=%d)\n",
s, s->cli->fd));
cli_shutdown(s->cli);
smbc_getFunctionRemoveCachedServer(context)(context,
s);
next = s->next;
DLIST_REMOVE(context->internal->servers, s);
SAFE_FREE(s);
s = next;
}
context->internal->servers = NULL;
}
}
else {
/* This is the polite way */
if (smbc_getFunctionPurgeCachedServers(context)(context)) {
DEBUG(1, ("Could not purge all servers, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
if (context->internal->servers) {
DEBUG(1, ("Active servers in context, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
if (context->internal->files) {
DEBUG(1, ("Active files in context, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
}
/* Things we have to clean up */
free(smbc_getWorkgroup(context));
smbc_setWorkgroup(context, NULL);
free(smbc_getNetbiosName(context));
smbc_setNetbiosName(context, NULL);
free(smbc_getUser(context));
smbc_setUser(context, NULL);
DEBUG(3, ("Context %p successfully freed\n", context));
SAFE_FREE(context->internal);
SAFE_FREE(context);
if (initialized_ctx_count) {
initialized_ctx_count--;
}
if (initialized_ctx_count == 0 && SMBC_initialized) {
gencache_shutdown();
secrets_shutdown();
gfree_all();
SMBC_initialized = false;
}
return 0;
}
