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https://github.com/samba-team/samba.git
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6213606771
Reviewed-by: Alexander Bokovoy <ab@samba.org>
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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COM class tables
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Copyright (C) 2004 Jelmer Vernooij <jelmer@samba.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "../lib/util/dlinklist.h"
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#include "lib/com/com.h"
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#include "librpc/gen_ndr/ndr_misc.h"
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/* Specific implementation of one or more interfaces */
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struct com_class
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{
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const char *progid;
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struct GUID clsid;
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struct IUnknown *class_object;
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struct com_class *prev, *next;
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} * running_classes = NULL;
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static struct IUnknown *get_com_class_running(const struct GUID *clsid)
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{
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struct com_class *c = running_classes;
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while(c) {
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if (GUID_equal(clsid, &c->clsid)) {
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return c->class_object;
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}
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c = c->next;
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}
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return NULL;
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}
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static struct IUnknown *get_com_class_so(TALLOC_CTX *mem_ctx, const struct GUID *clsid)
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{
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char *module_name;
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char *clsid_str;
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void *mod;
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get_class_object_function f;
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clsid_str = GUID_string(mem_ctx, clsid);
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module_name = talloc_asprintf(mem_ctx, "%s.so", clsid_str);
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talloc_free(clsid_str);
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mod = dlopen(module_name, 0);
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if (!mod) {
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return NULL;
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}
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f = dlsym(mod, "get_class_object");
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if (!f) {
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dlclose(mod);
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return NULL;
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}
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return f(clsid);
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}
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struct IUnknown *com_class_by_clsid(struct com_context *ctx, const struct GUID *clsid)
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{
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struct IUnknown *c;
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/* Check list of running COM classes first */
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c = get_com_class_running(clsid);
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if (c != NULL) {
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return c;
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}
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c = get_com_class_so(ctx, clsid);
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if (c != NULL) {
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return c;
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}
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return NULL;
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}
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NTSTATUS com_register_running_class(struct GUID *clsid, const char *progid, struct IUnknown *p)
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{
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struct com_class *l = talloc_zero(running_classes?running_classes:talloc_autofree_context(), struct com_class);
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l->clsid = *clsid;
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l->progid = talloc_strdup(l, progid);
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l->class_object = p;
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DLIST_ADD(running_classes, l);
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return NT_STATUS_OK;
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}
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