1 files changed, 97 insertions, 0 deletions
diff --git a/src/pulsecore/modinfo.c b/src/pulsecore/modinfo.c
new file mode 100644
index 0000000..e1a814f
--- /dev/null
+++ b/src/pulsecore/modinfo.c
@@ -0,0 +1,97 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2.1 of the
+  License, or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <ltdl.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/log.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/ltdl-helper.h>
+
+#include "modinfo.h"
+
+#define PA_SYMBOL_AUTHOR "pa__get_author"
+#define PA_SYMBOL_DESCRIPTION "pa__get_description"
+#define PA_SYMBOL_USAGE "pa__get_usage"
+#define PA_SYMBOL_VERSION "pa__get_version"
+#define PA_SYMBOL_DEPRECATED "pa__get_deprecated"
+#define PA_SYMBOL_LOAD_ONCE "pa__load_once"
+
+pa_modinfo *pa_modinfo_get_by_handle(lt_dlhandle dl, const char *module_name) {
+    pa_modinfo *i;
+    const char* (*func)(void);
+    bool (*func2) (void);
+
+    pa_assert(dl);
+
+    i = pa_xnew0(pa_modinfo, 1);
+
+    if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_AUTHOR)))
+        i->author = pa_xstrdup(func());
+
+    if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_DESCRIPTION)))
+        i->description = pa_xstrdup(func());
+
+    if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_USAGE)))
+        i->usage = pa_xstrdup(func());
+
+    if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_VERSION)))
+        i->version = pa_xstrdup(func());
+
+    if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_DEPRECATED)))
+        i->deprecated = pa_xstrdup(func());
+
+    if ((func2 = (bool (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_LOAD_ONCE)))
+        i->load_once = func2();
+
+    return i;
+}
+
+pa_modinfo *pa_modinfo_get_by_name(const char *name) {
+    lt_dlhandle dl;
+    pa_modinfo *i;
+
+    pa_assert(name);
+
+    if (!(dl = lt_dlopenext(name))) {
+        pa_log("Failed to open module \"%s\": %s", name, lt_dlerror());
+        return NULL;
+    }
+
+    i = pa_modinfo_get_by_handle(dl, name);
+    lt_dlclose(dl);
+
+    return i;
+}
+
+void pa_modinfo_free(pa_modinfo *i) {
+    pa_assert(i);
+
+    pa_xfree(i->author);
+    pa_xfree(i->description);
+    pa_xfree(i->usage);
+    pa_xfree(i->version);
+    pa_xfree(i->deprecated);
+    pa_xfree(i);
+}