1 files changed, 39 insertions, 0 deletions
diff --git a/lib/misc/sharedlib.c b/lib/misc/sharedlib.c
new file mode 100644
index 000000000..b07e3133a
--- /dev/null
+++ b/lib/misc/sharedlib.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2002 Sistina Software (UK) Limited.
+ *
+ * This file is released under the LGPL.
+ *
+ */
+
+#include "lib.h"
+#include "config.h"
+#include "lvm-string.h"
+
+#include <limits.h>
+#include <sys/stat.h>
+#include <dlfcn.h>
+
+void *load_shared_library(struct config_tree *cf, const char *libname,
+			  const char *desc)
+{
+	char path[PATH_MAX];
+	struct stat info;
+	const char *lib_dir;
+	void *library;
+
+	/* If libname doesn't begin with '/' then use lib_dir/libname,
+	 * if present */
+	if (libname[0] == '/' ||
+	    !(lib_dir = find_config_str(cf->root, "global/library_dir",
+					'/', 0)) ||
+	    (lvm_snprintf(path, sizeof(path), "%s/%s", lib_dir,
+			  libname) == -1) || stat(path, &info) == -1)
+		strncpy(path, libname, sizeof(path));
+
+	log_very_verbose("Opening shared %s library %s", desc, path);
+
+	if (!(library = dlopen(path, RTLD_LAZY)))
+		log_error("Unable to open external %s library %s", desc, path);
+
+	return library;
+}