1 files changed, 108 insertions, 0 deletions
diff --git a/lib/lockpw.c b/lib/lockpw.c
new file mode 100644
index 0000000..0bcf195
--- /dev/null
+++ b/lib/lockpw.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 1992       , Julianne Frances Haugh
+ * Copyright (c) 1996 - 1998, Marek Michałkiewicz
+ * Copyright (c) 2005       , Tomasz Kłoczko
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the copyright holders or contributors may not be used to
+ *    endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#ifndef HAVE_LCKPWDF
+
+#ident "$Id$"
+
+#include "prototypes.h"
+#include "defines.h"
+#include "pwio.h"
+#include "shadowio.h"
+/*
+ * lckpwdf - lock the password files
+ */
+int lckpwdf (void)
+{
+	int i;
+
+	/*
+	 * We have 15 seconds to lock the whole mess
+	 */
+
+	for (i = 0; i < 15; i++)
+		if (pw_lock ())
+			break;
+		else
+			sleep (1);
+
+	/*
+	 * Did we run out of time?
+	 */
+
+	if (i == 15)
+		return -1;
+
+	/*
+	 * Nope, use any remaining time to lock the shadow password
+	 * file.
+	 */
+
+	for (; i < 15; i++)
+		if (spw_lock ())
+			break;
+		else
+			sleep (1);
+
+	/*
+	 * Out of time yet?
+	 */
+
+	if (i == 15) {
+		pw_unlock ();
+		return -1;
+	}
+
+	/*
+	 * Nope - and both files are now locked.
+	 */
+
+	return 0;
+}
+
+/*
+ * ulckpwdf - unlock the password files
+ */
+
+int ulckpwdf (void)
+{
+
+	/*
+	 * Unlock both files.
+	 */
+
+	return (pw_unlock () && spw_unlock ())? 0 : -1;
+}
+#else
+extern int errno;		/* warning: ANSI C forbids an empty source file */
+#endif