OpenSolaris Launch

1 files changed, 74 insertions, 0 deletions

diff --git a/usr/src/lib/libmail/common/delempty.c b/usr/src/lib/libmail/common/delempty.c
new file mode 100644
index 0000000000..ceb9a0e65e
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+++ b/usr/src/lib/libmail/common/delempty.c
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ * Copyright (c) 1999, by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+/*LINTLIBRARY*/
+
+/*
+ *  NAME
+ *	delempty - delete an empty mail box
+ *
+ *  SYNOPSIS
+ *	int delempty(mode_t mode, char *mailname)
+ *
+ *  DESCRIPTION
+ *	Delete an empty mail box if it's allowed. Check
+ *	the value of xgetenv("DEL_EMPTY_MFILE") for
+ *	"yes" [always], "no" [never] or the default [based
+ *	on the mode].
+ */
+
+#include "synonyms.h"
+#include "libmail.h"
+#include <sys/types.h>
+#include <unistd.h>
+
+int
+delempty(mode_t mode, char *mailname)
+{
+	char *del_empty = Xgetenv("DEL_EMPTY_MFILE");
+	size_t del_len;
+	int do_del = 0;
+
+	del_len = strlen(del_empty);
+	/* "yes" means always remove the mailfile */
+	if (casncmp(del_empty, "yes", (ssize_t)del_len))
+		do_del = 1;
+	/* "no" means never remove the mailfile */
+	else if (!casncmp(del_empty, "no", (ssize_t)del_len)) {
+		/* check for mode 0660 */
+		if ((mode & 07777) == MFMODE)
+			do_del = 1;
+	}
+
+	if (do_del)
+		(void) unlink(mailname);
+	return (do_del);
+}