From 008d0be72b2f160382c6e880765e96b64a050c65 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Sat, 3 Jan 2015 12:04:58 +0100
Subject: imported original firmware WRT54GL_v4.30.11_11_US

---
 release/src/router/busybox/swaponoff.c | 115 +++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 release/src/router/busybox/swaponoff.c

(limited to 'release/src/router/busybox/swaponoff.c')

diff --git a/release/src/router/busybox/swaponoff.c b/release/src/router/busybox/swaponoff.c
new file mode 100644
index 00000000..ce0e2c6c
--- /dev/null
+++ b/release/src/router/busybox/swaponoff.c
@@ -0,0 +1,115 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini swapon/swapoff implementation for busybox
+ *
+ *
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
+ * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <mntent.h>
+#include <dirent.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+
+#if __GNU_LIBRARY__ < 5
+/* libc5 doesn't have sys/swap.h, define these here. */ 
+extern int swapon (__const char *__path, int __flags);
+extern int swapoff (__const char *__path);
+#else
+#include <sys/swap.h>
+#endif
+
+#include "busybox.h"
+
+static int whichApp;
+
+static const int SWAPON_APP = 1;
+static const int SWAPOFF_APP = 2;
+
+
+static void swap_enable_disable(char *device)
+{
+	int status;
+
+	if (whichApp == SWAPON_APP)
+		status = swapon(device, 0);
+	else
+		status = swapoff(device);
+
+	if (status != 0)
+		perror_msg_and_die(applet_name);
+}
+
+static void do_em_all()
+{
+	struct mntent *m;
+	FILE *f = setmntent("/etc/fstab", "r");
+
+	if (f == NULL)
+		perror_msg_and_die("/etc/fstab");
+	while ((m = getmntent(f)) != NULL) {
+		if (strcmp(m->mnt_type, MNTTYPE_SWAP)==0) {
+			swap_enable_disable(m->mnt_fsname);
+		}
+	}
+	endmntent(f);
+	exit(EXIT_SUCCESS);
+}
+
+
+extern int swap_on_off_main(int argc, char **argv)
+{
+	if (strcmp(applet_name, "swapon") == 0) {
+		whichApp = SWAPON_APP;
+	} else {
+		whichApp = SWAPOFF_APP;
+	}
+
+	if (argc != 2) {
+		goto usage_and_exit;
+	}
+	argc--;
+	argv++;
+
+	/* Parse any options */
+	while (**argv == '-') {
+		while (*++(*argv))
+			switch (**argv) {
+			case 'a':
+				{
+					struct stat statBuf;
+
+					if (stat("/etc/fstab", &statBuf) < 0)
+						error_msg_and_die("/etc/fstab file missing");
+				}
+				do_em_all();
+				break;
+			default:
+				goto usage_and_exit;
+			}
+	}
+	swap_enable_disable(*argv);
+	return EXIT_SUCCESS;
+
+  usage_and_exit:
+	show_usage();
+}
-- 
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