Correcting tag name to be like previous ones1_3_0

1 files changed, 77 insertions, 0 deletions

diff --git a/util-linux/swaponoff.c b/util-linux/swaponoff.c
new file mode 100644
index 0000000..8434d12
--- /dev/null
+++ b/util-linux/swaponoff.c
@@ -0,0 +1,77 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini swapon/swapoff implementation for busybox
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ */
+
+#include "busybox.h"
+#include <mntent.h>
+#include <sys/swap.h>
+
+
+static int swap_enable_disable(char *device)
+{
+	int status;
+	struct stat st;
+
+	xstat(device, &st);
+
+	/* test for holes */
+	if (S_ISREG(st.st_mode))
+		if (st.st_blocks * 512 < st.st_size)
+			bb_error_msg_and_die("swap file has holes");
+
+	if (applet_name[5] == 'n')
+		status = swapon(device, 0);
+	else
+		status = swapoff(device);
+
+	if (status != 0) {
+		bb_perror_msg("%s", device);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int do_em_all(void)
+{
+	struct mntent *m;
+	FILE *f;
+	int err;
+
+	f = setmntent("/etc/fstab", "r");
+	if (f == NULL)
+		bb_perror_msg_and_die("/etc/fstab");
+
+	err = 0;
+	while ((m = getmntent(f)) != NULL)
+		if (strcmp(m->mnt_type, MNTTYPE_SWAP) == 0)
+			err += swap_enable_disable(m->mnt_fsname);
+
+	endmntent(f);
+
+	return err;
+}
+
+#define DO_ALL    0x01
+
+int swap_on_off_main(int argc, char **argv)
+{
+	int ret;
+
+	if (argc == 1)
+		bb_show_usage();
+
+	ret = getopt32(argc, argv, "a");
+	if (ret & DO_ALL)
+		return do_em_all();
+
+	ret = 0;
+	while (*++argv)
+		ret += swap_enable_disable(*argv);
+	return ret;
+}