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Diffstat (limited to 'i/pc104/initrd/conf/busybox/util-linux/swaponoff.c')
-rw-r--r--i/pc104/initrd/conf/busybox/util-linux/swaponoff.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/util-linux/swaponoff.c b/i/pc104/initrd/conf/busybox/util-linux/swaponoff.c
new file mode 100644
index 0000000..8930035
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/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);
+
+#if ENABLE_DESKTOP
+ /* test for holes */
+ if (S_ISREG(st.st_mode))
+ if (st.st_blocks * 512 < st.st_size)
+ bb_error_msg("warning: swap file has holes");
+#endif
+
+ 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;
+}
+
+int swap_on_off_main(int argc, char **argv);
+int swap_on_off_main(int argc, char **argv)
+{
+ int ret;
+
+ if (argc == 1)
+ bb_show_usage();
+
+ ret = getopt32(argc, argv, "a");
+ if (ret)
+ return do_em_all();
+
+ /* ret = 0; redundant */
+ while (*++argv)
+ ret += swap_enable_disable(*argv);
+ return ret;
+}