From 6dbe3af945a63f025561abb83275cee9ff06c57b Mon Sep 17 00:00:00 2001
From: Karel Zak
Date: Thu, 7 Dec 2006 00:25:32 +0100
Subject: Imported from util-linux-2.2 tarball.

---
 mount/swapon.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 mount/swapon.c

(limited to 'mount/swapon.c')

diff --git a/mount/swapon.c b/mount/swapon.c
new file mode 100644
index 000000000..584033021
--- /dev/null
+++ b/mount/swapon.c
@@ -0,0 +1,109 @@
+/*
+ * A swapon(8)/swapoff(8) for Linux 0.99.
+ * swapon.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp
+ */
+
+#include "sundries.h"
+
+/* Nonzero for chatty (-v).  This is a nonstandard flag (not in BSD).  */
+int verbose = 0;
+
+extern char version[];
+static char *program_name;
+static struct option longopts[] =
+{
+  { "all", 0, 0, 'a' },
+  { "help", 0, 0, 'h' },
+  { "verbose", 0, 0, 'v' },
+  { "version", 0, 0, 'V' },
+  { NULL, 0, 0, 0 }
+};
+
+const char *usage_string = "\
+usage: %s [-hV]\n\
+       %s -a [-v]\n\
+       %s [-v] special ...\n\
+";
+
+static void
+usage (FILE *fp, int n)
+{
+  fprintf (fp, usage_string, program_name, program_name, program_name);
+  exit (n);
+}
+
+static int
+swap (const char *special)
+{
+  int status;
+
+  if (verbose)
+    printf("%s on device %s\n", program_name, special);
+
+  if (streq (program_name, "swapon"))
+    status = swapon (special);
+  else
+    status = swapoff (special);
+
+  if (status < 0)
+    fprintf (stderr, "%s: %s: %s\n", program_name, special, strerror (errno));
+
+  return status;
+}
+
+int
+main (int argc, char *argv[])
+{
+  struct fstab *fstab;
+  int status;
+  int all = 0;
+  int c;
+
+  if (strrchr (argv[0], '/') != NULL)
+    program_name = strrchr (argv[0], '/') + 1;
+  else
+    program_name = argv[0];
+
+  while ((c = getopt_long (argc, argv, "ahvV", longopts, NULL)) != EOF)
+    switch (c)
+      {
+      case 'a':			/* all */
+	++all;
+	break;
+      case 'h':			/* help */
+	usage (stdout, 0);
+	break;
+      case 'v':			/* be chatty */
+	++verbose;
+	break;
+      case 'V':			/* version */
+	printf ("%s\n", version);
+	exit (0);
+      case 0:
+	break;
+      case '?':
+      default:
+	usage (stderr, 1);
+      }
+
+  argv += optind;
+
+  status = 0;
+
+  if (all)
+    {
+      while ((fstab = getfsent()) != NULL)
+	if (streq (fstab->fs_type, FSTAB_SW))
+	  status |= swap (fstab->fs_spec);
+    }
+  else if (*argv == NULL)
+    {
+      usage (stderr, 2);
+    }
+  else
+    {
+      while (*argv != NULL)
+	status |= swap (*argv++);
+    }
+  return status;
+}
-- 
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