From cc8ed39b240180b58810784f844e253263594ac3 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Tue, 5 Oct 1999 16:24:54 +0000
Subject: Initial revision

---
 swapoff.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 swapoff.c

(limited to 'swapoff.c')

diff --git a/swapoff.c b/swapoff.c
new file mode 100644
index 000000000..55124d0b8
--- /dev/null
+++ b/swapoff.c
@@ -0,0 +1,52 @@
+#include <sys/swap.h>
+#include <string.h>
+#include <errno.h>
+#include <mntent.h>
+#include "internal.h"
+
+const char	swapoff_usage[] = "swapoff block-device\n"
+"\n"
+"\tStop swapping virtual memory pages on the given device.\n";
+
+extern int
+swapoff_fn(const struct FileInfo * i)
+{
+	struct mntent   entries[100];
+	int	     count = 0;
+	FILE *	  swapsTable = setmntent("/etc/swaps", "r");
+	struct mntent * m;
+
+	if (!(swapoff(i->source))) {
+		if ( swapsTable == 0 ) {
+			fprintf(stderr, "/etc/swaps: %s\n", strerror(errno));
+			return 1;
+		}
+		while ( (m = getmntent(swapsTable)) != 0 ) {
+			entries[count].mnt_fsname = strdup(m->mnt_fsname);
+			entries[count].mnt_dir = strdup(m->mnt_dir);
+			entries[count].mnt_type = strdup(m->mnt_type);
+			entries[count].mnt_opts = strdup(m->mnt_opts);
+			entries[count].mnt_freq = m->mnt_freq;
+			entries[count].mnt_passno = m->mnt_passno;
+			count++;
+		}
+		endmntent(swapsTable);
+		if ( (swapsTable = setmntent("/etc/swaps", "w")) ) {
+			int     id;
+			for ( id = 0; id < count; id++ ) {
+				int result = 
+				 (strcmp(entries[id].mnt_fsname, i->source)==0
+				 ||strcmp(entries[id].mnt_dir, i->source)==0);
+				if ( result )
+					continue;
+				else
+					addmntent(swapsTable, &entries[id]);
+			}
+			endmntent(swapsTable);
+		}
+		else if ( errno != EROFS )
+			fprintf(stderr, "/etc/swaps: %s\n", strerror(errno));
+		return (0);
+	}
+	return (-1);
+}
-- 
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