1 files changed, 52 insertions, 0 deletions
diff --git a/swapoff.c b/swapoff.c
new file mode 100644
index 0000000..55124d0
--- /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);
+}