1 files changed, 42 insertions, 0 deletions
diff --git a/util/sbase/sponge.c b/util/sbase/sponge.c
new file mode 100644
index 00000000..7a0b272b
--- /dev/null
+++ b/util/sbase/sponge.c
@@ -0,0 +1,42 @@
+/* See LICENSE file for copyright and license details. */
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "util.h"
+
+static void
+usage(void)
+{
+	eprintf("usage: %s file\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char tmp[] = "/tmp/sponge-XXXXXX";
+	int fd, tmpfd;
+
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND
+
+	if (argc != 1)
+		usage();
+
+	if ((tmpfd = mkstemp(tmp)) < 0)
+		eprintf("mkstemp:");
+	unlink(tmp);
+	if (concat(0, "<stdin>", tmpfd, "<tmpfile>") < 0)
+		return 1;
+	if (lseek(tmpfd, 0, SEEK_SET) < 0)
+		eprintf("lseek:");
+
+	if ((fd = creat(argv[0], 0666)) < 0)
+		eprintf("creat %s:", argv[0]);
+	if (concat(tmpfd, "<tmpfile>", fd, argv[0]) < 0)
+		return 1;
+
+	return 0;
+}