From 60731fb6e8108919d7636716f615fd3b8670d7ae Mon Sep 17 00:00:00 2001
From: David Galos <galosd83@students.rowan.edu>
Date: Tue, 2 Jul 2013 13:26:24 -0400
Subject: [PATCH] actually add the .c and .1 files

---
 sponge.1 | 15 +++++++++++++++
 sponge.c | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 sponge.1
 create mode 100644 sponge.c

diff --git a/sponge.1 b/sponge.1
new file mode 100644
index 0000000..a33d81a
--- /dev/null
+++ b/sponge.1
@@ -0,0 +1,15 @@
+.TH SPONGE 1 sbase\-VERSION
+.SH NAME
+sponge \- soak up standard input and write to a file
+.SH SYNOPSIS
+.B sponge
+.IR file
+.SH DESCRIPTION
+.B sponge
+reads stdin completely, then writes the saved contents to
+.IR file .
+This makes it possible to easily create pipes which read from and write to
+the same file.
+
+If the given file is a symbolic link, it writes to the links's destination
+instead.
diff --git a/sponge.c b/sponge.c
new file mode 100644
index 0000000..8084166
--- /dev/null
+++ b/sponge.c
@@ -0,0 +1,40 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+
+#include "text.h"
+#include "util.h"
+
+static void
+usage(void)
+{
+	eprintf("usage: sponge file\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+	FILE *fp, *tmpfp;
+
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND;
+
+	if(argc != 1)
+		usage();
+
+	if(!(tmpfp = tmpfile()))
+		eprintf("tmpfile:");
+
+	concat(stdin, "<stdin>", tmpfp, "<tmpfile>");
+	rewind(tmpfp);
+
+	if(!(fp = fopen(argv[0], "w")))
+		eprintf("sponge: '%s':", argv[0]);
+	concat(tmpfp, "<tmpfile>", fp, argv[0]);
+
+	fclose(fp);
+	fclose(tmpfp);
+
+	return 0;
+}