diff --git a/rpush.c b/rpush.c
new file mode 100644
index 0000000..0293a1a
--- /dev/null
+++ b/rpush.c
@@ -0,0 +1,69 @@
+#include "cache.h"
+#include "rsh.h"
+#include <sys/socket.h>
+#include <errno.h>
+
+void service(int fd_in, int fd_out) {
+	ssize_t size;
+	int posn;
+	char sha1[20];
+	unsigned long objsize;
+	void *buf;
+	do {
+		posn = 0;
+		do {
+			size = read(fd_in, sha1 + posn, 20 - posn);
+			if (size < 0) {
+				perror("rpush: read ");
+				return;
+			}
+			if (!size)
+				return;
+			posn += size;
+		} while (posn < 20);
+
+		/* fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1)); */
+
+		buf = map_sha1_file(sha1, &objsize);
+		if (!buf) {
+			fprintf(stderr, "rpush: could not find %s\n", 
+				sha1_to_hex(sha1));
+			return;
+		}
+		posn = 0;
+		do {
+			size = write(fd_out, buf + posn, objsize - posn);
+			if (size <= 0) {
+				if (!size) {
+					fprintf(stderr, "rpush: write closed");
+				} else {
+					perror("rpush: write ");
+				}
+				return;
+			}
+			posn += size;
+		} while (posn < objsize);
+	} while (1);
+}
+
+int main(int argc, char **argv)
+{
+	int arg = 1;
+        char *commit_id;
+        char *url;
+	int fd_in, fd_out;
+	while (arg < argc && argv[arg][0] == '-') {
+                arg++;
+        }
+        if (argc < arg + 2) {
+                usage("rpush [-c] [-t] [-a] commit-id url");
+                return 1;
+        }
+	commit_id = argv[arg];
+	url = argv[arg + 1];
+	if (setup_connection(&fd_in, &fd_out, "rpull", url, arg, argv + 1))
+		return 1;
+
+	service(fd_in, fd_out);
+	return 0;
+}