1 files changed, 104 insertions, 0 deletions
diff --git a/ssh-push.c b/ssh-push.c
new file mode 100644
index 0000000000..9994ea7fc0
--- /dev/null
+++ b/ssh-push.c
@@ -0,0 +1,104 @@
+#include "cache.h"
+#include "rsh.h"
+#include <sys/socket.h>
+#include <errno.h>
+
+unsigned char local_version = 1;
+unsigned char remote_version = 0;
+
+int serve_object(int fd_in, int fd_out) {
+	ssize_t size;
+	int posn = 0;
+	char sha1[20];
+	unsigned long objsize;
+	void *buf;
+	signed char remote;
+	do {
+		size = read(fd_in, sha1 + posn, 20 - posn);
+		if (size < 0) {
+			perror("git-ssh-push: read ");
+			return -1;
+		}
+		if (!size)
+			return -1;
+		posn += size;
+	} while (posn < 20);
+	
+	/* fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1)); */
+	remote = 0;
+	
+	buf = map_sha1_file(sha1, &objsize);
+	
+	if (!buf) {
+		fprintf(stderr, "git-ssh-push: could not find %s\n", 
+			sha1_to_hex(sha1));
+		remote = -1;
+	}
+	
+	write(fd_out, &remote, 1);
+	
+	if (remote < 0)
+		return 0;
+	
+	posn = 0;
+	do {
+		size = write(fd_out, buf + posn, objsize - posn);
+		if (size <= 0) {
+			if (!size) {
+				fprintf(stderr, "git-ssh-push: write closed");
+			} else {
+				perror("git-ssh-push: write ");
+			}
+			return -1;
+		}
+		posn += size;
+	} while (posn < objsize);
+	return 0;
+}
+
+int serve_version(int fd_in, int fd_out)
+{
+	if (read(fd_in, &remote_version, 1) < 1)
+		return -1;
+	write(fd_out, &local_version, 1);
+	return 0;
+}
+
+void service(int fd_in, int fd_out) {
+	char type;
+	int retval;
+	do {
+		retval = read(fd_in, &type, 1);
+		if (retval < 1) {
+			if (retval < 0)
+				perror("git-ssh-push: read ");
+			return;
+		}
+		if (type == 'v' && serve_version(fd_in, fd_out))
+			return;
+		if (type == 'o' && serve_object(fd_in, fd_out))
+			return;
+	} 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("git-ssh-push [-c] [-t] [-a] commit-id url");
+                return 1;
+        }
+	commit_id = argv[arg];
+	url = argv[arg + 1];
+	if (setup_connection(&fd_in, &fd_out, "git-ssh-pull", url, arg, argv + 1))
+		return 1;
+
+	service(fd_in, fd_out);
+	return 0;
+}