upload-pack: test negotiation with changing repository

diff --git a/pkt-line.c b/pkt-line.c
index 7296731cf3222946f565c97144e0f6fb2dc8850b..a593c08aad814ca015198936158219f44cbd0226 100644 (file)
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -215,6 +215,22 @@ void packet_buf_write(struct strbuf *buf, const char *fmt, ...)
        va_end(args);
 }
 
+void packet_buf_write_len(struct strbuf *buf, const char *data, size_t len)
+{
+       size_t orig_len, n;
+
+       orig_len = buf->len;
+       strbuf_addstr(buf, "0000");
+       strbuf_add(buf, data, len);
+       n = buf->len - orig_len;
+
+       if (n > LARGE_PACKET_MAX)
+               die("protocol error: impossibly long line");
+
+       set_packet_header(&buf->buf[orig_len], n);
+       packet_trace(data, len, 1);
+}
+
 int write_packetized_from_fd(int fd_in, int fd_out)
 {
        static char buf[LARGE_PACKET_DATA_MAX];
@@ -261,7 +277,7 @@ static int get_packet_data(int fd, char **src_buf, size_t *src_size,
        ssize_t ret;
 
        if (fd >= 0 && src_buf && *src_buf)
-               die("BUG: multiple sources given to packet_read");
+               BUG("multiple sources given to packet_read");
 
        /* Read up to "size" bytes from our source, whatever it is. */
        if (src_buf && *src_buf) {