transport-helper: ask the helper to set progress and verbosity options after asking for its capabilities

diff --git a/pkt-line.c b/pkt-line.c
index 8bc89b1e0c0206647a8f5ee8da7727f304d14b2f..187a2293e7d9a36ba294fe775efcf2b87f4e9233 100644 (file)
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -64,44 +64,45 @@ void packet_buf_flush(struct strbuf *buf)
 }
 
 #define hex(a) (hexchar[(a) & 15])
-static char buffer[1000];
-static unsigned format_packet(const char *fmt, va_list args)
+static void format_packet(struct strbuf *out, const char *fmt, va_list args)
 {
        static char hexchar[] = "0123456789abcdef";
-       unsigned n;
+       size_t orig_len, n;
 
-       n = vsnprintf(buffer + 4, sizeof(buffer) - 4, fmt, args);
-       if (n >= sizeof(buffer)-4)
+       orig_len = out->len;
+       strbuf_addstr(out, "0000");
+       strbuf_vaddf(out, fmt, args);
+       n = out->len - orig_len;
+
+       if (n > LARGE_PACKET_MAX)
                die("protocol error: impossibly long line");
-       n += 4;
-       buffer[0] = hex(n >> 12);
-       buffer[1] = hex(n >> 8);
-       buffer[2] = hex(n >> 4);
-       buffer[3] = hex(n);
-       packet_trace(buffer+4, n-4, 1);
-       return n;
+
+       out->buf[orig_len + 0] = hex(n >> 12);
+       out->buf[orig_len + 1] = hex(n >> 8);
+       out->buf[orig_len + 2] = hex(n >> 4);
+       out->buf[orig_len + 3] = hex(n);
+       packet_trace(out->buf + orig_len + 4, n - 4, 1);
 }
 
 void packet_write(int fd, const char *fmt, ...)
 {
+       static struct strbuf buf = STRBUF_INIT;
        va_list args;
-       unsigned n;
 
+       strbuf_reset(&buf);
        va_start(args, fmt);
-       n = format_packet(fmt, args);
+       format_packet(&buf, fmt, args);
        va_end(args);
-       write_or_die(fd, buffer, n);
+       write_or_die(fd, buf.buf, buf.len);
 }
 
 void packet_buf_write(struct strbuf *buf, const char *fmt, ...)
 {
        va_list args;
-       unsigned n;
 
        va_start(args, fmt);
-       n = format_packet(fmt, args);
+       format_packet(buf, fmt, args);
        va_end(args);
-       strbuf_add(buf, buffer, n);
 }
 
 static int get_packet_data(int fd, char **src_buf, size_t *src_size,