Merge branch 'jk/http-push-symref-fix'

diff --git a/pkt-line.c b/pkt-line.c
index bc63b3b80e5b2853f920ba66fe977c7cc0921c78..187a2293e7d9a36ba294fe775efcf2b87f4e9233 100644 (file)
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -3,7 +3,7 @@
 
 char packet_buffer[LARGE_PACKET_MAX];
 static const char *packet_trace_prefix = "git";
-static const char trace_key[] = "GIT_TRACE_PACKET";
+static struct trace_key trace_packet = TRACE_KEY_INIT(PACKET);
 
 void packet_trace_identity(const char *prog)
 {
@@ -15,7 +15,7 @@ static void packet_trace(const char *buf, unsigned int len, int write)
        int i;
        struct strbuf out;
 
-       if (!trace_want(trace_key))
+       if (!trace_want(&trace_packet))
                return;
 
        /* +32 is just a guess for header + quoting */
@@ -27,7 +27,7 @@ static void packet_trace(const char *buf, unsigned int len, int write)
        if ((len >= 4 && starts_with(buf, "PACK")) ||
            (len >= 5 && starts_with(buf+1, "PACK"))) {
                strbuf_addstr(&out, "PACK ...");
-               unsetenv(trace_key);
+               trace_disable(&trace_packet);
        }
        else {
                /* XXX we should really handle printable utf8 */
@@ -43,7 +43,7 @@ static void packet_trace(const char *buf, unsigned int len, int write)
        }
 
        strbuf_addch(&out, '\n');
-       trace_strbuf(trace_key, &out);
+       trace_strbuf(&trace_packet, &out);
        strbuf_release(&out);
 }
 
@@ -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,