index-pack: work around thread-unsafe pread()

diff --git a/builtin/archive.c b/builtin/archive.c
index 9a1cfd3dac0123cb65d3db7597221a29e9010bd9..a1e3b940c25ac20927d4daefa417d5b626e38a24 100644 (file)
--- a/builtin/archive.c
+++ b/builtin/archive.c
@@ -27,8 +27,8 @@ static int run_remote_archiver(int argc, const char **argv,
                               const char *remote, const char *exec,
                               const char *name_hint)
 {
-       char buf[LARGE_PACKET_MAX];
-       int fd[2], i, len, rv;
+       char *buf;
+       int fd[2], i, rv;
        struct transport *transport;
        struct remote *_remote;
 
@@ -53,21 +53,18 @@ static int run_remote_archiver(int argc, const char **argv,
                packet_write(fd[1], "argument %s\n", argv[i]);
        packet_flush(fd[1]);
 
-       len = packet_read_line(fd[0], buf, sizeof(buf));
-       if (!len)
+       buf = packet_read_line(fd[0], NULL);
+       if (!buf)
                die(_("git archive: expected ACK/NAK, got EOF"));
-       if (buf[len-1] == '\n')
-               buf[--len] = 0;
        if (strcmp(buf, "ACK")) {
-               if (len > 5 && !prefixcmp(buf, "NACK "))
+               if (starts_with(buf, "NACK "))
                        die(_("git archive: NACK %s"), buf + 5);
-               if (len > 4 && !prefixcmp(buf, "ERR "))
+               if (starts_with(buf, "ERR "))
                        die(_("remote error: %s"), buf + 4);
                die(_("git archive: protocol error"));
        }
 
-       len = packet_read_line(fd[0], buf, sizeof(buf));
-       if (len)
+       if (packet_read_line(fd[0], NULL))
                die(_("git archive: expected a flush"));
 
        /* Now, start reading from fd[0] and spit it out to stdout */