Merge branch 'ap/merge-stop-at-prepare-commit-msg-failure' into maint

[git-core/git.git] / sideband.c

diff --git a/sideband.c b/sideband.c
index 899b1ff..d5ffa1c 100644 (file)
--- a/sideband.c
+++ b/sideband.c
@@ -135,9 +135,14 @@ ssize_t send_sideband(int fd, int band, const char *data, ssize_t sz, int packet
                n = sz;
                if (packet_max - 5 < n)
                        n = packet_max - 5;
-               sprintf(hdr, "%04x", n + 5);
-               hdr[4] = band;
-               safe_write(fd, hdr, 5);
+               if (0 <= band) {
+                       sprintf(hdr, "%04x", n + 5);
+                       hdr[4] = band;
+                       safe_write(fd, hdr, 5);
+               } else {
+                       sprintf(hdr, "%04x", n + 4);
+                       safe_write(fd, hdr, 4);
+               }
                safe_write(fd, p, n);
                p += n;
                sz -= n;