diff --git a/sideband.c b/sideband.c
index 899b1ff36619d0077dced9da77f538ab98396a83..d5ffa1c8919a6db750606c78a1b44d8618fa35a5 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;
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;
safe_write(fd, p, n);
p += n;
sz -= n;