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Diffstat (limited to 'nbd/client.c')
-rw-r--r--nbd/client.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/nbd/client.c b/nbd/client.c
index 4556056daa..f8c213bc96 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -914,11 +914,16 @@ ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request)
return nbd_write(ioc, buf, sizeof(buf), NULL);
}
-ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp)
+/* nbd_receive_reply
+ * Returns 1 on success
+ * 0 on eof, when no data was read (errp is not set)
+ * negative errno on failure (errp is set)
+ */
+int nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp)
{
uint8_t buf[NBD_REPLY_SIZE];
uint32_t magic;
- ssize_t ret;
+ int ret;
ret = nbd_read_eof(ioc, buf, sizeof(buf), errp);
if (ret <= 0) {
@@ -948,6 +953,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp)
error_setg(errp, "invalid magic (got 0x%" PRIx32 ")", magic);
return -EINVAL;
}
- return sizeof(buf);
+
+ return 1;
}