These functions do not set errno so is possible that errno is EAGAIN.
This would cause an infinite loop in functions like
red_stream_write_all (or potentially using the event loop).

Signed-off-by: Frediano Ziglio <[email protected]>
---
 server/red-stream.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/server/red-stream.c b/server/red-stream.c
index f4637808c..3dbdfca82 100644
--- a/server/red-stream.c
+++ b/server/red-stream.c
@@ -596,6 +596,7 @@ static ssize_t red_stream_sasl_write(RedStream *s, const 
void *buf, size_t nbyte
                           &s->priv->sasl.encodedLength);
         if (err != SASL_OK) {
             spice_warning("sasl_encode error: %d", err);
+            errno = EIO;
             return -1;
         }
 
@@ -657,6 +658,7 @@ static ssize_t red_stream_sasl_read(RedStream *s, uint8_t 
*buf, size_t nbyte)
                       &decoded, &decodedlen);
     if (err != SASL_OK) {
         spice_warning("sasl_decode error: %d", err);
+        errno = EIO;
         return -1;
     }
 
-- 
2.14.3

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