From: Mike Giancola <mikegiancola@gmail.com>
Date: Wed, 22 May 2013 21:42:33 +0000 (+0200)
Subject: ossl_recv: SSL_read() returning 0 is an error too
X-Git-Tag: curl-7_31_0~41
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=520833cbe1601feed1c6473bd28c4c894e7ee63e;p=curl

ossl_recv: SSL_read() returning 0 is an error too

SSL_read can return 0 for "not successful", according to the open SSL
documentation: http://www.openssl.org/docs/ssl/SSL_read.html
---

diff --git a/lib/ssluse.c b/lib/ssluse.c
index 80fa11957..36c38042a 100644
--- a/lib/ssluse.c
+++ b/lib/ssluse.c
@@ -2595,7 +2595,7 @@ static ssize_t ossl_recv(struct connectdata *conn, /* connection data */
 
   buffsize = (buffersize > (size_t)INT_MAX) ? INT_MAX : (int)buffersize;
   nread = (ssize_t)SSL_read(conn->ssl[num].handle, buf, buffsize);
-  if(nread < 0) {
+  if(nread <= 0) {
     /* failed SSL_read */
     int err = SSL_get_error(conn->ssl[num].handle, (int)nread);