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-rw-r--r--ssl/s3_srvr.c34
1 files changed, 14 insertions, 20 deletions
diff --git a/ssl/s3_srvr.c b/ssl/s3_srvr.c
index c8bed170b5..297f79fc1e 100644
--- a/ssl/s3_srvr.c
+++ b/ssl/s3_srvr.c
@@ -189,7 +189,6 @@ int ssl3_accept(SSL *s)
BUF_MEM *buf;
unsigned long alg_k,Time=(unsigned long)time(NULL);
void (*cb)(const SSL *ssl,int type,int val)=NULL;
- long num1;
int ret= -1;
int new_state,state,skip=0;
@@ -483,29 +482,24 @@ int ssl3_accept(SSL *s)
break;
case SSL3_ST_SW_FLUSH:
- /* number of bytes to be flushed */
- /* This originally and incorrectly called BIO_CTRL_INFO
- * The reason why this is wrong is mentioned in PR#1949.
- * Unfortunately, as suggested in that bug some
- * versions of Apache unconditionally return 0
- * for BIO_CTRL_WPENDING meaning we don't correctly
- * flush data and some operations, like renegotiation,
- * don't work. Other software may also be affected so
- * call BIO_CTRL_INFO to retain compatibility with
- * previous behaviour and BIO_CTRL_WPENDING if we
- * get zero to address the PR#1949 case.
+
+ /* This code originally checked to see if
+ * any data was pending using BIO_CTRL_INFO
+ * and then flushed. This caused problems
+ * as documented in PR#1939. The proposed
+ * fix doesn't completely resolve this issue
+ * as buggy implementations of BIO_CTRL_PENDING
+ * still exist. So instead we just flush
+ * unconditionally.
*/
- num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
- if (num1 == 0)
- num1=BIO_ctrl(s->wbio,BIO_CTRL_WPENDING,0,NULL);
- if (num1 > 0)
+ s->rwstate=SSL_WRITING;
+ if (BIO_flush(s->wbio) <= 0)
{
- s->rwstate=SSL_WRITING;
- num1=BIO_flush(s->wbio);
- if (num1 <= 0) { ret= -1; goto end; }
- s->rwstate=SSL_NOTHING;
+ ret= -1;
+ goto end;
}
+ s->rwstate=SSL_NOTHING;
s->state=s->s3->tmp.next_state;
break;