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authorBodo Möller <bodo@openssl.org>1999-09-27 13:43:59 +0000
committerBodo Möller <bodo@openssl.org>1999-09-27 13:43:59 +0000
commite405b8d120a10cedf2775bb1d3d9dab85c3dd0c1 (patch)
tree67d2516f47f4103a57379c359e79cff8fa320279 /crypto/bio/bss_bio.c
parent6cc4ee03df4be25f3be44ae20bc8750b90c15705 (diff)
new control code BIO_C_RESET_READ_REQUEST
Diffstat (limited to 'crypto/bio/bss_bio.c')
-rw-r--r--crypto/bio/bss_bio.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/crypto/bio/bss_bio.c b/crypto/bio/bss_bio.c
index ef4b3454d7..40df575af9 100644
--- a/crypto/bio/bss_bio.c
+++ b/crypto/bio/bss_bio.c
@@ -493,6 +493,15 @@ static long bio_ctrl(BIO *bio, int cmd, long num, void *ptr)
ret = (long) b->request;
break;
+ case BIO_C_RESET_READ_REQUEST:
+ /* Reset request. (Can be useful after read attempts
+ * at the other side that are meant to be non-blocking,
+ * e.g. when probing SSL_read to see if any data is
+ * available.) */
+ b->request = 0;
+ ret = 1;
+ break;
+
case BIO_C_SHUTDOWN_WR:
/* similar to shutdown(..., SHUT_WR) */
b->closed = 1;
@@ -750,6 +759,11 @@ size_t BIO_ctrl_get_read_request(BIO *bio)
return BIO_ctrl(bio, BIO_C_GET_READ_REQUEST, 0, NULL);
}
+int BIO_ctrl_reset_read_request(BIO *bio)
+ {
+ return (BIO_ctrl(bio, BIO_C_RESET_READ_REQUEST, 0, NULL) != 0);
+ }
+
/* BIO_nread0/nread/nwrite0/nwrite are availabe only for BIO pairs for now
* (conceivably some other BIOs could allow non-copying reads and writes too.)