diff options
| author | Bodo Möller <bodo@openssl.org> | 1999-09-27 13:43:59 +0000 |
|---|---|---|
| committer | Bodo Möller <bodo@openssl.org> | 1999-09-27 13:43:59 +0000 |
| commit | e405b8d120a10cedf2775bb1d3d9dab85c3dd0c1 (patch) | |
| tree | 67d2516f47f4103a57379c359e79cff8fa320279 /crypto | |
| parent | 6cc4ee03df4be25f3be44ae20bc8750b90c15705 (diff) | |
new control code BIO_C_RESET_READ_REQUEST
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/bio/bio.h | 2 | ||||
| -rw-r--r-- | crypto/bio/bss_bio.c | 14 |
2 files changed, 16 insertions, 0 deletions
diff --git a/crypto/bio/bio.h b/crypto/bio/bio.h index a05e0c2eac..d9a6f6913f 100644 --- a/crypto/bio/bio.h +++ b/crypto/bio/bio.h @@ -334,6 +334,7 @@ typedef struct bio_f_buffer_ctx_struct #define BIO_C_NREAD 144 #define BIO_C_NWRITE0 145 #define BIO_C_NWRITE 146 +#define BIO_C_RESET_READ_REQUEST 147 #define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,(char *)arg) @@ -470,6 +471,7 @@ size_t BIO_ctrl_wpending(BIO *b); #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) size_t BIO_ctrl_get_write_guarantee(BIO *b); size_t BIO_ctrl_get_read_request(BIO *b); +int BIO_ctrl_reset_read_request(BIO *b); #ifdef NO_STDIO #define NO_FP_API 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.) |