openssl initial bio support (refs #77)

3 files changed, 168 insertions, 1 deletions

diff --git a/cryptography/bindings/openssl/api.py b/cryptography/bindings/openssl/api.py
index 19391c68..56381ae9 100644
--- a/cryptography/bindings/openssl/api.py
+++ b/cryptography/bindings/openssl/api.py
@@ -27,6 +27,7 @@ class API(object):
     _modules = [
         "bignum",
         "conf",
+        "bio",
         "crypto",
         "dh",
         "dsa",
diff --git a/cryptography/bindings/openssl/bio.py b/cryptography/bindings/openssl/bio.py
new file mode 100644
index 00000000..de5c6c74
--- /dev/null
+++ b/cryptography/bindings/openssl/bio.py
@@ -0,0 +1,167 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+INCLUDES = """
+#include <openssl/bio.h>
+"""
+
+TYPES = """
+typedef struct bio_st BIO;
+typedef void bio_info_cb(BIO *, int, const char *, int, long, long);
+struct bio_method_st {
+    int type;
+    const char * name;
+    int (*bwrite)(BIO *, const char *, int);
+    int (*bread)(BIO *, char *, int);
+    int (*bputs)(BIO *, const char *);
+    int (*bgets)(BIO *, char*, int);
+    long (*ctrl)(BIO *, int, long, void *);
+    int (*create)(BIO *);
+    int (*destroy)(BIO *);
+    long (*callback_ctrl)(BIO *, int, bio_info_cb *);
+    ...;
+};
+typedef struct bio_method_st BIO_METHOD;
+struct bio_st {
+    BIO_METHOD *method;
+    long (*callback)(struct bio_st*, int, const char*, int, long, long);
+    char *cb_arg;
+    int init;
+    int shutdown;
+    int flags;
+    int retry_reason;
+    int num;
+    void *ptr;
+    struct bio_st *next_bio;
+    struct bio_st *prev_bio;
+    int references;
+    unsigned long num_read;
+    unsigned long num_write;
+    ...;
+};
+typedef ... BUF_MEM;
+"""
+
+FUNCTIONS = """
+BIO* BIO_new(BIO_METHOD *);
+int BIO_set(BIO *a, BIO_METHOD *);
+int BIO_free(BIO *);
+void BIO_vfree(BIO *);
+void BIO_free_all(BIO *);
+BIO *BIO_push(BIO *, BIO *);
+BIO *BIO_pop(BIO *);
+BIO *BIO_next(BIO *);
+BIO *BIO_find_type(BIO *, int);
+int BIO_method_type(const BIO *b);
+BIO_METHOD *BIO_s_mem(void);
+BIO *BIO_new_mem_buf(void *buf, int len);
+BIO_METHOD *BIO_s_file(void);
+BIO *BIO_new_file(const char *filename, const char *mode);
+BIO *BIO_new_fp(FILE *stream, int flags);
+BIO_METHOD *BIO_s_fd(void);
+BIO *BIO_new_fd(int fd, int close_flag);
+BIO_METHOD *BIO_s_socket(void);
+BIO *BIO_new_socket(int sock, int close_flag);
+BIO_METHOD *BIO_s_null(void);
+long BIO_ctrl(BIO *, int, long, void *);
+long BIO_callback_ctrl(BIO *, int, void (*fp)(struct bio_st *, int,
+                       const char *, int, long, long));
+char* BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
+long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
+size_t BIO_ctrl_pending(BIO *b);
+size_t BIO_ctrl_wpending(BIO *b);
+int BIO_read(BIO *, void *, int);
+int BIO_gets(BIO *, char *, int);
+int BIO_write(BIO *, const void *, int);
+int BIO_puts(BIO *, const char *);
+BIO_METHOD *BIO_f_null();
+BIO_METHOD *BIO_f_buffer();
+"""
+
+MACROS = """
+long BIO_set_fd(BIO *, long, int);
+long BIO_get_fd(BIO *, char *);
+long BIO_set_mem_eof_return(BIO *, int);
+long BIO_get_mem_data(BIO *, char **);
+long BIO_set_mem_buf(BIO *, BUF_MEM *, int);
+long BIO_get_mem_ptr(BIO *, BUF_MEM **);
+long BIO_set_fp(BIO *, FILE *, int);
+long BIO_get_fp(BIO *, FILE **);
+int BIO_read_filename(BIO *, char *);
+int BIO_write_filename(BIO *, char *);
+int BIO_append_filename(BIO *, char *);
+int BIO_rw_filename(BIO *, char *);
+int BIO_should_read(BIO *);
+int BIO_should_write(BIO *);
+int BIO_should_io_special(BIO *);
+int BIO_retry_type(BIO *);
+int BIO_should_retry(BIO *);
+int BIO_reset(BIO *);
+int BIO_seek(BIO *, int);
+int BIO_tell(BIO *);
+int BIO_flush(BIO *);
+int BIO_eof(BIO *);
+int BIO_set_close(BIO *,long);
+int BIO_get_close(BIO *);
+int BIO_pending(BIO *);
+int BIO_wpending(BIO *);
+int BIO_get_info_callback(BIO *, bio_info_cb **);
+int BIO_set_info_callback(BIO *, bio_info_cb *);
+long BIO_get_buffer_num_lines(BIO *);
+long BIO_set_read_buffer_size(BIO *, long);
+long BIO_set_write_buffer_size(BIO *, long);
+long BIO_set_buffer_size(BIO *, long);
+long BIO_set_buffer_read_data(BIO *, void *, long);
+#define BIO_TYPE_MEM ...
+#define BIO_TYPE_FILE ...
+#define BIO_TYPE_FD ...
+#define BIO_TYPE_SOCKET ...
+#define BIO_TYPE_CONNECT ...
+#define BIO_TYPE_ACCEPT ...
+#define BIO_TYPE_NULL ...
+#define BIO_CLOSE ...
+#define BIO_NOCLOSE ...
+#define BIO_TYPE_SOURCE_SINK ...
+#define BIO_CTRL_RESET ...
+#define BIO_CTRL_EOF ...
+#define BIO_CTRL_SET ...
+#define BIO_CTRL_SET_CLOSE ...
+#define BIO_CTRL_FLUSH ...
+#define BIO_CTRL_DUP ...
+#define BIO_CTRL_GET_CLOSE ...
+#define BIO_CTRL_INFO ...
+#define BIO_CTRL_GET ...
+#define BIO_CTRL_PENDING ...
+#define BIO_CTRL_WPENDING ...
+#define BIO_C_FILE_SEEK ...
+#define BIO_C_FILE_TELL ...
+#define BIO_TYPE_NONE ...
+#define BIO_TYPE_PROXY_CLIENT ...
+#define BIO_TYPE_PROXY_SERVER ...
+#define BIO_TYPE_NBIO_TEST ...
+#define BIO_TYPE_BER ...
+#define BIO_TYPE_BIO ...
+#define BIO_TYPE_DESCRIPTOR ...
+#define BIO_FLAGS_READ ...
+#define BIO_FLAGS_WRITE ...
+#define BIO_FLAGS_IO_SPECIAL ...
+#define BIO_FLAGS_RWS ...
+#define BIO_FLAGS_SHOULD_RETRY ...
+#define BIO_TYPE_NULL_FILTER ...
+#define BIO_TYPE_SSL ...
+#define BIO_TYPE_MD ...
+#define BIO_TYPE_BUFFER ...
+#define BIO_TYPE_CIPHER ...
+#define BIO_TYPE_BASE64 ...
+#define BIO_TYPE_FILTER ...
+"""
diff --git a/cryptography/bindings/openssl/err.py b/cryptography/bindings/openssl/err.py
index c7d32492..ffb6096a 100644
--- a/cryptography/bindings/openssl/err.py
+++ b/cryptography/bindings/openssl/err.py
@@ -21,7 +21,6 @@ struct ERR_string_data_st {
     const char *string;
 };
 typedef struct ERR_string_data_st ERR_STRING_DATA;
-typedef ... BIO;
 """
 
 FUNCTIONS = """