Initial commit. Migrates over basic project files, and the OpenSSL bindings

from OpenTLS.

20 files changed, 932 insertions, 0 deletions

diff --git a/cryptography/c/__init__.py b/cryptography/c/__init__.py
new file mode 100644
index 00000000..07927848
--- /dev/null
+++ b/cryptography/c/__init__.py
@@ -0,0 +1,4 @@
+from cryptography.c.api import api
+
+
+__all__ = ["api"]
diff --git a/cryptography/c/api.py b/cryptography/c/api.py
new file mode 100644
index 00000000..f33ddda9
--- /dev/null
+++ b/cryptography/c/api.py
@@ -0,0 +1,153 @@
+from __future__ import absolute_import, division, print_function
+
+import atexit
+from collections import namedtuple
+
+from cffi import FFI
+
+
+class API(object):
+    """OpenSSL API wrapper."""
+
+    SSLVersion = namedtuple('SSLVersion',
+        ['major', 'minor', 'fix', 'patch', 'status']
+    )
+
+    _modules = [
+        'asn1',
+        'bio',
+        'bio_filter',
+        'bio_sink',
+        'err',
+        'evp',
+        'evp_md',
+        'evp_cipher',
+        'evp_cipher_listing',
+        'hmac',
+        'obj',
+        'openssl',
+        'nid',
+        'pkcs5',
+        'rand',
+        'ssl',
+        'ssleay',
+        'stdio',
+    ]
+
+    def __init__(self):
+        self.ffi = FFI()
+        self.INCLUDES = []
+        self.TYPES = []
+        self.FUNCTIONS = []
+        self.C_CUSTOMIZATION = []
+        self.OVERRIDES = []
+        self.SETUP = []
+        self.TEARDOWN = []
+        self._import()
+        self._define()
+        self._verify()
+        self._override()
+        self._populate()
+        self._initialise()
+
+    def _import(self):
+        "import all library definitions"
+        for name in self._modules:
+            module = __import__(__name__ + '.' + name, fromlist=['*'])
+            self._import_definitions(module, 'INCLUDES')
+            self._import_definitions(module, 'TYPES')
+            self._import_definitions(module, 'FUNCTIONS')
+            self._import_definitions(module, 'C_CUSTOMIZATION')
+            self._import_definitions(module, 'OVERRIDES')
+            self._import_definitions(module, 'SETUP')
+            self._import_definitions(module, 'TEARDOWN')
+
+    def _import_definitions(self, module, name):
+        "import defintions named definitions from module"
+        container = getattr(self, name)
+        for definition in getattr(module, name, ()):
+            if definition not in container:
+                container.append(definition)
+
+    def _define(self):
+        "parse function definitions"
+        for typedef in self.TYPES:
+            self.ffi.cdef(typedef)
+        for function in self.FUNCTIONS:
+            self.ffi.cdef(function)
+
+    def _verify(self):
+        "load openssl, create function attributes"
+        self.openssl = self.ffi.verify(
+            source="\n".join(self.INCLUDES + self.C_CUSTOMIZATION),
+            # ext_package must agree with the value in setup.py
+            ext_package="tls",
+            extra_compile_args=[
+                '-Wno-deprecated-declarations',
+            ],
+            libraries=['ssl']
+        )
+
+    def _override(self):
+        """
+        Create any Python-level overrides of the cffi-based wrappers.
+        """
+        self._overrides = {}
+        for func in self.OVERRIDES:
+            name = func.__name__
+            from_openssl = getattr(self.openssl, name)
+            override = func(self.openssl, from_openssl)
+            self._overrides[name] = override
+
+    def _populate(self):
+        """
+        Bind some aliases for FFI APIs on self.
+        """
+        self.NULL = self.ffi.NULL
+        self.buffer = self.ffi.buffer
+        self.callback = self.ffi.callback
+        self.cast = self.ffi.cast
+        self.new = self.ffi.new
+        self.gc = self.ffi.gc
+        self.string = self.ffi.string
+
+    def __getattr__(self, name):
+        """
+        Try to resolve any attribute that does not exist on self as an
+        attribute of the OpenSSL FFI object (in other words, as an OpenSSL
+        API).
+        """
+        return self._overrides.get(name, getattr(self.openssl, name))
+
+    def _initialise(self):
+        "initialise openssl, schedule cleanup at exit"
+        for function in self.SETUP:
+            getattr(self, function)()
+        for function in self.TEARDOWN:
+            atexit.register(getattr(self, function))
+
+    def version_info(self):
+        "Return SSL version information"
+        version = self.SSLeay()
+        major = version >> (7 * 4) & 0xFF
+        minor = version >> (5 * 4) & 0xFF
+        fix = version >> (3 * 4) & 0xFF
+        patch = version >> (1 * 4) & 0xFF
+        patch = '' if not patch else chr(96 + patch)
+        status = version & 0x0F
+        if status == 0x0F:
+            status = 'release'
+        elif status == 0x00:
+            status = 'dev'
+        else:
+            status = 'beta{}'.format(status)
+        return self.SSLVersion(major, minor, fix, patch, status)
+
+    def version(self, detail=None):
+        "Return SSL version string"
+        detail = self.SSLEAY_VERSION if detail is None else detail
+        buff = self.SSLeay_version(detail)
+        return self.string(buff)
+
+
+api = API()
diff --git a/cryptography/c/asn1.py b/cryptography/c/asn1.py
new file mode 100644
index 00000000..1979f85d
--- /dev/null
+++ b/cryptography/c/asn1.py
@@ -0,0 +1,43 @@
+INCLUDES = [
+    '#include <openssl/asn1.h>',
+]
+
+TYPES = [
+    'typedef ... ASN1_INTEGER;',
+    'typedef ... ASN1_OCTET_STRING;',
+    'typedef ... ASN1_OBJECT;',
+    'typedef ... ASN1_STRING;',
+    'typedef ... ASN1_TYPE;',
+]
+
+FUNCTIONS = [
+    'ASN1_OBJECT *ASN1_OBJECT_new(void);',
+    'void ASN1_OBJECT_free(ASN1_OBJECT *a);',
+    # ASN1 OBJECT IDENTIFIER
+    'ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, long length);',
+    'int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp);',
+    # ASN1 STRING
+    'ASN1_STRING * ASN1_STRING_new(void);',
+    'ASN1_STRING * ASN1_STRING_type_new(int type);',
+    'void ASN1_STRING_free(ASN1_STRING *a);',
+    'int ASN1_STRING_length(ASN1_STRING *x);',
+    'unsigned char * ASN1_STRING_data(ASN1_STRING *x);',
+    'ASN1_STRING * ASN1_STRING_dup(ASN1_STRING *a);',
+    'int ASN1_STRING_cmp(ASN1_STRING *a, ASN1_STRING *b);',
+    'int ASN1_STRING_set(ASN1_STRING *str, const void *data, int len);',
+    'int ASN1_STRING_type(ASN1_STRING *x);',
+    'int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in);',
+    # ASN1 OCTET STRING
+    'ASN1_OCTET_STRING * ASN1_OCTET_STRING_new(void);',
+    'void ASN1_OCTET_STRING_free(ASN1_OCTET_STRING *a);',
+    'ASN1_OCTET_STRING * ASN1_OCTET_STRING_dup(ASN1_OCTET_STRING *a);',
+    'int ASN1_OCTET_STRING_cmp(ASN1_OCTET_STRING *a, ASN1_OCTET_STRING *b);',
+    'int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *str, const void *data, int len);',
+    # ASN1 INTEGER
+    'ASN1_INTEGER * ASN1_INTEGER_new(void);',
+    'void ASN1_INTEGER_free(ASN1_INTEGER *a);',
+    'ASN1_INTEGER * ASN1_INTEGER_dup(ASN1_INTEGER *a);',
+    'int ASN1_INTEGER_cmp(ASN1_INTEGER *a, ASN1_INTEGER *b);',
+    'int ASN1_INTEGER_set(ASN1_INTEGER *a, long v);',
+    'long ASN1_INTEGER_get(ASN1_INTEGER *a);',
+]
diff --git a/cryptography/c/bio.py b/cryptography/c/bio.py
new file mode 100644
index 00000000..ea1f936e
--- /dev/null
+++ b/cryptography/c/bio.py
@@ -0,0 +1,118 @@
+INCLUDES = [
+    '#include <openssl/bio.h>',
+]
+
+TYPES = [
+    # BIO ctrl constants
+    'static const int BIO_CTRL_RESET;',
+    'static const int BIO_CTRL_EOF;',
+    'static const int BIO_CTRL_SET;',
+    'static const int BIO_CTRL_SET_CLOSE;',
+    'static const int BIO_CTRL_FLUSH;',
+    'static const int BIO_CTRL_DUP;',
+    'static const int BIO_CTRL_GET_CLOSE;',
+    'static const int BIO_CTRL_INFO;',
+    'static const int BIO_CTRL_GET;',
+    'static const int BIO_CTRL_PENDING;',
+    'static const int BIO_CTRL_WPENDING;',
+    'static const int BIO_C_FILE_SEEK;',
+    'static const int BIO_C_FILE_TELL;',
+    # BIO type constants
+    'static const int BIO_TYPE_NONE;',
+    'static const int BIO_TYPE_PROXY_CLIENT;',
+    'static const int BIO_TYPE_PROXY_SERVER;',
+    'static const int BIO_TYPE_NBIO_TEST;',
+    'static const int BIO_TYPE_BER;',
+    'static const int BIO_TYPE_BIO;',
+    'static const int BIO_TYPE_DESCRIPTOR;',
+    # BIO flags
+    'static const int BIO_FLAGS_READ;',
+    'static const int BIO_FLAGS_WRITE;',
+    'static const int BIO_FLAGS_IO_SPECIAL;',
+    'static const int BIO_FLAGS_RWS;',
+    'static const int BIO_FLAGS_SHOULD_RETRY;',
+    'typedef ... BUF_MEM;',
+    # BIO forward declaration
+    'typedef struct bio_st BIO;',
+    # BIO callbacks definition
+    'typedef void bio_info_cb(BIO *b, int oper, const char *ptr, int arg1, long arg2, long arg3);',
+    # BIO_METHOD definition
+    '''
+    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;',
+    # BIO definition
+    '''
+    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;
+        ...;
+    };''',
+]
+
+FUNCTIONS = [
+    # BIO create functions
+    'BIO* BIO_new(BIO_METHOD *type);',
+    'int BIO_set(BIO *a, BIO_METHOD *type);',
+    'int BIO_free(BIO *a);',
+    'void BIO_vfree(BIO *a);',
+    'void BIO_free_all(BIO *a);',
+    # BIO stacking functions
+    'BIO* BIO_push(BIO *b, BIO *append);',
+    'BIO* BIO_pop(BIO *b);',
+    'BIO* BIO_next(BIO *b);',
+    'BIO* BIO_find_type(BIO *b, int bio_type);',
+    'int BIO_method_type(BIO *b);',
+    # BIO control functions
+    'long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);',
+    'long BIO_callback_ctrl(BIO *b, int cmd, 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);',
+    'int BIO_reset(BIO *b);',
+    'int BIO_seek(BIO *b, int ofs);',
+    'int BIO_tell(BIO *b);',
+    'int BIO_flush(BIO *b);',
+    'int BIO_eof(BIO *b);',
+    'int BIO_set_close(BIO *b,long flag);',
+    'int BIO_get_close(BIO *b);',
+    'int BIO_pending(BIO *b);',
+    'int BIO_wpending(BIO *b);',
+    'size_t BIO_ctrl_pending(BIO *b);',
+    'size_t BIO_ctrl_wpending(BIO *b);',
+    'int BIO_get_info_callback(BIO *b,bio_info_cb **cbp);',
+    'int BIO_set_info_callback(BIO *b,bio_info_cb *cb);',
+    # BIO IO functions
+    'int BIO_read(BIO *b, void *buf, int len);',
+    'int BIO_gets(BIO *b, char *buf, int size);',
+    'int BIO_write(BIO *b, const void *buf, int len);',
+    'int BIO_puts(BIO *b, const char *buf);',
+    # BIO should functions
+    'int BIO_should_read(BIO *b);',
+    'int BIO_should_write(BIO *b);',
+    'int BIO_should_io_special(BIO *b);',
+    'int BIO_retry_type(BIO *b);',
+    'int BIO_should_retry(BIO *b);',
+]
diff --git a/cryptography/c/bio_filter.py b/cryptography/c/bio_filter.py
new file mode 100644
index 00000000..a29d8d8c
--- /dev/null
+++ b/cryptography/c/bio_filter.py
@@ -0,0 +1,42 @@
+INCLUDES = [
+    '#include <openssl/bio.h>',
+]
+
+TYPES = [
+    'static const int BIO_TYPE_NULL_FILTER;',
+    'static const int BIO_TYPE_SSL;',
+    'static const int BIO_TYPE_MD;',
+    'static const int BIO_TYPE_BUFFER;',
+    'static const int BIO_TYPE_CIPHER;',
+    'static const int BIO_TYPE_BASE64;',
+    'static const int BIO_TYPE_FILTER;',
+]
+
+FUNCTIONS = [
+    # BIO null
+    'BIO_METHOD *BIO_f_null(void);',
+    # BIO ssl
+    # TODO
+    # BIO message digests
+    'BIO_METHOD *BIO_f_md(void);',
+    'int BIO_set_md(BIO *b, EVP_MD *md);',
+    'int BIO_get_md(BIO *b, EVP_MD **mdp);',
+    'int BIO_set_md_ctx(BIO *b, EVP_MD_CTX **mdcp);',
+    'int BIO_get_md_ctx(BIO *b, EVP_MD_CTX **mdcp);',
+    # BIO buffer
+    'BIO_METHOD * BIO_f_buffer(void);',
+    'long BIO_get_buffer_num_lines(BIO *b);',
+    'long BIO_set_read_buffer_size(BIO *b, long size);',
+    'long BIO_set_write_buffer_size(BIO *b, long size);',
+    'long BIO_set_buffer_size(BIO *b, long size);',
+    'long BIO_set_buffer_read_data(BIO *b, void *buf, long num);',
+    # BIO cipher
+    'BIO_METHOD *   BIO_f_cipher(void);',
+    'void BIO_set_cipher(BIO *b,const EVP_CIPHER *cipher, unsigned char *key, unsigned char *iv, int enc);',
+    'int BIO_get_cipher_status(BIO *b);',
+    'int BIO_get_cipher_ctx(BIO *b, EVP_CIPHER_CTX **pctx);',
+    # BIO base64
+    'BIO_METHOD *BIO_f_base64(void);',
+    # BIO zlib
+#   'BIO_METHOD *BIO_f_zlib(void);',
+]
diff --git a/cryptography/c/bio_sink.py b/cryptography/c/bio_sink.py
new file mode 100644
index 00000000..578d7a95
--- /dev/null
+++ b/cryptography/c/bio_sink.py
@@ -0,0 +1,50 @@
+INCLUDES = [
+    '#include <openssl/bio.h>',
+]
+
+TYPES = [
+    'static const int BIO_TYPE_MEM;',
+    'static const int BIO_TYPE_FILE;',
+    'static const int BIO_TYPE_FD;',
+    'static const int BIO_TYPE_SOCKET;',
+    'static const int BIO_TYPE_CONNECT;',
+    'static const int BIO_TYPE_ACCEPT;',
+    'static const int BIO_TYPE_NULL;',
+    'static const int BIO_CLOSE;',
+    'static const int BIO_NOCLOSE;',
+    'static const int BIO_TYPE_SOURCE_SINK;',
+]
+
+FUNCTIONS = [
+    # BIO mem buffers
+    'BIO_METHOD *BIO_s_mem(void);',
+    'long BIO_set_mem_eof_return(BIO *b, int v);',
+    'long BIO_get_mem_data(BIO *b, char **pp);',
+    'long BIO_set_mem_buf(BIO *b,BUF_MEM *bm,int c);',
+    'long BIO_get_mem_ptr(BIO *b,BUF_MEM **pp);',
+    'BIO *BIO_new_mem_buf(void *buf, int len);',
+    # BIO files
+    'BIO_METHOD *BIO_s_file(void);',
+    'BIO *BIO_new_file(const char *filename, const char *mode);',
+    'BIO *BIO_new_fp(FILE *stream, int flags);',
+    'long BIO_set_fp(BIO *b, FILE *fp, int flags);',
+    'long BIO_get_fp(BIO *b, FILE **fpp);',
+    'int BIO_read_filename(BIO *b, char *name);',
+    'int BIO_write_filename(BIO *b, char *name);',
+    'int BIO_append_filename(BIO *b, char *name);',
+    'int BIO_rw_filename(BIO *b, char *name);',
+    # BIO fd
+    'BIO_METHOD *BIO_s_fd(void);',
+    'long BIO_set_fd(BIO *bp, long fd, int cmd);',
+    'long BIO_get_fd(BIO *bp, char *c);',
+    'BIO *BIO_new_fd(int fd, int close_flag);',
+    # BIO socket
+    'BIO_METHOD *BIO_s_socket(void);'
+    'BIO *BIO_new_socket(int sock, int close_flag);'
+    # BIO connect
+    # TODO
+    # BIO accept
+    # TODO
+    # BIO null
+    'BIO_METHOD *BIO_s_null(void);',
+]
diff --git a/cryptography/c/err.py b/cryptography/c/err.py
new file mode 100644
index 00000000..b59ece93
--- /dev/null
+++ b/cryptography/c/err.py
@@ -0,0 +1,47 @@
+INCLUDES = [
+    '#include <openssl/err.h>',
+    '#include <openssl/ssl.h>',
+]
+
+SETUP = [
+    'SSL_load_error_strings',
+]
+
+TEARDOWN = [
+    'ERR_free_strings',
+]
+
+TYPES = [
+'struct ERR_string_data_st { unsigned long error; const char *string; };',
+'typedef struct ERR_string_data_st ERR_STRING_DATA;',
+]
+
+FUNCTIONS = [
+    'void ERR_load_crypto_strings(void);',
+    'void ERR_free_strings(void);',
+    'void SSL_load_error_strings(void);',
+    'char* ERR_error_string(unsigned long e, char *buf);',
+    'void ERR_error_string_n(unsigned long e, char *buf, size_t len);',
+    'const char* ERR_lib_error_string(unsigned long e);',
+    'const char* ERR_func_error_string(unsigned long e);',
+    'const char* ERR_reason_error_string(unsigned long e);',
+    'void ERR_print_errors(BIO *bp);',
+    'void ERR_print_errors_fp(FILE *fp);',
+    'unsigned long ERR_get_error(void);',
+    'unsigned long ERR_peek_error(void);',
+    'unsigned long ERR_peek_last_error(void);',
+    'unsigned long ERR_get_error_line(const char **file, int *line);',
+    'unsigned long ERR_peek_error_line(const char **file, int *line);',
+    'unsigned long ERR_peek_last_error_line(const char **file, int *line);',
+    'unsigned long ERR_get_error_line_data(const char **file, int *line, const char **data, int *flags);',
+    'unsigned long ERR_peek_error_line_data(const char **file, int *line, const char **data, int *flags);',
+    'unsigned long ERR_peek_last_error_line_data(const char **file, int *line, const char **data, int *flags);',
+    'void ERR_put_error(int lib, int func, int reason, const char *file, int line);',
+    'void ERR_add_error_data(int num, ...);',
+    'void ERR_load_strings(int lib, ERR_STRING_DATA str[]);',
+    'int ERR_get_next_error_library(void);',
+    'unsigned long ERR_PACK(int lib, int func, int reason);',
+    'int ERR_GET_LIB(unsigned long e);',
+    'int ERR_GET_FUNC(unsigned long e);',
+    'int ERR_GET_REASON(unsigned long e);',
+]
diff --git a/cryptography/c/evp.py b/cryptography/c/evp.py
new file mode 100644
index 00000000..a063a222
--- /dev/null
+++ b/cryptography/c/evp.py
@@ -0,0 +1,11 @@
+INCLUDES = [
+    '#include "openssl/evp.h"',
+]
+
+TEARDOWN = [
+    'EVP_cleanup',
+]
+
+TYPES = [
+    'typedef ... ENGINE;',
+]
diff --git a/cryptography/c/evp_cipher.py b/cryptography/c/evp_cipher.py
new file mode 100644
index 00000000..4e6ae729
--- /dev/null
+++ b/cryptography/c/evp_cipher.py
@@ -0,0 +1,68 @@
+INCLUDES = [
+    '#include "openssl/evp.h"',
+]
+
+TYPES = [
+    'static const int EVP_CIPH_ECB_MODE;',
+    'static const int EVP_CIPH_CBC_MODE;',
+    'static const int EVP_CIPH_CFB_MODE;',
+    'static const int EVP_CIPH_OFB_MODE;',
+    'static const int EVP_CIPH_STREAM_CIPHER;',
+    'struct evp_cipher_ctx_st { ...; };',
+    'typedef ... EVP_CIPHER;',
+    'typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX;',
+]
+
+FUNCTIONS = [
+    'void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);',
+    # encrypt_ex
+    'int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, ENGINE *impl, unsigned char *key, unsigned char *iv);',
+    'int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, unsigned char *in, int inl);',
+    'int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);',
+    # decrypt_ex
+    'int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, ENGINE *impl, unsigned char *key, unsigned char *iv);',
+    'int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, unsigned char *in, int inl);',
+    'int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);',
+    # cipher_ex
+    'int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, ENGINE *impl, unsigned char *key, unsigned char *iv, int enc);',
+    'int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, unsigned char *in, int inl);',
+    'int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);',
+    # encrypt
+    'int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, unsigned char *key, unsigned char *iv);',
+    'int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);',
+    # decrypt
+    'int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, unsigned char *key, unsigned char *iv);',
+    'int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);',
+    # cipher
+    'int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, unsigned char *key, unsigned char *iv, int enc);',
+    'int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);',
+    # control
+    'int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *x, int padding);',
+    'int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);',
+    'int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);',
+    'int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);',
+    'const EVP_CIPHER *EVP_get_cipherbyname(const char *name);',
+    # cipher macros
+    'const EVP_CIPHER *EVP_get_cipherbynid(int n);',
+    'const EVP_CIPHER *EVP_get_cipherbyobj(const ASN1_OBJECT *o);',
+    'int EVP_CIPHER_nid(const EVP_CIPHER *cipher);',
+    'int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);',
+    'int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);',
+    'int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);',
+    'unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);',
+    'unsigned long EVP_CIPHER_mode(const EVP_CIPHER *cipher);',
+    'int EVP_CIPHER_type(const EVP_CIPHER *ctx);',
+    # ctx macros
+    'const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);',
+    'int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);',
+    'int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);',
+    'int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);',
+    'int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);',
+    'void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);',
+    'void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);',
+    'int EVP_CIPHER_CTX_type(const EVP_CIPHER_CTX *ctx);',
+    'unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx);',
+    'unsigned long EVP_CIPHER_CTX_mode(const EVP_CIPHER_CTX *ctx);',
+    'int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);',
+    'int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);',
+]
diff --git a/cryptography/c/evp_cipher_listing.py b/cryptography/c/evp_cipher_listing.py
new file mode 100644
index 00000000..5a0812c2
--- /dev/null
+++ b/cryptography/c/evp_cipher_listing.py
@@ -0,0 +1,82 @@
+INCLUDES = [
+    '#include "openssl/evp.h"',
+]
+
+FUNCTIONS = [
+    'const EVP_CIPHER *EVP_enc_null(void);',
+    'const EVP_CIPHER *EVP_des_ecb(void);',
+    'const EVP_CIPHER *EVP_des_ede(void);',
+    'const EVP_CIPHER *EVP_des_ede3(void);',
+    'const EVP_CIPHER *EVP_des_ede_ecb(void);',
+    'const EVP_CIPHER *EVP_des_ede3_ecb(void);',
+    'const EVP_CIPHER *EVP_des_cfb64(void);',
+    'const EVP_CIPHER *EVP_des_cfb1(void);',
+    'const EVP_CIPHER *EVP_des_cfb8(void);',
+    'const EVP_CIPHER *EVP_des_ede_cfb64(void);',
+    'const EVP_CIPHER *EVP_des_ede3_cfb64(void);',
+    'const EVP_CIPHER *EVP_des_ede3_cfb1(void);',
+    'const EVP_CIPHER *EVP_des_ede3_cfb8(void);',
+    'const EVP_CIPHER *EVP_des_ofb(void);',
+    'const EVP_CIPHER *EVP_des_ede_ofb(void);',
+    'const EVP_CIPHER *EVP_des_ede3_ofb(void);',
+    'const EVP_CIPHER *EVP_des_cbc(void);',
+    'const EVP_CIPHER *EVP_des_ede_cbc(void);',
+    'const EVP_CIPHER *EVP_des_ede3_cbc(void);',
+    'const EVP_CIPHER *EVP_desx_cbc(void);',
+    'const EVP_CIPHER *EVP_rc4(void);',
+    'const EVP_CIPHER *EVP_rc4_40(void);',
+    'const EVP_CIPHER *EVP_rc2_ecb(void);',
+    'const EVP_CIPHER *EVP_rc2_cbc(void);',
+    'const EVP_CIPHER *EVP_rc2_40_cbc(void);',
+    'const EVP_CIPHER *EVP_rc2_64_cbc(void);',
+    'const EVP_CIPHER *EVP_rc2_cfb64(void);',
+    'const EVP_CIPHER *EVP_rc2_ofb(void);',
+    'const EVP_CIPHER *EVP_bf_ecb(void);',
+    'const EVP_CIPHER *EVP_bf_cbc(void);',
+    'const EVP_CIPHER *EVP_bf_cfb64(void);',
+    'const EVP_CIPHER *EVP_bf_ofb(void);',
+    'const EVP_CIPHER *EVP_cast5_ecb(void);',
+    'const EVP_CIPHER *EVP_cast5_cbc(void);',
+    'const EVP_CIPHER *EVP_cast5_cfb64(void);',
+    'const EVP_CIPHER *EVP_cast5_ofb(void);',
+#   'const EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);',
+#   'const EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);',
+#   'const EVP_CIPHER *EVP_rc5_32_12_16_cfb64(void);',
+#   'const EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);',
+    'const EVP_CIPHER *EVP_aes_128_ecb(void);',
+    'const EVP_CIPHER *EVP_aes_128_cbc(void);',
+    'const EVP_CIPHER *EVP_aes_128_cfb1(void);',
+    'const EVP_CIPHER *EVP_aes_128_cfb8(void);',
+    'const EVP_CIPHER *EVP_aes_128_cfb128(void);',
+    'const EVP_CIPHER *EVP_aes_128_ofb(void);',
+    'const EVP_CIPHER *EVP_aes_192_ecb(void);',
+    'const EVP_CIPHER *EVP_aes_192_cbc(void);',
+    'const EVP_CIPHER *EVP_aes_192_cfb1(void);',
+    'const EVP_CIPHER *EVP_aes_192_cfb8(void);',
+    'const EVP_CIPHER *EVP_aes_192_cfb128(void);',
+    'const EVP_CIPHER *EVP_aes_192_ofb(void);',
+    'const EVP_CIPHER *EVP_aes_256_ecb(void);',
+    'const EVP_CIPHER *EVP_aes_256_cbc(void);',
+    'const EVP_CIPHER *EVP_aes_256_cfb1(void);',
+    'const EVP_CIPHER *EVP_aes_256_cfb8(void);',
+    'const EVP_CIPHER *EVP_aes_256_cfb128(void);',
+    'const EVP_CIPHER *EVP_aes_256_ofb(void);',
+#   'const EVP_CIPHER *EVP_camellia_128_ecb(void);',
+#   'const EVP_CIPHER *EVP_camellia_128_cbc(void);',
+#   'const EVP_CIPHER *EVP_camellia_128_cfb1(void);',
+#   'const EVP_CIPHER *EVP_camellia_128_cfb8(void);',
+#   'const EVP_CIPHER *EVP_camellia_128_cfb128(void);',
+#   'const EVP_CIPHER *EVP_camellia_128_ofb(void);',
+#   'const EVP_CIPHER *EVP_camellia_192_ecb(void);',
+#   'const EVP_CIPHER *EVP_camellia_192_cbc(void);',
+#   'const EVP_CIPHER *EVP_camellia_192_cfb1(void);',
+#   'const EVP_CIPHER *EVP_camellia_192_cfb8(void);',
+#   'const EVP_CIPHER *EVP_camellia_192_cfb128(void);',
+#   'const EVP_CIPHER *EVP_camellia_192_ofb(void);',
+#   'const EVP_CIPHER *EVP_camellia_256_ecb(void);',
+#   'const EVP_CIPHER *EVP_camellia_256_cbc(void);',
+#   'const EVP_CIPHER *EVP_camellia_256_cfb1(void);',
+#   'const EVP_CIPHER *EVP_camellia_256_cfb8(void);',
+#   'const EVP_CIPHER *EVP_camellia_256_cfb128(void);',
+#   'const EVP_CIPHER *EVP_camellia_256_ofb(void);',
+]
diff --git a/cryptography/c/evp_md.py b/cryptography/c/evp_md.py
new file mode 100644
index 00000000..ce3583e5
--- /dev/null
+++ b/cryptography/c/evp_md.py
@@ -0,0 +1,56 @@
+INCLUDES = [
+    '#include "openssl/evp.h"',
+]
+
+TYPES = [
+    'static const int EVP_MAX_MD_SIZE;',
+    'static const int EVP_MAX_KEY_LENGTH;',
+    'static const int EVP_MAX_IV_LENGTH;',
+    'static const int EVP_MAX_BLOCK_LENGTH;',
+    'struct env_md_ctx_st { ...; };',
+    'typedef ... EVP_MD;',
+    'typedef struct env_md_ctx_st EVP_MD_CTX;',
+]
+
+FUNCTIONS = [
+    'void EVP_cleanup(void);',
+    'void EVP_MD_CTX_init(EVP_MD_CTX *ctx);',
+    'EVP_MD_CTX *EVP_MD_CTX_create(void);',
+    'int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);',
+    'int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, size_t cnt);',
+    'int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);',
+    'int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);',
+    'void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);',
+    'int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out,const EVP_MD_CTX *in);',
+    'int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);',
+    'int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);',
+    'int EVP_MD_CTX_copy(EVP_MD_CTX *out,EVP_MD_CTX *in);',
+    'const EVP_MD *EVP_get_digestbyname(const char *name);',
+    'const EVP_MD *EVP_get_digestbynid(int n);',
+    'const EVP_MD *EVP_get_digestbyobj(const ASN1_OBJECT *o);',
+    'const EVP_MD *EVP_md_null(void);',
+#   'const EVP_MD *EVP_md2(void);',
+    'const EVP_MD *EVP_md4(void);',
+    'const EVP_MD *EVP_md5(void);',
+    'const EVP_MD *EVP_sha(void);',
+    'const EVP_MD *EVP_sha1(void);',
+    'const EVP_MD *EVP_dss(void);',
+    'const EVP_MD *EVP_dss1(void);',
+    'const EVP_MD *EVP_ecdsa(void);',
+    'const EVP_MD *EVP_sha224(void);',
+    'const EVP_MD *EVP_sha256(void);',
+    'const EVP_MD *EVP_sha384(void);',
+    'const EVP_MD *EVP_sha512(void);',
+#   'const EVP_MD *EVP_mdc(void);',
+    'const EVP_MD *EVP_ripemd160(void);',
+#   'const EVP_MD *EVP_dsa_sha(void);',
+#   'const EVP_MD *EVP_dsa_sha1(void);',
+    'int EVP_MD_type(const EVP_MD *md);',
+    'int EVP_MD_pkey_type(const EVP_MD *md);',
+    'int EVP_MD_size(const EVP_MD *md);',
+    'int EVP_MD_block_size(const EVP_MD *md);',
+    'const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);',
+    'int EVP_MD_CTX_size(const EVP_MD_CTX *ctx);',
+    'int EVP_MD_CTX_block_size(const EVP_MD_CTX *ctx);',
+    'int EVP_MD_CTX_type(const EVP_MD_CTX *ctx);',
+]
diff --git a/cryptography/c/hmac.py b/cryptography/c/hmac.py
new file mode 100644
index 00000000..aec734a8
--- /dev/null
+++ b/cryptography/c/hmac.py
@@ -0,0 +1,21 @@
+INCLUDES = [
+    '#include <openssl/hmac.h>',
+]
+
+TYPES = [
+    'struct hmac_ctx_st { ...; };',
+    'typedef struct hmac_ctx_st HMAC_CTX;',
+]
+
+FUNCTIONS = [
+    'unsigned char *HMAC(const EVP_MD *evp_md, const void *key,'
+        'int key_len, const unsigned char *d, int n,'
+        'unsigned char *md, unsigned int *md_len);',
+    'void HMAC_CTX_init(HMAC_CTX *ctx);',
+    'void HMAC_Init(HMAC_CTX *ctx, const void *key, int key_len, const EVP_MD *md);',
+    'void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int key_len, const EVP_MD *md, ENGINE *impl);',
+    'void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, int len);',
+    'void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len);',
+    'void HMAC_CTX_cleanup(HMAC_CTX *ctx);',
+    'void HMAC_cleanup(HMAC_CTX *ctx);',
+]
diff --git a/cryptography/c/nid.py b/cryptography/c/nid.py
new file mode 100644
index 00000000..6d55a058
--- /dev/null
+++ b/cryptography/c/nid.py
@@ -0,0 +1,23 @@
+TYPES = [
+    'static const int NID_undef;',
+    'static const int NID_dsa;',
+    'static const int NID_dsaWithSHA;',
+    'static const int NID_dsaWithSHA1;',
+#   'static const int NID_md2;',
+    'static const int NID_md4;',
+    'static const int NID_md5;',
+    'static const int NID_mdc2;',
+    'static const int NID_ripemd160;',
+    'static const int NID_sha;',
+    'static const int NID_sha1;',
+    'static const int NID_sha256;',
+    'static const int NID_sha384;',
+    'static const int NID_sha512;',
+    'static const int NID_sha224;',
+    'static const int NID_sha;',
+    'static const int NID_ecdsa_with_SHA1;',
+    'static const int NID_ecdsa_with_SHA224;',
+    'static const int NID_ecdsa_with_SHA256;',
+    'static const int NID_ecdsa_with_SHA384;',
+    'static const int NID_ecdsa_with_SHA512;',
+]
diff --git a/cryptography/c/obj.py b/cryptography/c/obj.py
new file mode 100644
index 00000000..6b5bf67e
--- /dev/null
+++ b/cryptography/c/obj.py
@@ -0,0 +1,33 @@
+INCLUDES = [
+    '#include <openssl/objects.h>',
+]
+
+TYPES = [
+    'static const int OBJ_NAME_TYPE_UNDEF;',
+    'static const int OBJ_NAME_TYPE_MD_METH;',
+    'static const int OBJ_NAME_TYPE_CIPHER_METH;',
+    'static const int OBJ_NAME_TYPE_PKEY_METH;',
+    'static const int OBJ_NAME_TYPE_COMP_METH;',
+    'static const int OBJ_NAME_TYPE_NUM;',
+    'struct obj_name_st { int type; int alias; const char *name; const char *data; ...; };',
+    'typedef struct obj_name_st OBJ_NAME;',
+]
+
+FUNCTIONS = [
+    'ASN1_OBJECT *OBJ_nid2obj(int n);',
+    'const char *OBJ_nid2ln(int n);',
+    'const char *OBJ_nid2sn(int n);',
+    'int OBJ_obj2nid(const ASN1_OBJECT *o);',
+    'int OBJ_ln2nid(const char *ln);',
+    'int OBJ_sn2nid(const char *sn);',
+    'int OBJ_txt2nid(const char *s);',
+    'ASN1_OBJECT * OBJ_txt2obj(const char *s, int no_name);',
+    'int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name);',
+    'int OBJ_cmp(const ASN1_OBJECT *a,const ASN1_OBJECT *b);',
+    'ASN1_OBJECT * OBJ_dup(const ASN1_OBJECT *o);',
+    'int OBJ_create(const char *oid,const char *sn,const char *ln);',
+    'void OBJ_cleanup(void);',
+    'int OBJ_NAME_init(void);',
+    'void OBJ_NAME_do_all(int type,void (*fn)(const OBJ_NAME *,void *arg), void *arg);',
+    'void OBJ_NAME_do_all_sorted(int type,void (*fn)(const OBJ_NAME *,void *arg), void *arg);',
+]
diff --git a/cryptography/c/openssl.py b/cryptography/c/openssl.py
new file mode 100644
index 00000000..0fc9d706
--- /dev/null
+++ b/cryptography/c/openssl.py
@@ -0,0 +1,14 @@
+INCLUDES = [
+    '#include "openssl/ssl.h"',
+]
+
+SETUP = [
+    'OpenSSL_add_all_digests',
+    'OpenSSL_add_all_ciphers',
+]
+
+FUNCTIONS = [
+    "void OpenSSL_add_all_algorithms(void);",
+    "void OpenSSL_add_all_ciphers(void);",
+    "void OpenSSL_add_all_digests(void);",
+]
diff --git a/cryptography/c/pkcs5.py b/cryptography/c/pkcs5.py
new file mode 100644
index 00000000..423f5e64
--- /dev/null
+++ b/cryptography/c/pkcs5.py
@@ -0,0 +1,13 @@
+INCLUDES = [
+    '#include "openssl/evp.h"',
+]
+
+FUNCTIONS = [
+    'int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,'
+        'const unsigned char *salt, int saltlen, int iter,'
+        'int keylen, unsigned char *out);',
+    'int EVP_BytesToKey(const EVP_CIPHER *type,const EVP_MD *md,'
+        'const unsigned char *salt,'
+        'const unsigned char *data, int datal, int count,'
+        'unsigned char *key,unsigned char *iv);',
+]
diff --git a/cryptography/c/rand.py b/cryptography/c/rand.py
new file mode 100644
index 00000000..ce7cd1bc
--- /dev/null
+++ b/cryptography/c/rand.py
@@ -0,0 +1,18 @@
+INCLUDES = [
+    '#include <openssl/rand.h>',
+]
+
+FUNCTIONS = [
+    'void RAND_seed(const void *buf, int num);',
+    'void RAND_add(const void *buf, int num, double entropy);',
+    'int RAND_status(void);',
+    'int RAND_egd(const char *path);',
+    'int RAND_egd_bytes(const char *path, int bytes);',
+    'int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);',
+    'const char *RAND_file_name(char *buf, size_t num);',
+    'int RAND_load_file(const char *filename, long max_bytes);',
+    'int RAND_write_file(const char *filename);',
+    'void RAND_cleanup(void);',
+    'int RAND_bytes(unsigned char *buf, int num);',
+    'int RAND_pseudo_bytes(unsigned char *buf, int num);',
+]
diff --git a/cryptography/c/ssl.py b/cryptography/c/ssl.py
new file mode 100644
index 00000000..25dd006a
--- /dev/null
+++ b/cryptography/c/ssl.py
@@ -0,0 +1,108 @@
+from functools import wraps
+
+INCLUDES = [
+    '#include "openssl/ssl.h"',
+]
+
+SETUP = [
+    'SSL_library_init',
+]
+
+TYPES = [
+    # Internally invented symbol to tell us if SSLv2 is supported
+    'static const int OPENTLS_NO_SSL2;',
+
+    'typedef ... SSL_METHOD;',
+    'typedef ... SSL_CTX;',
+]
+
+FUNCTIONS = [
+    'int SSL_library_init(void);',
+
+    # methods
+    'const SSL_METHOD *SSLv3_method(void);',
+    'const SSL_METHOD *SSLv3_server_method(void);',
+    'const SSL_METHOD *SSLv3_client_method(void);',
+    'const SSL_METHOD *TLSv1_method(void);',
+    'const SSL_METHOD *TLSv1_server_method(void);',
+    'const SSL_METHOD *TLSv1_client_method(void);',
+    'const SSL_METHOD *SSLv23_method(void);',
+    'const SSL_METHOD *SSLv23_server_method(void);',
+    'const SSL_METHOD *SSLv23_client_method(void);',
+
+    # SSLv2 support is compiled out of some versions of OpenSSL.  These will
+    # get special support when we generate the bindings so that if they are
+    # available they will be wrapped, but if they are not they won't cause
+    # problems (like link errors).
+    'SSL_METHOD *SSLv2_method(void);',
+    'SSL_METHOD *SSLv2_server_method(void);',
+    'SSL_METHOD *SSLv2_client_method(void);',
+
+    # context
+    'SSL_CTX *SSL_CTX_new(SSL_METHOD *method);',
+    'void SSL_CTX_free(SSL_CTX *ctx);',
+]
+
+C_CUSTOMIZATION = [
+    """
+#ifdef OPENSSL_NO_SSL2
+static const int OPENTLS_NO_SSL2 = 1;
+SSL_METHOD* (*SSLv2_method)(void) = NULL;
+SSL_METHOD* (*SSLv2_client_method)(void) = NULL;
+SSL_METHOD* (*SSLv2_server_method)(void) = NULL;
+#else
+static const int OPENTLS_NO_SSL2 = 0;
+#endif
+"""]
+
+
+def _not_implemented_override(wrapped):
+    """
+    Decorator to help define an override which just raises NotImplementedError,
+    useful to define friendly versions of APIs which are not actually available
+    in the version of OpenSSL currently in use.
+
+    wrapped is the Python function which will override the cffi-defined
+    wrapper.
+
+    This returns a factory to create the override function.  It expects to be
+    called by the tls.c.api setup machinery.  See tls/c/__init__.py.
+    """
+    @wraps(wrapped)
+    def _not_implemented_factory(api, from_openssl):
+        """
+        If SSLv2 is not supported by the OpenSSL library represented by the
+        given api object, create an override function which raises
+        NotImplementedError instead of trying to call the requested API (which
+        would probably result in a null pointer dereference).
+        """
+        if api.OPENTLS_NO_SSL2:
+            # SSLv2 is unsupported, give back the safe wrapper
+            @wraps(wrapped)
+            def not_implemented(*args, **kwargs):
+                raise NotImplementedError()
+            return not_implemented
+        else:
+            # SSLv2 is supported, give back the original function
+            return from_openssl
+
+    return _not_implemented_factory
+
+
+@_not_implemented_override
+def SSLv2_method():
+    pass
+
+
+@_not_implemented_override
+def SSLv2_client_method():
+    pass
+
+
+@_not_implemented_override
+def SSLv2_server_method():
+    pass
+
+OVERRIDES = [
+    SSLv2_method, SSLv2_client_method, SSLv2_server_method,
+]
diff --git a/cryptography/c/ssleay.py b/cryptography/c/ssleay.py
new file mode 100644
index 00000000..a75d664c
--- /dev/null
+++ b/cryptography/c/ssleay.py
@@ -0,0 +1,16 @@
+INCLUDES = [
+    '#include "openssl/ssl.h"',
+]
+
+TYPES = [
+    'static const int SSLEAY_VERSION;',
+    'static const int SSLEAY_CFLAGS;',
+    'static const int SSLEAY_BUILT_ON;',
+    'static const int SSLEAY_PLATFORM;',
+    'static const int SSLEAY_DIR;',
+]
+
+FUNCTIONS = [
+    "long SSLeay(void);",
+    "const char* SSLeay_version(int);",
+]
diff --git a/cryptography/c/stdio.py b/cryptography/c/stdio.py
new file mode 100644
index 00000000..553b6fc9
--- /dev/null
+++ b/cryptography/c/stdio.py
@@ -0,0 +1,12 @@
+INCLUDES = [
+    '#include <stdio.h>',
+]
+
+TYPES = [
+]
+
+FUNCTIONS = [
+    'FILE *fdopen(int fildes, const char *mode);',
+    'FILE *fopen(const char *restrict filename, const char *restrict mode);',
+    'FILE *freopen(const char *restrict filename, const char *restrict mode, FILE *restrict stream);',
+]