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bb815eafaf
We now have implement all of Musl's localization code, the same way that Musl implements localization. You may need setlocale(LC_ALL, "C.UTF-8"), just in case anything stops working as expected.
132 lines
4.2 KiB
C
132 lines
4.2 KiB
C
#ifndef Py__SOCKET_H
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#define Py__SOCKET_H
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#include "libc/sock/sock.h"
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#include "libc/sock/struct/sockaddr.h"
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#include "third_party/python/Include/object.h"
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#include "libc/sock/struct/sockaddr6.h"
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#include "third_party/python/Include/pytime.h"
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COSMOPOLITAN_C_START_
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/* Python module and C API name */
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#define PySocket_MODULE_NAME "_socket"
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#define PySocket_CAPI_NAME "CAPI"
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#define PySocket_CAPSULE_NAME PySocket_MODULE_NAME "." PySocket_CAPI_NAME
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typedef int SOCKET_T;
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#define SIZEOF_SOCKET_T __SIZEOF_INT__
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#if SIZEOF_SOCKET_T <= SIZEOF_LONG
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#define PyLong_FromSocket_t(fd) PyLong_FromLong((SOCKET_T)(fd))
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#define PyLong_AsSocket_t(fd) (SOCKET_T)PyLong_AsLong(fd)
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#else
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#define PyLong_FromSocket_t(fd) PyLong_FromLongLong((SOCKET_T)(fd))
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#define PyLong_AsSocket_t(fd) (SOCKET_T)PyLong_AsLongLong(fd)
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#endif
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/* Socket address */
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typedef union sock_addr {
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struct sockaddr_in in;
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struct sockaddr sa;
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struct sockaddr_un un;
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#ifdef ENABLE_IPV6
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struct sockaddr_in6 in6;
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struct sockaddr_storage storage;
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#endif
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#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
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struct sockaddr_l2 bt_l2;
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struct sockaddr_rc bt_rc;
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struct sockaddr_sco bt_sco;
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struct sockaddr_hci bt_hci;
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#endif
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#ifdef HAVE_NETPACKET_PACKET_H
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struct sockaddr_ll ll;
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#endif
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#ifdef HAVE_LINUX_CAN_H
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struct sockaddr_can can;
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#endif
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#ifdef HAVE_SYS_KERN_CONTROL_H
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struct sockaddr_ctl ctl;
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#endif
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#ifdef HAVE_SOCKADDR_ALG
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struct sockaddr_alg alg;
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#endif
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} sock_addr_t;
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/* The object holding a socket. It holds some extra information,
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like the address family, which is used to decode socket address
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arguments properly. */
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typedef struct {
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PyObject_HEAD
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SOCKET_T sock_fd; /* Socket file descriptor */
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int sock_family; /* Address family, e.g., AF_INET */
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int sock_type; /* Socket type, e.g., SOCK_STREAM */
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int sock_proto; /* Protocol type, usually 0 */
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PyObject *(*errorhandler)(void); /* Error handler; checks
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errno, returns NULL and
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sets a Python exception */
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_PyTime_t sock_timeout; /* Operation timeout in seconds;
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0.0 means non-blocking */
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} PySocketSockObject;
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/* --- C API ----------------------------------------------------*/
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/* Short explanation of what this C API export mechanism does
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and how it works:
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The _ssl module needs access to the type object defined in
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the _socket module. Since cross-DLL linking introduces a lot of
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problems on many platforms, the "trick" is to wrap the
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C API of a module in a struct which then gets exported to
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other modules via a PyCapsule.
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The code in socketmodule.c defines this struct (which currently
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only contains the type object reference, but could very
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well also include other C APIs needed by other modules)
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and exports it as PyCapsule via the module dictionary
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under the name "CAPI".
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Other modules can now include the socketmodule.h file
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which defines the needed C APIs to import and set up
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a static copy of this struct in the importing module.
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After initialization, the importing module can then
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access the C APIs from the _socket module by simply
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referring to the static struct, e.g.
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Load _socket module and its C API; this sets up the global
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PySocketModule:
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if (PySocketModule_ImportModuleAndAPI())
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return;
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Now use the C API as if it were defined in the using
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module:
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if (!PyArg_ParseTuple(args, "O!|zz:ssl",
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PySocketModule.Sock_Type,
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(PyObject*)&Sock,
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&key_file, &cert_file))
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return NULL;
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Support could easily be extended to export more C APIs/symbols
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this way. Currently, only the type object is exported,
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other candidates would be socket constructors and socket
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access functions.
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*/
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/* C API for usage by other Python modules */
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typedef struct {
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PyTypeObject *Sock_Type;
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PyObject *error;
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PyObject *timeout_error;
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} PySocketModule_APIObject;
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#define PySocketModule_ImportModuleAndAPI() PyCapsule_Import(PySocket_CAPSULE_NAME, 1)
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COSMOPOLITAN_C_END_
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#endif /* !Py__SOCKET_H */
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