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- /* Socket module */
-
- /* SSL support based on patches by Brian E Gallew and Laszlo Kovacs */
-
- /*
- This module provides an interface to Berkeley socket IPC.
-
- Limitations:
-
- - only AF_INET and AF_UNIX address families are supported
- - no read/write operations (use send/recv or makefile instead)
- - additional restrictions apply on Windows
-
- Module interface:
-
- - socket.error: exception raised for socket specific errors
- - socket.gethostbyname(hostname) --> host IP address (string: 'dd.dd.dd.dd')
- - socket.gethostbyaddr(IP address) --> (hostname, [alias, ...], [IP addr, ...])
- - socket.gethostname() --> host name (string: 'spam' or 'spam.domain.com')
- - socket.getprotobyname(protocolname) --> protocol number
- - socket.getservbyname(servicename, protocolname) --> port number
- - socket.socket(family, type [, proto]) --> new socket object
- - socket.ntohs(16 bit value) --> new int object
- - socket.ntohl(32 bit value) --> new int object
- - socket.htons(16 bit value) --> new int object
- - socket.htonl(32 bit value) --> new int object
- - socket.AF_INET, socket.SOCK_STREAM, etc.: constants from <socket.h>
- - socket.inet_aton(IP address) -> 32-bit packed IP representation
- - socket.inet_ntoa(packed IP) -> IP address string
- - socket.ssl(socket, keyfile, certfile) -> new ssl object
- - an Internet socket address is a pair (hostname, port)
- where hostname can be anything recognized by gethostbyname()
- (including the dd.dd.dd.dd notation) and port is in host byte order
- - where a hostname is returned, the dd.dd.dd.dd notation is used
- - a UNIX domain socket address is a string specifying the pathname
-
- Socket methods:
-
- - s.accept() --> new socket object, sockaddr
- - s.bind(sockaddr) --> None
- - s.close() --> None
- - s.connect(sockaddr) --> None
- - s.connect_ex(sockaddr) --> 0 or errno (handy for e.g. async connect)
- - s.fileno() --> file descriptor
- - s.dup() --> same as socket.fromfd(os.dup(s.fileno(), ...)
- - s.getpeername() --> sockaddr
- - s.getsockname() --> sockaddr
- - s.getsockopt(level, optname[, buflen]) --> int or string
- - s.listen(backlog) --> None
- - s.makefile([mode[, bufsize]]) --> file object
- - s.recv(buflen [,flags]) --> string
- - s.recvfrom(buflen [,flags]) --> string, sockaddr
- - s.send(string [,flags]) --> nbytes
- - s.sendto(string, [flags,] sockaddr) --> nbytes
- - s.setblocking(0 | 1) --> None
- - s.setsockopt(level, optname, value) --> None
- - s.shutdown(how) --> None
- - repr(s) --> "<socket object, fd=%d, family=%d, type=%d, protocol=%d>"
-
- */
-
- #include "Python.h"
-
- /* Hacks for gethostbyname_r(). On some non-Linux platforms, the configure
- script doesn't get this right, so we hardcode some platform checks below.
- On the other hand, not all Linux versions agree, so there the settings
- computed by the configure script are needed! */
-
- #ifndef linux
- #undef HAVE_GETHOSTBYNAME_R_3_ARG
- #undef HAVE_GETHOSTBYNAME_R_5_ARG
- #undef HAVE_GETHOSTBYNAME_R_6_ARG
- #endif
-
- #ifndef WITH_THREAD
- #undef HAVE_GETHOSTBYNAME_R
- #endif
-
- #ifdef HAVE_GETHOSTBYNAME_R
- #if defined(_AIX) || defined(__osf__)
- #define HAVE_GETHOSTBYNAME_R_3_ARG
- #elif defined(__sun__) || defined(__sgi)
- #define HAVE_GETHOSTBYNAME_R_5_ARG
- #elif defined(linux)
- /* Rely on the configure script */
- #else
- #undef HAVE_GETHOSTBYNAME_R
- #endif
- #endif
-
- #if !defined(HAVE_GETHOSTBYNAME_R) && defined(WITH_THREAD) && !defined(MS_WINDOWS)
- #define USE_GETHOSTBYNAME_LOCK
- #endif
-
- #ifdef USE_GETHOSTBYNAME_LOCK
- #include "pythread.h"
- #endif
-
- #ifdef HAVE_SYS_PARAM_H
- #include <sys/param.h>
- #endif
-
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
-
- #if defined(PYCC_VACPP)
- #include <types.h>
- #include <io.h>
- #include <sys/ioctl.h>
- #include <utils.h>
- #include <ctype.h>
- #endif
-
- #if defined(PYOS_OS2)
- #define INCL_DOS
- #define INCL_DOSERRORS
- #define INCL_NOPMAPI
- #include <os2.h>
- #endif
-
- #include <sys/types.h>
-
- #include <signal.h>
- #ifndef MS_WINDOWS
- #include <netdb.h>
- #include <sys/socket.h>
- #include <netinet/in.h>
- #if !(defined(__BEOS__) || defined(__CYGWIN__))
- #include <netinet/tcp.h>
- #endif
-
- /* Headers needed for inet_ntoa() and inet_addr() */
- #ifdef __BEOS__
- #include <net/netdb.h>
- #else
- #ifndef USE_GUSI1
- #include <arpa/inet.h>
- #endif
- #endif
-
- #include <fcntl.h>
- #else
- #include <winsock.h>
- #include <fcntl.h>
- #endif
- #if defined(AMITCP) || defined(INET225)
- #define SYS_TTYCHARS_H
- #include <sys/ioctl.h>
- #include <proto/socket.h>
- typedef LONG socklen_t;
- #endif
- #ifdef HAVE_SYS_UN_H
- #include <sys/un.h>
- #else
- #undef AF_UNIX
- #endif
-
- #ifndef O_NDELAY
- #define O_NDELAY O_NONBLOCK /* For QNX only? */
- #endif
-
- #ifdef USE_GUSI1
- /* fdopen() isn't declared in stdio.h (sigh) */
- #include <GUSI.h>
- #endif
-
- #ifdef USE_SSL
- #include "rsa.h"
- #include "crypto.h"
- #include "x509.h"
- #include "pem.h"
- #include "ssl.h"
- #include "err.h"
- #endif /* USE_SSL */
-
- #if defined(MS_WINDOWS) || defined(__BEOS__)
- /* BeOS suffers from the same socket dichotomy as Win32... - [cjh] */
- /* seem to be a few differences in the API */
- #define SOCKETCLOSE closesocket
- #define NO_DUP /* Actually it exists on NT 3.5, but what the heck... */
- #endif
-
- /* abstract the socket file descriptor type */
- #ifdef MS_WINDOWS
- typedef SOCKET SOCKET_T;
- # ifdef MS_WIN64
- # define SIZEOF_SOCKET_T 8
- # else
- # define SIZEOF_SOCKET_T 4
- # endif
- #else
- typedef int SOCKET_T;
- # define SIZEOF_SOCKET_T SIZEOF_INT
- #endif
-
-
- #if defined(PYOS_OS2)
- #define SOCKETCLOSE soclose
- #define NO_DUP /* Sockets are Not Actual File Handles under OS/2 */
- #endif
-
- #ifdef AMITCP
- /* seem to be a few differences in the API */
- //#define close CloseSocket
- #define ioctlsocket IoctlSocket
- #undef NO_DUP
- #undef AF_UNIX
- #endif
-
- #ifdef INET225
- /* seem to be a few differences in the API */
- #define close s_close
- #define ioctlsocket s_ioctl
- #undef NO_DUP
- static __inline int dup(int oldsd) { return s_dup(oldsd); }
- #undef AF_UNIX
- #endif
-
- #ifndef SOCKETCLOSE
- #define SOCKETCLOSE close
- #endif
-
- /* Global variable holding the exception type for errors detected
- by this module (but not argument type or memory errors, etc.). */
-
- static PyObject *PySocket_Error;
-
- #ifdef USE_SSL
- static PyObject *SSLErrorObject;
- #endif /* USE_SSL */
-
-
- /* Convenience function to raise an error according to errno
- and return a NULL pointer from a function. */
-
- static PyObject *
- PySocket_Err(void)
- {
- #ifdef MS_WINDOWS
- int err_no = WSAGetLastError();
- if (err_no) {
- static struct { int no; const char *msg; } *msgp, msgs[] = {
- { WSAEINTR, "Interrupted system call" },
- { WSAEBADF, "Bad file descriptor" },
- { WSAEACCES, "Permission denied" },
- { WSAEFAULT, "Bad address" },
- { WSAEINVAL, "Invalid argument" },
- { WSAEMFILE, "Too many open files" },
- { WSAEWOULDBLOCK,
- "The socket operation could not complete "
- "without blocking" },
- { WSAEINPROGRESS, "Operation now in progress" },
- { WSAEALREADY, "Operation already in progress" },
- { WSAENOTSOCK, "Socket operation on non-socket" },
- { WSAEDESTADDRREQ, "Destination address required" },
- { WSAEMSGSIZE, "Message too long" },
- { WSAEPROTOTYPE, "Protocol wrong type for socket" },
- { WSAENOPROTOOPT, "Protocol not available" },
- { WSAEPROTONOSUPPORT, "Protocol not supported" },
- { WSAESOCKTNOSUPPORT, "Socket type not supported" },
- { WSAEOPNOTSUPP, "Operation not supported" },
- { WSAEPFNOSUPPORT, "Protocol family not supported" },
- { WSAEAFNOSUPPORT, "Address family not supported" },
- { WSAEADDRINUSE, "Address already in use" },
- { WSAEADDRNOTAVAIL,
- "Can't assign requested address" },
- { WSAENETDOWN, "Network is down" },
- { WSAENETUNREACH, "Network is unreachable" },
- { WSAENETRESET,
- "Network dropped connection on reset" },
- { WSAECONNABORTED,
- "Software caused connection abort" },
- { WSAECONNRESET, "Connection reset by peer" },
- { WSAENOBUFS, "No buffer space available" },
- { WSAEISCONN, "Socket is already connected" },
- { WSAENOTCONN, "Socket is not connected" },
- { WSAESHUTDOWN, "Can't send after socket shutdown" },
- { WSAETOOMANYREFS,
- "Too many references: can't splice" },
- { WSAETIMEDOUT, "Operation timed out" },
- { WSAECONNREFUSED, "Connection refused" },
- { WSAELOOP, "Too many levels of symbolic links" },
- { WSAENAMETOOLONG, "File name too long" },
- { WSAEHOSTDOWN, "Host is down" },
- { WSAEHOSTUNREACH, "No route to host" },
- { WSAENOTEMPTY, "Directory not empty" },
- { WSAEPROCLIM, "Too many processes" },
- { WSAEUSERS, "Too many users" },
- { WSAEDQUOT, "Disc quota exceeded" },
- { WSAESTALE, "Stale NFS file handle" },
- { WSAEREMOTE, "Too many levels of remote in path" },
- { WSASYSNOTREADY,
- "Network subsystem is unvailable" },
- { WSAVERNOTSUPPORTED,
- "WinSock version is not supported" },
- { WSANOTINITIALISED,
- "Successful WSAStartup() not yet performed" },
- { WSAEDISCON, "Graceful shutdown in progress" },
- /* Resolver errors */
- { WSAHOST_NOT_FOUND, "No such host is known" },
- { WSATRY_AGAIN, "Host not found, or server failed" },
- { WSANO_RECOVERY,
- "Unexpected server error encountered" },
- { WSANO_DATA, "Valid name without requested data" },
- { WSANO_ADDRESS, "No address, look for MX record" },
- { 0, NULL }
- };
- PyObject *v;
- const char *msg = "winsock error";
-
- for (msgp = msgs; msgp->msg; msgp++) {
- if (err_no == msgp->no) {
- msg = msgp->msg;
- break;
- }
- }
-
- v = Py_BuildValue("(is)", err_no, msg);
- if (v != NULL) {
- PyErr_SetObject(PySocket_Error, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- else
- #endif
-
- #if defined(PYOS_OS2)
- if (sock_errno() != NO_ERROR) {
- APIRET rc;
- ULONG msglen;
- char outbuf[100];
- int myerrorcode = sock_errno();
-
- /* Retrieve Socket-Related Error Message from MPTN.MSG File */
- rc = DosGetMessage(NULL, 0, outbuf, sizeof(outbuf),
- myerrorcode - SOCBASEERR + 26, "mptn.msg", &msglen);
- if (rc == NO_ERROR) {
- PyObject *v;
-
- outbuf[msglen] = '\0'; /* OS/2 Doesn't Guarantee a Terminator */
- if (strlen(outbuf) > 0) { /* If Non-Empty Msg, Trim CRLF */
- char *lastc = &outbuf[ strlen(outbuf)-1 ];
- while (lastc > outbuf && isspace(*lastc))
- *lastc-- = '\0'; /* Trim Trailing Whitespace (CRLF) */
- }
- v = Py_BuildValue("(is)", myerrorcode, outbuf);
- if (v != NULL) {
- PyErr_SetObject(PySocket_Error, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- }
- #endif
-
- return PyErr_SetFromErrno(PySocket_Error);
- }
-
-
- /* The object holding a socket. It holds some extra information,
- like the address family, which is used to decode socket address
- arguments properly. */
-
- typedef struct {
- PyObject_HEAD
- SOCKET_T sock_fd; /* Socket file descriptor */
- int sock_family; /* Address family, e.g., AF_INET */
- int sock_type; /* Socket type, e.g., SOCK_STREAM */
- int sock_proto; /* Protocol type, usually 0 */
- union sock_addr {
- struct sockaddr_in in;
- #ifdef AF_UNIX
- struct sockaddr_un un;
- #endif
- } sock_addr;
- } PySocketSockObject;
-
- #ifdef USE_SSL
-
- typedef struct {
- PyObject_HEAD
- PySocketSockObject *Socket; /* Socket on which we're layered */
- PyObject *x_attr; /* Attributes dictionary */
- SSL_CTX* ctx;
- SSL* ssl;
- X509* server_cert;
- BIO* sbio;
- char server[256];
- char issuer[256];
-
- } SSLObject;
-
- staticforward PyTypeObject SSL_Type;
- staticforward PyObject *SSL_SSLwrite(SSLObject *self, PyObject *args);
- staticforward PyObject *SSL_SSLread(SSLObject *self, PyObject *args);
-
- #define SSLObject_Check(v) ((v)->ob_type == &SSL_Type)
-
- #endif /* USE_SSL */
-
- /* A forward reference to the Socktype type object.
- The Socktype variable contains pointers to various functions,
- some of which call newsockobject(), which uses Socktype, so
- there has to be a circular reference. */
-
- staticforward PyTypeObject PySocketSock_Type;
-
-
- /* Create a new socket object.
- This just creates the object and initializes it.
- If the creation fails, return NULL and set an exception (implicit
- in NEWOBJ()). */
-
- static PySocketSockObject *
- PySocketSock_New(SOCKET_T fd, int family, int type, int proto)
- {
- PySocketSockObject *s;
- PySocketSock_Type.ob_type = &PyType_Type;
- s = PyObject_New(PySocketSockObject, &PySocketSock_Type);
- if (s != NULL) {
- s->sock_fd = fd;
- s->sock_family = family;
- s->sock_type = type;
- s->sock_proto = proto;
- #if defined(AMITCP) || defined (INET225)
- /* Amiga's TCP stacks want a zeroed out sock_addr structure */
- memset(&s->sock_addr, 0, sizeof(s->sock_addr));
- #ifdef AMITCP
- if(family==AF_INET) s->sock_addr.in.sin_len=sizeof(struct sockaddr_in);
- #ifdef AF_UNIX
- if(family==AF_UNIX) s->sock_addr.un.sun_len=sizeof(struct sockaddr_un);
- #endif /* AF_UNIX */
- #endif /* AMITCP */
- #endif /* AMITCP || INET225 */
- }
- return s;
- }
-
-
- /* Lock to allow python interpreter to continue, but only allow one
- thread to be in gethostbyname */
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_type_lock gethostbyname_lock;
- #endif
-
-
- /* Convert a string specifying a host name or one of a few symbolic
- names to a numeric IP address. This usually calls gethostbyname()
- to do the work; the names "" and "<broadcast>" are special.
- Return the length (should always be 4 bytes), or negative if
- an error occurred; then an exception is raised. */
-
- static int
- setipaddr(char* name, struct sockaddr_in * addr_ret)
- {
- struct hostent *hp;
- int d1, d2, d3, d4;
- int h_length;
- char ch;
- #ifdef HAVE_GETHOSTBYNAME_R
- struct hostent hp_allocated;
- #ifdef HAVE_GETHOSTBYNAME_R_3_ARG
- struct hostent_data data;
- #else
- char buf[1001];
- int buf_len = (sizeof buf) - 1;
- int errnop;
- #endif
- #if defined(HAVE_GETHOSTBYNAME_R_3_ARG) || defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- int result;
- #endif
- #endif /* HAVE_GETHOSTBYNAME_R */
-
- memset((void *) addr_ret, '\0', sizeof(*addr_ret));
- if (name[0] == '\0') {
- addr_ret->sin_addr.s_addr = INADDR_ANY;
- return 4;
- }
- if (name[0] == '<' && strcmp(name, "<broadcast>") == 0) {
- addr_ret->sin_addr.s_addr = INADDR_BROADCAST;
- return 4;
- }
- if (sscanf(name, "%d.%d.%d.%d%c", &d1, &d2, &d3, &d4, &ch) == 4 &&
- 0 <= d1 && d1 <= 255 && 0 <= d2 && d2 <= 255 &&
- 0 <= d3 && d3 <= 255 && 0 <= d4 && d4 <= 255) {
- addr_ret->sin_addr.s_addr = htonl(
- ((long) d1 << 24) | ((long) d2 << 16) |
- ((long) d3 << 8) | ((long) d4 << 0));
- return 4;
- }
- Py_BEGIN_ALLOW_THREADS
- #ifdef HAVE_GETHOSTBYNAME_R
- #if defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- result = gethostbyname_r(name, &hp_allocated, buf, buf_len, &hp, &errnop);
- #elif defined(HAVE_GETHOSTBYNAME_R_5_ARG)
- hp = gethostbyname_r(name, &hp_allocated, buf, buf_len, &errnop);
- #else /* HAVE_GETHOSTBYNAME_R_3_ARG */
- memset((void *) &data, '\0', sizeof(data));
- result = gethostbyname_r(name, &hp_allocated, &data);
- hp = (result != 0) ? NULL : &hp_allocated;
- #endif
- #else /* not HAVE_GETHOSTBYNAME_R */
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_acquire_lock(gethostbyname_lock, 1);
- #endif
- hp = gethostbyname(name);
- #endif /* HAVE_GETHOSTBYNAME_R */
- Py_END_ALLOW_THREADS
-
- if (hp == NULL) {
- #ifdef HAVE_HSTRERROR
- /* Let's get real error message to return */
- extern int h_errno;
- PyErr_SetString(PySocket_Error, (char *)hstrerror(h_errno));
- #else
- PyErr_SetString(PySocket_Error, "host not found");
- #endif
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_release_lock(gethostbyname_lock);
- #endif
- return -1;
- }
- memcpy((char *) &addr_ret->sin_addr, hp->h_addr, hp->h_length);
- h_length = hp->h_length;
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_release_lock(gethostbyname_lock);
- #endif
- return h_length;
- }
-
-
- /* Create a string object representing an IP address.
- This is always a string of the form 'dd.dd.dd.dd' (with variable
- size numbers). */
-
- static PyObject *
- makeipaddr(struct sockaddr_in *addr)
- {
- long x = ntohl(addr->sin_addr.s_addr);
- char buf[100];
- sprintf(buf, "%d.%d.%d.%d",
- (int) (x>>24) & 0xff, (int) (x>>16) & 0xff,
- (int) (x>> 8) & 0xff, (int) (x>> 0) & 0xff);
- return PyString_FromString(buf);
- }
-
-
- /* Create an object representing the given socket address,
- suitable for passing it back to bind(), connect() etc.
- The family field of the sockaddr structure is inspected
- to determine what kind of address it really is. */
-
- /*ARGSUSED*/
- static PyObject *
- makesockaddr(struct sockaddr *addr, int addrlen)
- {
- if (addrlen == 0) {
- /* No address -- may be recvfrom() from known socket */
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- #ifdef __BEOS__
- /* XXX: BeOS version of accept() doesn't set family correctly */
- addr->sa_family = AF_INET;
- #endif
-
- switch (addr->sa_family) {
-
- case AF_INET:
- {
- struct sockaddr_in *a = (struct sockaddr_in *) addr;
- PyObject *addrobj = makeipaddr(a);
- PyObject *ret = NULL;
- if (addrobj) {
- ret = Py_BuildValue("Oi", addrobj, ntohs(a->sin_port));
- Py_DECREF(addrobj);
- }
- return ret;
- }
-
- #ifdef AF_UNIX
- case AF_UNIX:
- {
- struct sockaddr_un *a = (struct sockaddr_un *) addr;
- return PyString_FromString(a->sun_path);
- }
- #endif /* AF_UNIX */
-
- /* More cases here... */
-
- default:
- /* If we don't know the address family, don't raise an
- exception -- return it as a tuple. */
- return Py_BuildValue("is#",
- addr->sa_family,
- addr->sa_data,
- sizeof(addr->sa_data));
-
- }
- }
-
-
- /* Parse a socket address argument according to the socket object's
- address family. Return 1 if the address was in the proper format,
- 0 of not. The address is returned through addr_ret, its length
- through len_ret. */
-
- static int
- getsockaddrarg(PySocketSockObject *s, PyObject *args, struct sockaddr **addr_ret, int *len_ret)
- {
- switch (s->sock_family) {
-
- #ifdef AF_UNIX
- case AF_UNIX:
- {
- struct sockaddr_un* addr;
- char *path;
- int len;
- addr = (struct sockaddr_un* )&(s->sock_addr).un;
- if (!PyArg_Parse(args, "t#", &path, &len))
- return 0;
- if (len > sizeof addr->sun_path) {
- PyErr_SetString(PySocket_Error,
- "AF_UNIX path too long");
- return 0;
- }
- addr->sun_family = AF_UNIX;
- memcpy(addr->sun_path, path, len);
- addr->sun_path[len] = 0;
- *addr_ret = (struct sockaddr *) addr;
- *len_ret = len + sizeof(*addr) - sizeof(addr->sun_path);
- return 1;
- }
- #endif /* AF_UNIX */
-
- case AF_INET:
- {
- struct sockaddr_in* addr;
- char *host;
- int port;
- addr=(struct sockaddr_in*)&(s->sock_addr).in;
- if (!PyArg_Parse(args, "(si)", &host, &port))
- return 0;
- if (setipaddr(host, addr) < 0)
- return 0;
- addr->sin_family = AF_INET;
- addr->sin_port = htons((short)port);
- *addr_ret = (struct sockaddr *) addr;
- *len_ret = sizeof *addr;
- return 1;
- }
-
- /* More cases here... */
-
- default:
- PyErr_SetString(PySocket_Error, "getsockaddrarg: bad family");
- return 0;
-
- }
- }
-
-
- /* Get the address length according to the socket object's address family.
- Return 1 if the family is known, 0 otherwise. The length is returned
- through len_ret. */
-
- static int
- getsockaddrlen(PySocketSockObject *s, socklen_t *len_ret)
- {
- switch (s->sock_family) {
-
- #ifdef AF_UNIX
- case AF_UNIX:
- {
- *len_ret = sizeof (struct sockaddr_un);
- return 1;
- }
- #endif /* AF_UNIX */
-
- case AF_INET:
- {
- *len_ret = sizeof (struct sockaddr_in);
- return 1;
- }
-
- /* More cases here... */
-
- default:
- PyErr_SetString(PySocket_Error, "getsockaddrlen: bad family");
- return 0;
-
- }
- }
-
-
- /* s.accept() method */
-
- static PyObject *
- PySocketSock_accept(PySocketSockObject *s, PyObject *args)
- {
- char addrbuf[256];
- SOCKET_T newfd;
- socklen_t addrlen;
- PyObject *sock = NULL;
- PyObject *addr = NULL;
- PyObject *res = NULL;
-
- if (!PyArg_ParseTuple(args, ":accept"))
- return NULL;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- newfd = accept(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen);
- Py_END_ALLOW_THREADS
- #ifdef MS_WINDOWS
- if (newfd == INVALID_SOCKET)
- #else
- if (newfd < 0)
- #endif
- return PySocket_Err();
-
- /* Create the new object with unspecified family,
- to avoid calls to bind() etc. on it. */
- sock = (PyObject *) PySocketSock_New(newfd,
- s->sock_family,
- s->sock_type,
- s->sock_proto);
- if (sock == NULL) {
- SOCKETCLOSE(newfd);
- goto finally;
- }
- if (!(addr = makesockaddr((struct sockaddr *) addrbuf, addrlen)))
- goto finally;
-
- if (!(res = Py_BuildValue("OO", sock, addr)))
- goto finally;
-
- finally:
- Py_XDECREF(sock);
- Py_XDECREF(addr);
- return res;
- }
-
- static char accept_doc[] =
- "accept() -> (socket object, address info)\n\
- \n\
- Wait for an incoming connection. Return a new socket representing the\n\
- connection, and the address of the client. For IP sockets, the address\n\
- info is a pair (hostaddr, port).";
-
-
- /* s.setblocking(1 | 0) method */
-
- static PyObject *
- PySocketSock_setblocking(PySocketSockObject *s, PyObject *args)
- {
- int block;
- #ifndef MS_WINDOWS
- int delay_flag;
- #endif
- if (!PyArg_ParseTuple(args, "i:setblocking", &block))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- #ifdef __BEOS__
- block = !block;
- setsockopt( s->sock_fd, SOL_SOCKET, SO_NONBLOCK,
- (void *)(&block), sizeof( int ) );
- #else
- #ifndef MS_WINDOWS
- #ifdef PYOS_OS2
- block = !block;
- ioctl(s->sock_fd, FIONBIO, (caddr_t)&block, sizeof(block));
- #else /* !PYOS_OS2 */
- #if defined(AMITCP) || defined (INET225)
- block = !block;
- ioctlsocket(s->sock_fd, FIONBIO, &block);
- #else
- delay_flag = fcntl (s->sock_fd, F_GETFL, 0);
- if (block)
- delay_flag &= (~O_NDELAY);
- else
- delay_flag |= O_NDELAY;
- fcntl (s->sock_fd, F_SETFL, delay_flag);
- #endif /* !AMITCP || INET225 */
- #endif /* !PYOS_OS2 */
- #else /* MS_WINDOWS */
- block = !block;
- ioctlsocket(s->sock_fd, FIONBIO, (u_long*)&block);
- #endif /* MS_WINDOWS */
- #endif /* __BEOS__ */
- Py_END_ALLOW_THREADS
-
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char setblocking_doc[] =
- "setblocking(flag)\n\
- \n\
- Set the socket to blocking (flag is true) or non-blocking (false).\n\
- This uses the FIONBIO ioctl with the O_NDELAY flag.";
-
-
- /* s.setsockopt() method.
- With an integer third argument, sets an integer option.
- With a string third argument, sets an option from a buffer;
- use optional built-in module 'struct' to encode the string. */
-
- static PyObject *
- PySocketSock_setsockopt(PySocketSockObject *s, PyObject *args)
- {
- int level;
- int optname;
- int res;
- char *buf;
- int buflen;
- int flag;
-
- if (PyArg_ParseTuple(args, "iii:setsockopt",
- &level, &optname, &flag)) {
- buf = (char *) &flag;
- buflen = sizeof flag;
- }
- else {
- PyErr_Clear();
- if (!PyArg_ParseTuple(args, "iis#:setsockopt",
- &level, &optname, &buf, &buflen))
- return NULL;
- }
- res = setsockopt(s->sock_fd, level, optname, (void *)buf, buflen);
- if (res < 0)
- return PySocket_Err();
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char setsockopt_doc[] =
- "setsockopt(level, option, value)\n\
- \n\
- Set a socket option. See the Unix manual for level and option.\n\
- The value argument can either be an integer or a string.";
-
-
- /* s.getsockopt() method.
- With two arguments, retrieves an integer option.
- With a third integer argument, retrieves a string buffer of that size;
- use optional built-in module 'struct' to decode the string. */
-
- static PyObject *
- PySocketSock_getsockopt(PySocketSockObject *s, PyObject *args)
- {
- int level;
- int optname;
- int res;
- PyObject *buf;
- socklen_t buflen = 0;
-
- #ifdef __BEOS__
- /* We have incomplete socket support. */
- PyErr_SetString( PySocket_Error, "getsockopt not supported" );
- return NULL;
- #else
-
- if (!PyArg_ParseTuple(args, "ii|i:getsockopt",
- &level, &optname, &buflen))
- return NULL;
-
- if (buflen == 0) {
- int flag = 0;
- socklen_t flagsize = sizeof flag;
- res = getsockopt(s->sock_fd, level, optname,
- (void *)&flag, &flagsize);
- if (res < 0)
- return PySocket_Err();
- return PyInt_FromLong(flag);
- }
- if (buflen <= 0 || buflen > 1024) {
- PyErr_SetString(PySocket_Error,
- "getsockopt buflen out of range");
- return NULL;
- }
- buf = PyString_FromStringAndSize((char *)NULL, buflen);
- if (buf == NULL)
- return NULL;
- res = getsockopt(s->sock_fd, level, optname,
- (void *)PyString_AsString(buf), &buflen);
- if (res < 0) {
- Py_DECREF(buf);
- return PySocket_Err();
- }
- _PyString_Resize(&buf, buflen);
- return buf;
- #endif /* __BEOS__ */
- }
-
- static char getsockopt_doc[] =
- "getsockopt(level, option[, buffersize]) -> value\n\
- \n\
- Get a socket option. See the Unix manual for level and option.\n\
- If a nonzero buffersize argument is given, the return value is a\n\
- string of that length; otherwise it is an integer.";
-
-
- /* s.bind(sockaddr) method */
-
- static PyObject *
- PySocketSock_bind(PySocketSockObject *s, PyObject *args)
- {
- struct sockaddr *addr;
- int addrlen;
- int res;
- PyObject *addro;
- if (!PyArg_ParseTuple(args, "O:bind", &addro))
- return NULL;
- if (!getsockaddrarg(s, addro, &addr, &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = bind(s->sock_fd, addr, addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char bind_doc[] =
- "bind(address)\n\
- \n\
- Bind the socket to a local address. For IP sockets, the address is a\n\
- pair (host, port); the host must refer to the local host.";
-
-
- /* s.close() method.
- Set the file descriptor to -1 so operations tried subsequently
- will surely fail. */
-
- static PyObject *
- PySocketSock_close(PySocketSockObject *s, PyObject *args)
- {
- if (!PyArg_ParseTuple(args, ":close"))
- return NULL;
- if (s->sock_fd != -1) {
- Py_BEGIN_ALLOW_THREADS
- (void) SOCKETCLOSE(s->sock_fd);
- Py_END_ALLOW_THREADS
- }
- s->sock_fd = -1;
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char close_doc[] =
- "close()\n\
- \n\
- Close the socket. It cannot be used after this call.";
-
-
- /* s.connect(sockaddr) method */
-
- static PyObject *
- PySocketSock_connect(PySocketSockObject *s, PyObject *args)
- {
- struct sockaddr *addr;
- int addrlen;
- int res;
- PyObject *addro;
- if (!PyArg_ParseTuple(args, "O:connect", &addro))
- return NULL;
- if (!getsockaddrarg(s, addro, &addr, &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = connect(s->sock_fd, addr, addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char connect_doc[] =
- "connect(address)\n\
- \n\
- Connect the socket to a remote address. For IP sockets, the address\n\
- is a pair (host, port).";
-
-
- /* s.connect_ex(sockaddr) method */
-
- static PyObject *
- PySocketSock_connect_ex(PySocketSockObject *s, PyObject *args)
- {
- struct sockaddr *addr;
- int addrlen;
- int res;
- PyObject *addro;
- if (!PyArg_ParseTuple(args, "O:connect_ex", &addro))
- return NULL;
- if (!getsockaddrarg(s, addro, &addr, &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = connect(s->sock_fd, addr, addrlen);
- Py_END_ALLOW_THREADS
- if (res != 0)
- res = errno;
- return PyInt_FromLong((long) res);
- }
-
- static char connect_ex_doc[] =
- "connect_ex(address)\n\
- \n\
- This is like connect(address), but returns an error code (the errno value)\n\
- instead of raising an exception when an error occurs.";
-
-
- /* s.fileno() method */
-
- static PyObject *
- PySocketSock_fileno(PySocketSockObject *s, PyObject *args)
- {
- if (!PyArg_ParseTuple(args, ":fileno"))
- return NULL;
- #if SIZEOF_SOCKET_T <= SIZEOF_LONG
- return PyInt_FromLong((long) s->sock_fd);
- #else
- return PyLong_FromLongLong((LONG_LONG)s->sock_fd);
- #endif
- }
-
- static char fileno_doc[] =
- "fileno() -> integer\n\
- \n\
- Return the integer file descriptor of the socket.";
-
-
- #ifndef NO_DUP
- /* s.dup() method */
-
- static PyObject *
- PySocketSock_dup(PySocketSockObject *s, PyObject *args)
- {
- SOCKET_T newfd;
- PyObject *sock;
- if (!PyArg_ParseTuple(args, ":dup"))
- return NULL;
- newfd = dup(s->sock_fd);
- if (newfd < 0)
- return PySocket_Err();
- sock = (PyObject *) PySocketSock_New(newfd,
- s->sock_family,
- s->sock_type,
- s->sock_proto);
- if (sock == NULL)
- SOCKETCLOSE(newfd);
- return sock;
- }
-
- static char dup_doc[] =
- "dup() -> socket object\n\
- \n\
- Return a new socket object connected to the same system resource.";
-
- #endif
-
-
- /* s.getsockname() method */
-
- static PyObject *
- PySocketSock_getsockname(PySocketSockObject *s, PyObject *args)
- {
- char addrbuf[256];
- int res;
- socklen_t addrlen;
-
- if (!PyArg_ParseTuple(args, ":getsockname"))
- return NULL;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- memset(addrbuf, 0, addrlen);
- Py_BEGIN_ALLOW_THREADS
- res = getsockname(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- return makesockaddr((struct sockaddr *) addrbuf, addrlen);
- }
-
- static char getsockname_doc[] =
- "getsockname() -> address info\n\
- \n\
- Return the address of the local endpoint. For IP sockets, the address\n\
- info is a pair (hostaddr, port).";
-
-
- #ifdef HAVE_GETPEERNAME /* Cray APP doesn't have this :-( */
- /* s.getpeername() method */
-
- static PyObject *
- PySocketSock_getpeername(PySocketSockObject *s, PyObject *args)
- {
- char addrbuf[256];
- int res;
- socklen_t addrlen;
-
- if (!PyArg_ParseTuple(args, ":getpeername"))
- return NULL;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = getpeername(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- return makesockaddr((struct sockaddr *) addrbuf, addrlen);
- }
-
- static char getpeername_doc[] =
- "getpeername() -> address info\n\
- \n\
- Return the address of the remote endpoint. For IP sockets, the address\n\
- info is a pair (hostaddr, port).";
-
- #endif /* HAVE_GETPEERNAME */
-
-
- /* s.listen(n) method */
-
- static PyObject *
- PySocketSock_listen(PySocketSockObject *s, PyObject *args)
- {
- int backlog;
- int res;
- if (!PyArg_ParseTuple(args, "i:listen", &backlog))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- if (backlog < 1)
- backlog = 1;
- res = listen(s->sock_fd, backlog);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char listen_doc[] =
- "listen(backlog)\n\
- \n\
- Enable a server to accept connections. The backlog argument must be at\n\
- least 1; it specifies the number of unaccepted connection that the system\n\
- will allow before refusing new connections.";
-
-
- #ifndef NO_DUP
- /* s.makefile(mode) method.
- Create a new open file object referring to a dupped version of
- the socket's file descriptor. (The dup() call is necessary so
- that the open file and socket objects may be closed independent
- of each other.)
- The mode argument specifies 'r' or 'w' passed to fdopen(). */
-
- static PyObject *
- PySocketSock_makefile(PySocketSockObject *s, PyObject *args)
- {
- extern int fclose(FILE *);
- char *mode = "r";
- int bufsize = -1;
- #ifdef MS_WIN32
- intptr_t fd;
- #else
- int fd;
- #endif
- FILE *fp;
- PyObject *f;
-
- if (!PyArg_ParseTuple(args, "|si:makefile", &mode, &bufsize))
- return NULL;
- #ifdef MS_WIN32
- if (((fd = _open_osfhandle(s->sock_fd, _O_BINARY)) < 0) ||
- ((fd = dup(fd)) < 0) || ((fp = fdopen(fd, mode)) == NULL))
- #else
- if ((fd = dup(s->sock_fd)) < 0 || (fp = fdopen(fd, mode)) == NULL)
- #endif
- {
- if (fd >= 0)
- SOCKETCLOSE(fd);
- return PySocket_Err();
- }
- f = PyFile_FromFile(fp, "<socket>", mode, fclose);
- if (f != NULL)
- PyFile_SetBufSize(f, bufsize);
- return f;
- }
-
- static char makefile_doc[] =
- "makefile([mode[, buffersize]]) -> file object\n\
- \n\
- Return a regular file object corresponding to the socket.\n\
- The mode and buffersize arguments are as for the built-in open() function.";
-
- #endif /* NO_DUP */
-
-
- /* s.recv(nbytes [,flags]) method */
-
- static PyObject *
- PySocketSock_recv(PySocketSockObject *s, PyObject *args)
- {
- int len, n, flags = 0;
- PyObject *buf;
- if (!PyArg_ParseTuple(args, "i|i:recv", &len, &flags))
- return NULL;
- buf = PyString_FromStringAndSize((char *) 0, len);
- if (buf == NULL)
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- n = recv(s->sock_fd, PyString_AsString(buf), len, flags);
- Py_END_ALLOW_THREADS
- if (n < 0) {
- Py_DECREF(buf);
- return PySocket_Err();
- }
- if (n != len && _PyString_Resize(&buf, n) < 0)
- return NULL;
- return buf;
- }
-
- static char recv_doc[] =
- "recv(buffersize[, flags]) -> data\n\
- \n\
- Receive up to buffersize bytes from the socket. For the optional flags\n\
- argument, see the Unix manual. When no data is available, block until\n\
- at least one byte is available or until the remote end is closed. When\n\
- the remote end is closed and all data is read, return the empty string.";
-
-
- /* s.recvfrom(nbytes [,flags]) method */
-
- static PyObject *
- PySocketSock_recvfrom(PySocketSockObject *s, PyObject *args)
- {
- char addrbuf[256];
- PyObject *buf = NULL;
- PyObject *addr = NULL;
- PyObject *ret = NULL;
-
- int len, n, flags = 0;
- socklen_t addrlen;
- if (!PyArg_ParseTuple(args, "i|i:recvfrom", &len, &flags))
- return NULL;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- buf = PyString_FromStringAndSize((char *) 0, len);
- if (buf == NULL)
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- n = recvfrom(s->sock_fd, PyString_AsString(buf), len, flags,
- #ifndef MS_WINDOWS
- #if defined(PYOS_OS2)
- (struct sockaddr *)addrbuf, &addrlen
- #else
- (void *)addrbuf, &addrlen
- #endif
- #else
- (struct sockaddr *)addrbuf, &addrlen
- #endif
- );
- Py_END_ALLOW_THREADS
- if (n < 0) {
- Py_DECREF(buf);
- return PySocket_Err();
- }
- if (n != len && _PyString_Resize(&buf, n) < 0)
- return NULL;
-
- if (!(addr = makesockaddr((struct sockaddr *)addrbuf, addrlen)))
- goto finally;
-
- ret = Py_BuildValue("OO", buf, addr);
- finally:
- Py_XDECREF(addr);
- Py_XDECREF(buf);
- return ret;
- }
-
- static char recvfrom_doc[] =
- "recvfrom(buffersize[, flags]) -> (data, address info)\n\
- \n\
- Like recv(buffersize, flags) but also return the sender's address info.";
-
-
- /* s.send(data [,flags]) method */
-
- static PyObject *
- PySocketSock_send(PySocketSockObject *s, PyObject *args)
- {
- char *buf;
- int len, n, flags = 0;
- if (!PyArg_ParseTuple(args, "s#|i:send", &buf, &len, &flags))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- n = send(s->sock_fd, buf, len, flags);
- Py_END_ALLOW_THREADS
- if (n < 0)
- return PySocket_Err();
- return PyInt_FromLong((long)n);
- }
-
- static char send_doc[] =
- "send(data[, flags])\n\
- \n\
- Send a data string to the socket. For the optional flags\n\
- argument, see the Unix manual.";
-
-
- /* s.sendto(data, [flags,] sockaddr) method */
-
- static PyObject *
- PySocketSock_sendto(PySocketSockObject *s, PyObject *args)
- {
- PyObject *addro;
- char *buf;
- struct sockaddr *addr;
- int addrlen, len, n, flags;
- flags = 0;
- if (!PyArg_ParseTuple(args, "s#O:sendto", &buf, &len, &addro)) {
- PyErr_Clear();
- if (!PyArg_ParseTuple(args, "s#iO:sendto",
- &buf, &len, &flags, &addro))
- return NULL;
- }
- if (!getsockaddrarg(s, addro, &addr, &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- n = sendto(s->sock_fd, buf, len, flags, addr, addrlen);
- Py_END_ALLOW_THREADS
- if (n < 0)
- return PySocket_Err();
- return PyInt_FromLong((long)n);
- }
-
- static char sendto_doc[] =
- "sendto(data[, flags], address)\n\
- \n\
- Like send(data, flags) but allows specifying the destination address.\n\
- For IP sockets, the address is a pair (hostaddr, port).";
-
-
- /* s.shutdown(how) method */
-
- static PyObject *
- PySocketSock_shutdown(PySocketSockObject *s, PyObject *args)
- {
- int how;
- int res;
- if (!PyArg_ParseTuple(args, "i:shutdown", &how))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = shutdown(s->sock_fd, how);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- Py_INCREF(Py_None);
- return Py_None;
- }
-
- static char shutdown_doc[] =
- "shutdown(flag)\n\
- \n\
- Shut down the reading side of the socket (flag == 0), the writing side\n\
- of the socket (flag == 1), or both ends (flag == 2).";
-
-
- /* List of methods for socket objects */
-
- static PyMethodDef PySocketSock_methods[] = {
- {"accept", (PyCFunction)PySocketSock_accept, METH_VARARGS,
- accept_doc},
- {"bind", (PyCFunction)PySocketSock_bind, METH_VARARGS,
- bind_doc},
- {"close", (PyCFunction)PySocketSock_close, METH_VARARGS,
- close_doc},
- {"connect", (PyCFunction)PySocketSock_connect, METH_VARARGS,
- connect_doc},
- {"connect_ex", (PyCFunction)PySocketSock_connect_ex, METH_VARARGS,
- connect_ex_doc},
- #ifndef NO_DUP
- {"dup", (PyCFunction)PySocketSock_dup, METH_VARARGS,
- dup_doc},
- #endif
- {"fileno", (PyCFunction)PySocketSock_fileno, METH_VARARGS,
- fileno_doc},
- #ifdef HAVE_GETPEERNAME
- {"getpeername", (PyCFunction)PySocketSock_getpeername, METH_VARARGS,
- getpeername_doc},
- #endif
- {"getsockname", (PyCFunction)PySocketSock_getsockname, METH_VARARGS,
- getsockname_doc},
- {"getsockopt", (PyCFunction)PySocketSock_getsockopt, METH_VARARGS,
- getsockopt_doc},
- {"listen", (PyCFunction)PySocketSock_listen, METH_VARARGS,
- listen_doc},
- #ifndef NO_DUP
- {"makefile", (PyCFunction)PySocketSock_makefile, METH_VARARGS,
- makefile_doc},
- #endif
- {"recv", (PyCFunction)PySocketSock_recv, METH_VARARGS,
- recv_doc},
- {"recvfrom", (PyCFunction)PySocketSock_recvfrom, METH_VARARGS,
- recvfrom_doc},
- {"send", (PyCFunction)PySocketSock_send, METH_VARARGS,
- send_doc},
- {"sendto", (PyCFunction)PySocketSock_sendto, METH_VARARGS,
- sendto_doc},
- {"setblocking", (PyCFunction)PySocketSock_setblocking, METH_VARARGS,
- setblocking_doc},
- {"setsockopt", (PyCFunction)PySocketSock_setsockopt, METH_VARARGS,
- setsockopt_doc},
- {"shutdown", (PyCFunction)PySocketSock_shutdown, METH_VARARGS,
- shutdown_doc},
- {NULL, NULL} /* sentinel */
- };
-
-
- /* Deallocate a socket object in response to the last Py_DECREF().
- First close the file description. */
-
- static void
- PySocketSock_dealloc(PySocketSockObject *s)
- {
- if (s->sock_fd != -1)
- (void) SOCKETCLOSE(s->sock_fd);
- PyObject_Del(s);
- }
-
-
- /* Return a socket object's named attribute. */
-
- static PyObject *
- PySocketSock_getattr(PySocketSockObject *s, char *name)
- {
- return Py_FindMethod(PySocketSock_methods, (PyObject *) s, name);
- }
-
-
- static PyObject *
- PySocketSock_repr(PySocketSockObject *s)
- {
- char buf[512];
- #if SIZEOF_SOCKET_T > SIZEOF_LONG
- if (s->sock_fd > LONG_MAX) {
- /* this can occur on Win64, and actually there is a special
- ugly printf formatter for decimal pointer length integer
- printing, only bother if necessary*/
- PyErr_SetString(PyExc_OverflowError,
- "no printf formatter to display the socket descriptor in decimal");
- return NULL;
- }
- #endif
- sprintf(buf,
- "<socket object, fd=%ld, family=%d, type=%d, protocol=%d>",
- (long)s->sock_fd, s->sock_family, s->sock_type, s->sock_proto);
- return PyString_FromString(buf);
- }
-
-
- /* Type object for socket objects. */
-
- static PyTypeObject PySocketSock_Type = {
- PyObject_HEAD_INIT(0) /* Must fill in type value later */
- 0,
- "socket",
- sizeof(PySocketSockObject),
- 0,
- (destructor)PySocketSock_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- (getattrfunc)PySocketSock_getattr, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- (reprfunc)PySocketSock_repr, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- };
-
-
- /* Python interface to gethostname(). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_gethostname(PyObject *self, PyObject *args)
- {
- char buf[1024];
- int res;
- if (!PyArg_ParseTuple(args, ":gethostname"))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = gethostname(buf, (int) sizeof buf - 1);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return PySocket_Err();
- buf[sizeof buf - 1] = '\0';
- return PyString_FromString(buf);
- }
-
- static char gethostname_doc[] =
- "gethostname() -> string\n\
- \n\
- Return the current host name.";
-
-
- /* Python interface to gethostbyname(name). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_gethostbyname(PyObject *self, PyObject *args)
- {
- char *name;
- struct sockaddr_in addrbuf;
- if (!PyArg_ParseTuple(args, "s:gethostbyname", &name))
- return NULL;
- if (setipaddr(name, &addrbuf) < 0)
- return NULL;
- return makeipaddr(&addrbuf);
- }
-
- static char gethostbyname_doc[] =
- "gethostbyname(host) -> address\n\
- \n\
- Return the IP address (a string of the form '255.255.255.255') for a host.";
-
-
- /* Convenience function common to gethostbyname_ex and gethostbyaddr */
-
- static PyObject *
- gethost_common(struct hostent *h, struct sockaddr_in *addr)
- {
- char **pch;
- PyObject *rtn_tuple = (PyObject *)NULL;
- PyObject *name_list = (PyObject *)NULL;
- PyObject *addr_list = (PyObject *)NULL;
- PyObject *tmp;
- if (h == NULL) {
- #ifdef HAVE_HSTRERROR
- /* Let's get real error message to return */
- extern int h_errno;
- PyErr_SetString(PySocket_Error, (char *)hstrerror(h_errno));
- #else
- PyErr_SetString(PySocket_Error, "host not found");
- #endif
- return NULL;
- }
- if ((name_list = PyList_New(0)) == NULL)
- goto err;
- if ((addr_list = PyList_New(0)) == NULL)
- goto err;
- for (pch = h->h_aliases; *pch != NULL; pch++) {
- int status;
- tmp = PyString_FromString(*pch);
- if (tmp == NULL)
- goto err;
- status = PyList_Append(name_list, tmp);
- Py_DECREF(tmp);
- if (status)
- goto err;
- }
- for (pch = h->h_addr_list; *pch != NULL; pch++) {
- int status;
- memcpy((char *) &addr->sin_addr, *pch, h->h_length);
- tmp = makeipaddr(addr);
- if (tmp == NULL)
- goto err;
- status = PyList_Append(addr_list, tmp);
- Py_DECREF(tmp);
- if (status)
- goto err;
- }
- rtn_tuple = Py_BuildValue("sOO", h->h_name, name_list, addr_list);
- err:
- Py_XDECREF(name_list);
- Py_XDECREF(addr_list);
- return rtn_tuple;
- }
-
-
- /* Python interface to gethostbyname_ex(name). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_gethostbyname_ex(PyObject *self, PyObject *args)
- {
- char *name;
- struct hostent *h;
- struct sockaddr_in addr;
- PyObject *ret;
- #ifdef HAVE_GETHOSTBYNAME_R
- struct hostent hp_allocated;
- #ifdef HAVE_GETHOSTBYNAME_R_3_ARG
- struct hostent_data data;
- #else
- char buf[16384];
- int buf_len = (sizeof buf) - 1;
- int errnop;
- #endif
- #if defined(HAVE_GETHOSTBYNAME_R_3_ARG) || defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- int result;
- #endif
- #endif /* HAVE_GETHOSTBYNAME_R */
- if (!PyArg_ParseTuple(args, "s:gethostbyname_ex", &name))
- return NULL;
- if (setipaddr(name, &addr) < 0)
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- #ifdef HAVE_GETHOSTBYNAME_R
- #if defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- result = gethostbyname_r(name, &hp_allocated, buf, buf_len, &h, &errnop);
- #elif defined(HAVE_GETHOSTBYNAME_R_5_ARG)
- h = gethostbyname_r(name, &hp_allocated, buf, buf_len, &errnop);
- #else /* HAVE_GETHOSTBYNAME_R_3_ARG */
- memset((void *) &data, '\0', sizeof(data));
- result = gethostbyname_r(name, &hp_allocated, &data);
- h = (result != 0) ? NULL : &hp_allocated;
- #endif
- #else /* not HAVE_GETHOSTBYNAME_R */
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_acquire_lock(gethostbyname_lock, 1);
- #endif
- h = gethostbyname(name);
- #endif /* HAVE_GETHOSTBYNAME_R */
- Py_END_ALLOW_THREADS
- ret = gethost_common(h, &addr);
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_release_lock(gethostbyname_lock);
- #endif
- return ret;
- }
-
- static char ghbn_ex_doc[] =
- "gethostbyname_ex(host) -> (name, aliaslist, addresslist)\n\
- \n\
- Return the true host name, a list of aliases, and a list of IP addresses,\n\
- for a host. The host argument is a string giving a host name or IP number.";
-
-
- /* Python interface to gethostbyaddr(IP). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_gethostbyaddr(PyObject *self, PyObject *args)
- {
- struct sockaddr_in addr;
- char *ip_num;
- struct hostent *h;
- PyObject *ret;
- #ifdef HAVE_GETHOSTBYNAME_R
- struct hostent hp_allocated;
- #ifdef HAVE_GETHOSTBYNAME_R_3_ARG
- struct hostent_data data;
- #else
- char buf[16384];
- int buf_len = (sizeof buf) - 1;
- int errnop;
- #endif
- #if defined(HAVE_GETHOSTBYNAME_R_3_ARG) || defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- int result;
- #endif
- #endif /* HAVE_GETHOSTBYNAME_R */
-
- if (!PyArg_ParseTuple(args, "s:gethostbyaddr", &ip_num))
- return NULL;
- if (setipaddr(ip_num, &addr) < 0)
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- #ifdef HAVE_GETHOSTBYNAME_R
- #if defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- result = gethostbyaddr_r((char *)&addr.sin_addr,
- sizeof(addr.sin_addr),
- AF_INET, &hp_allocated, buf, buf_len,
- &h, &errnop);
- #elif defined(HAVE_GETHOSTBYNAME_R_5_ARG)
- h = gethostbyaddr_r((char *)&addr.sin_addr,
- sizeof(addr.sin_addr),
- AF_INET,
- &hp_allocated, buf, buf_len, &errnop);
- #else /* HAVE_GETHOSTBYNAME_R_3_ARG */
- memset((void *) &data, '\0', sizeof(data));
- result = gethostbyaddr_r((char *)&addr.sin_addr,
- sizeof(addr.sin_addr),
- AF_INET, &hp_allocated, &data);
- h = (result != 0) ? NULL : &hp_allocated;
- #endif
- #else /* not HAVE_GETHOSTBYNAME_R */
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_acquire_lock(gethostbyname_lock, 1);
- #endif
- h = gethostbyaddr((char *)&addr.sin_addr,
- sizeof(addr.sin_addr),
- AF_INET);
- #endif /* HAVE_GETHOSTBYNAME_R */
- Py_END_ALLOW_THREADS
- ret = gethost_common(h, &addr);
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_release_lock(gethostbyname_lock);
- #endif
- return ret;
- }
-
- static char gethostbyaddr_doc[] =
- "gethostbyaddr(host) -> (name, aliaslist, addresslist)\n\
- \n\
- Return the true host name, a list of aliases, and a list of IP addresses,\n\
- for a host. The host argument is a string giving a host name or IP number.";
-
-
- /* Python interface to getservbyname(name).
- This only returns the port number, since the other info is already
- known or not useful (like the list of aliases). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_getservbyname(PyObject *self, PyObject *args)
- {
- char *name, *proto;
- struct servent *sp;
- if (!PyArg_ParseTuple(args, "ss:getservbyname", &name, &proto))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- sp = getservbyname(name, proto);
- Py_END_ALLOW_THREADS
- if (sp == NULL) {
- PyErr_SetString(PySocket_Error, "service/proto not found");
- return NULL;
- }
- return PyInt_FromLong((long) ntohs(sp->s_port));
- }
-
- static char getservbyname_doc[] =
- "getservbyname(servicename, protocolname) -> integer\n\
- \n\
- Return a port number from a service name and protocol name.\n\
- The protocol name should be 'tcp' or 'udp'.";
-
-
- /* Python interface to getprotobyname(name).
- This only returns the protocol number, since the other info is
- already known or not useful (like the list of aliases). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_getprotobyname(PyObject *self, PyObject *args)
- {
- char *name;
- struct protoent *sp;
- #ifdef __BEOS__
- /* Not available in BeOS yet. - [cjh] */
- PyErr_SetString( PySocket_Error, "getprotobyname not supported" );
- return NULL;
- #else
- if (!PyArg_ParseTuple(args, "s:getprotobyname", &name))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- sp = getprotobyname(name);
- Py_END_ALLOW_THREADS
- if (sp == NULL) {
- PyErr_SetString(PySocket_Error, "protocol not found");
- return NULL;
- }
- return PyInt_FromLong((long) sp->p_proto);
- #endif
- }
-
- static char getprotobyname_doc[] =
- "getprotobyname(name) -> integer\n\
- \n\
- Return the protocol number for the named protocol. (Rarely used.)";
-
-
- /* Python interface to socket(family, type, proto).
- The third (protocol) argument is optional.
- Return a new socket object. */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_socket(PyObject *self, PyObject *args)
- {
- PySocketSockObject *s;
- SOCKET_T fd;
- int family, type, proto = 0;
- if (!PyArg_ParseTuple(args, "ii|i:socket", &family, &type, &proto))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- fd = socket(family, type, proto);
- Py_END_ALLOW_THREADS
- #ifdef MS_WINDOWS
- if (fd == INVALID_SOCKET)
- #else
- if (fd < 0)
- #endif
- return PySocket_Err();
- s = PySocketSock_New(fd, family, type, proto);
- /* If the object can't be created, don't forget to close the
- file descriptor again! */
- if (s == NULL)
- (void) SOCKETCLOSE(fd);
- /* From now on, ignore SIGPIPE and let the error checking
- do the work. */
- #ifdef SIGPIPE
- (void) signal(SIGPIPE, SIG_IGN);
- #endif
- return (PyObject *) s;
- }
-
- static char socket_doc[] =
- "socket(family, type[, proto]) -> socket object\n\
- \n\
- Open a socket of the given type. The family argument specifies the\n\
- address family; it is normally AF_INET, sometimes AF_UNIX.\n\
- The type argument specifies whether this is a stream (SOCK_STREAM)\n\
- or datagram (SOCK_DGRAM) socket. The protocol argument defaults to 0,\n\
- specifying the default protocol.";
-
-
- #ifndef NO_DUP
- /* Create a socket object from a numeric file description.
- Useful e.g. if stdin is a socket.
- Additional arguments as for socket(). */
-
- /*ARGSUSED*/
- static PyObject *
- PySocket_fromfd(PyObject *self, PyObject *args)
- {
- PySocketSockObject *s;
- SOCKET_T fd;
- int family, type, proto = 0;
- if (!PyArg_ParseTuple(args, "iii|i:fromfd",
- &fd, &family, &type, &proto))
- return NULL;
- /* Dup the fd so it and the socket can be closed independently */
- fd = dup(fd);
- if (fd < 0)
- return PySocket_Err();
- s = PySocketSock_New(fd, family, type, proto);
- /* From now on, ignore SIGPIPE and let the error checking
- do the work. */
- #ifdef SIGPIPE
- (void) signal(SIGPIPE, SIG_IGN);
- #endif
- return (PyObject *) s;
- }
-
- static char fromfd_doc[] =
- "fromfd(fd, family, type[, proto]) -> socket object\n\
- \n\
- Create a socket object from the given file descriptor.\n\
- The remaining arguments are the same as for socket().";
-
- #endif /* NO_DUP */
-
-
- static PyObject *
- PySocket_ntohs(PyObject *self, PyObject *args)
- {
- int x1, x2;
-
- if (!PyArg_ParseTuple(args, "i:ntohs", &x1)) {
- return NULL;
- }
- x2 = (int)ntohs((short)x1);
- return PyInt_FromLong(x2);
- }
-
- static char ntohs_doc[] =
- "ntohs(integer) -> integer\n\
- \n\
- Convert a 16-bit integer from network to host byte order.";
-
-
- static PyObject *
- PySocket_ntohl(PyObject *self, PyObject *args)
- {
- int x1, x2;
-
- if (!PyArg_ParseTuple(args, "i:ntohl", &x1)) {
- return NULL;
- }
- x2 = ntohl(x1);
- return PyInt_FromLong(x2);
- }
-
- static char ntohl_doc[] =
- "ntohl(integer) -> integer\n\
- \n\
- Convert a 32-bit integer from network to host byte order.";
-
-
- static PyObject *
- PySocket_htons(PyObject *self, PyObject *args)
- {
- int x1, x2;
-
- if (!PyArg_ParseTuple(args, "i:htons", &x1)) {
- return NULL;
- }
- x2 = (int)htons((short)x1);
- return PyInt_FromLong(x2);
- }
-
- static char htons_doc[] =
- "htons(integer) -> integer\n\
- \n\
- Convert a 16-bit integer from host to network byte order.";
-
-
- static PyObject *
- PySocket_htonl(PyObject *self, PyObject *args)
- {
- int x1, x2;
-
- if (!PyArg_ParseTuple(args, "i:htonl", &x1)) {
- return NULL;
- }
- x2 = htonl(x1);
- return PyInt_FromLong(x2);
- }
-
- static char htonl_doc[] =
- "htonl(integer) -> integer\n\
- \n\
- Convert a 32-bit integer from host to network byte order.";
-
- /*
- * socket.inet_aton() and socket.inet_ntoa() functions
- *
- * written 20 Aug 1999 by Ben Gertzfield <che@debian.org> <- blame him!
- *
- */
-
- static char inet_aton_doc[] =
- "inet_aton(string) -> packed 32-bit IP representation\n\
- \n\
- Convert an IP address in string format (123.45.67.89) to the 32-bit packed\n\
- binary format used in low-level network functions.";
-
- static PyObject*
- PySocket_inet_aton(PyObject *self, PyObject *args)
- {
- #ifndef INADDR_NONE
- #define INADDR_NONE (-1)
- #endif
-
- /* Have to use inet_addr() instead */
- char *ip_addr;
- long packed_addr;
-
- if (!PyArg_ParseTuple(args, "s:inet_aton", &ip_addr)) {
- return NULL;
- }
- #ifdef USE_GUSI1
- packed_addr = (long)inet_addr(ip_addr).s_addr;
- #else
- packed_addr = inet_addr(ip_addr);
- #endif
-
- if (packed_addr == INADDR_NONE) { /* invalid address */
- PyErr_SetString(PySocket_Error,
- "illegal IP address string passed to inet_aton");
- return NULL;
- }
-
- return PyString_FromStringAndSize((char *) &packed_addr,
- sizeof(packed_addr));
- }
-
- static char inet_ntoa_doc[] =
- "inet_ntoa(packed_ip) -> ip_address_string\n\
- \n\
- Convert an IP address from 32-bit packed binary format to string format";
-
- static PyObject*
- PySocket_inet_ntoa(PyObject *self, PyObject *args)
- {
- char *packed_str;
- int addr_len;
- struct in_addr packed_addr;
-
- if (!PyArg_ParseTuple(args, "s#:inet_ntoa", &packed_str, &addr_len)) {
- return NULL;
- }
-
- if (addr_len != sizeof(packed_addr)) {
- PyErr_SetString(PySocket_Error,
- "packed IP wrong length for inet_ntoa");
- return NULL;
- }
-
- memcpy(&packed_addr, packed_str, addr_len);
-
- return PyString_FromString(inet_ntoa(packed_addr));
- }
-
-
- #ifdef USE_SSL
-
- /* This is a C function to be called for new object initialization */
- static SSLObject *
- newSSLObject(PySocketSockObject *Sock, char *key_file, char *cert_file)
- {
- SSLObject *self;
-
- self = PyObject_New(SSLObject, &SSL_Type); /* Create new object */
- if (self == NULL){
- PyErr_SetObject(SSLErrorObject,
- PyString_FromString("newSSLObject error"));
- return NULL;
- }
- memset(self->server, '\0', sizeof(char) * 256);
- memset(self->issuer, '\0', sizeof(char) * 256);
-
- self->x_attr = PyDict_New();
- self->ctx = SSL_CTX_new(SSLv23_method()); /* Set up context */
- if (self->ctx == NULL) {
- PyErr_SetObject(SSLErrorObject,
- PyString_FromString("SSL_CTX_new error"));
- PyObject_Del(self);
- return NULL;
- }
-
- if ( (key_file && !cert_file) || (!key_file && cert_file) )
- {
- PyErr_SetObject(SSLErrorObject,
- PyString_FromString(
- "Both the key & certificate files must be specified"));
- PyObject_Del(self);
- return NULL;
- }
-
- if (key_file && cert_file)
- {
- if (SSL_CTX_use_PrivateKey_file(self->ctx, key_file,
- SSL_FILETYPE_PEM) < 1)
- {
- PyErr_SetObject(SSLErrorObject,
- PyString_FromString(
- "SSL_CTX_use_PrivateKey_file error"));
- PyObject_Del(self);
- return NULL;
- }
-
- if (SSL_CTX_use_certificate_chain_file(self->ctx,
- cert_file) < 1)
- {
- PyErr_SetObject(SSLErrorObject,
- PyString_FromString(
- "SSL_CTX_use_certificate_chain_file error"));
- PyObject_Del(self);
- return NULL;
- }
- }
-
- SSL_CTX_set_verify(self->ctx,
- SSL_VERIFY_NONE, NULL); /* set verify lvl */
- self->ssl = SSL_new(self->ctx); /* New ssl struct */
- SSL_set_fd(self->ssl, Sock->sock_fd); /* Set the socket for SSL */
- SSL_set_connect_state(self->ssl);
-
- if ((SSL_connect(self->ssl)) == -1) {
- /* Actually negotiate SSL connection */
- PyErr_SetObject(SSLErrorObject,
- PyString_FromString("SSL_connect error"));
- PyObject_Del(self);
- return NULL;
- }
- self->ssl->debug = 1;
-
- if ((self->server_cert = SSL_get_peer_certificate(self->ssl))) {
- X509_NAME_oneline(X509_get_subject_name(self->server_cert),
- self->server, 256);
- X509_NAME_oneline(X509_get_issuer_name(self->server_cert),
- self->issuer, 256);
- }
- self->x_attr = NULL;
- self->Socket = Sock;
- Py_INCREF(self->Socket);
- return self;
- }
-
- /* This is the Python function called for new object initialization */
- static PyObject *
- PySocket_ssl(PyObject *self, PyObject *args)
- {
- SSLObject *rv;
- PySocketSockObject *Sock;
- char *key_file;
- char *cert_file;
-
- if (!PyArg_ParseTuple(args, "O!zz:ssl",
- &PySocketSock_Type, (PyObject*)&Sock,
- &key_file, &cert_file) )
- return NULL;
-
- rv = newSSLObject(Sock, key_file, cert_file);
- if ( rv == NULL )
- return NULL;
- return (PyObject *)rv;
- }
-
- static char ssl_doc[] =
- "ssl(socket, keyfile, certfile) -> sslobject";
-
- static PyObject *
- SSL_server(SSLObject *self, PyObject *args)
- {
- return PyString_FromString(self->server);
- }
-
- static PyObject *
- SSL_issuer(SSLObject *self, PyObject *args)
- {
- return PyString_FromString(self->issuer);
- }
-
-
- /* SSL object methods */
-
- static PyMethodDef SSLMethods[] = {
- { "write", (PyCFunction)SSL_SSLwrite, 1 },
- { "read", (PyCFunction)SSL_SSLread, 1 },
- { "server", (PyCFunction)SSL_server, 1 },
- { "issuer", (PyCFunction)SSL_issuer, 1 },
- { NULL, NULL}
- };
-
- static void SSL_dealloc(SSLObject *self)
- {
- if (self->server_cert) /* Possible not to have one? */
- X509_free (self->server_cert);
- SSL_CTX_free(self->ctx);
- SSL_free(self->ssl);
- Py_XDECREF(self->x_attr);
- Py_XDECREF(self->Socket);
- PyObject_Del(self);
- }
-
- static PyObject *SSL_getattr(SSLObject *self, char *name)
- {
- return Py_FindMethod(SSLMethods, (PyObject *)self, name);
- }
-
- staticforward PyTypeObject SSL_Type = {
- PyObject_HEAD_INIT(&PyType_Type)
- 0, /*ob_size*/
- "SSL", /*tp_name*/
- sizeof(SSLObject), /*tp_basicsize*/
- 0, /*tp_itemsize*/
- /* methods */
- (destructor)SSL_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- (getattrfunc)SSL_getattr, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- 0, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- 0, /*tp_hash*/
- };
-
-
-
- static PyObject *SSL_SSLwrite(SSLObject *self, PyObject *args)
- {
- char *data;
- size_t len = 0;
-
- if (!PyArg_ParseTuple(args, "s|i:write", &data, &len))
- return NULL;
-
- if (!len)
- len = strlen(data);
-
- len = SSL_write(self->ssl, data, len);
- return PyInt_FromLong((long)len);
- }
-
- static PyObject *SSL_SSLread(SSLObject *self, PyObject *args)
- {
- PyObject *buf;
- int count = 0;
- int len = 1024;
- int res;
-
- PyArg_ParseTuple(args, "|i:read", &len);
-
- if (!(buf = PyString_FromStringAndSize((char *) 0, len)))
- return NULL; /* Error object should already be set */
-
- count = SSL_read(self->ssl, PyString_AsString(buf), len);
- res = SSL_get_error(self->ssl, count);
-
- switch (res) {
- case 0: /* Good return value! */
- break;
- case 6:
- PyErr_SetString(SSLErrorObject, "EOF");
- Py_DECREF(buf);
- return NULL;
- break;
- case 5:
- default:
- return PyErr_SetFromErrno(SSLErrorObject);
- break;
- }
-
- fflush(stderr);
-
- if (count < 0) {
- Py_DECREF(buf);
- return PyErr_SetFromErrno(SSLErrorObject);
- }
-
- if (count != len && _PyString_Resize(&buf, count) < 0)
- return NULL;
- return buf;
- }
-
- #endif /* USE_SSL */
-
-
- /* List of functions exported by this module. */
-
- static PyMethodDef PySocket_methods[] = {
- {"gethostbyname", PySocket_gethostbyname,
- METH_VARARGS, gethostbyname_doc},
- {"gethostbyname_ex", PySocket_gethostbyname_ex,
- METH_VARARGS, ghbn_ex_doc},
- {"gethostbyaddr", PySocket_gethostbyaddr,
- METH_VARARGS, gethostbyaddr_doc},
- {"gethostname", PySocket_gethostname,
- METH_VARARGS, gethostname_doc},
- {"getservbyname", PySocket_getservbyname,
- METH_VARARGS, getservbyname_doc},
- {"getprotobyname", PySocket_getprotobyname,
- METH_VARARGS,getprotobyname_doc},
- {"socket", PySocket_socket,
- METH_VARARGS, socket_doc},
- #ifndef NO_DUP
- {"fromfd", PySocket_fromfd,
- METH_VARARGS, fromfd_doc},
- #endif
- {"ntohs", PySocket_ntohs,
- METH_VARARGS, ntohs_doc},
- {"ntohl", PySocket_ntohl,
- METH_VARARGS, ntohl_doc},
- {"htons", PySocket_htons,
- METH_VARARGS, htons_doc},
- {"htonl", PySocket_htonl,
- METH_VARARGS, htonl_doc},
- {"inet_aton", PySocket_inet_aton,
- METH_VARARGS, inet_aton_doc},
- {"inet_ntoa", PySocket_inet_ntoa,
- METH_VARARGS, inet_ntoa_doc},
- #ifdef USE_SSL
- {"ssl", PySocket_ssl,
- METH_VARARGS, ssl_doc},
- #endif /* USE_SSL */
- {NULL, NULL} /* Sentinel */
- };
-
-
- /* Convenience routine to export an integer value.
- *
- * Errors are silently ignored, for better or for worse...
- */
- static void
- insint(PyObject *d, char *name, int value)
- {
- PyObject *v = PyInt_FromLong((long) value);
- if (!v || PyDict_SetItemString(d, name, v))
- PyErr_Clear();
-
- Py_XDECREF(v);
- }
-
-
- #ifdef MS_WINDOWS
-
- /* Additional initialization and cleanup for NT/Windows */
-
- static void
- NTcleanup(void)
- {
- WSACleanup();
- }
-
- static int
- NTinit(void)
- {
- WSADATA WSAData;
- int ret;
- char buf[100];
- ret = WSAStartup(0x0101, &WSAData);
- switch (ret) {
- case 0: /* no error */
- atexit(NTcleanup);
- return 1;
- case WSASYSNOTREADY:
- PyErr_SetString(PyExc_ImportError,
- "WSAStartup failed: network not ready");
- break;
- case WSAVERNOTSUPPORTED:
- case WSAEINVAL:
- PyErr_SetString(PyExc_ImportError,
- "WSAStartup failed: requested version not supported");
- break;
- default:
- sprintf(buf, "WSAStartup failed: error code %d", ret);
- PyErr_SetString(PyExc_ImportError, buf);
- break;
- }
- return 0;
- }
-
- #endif /* MS_WINDOWS */
-
- #if defined(PYOS_OS2)
-
- /* Additional initialization and cleanup for OS/2 */
-
- static void
- OS2cleanup(void)
- {
- /* No cleanup is necessary for OS/2 Sockets */
- }
-
- static int
- OS2init(void)
- {
- char reason[64];
- int rc = sock_init();
-
- if (rc == 0) {
- atexit(OS2cleanup);
- return 1; /* Indicate Success */
- }
-
- sprintf(reason, "OS/2 TCP/IP Error# %d", sock_errno());
- PyErr_SetString(PyExc_ImportError, reason);
-
- return 0; /* Indicate Failure */
- }
-
- #endif /* PYOS_OS2 */
-
- /* Initialize this module.
- * This is called when the first 'import socket' is done,
- * via a table in config.c, if config.c is compiled with USE_SOCKET
- * defined.
- *
- * For MS_WINDOWS (which means any Windows variant), this module
- * is actually called "_socket", and there's a wrapper "socket.py"
- * which implements some missing functionality (such as makefile(),
- * dup() and fromfd()). The import of "_socket" may fail with an
- * ImportError exception if initialization of WINSOCK fails. When
- * WINSOCK is initialized succesfully, a call to WSACleanup() is
- * scheduled to be made at exit time.
- *
- * For OS/2, this module is also called "_socket" and uses a wrapper
- * "socket.py" which implements that functionality that is missing
- * when PC operating systems don't put socket descriptors in the
- * operating system's filesystem layer.
- */
-
- static char module_doc[] =
- "Implementation module for socket operations. See the socket module\n\
- for documentation.";
-
- static char sockettype_doc[] =
- "A socket represents one endpoint of a network connection.\n\
- \n\
- Methods:\n\
- \n\
- accept() -- accept a connection, returning new socket and client address\n\
- bind() -- bind the socket to a local address\n\
- close() -- close the socket\n\
- connect() -- connect the socket to a remote address\n\
- connect_ex() -- connect, return an error code instead of an exception \n\
- dup() -- return a new socket object identical to the current one (*)\n\
- fileno() -- return underlying file descriptor\n\
- getpeername() -- return remote address (*)\n\
- getsockname() -- return local address\n\
- getsockopt() -- get socket options\n\
- listen() -- start listening for incoming connections\n\
- makefile() -- return a file object corresponding tot the socket (*)\n\
- recv() -- receive data\n\
- recvfrom() -- receive data and sender's address\n\
- send() -- send data\n\
- sendto() -- send data to a given address\n\
- setblocking() -- set or clear the blocking I/O flag\n\
- setsockopt() -- set socket options\n\
- shutdown() -- shut down traffic in one or both directions\n\
- \n\
- (*) not available on all platforms!)";
-
- DL_EXPORT(void)
- init_socket(void)
- {
- PyObject *m, *d;
- #ifdef MS_WINDOWS
- if (!NTinit())
- return;
- #else
- #if defined(__TOS_OS2__)
- if (!OS2init())
- return;
- #endif /* __TOS_OS2__ */
- #endif /* MS_WINDOWS */
- m = Py_InitModule3("_socket", PySocket_methods, module_doc);
- d = PyModule_GetDict(m);
- PySocket_Error = PyErr_NewException("socket.error", NULL, NULL);
- if (PySocket_Error == NULL)
- return;
- #ifdef USE_SSL
- SSL_load_error_strings();
- SSLeay_add_ssl_algorithms();
- SSLErrorObject = PyErr_NewException("socket.sslerror", NULL, NULL);
- if (SSLErrorObject == NULL)
- return;
- PyDict_SetItemString(d, "sslerror", SSLErrorObject);
- Py_INCREF(&SSL_Type);
- if (PyDict_SetItemString(d, "SSLType",
- (PyObject *)&SSL_Type) != 0)
- return;
- #endif /* USE_SSL */
- PyDict_SetItemString(d, "error", PySocket_Error);
- PySocketSock_Type.ob_type = &PyType_Type;
- PySocketSock_Type.tp_doc = sockettype_doc;
- Py_INCREF(&PySocketSock_Type);
- if (PyDict_SetItemString(d, "SocketType",
- (PyObject *)&PySocketSock_Type) != 0)
- return;
-
- /* Address families (we only support AF_INET and AF_UNIX) */
- #ifdef AF_UNSPEC
- insint(d, "AF_UNSPEC", AF_UNSPEC);
- #endif
- insint(d, "AF_INET", AF_INET);
- #ifdef AF_UNIX
- insint(d, "AF_UNIX", AF_UNIX);
- #endif /* AF_UNIX */
- #ifdef AF_AX25
- insint(d, "AF_AX25", AF_AX25); /* Amateur Radio AX.25 */
- #endif
- #ifdef AF_IPX
- insint(d, "AF_IPX", AF_IPX); /* Novell IPX */
- #endif
- #ifdef AF_APPLETALK
- insint(d, "AF_APPLETALK", AF_APPLETALK); /* Appletalk DDP */
- #endif
- #ifdef AF_NETROM
- insint(d, "AF_NETROM", AF_NETROM); /* Amateur radio NetROM */
- #endif
- #ifdef AF_BRIDGE
- insint(d, "AF_BRIDGE", AF_BRIDGE); /* Multiprotocol bridge */
- #endif
- #ifdef AF_AAL5
- insint(d, "AF_AAL5", AF_AAL5); /* Reserved for Werner's ATM */
- #endif
- #ifdef AF_X25
- insint(d, "AF_X25", AF_X25); /* Reserved for X.25 project */
- #endif
- #ifdef AF_INET6
- insint(d, "AF_INET6", AF_INET6); /* IP version 6 */
- #endif
- #ifdef AF_ROSE
- insint(d, "AF_ROSE", AF_ROSE); /* Amateur Radio X.25 PLP */
- #endif
-
- /* Socket types */
- insint(d, "SOCK_STREAM", SOCK_STREAM);
- insint(d, "SOCK_DGRAM", SOCK_DGRAM);
- #ifndef __BEOS__
- /* We have incomplete socket support. */
- insint(d, "SOCK_RAW", SOCK_RAW);
- insint(d, "SOCK_SEQPACKET", SOCK_SEQPACKET);
- insint(d, "SOCK_RDM", SOCK_RDM);
- #endif
-
- #ifdef SO_DEBUG
- insint(d, "SO_DEBUG", SO_DEBUG);
- #endif
- #ifdef SO_ACCEPTCONN
- insint(d, "SO_ACCEPTCONN", SO_ACCEPTCONN);
- #endif
- #ifdef SO_REUSEADDR
- insint(d, "SO_REUSEADDR", SO_REUSEADDR);
- #endif
- #ifdef SO_KEEPALIVE
- insint(d, "SO_KEEPALIVE", SO_KEEPALIVE);
- #endif
- #ifdef SO_DONTROUTE
- insint(d, "SO_DONTROUTE", SO_DONTROUTE);
- #endif
- #ifdef SO_BROADCAST
- insint(d, "SO_BROADCAST", SO_BROADCAST);
- #endif
- #ifdef SO_USELOOPBACK
- insint(d, "SO_USELOOPBACK", SO_USELOOPBACK);
- #endif
- #ifdef SO_LINGER
- insint(d, "SO_LINGER", SO_LINGER);
- #endif
- #ifdef SO_OOBINLINE
- insint(d, "SO_OOBINLINE", SO_OOBINLINE);
- #endif
- #ifdef SO_REUSEPORT
- insint(d, "SO_REUSEPORT", SO_REUSEPORT);
- #endif
- #ifdef SO_SNDBUF
- insint(d, "SO_SNDBUF", SO_SNDBUF);
- #endif
- #ifdef SO_RCVBUF
- insint(d, "SO_RCVBUF", SO_RCVBUF);
- #endif
- #ifdef SO_SNDLOWAT
- insint(d, "SO_SNDLOWAT", SO_SNDLOWAT);
- #endif
- #ifdef SO_RCVLOWAT
- insint(d, "SO_RCVLOWAT", SO_RCVLOWAT);
- #endif
- #ifdef SO_SNDTIMEO
- insint(d, "SO_SNDTIMEO", SO_SNDTIMEO);
- #endif
- #ifdef SO_RCVTIMEO
- insint(d, "SO_RCVTIMEO", SO_RCVTIMEO);
- #endif
- #ifdef SO_ERROR
- insint(d, "SO_ERROR", SO_ERROR);
- #endif
- #ifdef SO_TYPE
- insint(d, "SO_TYPE", SO_TYPE);
- #endif
-
- /* Maximum number of connections for "listen" */
- #ifdef SOMAXCONN
- insint(d, "SOMAXCONN", SOMAXCONN);
- #else
- insint(d, "SOMAXCONN", 5); /* Common value */
- #endif
-
- /* Flags for send, recv */
- #ifdef MSG_OOB
- insint(d, "MSG_OOB", MSG_OOB);
- #endif
- #ifdef MSG_PEEK
- insint(d, "MSG_PEEK", MSG_PEEK);
- #endif
- #ifdef MSG_DONTROUTE
- insint(d, "MSG_DONTROUTE", MSG_DONTROUTE);
- #endif
- #ifdef MSG_DONTWAIT
- insint(d, "MSG_DONTWAIT", MSG_DONTWAIT);
- #endif
- #ifdef MSG_EOR
- insint(d, "MSG_EOR", MSG_EOR);
- #endif
- #ifdef MSG_TRUNC
- insint(d, "MSG_TRUNC", MSG_TRUNC);
- #endif
- #ifdef MSG_CTRUNC
- insint(d, "MSG_CTRUNC", MSG_CTRUNC);
- #endif
- #ifdef MSG_WAITALL
- insint(d, "MSG_WAITALL", MSG_WAITALL);
- #endif
- #ifdef MSG_BTAG
- insint(d, "MSG_BTAG", MSG_BTAG);
- #endif
- #ifdef MSG_ETAG
- insint(d, "MSG_ETAG", MSG_ETAG);
- #endif
-
- /* Protocol level and numbers, usable for [gs]etsockopt */
- #ifdef SOL_SOCKET
- insint(d, "SOL_SOCKET", SOL_SOCKET);
- #endif
- #ifdef SOL_IP
- insint(d, "SOL_IP", SOL_IP);
- #else
- insint(d, "SOL_IP", 0);
- #endif
- #ifdef SOL_IPX
- insint(d, "SOL_IPX", SOL_IPX);
- #endif
- #ifdef SOL_AX25
- insint(d, "SOL_AX25", SOL_AX25);
- #endif
- #ifdef SOL_ATALK
- insint(d, "SOL_ATALK", SOL_ATALK);
- #endif
- #ifdef SOL_NETROM
- insint(d, "SOL_NETROM", SOL_NETROM);
- #endif
- #ifdef SOL_ROSE
- insint(d, "SOL_ROSE", SOL_ROSE);
- #endif
- #ifdef SOL_TCP
- insint(d, "SOL_TCP", SOL_TCP);
- #else
- insint(d, "SOL_TCP", 6);
- #endif
- #ifdef SOL_UDP
- insint(d, "SOL_UDP", SOL_UDP);
- #else
- insint(d, "SOL_UDP", 17);
- #endif
- #ifdef IPPROTO_IP
- insint(d, "IPPROTO_IP", IPPROTO_IP);
- #else
- insint(d, "IPPROTO_IP", 0);
- #endif
- #ifdef IPPROTO_ICMP
- insint(d, "IPPROTO_ICMP", IPPROTO_ICMP);
- #else
- insint(d, "IPPROTO_ICMP", 1);
- #endif
- #ifdef IPPROTO_IGMP
- insint(d, "IPPROTO_IGMP", IPPROTO_IGMP);
- #endif
- #ifdef IPPROTO_GGP
- insint(d, "IPPROTO_GGP", IPPROTO_GGP);
- #endif
- #ifdef IPPROTO_TCP
- insint(d, "IPPROTO_TCP", IPPROTO_TCP);
- #else
- insint(d, "IPPROTO_TCP", 6);
- #endif
- #ifdef IPPROTO_EGP
- insint(d, "IPPROTO_EGP", IPPROTO_EGP);
- #endif
- #ifdef IPPROTO_PUP
- insint(d, "IPPROTO_PUP", IPPROTO_PUP);
- #endif
- #ifdef IPPROTO_UDP
- insint(d, "IPPROTO_UDP", IPPROTO_UDP);
- #else
- insint(d, "IPPROTO_UDP", 17);
- #endif
- #ifdef IPPROTO_IDP
- insint(d, "IPPROTO_IDP", IPPROTO_IDP);
- #endif
- #ifdef IPPROTO_HELLO
- insint(d, "IPPROTO_HELLO", IPPROTO_HELLO);
- #endif
- #ifdef IPPROTO_ND
- insint(d, "IPPROTO_ND", IPPROTO_ND);
- #endif
- #ifdef IPPROTO_TP
- insint(d, "IPPROTO_TP", IPPROTO_TP);
- #endif
- #ifdef IPPROTO_XTP
- insint(d, "IPPROTO_XTP", IPPROTO_XTP);
- #endif
- #ifdef IPPROTO_EON
- insint(d, "IPPROTO_EON", IPPROTO_EON);
- #endif
- #ifdef IPPROTO_BIP
- insint(d, "IPPROTO_BIP", IPPROTO_BIP);
- #endif
- /**/
- #ifdef IPPROTO_RAW
- insint(d, "IPPROTO_RAW", IPPROTO_RAW);
- #else
- insint(d, "IPPROTO_RAW", 255);
- #endif
- #ifdef IPPROTO_MAX
- insint(d, "IPPROTO_MAX", IPPROTO_MAX);
- #endif
-
- /* Some port configuration */
- #ifdef IPPORT_RESERVED
- insint(d, "IPPORT_RESERVED", IPPORT_RESERVED);
- #else
- insint(d, "IPPORT_RESERVED", 1024);
- #endif
- #ifdef IPPORT_USERRESERVED
- insint(d, "IPPORT_USERRESERVED", IPPORT_USERRESERVED);
- #else
- insint(d, "IPPORT_USERRESERVED", 5000);
- #endif
-
- /* Some reserved IP v.4 addresses */
- #ifdef INADDR_ANY
- insint(d, "INADDR_ANY", INADDR_ANY);
- #else
- insint(d, "INADDR_ANY", 0x00000000);
- #endif
- #ifdef INADDR_BROADCAST
- insint(d, "INADDR_BROADCAST", INADDR_BROADCAST);
- #else
- insint(d, "INADDR_BROADCAST", 0xffffffff);
- #endif
- #ifdef INADDR_LOOPBACK
- insint(d, "INADDR_LOOPBACK", INADDR_LOOPBACK);
- #else
- insint(d, "INADDR_LOOPBACK", 0x7F000001);
- #endif
- #ifdef INADDR_UNSPEC_GROUP
- insint(d, "INADDR_UNSPEC_GROUP", INADDR_UNSPEC_GROUP);
- #else
- insint(d, "INADDR_UNSPEC_GROUP", 0xe0000000);
- #endif
- #ifdef INADDR_ALLHOSTS_GROUP
- insint(d, "INADDR_ALLHOSTS_GROUP", INADDR_ALLHOSTS_GROUP);
- #else
- insint(d, "INADDR_ALLHOSTS_GROUP", 0xe0000001);
- #endif
- #ifdef INADDR_MAX_LOCAL_GROUP
- insint(d, "INADDR_MAX_LOCAL_GROUP", INADDR_MAX_LOCAL_GROUP);
- #else
- insint(d, "INADDR_MAX_LOCAL_GROUP", 0xe00000ff);
- #endif
- #ifdef INADDR_NONE
- insint(d, "INADDR_NONE", INADDR_NONE);
- #else
- insint(d, "INADDR_NONE", 0xffffffff);
- #endif
-
- /* IP [gs]etsockopt options */
- #ifdef IP_OPTIONS
- insint(d, "IP_OPTIONS", IP_OPTIONS);
- #endif
- #ifdef IP_HDRINCL
- insint(d, "IP_HDRINCL", IP_HDRINCL);
- #endif
- #ifdef IP_TOS
- insint(d, "IP_TOS", IP_TOS);
- #endif
- #ifdef IP_TTL
- insint(d, "IP_TTL", IP_TTL);
- #endif
- #ifdef IP_RECVOPTS
- insint(d, "IP_RECVOPTS", IP_RECVOPTS);
- #endif
- #ifdef IP_RECVRETOPTS
- insint(d, "IP_RECVRETOPTS", IP_RECVRETOPTS);
- #endif
- #ifdef IP_RECVDSTADDR
- insint(d, "IP_RECVDSTADDR", IP_RECVDSTADDR);
- #endif
- #ifdef IP_RETOPTS
- insint(d, "IP_RETOPTS", IP_RETOPTS);
- #endif
- #ifdef IP_MULTICAST_IF
- insint(d, "IP_MULTICAST_IF", IP_MULTICAST_IF);
- #endif
- #ifdef IP_MULTICAST_TTL
- insint(d, "IP_MULTICAST_TTL", IP_MULTICAST_TTL);
- #endif
- #ifdef IP_MULTICAST_LOOP
- insint(d, "IP_MULTICAST_LOOP", IP_MULTICAST_LOOP);
- #endif
- #ifdef IP_ADD_MEMBERSHIP
- insint(d, "IP_ADD_MEMBERSHIP", IP_ADD_MEMBERSHIP);
- #endif
- #ifdef IP_DROP_MEMBERSHIP
- insint(d, "IP_DROP_MEMBERSHIP", IP_DROP_MEMBERSHIP);
- #endif
- #ifdef IP_DEFAULT_MULTICAST_TTL
- insint(d, "IP_DEFAULT_MULTICAST_TTL", IP_DEFAULT_MULTICAST_TTL);
- #endif
- #ifdef IP_DEFAULT_MULTICAST_LOOP
- insint(d, "IP_DEFAULT_MULTICAST_LOOP", IP_DEFAULT_MULTICAST_LOOP);
- #endif
- #ifdef IP_MAX_MEMBERSHIPS
- insint(d, "IP_MAX_MEMBERSHIPS", IP_MAX_MEMBERSHIPS);
- #endif
-
- /* TCP options */
- #ifdef TCP_NODELAY
- insint(d, "TCP_NODELAY", TCP_NODELAY);
- #endif
- #ifdef TCP_MAXSEG
- insint(d, "TCP_MAXSEG", TCP_MAXSEG);
- #endif
-
- /* IPX options */
- #ifdef IPX_TYPE
- insint(d, "IPX_TYPE", IPX_TYPE);
- #endif
-
- /* Initialize gethostbyname lock */
- #ifdef USE_GETHOSTBYNAME_LOCK
- gethostbyname_lock = PyThread_allocate_lock();
- #endif
- }
-