/Modules/socketmodule.c
C | 5096 lines | 4071 code | 586 blank | 439 comment | 540 complexity | 631d9354adf7b82818fcf7948b11813e MD5 | raw file
Possible License(s): 0BSD
- /* Socket module */
- /*
- This module provides an interface to Berkeley socket IPC.
- Limitations:
- - Only AF_INET, AF_INET6 and AF_UNIX address families are supported in a
- portable manner, though AF_PACKET and AF_NETLINK are supported under Linux.
- - No read/write operations (use sendall/recv or makefile instead).
- - Additional restrictions apply on some non-Unix platforms (compensated
- for by socket.py).
- Module interface:
- - socket.error: exception raised for socket specific errors
- - socket.gaierror: exception raised for getaddrinfo/getnameinfo errors,
- a subclass of socket.error
- - socket.herror: exception raised for gethostby* errors,
- a subclass of socket.error
- - socket.fromfd(fd, family, type[, proto]) --> new socket object (created
- from an existing file descriptor)
- - 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.getservbyport(portnumber[, protocolname]) --> service name
- - socket.socket([family[, type [, proto]]]) --> new socket object
- - socket.socketpair([family[, type [, proto]]]) --> (socket, socket)
- - 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.getaddrinfo(host, port [, family, socktype, proto, flags])
- --> List of (family, socktype, proto, canonname, sockaddr)
- - socket.getnameinfo(sockaddr, flags) --> (host, port)
- - socket.AF_INET, socket.SOCK_STREAM, etc.: constants from <socket.h>
- - socket.has_ipv6: boolean value indicating if IPv6 is supported
- - socket.inet_aton(IP address) -> 32-bit packed IP representation
- - socket.inet_ntoa(packed IP) -> IP address string
- - socket.getdefaulttimeout() -> None | float
- - socket.setdefaulttimeout(None | float)
- - 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
- - an AF_PACKET socket address is a tuple containing a string
- specifying the ethernet interface and an integer specifying
- the Ethernet protocol number to be received. For example:
- ("eth0",0x1234). Optional 3rd,4th,5th elements in the tuple
- specify packet-type and ha-type/addr.
- Local naming conventions:
- - names starting with sock_ are socket object methods
- - names starting with socket_ are module-level functions
- - names starting with PySocket are exported through socketmodule.h
- */
- #ifdef __APPLE__
- /*
- * inet_aton is not available on OSX 10.3, yet we want to use a binary
- * that was build on 10.4 or later to work on that release, weak linking
- * comes to the rescue.
- */
- # pragma weak inet_aton
- #endif
- #include "Python.h"
- #include "structmember.h"
- #undef MAX
- #define MAX(x, y) ((x) < (y) ? (y) : (x))
- /* Socket object documentation */
- PyDoc_STRVAR(sock_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 defaults to AF_INET. The type argument specifies\n\
- whether this is a stream (SOCK_STREAM, this is the default)\n\
- or datagram (SOCK_DGRAM) socket. The protocol argument defaults to 0,\n\
- specifying the default protocol. Keyword arguments are accepted.\n\
- \n\
- A socket object represents one endpoint of a network connection.\n\
- \n\
- Methods of socket objects (keyword arguments not allowed):\n\
- \n\
- accept() -- accept a connection, returning new socket and client address\n\
- bind(addr) -- bind the socket to a local address\n\
- close() -- close the socket\n\
- connect(addr) -- connect the socket to a remote address\n\
- connect_ex(addr) -- 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(level, optname[, buflen]) -- get socket options\n\
- gettimeout() -- return timeout or None\n\
- listen(n) -- start listening for incoming connections\n\
- makefile([mode, [bufsize]]) -- return a file object for the socket [*]\n\
- recv(buflen[, flags]) -- receive data\n\
- recv_into(buffer[, nbytes[, flags]]) -- receive data (into a buffer)\n\
- recvfrom(buflen[, flags]) -- receive data and sender\'s address\n\
- recvfrom_into(buffer[, nbytes, [, flags])\n\
- -- receive data and sender\'s address (into a buffer)\n\
- sendall(data[, flags]) -- send all data\n\
- send(data[, flags]) -- send data, may not send all of it\n\
- sendto(data[, flags], addr) -- send data to a given address\n\
- setblocking(0 | 1) -- set or clear the blocking I/O flag\n\
- setsockopt(level, optname, value) -- set socket options\n\
- settimeout(None | float) -- set or clear the timeout\n\
- shutdown(how) -- shut down traffic in one or both directions\n\
- \n\
- [*] not available on all platforms!");
- /* XXX This is a terrible mess of platform-dependent preprocessor hacks.
- I hope some day someone can clean this up please... */
- /* 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
- /* To use __FreeBSD_version */
- #ifdef HAVE_SYS_PARAM_H
- #include <sys/param.h>
- #endif
- /* On systems on which getaddrinfo() is believed to not be thread-safe,
- (this includes the getaddrinfo emulation) protect access with a lock. */
- #if defined(WITH_THREAD) && (defined(__APPLE__) || \
- (defined(__FreeBSD__) && __FreeBSD_version+0 < 503000) || \
- defined(__OpenBSD__) || defined(__NetBSD__) || \
- defined(__VMS) || !defined(HAVE_GETADDRINFO))
- #define USE_GETADDRINFO_LOCK
- #endif
- #ifdef USE_GETADDRINFO_LOCK
- #define ACQUIRE_GETADDRINFO_LOCK PyThread_acquire_lock(netdb_lock, 1);
- #define RELEASE_GETADDRINFO_LOCK PyThread_release_lock(netdb_lock);
- #else
- #define ACQUIRE_GETADDRINFO_LOCK
- #define RELEASE_GETADDRINFO_LOCK
- #endif
- #if defined(USE_GETHOSTBYNAME_LOCK) || defined(USE_GETADDRINFO_LOCK)
- # include "pythread.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(__VMS)
- # include <ioctl.h>
- #endif
- #if defined(PYOS_OS2)
- # define INCL_DOS
- # define INCL_DOSERRORS
- # define INCL_NOPMAPI
- # include <os2.h>
- #endif
- #if defined(__sgi) && _COMPILER_VERSION>700 && !_SGIAPI
- /* make sure that the reentrant (gethostbyaddr_r etc)
- functions are declared correctly if compiling with
- MIPSPro 7.x in ANSI C mode (default) */
- /* XXX Using _SGIAPI is the wrong thing,
- but I don't know what the right thing is. */
- #undef _SGIAPI /* to avoid warning */
- #define _SGIAPI 1
- #undef _XOPEN_SOURCE
- #include <sys/socket.h>
- #include <sys/types.h>
- #include <netinet/in.h>
- #ifdef _SS_ALIGNSIZE
- #define HAVE_GETADDRINFO 1
- #define HAVE_GETNAMEINFO 1
- #endif
- #define HAVE_INET_PTON
- #include <netdb.h>
- #endif
- /* Irix 6.5 fails to define this variable at all. This is needed
- for both GCC and SGI's compiler. I'd say that the SGI headers
- are just busted. Same thing for Solaris. */
- #if (defined(__sgi) || defined(sun)) && !defined(INET_ADDRSTRLEN)
- #define INET_ADDRSTRLEN 16
- #endif
- /* Generic includes */
- #ifdef HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
- /* Generic socket object definitions and includes */
- #define PySocket_BUILDING_SOCKET
- #include "socketmodule.h"
- /* Addressing includes */
- #ifndef MS_WINDOWS
- /* Non-MS WINDOWS includes */
- # include <netdb.h>
- /* Headers needed for inet_ntoa() and inet_addr() */
- # ifdef __BEOS__
- # include <net/netdb.h>
- # elif defined(PYOS_OS2) && defined(PYCC_VACPP)
- # include <netdb.h>
- typedef size_t socklen_t;
- # else
- # include <arpa/inet.h>
- # endif
- # ifndef RISCOS
- # include <fcntl.h>
- # else
- # include <sys/ioctl.h>
- # include <socklib.h>
- # define NO_DUP
- int h_errno; /* not used */
- # define INET_ADDRSTRLEN 16
- # endif
- #else
- /* MS_WINDOWS includes */
- # ifdef HAVE_FCNTL_H
- # include <fcntl.h>
- # endif
- #endif
- #include <stddef.h>
- #ifndef offsetof
- # define offsetof(type, member) ((size_t)(&((type *)0)->member))
- #endif
- #ifndef O_NONBLOCK
- # define O_NONBLOCK O_NDELAY
- #endif
- /* include Python's addrinfo.h unless it causes trouble */
- #if defined(__sgi) && _COMPILER_VERSION>700 && defined(_SS_ALIGNSIZE)
- /* Do not include addinfo.h on some newer IRIX versions.
- * _SS_ALIGNSIZE is defined in sys/socket.h by 6.5.21,
- * for example, but not by 6.5.10.
- */
- #elif defined(_MSC_VER) && _MSC_VER>1201
- /* Do not include addrinfo.h for MSVC7 or greater. 'addrinfo' and
- * EAI_* constants are defined in (the already included) ws2tcpip.h.
- */
- #else
- # include "addrinfo.h"
- #endif
- #ifndef HAVE_INET_PTON
- int inet_pton(int af, const char *src, void *dst);
- const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
- #endif
- #ifdef __APPLE__
- /* On OS X, getaddrinfo returns no error indication of lookup
- failure, so we must use the emulation instead of the libinfo
- implementation. Unfortunately, performing an autoconf test
- for this bug would require DNS access for the machine performing
- the configuration, which is not acceptable. Therefore, we
- determine the bug just by checking for __APPLE__. If this bug
- gets ever fixed, perhaps checking for sys/version.h would be
- appropriate, which is 10/0 on the system with the bug. */
- #ifndef HAVE_GETNAMEINFO
- /* This bug seems to be fixed in Jaguar. Ths easiest way I could
- Find to check for Jaguar is that it has getnameinfo(), which
- older releases don't have */
- #undef HAVE_GETADDRINFO
- #endif
- #ifdef HAVE_INET_ATON
- #define USE_INET_ATON_WEAKLINK
- #endif
- #endif
- /* I know this is a bad practice, but it is the easiest... */
- #if !defined(HAVE_GETADDRINFO)
- /* avoid clashes with the C library definition of the symbol. */
- #define getaddrinfo fake_getaddrinfo
- #define gai_strerror fake_gai_strerror
- #define freeaddrinfo fake_freeaddrinfo
- #include "getaddrinfo.c"
- #endif
- #if !defined(HAVE_GETNAMEINFO)
- #define getnameinfo fake_getnameinfo
- #include "getnameinfo.c"
- #endif
- #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
- #ifdef MS_WIN32
- #define EAFNOSUPPORT WSAEAFNOSUPPORT
- #define snprintf _snprintf
- #endif
- #if defined(PYOS_OS2) && !defined(PYCC_GCC)
- #define SOCKETCLOSE soclose
- #define NO_DUP /* Sockets are Not Actual File Handles under OS/2 */
- #endif
- #ifndef SOCKETCLOSE
- #define SOCKETCLOSE close
- #endif
- #if defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H)
- #define USE_BLUETOOTH 1
- #if defined(__FreeBSD__)
- #define BTPROTO_L2CAP BLUETOOTH_PROTO_L2CAP
- #define BTPROTO_RFCOMM BLUETOOTH_PROTO_RFCOMM
- #define sockaddr_l2 sockaddr_l2cap
- #define sockaddr_rc sockaddr_rfcomm
- #define _BT_L2_MEMB(sa, memb) ((sa)->l2cap_##memb)
- #define _BT_RC_MEMB(sa, memb) ((sa)->rfcomm_##memb)
- #elif defined(__NetBSD__)
- #define sockaddr_l2 sockaddr_bt
- #define sockaddr_rc sockaddr_bt
- #define sockaddr_sco sockaddr_bt
- #define _BT_L2_MEMB(sa, memb) ((sa)->bt_##memb)
- #define _BT_RC_MEMB(sa, memb) ((sa)->bt_##memb)
- #define _BT_SCO_MEMB(sa, memb) ((sa)->bt_##memb)
- #else
- #define _BT_L2_MEMB(sa, memb) ((sa)->l2_##memb)
- #define _BT_RC_MEMB(sa, memb) ((sa)->rc_##memb)
- #define _BT_SCO_MEMB(sa, memb) ((sa)->sco_##memb)
- #endif
- #endif
- #ifdef __VMS
- /* TCP/IP Services for VMS uses a maximum send/recv buffer length */
- #define SEGMENT_SIZE (32 * 1024 -1)
- #endif
- #define SAS2SA(x) ((struct sockaddr *)(x))
- /*
- * Constants for getnameinfo()
- */
- #if !defined(NI_MAXHOST)
- #define NI_MAXHOST 1025
- #endif
- #if !defined(NI_MAXSERV)
- #define NI_MAXSERV 32
- #endif
- /* XXX There's a problem here: *static* functions are not supposed to have
- a Py prefix (or use CapitalizedWords). Later... */
- /* Global variable holding the exception type for errors detected
- by this module (but not argument type or memory errors, etc.). */
- static PyObject *socket_error;
- static PyObject *socket_herror;
- static PyObject *socket_gaierror;
- static PyObject *socket_timeout;
- #ifdef RISCOS
- /* Global variable which is !=0 if Python is running in a RISC OS taskwindow */
- static int taskwindow;
- #endif
- /* A forward reference to the socket type object.
- The sock_type variable contains pointers to various functions,
- some of which call new_sockobject(), which uses sock_type, so
- there has to be a circular reference. */
- static PyTypeObject sock_type;
- #if defined(HAVE_POLL_H)
- #include <poll.h>
- #elif defined(HAVE_SYS_POLL_H)
- #include <sys/poll.h>
- #endif
- #ifdef Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
- /* Platform can select file descriptors beyond FD_SETSIZE */
- #define IS_SELECTABLE(s) 1
- #elif defined(HAVE_POLL)
- /* Instead of select(), we'll use poll() since poll() works on any fd. */
- #define IS_SELECTABLE(s) 1
- /* Can we call select() with this socket without a buffer overrun? */
- #else
- /* POSIX says selecting file descriptors beyond FD_SETSIZE
- has undefined behaviour. If there's no timeout left, we don't have to
- call select, so it's a safe, little white lie. */
- #define IS_SELECTABLE(s) ((s)->sock_fd < FD_SETSIZE || s->sock_timeout <= 0.0)
- #endif
- static PyObject*
- select_error(void)
- {
- PyErr_SetString(socket_error, "unable to select on socket");
- return NULL;
- }
- /* Convenience function to raise an error according to errno
- and return a NULL pointer from a function. */
- static PyObject *
- set_error(void)
- {
- #ifdef MS_WINDOWS
- int err_no = WSAGetLastError();
- 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}
- };
- if (err_no) {
- 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(socket_error, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- else
- #endif
- #if defined(PYOS_OS2) && !defined(PYCC_GCC)
- 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;
- /* OS/2 doesn't guarantee a terminator */
- outbuf[msglen] = '\0';
- if (strlen(outbuf) > 0) {
- /* If non-empty msg, trim CRLF */
- char *lastc = &outbuf[ strlen(outbuf)-1 ];
- while (lastc > outbuf &&
- isspace(Py_CHARMASK(*lastc))) {
- /* Trim trailing whitespace (CRLF) */
- *lastc-- = '\0';
- }
- }
- v = Py_BuildValue("(is)", myerrorcode, outbuf);
- if (v != NULL) {
- PyErr_SetObject(socket_error, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- }
- #endif
- #if defined(RISCOS)
- if (_inet_error.errnum != NULL) {
- PyObject *v;
- v = Py_BuildValue("(is)", errno, _inet_err());
- if (v != NULL) {
- PyErr_SetObject(socket_error, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- #endif
- return PyErr_SetFromErrno(socket_error);
- }
- static PyObject *
- set_herror(int h_error)
- {
- PyObject *v;
- #ifdef HAVE_HSTRERROR
- v = Py_BuildValue("(is)", h_error, (char *)hstrerror(h_error));
- #else
- v = Py_BuildValue("(is)", h_error, "host not found");
- #endif
- if (v != NULL) {
- PyErr_SetObject(socket_herror, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- static PyObject *
- set_gaierror(int error)
- {
- PyObject *v;
- #ifdef EAI_SYSTEM
- /* EAI_SYSTEM is not available on Windows XP. */
- if (error == EAI_SYSTEM)
- return set_error();
- #endif
- #ifdef HAVE_GAI_STRERROR
- v = Py_BuildValue("(is)", error, gai_strerror(error));
- #else
- v = Py_BuildValue("(is)", error, "getaddrinfo failed");
- #endif
- if (v != NULL) {
- PyErr_SetObject(socket_gaierror, v);
- Py_DECREF(v);
- }
- return NULL;
- }
- #ifdef __VMS
- /* Function to send in segments */
- static int
- sendsegmented(int sock_fd, char *buf, int len, int flags)
- {
- int n = 0;
- int remaining = len;
- while (remaining > 0) {
- unsigned int segment;
- segment = (remaining >= SEGMENT_SIZE ? SEGMENT_SIZE : remaining);
- n = send(sock_fd, buf, segment, flags);
- if (n < 0) {
- return n;
- }
- remaining -= segment;
- buf += segment;
- } /* end while */
- return len;
- }
- #endif
- /* Function to perform the setting of socket blocking mode
- internally. block = (1 | 0). */
- static int
- internal_setblocking(PySocketSockObject *s, int block)
- {
- #ifndef RISCOS
- #ifndef MS_WINDOWS
- int delay_flag;
- #endif
- #endif
- Py_BEGIN_ALLOW_THREADS
- #ifdef __BEOS__
- block = !block;
- setsockopt(s->sock_fd, SOL_SOCKET, SO_NONBLOCK,
- (void *)(&block), sizeof(int));
- #else
- #ifndef RISCOS
- #ifndef MS_WINDOWS
- #if defined(PYOS_OS2) && !defined(PYCC_GCC)
- block = !block;
- ioctl(s->sock_fd, FIONBIO, (caddr_t)&block, sizeof(block));
- #elif defined(__VMS)
- block = !block;
- ioctl(s->sock_fd, FIONBIO, (unsigned int *)&block);
- #else /* !PYOS_OS2 && !__VMS */
- delay_flag = fcntl(s->sock_fd, F_GETFL, 0);
- if (block)
- delay_flag &= (~O_NONBLOCK);
- else
- delay_flag |= O_NONBLOCK;
- fcntl(s->sock_fd, F_SETFL, delay_flag);
- #endif /* !PYOS_OS2 */
- #else /* MS_WINDOWS */
- block = !block;
- ioctlsocket(s->sock_fd, FIONBIO, (u_long*)&block);
- #endif /* MS_WINDOWS */
- #else /* RISCOS */
- block = !block;
- socketioctl(s->sock_fd, FIONBIO, (u_long*)&block);
- #endif /* RISCOS */
- #endif /* __BEOS__ */
- Py_END_ALLOW_THREADS
- /* Since these don't return anything */
- return 1;
- }
- /* Do a select()/poll() on the socket, if necessary (sock_timeout > 0).
- The argument writing indicates the direction.
- This does not raise an exception; we'll let our caller do that
- after they've reacquired the interpreter lock.
- Returns 1 on timeout, -1 on error, 0 otherwise. */
- static int
- internal_select(PySocketSockObject *s, int writing)
- {
- int n;
- /* Nothing to do unless we're in timeout mode (not non-blocking) */
- if (s->sock_timeout <= 0.0)
- return 0;
- /* Guard against closed socket */
- if (s->sock_fd < 0)
- return 0;
- /* Prefer poll, if available, since you can poll() any fd
- * which can't be done with select(). */
- #ifdef HAVE_POLL
- {
- struct pollfd pollfd;
- int timeout;
- pollfd.fd = s->sock_fd;
- pollfd.events = writing ? POLLOUT : POLLIN;
- /* s->sock_timeout is in seconds, timeout in ms */
- timeout = (int)(s->sock_timeout * 1000 + 0.5);
- n = poll(&pollfd, 1, timeout);
- }
- #else
- {
- /* Construct the arguments to select */
- fd_set fds;
- struct timeval tv;
- tv.tv_sec = (int)s->sock_timeout;
- tv.tv_usec = (int)((s->sock_timeout - tv.tv_sec) * 1e6);
- FD_ZERO(&fds);
- FD_SET(s->sock_fd, &fds);
- /* See if the socket is ready */
- if (writing)
- n = select(s->sock_fd+1, NULL, &fds, NULL, &tv);
- else
- n = select(s->sock_fd+1, &fds, NULL, NULL, &tv);
- }
- #endif
-
- if (n < 0)
- return -1;
- if (n == 0)
- return 1;
- return 0;
- }
- /* Initialize a new socket object. */
- static double defaulttimeout = -1.0; /* Default timeout for new sockets */
- PyMODINIT_FUNC
- init_sockobject(PySocketSockObject *s,
- SOCKET_T fd, int family, int type, int proto)
- {
- #ifdef RISCOS
- int block = 1;
- #endif
- s->sock_fd = fd;
- s->sock_family = family;
- s->sock_type = type;
- s->sock_proto = proto;
- s->sock_timeout = defaulttimeout;
- s->errorhandler = &set_error;
- if (defaulttimeout >= 0.0)
- internal_setblocking(s, 0);
- #ifdef RISCOS
- if (taskwindow)
- socketioctl(s->sock_fd, 0x80046679, (u_long*)&block);
- #endif
- }
- /* 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 *
- new_sockobject(SOCKET_T fd, int family, int type, int proto)
- {
- PySocketSockObject *s;
- s = (PySocketSockObject *)
- PyType_GenericNew(&sock_type, NULL, NULL);
- if (s != NULL)
- init_sockobject(s, fd, family, type, proto);
- return s;
- }
- /* Lock to allow python interpreter to continue, but only allow one
- thread to be in gethostbyname or getaddrinfo */
- #if defined(USE_GETHOSTBYNAME_LOCK) || defined(USE_GETADDRINFO_LOCK)
- PyThread_type_lock netdb_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 (IPv4 should be 4 bytes), or negative if
- an error occurred; then an exception is raised. */
- static int
- setipaddr(char *name, struct sockaddr *addr_ret, size_t addr_ret_size, int af)
- {
- struct addrinfo hints, *res;
- int error;
- int d1, d2, d3, d4;
- char ch;
- memset((void *) addr_ret, '\0', sizeof(*addr_ret));
- if (name[0] == '\0') {
- int siz;
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = af;
- hints.ai_socktype = SOCK_DGRAM; /*dummy*/
- hints.ai_flags = AI_PASSIVE;
- Py_BEGIN_ALLOW_THREADS
- ACQUIRE_GETADDRINFO_LOCK
- error = getaddrinfo(NULL, "0", &hints, &res);
- Py_END_ALLOW_THREADS
- /* We assume that those thread-unsafe getaddrinfo() versions
- *are* safe regarding their return value, ie. that a
- subsequent call to getaddrinfo() does not destroy the
- outcome of the first call. */
- RELEASE_GETADDRINFO_LOCK
- if (error) {
- set_gaierror(error);
- return -1;
- }
- switch (res->ai_family) {
- case AF_INET:
- siz = 4;
- break;
- #ifdef ENABLE_IPV6
- case AF_INET6:
- siz = 16;
- break;
- #endif
- default:
- freeaddrinfo(res);
- PyErr_SetString(socket_error,
- "unsupported address family");
- return -1;
- }
- if (res->ai_next) {
- freeaddrinfo(res);
- PyErr_SetString(socket_error,
- "wildcard resolved to multiple address");
- return -1;
- }
- if (res->ai_addrlen < addr_ret_size)
- addr_ret_size = res->ai_addrlen;
- memcpy(addr_ret, res->ai_addr, addr_ret_size);
- freeaddrinfo(res);
- return siz;
- }
- if (name[0] == '<' && strcmp(name, "<broadcast>") == 0) {
- struct sockaddr_in *sin;
- if (af != AF_INET && af != AF_UNSPEC) {
- PyErr_SetString(socket_error,
- "address family mismatched");
- return -1;
- }
- sin = (struct sockaddr_in *)addr_ret;
- memset((void *) sin, '\0', sizeof(*sin));
- sin->sin_family = AF_INET;
- #ifdef HAVE_SOCKADDR_SA_LEN
- sin->sin_len = sizeof(*sin);
- #endif
- sin->sin_addr.s_addr = INADDR_BROADCAST;
- return sizeof(sin->sin_addr);
- }
- 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) {
- struct sockaddr_in *sin;
- sin = (struct sockaddr_in *)addr_ret;
- sin->sin_addr.s_addr = htonl(
- ((long) d1 << 24) | ((long) d2 << 16) |
- ((long) d3 << 8) | ((long) d4 << 0));
- sin->sin_family = AF_INET;
- #ifdef HAVE_SOCKADDR_SA_LEN
- sin->sin_len = sizeof(*sin);
- #endif
- return 4;
- }
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = af;
- Py_BEGIN_ALLOW_THREADS
- ACQUIRE_GETADDRINFO_LOCK
- error = getaddrinfo(name, NULL, &hints, &res);
- #if defined(__digital__) && defined(__unix__)
- if (error == EAI_NONAME && af == AF_UNSPEC) {
- /* On Tru64 V5.1, numeric-to-addr conversion fails
- if no address family is given. Assume IPv4 for now.*/
- hints.ai_family = AF_INET;
- error = getaddrinfo(name, NULL, &hints, &res);
- }
- #endif
- Py_END_ALLOW_THREADS
- RELEASE_GETADDRINFO_LOCK /* see comment in setipaddr() */
- if (error) {
- set_gaierror(error);
- return -1;
- }
- if (res->ai_addrlen < addr_ret_size)
- addr_ret_size = res->ai_addrlen;
- memcpy((char *) addr_ret, res->ai_addr, addr_ret_size);
- freeaddrinfo(res);
- switch (addr_ret->sa_family) {
- case AF_INET:
- return 4;
- #ifdef ENABLE_IPV6
- case AF_INET6:
- return 16;
- #endif
- default:
- PyErr_SetString(socket_error, "unknown address family");
- return -1;
- }
- }
- /* 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 *addr, int addrlen)
- {
- char buf[NI_MAXHOST];
- int error;
- error = getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0,
- NI_NUMERICHOST);
- if (error) {
- set_gaierror(error);
- return NULL;
- }
- return PyString_FromString(buf);
- }
- #ifdef USE_BLUETOOTH
- /* Convert a string representation of a Bluetooth address into a numeric
- address. Returns the length (6), or raises an exception and returns -1 if
- an error occurred. */
- static int
- setbdaddr(char *name, bdaddr_t *bdaddr)
- {
- unsigned int b0, b1, b2, b3, b4, b5;
- char ch;
- int n;
- n = sscanf(name, "%X:%X:%X:%X:%X:%X%c",
- &b5, &b4, &b3, &b2, &b1, &b0, &ch);
- if (n == 6 && (b0 | b1 | b2 | b3 | b4 | b5) < 256) {
- bdaddr->b[0] = b0;
- bdaddr->b[1] = b1;
- bdaddr->b[2] = b2;
- bdaddr->b[3] = b3;
- bdaddr->b[4] = b4;
- bdaddr->b[5] = b5;
- return 6;
- } else {
- PyErr_SetString(socket_error, "bad bluetooth address");
- return -1;
- }
- }
- /* Create a string representation of the Bluetooth address. This is always a
- string of the form 'XX:XX:XX:XX:XX:XX' where XX is a two digit hexadecimal
- value (zero padded if necessary). */
- static PyObject *
- makebdaddr(bdaddr_t *bdaddr)
- {
- char buf[(6 * 2) + 5 + 1];
- sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
- bdaddr->b[5], bdaddr->b[4], bdaddr->b[3],
- bdaddr->b[2], bdaddr->b[1], bdaddr->b[0]);
- return PyString_FromString(buf);
- }
- #endif
- /* 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(int sockfd, struct sockaddr *addr, int addrlen, int proto)
- {
- 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;
- PyObject *addrobj = makeipaddr(addr, sizeof(*a));
- PyObject *ret = NULL;
- if (addrobj) {
- a = (struct sockaddr_in *)addr;
- ret = Py_BuildValue("Oi", addrobj, ntohs(a->sin_port));
- Py_DECREF(addrobj);
- }
- return ret;
- }
- #if defined(AF_UNIX)
- case AF_UNIX:
- {
- struct sockaddr_un *a = (struct sockaddr_un *) addr;
- #ifdef linux
- if (a->sun_path[0] == 0) { /* Linux abstract namespace */
- addrlen -= (sizeof(*a) - sizeof(a->sun_path));
- return PyString_FromStringAndSize(a->sun_path,
- addrlen);
- }
- else
- #endif /* linux */
- {
- /* regular NULL-terminated string */
- return PyString_FromString(a->sun_path);
- }
- }
- #endif /* AF_UNIX */
- #if defined(AF_NETLINK)
- case AF_NETLINK:
- {
- struct sockaddr_nl *a = (struct sockaddr_nl *) addr;
- return Py_BuildValue("II", a->nl_pid, a->nl_groups);
- }
- #endif /* AF_NETLINK */
- #ifdef ENABLE_IPV6
- case AF_INET6:
- {
- struct sockaddr_in6 *a;
- PyObject *addrobj = makeipaddr(addr, sizeof(*a));
- PyObject *ret = NULL;
- if (addrobj) {
- a = (struct sockaddr_in6 *)addr;
- ret = Py_BuildValue("Oiii",
- addrobj,
- ntohs(a->sin6_port),
- a->sin6_flowinfo,
- a->sin6_scope_id);
- Py_DECREF(addrobj);
- }
- return ret;
- }
- #endif
- #ifdef USE_BLUETOOTH
- case AF_BLUETOOTH:
- switch (proto) {
- case BTPROTO_L2CAP:
- {
- struct sockaddr_l2 *a = (struct sockaddr_l2 *) addr;
- PyObject *addrobj = makebdaddr(&_BT_L2_MEMB(a, bdaddr));
- PyObject *ret = NULL;
- if (addrobj) {
- ret = Py_BuildValue("Oi",
- addrobj,
- _BT_L2_MEMB(a, psm));
- Py_DECREF(addrobj);
- }
- return ret;
- }
- case BTPROTO_RFCOMM:
- {
- struct sockaddr_rc *a = (struct sockaddr_rc *) addr;
- PyObject *addrobj = makebdaddr(&_BT_RC_MEMB(a, bdaddr));
- PyObject *ret = NULL;
- if (addrobj) {
- ret = Py_BuildValue("Oi",
- addrobj,
- _BT_RC_MEMB(a, channel));
- Py_DECREF(addrobj);
- }
- return ret;
- }
- #if !defined(__FreeBSD__)
- case BTPROTO_SCO:
- {
- struct sockaddr_sco *a = (struct sockaddr_sco *) addr;
- return makebdaddr(&_BT_SCO_MEMB(a, bdaddr));
- }
- #endif
- }
- #endif
- #ifdef HAVE_NETPACKET_PACKET_H
- case AF_PACKET:
- {
- struct sockaddr_ll *a = (struct sockaddr_ll *)addr;
- char *ifname = "";
- struct ifreq ifr;
- /* need to look up interface name give index */
- if (a->sll_ifindex) {
- ifr.ifr_ifindex = a->sll_ifindex;
- if (ioctl(sockfd, SIOCGIFNAME, &ifr) == 0)
- ifname = ifr.ifr_name;
- }
- return Py_BuildValue("shbhs#",
- ifname,
- ntohs(a->sll_protocol),
- a->sll_pkttype,
- a->sll_hatype,
- a->sll_addr,
- a->sll_halen);
- }
- #endif
- /* 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) {
- #if defined(AF_UNIX)
- case AF_UNIX:
- {
- struct sockaddr_un* addr;
- char *path;
- int len;
- if (!PyArg_Parse(args, "t#", &path, &len))
- return 0;
- addr = (struct sockaddr_un*)addr_ret;
- #ifdef linux
- if (len > 0 && path[0] == 0) {
- /* Linux abstract namespace extension */
- if (len > sizeof addr->sun_path) {
- PyErr_SetString(socket_error,
- "AF_UNIX path too long");
- return 0;
- }
- }
- else
- #endif /* linux */
- {
- /* regular NULL-terminated string */
- if (len >= sizeof addr->sun_path) {
- PyErr_SetString(socket_error,
- "AF_UNIX path too long");
- return 0;
- }
- addr->sun_path[len] = 0;
- }
- addr->sun_family = s->sock_family;
- memcpy(addr->sun_path, path, len);
- #if defined(PYOS_OS2)
- *len_ret = sizeof(*addr);
- #else
- *len_ret = len + sizeof(*addr) - sizeof(addr->sun_path);
- #endif
- return 1;
- }
- #endif /* AF_UNIX */
- #if defined(AF_NETLINK)
- case AF_NETLINK:
- {
- struct sockaddr_nl* addr;
- int pid, groups;
- addr = (struct sockaddr_nl *)addr_ret;
- if (!PyTuple_Check(args)) {
- PyErr_Format(
- PyExc_TypeError,
- "getsockaddrarg: "
- "AF_NETLINK address must be tuple, not %.500s",
- args->ob_type->tp_name);
- return 0;
- }
- if (!PyArg_ParseTuple(args, "II:getsockaddrarg", &pid, &groups))
- return 0;
- addr->nl_family = AF_NETLINK;
- addr->nl_pid = pid;
- addr->nl_groups = groups;
- *len_ret = sizeof(*addr);
- return 1;
- }
- #endif
- case AF_INET:
- {
- struct sockaddr_in* addr;
- char *host;
- int port, result;
- if (!PyTuple_Check(args)) {
- PyErr_Format(
- PyExc_TypeError,
- "getsockaddrarg: "
- "AF_INET address must be tuple, not %.500s",
- args->ob_type->tp_name);
- return 0;
- }
- if (!PyArg_ParseTuple(args, "eti:getsockaddrarg",
- "idna", &host, &port))
- return 0;
- addr=(struct sockaddr_in*)addr_ret;
- result = setipaddr(host, (struct sockaddr *)addr,
- sizeof(*addr), AF_INET);
- PyMem_Free(host);
- if (result < 0)
- return 0;
- addr->sin_family = AF_INET;
- addr->sin_port = htons((short)port);
- *len_ret = sizeof *addr;
- return 1;
- }
- #ifdef ENABLE_IPV6
- case AF_INET6:
- {
- struct sockaddr_in6* addr;
- char *host;
- int port, flowinfo, scope_id, result;
- flowinfo = scope_id = 0;
- if (!PyTuple_Check(args)) {
- PyErr_Format(
- PyExc_TypeError,
- "getsockaddrarg: "
- "AF_INET6 address must be tuple, not %.500s",
- args->ob_type->tp_name);
- return 0;
- }
- if (!PyArg_ParseTuple(args, "eti|ii",
- "idna", &host, &port, &flowinfo,
- &scope_id)) {
- return 0;
- }
- addr = (struct sockaddr_in6*)addr_ret;
- result = setipaddr(host, (struct sockaddr *)addr,
- sizeof(*addr), AF_INET6);
- PyMem_Free(host);
- if (result < 0)
- return 0;
- addr->sin6_family = s->sock_family;
- addr->sin6_port = htons((short)port);
- addr->sin6_flowinfo = flowinfo;
- addr->sin6_scope_id = scope_id;
- *len_ret = sizeof *addr;
- return 1;
- }
- #endif
- #ifdef USE_BLUETOOTH
- case AF_BLUETOOTH:
- {
- switch (s->sock_proto) {
- case BTPROTO_L2CAP:
- {
- struct sockaddr_l2 *addr;
- char *straddr;
- addr = (struct sockaddr_l2 *)addr_ret;
- _BT_L2_MEMB(addr, family) = AF_BLUETOOTH;
- if (!PyArg_ParseTuple(args, "si", &straddr,
- &_BT_L2_MEMB(addr, psm))) {
- PyErr_SetString(socket_error, "getsockaddrarg: "
- "wrong format");
- return 0;
- }
- if (setbdaddr(straddr, &_BT_L2_MEMB(addr, bdaddr)) < 0)
- return 0;
- *len_ret = sizeof *addr;
- return 1;
- }
- case BTPROTO_RFCOMM:
- {
- struct sockaddr_rc *addr;
- char *straddr;
- addr = (struct sockaddr_rc *)addr_ret;
- _BT_RC_MEMB(addr, family) = AF_BLUETOOTH;
- if (!PyArg_ParseTuple(args, "si", &straddr,
- &_BT_RC_MEMB(addr, channel))) {
- PyErr_SetString(socket_error, "getsockaddrarg: "
- "wrong format");
- return 0;
- }
- if (setbdaddr(straddr, &_BT_RC_MEMB(addr, bdaddr)) < 0)
- return 0;
- *len_ret = sizeof *addr;
- return 1;
- }
- #if !defined(__FreeBSD__)
- case BTPROTO_SCO:
- {
- struct sockaddr_sco *addr;
- char *straddr;
- addr = (struct sockaddr_sco *)addr_ret;
- _BT_SCO_MEMB(addr, family) = AF_BLUETOOTH;
- straddr = PyString_AsString(args);
- if (straddr == NULL) {
- PyErr_SetString(socket_error, "getsockaddrarg: "
- "wrong format");
- return 0;
- }
- if (setbdaddr(straddr, &_BT_SCO_MEMB(addr, bdaddr)) < 0)
- return 0;
- *len_ret = sizeof *addr;
- return 1;
- }
- #endif
- default:
- PyErr_SetString(socket_error, "getsockaddrarg: unknown Bluetooth protocol");
- return 0;
- }
- }
- #endif
- #ifdef HAVE_NETPACKET_PACKET_H
- case AF_PACKET:
- {
- struct sockaddr_ll* addr;
- struct ifreq ifr;
- char *interfaceName;
- int protoNumber;
- int hatype = 0;
- int pkttype = 0;
- char *haddr = NULL;
- unsigned int halen = 0;
- if (!PyTuple_Check(args)) {
- PyErr_Format(
- PyExc_TypeError,
- "getsockaddrarg: "
- "AF_PACKET address must be tuple, not %.500s",
- args->ob_type->tp_name);
- return 0;
- }
- if (!PyArg_ParseTuple(args, "si|iis#", &interfaceName,
- &protoNumber, &pkttype, &hatype,
- &haddr, &halen))
- return 0;
- strncpy(ifr.ifr_name, interfaceName, sizeof(ifr.ifr_name));
- ifr.ifr_name[(sizeof(ifr.ifr_name))-1] = '\0';
- if (ioctl(s->sock_fd, SIOCGIFINDEX, &ifr) < 0) {
- s->errorhandler();
- return 0;
- }
- if (halen > 8) {
- PyErr_SetString(PyExc_ValueError,
- "Hardware address must be 8 bytes or less");
- return 0;
- }
- addr = (struct sockaddr_ll*)addr_ret;
- addr->sll_family = AF_PACKET;
- addr->sll_protocol = htons((short)protoNumber);
- addr->sll_ifindex = ifr.ifr_ifindex;
- addr->sll_pkttype = pkttype;
- addr->sll_hatype = hatype;
- if (halen != 0) {
- memcpy(&addr->sll_addr, haddr, halen);
- }
- addr->sll_halen = halen;
- *len_ret = sizeof *addr;
- return 1;
- }
- #endif
- /* More cases here... */
- default:
- PyErr_SetString(socket_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) {
- #if defined(AF_UNIX)
- case AF_UNIX:
- {
- *len_ret = sizeof (struct sockaddr_un);
- return 1;
- }
- #endif /* AF_UNIX */
- #if defined(AF_NETLINK)
- case AF_NETLINK:
- {
- *len_ret = sizeof (struct sockaddr_nl);
- return 1;
- }
- #endif
- case AF_INET:
- {
- *len_ret = sizeof (struct sockaddr_in);
- return 1;
- }
- #ifdef ENABLE_IPV6
- case AF_INET6:
- {
- *len_ret = sizeof (struct sockaddr_in6);
- return 1;
- }
- #endif
- #ifdef USE_BLUETOOTH
- case AF_BLUETOOTH:
- {
- switch(s->sock_proto)
- {
- case BTPROTO_L2CAP:
- *len_ret = sizeof (struct sockaddr_l2);
- return 1;
- case BTPROTO_RFCOMM:
- *len_ret = sizeof (struct sockaddr_rc);
- return 1;
- #if !defined(__FreeBSD__)
- case BTPROTO_SCO:
- *len_ret = sizeof (struct sockaddr_sco);
- return 1;
- #endif
- default:
- PyErr_SetString(socket_error, "getsockaddrlen: "
- "unknown BT protocol");
- return 0;
- }
- }
- #endif
- #ifdef HAVE_NETPACKET_PACKET_H
- case AF_PACKET:
- {
- *len_ret = sizeof (struct sockaddr_ll);
- return 1;
- }
- #endif
- /* More cases here... */
- default:
- PyErr_SetString(socket_error, "getsockaddrlen: bad family");
- return 0;
- }
- }
- /* s.accept() method */
- static PyObject *
- sock_accept(PySocketSockObject *s)
- {
- sock_addr_t addrbuf;
- SOCKET_T newfd;
- socklen_t addrlen;
- PyObject *sock = NULL;
- PyObject *addr = NULL;
- PyObject *res = NULL;
- int timeout;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- memset(&addrbuf, 0, addrlen);
- #ifdef MS_WINDOWS
- newfd = INVALID_SOCKET;
- #else
- newfd = -1;
- #endif
- if (!IS_SELECTABLE(s))
- return select_error();
- Py_BEGIN_ALLOW_THREADS
- timeout = internal_select(s, 0);
- if (!timeout)
- newfd = accept(s->sock_fd, SAS2SA(&addrbuf), &addrlen);
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return NULL;
- }
- #ifdef MS_WINDOWS
- if (newfd == INVALID_SOCKET)
- #else
- if (newfd < 0)
- #endif
- return s->errorhandler();
- /* Create the new object with unspecified family,
- to avoid calls to bind() etc. on it. */
- sock = (PyObject *) new_sockobject(newfd,
- s->sock_family,
- s->sock_type,
- s->sock_proto);
- if (sock == NULL) {
- SOCKETCLOSE(newfd);
- goto finally;
- }
- addr = makesockaddr(s->sock_fd, SAS2SA(&addrbuf),
- addrlen, s->sock_proto);
- if (addr == NULL)
- goto finally;
- res = PyTuple_Pack(2, sock, addr);
- finally:
- Py_XDECREF(sock);
- Py_XDECREF(addr);
- return res;
- }
- PyDoc_STRVAR(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(flag) method. Argument:
- False -- non-blocking mode; same as settimeout(0)
- True -- blocking mode; same as settimeout(None)
- */
- static PyObject *
- sock_setblocking(PySocketSockObject *s, PyObject *arg)
- {
- int block;
- block = PyInt_AsLong(arg);
- if (block == -1 && PyErr_Occurred())
- return NULL;
- s->sock_timeout = block ? -1.0 : 0.0;
- internal_setblocking(s, block);
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(setblocking_doc,
- "setblocking(flag)\n\
- \n\
- Set the socket to blocking (flag is true) or non-blocking (false).\n\
- setblocking(True) is equivalent to settimeout(None);\n\
- setblocking(False) is equivalent to settimeout(0.0).");
- /* s.settimeout(timeout) method. Argument:
- None -- no timeout, blocking mode; same as setblocking(True)
- 0.0 -- non-blocking mode; same as setblocking(False)
- > 0 -- timeout mode; operations time out after timeout seconds
- < 0 -- illegal; raises an exception
- */
- static PyObject *
- sock_settimeout(PySocketSockObject *s, PyObject *arg)
- {
- double timeout;
- if (arg == Py_None)
- timeout = -1.0;
- else {
- timeout = PyFloat_AsDouble(arg);
- if (timeout < 0.0) {
- if (!PyErr_Occurred())
- PyErr_SetString(PyExc_ValueError,
- "Timeout value out of range");
- return NULL;
- }
- }
- s->sock_timeout = timeout;
- internal_setblocking(s, timeout < 0.0);
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(settimeout_doc,
- "settimeout(timeout)\n\
- \n\
- Set a timeout on socket operations. 'timeout' can be a float,\n\
- giving in seconds, or None. Setting a timeout of None disables\n\
- the timeout feature and is equivalent to setblocking(1).\n\
- Setting a timeout of zero is the same as setblocking(0).");
- /* s.gettimeout() method.
- Returns the timeout associated with a socket. */
- static PyObject *
- sock_gettimeout(PySocketSockObject *s)
- {
- if (s->sock_timeout < 0.0) {
- Py_INCREF(Py_None);
- return Py_None;
- }
- else
- return PyFloat_FromDouble(s->sock_timeout);
- }
- PyDoc_STRVAR(gettimeout_doc,
- "gettimeout() -> timeout\n\
- \n\
- Returns the timeout in floating seconds associated with socket \n\
- operations. A timeout of None indicates that timeouts on socket \n\
- operations are disabled.");
- #ifdef RISCOS
- /* s.sleeptaskw(1 | 0) method */
- static PyObject *
- sock_sleeptaskw(PySocketSockObject *s,PyObject *arg)
- {
- int block;
- block = PyInt_AsLong(arg);
- if (block == -1 && PyErr_Occurred())
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- socketioctl(s->sock_fd, 0x80046679, (u_long*)&block);
- Py_END_ALLOW_THREADS
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(sleeptaskw_doc,
- "sleeptaskw(flag)\n\
- \n\
- Allow sleeps in taskwindows.");
- #endif
- /* 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 *
- sock_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 s->errorhandler();
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(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 *
- sock_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(socket_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 s->errorhandler();
- return PyInt_FromLong(flag);
- }
- #ifdef __VMS
- /* socklen_t is unsigned so no negative test is needed,
- test buflen == 0 is previously done */
- if (buflen > 1024) {
- #else
- if (buflen <= 0 || buflen > 1024) {
- #endif
- PyErr_SetString(socket_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_AS_STRING(buf), &buflen);
- if (res < 0) {
- Py_DECREF(buf);
- return s->errorhandler();
- }
- _PyString_Resize(&buf, buflen);
- return buf;
- #endif /* __BEOS__ */
- }
- PyDoc_STRVAR(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 *
- sock_bind(PySocketSockObject *s, PyObject *addro)
- {
- sock_addr_t addrbuf;
- int addrlen;
- int res;
- if (!getsockaddrarg(s, addro, SAS2SA(&addrbuf), &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = bind(s->sock_fd, SAS2SA(&addrbuf), addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return s->errorhandler();
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(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. For raw packet\n\
- sockets the address is a tuple (ifname, proto [,pkttype [,hatype]])");
- /* s.close() method.
- Set the file descriptor to -1 so operations tried subsequently
- will surely fail. */
- static PyObject *
- sock_close(PySocketSockObject *s)
- {
- SOCKET_T fd;
- if ((fd = s->sock_fd) != -1) {
- s->sock_fd = -1;
- Py_BEGIN_ALLOW_THREADS
- (void) SOCKETCLOSE(fd);
- Py_END_ALLOW_THREADS
- }
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(close_doc,
- "close()\n\
- \n\
- Close the socket. It cannot be used after this call.");
- static int
- internal_connect(PySocketSockObject *s, struct sockaddr *addr, int addrlen,
- int *timeoutp)
- {
- int res, timeout;
- timeout = 0;
- res = connect(s->sock_fd, addr, addrlen);
- #ifdef MS_WINDOWS
- if (s->sock_timeout > 0.0) {
- if (res < 0 && WSAGetLastError() == WSAEWOULDBLOCK &&
- IS_SELECTABLE(s)) {
- /* This is a mess. Best solution: trust select */
- fd_set fds;
- fd_set fds_exc;
- struct timeval tv;
- tv.tv_sec = (int)s->sock_timeout;
- tv.tv_usec = (int)((s->sock_timeout - tv.tv_sec) * 1e6);
- FD_ZERO(&fds);
- FD_SET(s->sock_fd, &fds);
- FD_ZERO(&fds_exc);
- FD_SET(s->sock_fd, &fds_exc);
- res = select(s->sock_fd+1, NULL, &fds, &fds_exc, &tv);
- if (res == 0) {
- res = WSAEWOULDBLOCK;
- timeout = 1;
- } else if (res > 0) {
- if (FD_ISSET(s->sock_fd, &fds))
- /* The socket is in the writeable set - this
- means connected */
- res = 0;
- else {
- /* As per MS docs, we need to call getsockopt()
- to get the underlying error */
- int res_size = sizeof res;
- /* It must be in the exception set */
- assert(FD_ISSET(s->sock_fd, &fds_exc));
- if (0 == getsockopt(s->sock_fd, SOL_SOCKET, SO_ERROR,
- (char *)&res, &res_size))
- /* getsockopt also clears WSAGetLastError,
- so reset it back. */
- WSASetLastError(res);
- else
- res = WSAGetLastError();
- }
- }
- /* else if (res < 0) an error occurred */
- }
- }
- if (res < 0)
- res = WSAGetLastError();
- #else
- if (s->sock_timeout > 0.0) {
- if (res < 0 && errno == EINPROGRESS && IS_SELECTABLE(s)) {
- timeout = internal_select(s, 1);
- if (timeout == 0) {
- res = connect(s->sock_fd, addr, addrlen);
- if (res < 0 && errno == EISCONN)
- res = 0;
- }
- else if (timeout == -1)
- res = errno; /* had error */
- else
- res = EWOULDBLOCK; /* timed out */
- }
- }
- if (res < 0)
- res = errno;
- #endif
- *timeoutp = timeout;
- return res;
- }
- /* s.connect(sockaddr) method */
- static PyObject *
- sock_connect(PySocketSockObject *s, PyObject *addro)
- {
- sock_addr_t addrbuf;
- int addrlen;
- int res;
- int timeout;
- if (!getsockaddrarg(s, addro, SAS2SA(&addrbuf), &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = internal_connect(s, SAS2SA(&addrbuf), addrlen, &timeout);
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return NULL;
- }
- if (res != 0)
- return s->errorhandler();
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(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 *
- sock_connect_ex(PySocketSockObject *s, PyObject *addro)
- {
- sock_addr_t addrbuf;
- int addrlen;
- int res;
- int timeout;
- if (!getsockaddrarg(s, addro, SAS2SA(&addrbuf), &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = internal_connect(s, SAS2SA(&addrbuf), addrlen, &timeout);
- Py_END_ALLOW_THREADS
- /* Signals are not errors (though they may raise exceptions). Adapted
- from PyErr_SetFromErrnoWithFilenameObject(). */
- #ifdef EINTR
- if (res == EINTR && PyErr_CheckSignals())
- return NULL;
- #endif
- return PyInt_FromLong((long) res);
- }
- PyDoc_STRVAR(connect_ex_doc,
- "connect_ex(address) -> errno\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 *
- sock_fileno(PySocketSockObject *s)
- {
- #if SIZEOF_SOCKET_T <= SIZEOF_LONG
- return PyInt_FromLong((long) s->sock_fd);
- #else
- return PyLong_FromLongLong((PY_LONG_LONG)s->sock_fd);
- #endif
- }
- PyDoc_STRVAR(fileno_doc,
- "fileno() -> integer\n\
- \n\
- Return the integer file descriptor of the socket.");
- #ifndef NO_DUP
- /* s.dup() method */
- static PyObject *
- sock_dup(PySocketSockObject *s)
- {
- SOCKET_T newfd;
- PyObject *sock;
- newfd = dup(s->sock_fd);
- if (newfd < 0)
- return s->errorhandler();
- sock = (PyObject *) new_sockobject(newfd,
- s->sock_family,
- s->sock_type,
- s->sock_proto);
- if (sock == NULL)
- SOCKETCLOSE(newfd);
- return sock;
- }
- PyDoc_STRVAR(dup_doc,
- "dup() -> socket object\n\
- \n\
- Return a new socket object connected to the same system resource.");
- #endif
- /* s.getsockname() method */
- static PyObject *
- sock_getsockname(PySocketSockObject *s)
- {
- sock_addr_t addrbuf;
- int res;
- socklen_t addrlen;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- memset(&addrbuf, 0, addrlen);
- Py_BEGIN_ALLOW_THREADS
- res = getsockname(s->sock_fd, SAS2SA(&addrbuf), &addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return s->errorhandler();
- return makesockaddr(s->sock_fd, SAS2SA(&addrbuf), addrlen,
- s->sock_proto);
- }
- PyDoc_STRVAR(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 *
- sock_getpeername(PySocketSockObject *s)
- {
- sock_addr_t addrbuf;
- int res;
- socklen_t addrlen;
- if (!getsockaddrlen(s, &addrlen))
- return NULL;
- memset(&addrbuf, 0, addrlen);
- Py_BEGIN_ALLOW_THREADS
- res = getpeername(s->sock_fd, SAS2SA(&addrbuf), &addrlen);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return s->errorhandler();
- return makesockaddr(s->sock_fd, SAS2SA(&addrbuf), addrlen,
- s->sock_proto);
- }
- PyDoc_STRVAR(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 *
- sock_listen(PySocketSockObject *s, PyObject *arg)
- {
- int backlog;
- int res;
- backlog = PyInt_AsLong(arg);
- if (backlog == -1 && PyErr_Occurred())
- 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 s->errorhandler();
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(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 *
- sock_makefile(PySocketSockObject *s, PyObject *args)
- {
- extern int fclose(FILE *);
- char *mode = "r";
- int bufsize = -1;
- #ifdef MS_WIN32
- Py_intptr_t fd;
- #else
- int fd;
- #endif
- FILE *fp;
- PyObject *f;
- #ifdef __VMS
- char *mode_r = "r";
- char *mode_w = "w";
- #endif
- if (!PyArg_ParseTuple(args, "|si:makefile", &mode, &bufsize))
- return NULL;
- #ifdef __VMS
- if (strcmp(mode,"rb") == 0) {
- mode = mode_r;
- }
- else {
- if (strcmp(mode,"wb") == 0) {
- mode = mode_w;
- }
- }
- #endif
- #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 s->errorhandler();
- }
- f = PyFile_FromFile(fp, "<socket>", mode, fclose);
- if (f != NULL)
- PyFile_SetBufSize(f, bufsize);
- return f;
- }
- PyDoc_STRVAR(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 */
- /*
- * This is the guts of the recv() and recv_into() methods, which reads into a
- * char buffer. If you have any inc/def ref to do to the objects that contain
- * the buffer, do it in the caller. This function returns the number of bytes
- * succesfully read. If there was an error, it returns -1. Note that it is
- * also possible that we return a number of bytes smaller than the request
- * bytes.
- */
- static ssize_t
- sock_recv_guts(PySocketSockObject *s, char* cbuf, int len, int flags)
- {
- ssize_t outlen = -1;
- int timeout;
- #ifdef __VMS
- int remaining;
- char *read_buf;
- #endif
- if (!IS_SELECTABLE(s)) {
- select_error();
- return -1;
- }
- #ifndef __VMS
- Py_BEGIN_ALLOW_THREADS
- timeout = internal_select(s, 0);
- if (!timeout)
- outlen = recv(s->sock_fd, cbuf, len, flags);
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return -1;
- }
- if (outlen < 0) {
- /* Note: the call to errorhandler() ALWAYS indirectly returned
- NULL, so ignore its return value */
- s->errorhandler();
- return -1;
- }
- #else
- read_buf = cbuf;
- remaining = len;
- while (remaining != 0) {
- unsigned int segment;
- int nread = -1;
- segment = remaining /SEGMENT_SIZE;
- if (segment != 0) {
- segment = SEGMENT_SIZE;
- }
- else {
- segment = remaining;
- }
- Py_BEGIN_ALLOW_THREADS
- timeout = internal_select(s, 0);
- if (!timeout)
- nread = recv(s->sock_fd, read_buf, segment, flags);
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return -1;
- }
- if (nread < 0) {
- s->errorhandler();
- return -1;
- }
- if (nread != remaining) {
- read_buf += nread;
- break;
- }
- remaining -= segment;
- read_buf += segment;
- }
- outlen = read_buf - cbuf;
- #endif /* !__VMS */
- return outlen;
- }
- /* s.recv(nbytes [,flags]) method */
- static PyObject *
- sock_recv(PySocketSockObject *s, PyObject *args)
- {
- int recvlen, flags = 0;
- ssize_t outlen;
- PyObject *buf;
- if (!PyArg_ParseTuple(args, "i|i:recv", &recvlen, &flags))
- return NULL;
- if (recvlen < 0) {
- PyErr_SetString(PyExc_ValueError,
- "negative buffersize in recv");
- return NULL;
- }
- /* Allocate a new string. */
- buf = PyString_FromStringAndSize((char *) 0, recvlen);
- if (buf == NULL)
- return NULL;
- /* Call the guts */
- outlen = sock_recv_guts(s, PyString_AS_STRING(buf), recvlen, flags);
- if (outlen < 0) {
- /* An error occurred, release the string and return an
- error. */
- Py_DECREF(buf);
- return NULL;
- }
- if (outlen != recvlen) {
- /* We did not read as many bytes as we anticipated, resize the
- string if possible and be succesful. */
- if (_PyString_Resize(&buf, outlen) < 0)
- /* Oopsy, not so succesful after all. */
- return NULL;
- }
- return buf;
- }
- PyDoc_STRVAR(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.recv_into(buffer, [nbytes [,flags]]) method */
- static PyObject*
- sock_recv_into(PySocketSockObject *s, PyObject *args, PyObject *kwds)
- {
- static char *kwlist[] = {"buffer", "nbytes", "flags", 0};
- int recvlen = 0, flags = 0;
- ssize_t readlen;
- char *buf;
- int buflen;
- /* Get the buffer's memory */
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "w#|ii:recv_into", kwlist,
- &buf, &buflen, &recvlen, &flags))
- return NULL;
- assert(buf != 0 && buflen > 0);
- if (recvlen < 0) {
- PyErr_SetString(PyExc_ValueError,
- "negative buffersize in recv_into");
- return NULL;
- }
- if (recvlen == 0) {
- /* If nbytes was not specified, use the buffer's length */
- recvlen = buflen;
- }
- /* Check if the buffer is large enough */
- if (buflen < recvlen) {
- PyErr_SetString(PyExc_ValueError,
- "buffer too small for requested bytes");
- return NULL;
- }
- /* Call the guts */
- readlen = sock_recv_guts(s, buf, recvlen, flags);
- if (readlen < 0) {
- /* Return an error. */
- return NULL;
- }
- /* Return the number of bytes read. Note that we do not do anything
- special here in the case that readlen < recvlen. */
- return PyInt_FromSsize_t(readlen);
- }
- PyDoc_STRVAR(recv_into_doc,
- "recv_into(buffer, [nbytes[, flags]]) -> nbytes_read\n\
- \n\
- A version of recv() that stores its data into a buffer rather than creating \n\
- a new string. Receive up to buffersize bytes from the socket. If buffersize \n\
- is not specified (or 0), receive up to the size available in the given buffer.\n\
- \n\
- See recv() for documentation about the flags.");
- /*
- * This is the guts of the recv() and recv_into() methods, which reads into a
- * char buffer. If you have any inc/def ref to do to the objects that contain
- * the buffer, do it in the caller. This function returns the number of bytes
- * succesfully read. If there was an error, it returns -1. Note that it is
- * also possible that we return a number of bytes smaller than the request
- * bytes.
- *
- * 'addr' is a return value for the address object. Note that you must decref
- * it yourself.
- */
- static ssize_t
- sock_recvfrom_guts(PySocketSockObject *s, char* cbuf, int len, int flags,
- PyObject** addr)
- {
- sock_addr_t addrbuf;
- int timeout;
- ssize_t n = -1;
- socklen_t addrlen;
- *addr = NULL;
- if (!getsockaddrlen(s, &addrlen))
- return -1;
- if (!IS_SELECTABLE(s)) {
- select_error();
- return -1;
- }
- Py_BEGIN_ALLOW_THREADS
- memset(&addrbuf, 0, addrlen);
- timeout = internal_select(s, 0);
- if (!timeout) {
- #ifndef MS_WINDOWS
- #if defined(PYOS_OS2) && !defined(PYCC_GCC)
- n = recvfrom(s->sock_fd, cbuf, len, flags,
- SAS2SA(&addrbuf), &addrlen);
- #else
- n = recvfrom(s->sock_fd, cbuf, len, flags,
- (void *) &addrbuf, &addrlen);
- #endif
- #else
- n = recvfrom(s->sock_fd, cbuf, len, flags,
- SAS2SA(&addrbuf), &addrlen);
- #endif
- }
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return -1;
- }
- if (n < 0) {
- s->errorhandler();
- return -1;
- }
- if (!(*addr = makesockaddr(s->sock_fd, SAS2SA(&addrbuf),
- addrlen, s->sock_proto)))
- return -1;
- return n;
- }
- /* s.recvfrom(nbytes [,flags]) method */
- static PyObject *
- sock_recvfrom(PySocketSockObject *s, PyObject *args)
- {
- PyObject *buf = NULL;
- PyObject *addr = NULL;
- PyObject *ret = NULL;
- int recvlen, flags = 0;
- ssize_t outlen;
- if (!PyArg_ParseTuple(args, "i|i:recvfrom", &recvlen, &flags))
- return NULL;
- if (recvlen < 0) {
- PyErr_SetString(PyExc_ValueError,
- "negative buffersize in recvfrom");
- return NULL;
- }
- buf = PyString_FromStringAndSize((char *) 0, recvlen);
- if (buf == NULL)
- return NULL;
- outlen = sock_recvfrom_guts(s, PyString_AS_STRING(buf),
- recvlen, flags, &addr);
- if (outlen < 0) {
- goto finally;
- }
- if (outlen != recvlen) {
- /* We did not read as many bytes as we anticipated, resize the
- string if possible and be succesful. */
- if (_PyString_Resize(&buf, outlen) < 0)
- /* Oopsy, not so succesful after all. */
- goto finally;
- }
- ret = PyTuple_Pack(2, buf, addr);
- finally:
- Py_XDECREF(buf);
- Py_XDECREF(addr);
- return ret;
- }
- PyDoc_STRVAR(recvfrom_doc,
- "recvfrom(buffersize[, flags]) -> (data, address info)\n\
- \n\
- Like recv(buffersize, flags) but also return the sender's address info.");
- /* s.recvfrom_into(buffer[, nbytes [,flags]]) method */
- static PyObject *
- sock_recvfrom_into(PySocketSockObject *s, PyObject *args, PyObject* kwds)
- {
- static char *kwlist[] = {"buffer", "nbytes", "flags", 0};
- int recvlen = 0, flags = 0;
- ssize_t readlen;
- char *buf;
- int buflen;
- PyObject *addr = NULL;
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "w#|ii:recvfrom_into",
- kwlist, &buf, &buflen,
- &recvlen, &flags))
- return NULL;
- assert(buf != 0 && buflen > 0);
- if (recvlen < 0) {
- PyErr_SetString(PyExc_ValueError,
- "negative buffersize in recvfrom_into");
- return NULL;
- }
- if (recvlen == 0) {
- /* If nbytes was not specified, use the buffer's length */
- recvlen = buflen;
- }
- readlen = sock_recvfrom_guts(s, buf, recvlen, flags, &addr);
- if (readlen < 0) {
- /* Return an error */
- Py_XDECREF(addr);
- return NULL;
- }
- /* Return the number of bytes read and the address. Note that we do
- not do anything special here in the case that readlen < recvlen. */
- return Py_BuildValue("lN", readlen, addr);
- }
- PyDoc_STRVAR(recvfrom_into_doc,
- "recvfrom_into(buffer[, nbytes[, flags]]) -> (nbytes, address info)\n\
- \n\
- Like recv_into(buffer[, nbytes[, flags]]) but also return the sender's address info.");
- /* s.send(data [,flags]) method */
- static PyObject *
- sock_send(PySocketSockObject *s, PyObject *args)
- {
- char *buf;
- int len, n = -1, flags = 0, timeout;
- if (!PyArg_ParseTuple(args, "s#|i:send", &buf, &len, &flags))
- return NULL;
- if (!IS_SELECTABLE(s))
- return select_error();
- Py_BEGIN_ALLOW_THREADS
- timeout = internal_select(s, 1);
- if (!timeout)
- #ifdef __VMS
- n = sendsegmented(s->sock_fd, buf, len, flags);
- #else
- n = send(s->sock_fd, buf, len, flags);
- #endif
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return NULL;
- }
- if (n < 0)
- return s->errorhandler();
- return PyInt_FromLong((long)n);
- }
- PyDoc_STRVAR(send_doc,
- "send(data[, flags]) -> count\n\
- \n\
- Send a data string to the socket. For the optional flags\n\
- argument, see the Unix manual. Return the number of bytes\n\
- sent; this may be less than len(data) if the network is busy.");
- /* s.sendall(data [,flags]) method */
- static PyObject *
- sock_sendall(PySocketSockObject *s, PyObject *args)
- {
- char *buf;
- int len, n = -1, flags = 0, timeout;
- if (!PyArg_ParseTuple(args, "s#|i:sendall", &buf, &len, &flags))
- return NULL;
- if (!IS_SELECTABLE(s))
- return select_error();
- Py_BEGIN_ALLOW_THREADS
- do {
- timeout = internal_select(s, 1);
- n = -1;
- if (timeout)
- break;
- #ifdef __VMS
- n = sendsegmented(s->sock_fd, buf, len, flags);
- #else
- n = send(s->sock_fd, buf, len, flags);
- #endif
- if (n < 0)
- break;
- buf += n;
- len -= n;
- } while (len > 0);
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return NULL;
- }
- if (n < 0)
- return s->errorhandler();
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(sendall_doc,
- "sendall(data[, flags])\n\
- \n\
- Send a data string to the socket. For the optional flags\n\
- argument, see the Unix manual. This calls send() repeatedly\n\
- until all data is sent. If an error occurs, it's impossible\n\
- to tell how much data has been sent.");
- /* s.sendto(data, [flags,] sockaddr) method */
- static PyObject *
- sock_sendto(PySocketSockObject *s, PyObject *args)
- {
- PyObject *addro;
- char *buf;
- sock_addr_t addrbuf;
- int addrlen, len, n = -1, flags, timeout;
- 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 (!IS_SELECTABLE(s))
- return select_error();
- if (!getsockaddrarg(s, addro, SAS2SA(&addrbuf), &addrlen))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- timeout = internal_select(s, 1);
- if (!timeout)
- n = sendto(s->sock_fd, buf, len, flags, SAS2SA(&addrbuf), addrlen);
- Py_END_ALLOW_THREADS
- if (timeout == 1) {
- PyErr_SetString(socket_timeout, "timed out");
- return NULL;
- }
- if (n < 0)
- return s->errorhandler();
- return PyInt_FromLong((long)n);
- }
- PyDoc_STRVAR(sendto_doc,
- "sendto(data[, flags], address) -> count\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 *
- sock_shutdown(PySocketSockObject *s, PyObject *arg)
- {
- int how;
- int res;
- how = PyInt_AsLong(arg);
- if (how == -1 && PyErr_Occurred())
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- res = shutdown(s->sock_fd, how);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return s->errorhandler();
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(shutdown_doc,
- "shutdown(flag)\n\
- \n\
- Shut down the reading side of the socket (flag == SHUT_RD), the writing side\n\
- of the socket (flag == SHUT_WR), or both ends (flag == SHUT_RDWR).");
- /* List of methods for socket objects */
- static PyMethodDef sock_methods[] = {
- {"accept", (PyCFunction)sock_accept, METH_NOARGS,
- accept_doc},
- {"bind", (PyCFunction)sock_bind, METH_O,
- bind_doc},
- {"close", (PyCFunction)sock_close, METH_NOARGS,
- close_doc},
- {"connect", (PyCFunction)sock_connect, METH_O,
- connect_doc},
- {"connect_ex", (PyCFunction)sock_connect_ex, METH_O,
- connect_ex_doc},
- #ifndef NO_DUP
- {"dup", (PyCFunction)sock_dup, METH_NOARGS,
- dup_doc},
- #endif
- {"fileno", (PyCFunction)sock_fileno, METH_NOARGS,
- fileno_doc},
- #ifdef HAVE_GETPEERNAME
- {"getpeername", (PyCFunction)sock_getpeername,
- METH_NOARGS, getpeername_doc},
- #endif
- {"getsockname", (PyCFunction)sock_getsockname,
- METH_NOARGS, getsockname_doc},
- {"getsockopt", (PyCFunction)sock_getsockopt, METH_VARARGS,
- getsockopt_doc},
- {"listen", (PyCFunction)sock_listen, METH_O,
- listen_doc},
- #ifndef NO_DUP
- {"makefile", (PyCFunction)sock_makefile, METH_VARARGS,
- makefile_doc},
- #endif
- {"recv", (PyCFunction)sock_recv, METH_VARARGS,
- recv_doc},
- {"recv_into", (PyCFunction)sock_recv_into, METH_VARARGS | METH_KEYWORDS,
- recv_into_doc},
- {"recvfrom", (PyCFunction)sock_recvfrom, METH_VARARGS,
- recvfrom_doc},
- {"recvfrom_into", (PyCFunction)sock_recvfrom_into, METH_VARARGS | METH_KEYWORDS,
- recvfrom_into_doc},
- {"send", (PyCFunction)sock_send, METH_VARARGS,
- send_doc},
- {"sendall", (PyCFunction)sock_sendall, METH_VARARGS,
- sendall_doc},
- {"sendto", (PyCFunction)sock_sendto, METH_VARARGS,
- sendto_doc},
- {"setblocking", (PyCFunction)sock_setblocking, METH_O,
- setblocking_doc},
- {"settimeout", (PyCFunction)sock_settimeout, METH_O,
- settimeout_doc},
- {"gettimeout", (PyCFunction)sock_gettimeout, METH_NOARGS,
- gettimeout_doc},
- {"setsockopt", (PyCFunction)sock_setsockopt, METH_VARARGS,
- setsockopt_doc},
- {"shutdown", (PyCFunction)sock_shutdown, METH_O,
- shutdown_doc},
- #ifdef RISCOS
- {"sleeptaskw", (PyCFunction)sock_sleeptaskw, METH_O,
- sleeptaskw_doc},
- #endif
- {NULL, NULL} /* sentinel */
- };
- /* SockObject members */
- static PyMemberDef sock_memberlist[] = {
- {"family", T_INT, offsetof(PySocketSockObject, sock_family), READONLY, "the socket family"},
- {"type", T_INT, offsetof(PySocketSockObject, sock_type), READONLY, "the socket type"},
- {"proto", T_INT, offsetof(PySocketSockObject, sock_proto), READONLY, "the socket protocol"},
- {"timeout", T_DOUBLE, offsetof(PySocketSockObject, sock_timeout), READONLY, "the socket timeout"},
- {0},
- };
- /* Deallocate a socket object in response to the last Py_DECREF().
- First close the file description. */
- static void
- sock_dealloc(PySocketSockObject *s)
- {
- if (s->sock_fd != -1)
- (void) SOCKETCLOSE(s->sock_fd);
- s->ob_type->tp_free((PyObject *)s);
- }
- static PyObject *
- sock_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
- PyOS_snprintf(
- buf, sizeof(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);
- }
- /* Create a new, uninitialized socket object. */
- static PyObject *
- sock_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
- {
- PyObject *new;
- new = type->tp_alloc(type, 0);
- if (new != NULL) {
- ((PySocketSockObject *)new)->sock_fd = -1;
- ((PySocketSockObject *)new)->sock_timeout = -1.0;
- ((PySocketSockObject *)new)->errorhandler = &set_error;
- }
- return new;
- }
- /* Initialize a new socket object. */
- /*ARGSUSED*/
- static int
- sock_initobj(PyObject *self, PyObject *args, PyObject *kwds)
- {
- PySocketSockObject *s = (PySocketSockObject *)self;
- SOCKET_T fd;
- int family = AF_INET, type = SOCK_STREAM, proto = 0;
- static char *keywords[] = {"family", "type", "proto", 0};
- if (!PyArg_ParseTupleAndKeywords(args, kwds,
- "|iii:socket", keywords,
- &family, &type, &proto))
- return -1;
- 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
- {
- set_error();
- return -1;
- }
- init_sockobject(s, fd, family, type, proto);
- return 0;
- }
- /* Type object for socket objects. */
- static PyTypeObject sock_type = {
- PyObject_HEAD_INIT(0) /* Must fill in type value later */
- 0, /* ob_size */
- "_socket.socket", /* tp_name */
- sizeof(PySocketSockObject), /* tp_basicsize */
- 0, /* tp_itemsize */
- (destructor)sock_dealloc, /* tp_dealloc */
- 0, /* tp_print */
- 0, /* tp_getattr */
- 0, /* tp_setattr */
- 0, /* tp_compare */
- (reprfunc)sock_repr, /* tp_repr */
- 0, /* tp_as_number */
- 0, /* tp_as_sequence */
- 0, /* tp_as_mapping */
- 0, /* tp_hash */
- 0, /* tp_call */
- 0, /* tp_str */
- PyObject_GenericGetAttr, /* tp_getattro */
- 0, /* tp_setattro */
- 0, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
- sock_doc, /* tp_doc */
- 0, /* tp_traverse */
- 0, /* tp_clear */
- 0, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- 0, /* tp_iter */
- 0, /* tp_iternext */
- sock_methods, /* tp_methods */
- sock_memberlist, /* tp_members */
- 0, /* tp_getset */
- 0, /* tp_base */
- 0, /* tp_dict */
- 0, /* tp_descr_get */
- 0, /* tp_descr_set */
- 0, /* tp_dictoffset */
- sock_initobj, /* tp_init */
- PyType_GenericAlloc, /* tp_alloc */
- sock_new, /* tp_new */
- PyObject_Del, /* tp_free */
- };
- /* Python interface to gethostname(). */
- /*ARGSUSED*/
- static PyObject *
- socket_gethostname(PyObject *self, PyObject *unused)
- {
- char buf[1024];
- int res;
- Py_BEGIN_ALLOW_THREADS
- res = gethostname(buf, (int) sizeof buf - 1);
- Py_END_ALLOW_THREADS
- if (res < 0)
- return set_error();
- buf[sizeof buf - 1] = '\0';
- return PyString_FromString(buf);
- }
- PyDoc_STRVAR(gethostname_doc,
- "gethostname() -> string\n\
- \n\
- Return the current host name.");
- /* Python interface to gethostbyname(name). */
- /*ARGSUSED*/
- static PyObject *
- socket_gethostbyname(PyObject *self, PyObject *args)
- {
- char *name;
- sock_addr_t addrbuf;
- if (!PyArg_ParseTuple(args, "s:gethostbyname", &name))
- return NULL;
- if (setipaddr(name, SAS2SA(&addrbuf), sizeof(addrbuf), AF_INET) < 0)
- return NULL;
- return makeipaddr(SAS2SA(&addrbuf), sizeof(struct sockaddr_in));
- }
- PyDoc_STRVAR(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 *addr, int alen, int af)
- {
- char **pch;
- PyObject *rtn_tuple = (PyObject *)NULL;
- PyObject *name_list = (PyObject *)NULL;
- PyObject *addr_list = (PyObject *)NULL;
- PyObject *tmp;
- if (h == NULL) {
- /* Let's get real error message to return */
- #ifndef RISCOS
- set_herror(h_errno);
- #else
- PyErr_SetString(socket_error, "host not found");
- #endif
- return NULL;
- }
- if (h->h_addrtype != af) {
- #ifdef HAVE_STRERROR
- /* Let's get real error message to return */
- PyErr_SetString(socket_error,
- (char *)strerror(EAFNOSUPPORT));
- #else
- PyErr_SetString(
- socket_error,
- "Address family not supported by protocol family");
- #endif
- return NULL;
- }
- switch (af) {
- case AF_INET:
- if (alen < sizeof(struct sockaddr_in))
- return NULL;
- break;
- #ifdef ENABLE_IPV6
- case AF_INET6:
- if (alen < sizeof(struct sockaddr_in6))
- return NULL;
- break;
- #endif
- }
- if ((name_list = PyList_New(0)) == NULL)
- goto err;
- if ((addr_list = PyList_New(0)) == NULL)
- goto err;
- /* SF #1511317: h_aliases can be NULL */
- if (h->h_aliases) {
- 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;
- switch (af) {
- case AF_INET:
- {
- struct sockaddr_in sin;
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = af;
- #ifdef HAVE_SOCKADDR_SA_LEN
- sin.sin_len = sizeof(sin);
- #endif
- memcpy(&sin.sin_addr, *pch, sizeof(sin.sin_addr));
- tmp = makeipaddr((struct sockaddr *)&sin, sizeof(sin));
- if (pch == h->h_addr_list && alen >= sizeof(sin))
- memcpy((char *) addr, &sin, sizeof(sin));
- break;
- }
- #ifdef ENABLE_IPV6
- case AF_INET6:
- {
- struct sockaddr_in6 sin6;
- memset(&sin6, 0, sizeof(sin6));
- sin6.sin6_family = af;
- #ifdef HAVE_SOCKADDR_SA_LEN
- sin6.sin6_len = sizeof(sin6);
- #endif
- memcpy(&sin6.sin6_addr, *pch, sizeof(sin6.sin6_addr));
- tmp = makeipaddr((struct sockaddr *)&sin6,
- sizeof(sin6));
- if (pch == h->h_addr_list && alen >= sizeof(sin6))
- memcpy((char *) addr, &sin6, sizeof(sin6));
- break;
- }
- #endif
- default: /* can't happen */
- PyErr_SetString(socket_error,
- "unsupported address family");
- return NULL;
- }
- 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 *
- socket_gethostbyname_ex(PyObject *self, PyObject *args)
- {
- char *name;
- struct hostent *h;
- #ifdef ENABLE_IPV6
- struct sockaddr_storage addr;
- #else
- struct sockaddr_in addr;
- #endif
- struct sockaddr *sa;
- 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, (struct sockaddr *)&addr, sizeof(addr), AF_INET) < 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(netdb_lock, 1);
- #endif
- h = gethostbyname(name);
- #endif /* HAVE_GETHOSTBYNAME_R */
- Py_END_ALLOW_THREADS
- /* Some C libraries would require addr.__ss_family instead of
- addr.ss_family.
- Therefore, we cast the sockaddr_storage into sockaddr to
- access sa_family. */
- sa = (struct sockaddr*)&addr;
- ret = gethost_common(h, (struct sockaddr *)&addr, sizeof(addr),
- sa->sa_family);
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_release_lock(netdb_lock);
- #endif
- return ret;
- }
- PyDoc_STRVAR(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 *
- socket_gethostbyaddr(PyObject *self, PyObject *args)
- {
- #ifdef ENABLE_IPV6
- struct sockaddr_storage addr;
- #else
- struct sockaddr_in addr;
- #endif
- struct sockaddr *sa = (struct sockaddr *)&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 */
- char *ap;
- int al;
- int af;
- if (!PyArg_ParseTuple(args, "s:gethostbyaddr", &ip_num))
- return NULL;
- af = AF_UNSPEC;
- if (setipaddr(ip_num, sa, sizeof(addr), af) < 0)
- return NULL;
- af = sa->sa_family;
- ap = NULL;
- al = 0;
- switch (af) {
- case AF_INET:
- ap = (char *)&((struct sockaddr_in *)sa)->sin_addr;
- al = sizeof(((struct sockaddr_in *)sa)->sin_addr);
- break;
- #ifdef ENABLE_IPV6
- case AF_INET6:
- ap = (char *)&((struct sockaddr_in6 *)sa)->sin6_addr;
- al = sizeof(((struct sockaddr_in6 *)sa)->sin6_addr);
- break;
- #endif
- default:
- PyErr_SetString(socket_error, "unsupported address family");
- return NULL;
- }
- Py_BEGIN_ALLOW_THREADS
- #ifdef HAVE_GETHOSTBYNAME_R
- #if defined(HAVE_GETHOSTBYNAME_R_6_ARG)
- result = gethostbyaddr_r(ap, al, af,
- &hp_allocated, buf, buf_len,
- &h, &errnop);
- #elif defined(HAVE_GETHOSTBYNAME_R_5_ARG)
- h = gethostbyaddr_r(ap, al, af,
- &hp_allocated, buf, buf_len, &errnop);
- #else /* HAVE_GETHOSTBYNAME_R_3_ARG */
- memset((void *) &data, '\0', sizeof(data));
- result = gethostbyaddr_r(ap, al, af, &hp_allocated, &data);
- h = (result != 0) ? NULL : &hp_allocated;
- #endif
- #else /* not HAVE_GETHOSTBYNAME_R */
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_acquire_lock(netdb_lock, 1);
- #endif
- h = gethostbyaddr(ap, al, af);
- #endif /* HAVE_GETHOSTBYNAME_R */
- Py_END_ALLOW_THREADS
- ret = gethost_common(h, (struct sockaddr *)&addr, sizeof(addr), af);
- #ifdef USE_GETHOSTBYNAME_LOCK
- PyThread_release_lock(netdb_lock);
- #endif
- return ret;
- }
- PyDoc_STRVAR(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 *
- socket_getservbyname(PyObject *self, PyObject *args)
- {
- char *name, *proto=NULL;
- struct servent *sp;
- if (!PyArg_ParseTuple(args, "s|s:getservbyname", &name, &proto))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- sp = getservbyname(name, proto);
- Py_END_ALLOW_THREADS
- if (sp == NULL) {
- PyErr_SetString(socket_error, "service/proto not found");
- return NULL;
- }
- return PyInt_FromLong((long) ntohs(sp->s_port));
- }
- PyDoc_STRVAR(getservbyname_doc,
- "getservbyname(servicename[, protocolname]) -> integer\n\
- \n\
- Return a port number from a service name and protocol name.\n\
- The optional protocol name, if given, should be 'tcp' or 'udp',\n\
- otherwise any protocol will match.");
- /* Python interface to getservbyport(port).
- This only returns the service name, since the other info is already
- known or not useful (like the list of aliases). */
- /*ARGSUSED*/
- static PyObject *
- socket_getservbyport(PyObject *self, PyObject *args)
- {
- unsigned short port;
- char *proto=NULL;
- struct servent *sp;
- if (!PyArg_ParseTuple(args, "H|s:getservbyport", &port, &proto))
- return NULL;
- Py_BEGIN_ALLOW_THREADS
- sp = getservbyport(htons(port), proto);
- Py_END_ALLOW_THREADS
- if (sp == NULL) {
- PyErr_SetString(socket_error, "port/proto not found");
- return NULL;
- }
- return PyString_FromString(sp->s_name);
- }
- PyDoc_STRVAR(getservbyport_doc,
- "getservbyport(port[, protocolname]) -> string\n\
- \n\
- Return the service name from a port number and protocol name.\n\
- The optional protocol name, if given, should be 'tcp' or 'udp',\n\
- otherwise any protocol will match.");
- /* 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 *
- socket_getprotobyname(PyObject *self, PyObject *args)
- {
- char *name;
- struct protoent *sp;
- #ifdef __BEOS__
- /* Not available in BeOS yet. - [cjh] */
- PyErr_SetString(socket_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(socket_error, "protocol not found");
- return NULL;
- }
- return PyInt_FromLong((long) sp->p_proto);
- #endif
- }
- PyDoc_STRVAR(getprotobyname_doc,
- "getprotobyname(name) -> integer\n\
- \n\
- Return the protocol number for the named protocol. (Rarely used.)");
- #ifdef HAVE_SOCKETPAIR
- /* Create a pair of sockets using the socketpair() function.
- Arguments as for socket() except the default family is AF_UNIX if
- defined on the platform; otherwise, the default is AF_INET. */
- /*ARGSUSED*/
- static PyObject *
- socket_socketpair(PyObject *self, PyObject *args)
- {
- PySocketSockObject *s0 = NULL, *s1 = NULL;
- SOCKET_T sv[2];
- int family, type = SOCK_STREAM, proto = 0;
- PyObject *res = NULL;
- #if defined(AF_UNIX)
- family = AF_UNIX;
- #else
- family = AF_INET;
- #endif
- if (!PyArg_ParseTuple(args, "|iii:socketpair",
- &family, &type, &proto))
- return NULL;
- /* Create a pair of socket fds */
- if (socketpair(family, type, proto, sv) < 0)
- return set_error();
- s0 = new_sockobject(sv[0], family, type, proto);
- if (s0 == NULL)
- goto finally;
- s1 = new_sockobject(sv[1], family, type, proto);
- if (s1 == NULL)
- goto finally;
- res = PyTuple_Pack(2, s0, s1);
- finally:
- if (res == NULL) {
- if (s0 == NULL)
- SOCKETCLOSE(sv[0]);
- if (s1 == NULL)
- SOCKETCLOSE(sv[1]);
- }
- Py_XDECREF(s0);
- Py_XDECREF(s1);
- return res;
- }
- PyDoc_STRVAR(socketpair_doc,
- "socketpair([family[, type[, proto]]]) -> (socket object, socket object)\n\
- \n\
- Create a pair of socket objects from the sockets returned by the platform\n\
- socketpair() function.\n\
- The arguments are the same as for socket() except the default family is\n\
- AF_UNIX if defined on the platform; otherwise, the default is AF_INET.");
- #endif /* HAVE_SOCKETPAIR */
- #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 *
- socket_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 set_error();
- s = new_sockobject(fd, family, type, proto);
- return (PyObject *) s;
- }
- PyDoc_STRVAR(fromfd_doc,
- "fromfd(fd, family, type[, proto]) -> socket object\n\
- \n\
- Create a socket object from a duplicate of the given\n\
- file descriptor.\n\
- The remaining arguments are the same as for socket().");
- #endif /* NO_DUP */
- static PyObject *
- socket_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);
- }
- PyDoc_STRVAR(ntohs_doc,
- "ntohs(integer) -> integer\n\
- \n\
- Convert a 16-bit integer from network to host byte order.");
- static PyObject *
- socket_ntohl(PyObject *self, PyObject *arg)
- {
- unsigned long x;
- if (PyInt_Check(arg)) {
- x = PyInt_AS_LONG(arg);
- if (x == (unsigned long) -1 && PyErr_Occurred())
- return NULL;
- }
- else if (PyLong_Check(arg)) {
- x = PyLong_AsUnsignedLong(arg);
- if (x == (unsigned long) -1 && PyErr_Occurred())
- return NULL;
- #if SIZEOF_LONG > 4
- {
- unsigned long y;
- /* only want the trailing 32 bits */
- y = x & 0xFFFFFFFFUL;
- if (y ^ x)
- return PyErr_Format(PyExc_OverflowError,
- "long int larger than 32 bits");
- x = y;
- }
- #endif
- }
- else
- return PyErr_Format(PyExc_TypeError,
- "expected int/long, %s found",
- arg->ob_type->tp_name);
- if (x == (unsigned long) -1 && PyErr_Occurred())
- return NULL;
- return PyInt_FromLong(ntohl(x));
- }
- PyDoc_STRVAR(ntohl_doc,
- "ntohl(integer) -> integer\n\
- \n\
- Convert a 32-bit integer from network to host byte order.");
- static PyObject *
- socket_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);
- }
- PyDoc_STRVAR(htons_doc,
- "htons(integer) -> integer\n\
- \n\
- Convert a 16-bit integer from host to network byte order.");
- static PyObject *
- socket_htonl(PyObject *self, PyObject *arg)
- {
- unsigned long x;
- if (PyInt_Check(arg)) {
- x = PyInt_AS_LONG(arg);
- if (x == (unsigned long) -1 && PyErr_Occurred())
- return NULL;
- }
- else if (PyLong_Check(arg)) {
- x = PyLong_AsUnsignedLong(arg);
- if (x == (unsigned long) -1 && PyErr_Occurred())
- return NULL;
- #if SIZEOF_LONG > 4
- {
- unsigned long y;
- /* only want the trailing 32 bits */
- y = x & 0xFFFFFFFFUL;
- if (y ^ x)
- return PyErr_Format(PyExc_OverflowError,
- "long int larger than 32 bits");
- x = y;
- }
- #endif
- }
- else
- return PyErr_Format(PyExc_TypeError,
- "expected int/long, %s found",
- arg->ob_type->tp_name);
- return PyInt_FromLong(htonl(x));
- }
- PyDoc_STRVAR(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. */
- PyDoc_STRVAR(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*
- socket_inet_aton(PyObject *self, PyObject *args)
- {
- #ifndef INADDR_NONE
- #define INADDR_NONE (-1)
- #endif
- #ifdef HAVE_INET_ATON
- struct in_addr buf;
- #endif
- #if !defined(HAVE_INET_ATON) || defined(USE_INET_ATON_WEAKLINK)
- /* Have to use inet_addr() instead */
- unsigned long packed_addr;
- #endif
- char *ip_addr;
- if (!PyArg_ParseTuple(args, "s:inet_aton", &ip_addr))
- return NULL;
- #ifdef HAVE_INET_ATON
- #ifdef USE_INET_ATON_WEAKLINK
- if (inet_aton != NULL) {
- #endif
- if (inet_aton(ip_addr, &buf))
- return PyString_FromStringAndSize((char *)(&buf),
- sizeof(buf));
- PyErr_SetString(socket_error,
- "illegal IP address string passed to inet_aton");
- return NULL;
- #ifdef USE_INET_ATON_WEAKLINK
- } else {
- #endif
- #endif
- #if !defined(HAVE_INET_ATON) || defined(USE_INET_ATON_WEAKLINK)
- /* special-case this address as inet_addr might return INADDR_NONE
- * for this */
- if (strcmp(ip_addr, "255.255.255.255") == 0) {
- packed_addr = 0xFFFFFFFF;
- } else {
- packed_addr = inet_addr(ip_addr);
- if (packed_addr == INADDR_NONE) { /* invalid address */
- PyErr_SetString(socket_error,
- "illegal IP address string passed to inet_aton");
- return NULL;
- }
- }
- return PyString_FromStringAndSize((char *) &packed_addr,
- sizeof(packed_addr));
- #ifdef USE_INET_ATON_WEAKLINK
- }
- #endif
- #endif
- }
- PyDoc_STRVAR(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*
- socket_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(socket_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 HAVE_INET_PTON
- PyDoc_STRVAR(inet_pton_doc,
- "inet_pton(af, ip) -> packed IP address string\n\
- \n\
- Convert an IP address from string format to a packed string suitable\n\
- for use with low-level network functions.");
- static PyObject *
- socket_inet_pton(PyObject *self, PyObject *args)
- {
- int af;
- char* ip;
- int retval;
- #ifdef ENABLE_IPV6
- char packed[MAX(sizeof(struct in_addr), sizeof(struct in6_addr))];
- #else
- char packed[sizeof(struct in_addr)];
- #endif
- if (!PyArg_ParseTuple(args, "is:inet_pton", &af, &ip)) {
- return NULL;
- }
- #if !defined(ENABLE_IPV6) && defined(AF_INET6)
- if(af == AF_INET6) {
- PyErr_SetString(socket_error,
- "can't use AF_INET6, IPv6 is disabled");
- return NULL;
- }
- #endif
- retval = inet_pton(af, ip, packed);
- if (retval < 0) {
- PyErr_SetFromErrno(socket_error);
- return NULL;
- } else if (retval == 0) {
- PyErr_SetString(socket_error,
- "illegal IP address string passed to inet_pton");
- return NULL;
- } else if (af == AF_INET) {
- return PyString_FromStringAndSize(packed,
- sizeof(struct in_addr));
- #ifdef ENABLE_IPV6
- } else if (af == AF_INET6) {
- return PyString_FromStringAndSize(packed,
- sizeof(struct in6_addr));
- #endif
- } else {
- PyErr_SetString(socket_error, "unknown address family");
- return NULL;
- }
- }
- PyDoc_STRVAR(inet_ntop_doc,
- "inet_ntop(af, packed_ip) -> string formatted IP address\n\
- \n\
- Convert a packed IP address of the given family to string format.");
- static PyObject *
- socket_inet_ntop(PyObject *self, PyObject *args)
- {
- int af;
- char* packed;
- int len;
- const char* retval;
- #ifdef ENABLE_IPV6
- char ip[MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) + 1];
- #else
- char ip[INET_ADDRSTRLEN + 1];
- #endif
- /* Guarantee NUL-termination for PyString_FromString() below */
- memset((void *) &ip[0], '\0', sizeof(ip));
- if (!PyArg_ParseTuple(args, "is#:inet_ntop", &af, &packed, &len)) {
- return NULL;
- }
- if (af == AF_INET) {
- if (len != sizeof(struct in_addr)) {
- PyErr_SetString(PyExc_ValueError,
- "invalid length of packed IP address string");
- return NULL;
- }
- #ifdef ENABLE_IPV6
- } else if (af == AF_INET6) {
- if (len != sizeof(struct in6_addr)) {
- PyErr_SetString(PyExc_ValueError,
- "invalid length of packed IP address string");
- return NULL;
- }
- #endif
- } else {
- PyErr_Format(PyExc_ValueError,
- "unknown address family %d", af);
- return NULL;
- }
- retval = inet_ntop(af, packed, ip, sizeof(ip));
- if (!retval) {
- PyErr_SetFromErrno(socket_error);
- return NULL;
- } else {
- return PyString_FromString(retval);
- }
- /* NOTREACHED */
- PyErr_SetString(PyExc_RuntimeError, "invalid handling of inet_ntop");
- return NULL;
- }
- #endif /* HAVE_INET_PTON */
- /* Python interface to getaddrinfo(host, port). */
- /*ARGSUSED*/
- static PyObject *
- socket_getaddrinfo(PyObject *self, PyObject *args)
- {
- struct addrinfo hints, *res;
- struct addrinfo *res0 = NULL;
- PyObject *hobj = NULL;
- PyObject *pobj = (PyObject *)NULL;
- char pbuf[30];
- char *hptr, *pptr;
- int family, socktype, protocol, flags;
- int error;
- PyObject *all = (PyObject *)NULL;
- PyObject *single = (PyObject *)NULL;
- PyObject *idna = NULL;
- family = socktype = protocol = flags = 0;
- family = AF_UNSPEC;
- if (!PyArg_ParseTuple(args, "OO|iiii:getaddrinfo",
- &hobj, &pobj, &family, &socktype,
- &protocol, &flags)) {
- return NULL;
- }
- if (hobj == Py_None) {
- hptr = NULL;
- } else if (PyUnicode_Check(hobj)) {
- idna = PyObject_CallMethod(hobj, "encode", "s", "idna");
- if (!idna)
- return NULL;
- hptr = PyString_AsString(idna);
- } else if (PyString_Check(hobj)) {
- hptr = PyString_AsString(hobj);
- } else {
- PyErr_SetString(PyExc_TypeError,
- "getaddrinfo() argument 1 must be string or None");
- return NULL;
- }
- if (PyInt_Check(pobj)) {
- PyOS_snprintf(pbuf, sizeof(pbuf), "%ld", PyInt_AsLong(pobj));
- pptr = pbuf;
- } else if (PyString_Check(pobj)) {
- pptr = PyString_AsString(pobj);
- } else if (pobj == Py_None) {
- pptr = (char *)NULL;
- } else {
- PyErr_SetString(socket_error, "Int or String expected");
- goto err;
- }
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = family;
- hints.ai_socktype = socktype;
- hints.ai_protocol = protocol;
- hints.ai_flags = flags;
- Py_BEGIN_ALLOW_THREADS
- ACQUIRE_GETADDRINFO_LOCK
- error = getaddrinfo(hptr, pptr, &hints, &res0);
- Py_END_ALLOW_THREADS
- RELEASE_GETADDRINFO_LOCK /* see comment in setipaddr() */
- if (error) {
- set_gaierror(error);
- goto err;
- }
- if ((all = PyList_New(0)) == NULL)
- goto err;
- for (res = res0; res; res = res->ai_next) {
- PyObject *addr =
- makesockaddr(-1, res->ai_addr, res->ai_addrlen, protocol);
- if (addr == NULL)
- goto err;
- single = Py_BuildValue("iiisO", res->ai_family,
- res->ai_socktype, res->ai_protocol,
- res->ai_canonname ? res->ai_canonname : "",
- addr);
- Py_DECREF(addr);
- if (single == NULL)
- goto err;
- if (PyList_Append(all, single))
- goto err;
- Py_XDECREF(single);
- }
- Py_XDECREF(idna);
- if (res0)
- freeaddrinfo(res0);
- return all;
- err:
- Py_XDECREF(single);
- Py_XDECREF(all);
- Py_XDECREF(idna);
- if (res0)
- freeaddrinfo(res0);
- return (PyObject *)NULL;
- }
- PyDoc_STRVAR(getaddrinfo_doc,
- "getaddrinfo(host, port [, family, socktype, proto, flags])\n\
- -> list of (family, socktype, proto, canonname, sockaddr)\n\
- \n\
- Resolve host and port into addrinfo struct.");
- /* Python interface to getnameinfo(sa, flags). */
- /*ARGSUSED*/
- static PyObject *
- socket_getnameinfo(PyObject *self, PyObject *args)
- {
- PyObject *sa = (PyObject *)NULL;
- int flags;
- char *hostp;
- int port, flowinfo, scope_id;
- char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV];
- struct addrinfo hints, *res = NULL;
- int error;
- PyObject *ret = (PyObject *)NULL;
- flags = flowinfo = scope_id = 0;
- if (!PyArg_ParseTuple(args, "Oi:getnameinfo", &sa, &flags))
- return NULL;
- if (!PyArg_ParseTuple(sa, "si|ii",
- &hostp, &port, &flowinfo, &scope_id))
- return NULL;
- PyOS_snprintf(pbuf, sizeof(pbuf), "%d", port);
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_DGRAM; /* make numeric port happy */
- Py_BEGIN_ALLOW_THREADS
- ACQUIRE_GETADDRINFO_LOCK
- error = getaddrinfo(hostp, pbuf, &hints, &res);
- Py_END_ALLOW_THREADS
- RELEASE_GETADDRINFO_LOCK /* see comment in setipaddr() */
- if (error) {
- set_gaierror(error);
- goto fail;
- }
- if (res->ai_next) {
- PyErr_SetString(socket_error,
- "sockaddr resolved to multiple addresses");
- goto fail;
- }
- switch (res->ai_family) {
- case AF_INET:
- {
- char *t1;
- int t2;
- if (PyArg_ParseTuple(sa, "si", &t1, &t2) == 0) {
- PyErr_SetString(socket_error,
- "IPv4 sockaddr must be 2 tuple");
- goto fail;
- }
- break;
- }
- #ifdef ENABLE_IPV6
- case AF_INET6:
- {
- struct sockaddr_in6 *sin6;
- sin6 = (struct sockaddr_in6 *)res->ai_addr;
- sin6->sin6_flowinfo = flowinfo;
- sin6->sin6_scope_id = scope_id;
- break;
- }
- #endif
- }
- error = getnameinfo(res->ai_addr, res->ai_addrlen,
- hbuf, sizeof(hbuf), pbuf, sizeof(pbuf), flags);
- if (error) {
- set_gaierror(error);
- goto fail;
- }
- ret = Py_BuildValue("ss", hbuf, pbuf);
- fail:
- if (res)
- freeaddrinfo(res);
- return ret;
- }
- PyDoc_STRVAR(getnameinfo_doc,
- "getnameinfo(sockaddr, flags) --> (host, port)\n\
- \n\
- Get host and port for a sockaddr.");
- /* Python API to getting and setting the default timeout value. */
- static PyObject *
- socket_getdefaulttimeout(PyObject *self)
- {
- if (defaulttimeout < 0.0) {
- Py_INCREF(Py_None);
- return Py_None;
- }
- else
- return PyFloat_FromDouble(defaulttimeout);
- }
- PyDoc_STRVAR(getdefaulttimeout_doc,
- "getdefaulttimeout() -> timeout\n\
- \n\
- Returns the default timeout in floating seconds for new socket objects.\n\
- A value of None indicates that new socket objects have no timeout.\n\
- When the socket module is first imported, the default is None.");
- static PyObject *
- socket_setdefaulttimeout(PyObject *self, PyObject *arg)
- {
- double timeout;
- if (arg == Py_None)
- timeout = -1.0;
- else {
- timeout = PyFloat_AsDouble(arg);
- if (timeout < 0.0) {
- if (!PyErr_Occurred())
- PyErr_SetString(PyExc_ValueError,
- "Timeout value out of range");
- return NULL;
- }
- }
- defaulttimeout = timeout;
- Py_INCREF(Py_None);
- return Py_None;
- }
- PyDoc_STRVAR(setdefaulttimeout_doc,
- "setdefaulttimeout(timeout)\n\
- \n\
- Set the default timeout in floating seconds for new socket objects.\n\
- A value of None indicates that new socket objects have no timeout.\n\
- When the socket module is first imported, the default is None.");
- /* List of functions exported by this module. */
- static PyMethodDef socket_methods[] = {
- {"gethostbyname", socket_gethostbyname,
- METH_VARARGS, gethostbyname_doc},
- {"gethostbyname_ex", socket_gethostbyname_ex,
- METH_VARARGS, ghbn_ex_doc},
- {"gethostbyaddr", socket_gethostbyaddr,
- METH_VARARGS, gethostbyaddr_doc},
- {"gethostname", socket_gethostname,
- METH_NOARGS, gethostname_doc},
- {"getservbyname", socket_getservbyname,
- METH_VARARGS, getservbyname_doc},
- {"getservbyport", socket_getservbyport,
- METH_VARARGS, getservbyport_doc},
- {"getprotobyname", socket_getprotobyname,
- METH_VARARGS, getprotobyname_doc},
- #ifndef NO_DUP
- {"fromfd", socket_fromfd,
- METH_VARARGS, fromfd_doc},
- #endif
- #ifdef HAVE_SOCKETPAIR
- {"socketpair", socket_socketpair,
- METH_VARARGS, socketpair_doc},
- #endif
- {"ntohs", socket_ntohs,
- METH_VARARGS, ntohs_doc},
- {"ntohl", socket_ntohl,
- METH_O, ntohl_doc},
- {"htons", socket_htons,
- METH_VARARGS, htons_doc},
- {"htonl", socket_htonl,
- METH_O, htonl_doc},
- {"inet_aton", socket_inet_aton,
- METH_VARARGS, inet_aton_doc},
- {"inet_ntoa", socket_inet_ntoa,
- METH_VARARGS, inet_ntoa_doc},
- #ifdef HAVE_INET_PTON
- {"inet_pton", socket_inet_pton,
- METH_VARARGS, inet_pton_doc},
- {"inet_ntop", socket_inet_ntop,
- METH_VARARGS, inet_ntop_doc},
- #endif
- {"getaddrinfo", socket_getaddrinfo,
- METH_VARARGS, getaddrinfo_doc},
- {"getnameinfo", socket_getnameinfo,
- METH_VARARGS, getnameinfo_doc},
- {"getdefaulttimeout", (PyCFunction)socket_getdefaulttimeout,
- METH_NOARGS, getdefaulttimeout_doc},
- {"setdefaulttimeout", socket_setdefaulttimeout,
- METH_O, setdefaulttimeout_doc},
- {NULL, NULL} /* Sentinel */
- };
- #ifdef RISCOS
- #define OS_INIT_DEFINED
- static int
- os_init(void)
- {
- _kernel_swi_regs r;
- r.r[0] = 0;
- _kernel_swi(0x43380, &r, &r);
- taskwindow = r.r[0];
- return 1;
- }
- #endif /* RISCOS */
- #ifdef MS_WINDOWS
- #define OS_INIT_DEFINED
- /* Additional initialization and cleanup for Windows */
- static void
- os_cleanup(void)
- {
- WSACleanup();
- }
- static int
- os_init(void)
- {
- WSADATA WSAData;
- int ret;
- char buf[100];
- ret = WSAStartup(0x0101, &WSAData);
- switch (ret) {
- case 0: /* No error */
- Py_AtExit(os_cleanup);
- return 1; /* Success */
- 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:
- PyOS_snprintf(buf, sizeof(buf),
- "WSAStartup failed: error code %d", ret);
- PyErr_SetString(PyExc_ImportError, buf);
- break;
- }
- return 0; /* Failure */
- }
- #endif /* MS_WINDOWS */
- #ifdef PYOS_OS2
- #define OS_INIT_DEFINED
- /* Additional initialization for OS/2 */
- static int
- os_init(void)
- {
- #ifndef PYCC_GCC
- char reason[64];
- int rc = sock_init();
- if (rc == 0) {
- return 1; /* Success */
- }
- PyOS_snprintf(reason, sizeof(reason),
- "OS/2 TCP/IP Error# %d", sock_errno());
- PyErr_SetString(PyExc_ImportError, reason);
- return 0; /* Failure */
- #else
- /* No need to initialise sockets with GCC/EMX */
- return 1; /* Success */
- #endif
- }
- #endif /* PYOS_OS2 */
- #ifndef OS_INIT_DEFINED
- static int
- os_init(void)
- {
- return 1; /* Success */
- }
- #endif
- /* C API table - always add new things to the end for binary
- compatibility. */
- static
- PySocketModule_APIObject PySocketModuleAPI =
- {
- &sock_type,
- NULL
- };
- /* Initialize the _socket module.
- This module is actually called "_socket", and there's a wrapper
- "socket.py" which implements some additional functionality. On some
- platforms (e.g. Windows and OS/2), socket.py also implements a
- wrapper for the socket type that provides missing functionality such
- as makefile(), dup() and fromfd(). The import of "_socket" may fail
- with an ImportError exception if os-specific initialization fails.
- On Windows, this does WINSOCK initialization. When WINSOCK is
- initialized succesfully, a call to WSACleanup() is scheduled to be
- made at exit time.
- */
- PyDoc_STRVAR(socket_doc,
- "Implementation module for socket operations.\n\
- \n\
- See the socket module for documentation.");
- PyMODINIT_FUNC
- init_socket(void)
- {
- PyObject *m, *has_ipv6;
- if (!os_init())
- return;
- sock_type.ob_type = &PyType_Type;
- m = Py_InitModule3(PySocket_MODULE_NAME,
- socket_methods,
- socket_doc);
- if (m == NULL)
- return;
- socket_error = PyErr_NewException("socket.error", NULL, NULL);
- if (socket_error == NULL)
- return;
- PySocketModuleAPI.error = socket_error;
- Py_INCREF(socket_error);
- PyModule_AddObject(m, "error", socket_error);
- socket_herror = PyErr_NewException("socket.herror",
- socket_error, NULL);
- if (socket_herror == NULL)
- return;
- Py_INCREF(socket_herror);
- PyModule_AddObject(m, "herror", socket_herror);
- socket_gaierror = PyErr_NewException("socket.gaierror", socket_error,
- NULL);
- if (socket_gaierror == NULL)
- return;
- Py_INCREF(socket_gaierror);
- PyModule_AddObject(m, "gaierror", socket_gaierror);
- socket_timeout = PyErr_NewException("socket.timeout",
- socket_error, NULL);
- if (socket_timeout == NULL)
- return;
- Py_INCREF(socket_timeout);
- PyModule_AddObject(m, "timeout", socket_timeout);
- Py_INCREF((PyObject *)&sock_type);
- if (PyModule_AddObject(m, "SocketType",
- (PyObject *)&sock_type) != 0)
- return;
- Py_INCREF((PyObject *)&sock_type);
- if (PyModule_AddObject(m, "socket",
- (PyObject *)&sock_type) != 0)
- return;
- #ifdef ENABLE_IPV6
- has_ipv6 = Py_True;
- #else
- has_ipv6 = Py_False;
- #endif
- Py_INCREF(has_ipv6);
- PyModule_AddObject(m, "has_ipv6", has_ipv6);
- /* Export C API */
- if (PyModule_AddObject(m, PySocket_CAPI_NAME,
- PyCObject_FromVoidPtr((void *)&PySocketModuleAPI, NULL)
- ) != 0)
- return;
- /* Address families (we only support AF_INET and AF_UNIX) */
- #ifdef AF_UNSPEC
- PyModule_AddIntConstant(m, "AF_UNSPEC", AF_UNSPEC);
- #endif
- PyModule_AddIntConstant(m, "AF_INET", AF_INET);
- #ifdef AF_INET6
- PyModule_AddIntConstant(m, "AF_INET6", AF_INET6);
- #endif /* AF_INET6 */
- #if defined(AF_UNIX)
- PyModule_AddIntConstant(m, "AF_UNIX", AF_UNIX);
- #endif /* AF_UNIX */
- #ifdef AF_AX25
- /* Amateur Radio AX.25 */
- PyModule_AddIntConstant(m, "AF_AX25", AF_AX25);
- #endif
- #ifdef AF_IPX
- PyModule_AddIntConstant(m, "AF_IPX", AF_IPX); /* Novell IPX */
- #endif
- #ifdef AF_APPLETALK
- /* Appletalk DDP */
- PyModule_AddIntConstant(m, "AF_APPLETALK", AF_APPLETALK);
- #endif
- #ifdef AF_NETROM
- /* Amateur radio NetROM */
- PyModule_AddIntConstant(m, "AF_NETROM", AF_NETROM);
- #endif
- #ifdef AF_BRIDGE
- /* Multiprotocol bridge */
- PyModule_AddIntConstant(m, "AF_BRIDGE", AF_BRIDGE);
- #endif
- #ifdef AF_ATMPVC
- /* ATM PVCs */
- PyModule_AddIntConstant(m, "AF_ATMPVC", AF_ATMPVC);
- #endif
- #ifdef AF_AAL5
- /* Reserved for Werner's ATM */
- PyModule_AddIntConstant(m, "AF_AAL5", AF_AAL5);
- #endif
- #ifdef AF_X25
- /* Reserved for X.25 project */
- PyModule_AddIntConstant(m, "AF_X25", AF_X25);
- #endif
- #ifdef AF_INET6
- PyModule_AddIntConstant(m, "AF_INET6", AF_INET6); /* IP version 6 */
- #endif
- #ifdef AF_ROSE
- /* Amateur Radio X.25 PLP */
- PyModule_AddIntConstant(m, "AF_ROSE", AF_ROSE);
- #endif
- #ifdef AF_DECnet
- /* Reserved for DECnet project */
- PyModule_AddIntConstant(m, "AF_DECnet", AF_DECnet);
- #endif
- #ifdef AF_NETBEUI
- /* Reserved for 802.2LLC project */
- PyModule_AddIntConstant(m, "AF_NETBEUI", AF_NETBEUI);
- #endif
- #ifdef AF_SECURITY
- /* Security callback pseudo AF */
- PyModule_AddIntConstant(m, "AF_SECURITY", AF_SECURITY);
- #endif
- #ifdef AF_KEY
- /* PF_KEY key management API */
- PyModule_AddIntConstant(m, "AF_KEY", AF_KEY);
- #endif
- #ifdef AF_NETLINK
- /* */
- PyModule_AddIntConstant(m, "AF_NETLINK", AF_NETLINK);
- PyModule_AddIntConstant(m, "NETLINK_ROUTE", NETLINK_ROUTE);
- #ifdef NETLINK_SKIP
- PyModule_AddIntConstant(m, "NETLINK_SKIP", NETLINK_SKIP);
- #endif
- #ifdef NETLINK_W1
- PyModule_AddIntConstant(m, "NETLINK_W1", NETLINK_W1);
- #endif
- PyModule_AddIntConstant(m, "NETLINK_USERSOCK", NETLINK_USERSOCK);
- PyModule_AddIntConstant(m, "NETLINK_FIREWALL", NETLINK_FIREWALL);
- #ifdef NETLINK_TCPDIAG
- PyModule_AddIntConstant(m, "NETLINK_TCPDIAG", NETLINK_TCPDIAG);
- #endif
- #ifdef NETLINK_NFLOG
- PyModule_AddIntConstant(m, "NETLINK_NFLOG", NETLINK_NFLOG);
- #endif
- #ifdef NETLINK_XFRM
- PyModule_AddIntConstant(m, "NETLINK_XFRM", NETLINK_XFRM);
- #endif
- #ifdef NETLINK_ARPD
- PyModule_AddIntConstant(m, "NETLINK_ARPD", NETLINK_ARPD);
- #endif
- #ifdef NETLINK_ROUTE6
- PyModule_AddIntConstant(m, "NETLINK_ROUTE6", NETLINK_ROUTE6);
- #endif
- PyModule_AddIntConstant(m, "NETLINK_IP6_FW", NETLINK_IP6_FW);
- #ifdef NETLINK_DNRTMSG
- PyModule_AddIntConstant(m, "NETLINK_DNRTMSG", NETLINK_DNRTMSG);
- #endif
- #ifdef NETLINK_TAPBASE
- PyModule_AddIntConstant(m, "NETLINK_TAPBASE", NETLINK_TAPBASE);
- #endif
- #endif /* AF_NETLINK */
- #ifdef AF_ROUTE
- /* Alias to emulate 4.4BSD */
- PyModule_AddIntConstant(m, "AF_ROUTE", AF_ROUTE);
- #endif
- #ifdef AF_ASH
- /* Ash */
- PyModule_AddIntConstant(m, "AF_ASH", AF_ASH);
- #endif
- #ifdef AF_ECONET
- /* Acorn Econet */
- PyModule_AddIntConstant(m, "AF_ECONET", AF_ECONET);
- #endif
- #ifdef AF_ATMSVC
- /* ATM SVCs */
- PyModule_AddIntConstant(m, "AF_ATMSVC", AF_ATMSVC);
- #endif
- #ifdef AF_SNA
- /* Linux SNA Project (nutters!) */
- PyModule_AddIntConstant(m, "AF_SNA", AF_SNA);
- #endif
- #ifdef AF_IRDA
- /* IRDA sockets */
- PyModule_AddIntConstant(m, "AF_IRDA", AF_IRDA);
- #endif
- #ifdef AF_PPPOX
- /* PPPoX sockets */
- PyModule_AddIntConstant(m, "AF_PPPOX", AF_PPPOX);
- #endif
- #ifdef AF_WANPIPE
- /* Wanpipe API Sockets */
- PyModule_AddIntConstant(m, "AF_WANPIPE", AF_WANPIPE);
- #endif
- #ifdef AF_LLC
- /* Linux LLC */
- PyModule_AddIntConstant(m, "AF_LLC", AF_LLC);
- #endif
- #ifdef USE_BLUETOOTH
- PyModule_AddIntConstant(m, "AF_BLUETOOTH", AF_BLUETOOTH);
- PyModule_AddIntConstant(m, "BTPROTO_L2CAP", BTPROTO_L2CAP);
- #if !defined(__FreeBSD__)
- PyModule_AddIntConstant(m, "BTPROTO_SCO", BTPROTO_SCO);
- #endif
- PyModule_AddIntConstant(m, "BTPROTO_RFCOMM", BTPROTO_RFCOMM);
- PyModule_AddStringConstant(m, "BDADDR_ANY", "00:00:00:00:00:00");
- PyModule_AddStringConstant(m, "BDADDR_LOCAL", "00:00:00:FF:FF:FF");
- #endif
- #ifdef HAVE_NETPACKET_PACKET_H
- PyModule_AddIntConstant(m, "AF_PACKET", AF_PACKET);
- PyModule_AddIntConstant(m, "PF_PACKET", PF_PACKET);
- PyModule_AddIntConstant(m, "PACKET_HOST", PACKET_HOST);
- PyModule_AddIntConstant(m, "PACKET_BROADCAST", PACKET_BROADCAST);
- PyModule_AddIntConstant(m, "PACKET_MULTICAST", PACKET_MULTICAST);
- PyModule_AddIntConstant(m, "PACKET_OTHERHOST", PACKET_OTHERHOST);
- PyModule_AddIntConstant(m, "PACKET_OUTGOING", PACKET_OUTGOING);
- PyModule_AddIntConstant(m, "PACKET_LOOPBACK", PACKET_LOOPBACK);
- PyModule_AddIntConstant(m, "PACKET_FASTROUTE", PACKET_FASTROUTE);
- #endif
- /* Socket types */
- PyModule_AddIntConstant(m, "SOCK_STREAM", SOCK_STREAM);
- PyModule_AddIntConstant(m, "SOCK_DGRAM", SOCK_DGRAM);
- #ifndef __BEOS__
- /* We have incomplete socket support. */
- PyModule_AddIntConstant(m, "SOCK_RAW", SOCK_RAW);
- PyModule_AddIntConstant(m, "SOCK_SEQPACKET", SOCK_SEQPACKET);
- #if defined(SOCK_RDM)
- PyModule_AddIntConstant(m, "SOCK_RDM", SOCK_RDM);
- #endif
- #endif
- #ifdef SO_DEBUG
- PyModule_AddIntConstant(m, "SO_DEBUG", SO_DEBUG);
- #endif
- #ifdef SO_ACCEPTCONN
- PyModule_AddIntConstant(m, "SO_ACCEPTCONN", SO_ACCEPTCONN);
- #endif
- #ifdef SO_REUSEADDR
- PyModule_AddIntConstant(m, "SO_REUSEADDR", SO_REUSEADDR);
- #endif
- #ifdef SO_EXCLUSIVEADDRUSE
- PyModule_AddIntConstant(m, "SO_EXCLUSIVEADDRUSE", SO_EXCLUSIVEADDRUSE);
- #endif
- #ifdef SO_KEEPALIVE
- PyModule_AddIntConstant(m, "SO_KEEPALIVE", SO_KEEPALIVE);
- #endif
- #ifdef SO_DONTROUTE
- PyModule_AddIntConstant(m, "SO_DONTROUTE", SO_DONTROUTE);
- #endif
- #ifdef SO_BROADCAST
- PyModule_AddIntConstant(m, "SO_BROADCAST", SO_BROADCAST);
- #endif
- #ifdef SO_USELOOPBACK
- PyModule_AddIntConstant(m, "SO_USELOOPBACK", SO_USELOOPBACK);
- #endif
- #ifdef SO_LINGER
- PyModule_AddIntConstant(m, "SO_LINGER", SO_LINGER);
- #endif
- #ifdef SO_OOBINLINE
- PyModule_AddIntConstant(m, "SO_OOBINLINE", SO_OOBINLINE);
- #endif
- #ifdef SO_REUSEPORT
- PyModule_AddIntConstant(m, "SO_REUSEPORT", SO_REUSEPORT);
- #endif
- #ifdef SO_SNDBUF
- PyModule_AddIntConstant(m, "SO_SNDBUF", SO_SNDBUF);
- #endif
- #ifdef SO_RCVBUF
- PyModule_AddIntConstant(m, "SO_RCVBUF", SO_RCVBUF);
- #endif
- #ifdef SO_SNDLOWAT
- PyModule_AddIntConstant(m, "SO_SNDLOWAT", SO_SNDLOWAT);
- #endif
- #ifdef SO_RCVLOWAT
- PyModule_AddIntConstant(m, "SO_RCVLOWAT", SO_RCVLOWAT);
- #endif
- #ifdef SO_SNDTIMEO
- PyModule_AddIntConstant(m, "SO_SNDTIMEO", SO_SNDTIMEO);
- #endif
- #ifdef SO_RCVTIMEO
- PyModule_AddIntConstant(m, "SO_RCVTIMEO", SO_RCVTIMEO);
- #endif
- #ifdef SO_ERROR
- PyModule_AddIntConstant(m, "SO_ERROR", SO_ERROR);
- #endif
- #ifdef SO_TYPE
- PyModule_AddIntConstant(m, "SO_TYPE", SO_TYPE);
- #endif
- /* Maximum number of connections for "listen" */
- #ifdef SOMAXCONN
- PyModule_AddIntConstant(m, "SOMAXCONN", SOMAXCONN);
- #else
- PyModule_AddIntConstant(m, "SOMAXCONN", 5); /* Common value */
- #endif
- /* Flags for send, recv */
- #ifdef MSG_OOB
- PyModule_AddIntConstant(m, "MSG_OOB", MSG_OOB);
- #endif
- #ifdef MSG_PEEK
- PyModule_AddIntConstant(m, "MSG_PEEK", MSG_PEEK);
- #endif
- #ifdef MSG_DONTROUTE
- PyModule_AddIntConstant(m, "MSG_DONTROUTE", MSG_DONTROUTE);
- #endif
- #ifdef MSG_DONTWAIT
- PyModule_AddIntConstant(m, "MSG_DONTWAIT", MSG_DONTWAIT);
- #endif
- #ifdef MSG_EOR
- PyModule_AddIntConstant(m, "MSG_EOR", MSG_EOR);
- #endif
- #ifdef MSG_TRUNC
- PyModule_AddIntConstant(m, "MSG_TRUNC", MSG_TRUNC);
- #endif
- #ifdef MSG_CTRUNC
- PyModule_AddIntConstant(m, "MSG_CTRUNC", MSG_CTRUNC);
- #endif
- #ifdef MSG_WAITALL
- PyModule_AddIntConstant(m, "MSG_WAITALL", MSG_WAITALL);
- #endif
- #ifdef MSG_BTAG
- PyModule_AddIntConstant(m, "MSG_BTAG", MSG_BTAG);
- #endif
- #ifdef MSG_ETAG
- PyModule_AddIntConstant(m, "MSG_ETAG", MSG_ETAG);
- #endif
- /* Protocol level and numbers, usable for [gs]etsockopt */
- #ifdef SOL_SOCKET
- PyModule_AddIntConstant(m, "SOL_SOCKET", SOL_SOCKET);
- #endif
- #ifdef SOL_IP
- PyModule_AddIntConstant(m, "SOL_IP", SOL_IP);
- #else
- PyModule_AddIntConstant(m, "SOL_IP", 0);
- #endif
- #ifdef SOL_IPX
- PyModule_AddIntConstant(m, "SOL_IPX", SOL_IPX);
- #endif
- #ifdef SOL_AX25
- PyModule_AddIntConstant(m, "SOL_AX25", SOL_AX25);
- #endif
- #ifdef SOL_ATALK
- PyModule_AddIntConstant(m, "SOL_ATALK", SOL_ATALK);
- #endif
- #ifdef SOL_NETROM
- PyModule_AddIntConstant(m, "SOL_NETROM", SOL_NETROM);
- #endif
- #ifdef SOL_ROSE
- PyModule_AddIntConstant(m, "SOL_ROSE", SOL_ROSE);
- #endif
- #ifdef SOL_TCP
- PyModule_AddIntConstant(m, "SOL_TCP", SOL_TCP);
- #else
- PyModule_AddIntConstant(m, "SOL_TCP", 6);
- #endif
- #ifdef SOL_UDP
- PyModule_AddIntConstant(m, "SOL_UDP", SOL_UDP);
- #else
- PyModule_AddIntConstant(m, "SOL_UDP", 17);
- #endif
- #ifdef IPPROTO_IP
- PyModule_AddIntConstant(m, "IPPROTO_IP", IPPROTO_IP);
- #else
- PyModule_AddIntConstant(m, "IPPROTO_IP", 0);
- #endif
- #ifdef IPPROTO_HOPOPTS
- PyModule_AddIntConstant(m, "IPPROTO_HOPOPTS", IPPROTO_HOPOPTS);
- #endif
- #ifdef IPPROTO_ICMP
- PyModule_AddIntConstant(m, "IPPROTO_ICMP", IPPROTO_ICMP);
- #else
- PyModule_AddIntConstant(m, "IPPROTO_ICMP", 1);
- #endif
- #ifdef IPPROTO_IGMP
- PyModule_AddIntConstant(m, "IPPROTO_IGMP", IPPROTO_IGMP);
- #endif
- #ifdef IPPROTO_GGP
- PyModule_AddIntConstant(m, "IPPROTO_GGP", IPPROTO_GGP);
- #endif
- #ifdef IPPROTO_IPV4
- PyModule_AddIntConstant(m, "IPPROTO_IPV4", IPPROTO_IPV4);
- #endif
- #ifdef IPPROTO_IPV6
- PyModule_AddIntConstant(m, "IPPROTO_IPV6", IPPROTO_IPV6);
- #endif
- #ifdef IPPROTO_IPIP
- PyModule_AddIntConstant(m, "IPPROTO_IPIP", IPPROTO_IPIP);
- #endif
- #ifdef IPPROTO_TCP
- PyModule_AddIntConstant(m, "IPPROTO_TCP", IPPROTO_TCP);
- #else
- PyModule_AddIntConstant(m, "IPPROTO_TCP", 6);
- #endif
- #ifdef IPPROTO_EGP
- PyModule_AddIntConstant(m, "IPPROTO_EGP", IPPROTO_EGP);
- #endif
- #ifdef IPPROTO_PUP
- PyModule_AddIntConstant(m, "IPPROTO_PUP", IPPROTO_PUP);
- #endif
- #ifdef IPPROTO_UDP
- PyModule_AddIntConstant(m, "IPPROTO_UDP", IPPROTO_UDP);
- #else
- PyModule_AddIntConstant(m, "IPPROTO_UDP", 17);
- #endif
- #ifdef IPPROTO_IDP
- PyModule_AddIntConstant(m, "IPPROTO_IDP", IPPROTO_IDP);
- #endif
- #ifdef IPPROTO_HELLO
- PyModule_AddIntConstant(m, "IPPROTO_HELLO", IPPROTO_HELLO);
- #endif
- #ifdef IPPROTO_ND
- PyModule_AddIntConstant(m, "IPPROTO_ND", IPPROTO_ND);
- #endif
- #ifdef IPPROTO_TP
- PyModule_AddIntConstant(m, "IPPROTO_TP", IPPROTO_TP);
- #endif
- #ifdef IPPROTO_IPV6
- PyModule_AddIntConstant(m, "IPPROTO_IPV6", IPPROTO_IPV6);
- #endif
- #ifdef IPPROTO_ROUTING
- PyModule_AddIntConstant(m, "IPPROTO_ROUTING", IPPROTO_ROUTING);
- #endif
- #ifdef IPPROTO_FRAGMENT
- PyModule_AddIntConstant(m, "IPPROTO_FRAGMENT", IPPROTO_FRAGMENT);
- #endif
- #ifdef IPPROTO_RSVP
- PyModule_AddIntConstant(m, "IPPROTO_RSVP", IPPROTO_RSVP);
- #endif
- #ifdef IPPROTO_GRE
- PyModule_AddIntConstant(m, "IPPROTO_GRE", IPPROTO_GRE);
- #endif
- #ifdef IPPROTO_ESP
- PyModule_AddIntConstant(m, "IPPROTO_ESP", IPPROTO_ESP);
- #endif
- #ifdef IPPROTO_AH
- PyModule_AddIntConstant(m, "IPPROTO_AH", IPPROTO_AH);
- #endif
- #ifdef IPPROTO_MOBILE
- PyModule_AddIntConstant(m, "IPPROTO_MOBILE", IPPROTO_MOBILE);
- #endif
- #ifdef IPPROTO_ICMPV6
- PyModule_AddIntConstant(m, "IPPROTO_ICMPV6", IPPROTO_ICMPV6);
- #endif
- #ifdef IPPROTO_NONE
- PyModule_AddIntConstant(m, "IPPROTO_NONE", IPPROTO_NONE);
- #endif
- #ifdef IPPROTO_DSTOPTS
- PyModule_AddIntConstant(m, "IPPROTO_DSTOPTS", IPPROTO_DSTOPTS);
- #endif
- #ifdef IPPROTO_XTP
- PyModule_AddIntConstant(m, "IPPROTO_XTP", IPPROTO_XTP);
- #endif
- #ifdef IPPROTO_EON
- PyModule_AddIntConstant(m, "IPPROTO_EON", IPPROTO_EON);
- #endif
- #ifdef IPPROTO_PIM
- PyModule_AddIntConstant(m, "IPPROTO_PIM", IPPROTO_PIM);
- #endif
- #ifdef IPPROTO_IPCOMP
- PyModule_AddIntConstant(m, "IPPROTO_IPCOMP", IPPROTO_IPCOMP);
- #endif
- #ifdef IPPROTO_VRRP
- PyModule_AddIntConstant(m, "IPPROTO_VRRP", IPPROTO_VRRP);
- #endif
- #ifdef IPPROTO_BIP
- PyModule_AddIntConstant(m, "IPPROTO_BIP", IPPROTO_BIP);
- #endif
- /**/
- #ifdef IPPROTO_RAW
- PyModule_AddIntConstant(m, "IPPROTO_RAW", IPPROTO_RAW);
- #else
- PyModule_AddIntConstant(m, "IPPROTO_RAW", 255);
- #endif
- #ifdef IPPROTO_MAX
- PyModule_AddIntConstant(m, "IPPROTO_MAX", IPPROTO_MAX);
- #endif
- /* Some port configuration */
- #ifdef IPPORT_RESERVED
- PyModule_AddIntConstant(m, "IPPORT_RESERVED", IPPORT_RESERVED);
- #else
- PyModule_AddIntConstant(m, "IPPORT_RESERVED", 1024);
- #endif
- #ifdef IPPORT_USERRESERVED
- PyModule_AddIntConstant(m, "IPPORT_USERRESERVED", IPPORT_USERRESERVED);
- #else
- PyModule_AddIntConstant(m, "IPPORT_USERRESERVED", 5000);
- #endif
- /* Some reserved IP v.4 addresses */
- #ifdef INADDR_ANY
- PyModule_AddIntConstant(m, "INADDR_ANY", INADDR_ANY);
- #else
- PyModule_AddIntConstant(m, "INADDR_ANY", 0x00000000);
- #endif
- #ifdef INADDR_BROADCAST
- PyModule_AddIntConstant(m, "INADDR_BROADCAST", INADDR_BROADCAST);
- #else
- PyModule_AddIntConstant(m, "INADDR_BROADCAST", 0xffffffff);
- #endif
- #ifdef INADDR_LOOPBACK
- PyModule_AddIntConstant(m, "INADDR_LOOPBACK", INADDR_LOOPBACK);
- #else
- PyModule_AddIntConstant(m, "INADDR_LOOPBACK", 0x7F000001);
- #endif
- #ifdef INADDR_UNSPEC_GROUP
- PyModule_AddIntConstant(m, "INADDR_UNSPEC_GROUP", INADDR_UNSPEC_GROUP);
- #else
- PyModule_AddIntConstant(m, "INADDR_UNSPEC_GROUP", 0xe0000000);
- #endif
- #ifdef INADDR_ALLHOSTS_GROUP
- PyModule_AddIntConstant(m, "INADDR_ALLHOSTS_GROUP",
- INADDR_ALLHOSTS_GROUP);
- #else
- PyModule_AddIntConstant(m, "INADDR_ALLHOSTS_GROUP", 0xe0000001);
- #endif
- #ifdef INADDR_MAX_LOCAL_GROUP
- PyModule_AddIntConstant(m, "INADDR_MAX_LOCAL_GROUP",
- INADDR_MAX_LOCAL_GROUP);
- #else
- PyModule_AddIntConstant(m, "INADDR_MAX_LOCAL_GROUP", 0xe00000ff);
- #endif
- #ifdef INADDR_NONE
- PyModule_AddIntConstant(m, "INADDR_NONE", INADDR_NONE);
- #else
- PyModule_AddIntConstant(m, "INADDR_NONE", 0xffffffff);
- #endif
- /* IPv4 [gs]etsockopt options */
- #ifdef IP_OPTIONS
- PyModule_AddIntConstant(m, "IP_OPTIONS", IP_OPTIONS);
- #endif
- #ifdef IP_HDRINCL
- PyModule_AddIntConstant(m, "IP_HDRINCL", IP_HDRINCL);
- #endif
- #ifdef IP_TOS
- PyModule_AddIntConstant(m, "IP_TOS", IP_TOS);
- #endif
- #ifdef IP_TTL
- PyModule_AddIntConstant(m, "IP_TTL", IP_TTL);
- #endif
- #ifdef IP_RECVOPTS
- PyModule_AddIntConstant(m, "IP_RECVOPTS", IP_RECVOPTS);
- #endif
- #ifdef IP_RECVRETOPTS
- PyModule_AddIntConstant(m, "IP_RECVRETOPTS", IP_RECVRETOPTS);
- #endif
- #ifdef IP_RECVDSTADDR
- PyModule_AddIntConstant(m, "IP_RECVDSTADDR", IP_RECVDSTADDR);
- #endif
- #ifdef IP_RETOPTS
- PyModule_AddIntConstant(m, "IP_RETOPTS", IP_RETOPTS);
- #endif
- #ifdef IP_MULTICAST_IF
- PyModule_AddIntConstant(m, "IP_MULTICAST_IF", IP_MULTICAST_IF);
- #endif
- #ifdef IP_MULTICAST_TTL
- PyModule_AddIntConstant(m, "IP_MULTICAST_TTL", IP_MULTICAST_TTL);
- #endif
- #ifdef IP_MULTICAST_LOOP
- PyModule_AddIntConstant(m, "IP_MULTICAST_LOOP", IP_MULTICAST_LOOP);
- #endif
- #ifdef IP_ADD_MEMBERSHIP
- PyModule_AddIntConstant(m, "IP_ADD_MEMBERSHIP", IP_ADD_MEMBERSHIP);
- #endif
- #ifdef IP_DROP_MEMBERSHIP
- PyModule_AddIntConstant(m, "IP_DROP_MEMBERSHIP", IP_DROP_MEMBERSHIP);
- #endif
- #ifdef IP_DEFAULT_MULTICAST_TTL
- PyModule_AddIntConstant(m, "IP_DEFAULT_MULTICAST_TTL",
- IP_DEFAULT_MULTICAST_TTL);
- #endif
- #ifdef IP_DEFAULT_MULTICAST_LOOP
- PyModule_AddIntConstant(m, "IP_DEFAULT_MULTICAST_LOOP",
- IP_DEFAULT_MULTICAST_LOOP);
- #endif
- #ifdef IP_MAX_MEMBERSHIPS
- PyModule_AddIntConstant(m, "IP_MAX_MEMBERSHIPS", IP_MAX_MEMBERSHIPS);
- #endif
- /* IPv6 [gs]etsockopt options, defined in RFC2553 */
- #ifdef IPV6_JOIN_GROUP
- PyModule_AddIntConstant(m, "IPV6_JOIN_GROUP", IPV6_JOIN_GROUP);
- #endif
- #ifdef IPV6_LEAVE_GROUP
- PyModule_AddIntConstant(m, "IPV6_LEAVE_GROUP", IPV6_LEAVE_GROUP);
- #endif
- #ifdef IPV6_MULTICAST_HOPS
- PyModule_AddIntConstant(m, "IPV6_MULTICAST_HOPS", IPV6_MULTICAST_HOPS);
- #endif
- #ifdef IPV6_MULTICAST_IF
- PyModule_AddIntConstant(m, "IPV6_MULTICAST_IF", IPV6_MULTICAST_IF);
- #endif
- #ifdef IPV6_MULTICAST_LOOP
- PyModule_AddIntConstant(m, "IPV6_MULTICAST_LOOP", IPV6_MULTICAST_LOOP);
- #endif
- #ifdef IPV6_UNICAST_HOPS
- PyModule_AddIntConstant(m, "IPV6_UNICAST_HOPS", IPV6_UNICAST_HOPS);
- #endif
- /* Additional IPV6 socket options, defined in RFC 3493 */
- #ifdef IPV6_V6ONLY
- PyModule_AddIntConstant(m, "IPV6_V6ONLY", IPV6_V6ONLY);
- #endif
- /* Advanced IPV6 socket options, from RFC 3542 */
- #ifdef IPV6_CHECKSUM
- PyModule_AddIntConstant(m, "IPV6_CHECKSUM", IPV6_CHECKSUM);
- #endif
- #ifdef IPV6_DONTFRAG
- PyModule_AddIntConstant(m, "IPV6_DONTFRAG", IPV6_DONTFRAG);
- #endif
- #ifdef IPV6_DSTOPTS
- PyModule_AddIntConstant(m, "IPV6_DSTOPTS", IPV6_DSTOPTS);
- #endif
- #ifdef IPV6_HOPLIMIT
- PyModule_AddIntConstant(m, "IPV6_HOPLIMIT", IPV6_HOPLIMIT);
- #endif
- #ifdef IPV6_HOPOPTS
- PyModule_AddIntConstant(m, "IPV6_HOPOPTS", IPV6_HOPOPTS);
- #endif
- #ifdef IPV6_NEXTHOP
- PyModule_AddIntConstant(m, "IPV6_NEXTHOP", IPV6_NEXTHOP);
- #endif
- #ifdef IPV6_PATHMTU
- PyModule_AddIntConstant(m, "IPV6_PATHMTU", IPV6_PATHMTU);
- #endif
- #ifdef IPV6_PKTINFO
- PyModule_AddIntConstant(m, "IPV6_PKTINFO", IPV6_PKTINFO);
- #endif
- #ifdef IPV6_RECVDSTOPTS
- PyModule_AddIntConstant(m, "IPV6_RECVDSTOPTS", IPV6_RECVDSTOPTS);
- #endif
- #ifdef IPV6_RECVHOPLIMIT
- PyModule_AddIntConstant(m, "IPV6_RECVHOPLIMIT", IPV6_RECVHOPLIMIT);
- #endif
- #ifdef IPV6_RECVHOPOPTS
- PyModule_AddIntConstant(m, "IPV6_RECVHOPOPTS", IPV6_RECVHOPOPTS);
- #endif
- #ifdef IPV6_RECVPKTINFO
- PyModule_AddIntConstant(m, "IPV6_RECVPKTINFO", IPV6_RECVPKTINFO);
- #endif
- #ifdef IPV6_RECVRTHDR
- PyModule_AddIntConstant(m, "IPV6_RECVRTHDR", IPV6_RECVRTHDR);
- #endif
- #ifdef IPV6_RECVTCLASS
- PyModule_AddIntConstant(m, "IPV6_RECVTCLASS", IPV6_RECVTCLASS);
- #endif
- #ifdef IPV6_RTHDR
- PyModule_AddIntConstant(m, "IPV6_RTHDR", IPV6_RTHDR);
- #endif
- #ifdef IPV6_RTHDRDSTOPTS
- PyModule_AddIntConstant(m, "IPV6_RTHDRDSTOPTS", IPV6_RTHDRDSTOPTS);
- #endif
- #ifdef IPV6_RTHDR_TYPE_0
- PyModule_AddIntConstant(m, "IPV6_RTHDR_TYPE_0", IPV6_RTHDR_TYPE_0);
- #endif
- #ifdef IPV6_RECVPATHMTU
- PyModule_AddIntConstant(m, "IPV6_RECVPATHMTU", IPV6_RECVPATHMTU);
- #endif
- #ifdef IPV6_TCLASS
- PyModule_AddIntConstant(m, "IPV6_TCLASS", IPV6_TCLASS);
- #endif
- #ifdef IPV6_USE_MIN_MTU
- PyModule_AddIntConstant(m, "IPV6_USE_MIN_MTU", IPV6_USE_MIN_MTU);
- #endif
- /* TCP options */
- #ifdef TCP_NODELAY
- PyModule_AddIntConstant(m, "TCP_NODELAY", TCP_NODELAY);
- #endif
- #ifdef TCP_MAXSEG
- PyModule_AddIntConstant(m, "TCP_MAXSEG", TCP_MAXSEG);
- #endif
- #ifdef TCP_CORK
- PyModule_AddIntConstant(m, "TCP_CORK", TCP_CORK);
- #endif
- #ifdef TCP_KEEPIDLE
- PyModule_AddIntConstant(m, "TCP_KEEPIDLE", TCP_KEEPIDLE);
- #endif
- #ifdef TCP_KEEPINTVL
- PyModule_AddIntConstant(m, "TCP_KEEPINTVL", TCP_KEEPINTVL);
- #endif
- #ifdef TCP_KEEPCNT
- PyModule_AddIntConstant(m, "TCP_KEEPCNT", TCP_KEEPCNT);
- #endif
- #ifdef TCP_SYNCNT
- PyModule_AddIntConstant(m, "TCP_SYNCNT", TCP_SYNCNT);
- #endif
- #ifdef TCP_LINGER2
- PyModule_AddIntConstant(m, "TCP_LINGER2", TCP_LINGER2);
- #endif
- #ifdef TCP_DEFER_ACCEPT
- PyModule_AddIntConstant(m, "TCP_DEFER_ACCEPT", TCP_DEFER_ACCEPT);
- #endif
- #ifdef TCP_WINDOW_CLAMP
- PyModule_AddIntConstant(m, "TCP_WINDOW_CLAMP", TCP_WINDOW_CLAMP);
- #endif
- #ifdef TCP_INFO
- PyModule_AddIntConstant(m, "TCP_INFO", TCP_INFO);
- #endif
- #ifdef TCP_QUICKACK
- PyModule_AddIntConstant(m, "TCP_QUICKACK", TCP_QUICKACK);
- #endif
- /* IPX options */
- #ifdef IPX_TYPE
- PyModule_AddIntConstant(m, "IPX_TYPE", IPX_TYPE);
- #endif
- /* get{addr,name}info parameters */
- #ifdef EAI_ADDRFAMILY
- PyModule_AddIntConstant(m, "EAI_ADDRFAMILY", EAI_ADDRFAMILY);
- #endif
- #ifdef EAI_AGAIN
- PyModule_AddIntConstant(m, "EAI_AGAIN", EAI_AGAIN);
- #endif
- #ifdef EAI_BADFLAGS
- PyModule_AddIntConstant(m, "EAI_BADFLAGS", EAI_BADFLAGS);
- #endif
- #ifdef EAI_FAIL
- PyModule_AddIntConstant(m, "EAI_FAIL", EAI_FAIL);
- #endif
- #ifdef EAI_FAMILY
- PyModule_AddIntConstant(m, "EAI_FAMILY", EAI_FAMILY);
- #endif
- #ifdef EAI_MEMORY
- PyModule_AddIntConstant(m, "EAI_MEMORY", EAI_MEMORY);
- #endif
- #ifdef EAI_NODATA
- PyModule_AddIntConstant(m, "EAI_NODATA", EAI_NODATA);
- #endif
- #ifdef EAI_NONAME
- PyModule_AddIntConstant(m, "EAI_NONAME", EAI_NONAME);
- #endif
- #ifdef EAI_OVERFLOW
- PyModule_AddIntConstant(m, "EAI_OVERFLOW", EAI_OVERFLOW);
- #endif
- #ifdef EAI_SERVICE
- PyModule_AddIntConstant(m, "EAI_SERVICE", EAI_SERVICE);
- #endif
- #ifdef EAI_SOCKTYPE
- PyModule_AddIntConstant(m, "EAI_SOCKTYPE", EAI_SOCKTYPE);
- #endif
- #ifdef EAI_SYSTEM
- PyModule_AddIntConstant(m, "EAI_SYSTEM", EAI_SYSTEM);
- #endif
- #ifdef EAI_BADHINTS
- PyModule_AddIntConstant(m, "EAI_BADHINTS", EAI_BADHINTS);
- #endif
- #ifdef EAI_PROTOCOL
- PyModule_AddIntConstant(m, "EAI_PROTOCOL", EAI_PROTOCOL);
- #endif
- #ifdef EAI_MAX
- PyModule_AddIntConstant(m, "EAI_MAX", EAI_MAX);
- #endif
- #ifdef AI_PASSIVE
- PyModule_AddIntConstant(m, "AI_PASSIVE", AI_PASSIVE);
- #endif
- #ifdef AI_CANONNAME
- PyModule_AddIntConstant(m, "AI_CANONNAME", AI_CANONNAME);
- #endif
- #ifdef AI_NUMERICHOST
- PyModule_AddIntConstant(m, "AI_NUMERICHOST", AI_NUMERICHOST);
- #endif
- #ifdef AI_NUMERICSERV
- PyModule_AddIntConstant(m, "AI_NUMERICSERV", AI_NUMERICSERV);
- #endif
- #ifdef AI_MASK
- PyModule_AddIntConstant(m, "AI_MASK", AI_MASK);
- #endif
- #ifdef AI_ALL
- PyModule_AddIntConstant(m, "AI_ALL", AI_ALL);
- #endif
- #ifdef AI_V4MAPPED_CFG
- PyModule_AddIntConstant(m, "AI_V4MAPPED_CFG", AI_V4MAPPED_CFG);
- #endif
- #ifdef AI_ADDRCONFIG
- PyModule_AddIntConstant(m, "AI_ADDRCONFIG", AI_ADDRCONFIG);
- #endif
- #ifdef AI_V4MAPPED
- PyModule_AddIntConstant(m, "AI_V4MAPPED", AI_V4MAPPED);
- #endif
- #ifdef AI_DEFAULT
- PyModule_AddIntConstant(m, "AI_DEFAULT", AI_DEFAULT);
- #endif
- #ifdef NI_MAXHOST
- PyModule_AddIntConstant(m, "NI_MAXHOST", NI_MAXHOST);
- #endif
- #ifdef NI_MAXSERV
- PyModule_AddIntConstant(m, "NI_MAXSERV", NI_MAXSERV);
- #endif
- #ifdef NI_NOFQDN
- PyModule_AddIntConstant(m, "NI_NOFQDN", NI_NOFQDN);
- #endif
- #ifdef NI_NUMERICHOST
- PyModule_AddIntConstant(m, "NI_NUMERICHOST", NI_NUMERICHOST);
- #endif
- #ifdef NI_NAMEREQD
- PyModule_AddIntConstant(m, "NI_NAMEREQD", NI_NAMEREQD);
- #endif
- #ifdef NI_NUMERICSERV
- PyModule_AddIntConstant(m, "NI_NUMERICSERV", NI_NUMERICSERV);
- #endif
- #ifdef NI_DGRAM
- PyModule_AddIntConstant(m, "NI_DGRAM", NI_DGRAM);
- #endif
- /* shutdown() parameters */
- #ifdef SHUT_RD
- PyModule_AddIntConstant(m, "SHUT_RD", SHUT_RD);
- #elif defined(SD_RECEIVE)
- PyModule_AddIntConstant(m, "SHUT_RD", SD_RECEIVE);
- #else
- PyModule_AddIntConstant(m, "SHUT_RD", 0);
- #endif
- #ifdef SHUT_WR
- PyModule_AddIntConstant(m, "SHUT_WR", SHUT_WR);
- #elif defined(SD_SEND)
- PyModule_AddIntConstant(m, "SHUT_WR", SD_SEND);
- #else
- PyModule_AddIntConstant(m, "SHUT_WR", 1);
- #endif
- #ifdef SHUT_RDWR
- PyModule_AddIntConstant(m, "SHUT_RDWR", SHUT_RDWR);
- #elif defined(SD_BOTH)
- PyModule_AddIntConstant(m, "SHUT_RDWR", SD_BOTH);
- #else
- PyModule_AddIntConstant(m, "SHUT_RDWR", 2);
- #endif
- /* Initialize gethostbyname lock */
- #if defined(USE_GETHOSTBYNAME_LOCK) || defined(USE_GETADDRINFO_LOCK)
- netdb_lock = PyThread_allocate_lock();
- #endif
- }
- #ifndef HAVE_INET_PTON
- /* Simplistic emulation code for inet_pton that only works for IPv4 */
- /* These are not exposed because they do not set errno properly */
- int
- inet_pton(int af, const char *src, void *dst)
- {
- if (af == AF_INET) {
- long packed_addr;
- packed_addr = inet_addr(src);
- if (packed_addr == INADDR_NONE)
- return 0;
- memcpy(dst, &packed_addr, 4);
- return 1;
- }
- /* Should set errno to EAFNOSUPPORT */
- return -1;
- }
- const char *
- inet_ntop(int af, const void *src, char *dst, socklen_t size)
- {
- if (af == AF_INET) {
- struct in_addr packed_addr;
- if (size < 16)
- /* Should set errno to ENOSPC. */
- return NULL;
- memcpy(&packed_addr, src, sizeof(packed_addr));
- return strncpy(dst, inet_ntoa(packed_addr), size);
- }
- /* Should set errno to EAFNOSUPPORT */
- return NULL;
- }
- #endif