1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtNetwork module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QNET_UNIX_P_H

    43 #define QNET_UNIX_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists for the convenience

    50 // of Qt code on Unix. This header file may change from version to

    51 // version to version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "private/qcore_unix_p.h"

    57 

    58 #include <sys/types.h>

    59 #include <sys/socket.h>

    60 #include <netinet/in.h>

    61 

    62 #if defined(Q_OS_VXWORKS)

    63 #  include <sockLib.h>

    64 #endif

    65 

    66 // for inet_addr

    67 #include <netdb.h>

    68 #include <arpa/inet.h>

    69 #if defined(Q_OS_VXWORKS)

    70 #  include <hostLib.h>

    71 #else

    72 #  include <resolv.h>

    73 #endif

    74 

    75 QT_BEGIN_NAMESPACE

    76 

    77 // Almost always the same. If not, specify in qplatformdefs.h.

    78 #if !defined(QT_SOCKOPTLEN_T)

    79 # define QT_SOCKOPTLEN_T QT_SOCKLEN_T

    80 #endif

    81 

    82 // UnixWare 7 redefines socket -> _socket

    83 static inline int qt_safe_socket(int domain, int type, int protocol, int flags = 0)

    84 {

    85     Q_ASSERT((flags & ~O_NONBLOCK) == 0);

    86 

    87     register int fd;

    88 #if defined(SOCK_CLOEXEC) && defined(SOCK_NONBLOCK)

    89     int newtype = type | SOCK_CLOEXEC;

    90     if (flags & O_NONBLOCK)

    91         newtype |= SOCK_NONBLOCK;

    92     fd = ::socket(domain, newtype, protocol);

    93     if (fd != -1 || errno != EINVAL)

    94         return fd;

    95 #endif

    96 

    97     fd = ::socket(domain, type, protocol);

    98     if (fd == -1)

    99         return -1;

   100 

   101     ::fcntl(fd, F_SETFD, FD_CLOEXEC);

   102 

   103     // set non-block too?

   104     if (flags & O_NONBLOCK)

   105         ::fcntl(fd, F_SETFL, ::fcntl(fd, F_GETFL) | O_NONBLOCK);

   106 

   107     return fd;

   108 }

   109 

   110 // Tru64 redefines accept -> _accept with _XOPEN_SOURCE_EXTENDED

   111 static inline int qt_safe_accept(int s, struct sockaddr *addr, QT_SOCKLEN_T *addrlen, int flags = 0)

   112 {

   113     Q_ASSERT((flags & ~O_NONBLOCK) == 0);

   114 

   115     register int fd;

   116 #if QT_UNIX_SUPPORTS_THREADSAFE_CLOEXEC && defined(SOCK_CLOEXEC) && defined(SOCK_NONBLOCK)

   117     // use accept4

   118     int sockflags = SOCK_CLOEXEC;

   119     if (flags & O_NONBLOCK)

   120         sockflags |= SOCK_NONBLOCK;

   121     fd = ::accept4(s, addr, static_cast<QT_SOCKLEN_T *>(addrlen), sockflags);

   122     if (fd != -1 || !(errno == ENOSYS || errno == EINVAL))

   123         return fd;

   124 #endif

   125 

   126     fd = ::accept(s, addr, static_cast<QT_SOCKLEN_T *>(addrlen));

   127     if (fd == -1)

   128         return -1;

   129 

   130     ::fcntl(fd, F_SETFD, FD_CLOEXEC);

   131 

   132     // set non-block too?

   133     if (flags & O_NONBLOCK)

   134         ::fcntl(fd, F_SETFL, ::fcntl(fd, F_GETFL) | O_NONBLOCK);

   135 

   136     return fd;

   137 }

   138 

   139 // UnixWare 7 redefines listen -> _listen

   140 static inline int qt_safe_listen(int s, int backlog)

   141 {

   142     return ::listen(s, backlog);

   143 }

   144 

   145 static inline int qt_safe_connect(int sockfd, const struct sockaddr *addr, QT_SOCKLEN_T addrlen)

   146 {

   147     register int ret;

   148     // Solaris e.g. expects a non-const 2nd parameter

   149     EINTR_LOOP(ret, QT_SOCKET_CONNECT(sockfd, const_cast<struct sockaddr *>(addr), addrlen));

   150     return ret;

   151 }

   152 #undef QT_SOCKET_CONNECT

   153 #define QT_SOCKET_CONNECT qt_safe_connect

   154 

   155 #if defined(socket)

   156 # undef socket

   157 #endif

   158 #if defined(accept)

   159 # undef accept

   160 #endif

   161 #if defined(listen)

   162 # undef listen

   163 #endif

   164 

   165 // VxWorks' headers specify 'int' instead of '...' for the 3rd ioctl() parameter.

   166 template <typename T>

   167 static inline int qt_safe_ioctl(int sockfd, int request, T arg)

   168 {

   169 #ifdef Q_OS_VXWORKS

   170     return ::ioctl(sockfd, request, (int) arg);

   171 #else

   172     return ::ioctl(sockfd, request, arg);

   173 #endif

   174 }

   175 

   176 // VxWorks' headers do not specify any const modifiers

   177 static inline in_addr_t qt_safe_inet_addr(const char *cp)

   178 {

   179 #ifdef Q_OS_VXWORKS

   180     return ::inet_addr((char *) cp);

   181 #else

   182     return ::inet_addr(cp);

   183 #endif

   184 }

   185 

   186 // VxWorks' headers do not specify any const modifiers

   187 static inline int qt_safe_sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *to, QT_SOCKLEN_T tolen)

   188 {

   189 #ifdef MSG_NOSIGNAL

   190     flags |= MSG_NOSIGNAL;

   191 #endif

   192 

   193     register int ret;

   194 #ifdef Q_OS_VXWORKS

   195     EINTR_LOOP(ret, ::sendto(sockfd, (char *) buf, len, flags, (struct sockaddr *) to, tolen));

   196 #else

   197     EINTR_LOOP(ret, ::sendto(sockfd, buf, len, flags, to, tolen));

   198 #endif

   199     return ret;

   200 }

   201 

   202 QT_END_NAMESPACE

   203 

   204 #endif // QNET_UNIX_P_H