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Add gnetworking.h

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Install a public "gnetworking.h" header that can be used to include
the relevant OS-dependent networking headers. This does not really
abstract away unix-vs-windows however; error codes, in particular,
are incompatible.

gnetworkingprivate.h now contains just a few internal URI-related
functions

Also add a g_networking_init() function to gnetworking.h, which can be
used to explicitly initialize OS-level networking, rather than having
that happen as a side-effect of registering GInetAddress.

https://bugzilla.gnome.org/show_bug.cgi?id=623187
This commit is contained in:
Dan Winship 2010-11-11 09:57:25 -05:00
parent 9e90575502
commit b377e69685
22 changed files with 220 additions and 120 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
configure.ac
View File

@ -1064,7 +1064,24 @@ if $glib_failed ; then
fi
AC_CHECK_FUNCS(getprotobyname_r endservent if_nametoindex)
AC_CHECK_HEADERS([netdb.h wspiapi.h arpa/nameser_compat.h])
# <wspiapi.h> in the Windows SDK and in mingw-w64 has wrappers for
# inline workarounds for getaddrinfo, getnameinfo and freeaddrinfo if
# they aren't present at run-time (on Windows 2000).
AC_CHECK_HEADER([wspiapi.h], [WSPIAPI_INCLUDE="\#include <wspiapi.h>"])
AC_SUBST(WSPIAPI_INCLUDE)
AC_MSG_CHECKING([if arpa/nameser_compat.h is needed])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <arpa/nameser.h>],
[int qclass = C_IN;])],
[AC_MSG_RESULT([no])],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <arpa/nameser.h>
#include <arpa/nameser_compat.h>],
[int qclass = C_IN;])],
[AC_MSG_RESULT([yes])
NAMESER_COMPAT_INCLUDE="\#include <arpa/nameser_compat.h>"],
[AC_MSG_ERROR([could not compile test program either way])])])
AC_SUBST(NAMESER_COMPAT_INCLUDE)
AS_IF([test $glib_native_win32 = no], [
# We can't just use AC_CHECK_FUNC/AC_CHECK_LIB here. Bug 586150
@ -3618,6 +3635,7 @@ gthread/Makefile
gio/Makefile
gio/gdbus-2.0/codegen/Makefile
gio/gdbus-2.0/codegen/config.py
gio/gnetworking.h
gio/xdgmime/Makefile
gio/inotify/Makefile
gio/kqueue/Makefile

1
docs/reference/gio/gio-docs.xml
View File

@ -122,6 +122,7 @@
<xi:include href="xml/gunixcredentialsmessage.xml"/>
<xi:include href="xml/gproxy.xml"/>
<xi:include href="xml/gproxyaddress.xml"/>
<xi:include href="xml/gnetworking.xml"/>
</chapter>
<chapter id="highlevel-socket">
<title>High-level network functionallity</title>

6
docs/reference/gio/gio-sections.txt
View File

@ -3981,3 +3981,9 @@ G_IS_TASK_CLASS
G_TASK_GET_CLASS
g_task_get_type
</SECTION>
<SECTION>
<FILE>gnetworking</FILE>
<TITLE>gnetworking.h</TITLE>
g_networking_init
</SECTION>

1
gio/.gitignore vendored
View File

@ -10,6 +10,7 @@ gio-querymodules
gioenumtypes.[ch]
glib-compile-resources
glib-compile-schemas
gnetworking.h
gresource
gschema-compile
gsettings

3
gio/Makefile.am
View File

@ -400,6 +400,7 @@ libgio_2_0_la_SOURCES = \
gnativevolumemonitor.c \
gnativevolumemonitor.h \
gnetworkaddress.c \
gnetworking.c \
gnetworkingprivate.h \
gnetworkmonitor.c \
gnetworkmonitorbase.c \
@ -581,6 +582,7 @@ gio_headers = \
gmountoperation.h \
gnativevolumemonitor.h \
gnetworkaddress.h \
gnetworking.h \
gnetworkmonitor.h \
gnetworkservice.h \
goutputstream.h \
@ -643,6 +645,7 @@ BUILT_SOURCES = \
gioenumtypes.c \
gdbus-daemon-generated.c \
gdbus-daemon-generated.h \
gnetworking.h \
$(NULL)
EXTRA_DIST += \

13
gio/gcredentials.c
View File

@ -22,22 +22,13 @@
#include "config.h"
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <sys/types.h>
#include <sys/socket.h>
#include <string.h>
#endif
#ifdef __OpenBSD__
#include <sys/types.h>
#include <sys/socket.h>
#include <string.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <gobject/gvaluecollector.h>
#include "gcredentials.h"
#include "gnetworkingprivate.h"
#include "gnetworking.h"
#include "gioerror.h"
#include "glibintl.h"

3
gio/gdbusauth.c
View File

@ -39,8 +39,7 @@
#include "gdataoutputstream.h"
#ifdef G_OS_UNIX
#include <sys/types.h>
#include <sys/socket.h>
#include "gnetworking.h"
#include "gunixconnection.h"
#include "gunixcredentialsmessage.h"
#endif

22
gio/ginetaddress.c
View File

@ -56,21 +56,8 @@
* An IPv4 or IPv6 internet address.
*/
/* Networking initialization function, called from inside the g_once of
* g_inet_address_get_type()
*/
static void
_g_networking_init (void)
{
#ifdef G_OS_WIN32
WSADATA wsadata;
if (WSAStartup (MAKEWORD (2, 0), &wsadata) != 0)
g_error ("Windows Sockets could not be initialized");
#endif
}
G_DEFINE_TYPE_WITH_CODE (GInetAddress, g_inet_address, G_TYPE_OBJECT,
_g_networking_init ();)
g_networking_init ();)
struct _GInetAddressPrivate
{
@ -411,8 +398,11 @@ g_inet_address_new_from_string (const gchar *string)
struct in6_addr in6_addr;
#endif
/* Make sure _g_networking_init() has been called */
g_type_ensure (G_TYPE_INET_ADDRESS);
/* If this GInetAddress is the first networking-related object to be
* created, then we won't have called g_networking_init() yet at
* this point.
*/
g_networking_init ();
#ifdef G_OS_WIN32
memset (&sa, 0, sizeof (sa));

1
gio/gio.symbols
View File

@ -1801,3 +1801,4 @@ g_task_return_error_if_cancelled
g_task_return_int
g_task_return_new_error
g_task_return_pointer
g_networking_init

79
gio/gnetworking.c Normal file
View File

@ -0,0 +1,79 @@
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2011 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "gnetworking.h"
/**
* SECTION:gnetworking
* @title: gnetworking.h
* @short_description: System networking includes
* @include: gio/gnetworking.h
*
* The <literal>gnetworking.h</literal> header can be included to get
* various low-level networking-related system headers, automatically
* taking care of certain portability issues for you.
*
* This can be used, for example, if you want to call setsockopt()
* on a #GSocket.
*
* Note that while WinSock has many of the same APIs as the
* traditional UNIX socket API, most of them behave at least slightly
* differently (particularly with respect to error handling). If you
* want your code to work under both UNIX and Windows, you will need
* to take these differences into account.
*
* Also, under glibc, certain non-portable functions are only visible
* in the headers if you define <literal>_GNU_SOURCE</literal> before
* including them. Note that this symbol must be defined before
* including <emphasis>any</emphasis> headers, or it may not take
* effect.
*/
/**
* g_networking_init:
*
* Initializes the platform networking libraries (eg, on Windows, this
* calls WSAStartup()). GLib will call this itself if it is needed, so
* you only need to call it if you directly call system networking
* functions (without calling any GLib networking functions first).
*
* Since: 2.36
*/
void
g_networking_init (void)
{
#ifdef G_OS_WIN32
static volatile gsize inited = 0;
if (g_once_init_enter (&inited))
{
WSADATA wsadata;
if (WSAStartup (MAKEWORD (2, 0), &wsadata) != 0)
g_error ("Windows Sockets could not be initialized");
g_once_init_leave (&inited, 1);
}
#endif
}

83
gio/gnetworking.h.in Normal file
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@ -0,0 +1,83 @@
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2008-2011 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __G_NETWORKING_H__
#define __G_NETWORKING_H__
#include <glib.h>
#ifdef G_OS_WIN32
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
#include <winsock2.h>
#undef interface
#include <ws2tcpip.h>
#include <windns.h>
#include <mswsock.h>
@WSPIAPI_INCLUDE@
#else /* !G_OS_WIN32 */
#include <sys/types.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <resolv.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <net/if.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
@NAMESER_COMPAT_INCLUDE@
#ifndef T_SRV
#define T_SRV 33
#endif
#ifndef _PATH_RESCONF
#define _PATH_RESCONF "/etc/resolv.conf"
#endif
#ifndef CMSG_LEN
/* CMSG_LEN and CMSG_SPACE are defined by RFC 2292, but missing on
* some older platforms.
*/
#define CMSG_LEN(len) ((size_t)CMSG_DATA((struct cmsghdr *)NULL) + (len))
/* CMSG_SPACE must add at least as much padding as CMSG_NXTHDR()
* adds. We overestimate here.
*/
#define GLIB_ALIGN_TO_SIZEOF(len, obj) (((len) + sizeof (obj) - 1) & ~(sizeof (obj) - 1))
#define CMSG_SPACE(len) GLIB_ALIGN_TO_SIZEOF (CMSG_LEN (len), struct cmsghdr)
#endif
#endif
G_BEGIN_DECLS
GLIB_AVAILABLE_IN_2_36
void g_networking_init (void);
G_END_DECLS
#endif /* __G_NETWORKING_H__ */

55
gio/gnetworkingprivate.h
View File

@ -21,60 +21,7 @@
#ifndef __G_NETWORKINGPRIVATE_H__
#define __G_NETWORKINGPRIVATE_H__
#ifdef G_OS_WIN32
#include <winsock2.h>
#undef interface
#include <ws2tcpip.h>
#include <windns.h>
#include <mswsock.h>
#ifdef HAVE_WSPIAPI_H
/* <wspiapi.h> in the Windows SDK and in mingw-w64 has wrappers for
* inline workarounds for getaddrinfo, getnameinfo and freeaddrinfo if
* they aren't present at run-time (on Windows 2000).
*/
#include <wspiapi.h>
#endif
#else /* !G_OS_WIN32 */
#include <sys/types.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <resolv.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#if defined(HAVE_ARPA_NAMESER_COMPAT_H) && !defined(GETSHORT)
#include <arpa/nameser_compat.h>
#endif
#include <net/if.h>
#ifndef T_SRV
#define T_SRV 33
#endif
#ifndef _PATH_RESCONF
#define _PATH_RESCONF "/etc/resolv.conf"
#endif
#ifndef CMSG_LEN
/* CMSG_LEN and CMSG_SPACE are defined by RFC 2292, but missing on
* some older platforms.
*/
#define CMSG_LEN(len) ((size_t)CMSG_DATA((struct cmsghdr *)NULL) + (len))
/* CMSG_SPACE must add at least as much padding as CMSG_NXTHDR()
* adds. We overestimate here.
*/
#define ALIGN_TO_SIZEOF(len, obj) (((len) + sizeof (obj) - 1) & ~(sizeof (obj) - 1))
#define CMSG_SPACE(len) ALIGN_TO_SIZEOF (CMSG_LEN (len), struct cmsghdr)
#endif
#endif
#include "gnetworking.h"
G_BEGIN_DECLS

6
gio/gresolver.c
View File

@ -76,7 +76,8 @@ struct _GResolverPrivate {
* The object that handles DNS resolution. Use g_resolver_get_default()
* to get the default resolver.
*/
G_DEFINE_TYPE (GResolver, g_resolver, G_TYPE_OBJECT)
G_DEFINE_TYPE_WITH_CODE (GResolver, g_resolver, G_TYPE_OBJECT,
g_networking_init ();)
static GList *
srv_records_to_targets (GList *records)
@ -153,9 +154,6 @@ g_resolver_class_init (GResolverClass *resolver_class)
g_type_class_add_private (resolver_class, sizeof (GResolverPrivate));
/* Make sure _g_networking_init() has been called */
g_type_ensure (G_TYPE_INET_ADDRESS);
/**
* GResolver::reload:
* @resolver: a #GResolver

8
gio/gsocket.c
View File

@ -59,7 +59,7 @@
#include "gioerror.h"
#include "gioenums.h"
#include "gioerror.h"
#include "gnetworkingprivate.h"
#include "gnetworking.h"
#include "gsocketaddress.h"
#include "gsocketcontrolmessage.h"
#include "gcredentials.h"
@ -69,7 +69,7 @@
* SECTION:gsocket
* @short_description: Low-level socket object
* @include: gio/gio.h
* @see_also: #GInitable
* @see_also: #GInitable, <link linkend="gio-gnetworking.h">gnetworking.h</link>
*
* A #GSocket is a low-level networking primitive. It is a more or less
* direct mapping of the BSD socket API in a portable GObject based API.
@ -127,6 +127,7 @@ static gboolean g_socket_initable_init (GInitable *initable,
GError **error);
G_DEFINE_TYPE_WITH_CODE (GSocket, g_socket, G_TYPE_OBJECT,
g_networking_init ();
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
g_socket_initable_iface_init));
@ -781,9 +782,6 @@ g_socket_class_init (GSocketClass *klass)
{
GObjectClass *gobject_class G_GNUC_UNUSED = G_OBJECT_CLASS (klass);
/* Make sure winsock has been initialized */
g_type_ensure (G_TYPE_INET_ADDRESS);
#ifdef SIGPIPE
/* There is no portable, thread-safe way to avoid having the process
* be killed by SIGPIPE when calling send() or sendmsg(), so we are

8
gio/gunixconnection.c
View File

@ -39,16 +39,12 @@
#include <gio/gsocketcontrolmessage.h>
#include <gio/gunixfdmessage.h>
#include <gio/gnetworking.h>
#include <gio/gsocket.h>
#include <unistd.h>
#ifdef __linux__
/* for getsockopt() and setsockopt() */
#include <sys/types.h> /* See NOTES */
#include <sys/socket.h>
#include <errno.h>
#include <string.h>
#endif
#include <unistd.h>
G_DEFINE_TYPE_WITH_CODE (GUnixConnection, g_unix_connection,

16
gio/gunixcredentialsmessage.c
View File

@ -37,19 +37,8 @@
/* ---------------------------------------------------------------------------------------------------- */
#ifdef __linux__
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <fcntl.h>
#define G_UNIX_CREDENTIALS_MESSAGE_SUPPORTED 1
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <fcntl.h>
#define G_UNIX_CREDENTIALS_MESSAGE_SUPPORTED 1
#else
/* TODO: please add support for your UNIX flavor */
@ -58,11 +47,14 @@
/* ---------------------------------------------------------------------------------------------------- */
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "gunixcredentialsmessage.h"
#include "gcredentials.h"
#include "gnetworking.h"
#include "glibintl.h"

3
gio/gunixfdlist.c
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@ -33,14 +33,13 @@
#include "config.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include "gunixfdlist.h"
#include "gnetworking.h"
#include "gioerror.h"

3
gio/gunixfdmessage.c
View File

@ -36,8 +36,6 @@
#include "config.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
@ -45,6 +43,7 @@
#include "gunixfdmessage.h"
#include "gunixfdlist.h"
#include "gnetworking.h"
#include "gioerror.h"

2
gio/gunixsocketaddress.c
View File

@ -27,7 +27,7 @@
#include "gunixsocketaddress.h"
#include "glibintl.h"
#include "gnetworkingprivate.h"
#include "gnetworking.h"
/**

2
gio/tests/gdbus-peer.c
View File

@ -35,7 +35,7 @@
/* for g_unlink() */
#include <glib/gstdio.h>
#include <gio/gnetworkingprivate.h>
#include <gio/gnetworking.h>
#include <gio/gunixsocketaddress.h>
#include <gio/gunixfdlist.h>

3
gio/tests/socket.c
View File

@ -22,11 +22,10 @@
#ifdef G_OS_UNIX
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <string.h>
#include <stdlib.h>
#include <gio/gnetworking.h>
#include <gio/gunixconnection.h>
#endif

2
gio/tests/unix-fd.c
View File

@ -1,7 +1,7 @@
#include <gio/gio.h>
#include <gio/gnetworking.h>
#include <gio/gunixfdmessage.h>
#include <gio/gunixsocketaddress.h>
#include <sys/socket.h>
#include <string.h>
#include <unistd.h>