Network: Use QFile::encodeName for POSIX paths instead of toLatin1

POSIX API doesn't really have defined encoding and kernel works with
null-terminated byte strings (char *) without any knowledge about
encodings.

But usually applications use LANG (and LC_*) as encoding making it
possible to use any encoding user wishes, including full Unicode
support when UTF-8 is used.

This allows to create and listen to sockets with paths containing
non-latin characters.
eg. listen(QString("/run/υποδοχή"));

Change-Id: I022ac6a8a4575103125c48768a66bef88a232a2a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Dāvis Mosāns <davispuh@gmail.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/network/socket/qlocalsocket_unix.cpp b/src/network/socket/qlocalsocket_unix.cpp
index 77c5028fb3..bb0f11f038 100644
--- a/src/network/socket/qlocalsocket_unix.cpp
+++ b/src/network/socket/qlocalsocket_unix.cpp
@@ -268,15 +268,16 @@ void QLocalSocketPrivate::_q_connectToSocket()
         connectingPathName += QLatin1Char('/') + connectingName;
     }
 
+    const QByteArray encodedConnectingPathName = QFile::encodeName(connectingPathName);
     struct sockaddr_un name;
     name.sun_family = PF_UNIX;
-    if (sizeof(name.sun_path) < (uint)connectingPathName.toLatin1().size() + 1) {
+    if (sizeof(name.sun_path) < (uint)encodedConnectingPathName.size() + 1) {
         QString function = QLatin1String("QLocalSocket::connectToServer");
         errorOccurred(QLocalSocket::ServerNotFoundError, function);
         return;
     }
-    ::memcpy(name.sun_path, connectingPathName.toLatin1().data(),
-             connectingPathName.toLatin1().size() + 1);
+    ::memcpy(name.sun_path, encodedConnectingPathName.constData(),
+             encodedConnectingPathName.size() + 1);
     if (-1 == qt_safe_connect(connectingSocket, (struct sockaddr *)&name, sizeof(name))) {
         QString function = QLatin1String("QLocalSocket::connectToServer");
         switch (errno)