diff options
Diffstat (limited to 'src/network/kernel/qnetworkinterface_unix.cpp')
| -rw-r--r-- | src/network/kernel/qnetworkinterface_unix.cpp | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/network/kernel/qnetworkinterface_unix.cpp b/src/network/kernel/qnetworkinterface_unix.cpp index 1c2f5d335a..2f3c940d25 100644 --- a/src/network/kernel/qnetworkinterface_unix.cpp +++ b/src/network/kernel/qnetworkinterface_unix.cpp @@ -139,6 +139,15 @@ QString QNetworkInterfaceManager::interfaceNameFromIndex(uint index) return QString::number(uint(index)); } +static int getMtu(int socket, struct ifreq *req) +{ +#ifdef SIOCGIFMTU + if (qt_safe_ioctl(socket, SIOCGIFMTU, req) == 0) + return req->ifr_mtu; +#endif + return 0; +} + #ifdef QT_NO_GETIFADDRS // getifaddrs not available @@ -278,6 +287,7 @@ static QList<QNetworkInterfacePrivate *> interfaceListing() if (qt_safe_ioctl(socket, SIOCGIFFLAGS, &req) >= 0) { iface->flags = convertFlags(req.ifr_flags); } + iface->mtu = getMtu(socket, &req); #ifdef SIOCGIFHWADDR // Get the HW address @@ -458,9 +468,16 @@ static QNetworkInterface::InterfaceType probeIfType(int socket, int iftype, stru static QList<QNetworkInterfacePrivate *> createInterfaces(ifaddrs *rawList) { QList<QNetworkInterfacePrivate *> interfaces; - struct ifmediareq mediareq; + union { + struct ifmediareq mediareq; + struct ifreq req; + }; int socket = -1; + // ensure both structs start with the name field, of size IFNAMESIZ + Q_STATIC_ASSERT(sizeof(mediareq.ifm_name) == sizeof(req.ifr_name)); + Q_ASSERT(&mediareq.ifm_name == &req.ifr_name); + // on NetBSD we use AF_LINK and sockaddr_dl // scan the list for that family for (ifaddrs *ptr = rawList; ptr; ptr = ptr->ifa_next) @@ -476,6 +493,7 @@ static QList<QNetworkInterfacePrivate *> createInterfaces(ifaddrs *rawList) strlcpy(mediareq.ifm_name, ptr->ifa_name, sizeof(mediareq.ifm_name)); iface->type = probeIfType(openSocket(socket), sdl->sdl_type, &mediareq); + iface->mtu = getMtu(socket, &req); } if (socket != -1) |