mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-08-06 09:50:28 +00:00
Added initial implementation of SIOCGIFCONFIG, SIOCGIFADDR, SIOCGIFFLAGS
This commit is contained in:
Fabrizio Bertocci
parent
70828ee0ca
commit
08765c0850
3 changed files with 253 additions and 106 deletions
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@ -23,95 +23,21 @@
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#include "libc/sock/sock.h"
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#include "libc/sock/sock.h"
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#include "libc/sock/internal.h"
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#include "libc/sock/internal.h"
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#include "libc/sysv/errfuns.h"
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#include "libc/sysv/errfuns.h"
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#include "libc/sysv/consts/iff.h"
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#include "libc/nt/winsock.h"
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#include "libc/nt/winsock.h"
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#include "libc/nt/errors.h"
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#include "libc/nt/errors.h"
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#include "libc/nt/iphlpapi.h"
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#include "libc/nt/struct/ipAdapterAddress.h"
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#include "libc/nt/windows.h" /* Needed for WideCharToMultiByte */
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#include "libc/bits/weaken.h"
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#include "libc/assert.h"
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// TODO: Remove me
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// TODO: Remove me
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#include "libc/bits/weaken.h"
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#include "libc/stdio/stdio.h"
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#include "libc/stdio/stdio.h"
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#define PRINTF weaken(printf)
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#define PRINTF weaken(printf)
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#define MAX_INTERFACES 32
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#define MAX_INTERFACES 32
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#if 1
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#define GAA_FLAG_SKIP_UNICAST 0x0001
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#define GAA_FLAG_SKIP_ANYCAST 0x0002
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#define GAA_FLAG_SKIP_MULTICAST 0x0004
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#define GAA_FLAG_SKIP_DNS_SERVER 0x0008
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#define GAA_FLAG_INCLUDE_PREFIX 0x0010
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#define GAA_FLAG_SKIP_FRIENDLY_NAME 0x0020
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#define GAA_FLAG_INCLUDE_WINS_INFO 0x0040
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#define GAA_FLAG_INCLUDE_GATEWAYS 0x0080
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#define GAA_FLAG_INCLUDE_ALL_INTERFACES 0x0100
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#define GAA_FLAG_INCLUDE_ALL_COMPARTMENTS 0x0200
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#define GAA_FLAG_INCLUDE_TUNNEL_BINDINGORDER 0x0400
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#define GAA_FLAG_SKIP_DNS_INFO 0x0800
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typedef struct _IP_ADAPTER_ADDRESSES_XP {
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union {
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uint64_t Alignment;
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struct {
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uint32_t Length;
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uint32_t IfIndex;
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};
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};
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struct _IP_ADAPTER_ADDRESSES_XP *Next;
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char * AdapterName;
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void * FirstUnicastAddress;
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void * FirstAnycastAddress;
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void * FirstMulticastAddress;
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void * FirstDnsServerAddress;
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wchar_t *DnsSuffix;
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wchar_t *Description;
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wchar_t *FriendlyName;
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/* Filler */
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} IP_ADAPTER_ADDRESSES_XP, *PIP_ADAPTER_ADDRESSES_XP;
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extern unsigned long GetAdaptersAddresses(
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uint32_t Family,
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uint32_t Flags,
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void * Reserved,
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char *AdapterAddresses,
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uint32_t *SizePointer);
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textwindows int ioctl_siocgifconf_nt(int fd, struct ifconf *ifc) {
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uint32_t rv, size;
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char * adapter_addresses;
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struct _IP_ADAPTER_ADDRESSES_XP *aa;
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PRINTF("FABDEBUG> ioctl(SIOCGIFCONF) for Windows... printf=%p, GetAdaptersAddresses=%p\n", weaken(printf), weaken(GetAdaptersAddresses));
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if (!weaken(GetAdaptersAddresses)) {
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PRINTF("FABDEBUG> NULL GetAdaptersAddresses\n");
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return enomem();
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}
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rv = weaken(GetAdaptersAddresses)(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, NULL, NULL, &size);
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if (rv != kNtErrorBufferOverflow) {
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PRINTF("FABDEBUG> GetAdaptersAddresses failed %d\n", WSAGetLastError());
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return ebadf();
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}
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PRINTF("FABDEBUG> size=%lu\n", size);
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adapter_addresses = (char *)weaken(malloc)(size);
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if (!adapter_addresses) {
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return enomem();
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}
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rv = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, NULL, adapter_addresses, &size);
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if (rv != kNtErrorSuccess) {
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PRINTF("FABDEBUG> GetAdaptersAddresses failed %d\n", WSAGetLastError());
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weaken(free)(adapter_addresses);
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return efault();
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}
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for (aa = (struct _IP_ADAPTER_ADDRESSES_XP *)adapter_addresses; aa != NULL; aa = aa->Next) {
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PRINTF("FABDEBUG> Adapter name = %s", aa->AdapterName);
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}
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weaken(free)(adapter_addresses);
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return 0;
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}
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#else
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/* Reference:
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/* Reference:
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* - Description of ioctls: https://docs.microsoft.com/en-us/windows/win32/winsock/winsock-ioctls
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* - Description of ioctls: https://docs.microsoft.com/en-us/windows/win32/winsock/winsock-ioctls
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* - Structure INTERFACE_INFO: https://docs.microsoft.com/en-us/windows/win32/api/ws2ipdef/ns-ws2ipdef-interface_info
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* - Structure INTERFACE_INFO: https://docs.microsoft.com/en-us/windows/win32/api/ws2ipdef/ns-ws2ipdef-interface_info
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@ -119,29 +45,250 @@ textwindows int ioctl_siocgifconf_nt(int fd, struct ifconf *ifc) {
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* - Using SIOCGIFCONF in Win32: https://docs.microsoft.com/en-us/windows/win32/winsock/using-unix-ioctls-in-winsock
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* - Using SIOCGIFCONF in Win32: https://docs.microsoft.com/en-us/windows/win32/winsock/using-unix-ioctls-in-winsock
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*/
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*/
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textwindows int ioctl_siocgifconf_nt(int fd, struct ifconf *ifc) {
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struct NtInterfaceInfo iflist[MAX_INTERFACES];
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uint32_t dwBytes;
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int ret;
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int i, count;
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if (g_fds.p[fd].kind != kFdSocket) {
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/* Design note:
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return ebadf();
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* Because the Linux struct ifreq.ifr_name has a max length of 16, this could
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}
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* potentially lead to ambiguouity in interfaces.
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* E.g. "Ethernet Interface 1", "Ethernet Interface 2" they are both truncated
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* as "Ethernet Interfa"
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* Since subsequent ioctl() (e.g. SIOCGIFFLAGS) uses this name to
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* identify the speficif interface, we need to make sure that all the returned
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* names are unique and have a way to corelate to the original adapter addresses
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* record.
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*/
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struct HostAdapterDesc {
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char name[IFNAMSIZ]; /* Given name */
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NtIpAdapterAddresses * addresses; /* NULL = invalid record */
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};
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ret = WSAIoctl(g_fds.p[fd].handle, kNtSioGetInterfaceList, NULL, 0, &iflist, sizeof(iflist), &dwBytes, NULL, NULL);
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NtIpAdapterAddresses * theHostAdapterAddress;
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if (ret == -1) {
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struct HostAdapterDesc theAdapterName[MAX_INTERFACES];
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PRINTF("FABDEBUG> WSAIoctl failed %d\n", WSAGetLastError());
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return weaken(__winsockerr)();
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}
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PRINTF("FABDEBUG> WSAIoctl success\n");
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count = dwBytes / sizeof(struct NtInterfaceInfo);
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/* Given a short adapter name, look into theAdapterName to see if there is
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PRINTF("CI> SIO_GET_INTERFACE_LIST success:\n");
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* an adapter with the same name. Returns the index of theAdapterName
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for (i = 0; i < count; ++i) {
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* if found, or -1 if not found
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PRINTF("CI>\t #i: addr=%08x, flags=%08x, bcast=%08x\n", i, iflist[i].iiAddress.sin_addr.s_addr, iflist[i].iiFlags, iflist[i].iiBroadcastAddress.sin_addr.s_addr);
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*/
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}
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static int findAdapterByName(const char *name) {
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return ret;
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int i;
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for (i = 0; (i < MAX_INTERFACES) && theAdapterName[i].addresses; ++i) {
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if (!strncmp(name, theAdapterName[i].name, IFNAMSIZ)) {
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/* Found */
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return i;
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}
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}
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/* Not found */
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return -1;
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}
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}
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#endif
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static void freeAdapterInfo(void) {
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if (theHostAdapterAddress) {
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/* Free any existing adapter informations */
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weaken(free)(theHostAdapterAddress);
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theHostAdapterAddress = NULL;
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memset(theAdapterName, 0, sizeof(theAdapterName));
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}
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}
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/* Sets theHostAdapterAddress.
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* Returns -1 in case of failure (setting errno appropriately), 0 if success */
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static int _readAdapterAddresses(void) {
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uint32_t size, rc;
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PRINTF("FABDEBUG> _readAdapterAddresses:\n");
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assert(theHostAdapterAddress == NULL);
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assert(weaken(GetAdaptersAddresses));
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assert(weaken(WideCharToMultiByte));
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/* Calculate the required data size
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* Note: alternatively you can use AF_UNSPEC to also return IPv6 interfaces
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*/
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rc = weaken(GetAdaptersAddresses)(AF_INET,
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NT_GAA_FLAG_INCLUDE_PREFIX,
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NULL, /* Reserved */
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NULL, /* Ptr */
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&size);
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if (rc != kNtErrorBufferOverflow) {
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PRINTF("FABDEBUG> \tGetAdaptersAddresses failed with error %d\n", WSAGetLastError());
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return ebadf();
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}
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PRINTF("FABDEBUG> \tsize required=%lu, allocating...\n", size);
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// TODO: Do we need to access malloc/free through a weak ref?
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theHostAdapterAddress = (NtIpAdapterAddresses *)weaken(malloc)(size);
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if (!theHostAdapterAddress) {
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PRINTF("FABDEBUG> \tmalloc failed\n");
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return enomem();
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}
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/* Re-run GetAdaptersAddresses this time with a valid buffer */
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rc = weaken(GetAdaptersAddresses)(AF_INET,
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NT_GAA_FLAG_INCLUDE_PREFIX,
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NULL,
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theHostAdapterAddress,
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&size);
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if (rc != kNtErrorSuccess) {
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PRINTF("FABDEBUG> GetAdaptersAddresses failed %d\n", WSAGetLastError());
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freeAdapterInfo();
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return efault();
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}
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PRINTF("FABDEBUG> \tDone reading.\n");
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return 0;
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}
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void printUnicastAddressList(NtPIpAdapterUnicastAddress addr) {
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const char * sep = "";
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for(; addr; addr=addr->Next) {
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PRINTF("%s%s", sep, weaken(inet_ntoa)(
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((struct sockaddr_in *)(addr->Address.lpSockaddr))->sin_addr));
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if (!sep[0]) {
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sep=", ";
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}
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}
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}
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static int insertAdapterName(NtPIpAdapterAddresses aa) {
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char name[IFNAMSIZ];
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int i;
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int sfx;
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memset(name, 0, sizeof(name));
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/* On Windows, wchar_t is 16 bit, Linux is 32 bit, cannot use wcstombs() */
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weaken(WideCharToMultiByte)(0, 0, aa->FriendlyName, -1, name, IFNAMSIZ, NULL, NULL);
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/* Ensure the name is unique */
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for (sfx = 0; sfx < 10; ++sfx) {
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i = findAdapterByName(name);
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if (i != -1) {
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/* Found a duplicate */
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name[strlen(name)-1] = '0' + sfx;
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continue;
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}
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/* Unique */
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for (i = 0; i < MAX_INTERFACES; ++i) {
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if (theAdapterName[i].addresses == NULL) {
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break;
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}
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}
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if (i == MAX_INTERFACES) {
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/* Too many interfaces */
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break;
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}
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strncpy(theAdapterName[i].name, name, IFNAMSIZ-1);
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theAdapterName[i].name[IFNAMSIZ-1] = '\0';
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theAdapterName[i].addresses = aa;
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return i;
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}
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/* Reached max of 10 duplicates */
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return -1;
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}
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textwindows int ioctl_siocgifconf_nt(int fd, struct ifconf *ifc) {
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NtPIpAdapterAddresses aa;
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struct ifreq *ptr;
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int i;
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PRINTF("---------------------------------------\n");
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PRINTF("Sizeof() = %d\n", sizeof(NtIpAdapterAddresses));
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PRINTF("Next = %d\n", offsetof(NtIpAdapterAddresses, Next));
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PRINTF("AdapterName = %d\n", offsetof(NtIpAdapterAddresses, AdapterName));
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PRINTF("FirstUnicastAddress = %d\n", offsetof(NtIpAdapterAddresses, FirstUnicastAddress));
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PRINTF("FirstAnycastAddress = %d\n", offsetof(NtIpAdapterAddresses, FirstAnycastAddress));
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PRINTF("FirstMulticastAddress = %d\n", offsetof(NtIpAdapterAddresses, FirstMulticastAddress));
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PRINTF("FirstDnsServerAddress = %d\n", offsetof(NtIpAdapterAddresses, FirstDnsServerAddress));
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PRINTF("DnsSuffix = %d\n", offsetof(NtIpAdapterAddresses, DnsSuffix));
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PRINTF("Description = %d\n", offsetof(NtIpAdapterAddresses, Description));
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PRINTF("FriendlyName = %d\n", offsetof(NtIpAdapterAddresses, FriendlyName));
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PRINTF("OperStatus = %d\n", offsetof(NtIpAdapterAddresses, OperStatus));
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PRINTF("Flags = %d\n", offsetof(NtIpAdapterAddresses, Flags));
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PRINTF("---------------------------------------\n");
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if (theHostAdapterAddress) {
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freeAdapterInfo();
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}
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if (_readAdapterAddresses() == -1) {
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return -1;
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}
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for (ptr = ifc->ifc_req, aa = theHostAdapterAddress;
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(aa != NULL) && ((char *)(ptr+1) - ifc->ifc_buf) < ifc->ifc_len;
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aa = aa->Next, ptr++) {
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i = insertAdapterName(aa);
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if (i == -1) {
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PRINTF("FABDEBUG> Too many adapters\n");
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freeAdapterInfo();
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return enomem();
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}
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strncpy(ptr->ifr_name, theAdapterName[i].name, IFNAMSIZ-1);
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ptr->ifr_name[IFNAMSIZ-1]='\0';
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PRINTF("FABDEBUG> Adapter name = %s\n", ptr->ifr_name);
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if (aa->FirstUnicastAddress) {
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ptr->ifr_addr = *aa->FirstUnicastAddress->Address.lpSockaddr; /* Windows sockaddr is compatible with Linux */
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PRINTF("FABDEBUG> \tIP=");
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printUnicastAddressList(aa->FirstUnicastAddress);
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PRINTF("\n");
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}
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}
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ifc->ifc_len = (char *)ptr - ifc->ifc_buf;
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return 0;
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}
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/* Performs the SIOCGIFADDR operation */
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int ioctl_siocgifaddr_nt(int fd, struct ifreq *ifr) {
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NtPIpAdapterAddresses aa;
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int i;
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i = findAdapterByName(ifr->ifr_name);
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if (i == -1) {
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PRINTF("FABDEBUG> Bad adapter\n");
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return ebadf();
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}
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aa = theAdapterName[i].addresses;
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if (aa->FirstUnicastAddress) {
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ifr->ifr_addr = *aa->FirstUnicastAddress->Address.lpSockaddr; /* Windows sockaddr is compatible with Linux */
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}
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return 0;
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}
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/* Performs the SIOCGIFFLAGS operation */
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int ioctl_siocgifflags_nt(int fd, struct ifreq *ifr) {
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NtPIpAdapterAddresses aa;
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int i;
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i = findAdapterByName(ifr->ifr_name);
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if (i == -1) {
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PRINTF("FABDEBUG> Bad adapter\n");
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||||||
|
return ebadf();
|
||||||
|
}
|
||||||
|
|
||||||
|
aa = theAdapterName[i].addresses;
|
||||||
|
ifr->ifr_flags = 0;
|
||||||
|
|
||||||
|
/* Flags to consider:
|
||||||
|
* IFF_UP
|
||||||
|
* IFF_BROADCAST ** TODO: We need to validate
|
||||||
|
* IFF_LOOPBACK
|
||||||
|
* IFF_POINTOPOINT
|
||||||
|
* IFF_RUNNING ** Same as IFF_UP for now
|
||||||
|
* IFF_PROMISC ** NOT SUPPORTED, unknown how to retrieve it
|
||||||
|
*/
|
||||||
|
if (aa->OperStatus == IfOperStatusUp) ifr->ifr_flags |= IFF_UP | IFF_RUNNING;
|
||||||
|
if (aa->IfType == NT_IF_TYPE_PPP) ifr->ifr_flags |= IFF_POINTOPOINT;
|
||||||
|
//if (aa->TunnelType != TUNNEL_TYPE_NONE) ifr->ifr_flags |= IFF_POINTOPOINT;
|
||||||
|
if (aa->IfType == NT_IF_TYPE_SOFTWARE_LOOPBACK) ifr->ifr_flags |= IFF_LOOPBACK;
|
||||||
|
if (aa->FirstPrefix != NULL) ifr->ifr_flags |= IFF_BROADCAST;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -35,7 +35,8 @@
|
||||||
|
|
||||||
int ioctl_default(int, uint64_t, void *) hidden;
|
int ioctl_default(int, uint64_t, void *) hidden;
|
||||||
int ioctl_siocgifconf_nt(int, struct ifconf *) hidden;
|
int ioctl_siocgifconf_nt(int, struct ifconf *) hidden;
|
||||||
//int ioctl_siocgifaddr_nt(int, struct ifconf *) hidden;
|
int ioctl_siocgifaddr_nt(int, struct ifreq *) hidden;
|
||||||
|
int ioctl_siocgifflags_nt(int, struct ifreq *) hidden;
|
||||||
|
|
||||||
static int ioctl_siocgifconf_sysv(int fd, struct ifconf *ifc) {
|
static int ioctl_siocgifconf_sysv(int fd, struct ifconf *ifc) {
|
||||||
if (IsBsd()) {
|
if (IsBsd()) {
|
||||||
|
|
@ -131,8 +132,7 @@ int ioctl_siocgifaddr(int fd, void *ifr) {
|
||||||
if (!IsWindows()) {
|
if (!IsWindows()) {
|
||||||
return ioctl_siocgifaddr_sysv(fd, SIOCGIFADDR, (struct ifreq *)ifr);
|
return ioctl_siocgifaddr_sysv(fd, SIOCGIFADDR, (struct ifreq *)ifr);
|
||||||
} else {
|
} else {
|
||||||
return enotsup();
|
return ioctl_siocgifaddr_nt(fd, (struct ifreq *)ifr);
|
||||||
//return ioctl_siocgifaddr_nt(fd, ifc);
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -168,7 +168,6 @@ int ioctl_siocgifflags(int fd, void *ifr) {
|
||||||
/* Both BSD and Linux are for once compatible here... */
|
/* Both BSD and Linux are for once compatible here... */
|
||||||
return ioctl_default(fd, SIOCGIFFLAGS, ifr);
|
return ioctl_default(fd, SIOCGIFFLAGS, ifr);
|
||||||
} else {
|
} else {
|
||||||
return enotsup();
|
return ioctl_siocgifflags_nt(fd, (struct ifreq *)ifr);
|
||||||
//return ioctl_siocgifflags_nt(fd, ifc);
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -28,6 +28,7 @@
|
||||||
|
|
||||||
/* ioctl(SIOCGIFCONFIG) uses GetAdaptersAddresses as weak ref */
|
/* ioctl(SIOCGIFCONFIG) uses GetAdaptersAddresses as weak ref */
|
||||||
STATIC_YOINK("GetAdaptersAddresses");
|
STATIC_YOINK("GetAdaptersAddresses");
|
||||||
|
STATIC_YOINK("WideCharToMultiByte");
|
||||||
|
|
||||||
textwindows int sys_socket_nt(int family, int type, int protocol) {
|
textwindows int sys_socket_nt(int family, int type, int protocol) {
|
||||||
int64_t h;
|
int64_t h;
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue