/*
Geoff Voelker (voelker@cs.washington.edu) 7-29-94
*/
+
+#include <mingw_time.h>
#include <stddef.h> /* for offsetof */
#include <stdlib.h>
#include <stdio.h>
#undef recvfrom
#undef sendto
+#include <iphlpapi.h> /* should be after winsock2.h */
+
#include "w32.h"
#include <dirent.h>
#include "w32common.h"
static BOOL g_b_init_convert_sddl_to_sd;
static BOOL g_b_init_is_valid_security_descriptor;
static BOOL g_b_init_set_file_security;
+static BOOL g_b_init_get_adapters_info;
/*
BEGIN: Wrapper functions around OpenProcessToken
LPTSTR *StringSecurityDescriptor,
PULONG StringSecurityDescriptorLen);
typedef BOOL (WINAPI *IsValidSecurityDescriptor_Proc) (PSECURITY_DESCRIPTOR);
+typedef DWORD (WINAPI *GetAdaptersInfo_Proc) (
+ PIP_ADAPTER_INFO pAdapterInfo,
+ PULONG pOutBufLen);
/* ** A utility function ** */
static BOOL
return retval;
}
+static DWORD WINAPI
+get_adapters_info (PIP_ADAPTER_INFO pAdapterInfo, PULONG pOutBufLen)
+{
+ static GetAdaptersInfo_Proc s_pfn_Get_Adapters_Info = NULL;
+ HMODULE hm_iphlpapi = NULL;
+
+ if (is_windows_9x () == TRUE)
+ return ERROR_NOT_SUPPORTED;
+
+ if (g_b_init_get_adapters_info == 0)
+ {
+ g_b_init_get_adapters_info = 1;
+ hm_iphlpapi = LoadLibrary ("Iphlpapi.dll");
+ if (hm_iphlpapi)
+ s_pfn_Get_Adapters_Info = (GetAdaptersInfo_Proc)
+ GetProcAddress (hm_iphlpapi, "GetAdaptersInfo");
+ }
+ if (s_pfn_Get_Adapters_Info == NULL)
+ return ERROR_NOT_SUPPORTED;
+ return s_pfn_Get_Adapters_Info (pAdapterInfo, pOutBufLen);
+}
+
\f
/* Return 1 if P is a valid pointer to an object of size SIZE. Return
/* For backwards compatibility, check if a .emacs file exists in C:/
If not, then we can try to default to the appdata directory under the
user's profile, which is more likely to be writable. */
- if (!check_existing ("C:/.emacs"))
+ if (faccessat (AT_FDCWD, "C:/.emacs", F_OK, AT_EACCESS) != 0)
{
HRESULT profile_result;
/* Dynamically load ShGetFolderPath, as it won't exist on versions
strcpy (&fname[pend - pstart + 1], "cmdproxy.exe");
ExpandEnvironmentStrings ((LPSTR) fname, bufc,
sizeof (bufc));
- if (check_existing (bufc))
+ if (faccessat (AT_FDCWD, bufc, F_OK, AT_EACCESS)
+ == 0)
{
lpval = bufc;
dwType = REG_SZ;
{
if (winsock_lib != NULL && winsock_inuse == 0)
{
+ release_listen_threads ();
/* Not sure what would cause WSAENETDOWN, or even if it can happen
after WSAStartup returns successfully, but it seems reasonable
to allow unloading winsock anyway in that case. */
rc = pfn_WSAEventSelect (SOCK_HANDLE (fd), hEv, FD_ACCEPT);
if (rc != SOCKET_ERROR)
{
- rc = WaitForSingleObject (hEv, INFINITE);
+ do {
+ rc = WaitForSingleObject (hEv, 500);
+ Sleep (5);
+ } while (rc == WAIT_TIMEOUT
+ && cp->status != STATUS_READ_ERROR
+ && cp->char_avail);
pfn_WSAEventSelect (SOCK_HANDLE (fd), NULL, 0);
if (rc == WAIT_OBJECT_0)
cp->status = STATUS_READ_SUCCEEDED;
return nchars;
}
+\f
+/* Emulation of SIOCGIFCONF and getifaddrs, see process.c. */
+
+extern Lisp_Object conv_sockaddr_to_lisp (struct sockaddr *, int);
+
+/* Return information about network interface IFNAME, or about all
+ interfaces (if IFNAME is nil). */
+static Lisp_Object
+network_interface_get_info (Lisp_Object ifname)
+{
+ ULONG ainfo_len = sizeof (IP_ADAPTER_INFO);
+ IP_ADAPTER_INFO *adapter, *ainfo = xmalloc (ainfo_len);
+ DWORD retval = get_adapters_info (ainfo, &ainfo_len);
+ Lisp_Object res = Qnil;
+
+ if (retval == ERROR_BUFFER_OVERFLOW)
+ {
+ ainfo = xrealloc (ainfo, ainfo_len);
+ retval = get_adapters_info (ainfo, &ainfo_len);
+ }
+
+ if (retval == ERROR_SUCCESS)
+ {
+ int eth_count = 0, tr_count = 0, fddi_count = 0, ppp_count = 0;
+ int sl_count = 0, wlan_count = 0, lo_count = 0, ifx_count = 0;
+ int if_num;
+ struct sockaddr_in sa;
+
+ /* For the below, we need some winsock functions, so make sure
+ the winsock DLL is loaded. If we cannot successfully load
+ it, they will have no use of the information we provide,
+ anyway, so punt. */
+ if (!winsock_lib && !init_winsock (1))
+ goto done;
+
+ for (adapter = ainfo; adapter; adapter = adapter->Next)
+ {
+ char namebuf[MAX_ADAPTER_NAME_LENGTH + 4];
+ u_long ip_addr;
+ /* Present Unix-compatible interface names, instead of the
+ Windows names, which are really GUIDs not readable by
+ humans. */
+ static const char *ifmt[] = {
+ "eth%d", "tr%d", "fddi%d", "ppp%d", "sl%d", "wlan%d",
+ "lo", "ifx%d"
+ };
+ enum {
+ NONE = -1,
+ ETHERNET = 0,
+ TOKENRING = 1,
+ FDDI = 2,
+ PPP = 3,
+ SLIP = 4,
+ WLAN = 5,
+ LOOPBACK = 6,
+ OTHER_IF = 7
+ } ifmt_idx;
+
+ switch (adapter->Type)
+ {
+ case MIB_IF_TYPE_ETHERNET:
+ /* Windows before Vista reports wireless adapters as
+ Ethernet. Work around by looking at the Description
+ string. */
+ if (strstr (adapter->Description, "Wireless "))
+ {
+ ifmt_idx = WLAN;
+ if_num = wlan_count++;
+ }
+ else
+ {
+ ifmt_idx = ETHERNET;
+ if_num = eth_count++;
+ }
+ break;
+ case MIB_IF_TYPE_TOKENRING:
+ ifmt_idx = TOKENRING;
+ if_num = tr_count++;
+ break;
+ case MIB_IF_TYPE_FDDI:
+ ifmt_idx = FDDI;
+ if_num = fddi_count++;
+ break;
+ case MIB_IF_TYPE_PPP:
+ ifmt_idx = PPP;
+ if_num = ppp_count++;
+ break;
+ case MIB_IF_TYPE_SLIP:
+ ifmt_idx = SLIP;
+ if_num = sl_count++;
+ break;
+ case IF_TYPE_IEEE80211:
+ ifmt_idx = WLAN;
+ if_num = wlan_count++;
+ break;
+ case MIB_IF_TYPE_LOOPBACK:
+ if (lo_count < 0)
+ {
+ ifmt_idx = LOOPBACK;
+ if_num = lo_count++;
+ }
+ else
+ ifmt_idx = NONE;
+ break;
+ default:
+ ifmt_idx = OTHER_IF;
+ if_num = ifx_count++;
+ break;
+ }
+ if (ifmt_idx == NONE)
+ continue;
+ sprintf (namebuf, ifmt[ifmt_idx], if_num);
+
+ sa.sin_family = AF_INET;
+ ip_addr = sys_inet_addr (adapter->IpAddressList.IpAddress.String);
+ if (ip_addr == INADDR_NONE)
+ {
+ /* Bogus address, skip this interface. */
+ continue;
+ }
+ sa.sin_addr.s_addr = ip_addr;
+ sa.sin_port = 0;
+ if (NILP (ifname))
+ res = Fcons (Fcons (build_string (namebuf),
+ conv_sockaddr_to_lisp ((struct sockaddr*) &sa,
+ sizeof (struct sockaddr))),
+ res);
+ else if (strcmp (namebuf, SSDATA (ifname)) == 0)
+ {
+ Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil);
+ register struct Lisp_Vector *p = XVECTOR (hwaddr);
+ Lisp_Object flags = Qnil;
+ int n;
+ u_long net_mask;
+
+ /* Flags. We guess most of them by type, since the
+ Windows flags are different and hard to get by. */
+ flags = Fcons (intern ("up"), flags);
+ if (ifmt_idx == ETHERNET || ifmt_idx == WLAN)
+ {
+ flags = Fcons (intern ("broadcast"), flags);
+ flags = Fcons (intern ("multicast"), flags);
+ }
+ flags = Fcons (intern ("running"), flags);
+ if (ifmt_idx == PPP)
+ {
+ flags = Fcons (intern ("pointopoint"), flags);
+ flags = Fcons (intern ("noarp"), flags);
+ }
+ if (adapter->HaveWins)
+ flags = Fcons (intern ("WINS"), flags);
+ if (adapter->DhcpEnabled)
+ flags = Fcons (intern ("dynamic"), flags);
+
+ res = Fcons (flags, res);
+
+ /* Hardware address and its family. */
+ for (n = 0; n < adapter->AddressLength; n++)
+ p->u.contents[n] = make_number ((int) adapter->Address[n]);
+ /* Windows does not support AF_LINK or AF_PACKET family
+ of addresses. Use an arbitrary family number that is
+ identical to what GNU/Linux returns. */
+ res = Fcons (Fcons (make_number (1), hwaddr), res);
+
+ /* Network mask. */
+ sa.sin_family = AF_INET;
+ net_mask = sys_inet_addr (adapter->IpAddressList.IpMask.String);
+ if (net_mask != INADDR_NONE)
+ {
+ sa.sin_addr.s_addr = net_mask;
+ sa.sin_port = 0;
+ res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
+ sizeof (struct sockaddr)),
+ res);
+ }
+ else
+ res = Fcons (Qnil, res);
+
+ sa.sin_family = AF_INET;
+ if (ip_addr != INADDR_NONE)
+ {
+ /* Broadcast address is only reported by
+ GetAdaptersAddresses, which is of limited
+ availability. Generate it on our own. */
+ u_long bcast_addr = (ip_addr & net_mask) | ~net_mask;
+
+ sa.sin_addr.s_addr = bcast_addr;
+ sa.sin_port = 0;
+ res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
+ sizeof (struct sockaddr)),
+ res);
+
+ /* IP address. */
+ sa.sin_addr.s_addr = ip_addr;
+ sa.sin_port = 0;
+ res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
+ sizeof (struct sockaddr)),
+ res);
+ }
+ else
+ res = Fcons (Qnil, Fcons (Qnil, res));
+ }
+ }
+ /* GetAdaptersInfo is documented to not report loopback
+ interfaces, so we generate one out of thin air. */
+ if (!lo_count)
+ {
+ sa.sin_family = AF_INET;
+ sa.sin_port = 0;
+ if (NILP (ifname))
+ {
+ sa.sin_addr.s_addr = sys_inet_addr ("127.0.0.1");
+ res = Fcons (Fcons (build_string ("lo"),
+ conv_sockaddr_to_lisp ((struct sockaddr*) &sa,
+ sizeof (struct sockaddr))),
+ res);
+ }
+ else if (strcmp (SSDATA (ifname), "lo") == 0)
+ {
+ res = Fcons (Fcons (intern ("running"),
+ Fcons (intern ("loopback"),
+ Fcons (intern ("up"), Qnil))), Qnil);
+ /* 772 is what 3 different GNU/Linux systems report for
+ the loopback interface. */
+ res = Fcons (Fcons (make_number (772),
+ Fmake_vector (make_number (6),
+ make_number (0))),
+ res);
+ sa.sin_addr.s_addr = sys_inet_addr ("255.0.0.0");
+ res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
+ sizeof (struct sockaddr)),
+ res);
+ sa.sin_addr.s_addr = sys_inet_addr ("0.0.0.0");
+ res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
+ sizeof (struct sockaddr)),
+ res);
+ sa.sin_addr.s_addr = sys_inet_addr ("127.0.0.1");
+ res = Fcons (conv_sockaddr_to_lisp ((struct sockaddr *) &sa,
+ sizeof (struct sockaddr)),
+ res);
+ }
+
+ }
+ }
+
+ done:
+ xfree (ainfo);
+ return res;
+}
+
+Lisp_Object
+network_interface_list (void)
+{
+ return network_interface_get_info (Qnil);
+}
+
+Lisp_Object
+network_interface_info (Lisp_Object ifname)
+{
+ return network_interface_get_info (ifname);
+}
+
+\f
/* The Windows CRT functions are "optimized for speed", so they don't
check for timezone and DST changes if they were last called less
than 1 minute ago (see http://support.microsoft.com/kb/821231). So
g_b_init_convert_sddl_to_sd = 0;
g_b_init_is_valid_security_descriptor = 0;
g_b_init_set_file_security = 0;
+ g_b_init_get_adapters_info = 0;
num_of_processors = 0;
/* The following sets a handler for shutdown notifications for
console apps. This actually applies to Emacs in both console and