Add ioctl(SIOCGIFxxx) support (#197)

- SIOCGIFCONFIG: reads and enumerate all the network interfaces
- SIOCGIFADDR: reads network address for a given interface
- SIOCGIFFLAGS: reads network flags for a given interface
- SIOCGIFNETMASK: reads network netmask for a given interface
- SIOCGIFBRDADDR: reads network broadcast address for a given interface
- SIOCGIFDSTADDR: reads peer destination address for a given
  interface (not supported for Windows)

This change defines Linux ABI structs for the above interfaces and adds
polyfills to ensure they behave consistently on XNU and Windows.

Makefile

@@ -240,6 +240,7 @@ COSMOPOLITAN_OBJECTS =		\
 	LIBC_DNS		\
 	LIBC_SOCK		\
 	LIBC_NT_WS2_32		\
+	LIBC_NT_IPHLPAPI	\
 	LIBC_NT_MSWSOCK		\
 	LIBC_OHMYPLUS		\
 	LIBC_X			\

libc/calls/calls.mk

@@ -43,6 +43,8 @@ LIBC_CALLS_A_DIRECTDEPS =				\
 	LIBC_NT_ADVAPI32				\
 	LIBC_NT_KERNEL32				\
 	LIBC_NT_NTDLL					\
+	LIBC_NT_WS2_32					\
+	LIBC_NT_IPHLPAPI				\
 	LIBC_STR					\
 	LIBC_STUBS					\
 	LIBC_SYSV_CALLS					\

libc/calls/ioctl-siocgifconf-nt.c

@@ -0,0 +1,398 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/calls.h"
+#include "libc/calls/internal.h"
+#include "libc/sysv/consts/o.h"
+#include "libc/sysv/consts/af.h"
+#include "libc/sock/sock.h"
+#include "libc/sock/internal.h"
+#include "libc/sysv/errfuns.h"
+#include "libc/sysv/consts/iff.h"
+#include "libc/nt/winsock.h"
+#include "libc/nt/errors.h"
+#include "libc/nt/iphlpapi.h"
+#include "libc/nt/struct/ipadapteraddresses.h"
+#include "libc/bits/weaken.h"
+#include "libc/str/str.h"
+#include "libc/assert.h"
+//#include "libc/nt/windows.h"        /* Needed for WideCharToMultiByte */
+
+/* Maximum number of unicast addresses handled for each interface */
+#define MAX_UNICAST_ADDR    32
+#define MAX_NAME_CLASH      ((int)('z'-'a'))      /* Allow a..z */
+
+static int insertAdapterName(NtIpAdapterAddresses *aa);
+
+struct HostAdapterInfoNode {
+  struct HostAdapterInfoNode * next;
+  char name[IFNAMSIZ];    /* Obtained from FriendlyName */
+  struct sockaddr unicast;
+  struct sockaddr netmask;
+  struct sockaddr broadcast;
+  short flags;
+} *__hostInfo;
+
+/* Frees all the nodes of the _hostInfo */
+static void freeHostInfo() {
+  struct HostAdapterInfoNode *next, *node = __hostInfo;
+  while(node) {
+    next = node->next;
+    weaken(free)(node);
+    node = next;
+  }
+  __hostInfo = NULL;
+}
+
+/* Given a short adapter name, look into __hostInfo to see if there is
+ * an adapter with the same name. Returns the pointer to the HostAdapterInfoNode
+ * if found, or NULL if not found
+ */
+static struct HostAdapterInfoNode *findAdapterByName(const char *name) {
+  struct HostAdapterInfoNode *node = __hostInfo;
+  while(node) {
+    if (!strncmp(name, node->name, IFNAMSIZ)) {
+      /* Found */
+      return node;
+    }
+    node=node->next;
+  }
+  /* Not found */
+  return NULL;
+}
+
+/* Creates a new HostAdapterInfoNode object, initializes it from
+ * the given adapter, unicast address and address prefixes
+ * and insert it in the __hostInfo.
+ * Increments the pointers to the unicast addresses and
+ * the address prefixes
+ * Returns NULL if an error occurred or the newly created
+ * HostAdapterInfoNode object (last in the list)
+ */
+struct HostAdapterInfoNode *appendHostInfo(
+    struct HostAdapterInfoNode *parentInfoNode,
+    const char *baseName,               /* Max length = IFNAMSIZ-1 */
+    const NtIpAdapterAddresses *aa,     /* Top level adapter object being processed */
+    NtIpAdapterUnicastAddress **ptrUA,  /* Ptr to ptr to unicast address list node */
+    NtIpAdapterPrefix **ptrAP,          /* Ptr to ptr to Adapter prefix list node */
+    int count) {                        /* count is used to create a unique name in case of alias */
+
+  struct HostAdapterInfoNode *temp;
+  struct HostAdapterInfoNode *node;
+  struct sockaddr_in tempAddr;
+  int attemptNum;
+
+  node = weaken(calloc)(1, sizeof(*node));
+  if (!node) {
+    errno = ENOMEM;
+    return NULL;
+  }
+
+  memcpy(node->name, baseName, IFNAMSIZ);
+
+  /* Are there more than a single unicast address ? */
+  if (count > 0 || ((*ptrUA)->Next != NULL)) {
+    /* Yes, compose it using <baseName>:<count> */
+    size_t nameLen = strlen(node->name);
+    if (nameLen+2 > IFNAMSIZ-2) {
+      /* Appending the ":x" will exceed the size, need to chop the end */
+      nameLen -= 2;
+    }
+    node->name[nameLen-2] = ':';
+    node->name[nameLen-1] = '0'+count;
+    node->name[nameLen] = '\0';
+  }
+
+  /* Is there a name clash with other interfaces? */
+  for (attemptNum=0; attemptNum < MAX_NAME_CLASH; ++attemptNum) {
+    temp = findAdapterByName(node->name);
+    if (!temp) {
+      break;
+
+    } else {
+      /* Yes, this name has been already used, append an extra 
+       * character to resolve conflict. Note since the max length
+       * of the string now is IFNAMSIZ-2, we have just enough space for this.
+       * E.g. 'Ethernet_1' -> 'Ethernet_1a'
+       */
+
+      size_t pos = strlen(node->name);
+      node->name[pos] = 'a' + attemptNum;
+      node->name[pos+1] = '\0';
+      /* Try again */
+    }
+  }
+  if (attemptNum == MAX_NAME_CLASH) {
+    /* Cannot resolve the conflict */
+    weaken(free)(node);
+    errno = EEXIST;
+    return NULL;
+  }
+
+  /* Finally we got a unique short and friendly name */
+  node->unicast = *((*ptrUA)->Address.lpSockaddr);
+  if (*ptrUA == aa->FirstUnicastAddress) {
+    short flags;
+    /* This is the first unicast address of this interface
+     * calculate the flags for this adapter. Flags to consider:
+     * IFF_UP
+     * IFF_BROADCAST        ** TODO: We need to validate
+     * IFF_LOOPBACK
+     * IFF_POINTOPOINT
+     * IFF_MULTICAST
+     * IFF_RUNNING          ** Same as IFF_UP for now
+     * IFF_PROMISC          ** NOT SUPPORTED, unknown how to retrieve it
+     */
+    flags = 0;
+    if (aa->OperStatus == kNtIfOperStatusUp) flags |= IFF_UP | IFF_RUNNING;
+    if (aa->IfType == kNtIfTypePpp) flags |= IFF_POINTOPOINT;
+    //if (aa->TunnelType != TUNNEL_TYPE_NONE) flags |= IFF_POINTOPOINT;
+    if (aa->NoMulticast == 0) flags |= IFF_MULTICAST;
+    if (aa->IfType == kNtIfTypeSoftwareLoopback) flags |= IFF_LOOPBACK;
+    if (aa->FirstPrefix != NULL) flags |= IFF_BROADCAST;
+    node->flags = flags;
+  } else {
+    /* Copy from previous node */
+    node->flags = parentInfoNode->flags;
+  }
+
+  /* Process the prefix and extract the netmask and broadcast */
+  /* According to the doc:
+   *  ... On Windows Vista and later, the linked IP_ADAPTER_PREFIX structures pointed to 
+   *  by the FirstPrefix member include three IP adapter prefixes for each IP address 
+   *  assigned to the adapter. These include the host IP address prefix, the subnet IP 
+   *  address prefix, and the subnet broadcast IP address prefix. In addition, for each 
+   *  adapter there is a multicast address prefix and a broadcast address prefix.
+   *
+   * For example, interface "Ethernet", with 2 unicast addresses:
+   *  - 192.168.1.84 
+   *  - 192.168.5.99
+   * The Prefix list has 8 elements:
+   *  #1: 192.168.1.0/24      <- Network, use the PrefixLength for netmask
+   *  #2: 192.168.1.84/32     <- Host IP
+   *  #3: 192.168.1.255/32    <- Subnet broadcast
+   *
+   *  #4: 192.168.5.0/24      <- Network
+   *  #5: 192.168.5.99/32     <- Host IP
+   *  #6: 192.168.5.255/32    <- Subnet broadcast
+   *
+   *  #7: 224.0.0.0/4         <- Multicast
+   *  #8: 255.255.255.255/32  <- Broadcast
+   */
+
+  /* Netmask */
+  memset(&tempAddr, 0, sizeof(tempAddr));
+  tempAddr.sin_family = AF_INET;
+  tempAddr.sin_addr.s_addr = (uint32_t)((1LLU << (*ptrAP)->PrefixLength) - 1LLU);
+  memcpy(&node->netmask, &tempAddr, sizeof(tempAddr));
+
+  *ptrAP = (*ptrAP)->Next;
+  *ptrAP = (*ptrAP)->Next;    /* Skip over Host IP */
+
+  /* Broadcast */
+  node->broadcast = *((*ptrAP)->Address.lpSockaddr);
+  *ptrAP = (*ptrAP)->Next;
+
+  /* Move pointer to Unicast Address record */
+  *ptrUA = (*ptrUA)->Next;
+
+  /* Append this node to the last node (if any) */
+  if (parentInfoNode) {
+    parentInfoNode->next = node;
+  }
+
+  /* Success */
+  return node;
+}
+
+/* Returns -1 in case of failure */
+static int createHostInfo(NtIpAdapterAddresses *firstAdapter) {
+  NtIpAdapterAddresses *aa;
+  NtIpAdapterUnicastAddress *ua;
+  NtIpAdapterPrefix *ap;
+  struct HostAdapterInfoNode *node = NULL;
+  char baseName[IFNAMSIZ];
+  char name[IFNAMSIZ];
+  int count, i;
+
+  /* __hostInfo must be empty */
+  assert(__hostInfo == NULL);
+  assert(weaken(tprecode16to8));
+
+  for (aa = firstAdapter; aa; aa = aa->Next) {
+    /* Skip all the interfaces with no address and the ones that are not AF_INET */
+    if (!aa->FirstUnicastAddress || 
+        aa->FirstUnicastAddress->Address.lpSockaddr->sa_family != AF_INET) {
+      continue;
+    }
+
+    /* Use max IFNAMSIZ-1 chars, leave the last char for eventual conficts */
+    tprecode16to8(baseName, IFNAMSIZ-1, aa->FriendlyName);
+    baseName[IFNAMSIZ-2] = '\0';
+    /* Replace any space with a '_' */
+    for (i = 0; i < IFNAMSIZ-2; ++i) {
+      if (baseName[i] == ' ') baseName[i] = '_';
+      if (!baseName[i]) break;
+    }
+    for (count = 0, ua = aa->FirstUnicastAddress, ap = aa->FirstPrefix; 
+        (ua != NULL) && (count < MAX_UNICAST_ADDR); 
+        ++count) {
+      node = appendHostInfo(node, baseName, aa, &ua, &ap, count);
+      if (!node) {
+        goto err;
+      }
+      if (!__hostInfo) __hostInfo = node;
+    }
+
+    /* Note: do we need to process the remaining adapter prefix? 
+     *      ap       - points to broadcast addr
+     *      ap->Next - points to interface multicast addr
+     * Ignoring them for now
+     */
+  }
+  return 0;
+
+err:
+  freeHostInfo(__hostInfo);
+  return -1;
+}
+
+static int readAdapterAddresses(void) {
+  uint32_t size, rc;
+  NtIpAdapterAddresses * aa = NULL;
+
+  assert(weaken(GetAdaptersAddresses));
+
+  /* Calculate the required data size
+   * Note: alternatively you can use AF_UNSPEC to also return IPv6 interfaces 
+   */
+  rc = weaken(GetAdaptersAddresses)(AF_INET,  
+      kNtGaaFlagSkipAnycast | kNtGaaFlagSkipMulticast | kNtGaaFlagSkipDnsServer | kNtGaaFlagIncludePrefix,
+      NULL,  /* Reserved */
+      NULL,  /* Ptr */
+      &size);
+  if (rc != kNtErrorBufferOverflow) {
+    ebadf();
+    goto err;
+  }
+
+  aa = (NtIpAdapterAddresses *)weaken(malloc)(size);
+  if (!aa) {
+    enomem();
+    goto err;
+  }
+
+  /* Re-run GetAdaptersAddresses this time with a valid buffer */
+  rc = weaken(GetAdaptersAddresses)(AF_INET, 
+      kNtGaaFlagSkipAnycast | kNtGaaFlagSkipMulticast | kNtGaaFlagSkipDnsServer | kNtGaaFlagIncludePrefix,
+      //kNtGaaFlagIncludePrefix,
+      NULL, 
+      aa, 
+      &size);
+  if (rc != kNtErrorSuccess) {
+    efault();
+    goto err;
+  }
+  if (createHostInfo(aa) == -1) {
+    goto err;
+  }
+
+  weaken(free)(aa);
+  return 0;
+
+err:
+  if (aa) {
+    weaken(free)(aa);
+  }
+  freeHostInfo();
+  return -1;
+}
+
+textwindows int ioctl_siocgifconf_nt(int fd, struct ifconf *ifc) {
+  NtIpAdapterAddresses *aa;
+  struct HostAdapterInfoNode *node;
+  struct ifreq *ptr;
+
+  if (__hostInfo) {
+    freeHostInfo();
+  }
+
+  if (readAdapterAddresses() == -1) {
+    return -1;
+  }
+
+  for (ptr = ifc->ifc_req, node = __hostInfo;
+      (((char *)(ptr+1) - ifc->ifc_buf) < ifc->ifc_len) && node;
+      ptr++, node = node->next) {
+    memcpy(ptr->ifr_name, node->name, IFNAMSIZ);
+    memcpy(&ptr->ifr_addr, &node->unicast, sizeof(struct sockaddr));
+  }
+  ifc->ifc_len = (char *)ptr - ifc->ifc_buf;
+
+  return 0;
+}
+
+/* Performs the SIOCGIFADDR operation */
+int ioctl_siocgifaddr_nt(int fd, struct ifreq *ifr) {
+  struct HostAdapterInfoNode *node;
+
+  node = findAdapterByName(ifr->ifr_name);
+  if (!node) {
+    return ebadf();
+  }
+  memcpy(&ifr->ifr_addr, &node->unicast, sizeof(struct sockaddr));
+  return 0;
+}
+
+/* Performs the SIOCGIFFLAGS operation */
+int ioctl_siocgifflags_nt(int fd, struct ifreq *ifr) {
+  struct HostAdapterInfoNode *node;
+
+  node = findAdapterByName(ifr->ifr_name);
+  if (!node) {
+    return ebadf();
+  }
+  ifr->ifr_flags = node->flags;
+  return 0;
+}
+
+
+/* Performs the SIOCGIFNETMASK operation */
+int ioctl_siocgifnetmask_nt(int fd, struct ifreq *ifr) {
+  struct HostAdapterInfoNode *node;
+
+  node = findAdapterByName(ifr->ifr_name);
+  if (!node) {
+    return ebadf();
+  }
+  memcpy(&ifr->ifr_netmask, &node->netmask, sizeof(struct sockaddr));
+  return 0;
+}
+
+/* Performs the SIOCGIFBRDADDR operation */
+int ioctl_siocgifbrdaddr_nt(int fd, struct ifreq *ifr) {
+  struct HostAdapterInfoNode *node;
+
+  node = findAdapterByName(ifr->ifr_name);
+  if (!node) {
+    return ebadf();
+  }
+  memcpy(&ifr->ifr_broadaddr, &node->broadcast, sizeof(struct sockaddr));
+  return 0;
+}
+

libc/calls/ioctl-siocgifconf.c

@@ -0,0 +1,178 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/bits/weaken.h"
+#include "libc/sysv/errfuns.h"
+#include "libc/calls/internal.h"
+#include "libc/sock/sock.h"
+#include "libc/sock/internal.h"
+#include "libc/sysv/consts/sio.h"
+
+/* SIOCGIFCONF:
+ * Takes an struct ifconf object of a given size
+ * Modifies the following:
+ *  - ifc_len: set it to the number of valid ifreq structures representing
+ *    the interfaces
+ *  - ifc_ifcu.ifcu_req: sets the name of the interface for each interface
+ * The ifc_len is an input/output parameter: set it to the total size of 
+ * the ifcu_buf (ifcu_req) buffer on input.
+ */
+int ioctl_default(int, uint64_t, void *) hidden;
+int ioctl_siocgifconf_nt(int, struct ifconf *) hidden;
+int ioctl_siocgifaddr_nt(int, struct ifreq *) hidden;
+int ioctl_siocgifflags_nt(int, struct ifreq *) hidden;
+int ioctl_siocgifnetmask_nt(int, struct ifreq *) hidden;
+int ioctl_siocgifbrdaddr_nt(int, struct ifreq *) hidden;
+
+static int ioctl_siocgifconf_sysv(int fd, struct ifconf *ifc) {
+  if (IsBsd()) {
+    /* BSD uses a slightly different memory structure where:
+     * - sizeof(struct ifreq) is 32 bytes instead of 40 bytes
+     * - ifc.ifc_len is uint32_t instead of uint64_t
+     * - struct ifconf is #pragma pack(4) (instead of the default pack(8))
+     */
+    int i;
+    char *buf;      /* Temporary buffer to store ifreq */
+    char *pBsdReq;  /* Scan through buf records */
+    char *pBsdEnd;  /* End of the ifreq */
+
+    struct ifconf_bsd ifc_bsd;
+    struct ifreq_bsd *bsdReq;
+    struct ifreq *req;
+    size_t numReq = ifc->ifc_len / sizeof(struct ifreq);
+
+    if (!weaken(malloc)) {
+      return enomem();
+    } 
+    ifc_bsd.ifc_len = numReq * sizeof(struct ifreq_bsd);
+    buf = weaken(malloc)(ifc_bsd.ifc_len);
+    if (!buf) {
+      return enomem();
+    }
+    ifc_bsd.ifc_buf = buf;
+
+    if ((i = sys_ioctl(fd, SIOCGIFCONF, &ifc_bsd)) < 0) {
+      weaken(free)(buf);
+      return -1;
+    }
+
+    /* On BSD the size of the struct ifreq is different than Linux.
+     * On Linux is fixed (40 bytes), but on BSD the struct sockaddr
+     * has variable length, making the whole struct ifreq a variable
+     * sized record.
+     */
+    for (pBsdReq = buf, pBsdEnd = buf + ifc_bsd.ifc_len, req = ifc->ifc_req;
+        pBsdReq < pBsdEnd;
+        ++req) {
+      bsdReq = (struct ifreq_bsd *)pBsdReq;
+      memcpy(req->ifr_name, bsdReq->ifr_name, IFNAMSIZ);
+      memcpy(&req->ifr_addr, &bsdReq->ifr_addr, sizeof(struct sockaddr_bsd));
+      sockaddr2linux(&req->ifr_addr);
+
+      pBsdReq += IFNAMSIZ + bsdReq->ifr_addr.sa_len;
+    }
+
+    /* Adjust len */
+    ifc->ifc_len = (size_t)((char *)req - ifc->ifc_buf);
+    weaken(free)(buf);
+    return 0;
+
+  } else {
+    /* 100% compatible with Linux */
+    return sys_ioctl(fd, SIOCGIFCONF, ifc);
+  }
+}
+
+/* Used for all the ioctl that returns sockaddr structure that
+ * requires adjustment between Linux and BSD
+ */
+static int ioctl_siocgifaddr_sysv(int fd, uint64_t op, struct ifreq *ifr) {
+  int i;
+
+  if (IsBsd()) {
+    sockaddr2bsd(&ifr->ifr_addr);
+  }
+  if ((i = sys_ioctl(fd, op, ifr)) < 0) {
+    return -1;
+  }
+  if (IsBsd()) {
+    sockaddr2linux(&ifr->ifr_addr);
+  }
+  return 0;
+}
+
+/**
+ * Returns information about network interfaces.
+ *
+ * @see ioctl(fd, SIOCGIFCONF, tio) dispatches here
+ */
+int ioctl_siocgifconf(int fd, void *ifc) {
+  if (!IsWindows()) {
+    return ioctl_siocgifconf_sysv(fd, (struct ifconf *)ifc);
+  } else {
+    return ioctl_siocgifconf_nt(fd, ifc);
+  }
+}
+
+int ioctl_siocgifaddr(int fd, void *ifr) {
+  if (!IsWindows()) {
+    return ioctl_siocgifaddr_sysv(fd, SIOCGIFADDR, (struct ifreq *)ifr);
+  } else {
+    return ioctl_siocgifaddr_nt(fd, (struct ifreq *)ifr);
+  }
+}
+
+int ioctl_siocgifnetmask(int fd, void *ifr) {
+  if (!IsWindows()) {
+    return ioctl_siocgifaddr_sysv(fd, SIOCGIFNETMASK, (struct ifreq *)ifr);
+  } else {
+    return ioctl_siocgifnetmask_nt(fd, (struct ifreq *)ifr);
+  }
+}
+
+int ioctl_siocgifbrdaddr(int fd, void *ifr) {
+  if (!IsWindows()) {
+    return ioctl_siocgifaddr_sysv(fd, SIOCGIFBRDADDR, (struct ifreq *)ifr);
+  } else {
+    return ioctl_siocgifbrdaddr_nt(fd, (struct ifreq *)ifr);
+  }
+}
+
+int ioctl_siocgifdstaddr(int fd, void *ifr) {
+  if (!IsWindows()) {
+    return ioctl_siocgifaddr_sysv(fd, SIOCGIFDSTADDR, (struct ifreq *)ifr);
+  } else {
+    return enotsup();
+    /* Not supported - TODO: Find out how to retrieve the destination
+     * address of a PPP from the interface list returned by the
+     * GetAdaptersAddresses function
+     *
+    return ioctl_siocgifbrdaddr_nt(fd, ifc);
+
+     */
+  }
+}
+
+int ioctl_siocgifflags(int fd, void *ifr) {
+  if (!IsWindows()) {
+    /* Both BSD and Linux are for once compatible here... */
+    return ioctl_default(fd, SIOCGIFFLAGS, ifr);
+  } else {
+    return ioctl_siocgifflags_nt(fd, (struct ifreq *)ifr);
+  }
+}

libc/calls/ioctl.h

@@ -2,6 +2,7 @@
 #define COSMOPOLITAN_LIBC_CALLS_IOCTL_H_
 #include "libc/macros.internal.h"
 #include "libc/sysv/consts/termios.h"
+#include "libc/sysv/consts/sio.h"
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
@@ -27,8 +28,18 @@ int ioctl(int, uint64_t, void *);
     if (CMP(request, TCSETS)) return ioctl_tcsets(FD, REQUEST, MEMORY);  \
     if (CMP(request, TCSETSW)) return ioctl_tcsets(FD, REQUEST, MEMORY); \
     if (CMP(request, TCSETSF)) return ioctl_tcsets(FD, REQUEST, MEMORY); \
+    if (CMP(request, SIOCGIFCONF)) return ioctl_siocgifconf(FD, MEMORY); \
+    if (CMP(request, SIOCGIFADDR)) return ioctl_siocgifaddr(FD, MEMORY); \
+    if (CMP(request, SIOCGIFNETMASK)) return ioctl_siocgifnetmask(FD, MEMORY); \
+    if (CMP(request, SIOCGIFBRDADDR)) return ioctl_siocgifbrdaddr(FD, MEMORY); \
+    if (CMP(request, SIOCGIFDSTADDR)) return ioctl_siocgifdstaddr(FD, MEMORY); \
+    if (CMP(request, SIOCGIFFLAGS)) return ioctl_siocgifflags(FD, MEMORY); \
   } while (0)
 
+/*
+    if (CMP(request, SIOCGIFFLAGS)) return ioctl_siocgifflags(FD, REQUEST, MEMORY); \
+*/
+
 int ioctl_tcgets(int, void *);
 int ioctl_tcgets_nt(int, void *);
 int ioctl_tcsets(int, uint64_t, void *);
@@ -37,6 +48,12 @@ int ioctl_tiocgwinsz(int, void *);
 int ioctl_tiocgwinsz_nt(int, void *);
 int ioctl_tiocswinsz(int, void *);
 int ioctl_tiocswinsz_nt(int, void *);
+int ioctl_siocgifconf(int, void *);
+int ioctl_siocgifaddr(int, void *);
+int ioctl_siocgifdstaddr(int, void *);
+int ioctl_siocgifnetmask(int, void *);
+int ioctl_siocgifbrdaddr(int, void *);
+int ioctl_siocgifflags(int, void *);
 int ioctl_default(int, uint64_t, void *);
 
 forceinline int ioctl_dispatch(int fd, uint64_t request, void *memory) {

libc/nt/iphlpapi.h

@@ -0,0 +1,42 @@
+#ifndef COSMOPOLITAN_LIBC_NT_IPHLPAPI_H_
+#define COSMOPOLITAN_LIBC_NT_IPHLPAPI_H_
+
+#include "libc/nt/struct/ipadapteraddresses.h"
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+/*                            ░░░░
+                       ▒▒▒░░░▒▒▒▒▒▒▒▓▓▓░
+                      ▒▒▒▒░░░▒▒▒▒▒▒▓▓▓▓▓▓░
+                     ▒▒▒▒░░░▒▒▒▒▒▒▒▓▓▓▓▓▓  ▒▓░
+                     ▒▒▒░░░░▒▒▒▒▒▒▓▓▓▓▓▓   ▓▓▓▓▓▓▒        ▒▒▒▓▓█
+                    ▒▒▒▒░░░▒▒▒▒▒▒▒▓▓▓▓▓▓  ▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓▓
+                   ░▒▒▒░░░░▒▒▒▒▒▒▓▓▓▓▓▓   █▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓█
+                   ▒▒▒▒░░░▒▒▒▒▒▒▒▓▓▓▓▓░  ▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓▓
+                  ▒▒▒▒░░░▒▒▒▒▒▒▒▓▓▓▓▓▓  ▒▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓▒
+                  ▒▒▒▒▓▓      ▓▒▒▓▓▓▓   ▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓█
+                                   ▒▓  ▓▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓
+                  ░░░░░░░░░░░▒▒▒▒      ▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓█
+                ▒▒░░░░░░░░░░▒▒▒▒▒▓▓▓     ▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓▓
+               ░▒░░░░░░░░░░░▒▒▒▒▒▓▓   ▓░      ░▓███▓
+               ▒▒░░░░░░░░░░▒▒▒▒▒▓▓░  ▒▓▓▓▒▒▒         ░▒▒▒▓   ████████████
+              ▒▒░░░░░░░░░░░▒▒▒▒▒▓▓  ▒▓▓▓▓▒▒▒▒▒▒▒▒░░░▒▒▒▒▒░           ░███
+              ▒░░░░░░░░░░░▒▒▒▒▒▓▓   ▓▓▓▓▒▒▒▒▒▒▒▒░░░░▒▒▒▒▓            ███
+             ▒▒░░░░░░░░░░▒▒▒▒▒▒▓▓  ▒▓▓▓▒▒▒▒▒▒▒▒░░░░▒▒▒▒▒            ▓██
+             ▒░░░░░░░░░░░▒▒▒▒▒▓▓   ▓▓▓▓▒▒▒▒▒▒▒▒░░░▒▒▒▒▒▓           ▓██
+            ▒▒░░░▒▒▒░░░▒▒░▒▒▒▓▓▒  ▒▓▓▓▒▒▒▒▒▒▒▒░░░░▒▒▒▒▒           ███
+                            ░▒▓  ░▓▓▓▓▒▒▒▒▒▒▒▒░░░░▒▒▒▒▓          ▓██
+╔────────────────────────────────────────────────────────────────▀▀▀─────────│─╗
+│ cosmopolitan § new technology » ip helper API                            ─╬─│┼
+╚────────────────────────────────────────────────────────────────────────────│*/
+
+uint32_t GetAdaptersAddresses(
+        uint32_t Family, 
+        uint32_t Flags,
+        void * Reserved,
+        NtIpAdapterAddresses *AdapterAddresses,
+        uint32_t *SizePointer);
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+
+#endif /* COSMOPOLITAN_LIBC_NT_IPHLPAPI_H_ */

libc/nt/iphlpapi/AddIPAddress.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_AddIPAddress,AddIPAddress,0
+
+	.text.windows
+AddIPAddress:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_AddIPAddress(%rip),%rax
+	jmp	__sysv2nt6
+	.endfn	AddIPAddress,globl
+	.previous

libc/nt/iphlpapi/AllocateAndGetTcpExTableFromStack.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_AllocateAndGetTcpExTableFromStack,AllocateAndGetTcpExTableFromStack,0
+
+	.text.windows
+AllocateAndGetTcpExTableFromStack:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_AllocateAndGetTcpExTableFromStack(%rip),%rax
+	jmp	__sysv2nt6
+	.endfn	AllocateAndGetTcpExTableFromStack,globl
+	.previous

libc/nt/iphlpapi/AllocateAndGetUdpExTableFromStack.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_AllocateAndGetUdpExTableFromStack,AllocateAndGetUdpExTableFromStack,0
+
+	.text.windows
+AllocateAndGetUdpExTableFromStack:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_AllocateAndGetUdpExTableFromStack(%rip),%rax
+	jmp	__sysv2nt6
+	.endfn	AllocateAndGetUdpExTableFromStack,globl
+	.previous

libc/nt/iphlpapi/CancelIPChangeNotify.s

@@ -0,0 +1,15 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CancelIPChangeNotify,CancelIPChangeNotify,0
+
+	.text.windows
+CancelIPChangeNotify:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	%rdi,%rcx
+	sub	$32,%rsp
+	call	*__imp_CancelIPChangeNotify(%rip)
+	leave
+	ret
+	.endfn	CancelIPChangeNotify,globl
+	.previous

libc/nt/iphlpapi/CaptureInterfaceHardwareCrossTimestamp.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CaptureInterfaceHardwareCrossTimestamp,CaptureInterfaceHardwareCrossTimestamp,0
+
+	.text.windows
+CaptureInterfaceHardwareCrossTimestamp:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_CaptureInterfaceHardwareCrossTimestamp(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	CaptureInterfaceHardwareCrossTimestamp,globl
+	.previous

libc/nt/iphlpapi/CreateIpForwardEntry.s

@@ -0,0 +1,15 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CreateIpForwardEntry,CreateIpForwardEntry,0
+
+	.text.windows
+CreateIpForwardEntry:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	%rdi,%rcx
+	sub	$32,%rsp
+	call	*__imp_CreateIpForwardEntry(%rip)
+	leave
+	ret
+	.endfn	CreateIpForwardEntry,globl
+	.previous

libc/nt/iphlpapi/CreateIpNetEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CreateIpNetEntry,CreateIpNetEntry,0

libc/nt/iphlpapi/CreatePersistentTcpPortReservation.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CreatePersistentTcpPortReservation,CreatePersistentTcpPortReservation,0

libc/nt/iphlpapi/CreatePersistentUdpPortReservation.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CreatePersistentUdpPortReservation,CreatePersistentUdpPortReservation,0

libc/nt/iphlpapi/CreateProxyArpEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_CreateProxyArpEntry,CreateProxyArpEntry,0

libc/nt/iphlpapi/DeleteIPAddress.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DeleteIPAddress,DeleteIPAddress,0

libc/nt/iphlpapi/DeleteIpForwardEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DeleteIpForwardEntry,DeleteIpForwardEntry,0

libc/nt/iphlpapi/DeleteIpNetEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DeleteIpNetEntry,DeleteIpNetEntry,0

libc/nt/iphlpapi/DeletePersistentTcpPortReservation.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DeletePersistentTcpPortReservation,DeletePersistentTcpPortReservation,0

libc/nt/iphlpapi/DeletePersistentUdpPortReservation.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DeletePersistentUdpPortReservation,DeletePersistentUdpPortReservation,0

libc/nt/iphlpapi/DeleteProxyArpEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DeleteProxyArpEntry,DeleteProxyArpEntry,0

libc/nt/iphlpapi/DisableMediaSense.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_DisableMediaSense,DisableMediaSense,0

libc/nt/iphlpapi/EnableRouter.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_EnableRouter,EnableRouter,0

libc/nt/iphlpapi/FlushIpNetTable.s

@@ -0,0 +1,15 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_FlushIpNetTable,FlushIpNetTable,0
+
+	.text.windows
+FlushIpNetTable:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	%rdi,%rcx
+	sub	$32,%rsp
+	call	*__imp_FlushIpNetTable(%rip)
+	leave
+	ret
+	.endfn	FlushIpNetTable,globl
+	.previous

libc/nt/iphlpapi/GetAdapterIndex.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetAdapterIndex,GetAdapterIndex,0
+
+	.text.windows
+GetAdapterIndex:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetAdapterIndex(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetAdapterIndex,globl
+	.previous

libc/nt/iphlpapi/GetAdapterOrderMap.s

@@ -0,0 +1,14 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetAdapterOrderMap,GetAdapterOrderMap,0
+
+	.text.windows
+GetAdapterOrderMap:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	sub	$32,%rsp
+	call	*__imp_GetAdapterOrderMap(%rip)
+	leave
+	ret
+	.endfn	GetAdapterOrderMap,globl
+	.previous

libc/nt/iphlpapi/GetAdaptersAddresses.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetAdaptersAddresses,GetAdaptersAddresses,67
+
+	.text.windows
+GetAdaptersAddresses:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetAdaptersAddresses(%rip),%rax
+	jmp	__sysv2nt6
+	.endfn	GetAdaptersAddresses,globl
+	.previous

libc/nt/iphlpapi/GetAdaptersInfo.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetAdaptersInfo,GetAdaptersInfo,0
+
+	.text.windows
+GetAdaptersInfo:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetAdaptersInfo(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetAdaptersInfo,globl
+	.previous

libc/nt/iphlpapi/GetBestInterface.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetBestInterface,GetBestInterface,0
+
+	.text.windows
+GetBestInterface:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetBestInterface(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetBestInterface,globl
+	.previous

libc/nt/iphlpapi/GetBestInterfaceEx.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetBestInterfaceEx,GetBestInterfaceEx,0
+
+	.text.windows
+GetBestInterfaceEx:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetBestInterfaceEx(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetBestInterfaceEx,globl
+	.previous

libc/nt/iphlpapi/GetBestRoute.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetBestRoute,GetBestRoute,0
+
+	.text.windows
+GetBestRoute:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetBestRoute(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetBestRoute,globl
+	.previous

libc/nt/iphlpapi/GetExtendedTcpTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetExtendedTcpTable,GetExtendedTcpTable,0

libc/nt/iphlpapi/GetExtendedUdpTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetExtendedUdpTable,GetExtendedUdpTable,0

libc/nt/iphlpapi/GetFriendlyIfIndex.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetFriendlyIfIndex,GetFriendlyIfIndex,0

libc/nt/iphlpapi/GetIcmpStatistics.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIcmpStatistics,GetIcmpStatistics,0

libc/nt/iphlpapi/GetIcmpStatisticsEx.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIcmpStatisticsEx,GetIcmpStatisticsEx,0

libc/nt/iphlpapi/GetIfEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIfEntry,GetIfEntry,0

libc/nt/iphlpapi/GetIfTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIfTable,GetIfTable,0

libc/nt/iphlpapi/GetInterfaceActiveTimestampCapabilities.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetInterfaceActiveTimestampCapabilities,GetInterfaceActiveTimestampCapabilities,0

libc/nt/iphlpapi/GetInterfaceInfo.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetInterfaceInfo,GetInterfaceInfo,0

libc/nt/iphlpapi/GetInterfaceSupportedTimestampCapabilities.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetInterfaceSupportedTimestampCapabilities,GetInterfaceSupportedTimestampCapabilities,0

libc/nt/iphlpapi/GetIpAddrTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIpAddrTable,GetIpAddrTable,0

libc/nt/iphlpapi/GetIpErrorString.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIpErrorString,GetIpErrorString,0

libc/nt/iphlpapi/GetIpForwardTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIpForwardTable,GetIpForwardTable,0

libc/nt/iphlpapi/GetIpNetTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIpNetTable,GetIpNetTable,0

libc/nt/iphlpapi/GetIpStatistics.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIpStatistics,GetIpStatistics,0

libc/nt/iphlpapi/GetIpStatisticsEx.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetIpStatisticsEx,GetIpStatisticsEx,0

libc/nt/iphlpapi/GetNetworkParams.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetNetworkParams,GetNetworkParams,0

libc/nt/iphlpapi/GetNumberOfInterfaces.s

@@ -0,0 +1,15 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetNumberOfInterfaces,GetNumberOfInterfaces,0
+
+	.text.windows
+GetNumberOfInterfaces:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	%rdi,%rcx
+	sub	$32,%rsp
+	call	*__imp_GetNumberOfInterfaces(%rip)
+	leave
+	ret
+	.endfn	GetNumberOfInterfaces,globl
+	.previous

libc/nt/iphlpapi/GetOwnerModuleFromTcp6Entry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetOwnerModuleFromTcp6Entry,GetOwnerModuleFromTcp6Entry,0

libc/nt/iphlpapi/GetOwnerModuleFromTcpEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetOwnerModuleFromTcpEntry,GetOwnerModuleFromTcpEntry,0

libc/nt/iphlpapi/GetOwnerModuleFromUdp6Entry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetOwnerModuleFromUdp6Entry,GetOwnerModuleFromUdp6Entry,0

libc/nt/iphlpapi/GetOwnerModuleFromUdpEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetOwnerModuleFromUdpEntry,GetOwnerModuleFromUdpEntry,0

libc/nt/iphlpapi/GetPerAdapterInfo.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetPerAdapterInfo,GetPerAdapterInfo,0

libc/nt/iphlpapi/GetPerTcp6ConnectionEStats.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetPerTcp6ConnectionEStats,GetPerTcp6ConnectionEStats,0

libc/nt/iphlpapi/GetPerTcpConnectionEStats.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetPerTcpConnectionEStats,GetPerTcpConnectionEStats,0

libc/nt/iphlpapi/GetRTTAndHopCount.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetRTTAndHopCount,GetRTTAndHopCount,0

libc/nt/iphlpapi/GetTcp6Table.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcp6Table,GetTcp6Table,0

libc/nt/iphlpapi/GetTcp6Table2.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcp6Table2,GetTcp6Table2,0

libc/nt/iphlpapi/GetTcpStatistics.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcpStatistics,GetTcpStatistics,0

libc/nt/iphlpapi/GetTcpStatisticsEx.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcpStatisticsEx,GetTcpStatisticsEx,0

libc/nt/iphlpapi/GetTcpStatisticsEx2.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcpStatisticsEx2,GetTcpStatisticsEx2,0

libc/nt/iphlpapi/GetTcpTable.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcpTable,GetTcpTable,0
+
+	.text.windows
+GetTcpTable:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetTcpTable(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetTcpTable,globl
+	.previous

libc/nt/iphlpapi/GetTcpTable2.s

@@ -0,0 +1,12 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetTcpTable2,GetTcpTable2,0
+
+	.text.windows
+GetTcpTable2:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_GetTcpTable2(%rip),%rax
+	jmp	__sysv2nt
+	.endfn	GetTcpTable2,globl
+	.previous

libc/nt/iphlpapi/GetUdp6Table.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetUdp6Table,GetUdp6Table,0

libc/nt/iphlpapi/GetUdpStatistics.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetUdpStatistics,GetUdpStatistics,0

libc/nt/iphlpapi/GetUdpStatisticsEx.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetUdpStatisticsEx,GetUdpStatisticsEx,0

libc/nt/iphlpapi/GetUdpStatisticsEx2.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetUdpStatisticsEx2,GetUdpStatisticsEx2,0

libc/nt/iphlpapi/GetUdpTable.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetUdpTable,GetUdpTable,0

libc/nt/iphlpapi/GetUniDirectionalAdapterInfo.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_GetUniDirectionalAdapterInfo,GetUniDirectionalAdapterInfo,0

libc/nt/iphlpapi/IpReleaseAddress.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_IpReleaseAddress,IpReleaseAddress,0

libc/nt/iphlpapi/IpRenewAddress.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_IpRenewAddress,IpRenewAddress,0

libc/nt/iphlpapi/LookupPersistentTcpPortReservation.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_LookupPersistentTcpPortReservation,LookupPersistentTcpPortReservation,0

libc/nt/iphlpapi/LookupPersistentUdpPortReservation.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_LookupPersistentUdpPortReservation,LookupPersistentUdpPortReservation,0

libc/nt/iphlpapi/NhpAllocateAndGetInterfaceInfoFromStack.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_NhpAllocateAndGetInterfaceInfoFromStack,NhpAllocateAndGetInterfaceInfoFromStack,0

libc/nt/iphlpapi/NotifyAddrChange.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_NotifyAddrChange,NotifyAddrChange,0

libc/nt/iphlpapi/NotifyRouteChange.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_NotifyRouteChange,NotifyRouteChange,0

libc/nt/iphlpapi/ParseNetworkString.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_ParseNetworkString,ParseNetworkString,0

libc/nt/iphlpapi/RegisterInterfaceTimestampConfigChange.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_RegisterInterfaceTimestampConfigChange,RegisterInterfaceTimestampConfigChange,0

libc/nt/iphlpapi/ResolveNeighbor.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_ResolveNeighbor,ResolveNeighbor,0

libc/nt/iphlpapi/RestoreMediaSense.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_RestoreMediaSense,RestoreMediaSense,0

libc/nt/iphlpapi/SendARP.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SendARP,SendARP,0

libc/nt/iphlpapi/SetIfEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetIfEntry,SetIfEntry,0

libc/nt/iphlpapi/SetIpForwardEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetIpForwardEntry,SetIpForwardEntry,0

libc/nt/iphlpapi/SetIpNetEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetIpNetEntry,SetIpNetEntry,0

libc/nt/iphlpapi/SetIpStatistics.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetIpStatistics,SetIpStatistics,0

libc/nt/iphlpapi/SetIpStatisticsEx.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetIpStatisticsEx,SetIpStatisticsEx,0

libc/nt/iphlpapi/SetIpTTL.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetIpTTL,SetIpTTL,0

libc/nt/iphlpapi/SetPerTcp6ConnectionEStats.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetPerTcp6ConnectionEStats,SetPerTcp6ConnectionEStats,0

libc/nt/iphlpapi/SetPerTcpConnectionEStats.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetPerTcpConnectionEStats,SetPerTcpConnectionEStats,0

libc/nt/iphlpapi/SetTcpEntry.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_SetTcpEntry,SetTcpEntry,0

libc/nt/iphlpapi/UnenableRouter.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_UnenableRouter,UnenableRouter,0

libc/nt/iphlpapi/UnregisterInterfaceTimestampConfigChange.s

@@ -0,0 +1,2 @@
+.include "o/libc/nt/codegen.inc"
+.imp	iphlpapi,__imp_UnregisterInterfaceTimestampConfigChange,UnregisterInterfaceTimestampConfigChange,0

libc/nt/kernel32/WideCharToMultiByte.s

@@ -1,2 +1,12 @@
 .include "o/libc/nt/codegen.inc"
-.imp	kernel32,__imp_WideCharToMultiByte,WideCharToMultiByte,0
+.imp	kernel32,__imp_WideCharToMultiByte,WideCharToMultiByte,1553
+
+	.text.windows
+WideCharToMultiByte:
+	push	%rbp
+	mov	%rsp,%rbp
+	.profilable
+	mov	__imp_WideCharToMultiByte(%rip),%rax
+	jmp	__sysv2nt8
+	.endfn	WideCharToMultiByte,globl
+	.previous

libc/nt/master.sh

@@ -7093,7 +7093,7 @@ imp	'WerpNotifyLoadStringResource'				WerpNotifyLoadStringResource				KernelBase
 imp	'WerpNotifyLoadStringResourceWorker'			WerpNotifyLoadStringResourceWorker			kernel32	1540
 imp	'WerpNotifyUseStringResource'				WerpNotifyUseStringResource				KernelBase	1809
 imp	'WerpNotifyUseStringResourceWorker'			WerpNotifyUseStringResourceWorker			kernel32	1541
-imp	'WideCharToMultiByte'					WideCharToMultiByte					kernel32	0		# KernelBase
+imp	'WideCharToMultiByte'					WideCharToMultiByte					kernel32	1553    8
 imp	'WidenPath'						WidenPath						gdi32		1941
 imp	'Win32DeleteFile'					Win32DeleteFile						shell32		164
 imp	'WinExec'						WinExec							kernel32	1543
@@ -7797,3 +7797,92 @@ imp	'ReleaseSRWLockExclusive'				ReleaseSRWLockExclusive					kernel32	0	1	# Kern
 imp	'ReleaseSRWLockShared'					ReleaseSRWLockShared					kernel32	0	1	# KernelBase
 imp	'TryAcquireSRWLockExclusive'				TryAcquireSRWLockExclusive				kernel32	0	1	# KernelBase
 imp	'TryAcquireSRWLockShared'				TryAcquireSRWLockShared					kernel32	0	1	# KernelBase
+
+imp	'AddIPAddress'						AddIPAddress						iphlpapi	0	5
+imp	'AllocateAndGetTcpExTableFromStack'			AllocateAndGetTcpExTableFromStack			iphlpapi	0	5
+imp	'AllocateAndGetUdpExTableFromStack'			AllocateAndGetUdpExTableFromStack			iphlpapi	0	5
+imp	'CancelIPChangeNotify'					CancelIPChangeNotify					iphlpapi	0	1
+imp	'CaptureInterfaceHardwareCrossTimestamp'		CaptureInterfaceHardwareCrossTimestamp			iphlpapi	0	2
+imp	'CreateIpForwardEntry'					CreateIpForwardEntry					iphlpapi	0	1
+imp	'CreateIpNetEntry'					CreateIpNetEntry					iphlpapi	0	
+imp	'CreatePersistentTcpPortReservation'			CreatePersistentTcpPortReservation			iphlpapi	0	
+imp	'CreatePersistentUdpPortReservation'			CreatePersistentUdpPortReservation			iphlpapi	0	
+imp	'CreateProxyArpEntry'					CreateProxyArpEntry					iphlpapi	0	
+imp	'DeleteIPAddress'					DeleteIPAddress						iphlpapi	0	
+imp	'DeleteIpForwardEntry'					DeleteIpForwardEntry					iphlpapi	0	
+imp	'DeleteIpNetEntry'					DeleteIpNetEntry					iphlpapi	0	
+imp	'DeletePersistentTcpPortReservation'			DeletePersistentTcpPortReservation			iphlpapi	0	
+imp	'DeletePersistentUdpPortReservation'			DeletePersistentUdpPortReservation			iphlpapi	0	
+imp	'DeleteProxyArpEntry'					DeleteProxyArpEntry					iphlpapi	0	
+imp	'DisableMediaSense'					DisableMediaSense					iphlpapi	0	
+imp	'EnableRouter'						EnableRouter						iphlpapi	0	
+imp	'FlushIpNetTable'					FlushIpNetTable						iphlpapi	0	1
+imp	'GetAdapterIndex'					GetAdapterIndex						iphlpapi	0	2
+imp	'GetAdapterOrderMap'					GetAdapterOrderMap					iphlpapi	0	0
+imp     'GetAdaptersAddresses'                                  GetAdaptersAddresses                                    iphlpapi        67      5
+imp	'GetAdaptersInfo'					GetAdaptersInfo						iphlpapi	0	2
+imp	'GetBestInterface'					GetBestInterface					iphlpapi	0	2
+imp	'GetBestInterfaceEx'					GetBestInterfaceEx					iphlpapi	0	2
+imp	'GetBestRoute'						GetBestRoute						iphlpapi	0	3
+imp	'GetExtendedTcpTable'					GetExtendedTcpTable					iphlpapi	0	
+imp	'GetExtendedUdpTable'					GetExtendedUdpTable					iphlpapi	0	
+imp	'GetFriendlyIfIndex'					GetFriendlyIfIndex					iphlpapi	0	
+imp	'GetIcmpStatistics'					GetIcmpStatistics					iphlpapi	0	
+imp	'GetIcmpStatisticsEx'					GetIcmpStatisticsEx					iphlpapi	0	
+imp	'GetIfEntry'						GetIfEntry						iphlpapi	0	
+imp	'GetIfTable'						GetIfTable						iphlpapi	0	
+imp	'GetInterfaceActiveTimestampCapabilities'		GetInterfaceActiveTimestampCapabilities			iphlpapi	0	
+imp	'GetInterfaceInfo'					GetInterfaceInfo					iphlpapi	0	
+imp	'GetInterfaceSupportedTimestampCapabilities'		GetInterfaceSupportedTimestampCapabilities		iphlpapi	0	
+imp	'GetIpAddrTable'					GetIpAddrTable						iphlpapi	0	
+imp	'GetIpErrorString'					GetIpErrorString					iphlpapi	0	
+imp	'GetIpForwardTable'					GetIpForwardTable					iphlpapi	0	
+imp	'GetIpNetTable'						GetIpNetTable						iphlpapi	0	
+imp	'GetIpStatistics'					GetIpStatistics						iphlpapi	0	
+imp	'GetIpStatisticsEx'					GetIpStatisticsEx					iphlpapi	0	
+imp	'GetNetworkParams'					GetNetworkParams					iphlpapi	0	
+imp	'GetNumberOfInterfaces'					GetNumberOfInterfaces					iphlpapi	0	1
+imp	'GetOwnerModuleFromTcp6Entry'				GetOwnerModuleFromTcp6Entry				iphlpapi	0	
+imp	'GetOwnerModuleFromTcpEntry'				GetOwnerModuleFromTcpEntry				iphlpapi	0	
+imp	'GetOwnerModuleFromUdp6Entry'				GetOwnerModuleFromUdp6Entry				iphlpapi	0	
+imp	'GetOwnerModuleFromUdpEntry'				GetOwnerModuleFromUdpEntry				iphlpapi	0	
+imp	'GetPerAdapterInfo'					GetPerAdapterInfo					iphlpapi	0	
+imp	'GetPerTcp6ConnectionEStats'				GetPerTcp6ConnectionEStats				iphlpapi	0	
+imp	'GetPerTcpConnectionEStats'				GetPerTcpConnectionEStats				iphlpapi	0	
+imp	'GetRTTAndHopCount'					GetRTTAndHopCount					iphlpapi	0	
+imp	'GetTcp6Table'						GetTcp6Table						iphlpapi	0	
+imp	'GetTcp6Table2'						GetTcp6Table2						iphlpapi	0	
+imp	'GetTcpStatistics'					GetTcpStatistics					iphlpapi	0	
+imp	'GetTcpStatisticsEx'					GetTcpStatisticsEx					iphlpapi	0	
+imp	'GetTcpStatisticsEx2'					GetTcpStatisticsEx2					iphlpapi	0	
+imp	'GetTcpTable'						GetTcpTable						iphlpapi	0	3
+imp	'GetTcpTable2'						GetTcpTable2						iphlpapi	0	3
+imp	'GetUdp6Table'						GetUdp6Table						iphlpapi	0	
+imp	'GetUdpStatistics'					GetUdpStatistics					iphlpapi	0	
+imp	'GetUdpStatisticsEx'					GetUdpStatisticsEx					iphlpapi	0	
+imp	'GetUdpStatisticsEx2'					GetUdpStatisticsEx2					iphlpapi	0	
+imp	'GetUdpTable'						GetUdpTable						iphlpapi	0	
+imp	'GetUniDirectionalAdapterInfo'				GetUniDirectionalAdapterInfo				iphlpapi	0	
+imp	'IpReleaseAddress'					IpReleaseAddress					iphlpapi	0	
+imp	'IpRenewAddress'					IpRenewAddress						iphlpapi	0	
+imp	'LookupPersistentTcpPortReservation'			LookupPersistentTcpPortReservation			iphlpapi	0	
+imp	'LookupPersistentUdpPortReservation'			LookupPersistentUdpPortReservation			iphlpapi	0	
+imp	'NhpAllocateAndGetInterfaceInfoFromStack'		NhpAllocateAndGetInterfaceInfoFromStack			iphlpapi	0	
+imp	'NotifyAddrChange'					NotifyAddrChange					iphlpapi	0	
+imp	'NotifyRouteChange'					NotifyRouteChange					iphlpapi	0	
+imp	'ParseNetworkString'					ParseNetworkString					iphlpapi	0	
+imp	'RegisterInterfaceTimestampConfigChange'		RegisterInterfaceTimestampConfigChange			iphlpapi	0	
+imp	'ResolveNeighbor'					ResolveNeighbor						iphlpapi	0	
+imp	'RestoreMediaSense'					RestoreMediaSense					iphlpapi	0	
+imp	'SendARP'						SendARP							iphlpapi	0	
+imp	'SetIfEntry'						SetIfEntry						iphlpapi	0	
+imp	'SetIpForwardEntry'					SetIpForwardEntry					iphlpapi	0	
+imp	'SetIpNetEntry'						SetIpNetEntry						iphlpapi	0	
+imp	'SetIpStatistics'					SetIpStatistics						iphlpapi	0	
+imp	'SetIpStatisticsEx'					SetIpStatisticsEx					iphlpapi	0	
+imp	'SetIpTTL'						SetIpTTL						iphlpapi	0	
+imp	'SetPerTcp6ConnectionEStats'				SetPerTcp6ConnectionEStats				iphlpapi	0	
+imp	'SetPerTcpConnectionEStats'				SetPerTcpConnectionEStats				iphlpapi	0	
+imp	'SetTcpEntry'						SetTcpEntry						iphlpapi	0	
+imp	'UnenableRouter'					UnenableRouter						iphlpapi	0	
+imp	'UnregisterInterfaceTimestampConfigChange'		UnregisterInterfaceTimestampConfigChange		iphlpapi	0	

libc/nt/nt.mk

@@ -252,6 +252,27 @@ $(LIBC_NT_WS2_32_A).pkg:				\
 
 #───────────────────────────────────────────────────────────────────────────────
 
+LIBC_NT_ARTIFACTS += LIBC_NT_IPHLPAPI_A
+LIBC_NT_IPHLPAPI = $(LIBC_NT_IPHLPAPI_A_DEPS) $(LIBC_NT_IPHLPAPI_A)
+LIBC_NT_IPHLPAPI_A = o/$(MODE)/libc/nt/iphlpapi.a
+LIBC_NT_IPHLPAPI_A_SRCS := $(wildcard libc/nt/iphlpapi/*.s)
+LIBC_NT_IPHLPAPI_A_OBJS = $(LIBC_NT_IPHLPAPI_A_SRCS:%.s=o/$(MODE)/%.o)
+LIBC_NT_IPHLPAPI_A_CHECKS = $(LIBC_IPHLPAPI_32_A).pkg
+LIBC_NT_IPHLPAPI_A_DIRECTDEPS = LIBC_NT_KERNEL32
+LIBC_NT_IPHLPAPI_A_DEPS :=				\
+	$(call uniq,$(foreach x,$(LIBC_NT_IPHLPAPI_A_DIRECTDEPS),$($(x))))
+
+$(LIBC_NT_IPHLPAPI_A):					\
+		libc/nt/iphlpapi/			\
+		$(LIBC_NT_IPHLPAPI_A).pkg		\
+		$(LIBC_NT_IPHLPAPI_A_OBJS)
+
+$(LIBC_NT_IPHLPAPI_A).pkg:				\
+		$(LIBC_NT_IPHLPAPI_A_OBJS)		\
+		$(foreach x,$(LIBC_NT_IPHLPAPI_A_DIRECTDEPS),$($(x)_A).pkg)
+
+#───────────────────────────────────────────────────────────────────────────────
+
 LIBC_NT_ARTIFACTS += LIBC_NT_MSWSOCK_A
 LIBC_NT_MSWSOCK = $(LIBC_NT_MSWSOCK_A_DEPS) $(LIBC_NT_MSWSOCK_A)
 LIBC_NT_MSWSOCK_A = o/$(MODE)/libc/nt/MsWSock.a

libc/nt/struct/ipadapteraddresses.h

@@ -0,0 +1,291 @@
+#ifndef COSMOPOLITAN_LIBC_NT_STRUCT_IP_ADAPTER_ADDRESSES_H_
+#define COSMOPOLITAN_LIBC_NT_STRUCT_IP_ADAPTER_ADDRESSES_H_
+
+#include "libc/nt/winsock.h"
+
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+/* Constants ----------------------------------------------------------- */
+#define kNtMaxAdapterAddressLength              8
+#define kNtMaxDnsSuffixStringLength             256
+#define kNtMaxDhcpv6DuidLength                  130
+
+/* Values for the 'Flags' parameter of GetAdaptersAddresses */
+#define kNtGaaFlagSkipUnicast               0x0001
+#define kNtGaaFlagSkipAnycast               0x0002
+#define kNtGaaFlagSkipMulticast             0x0004
+#define kNtGaaFlagSkipDnsServer             0x0008
+#define kNtGaaFlagIncludePrefix             0x0010
+#define kNtGaaFlagSkipFriendlyName          0x0020
+#define kNtGaaFlagIncludeWinsInfo           0x0040
+#define kNtGaaFlagIncludeGateways           0x0080
+#define kNtGaaFlagIncludeAllInterfaces      0x0100
+#define kNtGaaFlagIncludeAllCompartments    0x0200
+#define kNtGaaFlagIncludeTunnelBindingorder 0x0400
+#define kNtGaaFlagSkipDnsInfo               0x0800
+
+/* Values for the IfType parameter
+ * See: https://docs.microsoft.com/en-us/windows/win32/api/iptypes/ns-iptypes-ip_adapter_addresses_lh
+ */
+#define kNtIfTypeOther             1
+#define kNtIfTypeEthernetCsmacd    6
+#define kNtIfTypeIso88025Tokenring 9
+#define kNtIfTypePpp               23
+#define kNtIfTypeSoftwareLoopback  24
+#define kNtIfTypeAtm               37
+#define kNtIfTypeIeee80211         71 /* wifi */
+#define kNtIfTypeTunnel            131
+#define kNtIfTypeIeee1394          144 /* firewire */
+
+
+/* Enums --------------------------------------------------------------- */
+typedef enum  {
+  kNtIpPrefixOriginOther,
+  kNtIpPrefixOriginManual,
+  kNtIpPrefixOriginWellKnown,
+  kNtIpPrefixOriginDhcp,
+  kNtIpPrefixOriginRouterAdvertisement,
+  kNtIpPrefixOriginUnchanged
+} NtPrefixOrigin;
+
+typedef enum  {
+  kNtNlsoOther,
+  kNtNlsoManual,
+  kNtNlsoWellKnown,
+  kNtNlsoDhcp,
+  kNtNlsoLinkLayerAddress,
+  kNtNlsoRandom,
+  kNtIpSuffixOriginOther,
+  kNtIpSuffixOriginManual,
+  kNtIpSuffixOriginWellKnown,
+  kNtIpSuffixOriginDhcp,
+  kNtIpSuffixOriginLinkLayerAddress,
+  kNtIpSuffixOriginRandom,
+  kNtIpSuffixOriginUnchanged
+} NtSuffixOrigin;
+
+typedef enum  {
+  kNtNldsInvalid,
+  kNtNldsTentative,
+  kNtNldsDuplicate,
+  kNtNldsDeprecated,
+  kNtNldsPreferred,
+  kNtIpDadStateInvalid,
+  kNtIpDadStateTentative,
+  kNtIpDadStateDuplicate,
+  kNtIpDadStateDeprecated,
+  kNtIpDadStatePreferred
+} NtDadState;
+
+typedef enum {
+  kNtIfOperStatusUp = 1,
+  kNtIfOperStatusDown,
+  kNtIfOperStatusTesting,
+  kNtIfOperStatusUnknown,
+  kNtIfOperStatusDormant,
+  kNtIfOperStatusNotPresent,
+  kNtIfOperStatusLowerLayerDown
+} NtIfOperStatus;
+
+typedef enum {
+ kNtNetIfConnectionDedicated = 1,
+ kNtNetIfConnectionPassive = 2,
+ kNtNetIfConnectionDemand = 3,
+ kNtNetIfConnectionMaximum = 4
+} NtNetIfConnectionType;
+
+typedef enum {
+  kNtTunnelTypeNone = 0,
+  kNtTunnelTypeOther = 1,
+  kNtTunnelTypeDirect = 2,
+  kNtTunnelType6to4 = 11,
+  kNtTunnelTypeIsatap = 13,
+  kNtTunnelTypeTeredo = 14,
+  kNtTunnelTypeIphttps = 15
+} NtTunnelType;
+
+
+/* Inner Types --------------------------------------------------------- */
+typedef struct _NtIpAdapterUnicastAddress {
+  union {
+    uint64_t Alignment;
+    struct {
+      uint32_t Length;
+      uint32_t Flags;
+    };
+  };
+  struct _NtIpAdapterUnicastAddress *   Next;
+  struct NtSocketAddress                Address;
+  NtPrefixOrigin                        PrefixOrigin;
+  NtSuffixOrigin                        SuffixOrigin;
+  NtDadState                            DadState;
+  uint32_t                              ValidLifetime;
+  uint32_t                              PreferredLifetime;
+  uint32_t                              LeaseLifetime;
+  uint8_t                               OnLinkPrefixLength;
+} NtIpAdapterUnicastAddress;
+
+typedef struct NtIpAdapterAnycastAddress {
+  union {
+    uint64_t Alignment;
+    struct {
+      uint32_t Length;
+      uint32_t Flags;
+    };
+  };
+  struct _NtIpAdapterAnycastAddress *Next;
+  struct NtSocketAddress             Address;
+} NtIpAdapterAnycastAddress;
+
+typedef struct NtIpAdapterMulticastAddress {
+  union {
+    uint64_t Alignment;
+    struct {
+      uint32_t Length;
+      uint32_t Flags;
+    };
+  };
+  struct _NtIpAdapterMulticastAddress *Next;
+  struct NtSocketAddress               Address;
+} NtIpAdapterMulticastAddress;
+
+
+typedef struct _NtIpAdapterDnsServerAddress {
+  union {
+    uint64_t Alignment;
+    struct {
+      uint32_t Length;
+      uint32_t Reserved;
+    };
+  };
+  struct _NtIpAdapterDnsServerAddress *Next;
+  struct NtSocketAddress               Address;
+} NtIpAdapterDnsServerAddress;
+
+typedef struct _NtIpAdapterPrefix {
+    union {
+        uint64_t Alignment;
+        struct {
+            uint32_t Length;
+            uint32_t Flags;
+        };
+    };
+    struct _NtIpAdapterPrefix  *Next;
+    struct NtSocketAddress      Address;
+    uint32_t                    PrefixLength;
+} NtIpAdapterPrefix;
+
+typedef struct _NtIpAdapterWinsServerAddress {
+    union {
+        uint64_t Alignment;
+        struct {
+            uint32_t Length;
+            uint32_t Reserved;
+        };
+    };
+    struct _NtIpAdapterWinsServerAddress *Next;
+    struct NtSocketAddress       Address;
+} NtIpAdapterWinsServerAddress;
+
+typedef struct _NtIpAdapterGatewayAddress {
+  union {
+    uint64_t Alignment;
+    struct {
+      uint32_t Length;
+      uint32_t Reserved;
+    };
+  };
+  struct _NtIpAdapterGatewayAddress *Next;
+  struct NtSocketAddress             Address;
+} NtIpAdapterGatewayAddress;
+
+typedef struct _NtGUID {
+    uint32_t Data1;
+    uint16_t Data2;
+    uint16_t Data3;
+    uint8_t  Data4[8];
+} NtGUID;
+
+typedef union _NtNetLUID
+{
+    uint64_t     Value;
+    struct
+    {
+        uint64_t    Reserved:24;
+        uint64_t    NetLuidIndex:24;
+        uint64_t    IfType:16;
+    }Info;
+} NtNetLUID;
+
+typedef struct _NtIpAdapterDnsSuffix {
+    struct _NtIpAdapterDnsSuffix *Next;
+    uint16_t String[kNtMaxDnsSuffixStringLength];
+} NtIpAdapterDnsSuffix;
+
+
+/* Top level ----------------------------------------------------------- */
+typedef struct _NtIpAdapterAddresses {
+  union {
+    uint64_t Alignment;
+    struct {
+      uint32_t  Length;
+      uint32_t  IfIndex;
+    };
+  };
+  struct _NtIpAdapterAddresses *     Next;
+  char *                             AdapterName;
+  NtIpAdapterUnicastAddress *        FirstUnicastAddress;
+  NtIpAdapterAnycastAddress *        FirstAnycastAddress;
+  NtIpAdapterMulticastAddress *      FirstMulticastAddress;
+  NtIpAdapterDnsServerAddress *      FirstDnsServerAddress;
+  uint16_t *                         DnsSuffix;
+  uint16_t *                         Description;
+  uint16_t *                         FriendlyName;
+  uint8_t                            PhysicalAddress[kNtMaxAdapterAddressLength];
+  uint32_t                           PhysicalAddressLength;
+  union {
+    uint32_t Flags;
+    struct {
+      uint32_t DdnsEnabled : 1;
+      uint32_t RegisterAdapterSuffix : 1;
+      uint32_t Dhcpv4Enabled : 1;
+      uint32_t ReceiveOnly : 1;
+      uint32_t NoMulticast : 1;
+      uint32_t Ipv6OtherStatefulConfig : 1;
+      uint32_t NetbiosOverTcpipEnabled : 1;
+      uint32_t Ipv4Enabled : 1;
+      uint32_t Ipv6Enabled : 1;
+      uint32_t Ipv6ManagedAddressConfigurationSupported : 1;
+    };
+  };
+  uint32_t                           Mtu;
+  uint32_t                           IfType;
+  NtIfOperStatus                     OperStatus;
+  uint32_t                           Ipv6IfIndex;
+  uint32_t                           ZoneIndices[16];
+  NtIpAdapterPrefix *                FirstPrefix;
+  uint64_t                           TransmitLinkSpeed;
+  uint64_t                           ReceiveLinkSpeed;
+  NtIpAdapterWinsServerAddress *     FirstWinsServerAddress;
+  NtIpAdapterGatewayAddress *        FirstGatewayAddress;
+  uint32_t                           Ipv4Metric;
+  uint32_t                           Ipv6Metric;
+  NtNetLUID                          Luid;
+  struct NtSocketAddress             Dhcpv4Server;
+  uint32_t                           CompartmentId;
+  NtGUID                             NetworkGuid;
+  NtNetIfConnectionType              ConnectionType;
+  NtTunnelType                       TunnelType;
+  struct NtSocketAddress             Dhcpv6Server;
+  uint8_t                            Dhcpv6ClientDuid[kNtMaxDhcpv6DuidLength];
+  uint32_t                           Dhcpv6ClientDuidLength;
+  uint32_t                           Dhcpv6Iaid;
+  NtIpAdapterDnsSuffix *             FirstDnsSuffix;
+} NtIpAdapterAddresses;
+
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_NT_STRUCT_IP_ADAPTER_ADDRESSES_H_ */
+

libc/nt/windows.h

@@ -91,6 +91,17 @@ bool32 TrackPopupMenu(int64_t hMenu, uint32_t uFlags, int32_t x, int32_t y,
                       int32_t nReserved, int64_t hWnd,
                       const struct NtRect *prcRect);
 
+int WideCharToMultiByte(unsigned int CodePage,
+    uint32_t dwFlags,
+    uint16_t * lpWideCharStr,
+    int cchWideChar,
+    char * lpMultiByteStr,
+    int cbMultiByte,
+    uint16_t * lpDefaultChar,
+    int * lpUsedDefaultChar
+);
+
+
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_LIBC_NT_WINDOWS_H_ */

libc/nt/winsock.h

@@ -85,6 +85,7 @@
 #define kNtSioTranslateHandle             0xC800000Du
 #define kNtSioUdpConnreset                0x9800000Cu
 #define kNtSioUdpNetreset                 0x9800000Fu
+#define kNtSioGetInterfaceList            0x4008747fu /* _IOR('t', 127, ULONG) */
 
 #define kNtNspNotifyImmediately 0
 #define kNtNspNotifyHwnd        1
@@ -311,6 +312,13 @@ struct NtFdSet {
   int64_t fd_array[64];
 };
 
+struct NtInterfaceInfo {
+  uint64_t           iiFlags;
+  struct sockaddr_in iiAddress;
+  struct sockaddr_in iiBroadcastAddress;
+  struct sockaddr_in iiNetmask;
+};
+
 /**
  * Winsock2 prototypes.
  *