diff --git a/CHANGES b/CHANGES
index 0d92117..1cc62d9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -14,6 +14,8 @@
     need to try using mmap on OpenBSD and NetBSD to get zero-copy TCP.
   guard against same event being signalled twice (confused our list
     handling)
+  add support for Solaris /dev/poll
+  add lose32 support (broken, please don't use!)
 
 0.16:
   add buffer_fromsa (make buffer from stralloc)
diff --git a/GNUmakefile b/GNUmakefile
index c8323c1..bf979b6 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -75,7 +75,7 @@ $(DNS_OBJS): dns.h stralloc.h taia.h tai.h uint64.h iopause.h
 $(CASE_OBJS): case.h
 $(ARRAY_OBJS): uint64.h array.h
 $(MULT_OBJS): uint64.h uint32.h uint16.h safemult.h
-$(IO_OBJS): uint64.h array.h io.h io_internal.h taia.h tai.h haveepoll.h havekqueue.h havesigio.h havebsdsf.h
+$(IO_OBJS): uint64.h array.h io.h io_internal.h taia.h tai.h haveepoll.h havekqueue.h havesigio.h havebsdsf.h havedevpoll.h
 
 
 iob_addbuf.o iob_addfile.o iob_new.o iob_reset.o iob_send.o: iob_internal.h iob.h
@@ -132,7 +132,7 @@ t: t.o libowfat.a
 clean:
 	rm -f *.o *.a *.da *.bbg *.bb core t haveip6.h haven2i.h \
 havesl.h haveinline.h iopause.h select.h havekqueue.h haveepoll.h \
-libepoll havesigio.h havebsdsf.h Makefile dep
+libepoll havesigio.h havebsdsf.h havescope.h havedevpoll.h Makefile dep
 
 INCLUDES=buffer.h byte.h fmt.h ip4.h ip6.h mmap.h scan.h socket.h str.h stralloc.h \
 uint16.h uint32.h uint64.h open.h textcode.h tai.h taia.h dns.h iopause.h case.h \
@@ -164,6 +164,11 @@ haveip6.h: tryip6.c
 	if $(DIET) $(CC) $(CFLAGS) -c tryip6.c >/dev/null 2>&1; then echo "#define LIBC_HAS_IP6"; fi > $@
 	-rm -f tryip6.o
 
+havescope.h: tryscope.c
+	-rm -f $@
+	if $(DIET) $(CC) $(CFLAGS) -c tryscope.c >/dev/null 2>&1; then echo "#define LIBC_HAS_SCOPE_ID"; fi > $@
+	-rm -f tryscope.o
+
 haven2i.h: tryn2i.c
 	-rm -f $@
 	if $(DIET) $(CC) $(CFLAGS) -o t tryn2i.c >/dev/null 2>&1; then echo "#define HAVE_N2I"; fi > $@
@@ -195,6 +200,11 @@ haveepoll.h: tryepoll.c
 	if $(DIET) $(CC) $(CFLAGS) -o tryepoll tryepoll.c -lepoll >/dev/null 2>&1; then echo "#define HAVE_EPOLL 2"; fi; fi > $@
 	-rm -f tryepoll
 
+havedevpoll.h: trydevpoll.c
+	-rm -f $@
+	if $(DIET) $(CC) $(CFLAGS) -c trydevpoll.c >/dev/null 2>&1; then echo "#define HAVE_DEVPOLL"; fi > $@
+	-rm -f trydevpoll.o
+
 libepoll: haveepoll.h
 	if test "z`cat haveepoll.h`" = "z#define HAVE_EPOLL 2"; then echo -lepoll; fi > $@
 
@@ -216,7 +226,7 @@ select.h: select.h1 select.h2 trysysel.c
 
 socket_accept6.o socket_connect6.o socket_local6.o socket_mchopcount6.o \
 socket_mcjoin6.o socket_mcleave6.o socket_mcloop6.o socket_recv6.o \
-socket_remote6.o socket_send6.o socket_tcp6.o socket_udp6.o: haveip6.h
+socket_remote6.o socket_send6.o socket_tcp6.o socket_udp6.o: haveip6.h havescope.h
 
 socket_getifidx.o socket_getifname.o: haven2i.h
 
@@ -226,7 +236,7 @@ socket_remote6.o: havesl.h
 
 fmt_xlong.o scan_xlong.o fmt_ip6_flat.o $(TEXTCODE_OBJS): haveinline.h
 
-dep: haveip6.h haven2i.h havesl.h haveinline.h iopause.h select.h haveepoll.h havekqueue.h
+dep: haveip6.h haven2i.h havesl.h haveinline.h iopause.h select.h haveepoll.h havekqueue.h havedevpoll.h
 	gcc -I. -MM $(wildcard */*.c) t.c > dep
 
 libdep:
diff --git a/buffer/buffer_1.c b/buffer/buffer_1.c
index e1d9538..94cbddd 100644
--- a/buffer/buffer_1.c
+++ b/buffer/buffer_1.c
@@ -1,5 +1,8 @@
 #include <unistd.h>
 #include "buffer.h"
+#ifdef __MINGW32__
+#include <io.h>
+#endif
 
 char buffer_1_space[BUFFER_INSIZE];
 static buffer it = BUFFER_INIT(write,1,buffer_1_space,sizeof buffer_1_space);
diff --git a/dns/dns_random.c b/dns/dns_random.c
index 2158ed4..92c064d 100644
--- a/dns/dns_random.c
+++ b/dns/dns_random.c
@@ -45,7 +45,9 @@ void dns_random_init(const char data[128])
     uint32_unpack(tpack + 4 * i,in + 4 + i);
 
   in[8] = getpid();
+#ifndef __MINGW32__
   in[9] = getppid();
+#endif
   /* more space in 10 and 11, but this is probably enough */
 }
 
diff --git a/dns/dns_rcrw.c b/dns/dns_rcrw.c
index 26262a1..f194479 100644
--- a/dns/dns_rcrw.c
+++ b/dns/dns_rcrw.c
@@ -5,6 +5,9 @@
 #include "str.h"
 #include "openreadclose.h"
 #include "dns.h"
+#ifdef __MINGW32__
+#include <winsock2.h>
+#endif
 
 static stralloc data = {0};
 
diff --git a/dns/dns_transmit.c b/dns/dns_transmit.c
index 9511511..ae0066f 100644
--- a/dns/dns_transmit.c
+++ b/dns/dns_transmit.c
@@ -1,5 +1,9 @@
 #include <sys/types.h>
+#ifdef WIN32
+#include <winsock2.h>
+#else
 #include <sys/socket.h>
+#endif
 #include <unistd.h>
 #include <stdlib.h>
 #include "socket.h"
diff --git a/io/io_closeonexec.c b/io/io_closeonexec.c
index a305993..b36d636 100644
--- a/io/io_closeonexec.c
+++ b/io/io_closeonexec.c
@@ -4,5 +4,7 @@
 #include "io_internal.h"
 
 void io_closeonexec(int64 d) {
+#ifndef __MINGW32__
   fcntl(d,F_SETFL,fcntl(d,F_GETFL,0) | FD_CLOEXEC);
+#endif
 }
diff --git a/io/io_dontwantread.c b/io/io_dontwantread.c
index 34be35f..5fa4b33 100644
--- a/io/io_dontwantread.c
+++ b/io/io_dontwantread.c
@@ -11,6 +11,11 @@
 #include <inttypes.h>
 #include <sys/epoll.h>
 #endif
+#ifdef HAVE_DEVPOLL
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/devpoll.h>
+#endif
 
 void io_dontwantread(int64 d) {
   int newfd;
@@ -35,6 +40,15 @@ void io_dontwantread(int64 d) {
     ts.tv_sec=0; ts.tv_nsec=0;
     kevent(io_master,&kev,1,0,0,&ts);
   }
+#endif
+#ifdef HAVE_DEVPOLL
+  if (io_waitmode==DEVPOLL) {
+    struct pollfd x;
+    x.fd=d;
+    x.events=0;
+    if (e->wantwrite) x.events|=POLLOUT;
+    write(io_master,&x,sizeof(x));
+  }
 #endif
   e->wantread=0;
 }
diff --git a/io/io_dontwantwrite.c b/io/io_dontwantwrite.c
index 769c22b..2122e51 100644
--- a/io/io_dontwantwrite.c
+++ b/io/io_dontwantwrite.c
@@ -11,6 +11,11 @@
 #include <inttypes.h>
 #include <sys/epoll.h>
 #endif
+#ifdef HAVE_DEVPOLL
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/devpoll.h>
+#endif
 
 void io_dontwantwrite(int64 d) {
   int newfd;
@@ -35,6 +40,15 @@ void io_dontwantwrite(int64 d) {
     ts.tv_sec=0; ts.tv_nsec=0;
     kevent(io_master,&kev,1,0,0,&ts);
   }
+#endif
+#ifdef HAVE_DEVPOLL
+  if (io_waitmode==DEVPOLL) {
+    struct pollfd x;
+    x.fd=d;
+    x.events=0;
+    if (e->wantread) x.events|=POLLIN;
+    write(io_master,&x,sizeof(x));
+  }
 #endif
   e->wantwrite=0;
 }
diff --git a/io/io_eagain.c b/io/io_eagain.c
index 76f8650..301f10e 100644
--- a/io/io_eagain.c
+++ b/io/io_eagain.c
@@ -3,7 +3,8 @@
 void io_eagain(int64 d) {
   io_entry* e=array_get(&io_fds,sizeof(io_entry),d);
   if (e) {
-    e->canread=0;
+    if (e->wantread) e->canread=0;
+    if (e->wantwrite) e->canwrite=0;
 #ifdef HAVE_SIGIO
     if (d==alt_firstread) {
       debug_printf(("io_eagain: dequeueing %lld from alt read queue (next is %ld)\n",d,e->next_read));
diff --git a/io/io_fd.c b/io/io_fd.c
index ec613f4..dcbdab5 100644
--- a/io/io_fd.c
+++ b/io/io_fd.c
@@ -18,17 +18,26 @@
 #include <sys/epoll.h>
 #endif
 #include <unistd.h>
+#ifdef HAVE_DEVPOLL
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/devpoll.h>
+#endif
 
 /* put d on internal data structure, return 1 on success, 0 on error */
 int io_fd(int64 d) {
-  long r;
   io_entry* e;
+#ifndef __MINGW32__
+  long r;
   if ((r=fcntl(d,F_GETFL,0)) == -1)
     return 0;	/* file descriptor not open */
+#endif
   if (!(e=array_allocate(&io_fds,sizeof(io_entry),d))) return 0;
   byte_zero(e,sizeof(io_entry));
   e->inuse=1;
+#ifndef __MINGW32__
   if (r&O_NDELAY) e->nonblock=1;
+#endif
   e->next_read=e->next_write=-1;
   if (io_waitmode==UNDECIDED) {
     first_readable=first_writeable=-1;
@@ -42,6 +51,12 @@ int io_fd(int64 d) {
       if (io_master!=-1) io_waitmode=KQUEUE;
     }
 #endif
+#if defined(HAVE_DEVPOLL)
+    if (io_waitmode==UNDECIDED) {
+      io_master=open("/dev/poll",O_RDWR);
+      if (io_master!=-1) io_waitmode=DEVPOLL;
+    }
+#endif
 #if defined(HAVE_SIGIO)
     alt_firstread=alt_firstwrite=-1;
     if (io_waitmode==UNDECIDED) {
diff --git a/io/io_nonblock.c b/io/io_nonblock.c
index 69e1cfb..faf6ff4 100644
--- a/io/io_nonblock.c
+++ b/io/io_nonblock.c
@@ -3,8 +3,23 @@
 #include <errno.h>
 #include "io_internal.h"
 
+#ifdef __MINGW32__
+#include <winsock2.h>
+#include "windoze.h"
+#endif
+
+#ifndef O_NDELAY
+#define O_NDELAY O_NONBLOCK
+#endif
+
 void io_nonblock(int64 d) {
   io_entry* e=array_get(&io_fds,sizeof(io_entry),d);
+#ifdef __MINGW32__
+  unsigned long i=1;
+  if (ioctlsocket( d, FIONBIO, &i)==0)
+    if (e) e->nonblock=1;
+#else
   if (fcntl(d,F_SETFL,fcntl(d,F_GETFL,0) | O_NDELAY)==0)
     if (e) e->nonblock=1;
+#endif
 }
diff --git a/io/io_pipe.c b/io/io_pipe.c
index 6f40413..5bd2b79 100644
--- a/io/io_pipe.c
+++ b/io/io_pipe.c
@@ -2,9 +2,15 @@
 #include "io_internal.h"
 
 int io_pipe(int64* d) {
+#ifdef __MINGW32__
+  HANDLE fds[2];
+  if (CreatePipe(fds,fds+1,0,0)==0)
+    return 0;
+#else
   int fds[2];
   if (pipe(fds)==-1)
     return 0;
+#endif
   if (io_fd(fds[1])) {
     if (io_fd(fds[0])) {
       d[0]=fds[0];
diff --git a/io/io_waituntil2.c b/io/io_waituntil2.c
index 3886beb..01e18a4 100644
--- a/io/io_waituntil2.c
+++ b/io/io_waituntil2.c
@@ -14,6 +14,11 @@
 #include <inttypes.h>
 #include <sys/epoll.h>
 #endif
+#ifdef HAVE_DEVPOLL
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/devpoll.h>
+#endif
 
 int64 io_waituntil2(int64 milliseconds) {
   struct pollfd* p;
@@ -79,6 +84,38 @@ int64 io_waituntil2(int64 milliseconds) {
     return n;
   }
 #endif
+#ifdef HAVE_DEVPOLL
+  if (io_waitmode==DEVPOLL) {
+    dvpoll_t timeout;
+    struct pollfd y[100];
+    int n;
+    timeout.dp_timeout=milliseconds;
+    timeout.dp_nfds=100;
+    timeout.dp_fds=y;
+    if ((n=ioctl(io_master,DP_POLL,&timeout))==-1) return -1;
+    for (i=n-1; i>=0; --i) {
+      io_entry* e=array_get(&io_fds,sizeof(io_entry),y[--n].fd);
+      if (e) {
+	if (y[n].revents&(POLLERR|POLLHUP)) {
+	  /* error; signal whatever app is looking for */
+	  if (e->wantread) y[n].revents=POLLIN; else
+	  if (e->wantwrite) y[n].revents=POLLOUT;
+	}
+	if (!e->canread && (y[n].revents==POLLIN)) {
+	  e->canread=1;
+	  e->next_read=first_readable;
+	  first_readable=y[n].fd;
+	}
+	if (!e->canwrite && (y[n].revents==POLLOUT)) {
+	  e->canwrite=1;
+	  e->next_write=first_writeable;
+	  first_writeable=y[i].fd;
+	}
+      }
+    }
+    return n;
+  }
+#endif
 #ifdef HAVE_SIGIO
   if (io_waitmode==_SIGIO) {
     siginfo_t info;
diff --git a/io/io_wantread.c b/io/io_wantread.c
index 567cc06..1d6b9cb 100644
--- a/io/io_wantread.c
+++ b/io/io_wantread.c
@@ -14,6 +14,11 @@
 #ifdef HAVE_SIGIO
 #include <sys/poll.h>
 #endif
+#ifdef HAVE_DEVPOLL
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/devpoll.h>
+#endif
 
 void io_wantread(int64 d) {
   int newfd;
@@ -39,6 +44,15 @@ void io_wantread(int64 d) {
     kevent(io_master,&kev,1,0,0,&ts);
   }
 #endif
+#ifdef HAVE_DEVPOLL
+  if (io_waitmode==DEVPOLL) {
+    struct pollfd x;
+    x.fd=d;
+    x.events=POLLIN;
+    if (e->wantwrite) x.events|=POLLOUT;
+    write(io_master,&x,sizeof(x));
+  }
+#endif
 #ifdef HAVE_SIGIO
   if (io_waitmode==_SIGIO) {
     struct pollfd p;
diff --git a/io/io_wantwrite.c b/io/io_wantwrite.c
index 12e6b09..2113c95 100644
--- a/io/io_wantwrite.c
+++ b/io/io_wantwrite.c
@@ -14,6 +14,11 @@
 #ifdef HAVE_SIGIO
 #include <sys/poll.h>
 #endif
+#ifdef HAVE_DEVPOLL
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/devpoll.h>
+#endif
 
 void io_wantwrite(int64 d) {
   int newfd;
@@ -39,6 +44,15 @@ void io_wantwrite(int64 d) {
     kevent(io_master,&kev,1,0,0,&ts);
   }
 #endif
+#ifdef HAVE_DEVPOLL
+  if (io_waitmode==DEVPOLL) {
+    struct pollfd x;
+    x.fd=d;
+    x.events=POLLOUT;
+    if (e->wantread) x.events|=POLLIN;
+    write(io_master,&x,sizeof(x));
+  }
+#endif
 #ifdef HAVE_SIGIO
   if (io_waitmode==_SIGIO) {
     struct pollfd p;
diff --git a/io_internal.h b/io_internal.h
index 66b9947..ec38116 100644
--- a/io_internal.h
+++ b/io_internal.h
@@ -2,12 +2,18 @@
 #include "array.h"
 #include "haveepoll.h"
 #include "havekqueue.h"
+#include "havedevpoll.h"
 #include "havesigio.h"
 #ifdef HAVE_SIGIO
 #define _GNU_SOURCE
 #include <signal.h>
 #endif
 
+#ifdef __MINGW32__
+#include "socket.h"
+extern HANDLE io_comport;
+#endif
+
 typedef struct {
   unsigned int wantread:1;
   unsigned int wantwrite:1;
@@ -19,6 +25,10 @@ typedef struct {
   long next_read;
   long next_write;
   void* cookie;
+#ifdef __MINGW32__
+  OVERLAPPED o;
+  HANDLE fd;
+#endif
 } io_entry;
 
 extern array io_fds;
@@ -40,9 +50,12 @@ enum {
 #ifdef HAVE_SIGIO
   ,_SIGIO
 #endif
+#ifdef HAVE_DEVPOLL
+  ,DEVPOLL
+#endif
 } io_waitmode;
 
-#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL)
+#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL) || defined(HAVE_DEVPOLL)
 extern int io_master;
 #endif
 #if defined(HAVE_SIGIO)
diff --git a/mmap/mmap_private.c b/mmap/mmap_private.c
index e88aabc..4c7ad17 100644
--- a/mmap/mmap_private.c
+++ b/mmap/mmap_private.c
@@ -1,10 +1,28 @@
 #include <sys/types.h>
 #include <unistd.h>
+#ifdef __MINGW32__
+#include <windows.h>
+#else
 #include <sys/mman.h>
+#endif
 #include "open.h"
 #include "mmap.h"
 
-extern char* mmap_private(const char* filename,unsigned long* filesize) {
+char* mmap_private(const char* filename,unsigned long* filesize) {
+#ifdef __MINGW32__
+  HANDLE fd,m;
+  char* map;
+  fd=CreateFile(filename,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
+  if (fd==INVALID_HANDLE_VALUE)
+    return 0;
+  m=CreateFileMapping(fd,0,PAGE_WRITECOPY,0,0,NULL);
+  map=0;
+  if (m)
+    map=MapViewOfFile(m,FILE_MAP_COPY,0,0,0);
+  CloseHandle(m);
+  CloseHandle(fd);
+  return map;
+#else
   int fd=open_read(filename);
   char *map;
   if (fd>=0) {
@@ -16,4 +34,5 @@ extern char* mmap_private(const char* filename,unsigned long* filesize) {
     return map;
   }
   return 0;
+#endif
 }
diff --git a/mmap/mmap_read.c b/mmap/mmap_read.c
index 4c25c9e..138ef17 100644
--- a/mmap/mmap_read.c
+++ b/mmap/mmap_read.c
@@ -1,10 +1,28 @@
 #include <sys/types.h>
 #include <unistd.h>
+#ifdef __MINGW32__
+#include <windows.h>
+#else
 #include <sys/mman.h>
+#endif
 #include "open.h"
 #include "mmap.h"
 
 extern char* mmap_read(const char* filename,unsigned long* filesize) {
+#ifdef __MINGW32__
+  HANDLE fd,m;
+  char* map;
+  fd=CreateFile(filename,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
+  if (fd==INVALID_HANDLE_VALUE)
+    return 0;
+  m=CreateFileMapping(fd,0,PAGE_READONLY,0,0,NULL);
+  map=0;
+  if (m)
+    map=MapViewOfFile(m,FILE_MAP_READ,0,0,0);
+  CloseHandle(m);
+  CloseHandle(fd);
+  return map;
+#else
   int fd=open_read(filename);
   char *map;
   if (fd>=0) {
@@ -16,4 +34,5 @@ extern char* mmap_read(const char* filename,unsigned long* filesize) {
     return map;
   }
   return 0;
+#endif
 }
diff --git a/mmap/mmap_shared.c b/mmap/mmap_shared.c
index d402c76..aaf7b88 100644
--- a/mmap/mmap_shared.c
+++ b/mmap/mmap_shared.c
@@ -1,10 +1,28 @@
 #include <sys/types.h>
 #include <unistd.h>
+#ifdef __MINGW32__
+#include <windows.h>
+#else
 #include <sys/mman.h>
+#endif
 #include "open.h"
 #include "mmap.h"
 
 extern char* mmap_shared(const char* filename,unsigned long* filesize) {
+#ifdef __MINGW32__
+  HANDLE fd,m;
+  char* map;
+  fd=CreateFile(filename,GENERIC_WRITE,FILE_SHARE_WRITE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
+  if (fd==INVALID_HANDLE_VALUE)
+    return 0;
+  m=CreateFileMapping(fd,0,PAGE_READWRITE,0,0,NULL);
+  map=0;
+  if (m)
+    map=MapViewOfFile(m,FILE_MAP_WRITE,0,0,0);
+  CloseHandle(m);
+  CloseHandle(fd);
+  return map;
+#else
   int fd=open_read(filename);
   char *map;
   if (fd>=0) {
@@ -16,4 +34,5 @@ extern char* mmap_shared(const char* filename,unsigned long* filesize) {
     return map;
   }
   return 0;
+#endif
 }
diff --git a/open/open_append.c b/open/open_append.c
index d90fadd..70512c8 100644
--- a/open/open_append.c
+++ b/open/open_append.c
@@ -2,6 +2,10 @@
 #include <fcntl.h>
 #include "open.h"
 
-extern int open_append(const char *filename) {
+#ifndef O_NDELAY
+#define O_NDELAY 0
+#endif
+
+int open_append(const char *filename) {
   return open(filename,O_WRONLY|O_NDELAY|O_APPEND|O_CREAT,0600);
 }
diff --git a/open/open_excl.c b/open/open_excl.c
index ed44640..0ac42c3 100644
--- a/open/open_excl.c
+++ b/open/open_excl.c
@@ -2,6 +2,10 @@
 #include <fcntl.h>
 #include "open.h"
 
-extern int open_excl(const char *filename) {
+#ifndef O_NDELAY
+#define O_NDELAY 0
+#endif
+
+int open_excl(const char *filename) {
   return open(filename,O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT|O_EXCL,0600);
 }
diff --git a/open/open_read.c b/open/open_read.c
index c0e99f2..9aadf2f 100644
--- a/open/open_read.c
+++ b/open/open_read.c
@@ -2,6 +2,10 @@
 #include <fcntl.h>
 #include "open.h"
 
-extern int open_read(const char *filename) {
+#ifndef O_NDELAY
+#define O_NDELAY 0
+#endif
+
+int open_read(const char *filename) {
   return open(filename,O_RDONLY|O_NDELAY);
 }
diff --git a/open/open_trunc.c b/open/open_trunc.c
index 8f0acf8..4c13770 100644
--- a/open/open_trunc.c
+++ b/open/open_trunc.c
@@ -2,6 +2,10 @@
 #include <fcntl.h>
 #include "open.h"
 
-extern int open_trunc(const char *filename) {
+#ifndef O_NDELAY
+#define O_NDELAY 0
+#endif
+
+int open_trunc(const char *filename) {
   return open(filename,O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT,0644);
 }
diff --git a/open/open_write.c b/open/open_write.c
index 037a52d..73781e6 100644
--- a/open/open_write.c
+++ b/open/open_write.c
@@ -2,6 +2,10 @@
 #include <fcntl.h>
 #include "open.h"
 
-extern int open_write(const char *filename) {
+#ifndef O_NDELAY
+#define O_NDELAY 0
+#endif
+
+int open_write(const char *filename) {
   return open(filename,O_WRONLY|O_CREAT|O_NDELAY,0644);
 }
diff --git a/socket.h b/socket.h
index f47cfc0..228407d 100644
--- a/socket.h
+++ b/socket.h
@@ -55,4 +55,47 @@ int socket_sendfile(int out,int in,uint32 offset,uint32 bytes);
 
 int noipv6;
 
+#ifdef __MINGW32__
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#define EINPROGRESS WSAEINPROGRESS
+#define EALREADY WSAEALREADY
+#define ENOTSOCK WSAENOTSOCK
+#define EDESTADDRREQ WSAEDESTADDRREQ
+#define EMSGSIZE WSAEMSGSIZE
+#define EPROTOTYPE WSAEPROTOTYPE
+#define ENOPROTOOPT WSAENOPROTOOPT
+#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
+#define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
+#define EOPNOTSUPP WSAEOPNOTSUPP
+#define EPFNOSUPPORT WSAEPFNOSUPPORT
+#define EAFNOSUPPORT WSAEAFNOSUPPORT
+#define EADDRINUSE WSAEADDRINUSE
+#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
+#define ENETDOWN WSAENETDOWN
+#define ENETUNREACH WSAENETUNREACH
+#define ENETRESET WSAENETRESET
+#define ECONNABORTED WSAECONNABORTED
+#define ECONNRESET WSAECONNRESET
+#define ENOBUFS WSAENOBUFS
+#define EISCONN WSAEISCONN
+#define ENOTCONN WSAENOTCONN
+#define ESHUTDOWN WSAESHUTDOWN
+#define ETOOMANYREFS WSAETOOMANYREFS
+#define ETIMEDOUT WSAETIMEDOUT
+#define ECONNREFUSED WSAECONNREFUSED
+#define ELOOP WSAELOOP
+#define EHOSTDOWN WSAEHOSTDOWN
+#define EHOSTUNREACH WSAEHOSTUNREACH
+#define EPROCLIM WSAEPROCLIM
+#define EUSERS WSAEUSERS
+#define EDQUOT WSAEDQUOT
+#define ESTALE WSAESTALE
+#define EREMOTE WSAEREMOTE
+#define EDISCON WSAEDISCON
+
+#endif
+
 #endif
diff --git a/socket/socket_accept4.c b/socket/socket_accept4.c
index c9c323f..322a86e 100644
--- a/socket/socket_accept4.c
+++ b/socket/socket_accept4.c
@@ -1,6 +1,9 @@
+#ifndef __MINGW32__
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "havesl.h"
 
@@ -8,7 +11,8 @@ int socket_accept4(int s,char *ip,uint16 *port) {
   struct sockaddr_in si;
   socklen_t len = sizeof si;
   int fd;
-  if ((fd=accept(s,(struct sockaddr*) &si,&len))<0) return -1;
+  if ((fd=accept(s,(struct sockaddr*) &si,&len))==-1)
+    return winsock2errno(-1);
   *(uint32*)ip = *(uint32*)&si.sin_addr;
   uint16_unpack_big((char *) &si.sin_port,port);
   return fd;
diff --git a/socket/socket_accept6.c b/socket/socket_accept6.c
index 2ff1627..1e3220a 100644
--- a/socket/socket_accept6.c
+++ b/socket/socket_accept6.c
@@ -1,12 +1,16 @@
 #include <sys/param.h>
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 #include "ip6.h"
 #include "haveip6.h"
 #include "havesl.h"
+#include "havescope.h"
 
 int socket_accept6(int s,char* ip,uint16* port,uint32* scope_id)
 {
@@ -19,7 +23,8 @@ int socket_accept6(int s,char* ip,uint16* port,uint32* scope_id)
   int fd;
 
   fd = accept(s,(struct sockaddr *) &sa,&dummy);
-  if (fd == -1) return -1;
+  if (fd == -1)
+    return winsock2errno(-1);
 
 #ifdef LIBC_HAS_IP6
   if (sa.sin6_family==AF_INET) {
@@ -33,7 +38,11 @@ int socket_accept6(int s,char* ip,uint16* port,uint32* scope_id)
   }
   if (ip) byte_copy(ip,16,(char *) &sa.sin6_addr);
   if (port) uint16_unpack_big((char *) &sa.sin6_port,port);
+#ifdef HAVE_SCOPE_ID
   if (scope_id) *scope_id=sa.sin6_scope_id;
+#else
+  if (scope_id) *scope_id=0;
+#endif
 
   return fd;
 #else
diff --git a/socket/socket_bind4.c b/socket/socket_bind4.c
index 566dbc2..b0bacee 100644
--- a/socket/socket_bind4.c
+++ b/socket/socket_bind4.c
@@ -1,6 +1,9 @@
+#ifndef __MINGW32__
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "uint16.h"
 #include "uint32.h"
@@ -15,5 +18,5 @@ int socket_bind4(int s,const char *ip,uint16 port) {
     *(uint32*)&si.sin_addr = *(uint32*)ip;
   else
     si.sin_addr.s_addr=INADDR_ANY;
-  return bind(s,(struct sockaddr*)&si,sizeof si);
+  return winsock2errno(bind(s,(struct sockaddr*)&si,sizeof si));
 }
diff --git a/socket/socket_bind4_reuse.c b/socket/socket_bind4_reuse.c
index 056a491..7e1b8c1 100644
--- a/socket/socket_bind4_reuse.c
+++ b/socket/socket_bind4_reuse.c
@@ -1,9 +1,12 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
+#endif
 #include "socket.h"
+#include "windoze.h"
 
 int socket_bind4_reuse(int s,const char *ip,uint16 port) {
   int one=1;
   setsockopt(s,SOL_SOCKET,SO_REUSEADDR,&one,sizeof one);
-  return socket_bind4(s,ip,port);
+  return winsock2errno(socket_bind4(s,ip,port));
 }
diff --git a/socket/socket_bind6.c b/socket/socket_bind6.c
index 551cfe3..2d7f3c0 100644
--- a/socket/socket_bind6.c
+++ b/socket/socket_bind6.c
@@ -1,8 +1,11 @@
 #include <errno.h>
 #include "haveip6.h"
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "ip6.h"
 #include "byte.h"
 #include "socket.h"
@@ -32,7 +35,7 @@ int socket_bind6(int s,const char ip[16],uint16 port,uint32 scope_id)
   byte_copy((char *) &sa.sin6_addr,16,ip);
   sa.sin6_scope_id=scope_id;
 
-  return bind(s,(struct sockaddr *) &sa,sizeof sa);
+  return winsock2errno(bind(s,(struct sockaddr *) &sa,sizeof sa));
 #else
   errno=EPROTONOSUPPORT;
   return -1;
diff --git a/socket/socket_bind6_reuse.c b/socket/socket_bind6_reuse.c
index d529631..439c798 100644
--- a/socket/socket_bind6_reuse.c
+++ b/socket/socket_bind6_reuse.c
@@ -1,9 +1,12 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
+#endif
 #include "socket.h"
+#include "windoze.h"
 
 int socket_bind6_reuse(int s,const char *ip,uint16 port,uint32 scope_id) {
   int one=1;
   setsockopt(s,SOL_SOCKET,SO_REUSEADDR,&one,sizeof one);
-  return socket_bind6(s,ip,port,scope_id);
+  return winsock2errno(socket_bind6(s,ip,port,scope_id));
 }
diff --git a/socket/socket_broadcast.c b/socket/socket_broadcast.c
index 294cfbd..fb275b3 100644
--- a/socket/socket_broadcast.c
+++ b/socket/socket_broadcast.c
@@ -1,12 +1,15 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
 #include "socket.h"
+#include "windoze.h"
 
 int socket_broadcast(int s)
 {
   int opt = 1;
-  return setsockopt(s,SOL_SOCKET,SO_BROADCAST,&opt,sizeof opt);
+  return winsock2errno(setsockopt(s,SOL_SOCKET,SO_BROADCAST,&opt,sizeof opt));
 }
 
diff --git a/socket/socket_connect4.c b/socket/socket_connect4.c
index 141970c..95f7230 100644
--- a/socket/socket_connect4.c
+++ b/socket/socket_connect4.c
@@ -1,6 +1,9 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 
 #include "byte.h"
 #include "socket.h"
@@ -13,5 +16,5 @@ int socket_connect4(int s,const char *ip,uint16 port) {
   si.sin_family=AF_INET;
   uint16_pack_big((char*) &si.sin_port,port);
   *((uint32*)&si.sin_addr) = *((uint32*)ip);
-  return (connect(s,(struct sockaddr*)&si,sizeof(si)));
+  return (winsock2errno(connect(s,(struct sockaddr*)&si,sizeof(si))));
 }
diff --git a/socket/socket_connect6.c b/socket/socket_connect6.c
index 0ad886d..095c0fd 100644
--- a/socket/socket_connect6.c
+++ b/socket/socket_connect6.c
@@ -1,7 +1,10 @@
 #include <sys/param.h>
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include <errno.h>
 #include "byte.h"
 #include "socket.h"
@@ -9,6 +12,7 @@
 #include "haveip6.h"
 #include "uint32.h"
 #include "ip4.h"
+#include "havescope.h"
 
 int socket_connect6(int s,const char ip[16],uint16 port,uint32 scope_id)
 {
@@ -18,19 +22,21 @@ int socket_connect6(int s,const char ip[16],uint16 port,uint32 scope_id)
   if (noipv6) {
 #endif
     if (ip6_isv4mapped(ip))
-      return socket_connect4(s,ip+12,port);
+      return winsock2errno(socket_connect4(s,ip+12,port));
     if (byte_equal(ip,16,V6loopback))
-      return socket_connect4(s,ip4loopback,port);
+      return winsock2errno(socket_connect4(s,ip4loopback,port));
 #ifdef LIBC_HAS_IP6
   }
   byte_zero(&sa,sizeof sa);
   sa.sin6_family = PF_INET6;
   uint16_pack_big((char *) &sa.sin6_port,port);
   sa.sin6_flowinfo = 0;
+#ifdef HAVE_SCOPE_ID
   sa.sin6_scope_id = scope_id;
+#endif
   byte_copy((char *) &sa.sin6_addr,16,ip);
 
-  return connect(s,(struct sockaddr *) &sa,sizeof sa);
+  return winsock2errno(connect(s,(struct sockaddr *) &sa,sizeof sa));
 #else
   errno=EPROTONOSUPPORT;
   return -1;
diff --git a/socket/socket_connected.c b/socket/socket_connected.c
index e4f8b7f..ade40b8 100644
--- a/socket/socket_connected.c
+++ b/socket/socket_connected.c
@@ -1,6 +1,8 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
 #include "socket.h"
 #include "havesl.h"
 
diff --git a/socket/socket_getifidx.c b/socket/socket_getifidx.c
index c71fc48..3e2dda7 100644
--- a/socket/socket_getifidx.c
+++ b/socket/socket_getifidx.c
@@ -1,6 +1,8 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <net/if.h>
+#endif
 #include "socket.h"
 #include "haven2i.h"
 
diff --git a/socket/socket_getifname.c b/socket/socket_getifname.c
index 72b2d0c..21b4514 100644
--- a/socket/socket_getifname.c
+++ b/socket/socket_getifname.c
@@ -1,21 +1,23 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <net/if.h>
+#endif
 #include "socket.h"
 #include "haven2i.h"
 
 #ifdef HAVE_N2I
 static char ifname[IFNAMSIZ];
 
-const char* socket_getifname(uint32 interface) {
-  char *tmp=if_indextoname(interface,ifname);
+const char* socket_getifname(uint32 _interface) {
+  char *tmp=if_indextoname(_interface,ifname);
   if (tmp)
     return tmp;
   else
     return "[unknown]";
 }
 #else
-const char* socket_getifname(uint32 interface) {
+const char* socket_getifname(uint32 _interface) {
   return "[unknown]";
 }
 #endif
diff --git a/socket/socket_listen.c b/socket/socket_listen.c
index 5018ff0..51e2e17 100644
--- a/socket/socket_listen.c
+++ b/socket/socket_listen.c
@@ -1,6 +1,10 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
+#endif
+#include "socket.h"
+#include "windoze.h"
 
 int socket_listen(int s,unsigned int backlog) {
-  return listen(s, backlog);
+  return winsock2errno(listen(s, backlog));
 }
diff --git a/socket/socket_local4.c b/socket/socket_local4.c
index 52db123..dcfd71c 100644
--- a/socket/socket_local4.c
+++ b/socket/socket_local4.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 #include "havesl.h"
@@ -11,7 +14,7 @@ int socket_local4(int s,char ip[4],uint16 *port)
   struct sockaddr_in si;
   socklen_t len = sizeof si;
 
-  if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return -1;
+  if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return winsock2errno(-1);
   if (ip) *(uint32*)ip = *(uint32*)&si.sin_addr;
   if (port) uint16_unpack_big((char *) &si.sin_port,port);
   return 0;
diff --git a/socket/socket_local6.c b/socket/socket_local6.c
index 37689b1..1d708bf 100644
--- a/socket/socket_local6.c
+++ b/socket/socket_local6.c
@@ -1,13 +1,17 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 #include "ip6.h"
 #include "haveip6.h"
 #include "uint32.h"
 #include "havesl.h"
+#include "havescope.h"
 
 int socket_local6(int s,char ip[16],uint16 *port,uint32 *scope_id)
 {
@@ -18,7 +22,7 @@ int socket_local6(int s,char ip[16],uint16 *port,uint32 *scope_id)
 #endif
   socklen_t len = sizeof si;
 
-  if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return -1;
+  if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return winsock2errno(-1);
 #ifdef LIBC_HAS_IP6
   if (si.sin6_family==AF_INET) {
     struct sockaddr_in *si4=(struct sockaddr_in*)&si;
@@ -31,7 +35,12 @@ int socket_local6(int s,char ip[16],uint16 *port,uint32 *scope_id)
   }
   if (ip) byte_copy(ip,16,(char *) &si.sin6_addr);
   if (port) uint16_unpack_big((char *) &si.sin6_port,port);
+#ifdef HAVE_SCOPE_ID
   if (scope_id) *scope_id=si.sin6_scope_id;
+#else
+  if (scope_id) *scope_id=0;
+#endif
+
 #else
   if (ip) {
     byte_copy(ip,12,V4mappedprefix);
diff --git a/socket/socket_mchopcount6.c b/socket/socket_mchopcount6.c
index a727108..9c46696 100644
--- a/socket/socket_mchopcount6.c
+++ b/socket/socket_mchopcount6.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "byte.h"
 #include "haveip6.h"
@@ -14,8 +17,8 @@
 int socket_mchopcount6(int s,char TTL)
 {
 #ifdef LIBC_HAS_IP6
-  return setsockopt(s,IPPROTO_IPV6,IPV6_MULTICAST_HOPS,&TTL,sizeof TTL);
+  return winsock2errno(setsockopt(s,IPPROTO_IPV6,IPV6_MULTICAST_HOPS,&TTL,sizeof TTL));
 #else
-  return socket_mcttl4(s,TTL);
+  return winsock2errno(socket_mcttl4(s,TTL));
 #endif
 }
diff --git a/socket/socket_mcjoin4.c b/socket/socket_mcjoin4.c
index fe4299b..bdfe44a 100644
--- a/socket/socket_mcjoin4.c
+++ b/socket/socket_mcjoin4.c
@@ -1,15 +1,18 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "byte.h"
 
-int socket_mcjoin4(int s,const char ip[4],const char interface[4])
+int socket_mcjoin4(int s,const char ip[4],const char _interface[4])
 {
   struct ip_mreq opt;
   byte_copy(&opt.imr_multiaddr.s_addr,4,ip);
-  byte_copy(&opt.imr_interface.s_addr,4,interface);
-  return setsockopt(s,IPPROTO_IP,IP_ADD_MEMBERSHIP,&opt,sizeof opt);
+  byte_copy(&opt.imr_interface.s_addr,4,_interface);
+  return winsock2errno(setsockopt(s,IPPROTO_IP,IP_ADD_MEMBERSHIP,&opt,sizeof opt));
 }
 
diff --git a/socket/socket_mcjoin6.c b/socket/socket_mcjoin6.c
index 135b059..2ee0ef4 100644
--- a/socket/socket_mcjoin6.c
+++ b/socket/socket_mcjoin6.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "byte.h"
 #include "haveip6.h"
@@ -16,7 +19,7 @@
 #endif
 #endif
 
-int socket_mcjoin6(int s,const char ip[16],int interface)
+int socket_mcjoin6(int s,const char ip[16],int _interface)
 {
 #ifdef LIBC_HAS_IP6
   struct ipv6_mreq opt;
@@ -25,8 +28,8 @@ int socket_mcjoin6(int s,const char ip[16],int interface)
     return socket_mcjoin4(s,ip+12,ip);
 #ifdef LIBC_HAS_IP6
   byte_copy(&opt.ipv6mr_multiaddr,16,ip);
-  opt.ipv6mr_interface=interface;
-  return setsockopt(s,IPPROTO_IPV6,IPV6_ADD_MEMBERSHIP,&opt,sizeof opt);
+  opt.ipv6mr_interface=_interface;
+  return winsock2errno(setsockopt(s,IPPROTO_IPV6,IPV6_ADD_MEMBERSHIP,&opt,sizeof opt));
 #else
   errno=EPROTONOSUPPORT;
   return -1;
diff --git a/socket/socket_mcleave4.c b/socket/socket_mcleave4.c
index e068c0f..2fed693 100644
--- a/socket/socket_mcleave4.c
+++ b/socket/socket_mcleave4.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "byte.h"
 
@@ -10,6 +13,6 @@ int socket_mcleave4(int s,const char ip[4])
   struct ip_mreq opt;
   byte_copy(&opt.imr_multiaddr.s_addr,4,ip);
   byte_zero(&opt.imr_interface.s_addr,4);
-  return setsockopt(s,IPPROTO_IP,IP_DROP_MEMBERSHIP,&opt,sizeof opt);
+  return winsock2errno(setsockopt(s,IPPROTO_IP,IP_DROP_MEMBERSHIP,&opt,sizeof opt));
 }
 
diff --git a/socket/socket_mcleave6.c b/socket/socket_mcleave6.c
index d842044..e8c9b33 100644
--- a/socket/socket_mcleave6.c
+++ b/socket/socket_mcleave6.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "byte.h"
 #include "haveip6.h"
@@ -26,7 +29,7 @@ int socket_mcleave6(int s,const char ip[16])
 #ifdef LIBC_HAS_IP6
   byte_copy(&opt.ipv6mr_multiaddr,16,ip);
   opt.ipv6mr_interface=0;
-  return setsockopt(s,IPPROTO_IPV6,IPV6_DROP_MEMBERSHIP,&opt,sizeof opt);
+  return winsock2errno(setsockopt(s,IPPROTO_IPV6,IPV6_DROP_MEMBERSHIP,&opt,sizeof opt));
 #else
   errno=EPROTONOSUPPORT;
   return -1;
diff --git a/socket/socket_mcloop4.c b/socket/socket_mcloop4.c
index eec742d..e670da2 100644
--- a/socket/socket_mcloop4.c
+++ b/socket/socket_mcloop4.c
@@ -1,11 +1,14 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 
 int socket_mcloop4(int s,char loop)
 {
-  return setsockopt(s,IPPROTO_IP,IP_MULTICAST_LOOP,&loop,sizeof loop);
+  return winsock2errno(setsockopt(s,IPPROTO_IP,IP_MULTICAST_LOOP,&loop,sizeof loop));
 }
 
diff --git a/socket/socket_mcloop6.c b/socket/socket_mcloop6.c
index 88cce9b..7c94549 100644
--- a/socket/socket_mcloop6.c
+++ b/socket/socket_mcloop6.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "haveip6.h"
 
@@ -9,11 +12,11 @@ int socket_mcloop6(int s,char loop)
 {
 #ifdef LIBC_HAS_IP6
   if (noipv6)
-    return setsockopt(s,IPPROTO_IP,IP_MULTICAST_LOOP,&loop,sizeof loop);
+    return winsock2errno(setsockopt(s,IPPROTO_IP,IP_MULTICAST_LOOP,&loop,sizeof loop));
   else
-    return setsockopt(s,IPPROTO_IPV6,IPV6_MULTICAST_LOOP,&loop,sizeof loop);
+    return winsock2errno(setsockopt(s,IPPROTO_IPV6,IPV6_MULTICAST_LOOP,&loop,sizeof loop));
 #else
-  return setsockopt(s,IPPROTO_IP,IP_MULTICAST_LOOP,&loop,sizeof loop);
+  return winsock2errno(setsockopt(s,IPPROTO_IP,IP_MULTICAST_LOOP,&loop,sizeof loop));
 #endif
 }
 
diff --git a/socket/socket_mcttl4.c b/socket/socket_mcttl4.c
index 44316de..eff9a73 100644
--- a/socket/socket_mcttl4.c
+++ b/socket/socket_mcttl4.c
@@ -1,11 +1,14 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 
 int socket_mcttl4(int s,char TTL)
 {
-  return setsockopt(s,IPPROTO_IP,IP_MULTICAST_TTL,&TTL,sizeof TTL);
+  return winsock2errno(setsockopt(s,IPPROTO_IP,IP_MULTICAST_TTL,&TTL,sizeof TTL));
 }
 
diff --git a/socket/socket_recv4.c b/socket/socket_recv4.c
index f48f640..8f1065b 100644
--- a/socket/socket_recv4.c
+++ b/socket/socket_recv4.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 #include "havesl.h"
 
@@ -10,7 +13,7 @@ int socket_recv4(int s,char *buf,unsigned int len,char ip[4],uint16 *port) {
   socklen_t Len = sizeof si;
   int r;
 
-  if ((r = recvfrom(s,buf,len,0,(struct sockaddr *) &si,&Len))<0) return -1;
+  if ((r = recvfrom(s,buf,len,0,(struct sockaddr *) &si,&Len))<0) return winsock2errno(-1);
   if (ip) *(uint32*)ip = *(uint32*)&si.sin_addr;
   if (port) uint16_unpack_big((char *) &si.sin_port,port);
   return r;
diff --git a/socket/socket_recv6.c b/socket/socket_recv6.c
index b04acc2..78bad0c 100644
--- a/socket/socket_recv6.c
+++ b/socket/socket_recv6.c
@@ -1,12 +1,16 @@
 #include <sys/param.h>
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 #include "ip6.h"
 #include "haveip6.h"
 #include "havesl.h"
+#include "havescope.h"
 
 int socket_recv6(int s,char *buf,unsigned int len,char ip[16],uint16 *port,uint32 *scope_id)
 {
@@ -19,7 +23,7 @@ int socket_recv6(int s,char *buf,unsigned int len,char ip[16],uint16 *port,uint3
   int r;
 
   byte_zero(&si,Len);
-  if ((r = recvfrom(s,buf,len,0,(struct sockaddr *) &si,&Len))<0) return -1;
+  if ((r = recvfrom(s,buf,len,0,(struct sockaddr *) &si,&Len))<0) return winsock2errno(-1);
 
 #ifdef LIBC_HAS_IP6
   if (noipv6) {
@@ -33,7 +37,11 @@ int socket_recv6(int s,char *buf,unsigned int len,char ip[16],uint16 *port,uint3
   }
   if (ip) byte_copy(ip,16,(char *) &si.sin6_addr);
   if (port) uint16_unpack_big((char *) &si.sin6_port,port);
+#ifdef HAVE_SCOPE_ID
   if (scope_id) *scope_id=si.sin6_scope_id;
+#else
+  if (scope_id) *scope_id=0;
+#endif
 #else
   if (ip) {
     byte_copy(ip,12,(char *)V4mappedprefix);
diff --git a/socket/socket_remote4.c b/socket/socket_remote4.c
index 4ab4028..d36044e 100644
--- a/socket/socket_remote4.c
+++ b/socket/socket_remote4.c
@@ -1,17 +1,21 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 #include "havesl.h"
+#include "havescope.h"
 
 int socket_remote4(int s,char ip[4],uint16 *port)
 {
   struct sockaddr_in si;
   socklen_t len = sizeof si;
 
-  if (getpeername(s,(struct sockaddr *) &si,&len) == -1) return -1;
+  if (getpeername(s,(struct sockaddr *) &si,&len) == -1) return winsock2errno(-1);
   if (ip) *(uint32*)ip = *(uint32*)&si.sin_addr;
   if (port) uint16_unpack_big((char *) &si.sin_port,port);
   return 0;
diff --git a/socket/socket_remote6.c b/socket/socket_remote6.c
index 0f3f4a7..fc02ca2 100644
--- a/socket/socket_remote6.c
+++ b/socket/socket_remote6.c
@@ -1,13 +1,17 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 #include "ip6.h"
 #include "haveip6.h"
 #include "uint32.h"
 #include "havesl.h"
+#include "havescope.h"
 
 int socket_remote6(int s,char ip[16],uint16 *port,uint32 *scope_id)
 {
@@ -18,7 +22,7 @@ int socket_remote6(int s,char ip[16],uint16 *port,uint32 *scope_id)
 #endif
   socklen_t len = sizeof si;
 
-  if (getpeername(s,(struct sockaddr *) &si,&len) == -1) return -1;
+  if (getpeername(s,(struct sockaddr *) &si,&len) == -1) return winsock2errno(-1);
 #ifdef LIBC_HAS_IP6
   if (si.sin6_family==AF_INET) {
     struct sockaddr_in *si4=(struct sockaddr_in*)&si;
@@ -31,7 +35,11 @@ int socket_remote6(int s,char ip[16],uint16 *port,uint32 *scope_id)
   }
   if (ip) byte_copy(ip,16,(char *) &si.sin6_addr);
   if (port) uint16_unpack_big((char *) &si.sin6_port,port);
+#ifdef HAVE_SCOPE_ID
   if (scope_id) *scope_id=si.sin6_scope_id;
+#else
+  if (scope_id) *scope_id=0;
+#endif
 #else
   if (ip) {
     byte_copy(ip,12,V4mappedprefix);
diff --git a/socket/socket_send4.c b/socket/socket_send4.c
index e76a603..f18362d 100644
--- a/socket/socket_send4.c
+++ b/socket/socket_send4.c
@@ -1,7 +1,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include "byte.h"
 #include "socket.h"
 
@@ -12,5 +15,5 @@ int socket_send4(int s,const char *buf,unsigned int len,const char ip[4],uint16
   si.sin_family = AF_INET;
   uint16_pack_big((char*) &si.sin_port,port);
   *((uint32*)&si.sin_addr) = *((uint32*)ip);
-  return sendto(s,buf,len,0,(struct sockaddr *) &si,sizeof si);
+  return winsock2errno(sendto(s,buf,len,0,(struct sockaddr *) &si,sizeof si));
 }
diff --git a/socket/socket_send6.c b/socket/socket_send6.c
index 977397c..39d00aa 100644
--- a/socket/socket_send6.c
+++ b/socket/socket_send6.c
@@ -1,13 +1,17 @@
 #include <sys/types.h>
 #include <sys/param.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include <errno.h>
 #include "byte.h"
 #include "socket.h"
 #include "ip6.h"
 #include "haveip6.h"
 #include "ip4.h"
+#include "havescope.h"
 
 int socket_send6(int s,const char *buf,unsigned int len,const char ip[16],uint16 port,uint32 scope_id)
 {
@@ -32,7 +36,12 @@ int socket_send6(int s,const char *buf,unsigned int len,const char ip[16],uint16
   si.sin6_family = AF_INET6;
   uint16_pack_big((char *) &si.sin6_port,port);
   byte_copy((char *) &si.sin6_addr,16,ip);
-  return sendto(s,buf,len,0,(struct sockaddr *) &si,sizeof si);
+#ifdef HAVE_SCOPE_ID
+  si.sin6_scope_id=scope_id;
+#else
+  si.sin6_scope_id=0;
+#endif
+  return winsock2errno(sendto(s,buf,len,0,(struct sockaddr *) &si,sizeof si));
 #else
   errno=EPROTONOSUPPORT;
   return -1;
diff --git a/socket/socket_tcp4.c b/socket/socket_tcp4.c
index b1ab3e7..d36e8a6 100644
--- a/socket/socket_tcp4.c
+++ b/socket/socket_tcp4.c
@@ -1,9 +1,12 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
-
+#endif
+#include "windoze.h"
 #include "socket.h"
 
 int socket_tcp4(void) {
-  return socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
+  __winsock_init();
+  return winsock2errno(socket(PF_INET,SOCK_STREAM,IPPROTO_TCP));
 }
diff --git a/socket/socket_tcp6.c b/socket/socket_tcp6.c
index c82887d..bef1eba 100644
--- a/socket/socket_tcp6.c
+++ b/socket/socket_tcp6.c
@@ -1,6 +1,9 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include <errno.h>
 #include "haveip6.h"
 #include "socket.h"
@@ -14,8 +17,9 @@ int socket_tcp6(void)
 #ifdef LIBC_HAS_IP6
   int s;
 
+  __winsock_init();
   if (noipv6) goto compat;
-  s = socket(PF_INET6,SOCK_STREAM,0);
+  s = winsock2errno(socket(PF_INET6,SOCK_STREAM,0));
   if (s == -1) {
     if (errno == EINVAL || errno == EAFNOSUPPORT) {
 compat:
@@ -28,7 +32,7 @@ compat:
 #ifdef IPV6_V6ONLY
   {
     int zero=0;
-    setsockopt(s,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&zero,sizeof(zero));
+    winsock2errno(setsockopt(s,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&zero,sizeof(zero)));
   }
 #endif
   return s;
diff --git a/socket/socket_tryreservein.c b/socket/socket_tryreservein.c
index a481c20..3cfb025 100644
--- a/socket/socket_tryreservein.c
+++ b/socket/socket_tryreservein.c
@@ -1,11 +1,14 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
+#endif
+#include "windoze.h"
 #include "socket.h"
 
 void socket_tryreservein(int s,int size)
 {
   while (size >= 1024) {
-    if (setsockopt(s,SOL_SOCKET,SO_RCVBUF,&size,sizeof size) == 0) return;
+    if (winsock2errno(setsockopt(s,SOL_SOCKET,SO_RCVBUF,&size,sizeof size)) == 0) return;
     size -= (size >> 5);
   }
 }
diff --git a/socket/socket_udp4.c b/socket/socket_udp4.c
index b9892b4..c1f4104 100644
--- a/socket/socket_udp4.c
+++ b/socket/socket_udp4.c
@@ -1,9 +1,13 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 
 #include "socket.h"
 
 int socket_udp4(void) {
-  return socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
+  __winsock_init();
+  return winsock2errno(socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP));
 }
diff --git a/socket/socket_udp6.c b/socket/socket_udp6.c
index 3769b1d..d783d99 100644
--- a/socket/socket_udp6.c
+++ b/socket/socket_udp6.c
@@ -1,6 +1,9 @@
 #include <sys/types.h>
+#ifndef __MINGW32__
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
+#include "windoze.h"
 #include <errno.h>
 #include "haveip6.h"
 #include "socket.h"
@@ -14,12 +17,13 @@ int socket_udp6(void)
 #ifdef LIBC_HAS_IP6
   int s;
 
+  __winsock_init();
   if (noipv6) goto compat;
-  s = socket(PF_INET6,SOCK_DGRAM,0);
+  s = winsock2errno(socket(PF_INET6,SOCK_DGRAM,0));
   if (s == -1) {
     if (errno == EINVAL || errno == EAFNOSUPPORT) {
 compat:
-      s=socket(AF_INET,SOCK_DGRAM,0);
+      s=winsock2errno(socket(AF_INET,SOCK_DGRAM,0));
       noipv6=1;
       if (s==-1) return -1;
     } else
@@ -28,7 +32,7 @@ compat:
 #ifdef IPV6_V6ONLY
   {
     int zero=0;
-    setsockopt(s,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&zero,sizeof(zero));
+    winsock2errno(setsockopt(s,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&zero,sizeof(zero)));
   }
 #endif
   return s;
diff --git a/taia/taia_now.c b/taia/taia_now.c
index ccc260d..54d5837 100644
--- a/taia/taia_now.c
+++ b/taia/taia_now.c
@@ -1,12 +1,29 @@
 #include <sys/types.h>
 #include <sys/time.h>
 #include "taia.h"
+#ifdef __MINGW32__
+#include <windows.h>
+#endif
 
 void taia_now(struct taia *t)
 {
+#ifdef __MINGW32__
+  union {
+    FILETIME f;
+    unsigned long long l;
+  } fnord;
+  GetSystemTimeAsFileTime(&fnord.f);
+  /* 64-bit value representing the number of 100-nanosecond intervals
+   * since January 1, 1601 (UTC) */
+  fnord.l-=((long long)(1970-1601))*365*24*60*60;
+  t->sec.x=fnord.l/10000000;
+  t->nano=((fnord.l+5)/10)%1000000;
+  t->atto=0;
+#else
   struct timeval now;
   gettimeofday(&now,(struct timezone *) 0);
   tai_unix(&t->sec,now.tv_sec);
   t->nano = 1000 * now.tv_usec + 500;
   t->atto = 0;
+#endif
 }
diff --git a/trydevpoll.c b/trydevpoll.c
new file mode 100644
index 0000000..95e94f8
--- /dev/null
+++ b/trydevpoll.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <poll.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <strings.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/errno.h>
+#include <netinet/in.h>
+#include <sys/devpoll.h>
+
+main() {
+  int fd=open("/dev/poll",O_RDWR);
+  struct pollfd p[100];
+  int i,r;
+  dvpoll_t timeout;
+  p[0].fd=0;
+  p[0].events=POLLIN;
+  write(fd,p,sizeof(struct pollfd));
+  timeout.dp_timeout=100;	/* milliseconds? */
+  timeout.dp_nfds=1;
+  timeout.dp_fds=p;
+  r=ioctl(fd,DP_POLL,&timeout);
+  for (i=0; i<r; ++i)
+    printf("event %d on fd #%d\n",p[i].revents,p[i].fd);
+}
diff --git a/tryscope.c b/tryscope.c
new file mode 100644
index 0000000..0b1c139
--- /dev/null
+++ b/tryscope.c
@@ -0,0 +1,9 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+main() {
+  struct sockaddr_in6 sa;
+  sa.sin6_family = PF_INET6;
+  sa.sin6_scope_id = 23;
+}
diff --git a/trysl.c b/trysl.c
index 5a5b355..a617b24 100644
--- a/trysl.c
+++ b/trysl.c
@@ -1,6 +1,11 @@
 #include <sys/types.h>
+#ifdef __MINGW32__
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
 #include <sys/socket.h>
 #include <netinet/in.h>
+#endif
 
 main() {
   socklen_t t;
diff --git a/unix/iopause.c b/unix/iopause.c
index b8034de..0ae7533 100644
--- a/unix/iopause.c
+++ b/unix/iopause.c
@@ -1,6 +1,10 @@
 #include "taia.h"
-#include "select.h"
 #include "iopause.h"
+#ifdef __MINGW32__
+#include <winsock2.h>
+#else
+#include "select.h"
+#endif
 
 void iopause(iopause_fd *x,unsigned int len,struct taia *deadline,struct taia *stamp)
 {
diff --git a/unix/ndelay_off.c b/unix/ndelay_off.c
index 0748fd6..b26c89b 100644
--- a/unix/ndelay_off.c
+++ b/unix/ndelay_off.c
@@ -3,10 +3,20 @@
 
 #include "ndelay.h"
 
+#ifdef __MINGW32__
+#include <winsock2.h>
+#include "windoze.h"
+#endif
+
 #ifndef O_NDELAY
 #define O_NDELAY O_NONBLOCK
 #endif
 
 int ndelay_off(int fd) {
+#ifdef __MINGW32__
+  unsigned long i=1;
+  return winsock2errno(ioctlsocket( fd, FIONBIO, &i));
+#else
   return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) & ~O_NDELAY);
+#endif
 }
diff --git a/unix/ndelay_on.c b/unix/ndelay_on.c
index fc80eb2..64e9036 100644
--- a/unix/ndelay_on.c
+++ b/unix/ndelay_on.c
@@ -3,10 +3,20 @@
 
 #include "ndelay.h"
 
+#ifdef __MINGW32__
+#include <winsock2.h>
+#include "windoze.h"
+#endif
+
 #ifndef O_NDELAY
 #define O_NDELAY O_NONBLOCK
 #endif
 
 int ndelay_on(int fd) {
+#ifdef __MINGW32__
+  unsigned long i=0;
+  return winsock2errno(ioctlsocket( fd, FIONBIO, &i));
+#else
   return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) | O_NDELAY);
+#endif
 }