X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/c53bd28a003b43d77a08bf70a3cb54001d1f4afe..500c19467028989935b081c5fb7b8b33ffb86d40:/win32/win32sck.c

diff --git a/win32/win32sck.c b/win32/win32sck.c
index 64d1a0a..22cc72e 100644
--- a/win32/win32sck.c
+++ b/win32/win32sck.c
@@ -1,7 +1,7 @@
 /* win32sck.c
  *
  * (c) 1995 Microsoft Corporation. All rights reserved. 
- * 		Developed by hip communications inc., http://info.hip.com/info/
+ * 		Developed by hip communications inc.
  * Portions (c) 1993 Intergraph Corporation. All rights reserved.
  *
  *    You may distribute under the terms of either the GNU General Public
@@ -11,12 +11,17 @@
 #define WIN32IO_IS_STDIO
 #define WIN32SCK_IS_STDSCK
 #define WIN32_LEAN_AND_MEAN
+#define PERLIO_NOT_STDIO 0
 #ifdef __GNUC__
 #define Win32_Winsock
 #endif
 #include <windows.h>
+#include <ws2spi.h>
+
 #include "EXTERN.h"
 #include "perl.h"
+
+#include "Win32iop.h"
 #include <sys/socket.h>
 #include <fcntl.h>
 #include <sys/stat.h>
@@ -25,7 +30,7 @@
 
 /* thanks to Beverly Brown	(beverly@datacube.com) */
 #ifdef USE_SOCKETS_AS_HANDLES
-#	define OPEN_SOCKET(x)	_open_osfhandle(x,O_RDWR|O_BINARY)
+#	define OPEN_SOCKET(x)	win32_open_osfhandle(x,O_RDWR|O_BINARY)
 #	define TO_SOCKET(x)	_get_osfhandle(x)
 #else
 #	define OPEN_SOCKET(x)	(x)
@@ -38,12 +43,6 @@
 	    start_sockets();				\
     } STMT_END
 
-#define EndSockets() \
-    STMT_START {					\
-	if (wsock_started)				\
-	    WSACleanup();				\
-    } STMT_END
-
 #define SOCKET_TEST(x, y) \
     STMT_START {					\
 	StartSockets();					\
@@ -57,49 +56,37 @@ static struct servent* win32_savecopyservent(struct servent*d,
                                              struct servent*s,
                                              const char *proto);
 
-#ifdef USE_THREADS
-#ifdef USE_DECLSPEC_THREAD
-__declspec(thread) struct servent myservent;
-#else
-#define myservent (thr->i.Wservent)
-#endif
-#else
-static struct servent myservent;
-#endif
-
 static int wsock_started = 0;
 
+EXTERN_C void
+EndSockets(void)
+{
+    if (wsock_started)
+	WSACleanup();
+}
+
 void
 start_sockets(void) 
 {
+    dTHX;
     unsigned short version;
     WSADATA retdata;
     int ret;
-    int iSockOpt = SO_SYNCHRONOUS_NONALERT;
 
     /*
      * initalize the winsock interface and insure that it is
      * cleaned up at exit.
      */
-    version = 0x101;
+    version = 0x2;
     if(ret = WSAStartup(version, &retdata))
-	croak("Unable to locate winsock library!\n");
+	Perl_croak_nocontext("Unable to locate winsock library!\n");
     if(retdata.wVersion != version)
-	croak("Could not find version 1.1 of winsock dll\n");
+	Perl_croak_nocontext("Could not find version 2.0 of winsock dll\n");
 
     /* atexit((void (*)(void)) EndSockets); */
-
-#ifdef USE_SOCKETS_AS_HANDLES
-    /*
-     * Enable the use of sockets as filehandles
-     */
-    setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE,
-		(char *)&iSockOpt, sizeof(iSockOpt));
-#endif	/* USE_SOCKETS_AS_HANDLES */
     wsock_started = 1;
 }
 
-
 #ifndef USE_SOCKETS_AS_HANDLES
 #undef fdopen
 FILE *
@@ -121,7 +108,7 @@ my_fdopen(int fd, char *mode)
     /*
      * If we get here, then fd is actually a socket.
      */
-    Newz(1310, fp, 1, FILE);
+    Newxz(fp, 1, FILE);	/* XXX leak, good thing this code isn't used */
     if(fp == NULL) {
 	errno = ENOMEM;
 	return NULL;
@@ -254,8 +241,15 @@ int
 win32_recvfrom(SOCKET s, char *buf, int len, int flags, struct sockaddr *from, int *fromlen)
 {
     int r;
+    int frombufsize = *fromlen;
 
     SOCKET_TEST_ERROR(r = recvfrom(TO_SOCKET(s), buf, len, flags, from, fromlen));
+    /* Winsock's recvfrom() only returns a valid 'from' when the socket
+     * is connectionless.  Perl expects a valid 'from' for all types
+     * of sockets, so go the extra mile.
+     */
+    if (r != SOCKET_ERROR && frombufsize == *fromlen)
+	(void)win32_getpeername(s, from, fromlen);
     return r;
 }
 
@@ -265,48 +259,67 @@ win32_select(int nfds, Perl_fd_set* rd, Perl_fd_set* wr, Perl_fd_set* ex, const
 {
     int r;
 #ifdef USE_SOCKETS_AS_HANDLES
-    Perl_fd_set dummy;
-    int i, fd, bit, offset;
-    FD_SET nrd, nwr, nex, *prd, *pwr, *pex;
+    int i, fd, save_errno = errno;
+    FD_SET nrd, nwr, nex;
+    bool just_sleep = TRUE;
 
-    PERL_FD_ZERO(&dummy);
-    if (!rd)
-	rd = &dummy, prd = NULL;
-    else
-	prd = &nrd;
-    if (!wr)
-	wr = &dummy, pwr = NULL;
-    else
-	pwr = &nwr;
-    if (!ex)
-	ex = &dummy, pex = NULL;
-    else
-	pex = &nex;
+    StartSockets();
 
     FD_ZERO(&nrd);
     FD_ZERO(&nwr);
     FD_ZERO(&nex);
     for (i = 0; i < nfds; i++) {
-	fd = TO_SOCKET(i);
-	if (PERL_FD_ISSET(i,rd))
-	    FD_SET(fd, &nrd);
-	if (PERL_FD_ISSET(i,wr))
-	    FD_SET(fd, &nwr);
-	if (PERL_FD_ISSET(i,ex))
-	    FD_SET(fd, &nex);
+	if (rd && PERL_FD_ISSET(i,rd)) {
+	    fd = TO_SOCKET(i);
+	    FD_SET((unsigned)fd, &nrd);
+            just_sleep = FALSE;
+	}
+	if (wr && PERL_FD_ISSET(i,wr)) {
+	    fd = TO_SOCKET(i);
+	    FD_SET((unsigned)fd, &nwr);
+            just_sleep = FALSE;
+	}
+	if (ex && PERL_FD_ISSET(i,ex)) {
+	    fd = TO_SOCKET(i);
+	    FD_SET((unsigned)fd, &nex);
+            just_sleep = FALSE;
+	}
     }
 
-    SOCKET_TEST_ERROR(r = select(nfds, prd, pwr, pex, timeout));
+    /* winsock seems incapable of dealing with all three fd_sets being empty,
+     * so do the (millisecond) sleep as a special case
+     */
+    if (just_sleep) {
+	if (timeout)
+	    Sleep(timeout->tv_sec  * 1000 +
+		  timeout->tv_usec / 1000);	/* do the best we can */
+	else
+	    Sleep(UINT_MAX);
+	return 0;
+    }
+
+    errno = save_errno;
+    SOCKET_TEST_ERROR(r = select(nfds, &nrd, &nwr, &nex, timeout));
+    save_errno = errno;
 
     for (i = 0; i < nfds; i++) {
-	fd = TO_SOCKET(i);
-	if (PERL_FD_ISSET(i,rd) && !FD_ISSET(fd, &nrd))
-	    PERL_FD_CLR(i,rd);
-	if (PERL_FD_ISSET(i,wr) && !FD_ISSET(fd, &nwr))
-	    PERL_FD_CLR(i,wr);
-	if (PERL_FD_ISSET(i,ex) && !FD_ISSET(fd, &nex))
-	    PERL_FD_CLR(i,ex);
+	if (rd && PERL_FD_ISSET(i,rd)) {
+	    fd = TO_SOCKET(i);
+	    if (!FD_ISSET(fd, &nrd))
+		PERL_FD_CLR(i,rd);
+	}
+	if (wr && PERL_FD_ISSET(i,wr)) {
+	    fd = TO_SOCKET(i);
+	    if (!FD_ISSET(fd, &nwr))
+		PERL_FD_CLR(i,wr);
+	}
+	if (ex && PERL_FD_ISSET(i,ex)) {
+	    fd = TO_SOCKET(i);
+	    if (!FD_ISSET(fd, &nex))
+		PERL_FD_CLR(i,ex);
+	}
     }
+    errno = save_errno;
 #else
     SOCKET_TEST_ERROR(r = select(nfds, rd, wr, ex, timeout));
 #endif
@@ -359,6 +372,71 @@ win32_closesocket(SOCKET s)
     return r;
 }
 
+#ifdef USE_SOCKETS_AS_HANDLES
+#define WIN32_OPEN_SOCKET(af, type, protocol) open_ifs_socket(af, type, protocol)
+
+void
+convert_proto_info_w2a(WSAPROTOCOL_INFOW *in, WSAPROTOCOL_INFOA *out)
+{
+    Copy(in, out, 1, WSAPROTOCOL_INFOA);
+    wcstombs(out->szProtocol, in->szProtocol, sizeof(out->szProtocol));
+}
+
+SOCKET
+open_ifs_socket(int af, int type, int protocol)
+{
+    dTHX;
+    char *s;
+    unsigned long proto_buffers_len = 0;
+    int error_code;
+    SOCKET out = INVALID_SOCKET;
+
+    if ((s = PerlEnv_getenv("PERL_ALLOW_NON_IFS_LSP")) && atoi(s))
+        return WSASocket(af, type, protocol, NULL, 0, 0);
+
+    if (WSCEnumProtocols(NULL, NULL, &proto_buffers_len, &error_code) == SOCKET_ERROR
+        && error_code == WSAENOBUFS)
+    {
+	WSAPROTOCOL_INFOW *proto_buffers;
+        int protocols_available = 0;       
+ 
+        Newx(proto_buffers, proto_buffers_len / sizeof(WSAPROTOCOL_INFOW),
+            WSAPROTOCOL_INFOW);
+
+        if ((protocols_available = WSCEnumProtocols(NULL, proto_buffers, 
+            &proto_buffers_len, &error_code)) != SOCKET_ERROR)
+        {
+            int i;
+            for (i = 0; i < protocols_available; i++)
+            {
+                WSAPROTOCOL_INFOA proto_info;
+
+                if ((af != AF_UNSPEC && af != proto_buffers[i].iAddressFamily)
+                    || (type != proto_buffers[i].iSocketType)
+                    || (protocol != 0 && proto_buffers[i].iProtocol != 0 &&
+                        protocol != proto_buffers[i].iProtocol))
+                    continue;
+
+                if ((proto_buffers[i].dwServiceFlags1 & XP1_IFS_HANDLES) == 0)
+                    continue;
+
+                convert_proto_info_w2a(&(proto_buffers[i]), &proto_info);
+
+                out = WSASocket(af, type, protocol, &proto_info, 0, 0);
+                break;
+            }
+        }
+
+        Safefree(proto_buffers);
+    }
+
+    return out;
+}
+
+#else
+#define WIN32_OPEN_SOCKET(af, type, protocol) socket(af, type, protocol)
+#endif
+
 SOCKET
 win32_socket(int af, int type, int protocol)
 {
@@ -368,7 +446,8 @@ win32_socket(int af, int type, int protocol)
     SOCKET_TEST(s = socket(af, type, protocol), INVALID_SOCKET);
 #else
     StartSockets();
-    if((s = socket(af, type, protocol)) == INVALID_SOCKET)
+
+    if((s = WIN32_OPEN_SOCKET(af, type, protocol)) == INVALID_SOCKET)
 	errno = WSAGetLastError();
     else
 	s = OPEN_SOCKET(s);
@@ -377,22 +456,64 @@ win32_socket(int af, int type, int protocol)
     return s;
 }
 
+/*
+ * close RTL fd while respecting sockets
+ * added as temporary measure until PerlIO has real
+ * Win32 native layer
+ *   -- BKS, 11-11-2000
+*/
+
+int my_close(int fd)
+{
+    int osf;
+    if (!wsock_started)		/* No WinSock? */
+	return(close(fd));	/* Then not a socket. */
+    osf = TO_SOCKET(fd);/* Get it now before it's gone! */
+    if (osf != -1) {
+	int err;
+	err = closesocket(osf);
+	if (err == 0) {
+	    (void)close(fd);	/* handle already closed, ignore error */
+	    return 0;
+	}
+	else if (err == SOCKET_ERROR) {
+	    err = WSAGetLastError();
+	    if (err != WSAENOTSOCK) {
+		(void)close(fd);
+		errno = err;
+		return EOF;
+	    }
+	}
+    }
+    return close(fd);
+}
+
 #undef fclose
 int
 my_fclose (FILE *pf)
 {
-    int osf, retval;
+    int osf;
     if (!wsock_started)		/* No WinSock? */
 	return(fclose(pf));	/* Then not a socket. */
-    osf = TO_SOCKET(fileno(pf));/* Get it now before it's gone! */
-    retval = fclose(pf);	/* Must fclose() before closesocket() */
-    if (osf != -1
-	&& closesocket(osf) == SOCKET_ERROR
-	&& WSAGetLastError() != WSAENOTSOCK)
-    {
-	return EOF;
+    osf = TO_SOCKET(win32_fileno(pf));/* Get it now before it's gone! */
+    if (osf != -1) {
+	int err;
+	win32_fflush(pf);
+	err = closesocket(osf);
+	if (err == 0) {
+	    (void)fclose(pf);	/* handle already closed, ignore error */
+	    return 0;
+	}
+	else if (err == SOCKET_ERROR) {
+	    err = WSAGetLastError();
+	    if (err != WSAENOTSOCK) {
+		(void)fclose(pf);
+		errno = err;
+		return EOF;
+	    }
+	}
     }
-    return retval;
+    return fclose(pf);
 }
 
 struct hostent *
@@ -443,12 +564,12 @@ win32_getprotobynumber(int num)
 struct servent *
 win32_getservbyname(const char *name, const char *proto)
 {
+    dTHX;    
     struct servent *r;
-    dTHR;    
 
     SOCKET_TEST(r = getservbyname(name, proto), NULL);
     if (r) {
-	r = win32_savecopyservent(&myservent, r, proto);
+	r = win32_savecopyservent(&w32_servent, r, proto);
     }
     return r;
 }
@@ -456,16 +577,43 @@ win32_getservbyname(const char *name, const char *proto)
 struct servent *
 win32_getservbyport(int port, const char *proto)
 {
+    dTHX; 
     struct servent *r;
-    dTHR; 
 
     SOCKET_TEST(r = getservbyport(port, proto), NULL);
     if (r) {
-	r = win32_savecopyservent(&myservent, r, proto);
+	r = win32_savecopyservent(&w32_servent, r, proto);
     }
     return r;
 }
 
+int
+win32_ioctl(int i, unsigned int u, char *data)
+{
+    dTHX;
+    u_long u_long_arg; 
+    int retval;
+    
+    if (!wsock_started) {
+	Perl_croak_nocontext("ioctl implemented only on sockets");
+	/* NOTREACHED */
+    }
+
+    /* mauke says using memcpy avoids alignment issues */
+    memcpy(&u_long_arg, data, sizeof u_long_arg); 
+    retval = ioctlsocket(TO_SOCKET(i), (long)u, &u_long_arg);
+    memcpy(data, &u_long_arg, sizeof u_long_arg);
+    
+    if (retval == SOCKET_ERROR) {
+	if (WSAGetLastError() == WSAENOTSOCK) {
+	    Perl_croak_nocontext("ioctl implemented only on sockets");
+	    /* NOTREACHED */
+	}
+	errno = WSAGetLastError();
+    }
+    return retval;
+}
+
 char FAR *
 win32_inet_ntoa(struct in_addr in)
 {
@@ -487,88 +635,101 @@ win32_inet_addr(const char FAR *cp)
 void
 win32_endhostent() 
 {
-    croak("endhostent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("endhostent not implemented!\n");
 }
 
 void
 win32_endnetent()
 {
-    croak("endnetent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("endnetent not implemented!\n");
 }
 
 void
 win32_endprotoent()
 {
-    croak("endprotoent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("endprotoent not implemented!\n");
 }
 
 void
 win32_endservent()
 {
-    croak("endservent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("endservent not implemented!\n");
 }
 
 
 struct netent *
 win32_getnetent(void) 
 {
-    croak("getnetent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("getnetent not implemented!\n");
     return (struct netent *) NULL;
 }
 
 struct netent *
 win32_getnetbyname(char *name) 
 {
-    croak("getnetbyname not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("getnetbyname not implemented!\n");
     return (struct netent *)NULL;
 }
 
 struct netent *
 win32_getnetbyaddr(long net, int type) 
 {
-    croak("getnetbyaddr not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("getnetbyaddr not implemented!\n");
     return (struct netent *)NULL;
 }
 
 struct protoent *
 win32_getprotoent(void) 
 {
-    croak("getprotoent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("getprotoent not implemented!\n");
     return (struct protoent *) NULL;
 }
 
 struct servent *
 win32_getservent(void) 
 {
-    croak("getservent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("getservent not implemented!\n");
     return (struct servent *) NULL;
 }
 
 void
 win32_sethostent(int stayopen)
 {
-    croak("sethostent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("sethostent not implemented!\n");
 }
 
 
 void
 win32_setnetent(int stayopen)
 {
-    croak("setnetent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("setnetent not implemented!\n");
 }
 
 
 void
 win32_setprotoent(int stayopen)
 {
-    croak("setprotoent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("setprotoent not implemented!\n");
 }
 
 
 void
 win32_setservent(int stayopen)
 {
-    croak("setservent not implemented!\n");
+    dTHX;
+    Perl_croak_nocontext("setservent not implemented!\n");
 }
 
 static struct servent*
@@ -577,12 +738,12 @@ win32_savecopyservent(struct servent*d, struct servent*s, const char *proto)
     d->s_name = s->s_name;
     d->s_aliases = s->s_aliases;
     d->s_port = s->s_port;
-#ifndef __BORLANDC__	/* Buggy on Win95 and WinNT-with-Borland-WSOCK */
-    if (!IsWin95() && s->s_proto && strlen(s->s_proto))
+#ifndef __BORLANDC__	/* Buggy on WinNT-with-Borland-WSOCK */
+    if (s->s_proto && strlen(s->s_proto))
 	d->s_proto = s->s_proto;
     else
 #endif
-	if (proto && strlen(proto))
+    if (proto && strlen(proto))
 	d->s_proto = (char *)proto;
     else
 	d->s_proto = "tcp";