Re-establish the fp overflow detection for VAX VMS; there

[p5sagit/p5-mst-13.2.git] / win32 / win32sck.c

diff --git a/win32/win32sck.c b/win32/win32sck.c
index 93d501e..3edeefd 100644 (file)
--- a/win32/win32sck.c
+++ b/win32/win32sck.c
@@ -11,6 +11,7 @@
 #define WIN32IO_IS_STDIO
 #define WIN32SCK_IS_STDSCK
 #define WIN32_LEAN_AND_MEAN
+#define PERLIO_NOT_STDIO 0
 #ifdef __GNUC__
 #define Win32_Winsock
 #endif
@@ -39,12 +40,12 @@
 #      define TO_SOCKET(x)     (x)
 #endif /* USE_SOCKETS_AS_HANDLES */
 
-#ifdef USE_THREADS
+#if defined(USE_THREADS) || defined(USE_ITHREADS)
 #define StartSockets() \
     STMT_START {                                       \
        if (!wsock_started)                             \
            start_sockets();                            \
-       set_socktype();                         \
+       set_socktype();                                 \
     } STMT_END
 #else
 #define StartSockets() \
@@ -56,12 +57,6 @@
     } STMT_END
 #endif
 
-#define EndSockets() \
-    STMT_START {                                       \
-       if (wsock_started)                              \
-           WSACleanup();                               \
-    } STMT_END
-
 #define SOCKET_TEST(x, y) \
     STMT_START {                                       \
        StartSockets();                                 \
@@ -77,6 +72,13 @@ static struct servent* win32_savecopyservent(struct servent*d,
 
 static int wsock_started = 0;
 
+EXTERN_C void
+EndSockets(void)
+{
+    if (wsock_started)
+       WSACleanup();
+}
+
 void
 start_sockets(void) 
 {
@@ -103,8 +105,8 @@ void
 set_socktype(void)
 {
 #ifdef USE_SOCKETS_AS_HANDLES
-#ifdef USE_THREADS
-    dTHX;
+#if defined(USE_THREADS) || defined(USE_ITHREADS)
+    dTHXo;
     if (!w32_init_socktype) {
 #endif
        int iSockOpt = SO_SYNCHRONOUS_NONALERT;
@@ -113,7 +115,7 @@ set_socktype(void)
         */
        setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE,
                    (char *)&iSockOpt, sizeof(iSockOpt));
-#ifdef USE_THREADS
+#if defined(USE_THREADS) || defined(USE_ITHREADS)
        w32_init_socktype = 1;
     }
 #endif
@@ -142,7 +144,7 @@ my_fdopen(int fd, char *mode)
     /*
      * If we get here, then fd is actually a socket.
      */
-    Newz(1310, fp, 1, FILE);
+    Newz(1310, fp, 1, FILE);   /* XXX leak, good thing this code isn't used */
     if(fp == NULL) {
        errno = ENOMEM;
        return NULL;
@@ -417,22 +419,109 @@ 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) {
+#if defined(USE_FIXED_OSFHANDLE) || defined(PERL_MSVCRT_READFIX)
+            _set_osfhnd(fd, INVALID_HANDLE_VALUE);
+#endif
+           (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) {
+#if defined(USE_FIXED_OSFHANDLE) || defined(PERL_MSVCRT_READFIX)
+            _set_osfhnd(win32_fileno(pf), INVALID_HANDLE_VALUE);
+#endif
+           (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);
+}
+
+#undef fstat
+int
+my_fstat(int fd, struct stat *sbufptr)
+{
+    /* This fixes a bug in fstat() on Windows 9x.  fstat() uses the
+     * GetFileType() win32 syscall, which will fail on Windows 9x.
+     * So if we recognize a socket on Windows 9x, we return the
+     * same results as on Windows NT/2000.
+     * XXX this should be extended further to set S_IFSOCK on
+     * sbufptr->st_mode.
+     */
+    int osf;
+    if (!wsock_started || IsWinNT())
+       return fstat(fd, sbufptr);
+
+    osf = TO_SOCKET(fd);
+    if (osf != -1) {
+       char sockbuf[256];
+       int optlen = sizeof(sockbuf);
+       int retval;
+
+       retval = getsockopt((SOCKET)osf, SOL_SOCKET, SO_TYPE, sockbuf, &optlen);
+       if (retval != SOCKET_ERROR || WSAGetLastError() != WSAENOTSOCK) {
+#if defined(__BORLANDC__)&&(__BORLANDC__<=0x520)
+           sbufptr->st_mode = S_IFIFO;
+#else
+           sbufptr->st_mode = _S_IFIFO;
+#endif
+           sbufptr->st_rdev = sbufptr->st_dev = (dev_t)fd;
+           sbufptr->st_nlink = 1;
+           sbufptr->st_uid = sbufptr->st_gid = sbufptr->st_ino = 0;
+           sbufptr->st_atime = sbufptr->st_mtime = sbufptr->st_ctime = 0;
+           sbufptr->st_size = (off_t)0;
+           return 0;
+       }
+    }
+    return fstat(fd, sbufptr);
 }
 
 struct hostent *