Add missing windows portability definitions.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/windows_port.cc b/src/windows_port.cc
new file mode 100644
index 0000000..d122673
--- /dev/null
+++ b/src/windows_port.cc
@@ -0,0 +1,62 @@
+/* Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Craig Silverstein
+ */
+
+#ifndef _WIN32
+# error You should only be including windows/port.cc in a windows environment!
+#endif
+
+#include <config.h>
+#include <string.h>    // for strlen(), memset(), memcmp()
+#include <assert.h>
+#include <stdarg.h>    // for va_list, va_start, va_end
+#include <windows.h>
+#include "windows_port.h"
+
+// These call the windows _vsnprintf, but always NUL-terminate.
+#if !defined(__MINGW32__) && !defined(__MINGW64__)  /* mingw already defines */
+int safe_vsnprintf(char *str, size_t size, const char *format, va_list ap) {
+  if (size == 0)        // not even room for a \0?
+    return -1;          // not what C99 says to do, but what windows does
+  str[size-1] = '\0';
+  return _vsnprintf(str, size-1, format, ap);
+}
+
+int snprintf(char *str, size_t size, const char *format, ...) {
+  int r;
+  va_list ap;
+  va_start(ap, format);
+  r = vsnprintf(str, size, format, ap);
+  va_end(ap);
+  return r;
+}
+#endif  /* #if !defined(__MINGW32__) && !defined(__MINGW64__) */