MinGW32: define STRUNCATE

src/platform-win32.cc

Index: src/platform-win32.cc
diff --git a/src/platform-win32.cc b/src/platform-win32.cc
index b7eed47cba86c8d5490b479e2f0934e4fde8ea26..9b093e08930b2db9ffa27d2cef9fe1a1b1b2287f 100644
--- a/src/platform-win32.cc
+++ b/src/platform-win32.cc
@@ -143,17 +143,43 @@ int fopen_s(FILE** pFile, const char* filename, const char* mode) {
 }
 
 
+#define _TRUNCATE 0
+#define STRUNCATE 80
+
 int _vsnprintf_s(char* buffer, size_t sizeOfBuffer, size_t count,
                  const char* format, va_list argptr) {
+  ASSERT(count == _TRUNCATE);
   return _vsnprintf(buffer, sizeOfBuffer, format, argptr);
 }
-#define _TRUNCATE 0
 
 
-int strncpy_s(char* strDest, size_t numberOfElements,
-              const char* strSource, size_t count) {
-  strncpy(strDest, strSource, count);
-  return 0;
+int strncpy_s(char* dest, size_t dest_size, const char* source, size_t count) {
+  CHECK(source != NULL);
+  CHECK(dest != NULL);
+  CHECK(dest_size > 0);
+
+  if (count == _TRUNCATE) {
+    while (dest_size && *source != 0) {

[Vyacheslav Egorov (Chromium), 2011/07/06 12:10:33]

Google Style Guide disallows implicit int to boolean conversions.

+      *(dest++) = *(source++);
+      --dest_size;
+    }
+    if (dest_size == 0) {
+      *(dest - 1) = 0;
+      return STRUNCATE;
+    }
+    *dest = 0;
+    return 0;
+
+  } else {
+    while (dest_size && count && *source != 0) {

[Vyacheslav Egorov (Chromium), 2011/07/06 12:10:33]

Ditto.

+      *(dest++) = *(source++);
+      --dest_size;
+      --count;
+    }
+    CHECK(dest_size > 0);
+    *dest = 0;
+    return 0;
+  }
 }