Handle strndup in freebsd in the same way it is handled on other

platforms that do not support it directly.
Review URL: http://codereview.chromium.org/18585

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/platform-freebsd.cc

@@ -195,7 +195,19 @@ char *OS::StrDup(const char* str) {
 
 
 char* OS::StrNDup(const char* str, size_t n) {
-  return strndup(str, n);
+  // Stupid implementation of strndup since freebsd isn't born with
+  // one.
+  size_t len = strlen(str);
+  if (len <= n) {
+    return StrDup(str);
+  }
+  char* result = new char[n+1];
+  size_t i;
+  for (i = 0; i <= n; i++) {
+    result[i] = str[i];
+  }
+  result[i] = '\0';
+  return result;
 }
 
 

src/platform-macos.cc

@@ -199,12 +199,14 @@ char* OS::StrNDup(const char* str, size_t n) {
   // Stupid implementation of strndup since macos isn't born with
   // one.
   size_t len = strlen(str);
-  if (len <= n)
+  if (len <= n) {
     return StrDup(str);
+  }
   char* result = new char[n+1];
   size_t i;
-  for (i = 0; i <= n; i++)
+  for (i = 0; i <= n; i++) {
     result[i] = str[i];
+  }
   result[i] = '\0';
   return result;
 }

src/platform-win32.cc

@@ -704,12 +704,14 @@ char* OS::StrNDup(const char* str, size_t n) {
   // Stupid implementation of strndup since windows isn't born with
   // one.
   size_t len = strlen(str);
-  if (len <= n)
+  if (len <= n) {
     return StrDup(str);
+  }
   char* result = new char[n+1];
   size_t i;
-  for (i = 0; i <= n; i++)
+  for (i = 0; i <= n; i++) {
     result[i] = str[i];
+  }
   result[i] = '\0';
   return result;
 }