1 files changed, 82 insertions, 0 deletions
diff --git a/heimdall/source/Utility.cpp b/heimdall/source/Utility.cpp
new file mode 100644
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+++ b/heimdall/source/Utility.cpp
@@ -0,0 +1,82 @@
+/* Copyright (c) 2010-2012 Benjamin Dobell, Glass Echidna
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.*/
+
+// C/C++ Standard Library
+#include <cerrno>
+#include <limits.h>
+#include <stdlib.h>
+
+// Heimdall
+#include "Heimdall.h"
+#include "Utility.h"
+
+using namespace Heimdall;
+
+NumberParsingStatus Utility::ParseInt(int &intValue, const char *string, int base)
+{
+    errno = 0;
+
+    char *end;
+    long longValue = strtol(string, &end, base);
+
+	if (*string == '\0' || *end != '\0')
+	{
+		return (kNumberParsingStatusInconvertible);
+	}
+	else if (errno == ERANGE)
+	{
+		intValue = (longValue == LONG_MAX) ? INT_MAX : INT_MIN;
+		return (kNumberParsingStatusRangeError);
+	}
+	else if (longValue > INT_MAX)
+	{
+		intValue = INT_MAX;
+		return (kNumberParsingStatusRangeError);
+	}
+	else if (longValue < INT_MIN)
+	{
+		intValue = INT_MIN;
+		return (kNumberParsingStatusRangeError);
+	}
+
+	intValue = longValue;
+	return (kNumberParsingStatusSuccess);
+}
+
+NumberParsingStatus Utility::ParseUnsignedInt(unsigned int &uintValue, const char *string, int base)
+{
+    errno = 0;
+
+    char *end;
+    unsigned long ulongValue = strtoul(string, &end, base);
+
+	if (*string == '\0' || *end != '\0')
+	{
+		return kNumberParsingStatusInconvertible;
+	}
+	else if (errno == ERANGE || ulongValue > INT_MAX)
+	{
+		uintValue = UINT_MAX;
+		return (kNumberParsingStatusRangeError);
+	}
+
+	uintValue = ulongValue;
+	return (kNumberParsingStatusSuccess);
+}