[General] Add Utils methods for checksums

components/openmw-mp/Utils.cpp

@@ -1,7 +1,3 @@
-//
-// Created by koncord on 24.01.16.
-//
-
 #include "Utils.hpp"
 
 #include <cstdio>
@@ -42,6 +38,16 @@ std::string Utils::convertPath(std::string str)
 #undef _SEP_
 }
 
+bool Utils::doesFileHaveChecksum(std::string filePath, unsigned int requiredChecksum)
+{
+    unsigned int fileChecksum = crc32Checksum(filePath);
+
+    if (fileChecksum == requiredChecksum)
+        return true;
+
+    return false;
+}
+
 void Utils::timestamp()
 {
     time_t ltime;
@@ -97,6 +103,8 @@ unsigned int Utils::getNumberOfDigits(int integer)
     return digits;
 }
 
+
+
 std::string Utils::toString(int num)
 {
     std::ostringstream stream;
@@ -208,3 +216,10 @@ string Utils::intToHexStr(unsigned val)
     sstr << "0x" << setfill('0') << setw(8) << uppercase << hex << val;
     return sstr.str();
 }
+
+unsigned int Utils::hexStrToInt(std::string hexString)
+{
+    unsigned int intValue;
+    sscanf(hexString.c_str(), "%x", &intValue);
+    return intValue;
+}

components/openmw-mp/Utils.hpp

@@ -21,6 +21,7 @@ int setenv(const char *name, const char *value, int overwrite);
 namespace Utils
 {
     std::string convertPath(std::string str);
+    bool doesFileHaveChecksum(std::string filePath, unsigned int requiredChecksum);
 
     void timestamp();
 
@@ -48,6 +49,8 @@ namespace Utils
     void printVersion(std::string appName, std::string version, std::string commitHash, int protocol);
 
     void printWithWidth(std::ostringstream &sstr, std::string str, size_t width);
+
     std::string intToHexStr(unsigned val);
+    unsigned int hexStrToInt(std::string hexString);
 }
 #endif //UTILS_HPP