parse percentage from shred cmd

src/shred.cpp

@@ -0,0 +1,57 @@
+/**
+ * @file    shred.cpp
+ * @brief   shred drive
+ * @author  hendrik schutter
+ * @date    03.05.2020
+ */
+
+#include "../include/reHDD.h"
+
+/**
+ * \brief   shred drive with shred
+ * \param	pointer of Drive instance
+ * \return  void
+ */
+void Shred::shredDrive(Drive* drive)
+
+{
+    size_t len = 0; //lenght of found line
+    char* cLine = NULL; //found line
+
+#ifndef DRYRUN
+    string sCMD = ("shred -v ");
+    sCMD.append(drive->getPath());
+#endif
+
+#ifdef DRYRUN
+    cout << "dryrun for " << drive->getPath() << endl;
+   // string sCMD = ("ping ::1 -c 5");
+    string sCMD = ("bash shred_dummy.sh");
+#endif
+
+    const char* cpComand = sCMD.c_str();
+    cout << "shred: " << cpComand << endl;
+
+    FILE* shredCmdOutput = popen(cpComand, "r");
+
+    while ((getline(&cLine, &len, shredCmdOutput)) != -1)
+        {
+            string sLine = string(cLine);
+            
+
+            // TODO parse percentage
+
+    string search("%");
+    size_t found = sLine.find(search);
+    if (found!=string::npos){
+            uint8_t percent = 0U;
+            sLine.erase(0, sLine.find("%")-2);
+            sLine.erase(std::remove(sLine.begin(), sLine.end(), '\n'), sLine.end());
+		    int i = std::stoi(sLine);
+		    cout << i << " percent" << endl;
+    }
+
+           
+        }
+    fclose(shredCmdOutput);
+}