fix(remove volume improved, we can now delete a specific volume)

tpfs/rmvol.c

@@ -28,8 +28,14 @@ int main(int argc, char const *argv[])
     /* Allows all IT */
     _mask(1);
 
+    if (argc != 2)
+    {
+        fprintf(stderr, "Usage: %s <volume> \n", argv[0]);
+        exit(EXIT_FAILURE);
+    }
+
     load_mbr();
-    remove_vol();
+    remove_vol(atoi(argv[1]));
     save_mbr();
 
     /* and exit! */

tpfs/vol.c

@@ -146,12 +146,16 @@ void display_vols()
     }
 }
 
-void remove_vol()
+void remove_vol(int vol)
 {
-    if (mbr.nb_vols == 0)
+    int i;
+    if (vol >= mbr.nb_vols)
     {
-        fprintf(stderr, "Vous ne disposez d'aucun volume \n");
+        fprintf(stderr, "Ce volume n'existe pas. \n");
         return;
     }
+
+    for (i = vol; i < mbr.nb_vols - 1; i++)
+        mbr.vols[i] = mbr.vols[i + 1];
     mbr.nb_vols--;
 }
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