diff --git a/bin/main b/bin/main
index 8260bbb..ab6b9eb 100755
Binary files a/bin/main and b/bin/main differ
diff --git a/src/main.c b/src/main.c
index 9205ede..a2bb391 100644
--- a/src/main.c
+++ b/src/main.c
@@ -19,6 +19,7 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 
 #define BUF 1024
 #define DEBUG true
+#define EXPECTED_PARAMS 2
 
 
 struct datetime_t {
@@ -45,7 +46,7 @@ void debugmsg(char *msg) {
 }
 
 int checkparams(int *argc, char *argv[]) {
-    if(*argc <= 1) {
+    if(*argc != EXPECTED_PARAMS) {
         printf("Dateipfad anageben! Syntax: ./main <absoluter Dateipfad>\n");
         exit(-1);
     };
@@ -62,12 +63,23 @@ int main(int argc, char *argv[]) {
     int i = 0;
     while(i<argc){
         char msg[BUF];
-        sprintf(msg,"Argument %d: %s", i, argv[i]);
+        sprintf(msg,"Argument %d: %s, Speicheradresse: %p\n", i, argv[i], &argv[i]);
         debugmsg(msg);
         i++;
     };
     checkparams(&argc,  argv);
-    char *filepath;
+    char *filepath = argv[1];
+    FILE *fp = fopen(filepath, "r");
+    if(fp == NULL) {
+        printf("Scheisse gelaufen mit der Datei...\n");
+        return -1;
+    }else{
+        char msg[BUF];
+        fseek(fp, 0L, SEEK_END);
+        long filesize = ftell(fp);
+        sprintf(msg, "Datei %s geöffnet. Speicheradresse %p, Speichergröße %ld\n", filepath, &fp, filesize);
+        debugmsg(msg);
+    }
     debugmsg("END OF PROGRAM");
     return 0;
 }
\ No newline at end of file