Qfyilyi

I got this error from Valgrind. I could bot find the solution to fix this.
When I try to free my allocations I get segmentation fault and these errors.

> ==10096== ERROR SUMMARY: 3 errors from 3 contexts (suppressed: 0 from 0)

    ==10096==

    ==10096== 1 errors in context 1 of 3:

    ==10096== Invalid write of size 1

    ==10096==    at 0x40138C: readClientFile (client.c:39)

    ==10096==    by 0x400C0B: main (main.c:15)

    ==10096==  Address 0x3 is not stack'd, malloc'd or (recently) free'd

    ==10096==

    ==10096==

    ==10096== 1 errors in context 2 of 3:

    ==10096== Invalid read of size 8

    ==10096==    at 0x401389: readClientFile (client.c:39)

    ==10096==    by 0x400C0B: main (main.c:15)

    ==10096==  Address 0x5203568 is 0 bytes after a block of size 40 alloc'd

    ==10096==    at 0x4C2B9B5: calloc (vg_replace_malloc.c:711)

    ==10096==    by 0x401304: readClientFile (client.c:29)

    ==10096==    by 0x400C0B: main (main.c:15)

    ==10096==

    ==10096==

    ==10096== 1 errors in context 3 of 3:

    ==10096== Invalid read of size 8

    ==10096==    at 0x401359: readClientFile (client.c:38)

    ==10096==    by 0x400C0B: main (main.c:15)

    ==10096==  Address 0x5203568 is 0 bytes after a block of size 40 alloc'd

    ==10096==    at 0x4C2B9B5: calloc (vg_replace_malloc.c:711)

    ==10096==    by 0x401304: readClientFile (client.c:29)

    ==10096==    by 0x400C0B: main (main.c:15)

It says that problem is about my double pointer array of structures. Related lines are below.

29.    struct client** clientsArray =calloc(numberOfClients ,sizeof(struct client*));



    for(i= 0 ; i<numberOfClients; i++){

        clientsArray[i] = (struct client*)malloc(sizeof(struct client));



    }

 while(!feof(clientFP)){



38.             fscanf(clientFP, "%s", clientsArray[counter]->clientID);

39.           clientsArray[counter]->clientID[3]='';



             fscanf(clientFP, "%s", clientsArray[counter]->clientIP);

             clientsArray[counter]->clientIP[11]='';



              fscanf(clientFP, "%s", clientsArray[counter]->clientMacAddress);

             clientsArray[counter]->clientMacAddress[11]='';



            counter++;



    }

//Each line of the file is in this format: A 1.2.3.4 AAAAAAAAAA

MY CODE TO FREE CLIENTS ARRAY;

Firstly I freed the variables of each client object. And then I used this.

for(i = 0 ; i<numberOfClients ; i++){





    free(clients[i]);

}

free(clients);





Can you please help me about what to change?