Write File to struct

Code:

---

void printtable(struct country *array)
{
  for (int i = 0; array.name != NULL; i++) {  //Moving through the array of structs until NULL character.
    printf("%s %d %d %d\n", array.name, array.medals.gold, array.medals.silver,
          array.medals.bronze);
  }
}

void save_table(struct country *p, char *name)
{

  char *filename = malloc(sizeof(name));
  strcpy(filename, name);

  FILE *file;
  file = fopen(filename, "w");

  fwrite(&p, sizeof(struct country), 1, file);
  fclose(file);

}

void load_table(struct country *p, char *name)
{

  char *filename = malloc(sizeof(name));
  strcpy(filename, name);

  FILE *file;
  file = fopen(filename, "r");

  if (file != NULL) {
    while (1) {
      if (feof(file)) {
        printf("File Loaded Successfully!\n");
        break;
      } else {
        fscanf(file, "%s %d %d %d", p->name, &(p->medals.gold),
              &(p->medals.silver), &(p->medals.bronze));
      }
    }

  } else {
    printf
        ("File failed to open due to either wrong name input, or nonexisting file.\n");
    return;
  }

  fclose(file);
}

int main()
{

  struct country *array = malloc(sizeof(struct country));
  array[0].name = NULL;        //Initialize array

  char input[80];              //User input line
  char name[20];                //String for handling the name input
  int number = 0;              //Keeping track of the number of countries

  printf("Enter country and medals\n");
  printf("\n");

  while (1) {                  //Loops forever until "break" command

    fgets(input, sizeof(input), stdin); //Gets input from user

    if (input[0] == 'A') {
      sscanf(input, "%*c %s", name);  //Reads input, ignoring the first "command" character
      array = add_country(array, name);
      if (array == NULL) {
        printf("\nCreating country failed");
      } else {
        number++;              //Increases the number of countries
      }

    } else if (input[0] == 'M') {
      int g, s, b;              // Gold, Silver and Bronze medal count;
      sscanf(input, "%*c %s %d %d %d", name, &g, &s, &b); //Reads input, ignoring the first "command" character
      update_medals(array, name, number, g, s, b);

    } else if (input[0] == 'L') {
      printtable(array);

    } else if (input[0] == 'W') {
      sscanf(input, "%*c %s", name);  //Reads input, ignoring the first "command" character
      save_table(array, name);

    } else if (input[0] == 'O') {
      sscanf(input, "%*c %s", name);  //Reads input, ignoring the first "command" character
      load_table(array, name);

    } else if (input[0] == 'Q') {
      free(array);
      printf("Exiting program.\n");
      break;
    }
  }
  return 0;
}

---

I'm trying to read my array structs to a file with the command "W filename" and then load the file (write the file to a struct) with the command "O filename". A problem occurs when I try to print the table after I've loaded the file. The first character prints something entirely random, however the rest of the content are right.
For example, if my input is like this:

A USA
A CANADA
W FILE
O FILE
L

It's supposed to print out:

USA 0 0 0
CANADA 0 0 0

However, it prints:

(random character) 0 0 0
CANADA 0 0 0

Code:

---

  char *filename = malloc(sizeof(name));
  strcpy(filename, name);
 
  FILE *file;
  file = fopen(filename, "r");

---

Just fopen(name,"r") and save yourself the bother of making a mess of allocating the space for a string you never release.

Code:

---

  char *filename = malloc(sizeof(name));

---

How big do you thing sizeof(name) is going to be? Remember that "name" is not an array in that function, it is a pointer to a char.

Try running this small program..

Code:

---

#include <stdio.h>
#include <stdlib.h>

void anotherFunction(char *banana)
{
    printf("In another function: %d\n", sizeof(banana));
}

int main(void)
{
    char apple[] = "1234567890";

    printf("In main: %d\n", sizeof(apple));

    anotherFunction(apple);


    return EXIT_SUCCESS;
}

---

Thank you guys, it helped with my other memory issue, but not with the problem I initially had, however I managed to figure it out by looking upat how writing file with structs actually works!