Saving a character to a file

#include<stdio.h>


void read()

{

int i=0 , j=0;
char s[10];

    FILE *fp ;

fp = fopen ( "sig.c" , "w+" );

    if (fp==NULL)
    {fputs("File error",stderr); exit (1);}


  fgets (s , 10 , fp) ;

 printf("%s \n",s);


fclose(fp);


}




void write()

{
char x1[10] ;

int i =0 ;
char c = "";

FILE *fp;
fp=fopen("sig.c", "wb");

for (i=0 ; i< 10 ;i++)

{

x1[i] = scanf("%c" , &c);
}

char x="f" ,
x2 = "";

for (i=0 ; i< 10 ;i++)

{

x2 = x1[i];

fwrite(&x2, sizeof(x2) , x ,fp);
}


fclose(fp);

}


void  main()

{
    write();

    read();


}