Program to copy files in C

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

int main()
{
   char ch, source_file[20], target_file[20];
   FILE *source, *target;

   printf("Enter name of file to copyn");
   gets(source_file);

   source = fopen(source_file, "r");

   if( source == NULL )
   {
      printf("Press any key to exit...n");
      exit(EXIT_FAILURE);
   }

   printf("Enter name of target filen");
   gets(target_file);

   target = fopen(target_file, "w");

   if( target == NULL )
   {
      fclose(source);
      printf("Press any key to exit...n");
      exit(EXIT_FAILURE);
   }

   while( ( ch = fgetc(source) ) != EOF )
      fputc(ch, target);

   printf("File copied successfully.n");

   fclose(source);
   fclose(target);

   return 0;
}

Output

Enter name of file to copy
 hello.c

Enter name of target file
hello-copy.c

File copied successfully.