file_reader.c


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#include "file_reader.h"

#define BUFFER_SIZE 16384

File* file_open(const char* filename)
{
  File* retval = malloc(sizeof(File));
  retval->name = filename;
  retval->data = malloc(0);
  retval->size = 0;
  FILE* file = fopen(filename, "rb");
  if(file)
  {
    do
    {
      retval->data = realloc(retval->data, retval->size + BUFFER_SIZE);
      retval->size += fread(&retval->data[retval->size], 1, BUFFER_SIZE, file);
    } while(!feof(file));
    retval->data = realloc(retval->data, retval->size);
    fclose(file);
    return retval;
  }
  else
  {
    perror(filename);
    return NULL;
  }
}

void file_close(File* file)
{
  free(file->data);
  free(file);
}

int main()
{
  File* file = file_open("strict.dtd");
  puts(file->data);
  file_close(file);
  return 0;
}