#include <stdio.h>

int
main(int argc, char* argv[])
{
	const char* filename = argv[1];
	FILE* file = fopen(filename, "r");
	if (!file)
	{
		printf("fopen(%s) failed\n", filename);
		return 1;
	}

	if (argc == 3)
		setvbuf(file, 0, _IONBF, 0);

	char buffer[1024];
	size_t count = fread(buffer, 1, sizeof(buffer) - 1, file);
	if (count == 0)
	{
		printf("fread failed\n");
		return 1;
	}
	buffer[count] = '\0';

	printf("count = %d\n", count);
	printf("buffer = (%s)\n", buffer);

	return 0;
}