Isolated httpfs test

test

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

int main (int argc, char *argv[]) {
	FILE *f;
	FILE *ret;
	int c;

	f = fopen(argv[1], "rbm");
	if (!f) {
		printf("%s\n", "fopen failed");
		exit(1);
	}
	printf("%s\n", "fopen success");

	int fd = fileno(f);

	ret = fdopen(fd, "rb");
	if (!ret) {
		printf("%s\n", "fdopen failed");
		exit(1);
	}
	printf("%s\n", "fdopen success");

	// At this point I a single U+FFFD character.
	while (!feof (ret)) {
    	int c = fgetc (ret);
    	putchar(c);
    }

	fclose(f);
	fclose(ret);
	exit(0);
}