#include <stdio.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <errno.h>
#include <string.h>

int main(void)
{
	void *p;
	const struct rlimit rlim_data = {
		.rlim_cur = 10 << 20,
		.rlim_max = RLIM_INFINITY
	};
	int saved_errno;

	p = sbrk(0);
	fprintf(stderr, "sbrk=%p main=%p\n", p, &main);
	if (setrlimit(RLIMIT_DATA, &rlim_data) == -1) {
		fprintf(stderr, "setrlimit failed: %s\n", strerror(errno));
		return 1;
	}
	if (sbrk(1 << 20) == (void*)-1) {
		saved_errno = errno;
		fprintf(stderr, "sbrk failed: %s (brk=%p)\n",
			strerror(saved_errno), sbrk(0));
		return 1;
	} else {
		fprintf(stderr, "sbrk succeeded (brk=%p)\n", sbrk(0));
		return 0;
	}
}