Differential D25502 Diff 73882 tests/sys/kern/memfd_test.c

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tests/sys/kern/memfd_test.c

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	* SUCH DAMAGE.			* SUCH DAMAGE.
	*/			*/

	#include <sys/cdefs.h>			#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

	#include <sys/fcntl.h>			#include <sys/fcntl.h>
	#include <sys/mman.h>			#include <sys/mman.h>
				#include <sys/stat.h>

	#include <atf-c.h>			#include <atf-c.h>
	#include <errno.h>			#include <errno.h>
	#include <unistd.h>			#include <unistd.h>

	ATF_TC_WITHOUT_HEAD(basic);			ATF_TC_WITHOUT_HEAD(basic);
	ATF_TC_BODY(basic, tc)			ATF_TC_BODY(basic, tc)
	{			{
				struct stat sb;
	int fd;			int fd;
	char buf[8];			char buf[8];

	ATF_REQUIRE((fd = memfd_create("...", 0)) != -1);			ATF_REQUIRE((fd = memfd_create("...", 0)) != -1);

	/* File size should be initially 0 */			/* write(2) should grow us out automatically. */
	ATF_REQUIRE(write(fd, buf, sizeof(buf)) == 0);			ATF_REQUIRE(write(fd, buf, sizeof(buf)) == sizeof(buf));
				ATF_REQUIRE(fstat(fd, &sb) == 0);
				ATF_REQUIRE(sb.st_size == sizeof(buf));

	/* ftruncate(2) must succeed without seals */			/* ftruncate(2) must succeed without seals */
	ATF_REQUIRE(ftruncate(fd, sizeof(buf) - 1) == 0);			ATF_REQUIRE(ftruncate(fd, 2 * (sizeof(buf) - 1)) == 0);

	ATF_REQUIRE(write(fd, buf, sizeof(buf)) == sizeof(buf) - 1);			/* write(2) again must not be limited by ftruncate(2) size. */
				ATF_REQUIRE(write(fd, buf, sizeof(buf)) == sizeof(buf));

				/* Sanity check. */
				ATF_REQUIRE(fstat(fd, &sb) == 0);
				ATF_REQUIRE(sb.st_size == 2 * sizeof(buf));

	close(fd);			close(fd);
	}			}

	ATF_TC_WITHOUT_HEAD(cloexec);			ATF_TC_WITHOUT_HEAD(cloexec);
	ATF_TC_BODY(cloexec, tc)			ATF_TC_BODY(cloexec, tc)
	{			{
	int fd_nocl, fd_cl;			int fd_nocl, fd_cl;
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