#include	"sftest.h"

/* errnos tested for xopen-compliance */

MAIN()
{
	Sfio_t*	fw;
	Sfio_t*	fr;
	int	fds[2];

	if(!(fw = sfopen(NIL(Sfio_t*), tstfile(0), "w")) )
		terror("Can't create temp file %s to write", tstfile(0));
	if(!(fr = sfopen(NIL(Sfio_t*), tstfile(0), "r")) )
		terror("Can't open temp file %s to read", tstfile(0));

	sfseek(fr, (Sfoff_t)0, SEEK_END);
	if(sfgetc(fr) >= 0 || !sfeof(fr))
		terror("Should have seen eof");

	if(sfwrite(fr, "a", 1) == 1)
		terror("sfwrite should have failed on a read stream");
	if(errno != EBADF)
		terror("Wrong errno after sfwrite failed");

	sfseek(fw, (Sfoff_t)(-1), SEEK_SET);
	if(errno != EINVAL)
		terror("Wrong errno after sfseek to -1");

	errno = 0;
	if(sfseek(fw, (Sfoff_t)0, SEEK_SET|SEEK_CUR|SEEK_END) >= 0)
		terror("sfseek should not have succeeded");
	if(errno != EINVAL)
		terror("Wrong errno after bad sfseek call");

	if(pipe(fds) < 0)
		terror("Can't create pipes");

	if(!(fw = sfnew(fw, NIL(Void_t*), -1, fds[1], SF_WRITE)) )
		terror("Can't create stream for pipe");

	if(sfseek(fw, (Sfoff_t)0, SEEK_SET) >= 0)
		terror("sfseek should have failed on a pipe");
	if(errno != ESPIPE)
		terror("Wrong errno after sfseek failed");

	close(sffileno(fw));
	errno = 0;
	if(sfseek(fw, (Sfoff_t)0, SEEK_END) >= 0)
		terror("sfseek should have failed on a closed file descriptor");
	if(errno != EBADF)
		terror("Wrong errno after sfseek failed");

	TSTRETURN(0);
}