/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1999-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* *
***********************************************************************/
#include "sftest.h"
/* errnos tested for xopen-compliance */
tmain()
{
Sfio_t* fw;
Sfio_t* fr;
int fds[2];
int lseek_errno;
int rv;
if(!(fw = sfopen(NIL(Sfio_t*), tstfile("sf", 0), "w")) )
terror("Can't create temp file %s to write", tstfile("sf", 0));
if(!(fr = sfopen(NIL(Sfio_t*), tstfile("sf", 0), "r")) )
terror("Can't open temp file %s to read", tstfile("sf", 0));
sfseek(fr, (Sfoff_t)0, SEEK_END);
if(sfgetc(fr) >= 0 || !sfeof(fr))
terror("Should have seen eof");
errno = 0;
if((rv = sfwrite(fr, "a", 1)) == 1)
terror("sfwrite returns %d, expecting 1", rv);
if(errno != EBADF)
twarn("Wrong errno %d after sfwrite(%d), expecting %d",errno,rv,EBADF);
/* on some system (eg, apple), lseek does not set errno for this case */
errno = 0;
lseek(sffileno(fw), (off_t)(-2), SEEK_SET);
lseek_errno = errno;
lseek(sffileno(fw), (off_t)0, SEEK_SET);
errno = 0;
if(sfseek(fw, (Sfoff_t)(-2), SEEK_SET) != (Sfoff_t)(-1) )
terror("sfseek should have failed");
if(errno != lseek_errno)
twarn("Wrong errno %d after sfseek, expecting %d", errno, lseek_errno);
errno = 0;
if(sfseek(fw, (Sfoff_t)0, SEEK_SET|SEEK_CUR|SEEK_END) >= 0)
terror("sfseek should not have succeeded");
if(errno != EINVAL)
twarn("Wrong errno %d after sfseek, expecting %d", errno, EINVAL);
if(pipe(fds) < 0)
terror("Can't create pipes");
if(!(fw = sfnew(fw, NIL(Void_t*), (size_t)SF_UNBOUND, fds[1], SF_WRITE)) )
terror("Can't create stream for pipe");
errno = 0;
if(sfseek(fw, (Sfoff_t)0, SEEK_SET) >= 0)
terror("sfseek should have failed on a pipe");
if(errno != ESPIPE)
twarn("Wrong errno %d after sfseek, expecting %d", ESPIPE);
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)
twarn("Wrong errno %d after sfseek, expecting %d", EBADF);
texit(0);
}