regress/lib/libc/sys/cerror/cerror.c

   1 /* $NetBSD: cerror.c,v 1.2 2003/07/26 19:38:47 salo Exp $ */
   2
   3 /*
   4  * Copyright (c) 2003 Christopher G. Demetriou
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *          This product includes software developed for the
  18  *          NetBSD Project.  See http://www.NetBSD.org/ for
  19  *          information about NetBSD.
  20  * 4. The name of the author may not be used to endorse or promote products
  21  *    derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
  35  */
  36
  37 /*
  38  * Test program to make sure that libc's cerror (error handler) is doing
  39  * approximately the right thing for both 32-bit and 64-bit error returns.
  40  */
  41
  42 #include <sys/cdefs.h>
  43 #if !defined(lint)
  44 __RCSID("$NetBSD: cerror.c,v 1.2 2003/07/26 19:38:47 salo Exp $");
  45 __COPYRIGHT("@(#) Copyright (c) 2003\
  46  Christopher G. Demetriou.  All rights reserved.");
  47 #endif /* not lint */
  48
  49 #include <errno.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <unistd.h>
  53
  54 #define ERROR(x)        do { fprintf(stderr, "%s\n", x); errs++; } while (0)
  55
  56 int
  57 main(int argc, char *argv[])
  58 {
  59         int rv_int;
  60         off_t rv_off;
  61         int errs = 0;
  62
  63         /* Make sure file desc 4 is closed.  */
  64         (void)close(4);
  65
  66         /* Check error and 32-bit return code.  */
  67         errno = 0;
  68         rv_int = close(4);
  69         if (errno != EBADF)
  70                 ERROR("close() on closed FD didn't set errno to EBADF");
  71         if (rv_int != -1)
  72                 ERROR("close() on closed FD didn't return -1");
  73
  74
  75         /* Check error and 64-bit return code.  */
  76         errno = 0;
  77         rv_off = lseek(4, (off_t)0, SEEK_SET);
  78         if (errno != EBADF)
  79                 ERROR("lseek() on closed FD didn't set errno to EBADF");
  80         if (rv_off != (off_t)-1)
  81                 ERROR("lseek() on closed FD didn't return -1");
  82
  83         exit(errs == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
  84 }