regress/lib/libposix/prename.c

   1 /*      $NetBSD: prename.c,v 1.2 2002/02/21 07:38:18 itojun Exp $       */
   2
   3 /*-
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   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  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <errno.h>
  32 #include <unistd.h>
  33 #include <fcntl.h>
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36
  37 int main(void)
  38 {
  39         int errors = 0;
  40         struct stat sb;
  41
  42         (void)unlink("t1");
  43         (void)unlink("t2");
  44         if (creat("t1", 0600) < 0) {
  45                 perror("create t1");
  46                 exit(1);
  47         }
  48
  49         if (link("t1", "t2")) {
  50                 perror("link t1 t2");
  51                 exit(1);
  52         }
  53
  54         /* Check if rename to same name works as expected */
  55         if (rename("t1", "t1")) {
  56                 perror("rename t1 t1");
  57                 errors++;
  58         }
  59         if (stat("t1", &sb)) {
  60                 perror("rename removed file? stat t1");
  61                 exit(1);
  62         }
  63
  64         if (rename("t1", "t2")) {
  65                 perror("rename t1 t2");
  66                 errors++;
  67         }
  68 #if BSD_RENAME
  69         /* check if rename of hardlinked file works the BSD way */
  70         if (stat("t1", &sb)) {
  71                 if (errno != ENOENT) {
  72                         perror("BSD rename should remove file! stat t1");
  73                         errors++;
  74                 }
  75         } else {
  76                 fprintf(stderr, "BSD rename should remove file!");
  77                 errors++;
  78         }
  79 #else
  80         /* check if rename of hardlinked file works as the standard says */
  81         if (stat("t1", &sb)) {
  82                 perror("Posix rename should not remove file! stat t1");
  83                 errors++;
  84         }
  85 #endif
  86
  87         /* check if we get the expected error */
  88         /* this also exercises icky shared libraries goo */
  89         if (rename("no/such/file/or/dir", "no/such/file/or/dir")) {
  90                 if (errno != ENOENT) {
  91                         perror("rename no/such/file/or/dir");
  92                         errors++;
  93                 }
  94         } else {
  95                 fprintf(stderr, "No error renaming no/such/file/or/dir\n");
  96                 errors++;
  97         }
  98
  99         exit(errors ? 1 : 0);
 100 }