tests/lib/libc/gen/t_getcwd.c

   1 /*      $NetBSD: t_getcwd.c,v 1.3 2011/07/27 05:04:11 jruoho Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jukka Ruohonen.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: t_getcwd.c,v 1.3 2011/07/27 05:04:11 jruoho Exp $");
  33
  34 #include <sys/param.h>
  35 #include <sys/stat.h>
  36
  37 #include <atf-c.h>
  38 #include <errno.h>
  39 #include <fts.h>
  40 #include <limits.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43
  44 ATF_TC(getcwd_err);
  45 ATF_TC_HEAD(getcwd_err, tc)
  46 {
  47         atf_tc_set_md_var(tc, "descr", "Test error conditions in getcwd(3)");
  48 }
  49
  50 ATF_TC_BODY(getcwd_err, tc)
  51 {
  52         char buf[MAXPATHLEN];
  53
  54         errno = 0;
  55
  56         ATF_REQUIRE(getcwd(buf, 0) == NULL);
  57         ATF_REQUIRE(errno == EINVAL);
  58
  59         errno = 0;
  60
  61         ATF_REQUIRE(getcwd((void *)-1, sizeof(buf)) == NULL);
  62         ATF_REQUIRE(errno == EFAULT);
  63 }
  64
  65 ATF_TC(getcwd_fts);
  66 ATF_TC_HEAD(getcwd_fts, tc)
  67 {
  68         atf_tc_set_md_var(tc, "descr", "A basic test of getcwd(3)");
  69 }
  70
  71 ATF_TC_BODY(getcwd_fts, tc)
  72 {
  73         const char *str = NULL;
  74         char buf[MAXPATHLEN];
  75         char *argv[2];
  76         FTSENT *ftse;
  77         FTS *fts;
  78         int ops;
  79         short depth;
  80
  81         /*
  82          * Do not traverse too deep; cf. PR bin/45180.
  83          */
  84         depth = 2;
  85
  86         argv[1] = NULL;
  87         argv[0] = __UNCONST("/");
  88
  89         /*
  90          * Test that getcwd(3) works with basic
  91          * system directories. Note that having
  92          * no FTS_NOCHDIR specified should ensure
  93          * that the current directory is visited.
  94          */
  95         ops = FTS_PHYSICAL | FTS_NOSTAT;
  96         fts = fts_open(argv, ops, NULL);
  97
  98         if (fts == NULL) {
  99                 str = "failed to initialize fts(3)";
 100                 goto out;
 101         }
 102
 103         while ((ftse = fts_read(fts)) != NULL) {
 104
 105                 if (ftse->fts_level < 1)
 106                         continue;
 107
 108                 if (ftse->fts_level > depth) {
 109                         (void)fts_set(fts, ftse, FTS_SKIP);
 110                         continue;
 111                 }
 112
 113                 switch(ftse->fts_info) {
 114
 115                 case FTS_DP:
 116
 117                         (void)memset(buf, 0, sizeof(buf));
 118
 119                         if (getcwd(buf, sizeof(buf)) == NULL) {
 120                                 str = "getcwd(3) failed";
 121                                 goto out;
 122                         }
 123
 124                         if (strstr(ftse->fts_path, buf) == NULL) {
 125                                 str = "getcwd(3) returned incorrect path";
 126                                 goto out;
 127                         }
 128
 129                         break;
 130
 131                 default:
 132                         break;
 133                 }
 134         }
 135
 136 out:
 137         if (fts != NULL)
 138                 (void)fts_close(fts);
 139
 140         if (str != NULL)
 141                 atf_tc_fail("%s", str);
 142 }
 143
 144 ATF_TP_ADD_TCS(tp)
 145 {
 146
 147         ATF_TP_ADD_TC(tp, getcwd_err);
 148         ATF_TP_ADD_TC(tp, getcwd_fts);
 149
 150         return atf_no_error();
 151 }