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      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 }
    152