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      1 /*	$NetBSD: t_paths.c,v 1.19 2023/08/05 12:11:05 riastradh 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_paths.c,v 1.19 2023/08/05 12:11:05 riastradh Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/stat.h>
     36 
     37 #include <errno.h>
     38 #include <fcntl.h>
     39 #include <paths.h>
     40 #include <stdio.h>
     41 #include <string.h>
     42 #include <unistd.h>
     43 
     44 #include <atf-c.h>
     45 
     46 #define PATH_DEV	__BIT(0)	/* A device node	*/
     47 #define PATH_DIR	__BIT(1)	/* A directory		*/
     48 #define PATH_FILE	__BIT(2)	/* A file		*/
     49 #define PATH_ROOT	__BIT(3)	/* Access for root only */
     50 #define PATH_OPT	__BIT(3)	/* Optional, ENODEV if not supported */
     51 
     52 static const struct {
     53 	const char	*path;
     54 	int		 flags;
     55 } paths[] = {
     56 	{ _PATH_AUDIO,		PATH_DEV		},
     57 	{ _PATH_AUDIO0,		PATH_DEV		},
     58 	{ _PATH_AUDIOCTL,	PATH_DEV		},
     59 	{ _PATH_AUDIOCTL0,	PATH_DEV		},
     60 	{ _PATH_BPF,		PATH_DEV | PATH_ROOT	},
     61 	{ _PATH_CLOCKCTL,	PATH_DEV | PATH_ROOT	},
     62 	{ _PATH_CONSOLE,	PATH_DEV | PATH_ROOT	},
     63 	{ _PATH_CONSTTY,	PATH_DEV | PATH_ROOT	},
     64 	{ _PATH_CPUCTL,		PATH_DEV		},
     65 	{ _PATH_CSMAPPER,	PATH_DIR		},
     66 	{ _PATH_DEFTAPE,	PATH_DEV | PATH_ROOT	},
     67 	{ _PATH_DEVCDB,		PATH_FILE		},
     68 	{ _PATH_DEVDB,		PATH_FILE		},
     69 	{ _PATH_DEVNULL,	PATH_DEV		},
     70 	{ _PATH_DRUM,		PATH_DEV | PATH_ROOT	},
     71 	{ _PATH_ESDB,		PATH_DIR		},
     72 	{ _PATH_FTPUSERS,	PATH_FILE		},
     73 	{ _PATH_GETTYTAB,	PATH_FILE		},
     74 	{ _PATH_I18NMODULE,	PATH_DIR		},
     75 	{ _PATH_ICONV,		PATH_DIR		},
     76 	{ _PATH_KMEM,		PATH_DEV | PATH_ROOT	},
     77 	{ _PATH_KSYMS,		PATH_DEV | PATH_ROOT	},
     78 	{ _PATH_KVMDB,		PATH_FILE		},
     79 	{ _PATH_LOCALE,		PATH_DIR		},
     80 	{ _PATH_MAILDIR,	PATH_DIR		},
     81 	{ _PATH_MAN,		PATH_DIR		},
     82 	{ _PATH_MEM,		PATH_DEV | PATH_ROOT	},
     83 	{ _PATH_MIXER,		PATH_DEV		},
     84 	{ _PATH_MIXER0,		PATH_DEV		},
     85 	{ _PATH_NOLOGIN,	PATH_FILE		},
     86 	{ _PATH_POWER,		PATH_DEV | PATH_ROOT | PATH_OPT	},
     87 	{ _PATH_PRINTCAP,	PATH_FILE		},
     88 	{ _PATH_PUD,		PATH_DEV | PATH_ROOT	},
     89 	{ _PATH_PUFFS,		PATH_DEV | PATH_ROOT	},
     90 	{ _PATH_RANDOM,		PATH_DEV		},
     91 	{ _PATH_SENDMAIL,	PATH_FILE		},
     92 	{ _PATH_SHELLS,		PATH_FILE		},
     93 	{ _PATH_SKEYKEYS,	PATH_FILE | PATH_ROOT	},
     94 	{ _PATH_SOUND,		PATH_DEV		},
     95 	{ _PATH_SOUND0,		PATH_DEV		},
     96 	{ _PATH_SYSMON,		PATH_DEV | PATH_OPT	},
     97 	{ _PATH_TTY,		PATH_DEV		},
     98 	{ _PATH_UNIX,		PATH_FILE | PATH_ROOT	},
     99 	{ _PATH_URANDOM,	PATH_DEV		},
    100 	{ _PATH_VIDEO,		PATH_DEV		},
    101 	{ _PATH_VIDEO0,		PATH_DEV		},
    102 	{ _PATH_WATCHDOG,	PATH_DEV | PATH_OPT	},
    103 
    104 	{ _PATH_DEV,		PATH_DIR		},
    105 	{ _PATH_DEV_PTS,	PATH_DIR		},
    106 	{ _PATH_EMUL_AOUT,	PATH_DIR		},
    107 	{ _PATH_TMP,		PATH_DIR		},
    108 	{ _PATH_VARDB,		PATH_DIR		},
    109 	{ _PATH_VARRUN,		PATH_DIR		},
    110 	{ _PATH_VARTMP,		PATH_DIR		},
    111 
    112 	{ _PATH_BSHELL,		PATH_FILE		},
    113 	{ _PATH_CSHELL,		PATH_FILE		},
    114 	{ _PATH_VI,		PATH_FILE		},
    115 };
    116 
    117 ATF_TC(paths);
    118 ATF_TC_HEAD(paths, tc)
    119 {
    120 	atf_tc_set_md_var(tc, "descr", "A basic test for <paths.h>");
    121 }
    122 
    123 ATF_TC_BODY(paths, tc)
    124 {
    125 	struct stat st;
    126 	uid_t uid;
    127 	mode_t m;
    128 	size_t i;
    129 	int fd;
    130 
    131 #if defined(__sparc__)
    132 	atf_tc_skip("PR port-sparc/45580");
    133 #endif
    134 
    135 	uid = getuid();
    136 
    137 	for (i = 0; i < __arraycount(paths); i++) {
    138 		(void)fprintf(stderr, "testing '%s'\n", paths[i].path);
    139 
    140 		errno = 0;
    141 		fd = open(paths[i].path, O_RDONLY);
    142 		if (fd < 0) {
    143 			switch (errno) {
    144 			case ENODEV:
    145 				if ((paths[i].flags & PATH_OPT) == 0) {
    146 					atf_tc_fail_nonfatal("Required path %s"
    147 					    " does not exist", paths[i].path);
    148 					continue;
    149 				}
    150 				break;
    151 			case EPERM:	/* FALLTHROUGH */
    152 			case EACCES:	/* FALLTHROUGH */
    153 				if ((paths[i].flags & PATH_ROOT) == 0) {
    154 					atf_tc_fail_nonfatal("UID %u"
    155 					    " failed to open %s,"
    156 					    " error %d (%s)",
    157 					    (uint32_t)uid,
    158 					    paths[i].path,
    159 					    errno, strerror(errno));
    160 					continue;
    161 				}
    162 				/* FALLTHROUGH */
    163 			case EBUSY:	/* FALLTHROUGH */
    164 			case ENXIO:	/* FALLTHROUGH */
    165 			case ENOENT:	/* FALLTHROUGH */
    166 			default:
    167 				continue;
    168 			}
    169 		}
    170 
    171 		(void)memset(&st, 0, sizeof(struct stat));
    172 
    173 		if (fstat(fd, &st) == -1) {
    174 			atf_tc_fail_nonfatal("fstat %s failed, error %d (%s)",
    175 			    paths[i].path, errno, strerror(errno));
    176 			ATF_CHECK(close(fd) == 0);
    177 			continue;
    178 		}
    179 
    180 		m = st.st_mode;
    181 
    182 		if ((paths[i].flags & PATH_DEV) != 0) {
    183 			ATF_CHECK(S_ISBLK(m) != 0 || S_ISCHR(m) != 0);
    184 			ATF_CHECK((paths[i].flags & PATH_DIR) == 0);
    185 			ATF_CHECK((paths[i].flags & PATH_FILE) == 0);
    186 		}
    187 
    188 		if ((paths[i].flags & PATH_DIR) != 0) {
    189 			ATF_CHECK(S_ISDIR(m) != 0);
    190 			ATF_CHECK((paths[i].flags & PATH_DEV) == 0);
    191 			ATF_CHECK((paths[i].flags & PATH_FILE) == 0);
    192 		}
    193 
    194 		if ((paths[i].flags & PATH_FILE) != 0) {
    195 			ATF_CHECK(S_ISREG(m) != 0);
    196 			ATF_CHECK((paths[i].flags & PATH_DEV) == 0);
    197 			ATF_CHECK((paths[i].flags & PATH_DIR) == 0);
    198 		}
    199 
    200 		ATF_CHECK(close(fd) == 0);
    201 	}
    202 }
    203 
    204 ATF_TP_ADD_TCS(tp)
    205 {
    206 
    207 	ATF_TP_ADD_TC(tp, paths);
    208 
    209 	return atf_no_error();
    210 }
    211