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      1 /*	$NetBSD: t_ttyname.c,v 1.4 2017/01/10 15:33:40 christos 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_ttyname.c,v 1.4 2017/01/10 15:33:40 christos Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <errno.h>
     36 #include <fcntl.h>
     37 #include <stdlib.h>
     38 #include <string.h>
     39 #include <unistd.h>
     40 
     41 static long ttymax = 0;
     42 
     43 ATF_TC(ttyname_err);
     44 ATF_TC_HEAD(ttyname_err, tc)
     45 {
     46 	atf_tc_set_md_var(tc, "descr", "Test errors in ttyname(3)");
     47 }
     48 
     49 ATF_TC_BODY(ttyname_err, tc)
     50 {
     51 	int fd;
     52 
     53 	fd = open("XXX", O_RDONLY);
     54 
     55 	if (fd < 0) {
     56 
     57 		errno = 0;
     58 
     59 		ATF_REQUIRE(isatty(fd) != -1);
     60 		ATF_REQUIRE(errno == EBADF);
     61 
     62 		errno = 0;
     63 
     64 		ATF_REQUIRE(ttyname(fd) == NULL);
     65 		ATF_REQUIRE(errno == EBADF);
     66 	}
     67 
     68 	fd = open("/etc/passwd", O_RDONLY);
     69 
     70 	if (fd >= 0) {
     71 
     72 		errno = 0;
     73 
     74 		ATF_REQUIRE(isatty(fd) != -1);
     75 		ATF_REQUIRE(errno == ENOTTY);
     76 
     77 		errno = 0;
     78 
     79 		ATF_REQUIRE(ttyname(fd) == NULL);
     80 		ATF_REQUIRE(errno == ENOTTY);
     81 		(void)close(fd);
     82 	}
     83 }
     84 
     85 ATF_TC(ttyname_r_err);
     86 ATF_TC_HEAD(ttyname_r_err, tc)
     87 {
     88 	atf_tc_set_md_var(tc, "descr", "Test errors in ttyname_r(3)");
     89 }
     90 
     91 ATF_TC_BODY(ttyname_r_err, tc)
     92 {
     93 	char sbuf[0];
     94 	char *buf;
     95 	int fd;
     96 	int rv;
     97 
     98 	buf = malloc(ttymax + 1);
     99 
    100 	if (buf == NULL)
    101 		return;
    102 
    103 	(void)memset(buf, '\0', ttymax + 1);
    104 
    105 	if (isatty(STDIN_FILENO) != 0) {
    106 
    107 		rv = ttyname_r(STDIN_FILENO, sbuf, sizeof(sbuf));
    108 		ATF_REQUIRE(rv == ERANGE);
    109 	}
    110 
    111 	rv = ttyname_r(-1, buf, ttymax);
    112 	ATF_REQUIRE(rv == EBADF);
    113 
    114 	fd = open("/etc/passwd", O_RDONLY);
    115 
    116 	if (fd >= 0) {
    117 		rv = ttyname_r(fd, buf, ttymax);
    118 		ATF_REQUIRE(rv == ENOTTY);
    119 		ATF_REQUIRE(close(fd) == 0);
    120 	}
    121 
    122 	free(buf);
    123 }
    124 
    125 ATF_TC(ttyname_r_stdin);
    126 ATF_TC_HEAD(ttyname_r_stdin, tc)
    127 {
    128 	atf_tc_set_md_var(tc, "descr", "Test ttyname_r(3) with stdin(3)");
    129 }
    130 
    131 ATF_TC_BODY(ttyname_r_stdin, tc)
    132 {
    133 	const char *str;
    134 	char *buf;
    135 	int rv;
    136 
    137 	if (isatty(STDIN_FILENO) == 0)
    138 		return;
    139 
    140 	buf = malloc(ttymax + 1);
    141 
    142 	if (buf == NULL)
    143 		return;
    144 
    145 	(void)memset(buf, '\0', ttymax + 1);
    146 
    147 	str = ttyname(STDIN_FILENO);
    148 	rv = ttyname_r(STDIN_FILENO, buf, ttymax);
    149 
    150 	ATF_REQUIRE(rv == 0);
    151 	ATF_REQUIRE(str != NULL);
    152 
    153 	if (strcmp(str, buf) != 0)
    154 		atf_tc_fail("ttyname(3) and ttyname_r(3) conflict");
    155 
    156 	free(buf);
    157 }
    158 
    159 ATF_TC(ttyname_stdin);
    160 ATF_TC_HEAD(ttyname_stdin, tc)
    161 {
    162 	atf_tc_set_md_var(tc, "descr", "Test ttyname(3) with stdin(3)");
    163 }
    164 
    165 ATF_TC_BODY(ttyname_stdin, tc)
    166 {
    167 
    168 	if (isatty(STDIN_FILENO) != 0)
    169 		ATF_REQUIRE(ttyname(STDIN_FILENO) != NULL);
    170 
    171 	(void)close(STDIN_FILENO);
    172 
    173 	ATF_REQUIRE(isatty(STDIN_FILENO) != 1);
    174 	ATF_REQUIRE(ttyname(STDIN_FILENO) == NULL);
    175 }
    176 
    177 ATF_TP_ADD_TCS(tp)
    178 {
    179 
    180 	ttymax = sysconf(_SC_TTY_NAME_MAX);
    181 	ATF_REQUIRE(ttymax >= 0);
    182 
    183 	ATF_TP_ADD_TC(tp, ttyname_err);
    184 	ATF_TP_ADD_TC(tp, ttyname_r_err);
    185 	ATF_TP_ADD_TC(tp, ttyname_r_stdin);
    186 	ATF_TP_ADD_TC(tp, ttyname_stdin);
    187 
    188 	return atf_no_error();
    189 }
    190