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t_ttyname.c revision 1.3 
      1 /*	$NetBSD: t_ttyname.c,v 1.3 2011/05/01 18:14:01 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_ttyname.c,v 1.3 2011/05/01 18:14:01 jruoho 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 	}
     82 }
     83 
     84 ATF_TC(ttyname_r_err);
     85 ATF_TC_HEAD(ttyname_r_err, tc)
     86 {
     87 	atf_tc_set_md_var(tc, "descr", "Test errors in ttyname_r(3)");
     88 }
     89 
     90 ATF_TC_BODY(ttyname_r_err, tc)
     91 {
     92 	char sbuf[0];
     93 	char *buf;
     94 	int fd;
     95 	int rv;
     96 
     97 	buf = malloc(ttymax + 1);
     98 
     99 	if (buf == NULL)
    100 		return;
    101 
    102 	(void)memset(buf, '\0', ttymax + 1);
    103 
    104 	if (isatty(STDIN_FILENO) != 0) {
    105 
    106 		rv = ttyname_r(STDIN_FILENO, sbuf, sizeof(sbuf));
    107 		ATF_REQUIRE(rv == ERANGE);
    108 	}
    109 
    110 	rv = ttyname_r(-1, buf, ttymax);
    111 	ATF_REQUIRE(rv == EBADF);
    112 
    113 	fd = open("/etc/passwd", O_RDONLY);
    114 
    115 	if (fd >= 0) {
    116 		rv = ttyname_r(fd, buf, ttymax);
    117 		ATF_REQUIRE(rv == ENOTTY);
    118 		ATF_REQUIRE(close(fd) == 0);
    119 	}
    120 
    121 	free(buf);
    122 }
    123 
    124 ATF_TC(ttyname_r_stdin);
    125 ATF_TC_HEAD(ttyname_r_stdin, tc)
    126 {
    127 	atf_tc_set_md_var(tc, "descr", "Test ttyname_r(3) with stdin(3)");
    128 }
    129 
    130 ATF_TC_BODY(ttyname_r_stdin, tc)
    131 {
    132 	const char *str;
    133 	char *buf;
    134 	int rv;
    135 
    136 	if (isatty(STDIN_FILENO) == 0)
    137 		return;
    138 
    139 	buf = malloc(ttymax + 1);
    140 
    141 	if (buf == NULL)
    142 		return;
    143 
    144 	(void)memset(buf, '\0', ttymax + 1);
    145 
    146 	str = ttyname(STDIN_FILENO);
    147 	rv = ttyname_r(STDIN_FILENO, buf, ttymax);
    148 
    149 	ATF_REQUIRE(rv == 0);
    150 	ATF_REQUIRE(str != NULL);
    151 
    152 	if (strcmp(str, buf) != 0)
    153 		atf_tc_fail("ttyname(3) and ttyname_r(3) conflict");
    154 
    155 	free(buf);
    156 }
    157 
    158 ATF_TC(ttyname_stdin);
    159 ATF_TC_HEAD(ttyname_stdin, tc)
    160 {
    161 	atf_tc_set_md_var(tc, "descr", "Test ttyname(3) with stdin(3)");
    162 }
    163 
    164 ATF_TC_BODY(ttyname_stdin, tc)
    165 {
    166 
    167 	if (isatty(STDIN_FILENO) != 0)
    168 		ATF_REQUIRE(ttyname(STDIN_FILENO) != NULL);
    169 
    170 	(void)close(STDIN_FILENO);
    171 
    172 	ATF_REQUIRE(isatty(STDIN_FILENO) != 1);
    173 	ATF_REQUIRE(ttyname(STDIN_FILENO) == NULL);
    174 }
    175 
    176 ATF_TP_ADD_TCS(tp)
    177 {
    178 
    179 	ttymax = sysconf(_SC_TTY_NAME_MAX);
    180 	ATF_REQUIRE(ttymax >= 0);
    181 
    182 	ATF_TP_ADD_TC(tp, ttyname_err);
    183 	ATF_TP_ADD_TC(tp, ttyname_r_err);
    184 	ATF_TP_ADD_TC(tp, ttyname_r_stdin);
    185 	ATF_TP_ADD_TC(tp, ttyname_stdin);
    186 
    187 	return atf_no_error();
    188 }
    189