tests/lib/libc/gen/t_ttyname.c

   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 }