1 /* $NetBSD: t_closefrom.c,v 1.4 2011/05/11 08:11:36 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_closefrom.c,v 1.4 2011/05/11 08:11:36 jruoho Exp $"); 33 34 #include <sys/wait.h> 35 36 #include <atf-c.h> 37 #include <errno.h> 38 #include <fcntl.h> 39 #include <limits.h> 40 #include <unistd.h> 41 42 static const char path[] = "closefrom"; 43 44 ATF_TC_WITH_CLEANUP(closefrom_basic); 45 ATF_TC_HEAD(closefrom_basic, tc) 46 { 47 atf_tc_set_md_var(tc, "descr", "A basic test of closefrom(3), #1"); 48 } 49 50 ATF_TC_BODY(closefrom_basic, tc) 51 { 52 int fd, cur1, cur2; 53 54 (void)closefrom(STDERR_FILENO + 1); 55 56 fd = open(path, O_RDONLY | O_CREAT, 0400); 57 ATF_REQUIRE(fd >= 0); 58 59 cur1 = fcntl(0, F_MAXFD); 60 61 ATF_REQUIRE(cur1 == STDERR_FILENO + 1); 62 ATF_REQUIRE(closefrom(cur1) == 0); 63 64 cur2 = fcntl(0, F_MAXFD); 65 66 ATF_REQUIRE(cur1 - 1 == cur2); 67 ATF_REQUIRE(close(fd) == -1); 68 ATF_REQUIRE(unlink(path) == 0); 69 } 70 71 ATF_TC_CLEANUP(closefrom_basic, tc) 72 { 73 (void)unlink(path); 74 } 75 76 ATF_TC_WITH_CLEANUP(closefrom_buffer); 77 ATF_TC_HEAD(closefrom_buffer, tc) 78 { 79 atf_tc_set_md_var(tc, "descr", "A basic test of closefrom(3), #2"); 80 } 81 82 ATF_TC_BODY(closefrom_buffer, tc) 83 { 84 int buf[16], cur, half; 85 size_t i; 86 87 /* 88 * Open a buffer of descriptors, close the half of 89 * these and verify that the result is consistent. 90 */ 91 ATF_REQUIRE(closefrom(STDERR_FILENO + 1) == 0); 92 93 cur = fcntl(0, F_MAXFD); 94 ATF_REQUIRE(cur == STDERR_FILENO); 95 96 for (i = 0; i < __arraycount(buf); i++) { 97 buf[i] = open(path, O_RDWR | O_CREAT, 0600); 98 ATF_REQUIRE(buf[i] >= 0); 99 } 100 101 cur = fcntl(0, F_MAXFD); 102 ATF_REQUIRE(cur == __arraycount(buf) + STDERR_FILENO); 103 104 half = STDERR_FILENO + __arraycount(buf) / 2; 105 ATF_REQUIRE(closefrom(half) == 0); 106 107 cur = fcntl(0, F_MAXFD); 108 ATF_REQUIRE(cur == half - 1); 109 110 for (i = 0; i < __arraycount(buf); i++) 111 (void)close(buf[i]); 112 } 113 114 ATF_TC_CLEANUP(closefrom_buffer, tc) 115 { 116 (void)unlink(path); 117 } 118 119 ATF_TC(closefrom_err); 120 ATF_TC_HEAD(closefrom_err, tc) 121 { 122 atf_tc_set_md_var(tc, "descr", "Test errors from closefrom(3)"); 123 } 124 125 ATF_TC_BODY(closefrom_err, tc) 126 { 127 128 errno = 0; 129 ATF_REQUIRE_ERRNO(EBADF, closefrom(-INT_MAX) == -1); 130 } 131 132 ATF_TC(closefrom_one); 133 ATF_TC_HEAD(closefrom_one, tc) 134 { 135 atf_tc_set_md_var(tc, "descr", "Test closefrom(1)"); 136 } 137 138 ATF_TC_BODY(closefrom_one, tc) 139 { 140 pid_t pid; 141 int sta; 142 143 pid = fork(); 144 ATF_REQUIRE(pid >= 0); 145 146 if (pid == 0) { 147 148 if (closefrom(1) != 0) 149 _exit(10); 150 151 _exit(fcntl(0, F_MAXFD)); 152 } 153 154 155 (void)wait(&sta); 156 157 /* 158 * STDIN_FILENO sould still be open; WEXITSTATUS(1) == 0. 159 */ 160 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != 0) 161 atf_tc_fail("not all descriptors were closed"); 162 } 163 164 ATF_TP_ADD_TCS(tp) 165 { 166 167 ATF_TP_ADD_TC(tp, closefrom_basic); 168 ATF_TP_ADD_TC(tp, closefrom_buffer); 169 ATF_TP_ADD_TC(tp, closefrom_err); 170 ATF_TP_ADD_TC(tp, closefrom_one); 171 172 return atf_no_error(); 173 } 174