subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) International Business Machines Corp., 2001 |
| 4 | * Copyright (c) Red Hat Inc., 2007 |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 14 | * the GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | /* |
| 22 | * NAME |
| 23 | * sendfile07.c |
| 24 | * |
| 25 | * DESCRIPTION |
| 26 | * Testcase to test that sendfile(2) system call returns EAGAIN |
| 27 | * when passing blocked out_fd. Here out_fd is opend with O_NONBLOCK. |
| 28 | * |
| 29 | * ALGORITHM |
| 30 | * 1. Make sockets with socketpair(&p). Use p[1] as out_fd. |
| 31 | * 2. Set O_NONBLOCK flag of out_fd on. |
| 32 | * 3. Write much datum to out_fd till write() returns EAGAIN. |
| 33 | * 4. Call sendfile with out_fd, and expect EAGAIN. |
| 34 | * |
| 35 | * USAGE: <for command-line> |
| 36 | * sendfile07 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| 37 | * where, -c n : Run n copies concurrently. |
| 38 | * -e : Turn on errno logging. |
| 39 | * -i n : Execute test n times. |
| 40 | * -I x : Execute test for x seconds. |
| 41 | * -P x : Pause for x seconds between iterations. |
| 42 | * -t : Turn on syscall timing. |
| 43 | * |
| 44 | * HISTORY |
| 45 | * 12/2007 Copyed from sendfile03.c by Masatake YAMATO |
| 46 | * |
| 47 | * RESTRICTIONS |
| 48 | * NONE |
| 49 | */ |
| 50 | |
| 51 | #include <stdio.h> |
| 52 | #include <errno.h> |
| 53 | #include <fcntl.h> |
| 54 | #include <sys/sendfile.h> |
| 55 | #include <sys/socket.h> |
| 56 | |
| 57 | #include "usctest.h" |
| 58 | #include "test.h" |
| 59 | |
| 60 | #ifndef OFF_T |
| 61 | #define OFF_T off_t |
| 62 | #endif /* Not def: OFF_T */ |
| 63 | |
subrata_modak | 585950c | 2008-08-20 10:55:19 +0000 | [diff] [blame] | 64 | TCID_DEFINE(sendfile07); |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 65 | int TST_TOTAL = 1; |
| 66 | extern int Tst_count; |
| 67 | |
| 68 | int in_fd, out_fd = 0, ignored_fd = 0; |
| 69 | char in_file[100]; |
| 70 | |
| 71 | /* To make out_fd overflow, write much chars |
| 72 | to out_fd. MAX_FILL_DATA_LENGTH defines the `much'. */ |
| 73 | #define MAX_FILL_DATA_LENGTH 0xFFFFFFF |
| 74 | |
| 75 | void cleanup(void); |
| 76 | void setup(void); |
| 77 | |
| 78 | int main(int ac, char **av) |
| 79 | { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 80 | int lc; /* loop counter */ |
| 81 | char *msg; /* parse_opts() return message */ |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 82 | |
Garrett Cooper | e1f008e | 2010-12-14 00:21:59 -0800 | [diff] [blame^] | 83 | if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 84 | tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 85 | /*NOTREACHED*/} |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 86 | |
| 87 | setup(); |
| 88 | |
| 89 | /* |
| 90 | * The following loop checks looping state if -c option given |
| 91 | */ |
| 92 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 93 | Tst_count = 0; |
| 94 | |
| 95 | TEST(sendfile(out_fd, in_fd, NULL, 1)); |
| 96 | |
| 97 | if (TEST_RETURN != -1) { |
| 98 | tst_resm(TFAIL, "call succeeded unexpectedly"); |
| 99 | continue; |
| 100 | } |
| 101 | |
| 102 | TEST_ERROR_LOG(TEST_ERRNO); |
| 103 | |
| 104 | if (TEST_ERRNO != EAGAIN) { |
| 105 | tst_resm(TFAIL, "sendfile returned unexpected " |
| 106 | "errno, expected: %d, got: %d", |
| 107 | EAGAIN, TEST_ERRNO); |
| 108 | } else { |
| 109 | tst_resm(TPASS, "sendfile() returned %d : %s", |
| 110 | TEST_ERRNO, strerror(TEST_ERRNO)); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | cleanup(); |
| 115 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 116 | /*NOTREACHED*/ return 0; |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | /* |
| 120 | * setup() - performs all ONE TIME setup for this test. |
| 121 | */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 122 | void setup() |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 123 | { |
| 124 | char buf[100]; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 125 | int p[2]; |
| 126 | int i, r; |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 127 | |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 128 | /* capture signals */ |
| 129 | tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| 130 | |
| 131 | /* Pause if that option was specified */ |
| 132 | TEST_PAUSE; |
| 133 | |
| 134 | /* make a temporary directory and cd to it */ |
| 135 | tst_tmpdir(); |
| 136 | |
| 137 | sprintf(in_file, "in.%d", getpid()); |
| 138 | if ((in_fd = creat(in_file, 00700)) < 0) { |
| 139 | tst_brkm(TBROK, cleanup, "creat failed in setup, errno: %d", |
| 140 | errno); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 141 | /*NOTREACHED*/} |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 142 | sprintf(buf, "abcdefghijklmnopqrstuvwxyz"); |
| 143 | if (write(in_fd, buf, strlen(buf)) < 0) { |
| 144 | tst_brkm(TBROK, cleanup, "write failed, errno: %d", errno); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 145 | /*NOTREACHED*/} |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 146 | close(in_fd); |
| 147 | if ((in_fd = open(in_file, O_RDONLY)) < 0) { |
| 148 | tst_brkm(TBROK, cleanup, "open failed, errno: %d", errno); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 149 | /*NOTREACHED*/} |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 150 | |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 151 | /* Make fulfilled out_fd. */ |
| 152 | if (socketpair(PF_UNIX, SOCK_DGRAM, 0, p) < 0) { |
| 153 | tst_brkm(TBROK, cleanup, "socketpair failed, errno: %d", errno); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 154 | /*NOTREACHED*/} |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 155 | |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 156 | /* Don't close. |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 157 | You cannot write nothing on out_fd if ignored_fd is closed. */ |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 158 | ignored_fd = p[0]; |
| 159 | out_fd = p[1]; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 160 | if (fcntl(out_fd, F_SETFL, O_WRONLY | O_NONBLOCK) < 0) { |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 161 | tst_brkm(TBROK, cleanup, "fcntl failed, errno: %d", errno); |
| 162 | } |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 163 | |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 164 | i = MAX_FILL_DATA_LENGTH; |
| 165 | while (i > 0) { |
| 166 | r = write(out_fd, buf, 1); |
| 167 | if (r < 0) { |
| 168 | if (errno == EAGAIN) { |
| 169 | break; |
| 170 | } else { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 171 | tst_brkm(TBROK, cleanup, |
| 172 | "write failed to fill out_fd, errno: %d", |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 173 | errno); |
| 174 | } |
| 175 | } |
| 176 | i--; |
| 177 | } |
| 178 | if (i == 0) { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 179 | tst_brkm(TBROK, cleanup, |
| 180 | "fail to fill out_fd, write %d bytes but EAGAIN it not returned.", |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 181 | MAX_FILL_DATA_LENGTH); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /* |
| 186 | * cleanup() - performs all ONE TIME cleanup for this test at |
| 187 | * completion or premature exit. |
| 188 | */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 189 | void cleanup() |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 190 | { |
| 191 | /* |
| 192 | * print timing stats if that option was specified. |
| 193 | * print errno log if that option was specified. |
| 194 | */ |
| 195 | if (out_fd) |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 196 | close(out_fd); |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 197 | if (ignored_fd) |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 198 | close(ignored_fd); |
subrata_modak | 498546d | 2007-12-05 08:44:26 +0000 | [diff] [blame] | 199 | close(in_fd); |
| 200 | |
| 201 | TEST_CLEANUP; |
| 202 | |
| 203 | /* delete the test directory created in setup() */ |
| 204 | tst_rmdir(); |
| 205 | |
| 206 | /* exit with return code appropriate for results */ |
| 207 | tst_exit(); |
| 208 | } |