1/* $NetBSD$ */ 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_exit.c,v 1.1 2011/05/09 07:31:51 jruoho Exp $"); 33 34#include <atf-c.h> 35#include <errno.h> 36#include <stdio.h> 37#include <unistd.h> 38 39static const char *path = "fflush"; 40 41ATF_TC_WITH_CLEANUP(fflush_err); 42ATF_TC_HEAD(fflush_err, tc) 43{ 44 atf_tc_set_md_var(tc, "descr", "Test errors from fflush(3)"); 45} 46 47ATF_TC_BODY(fflush_err, tc) 48{ 49 FILE *f; 50 51 f = fopen(path, "w"); 52 53 ATF_REQUIRE(f != NULL); 54 ATF_REQUIRE(fflush(NULL) == 0); 55 ATF_REQUIRE(fclose(f) == 0); 56 57 f = fopen(path, "r"); 58 ATF_REQUIRE(f != NULL); 59 60 /* 61 * In NetBSD the call should fail if the supplied 62 * parameteris not an open stream or the stream is 63 * not open for writing. 64 */ 65 errno = 0; 66 ATF_REQUIRE_ERRNO(EBADF, fflush(f) == EOF); 67 68 ATF_REQUIRE(fclose(f) == 0); 69 70 errno = 0; 71 ATF_REQUIRE_ERRNO(EBADF, fflush(f) == EOF); 72 73 (void)unlink(path); 74} 75 76ATF_TC_CLEANUP(fflush_err, tc) 77{ 78 (void)unlink(path); 79} 80 81ATF_TC_WITH_CLEANUP(fflush_seek); 82ATF_TC_HEAD(fflush_seek, tc) 83{ 84 atf_tc_set_md_var(tc, "descr", "Test file offsets with fflush(3)"); 85} 86 87ATF_TC_BODY(fflush_seek, tc) 88{ 89 char buf[12]; 90 int fd = -1; 91 FILE *f; 92 93 /* 94 * IEEE Std 1003.1-2008: 95 * 96 * "For a stream open for reading, if the file 97 * is not already at EOF, and the file is one 98 * capable of seeking, the file offset of the 99 * underlying open file description shall be 100 * adjusted so that the next operation on the 101 * open file description deals with the byte 102 * after the last one read from or written to 103 * the stream being flushed." 104 */ 105 f = fopen(path, "w"); 106 ATF_REQUIRE(f != NULL); 107 108 ATF_REQUIRE(fwrite("garbage", 1, 7, f) == 7); 109 ATF_REQUIRE(fclose(f) == 0); 110 111 f = fopen(path, "r+"); 112 ATF_REQUIRE(f != NULL); 113 114 fd = fileno(f); 115 ATF_REQUIRE(fd != -1); 116 117 ATF_REQUIRE(fread(buf, 1, 3, f) == 3); 118 ATF_REQUIRE(fflush(f) == 0); 119 ATF_REQUIRE(fseek(f, 0, SEEK_CUR) == 0); 120 121 /* 122 * Verify that the offsets are right and that 123 * a read operation resumes at the correct location. 124 */ 125 ATF_REQUIRE(ftell(f) == 3); 126 ATF_REQUIRE(lseek(fd, 0, SEEK_CUR) == 3); 127 ATF_REQUIRE(fgetc(f) == 'b'); 128 129 ATF_REQUIRE(fclose(f) == 0); 130 ATF_REQUIRE(unlink(path) == 0); 131} 132 133ATF_TC_CLEANUP(fflush_seek, tc) 134{ 135 (void)unlink(path); 136} 137 138ATF_TC_WITH_CLEANUP(fpurge_err); 139ATF_TC_HEAD(fpurge_err, tc) 140{ 141 atf_tc_set_md_var(tc, "descr", "Test errors from fpurge(3)"); 142} 143 144ATF_TC_BODY(fpurge_err, tc) 145{ 146 FILE *f; 147 148 f = fopen(path, "w"); 149 ATF_REQUIRE(f != NULL); 150 ATF_REQUIRE(fclose(f) == 0); 151 152 errno = 0; 153 ATF_REQUIRE_ERRNO(EBADF, fpurge(f) == EOF); 154 155 (void)unlink(path); 156} 157 158ATF_TC_CLEANUP(fpurge_err, tc) 159{ 160 (void)unlink(path); 161} 162 163ATF_TP_ADD_TCS(tp) 164{ 165 166 ATF_TP_ADD_TC(tp, fflush_err); 167 ATF_TP_ADD_TC(tp, fflush_seek); 168 ATF_TP_ADD_TC(tp, fpurge_err); 169 170 return atf_no_error(); 171} 172