1 /* $NetBSD: t_clearerr.c,v 1.1 2011/05/01 16:36:37 jruoho Exp $ */ 2 3 /* 4 * Copyright (c) 2009, Stathis Kamperis 5 * All rights reserved. 6 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 20 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 #include <sys/cdefs.h> 30 __RCSID("$NetBSD: t_clearerr.c,v 1.1 2011/05/01 16:36:37 jruoho Exp $"); 31 32 #include <atf-c.h> 33 #include <errno.h> 34 #include <stdio.h> 35 36 static const char path[] = "/etc/passwd"; 37 38 ATF_TC(clearerr_basic); 39 ATF_TC_HEAD(clearerr_basic, tc) 40 { 41 atf_tc_set_md_var(tc, "descr", "A basic test of clearerr(3)"); 42 } 43 44 ATF_TC_BODY(clearerr_basic, tc) 45 { 46 char buf[2048]; 47 FILE *fp; 48 49 fp = fopen(path, "r"); 50 ATF_REQUIRE(fp != NULL); 51 52 while (feof(fp) == 0) 53 (void)fread(buf, sizeof(buf), 1, fp); 54 55 ATF_REQUIRE(feof(fp) != 0); 56 57 errno = 0; 58 clearerr(fp); 59 60 ATF_REQUIRE(errno == 0); 61 ATF_REQUIRE(feof(fp) == 0); 62 ATF_REQUIRE(fclose(fp) != EOF); 63 } 64 65 ATF_TC(clearerr_err); 66 ATF_TC_HEAD(clearerr_err, tc) 67 { 68 atf_tc_set_md_var(tc, "descr", "Test that clearerr(3) does not fail"); 69 } 70 71 ATF_TC_BODY(clearerr_err, tc) 72 { 73 FILE *fp; 74 75 fp = fopen(path, "r"); 76 77 ATF_REQUIRE(fp != NULL); 78 ATF_REQUIRE(fclose(fp) == 0); 79 80 errno = 0; 81 clearerr(fp); 82 83 ATF_REQUIRE(errno == 0); 84 } 85 86 ATF_TP_ADD_TCS(tp) 87 { 88 89 ATF_TP_ADD_TC(tp, clearerr_basic); 90 ATF_TP_ADD_TC(tp, clearerr_err); 91 92 return atf_no_error(); 93 } 94