1 /*- 2 * Copyright (c) 2013 Hudson River Trading LLC 3 * Written by: John H. Baldwin <jhb@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 #include <err.h> 30 #include <errno.h> 31 #include <limits.h> 32 #include <stdint.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <wchar.h> 37 38 #include <atf-c.h> 39 40 static wchar_t *buf; 41 static size_t len; 42 43 static void 44 assert_stream(const wchar_t *contents) 45 { 46 if (wcslen(contents) != len) 47 printf("bad length %zd for \"%ls\"\n", len, contents); 48 else if (wcsncmp(buf, contents, wcslen(contents)) != 0) 49 printf("bad buffer \"%ls\" for \"%ls\"\n", buf, contents); 50 } 51 52 ATF_TC_WITHOUT_HEAD(open_group_test); 53 ATF_TC_BODY(open_group_test, tc) 54 { 55 FILE *fp; 56 off_t eob; 57 58 fp = open_wmemstream(&buf, &len); 59 ATF_REQUIRE_MSG(fp != NULL, "open_wmemstream failed"); 60 61 fwprintf(fp, L"hello my world"); 62 fflush(fp); 63 assert_stream(L"hello my world"); 64 eob = ftello(fp); 65 rewind(fp); 66 fwprintf(fp, L"good-bye"); 67 fseeko(fp, eob, SEEK_SET); 68 fclose(fp); 69 assert_stream(L"good-bye world"); 70 free(buf); 71 } 72 73 ATF_TC_WITHOUT_HEAD(simple_tests); 74 ATF_TC_BODY(simple_tests, tc) 75 { 76 static const wchar_t zerobuf[] = 77 { L'f', L'o', L'o', 0, 0, 0, 0, L'b', L'a', L'r', 0 }; 78 wchar_t c; 79 FILE *fp; 80 81 fp = open_wmemstream(&buf, NULL); 82 ATF_REQUIRE_MSG(fp == NULL, "open_wmemstream did not fail"); 83 ATF_REQUIRE_MSG(errno == EINVAL, 84 "open_wmemstream didn't fail with EINVAL"); 85 fp = open_wmemstream(NULL, &len); 86 ATF_REQUIRE_MSG(fp == NULL, "open_wmemstream did not fail"); 87 ATF_REQUIRE_MSG(errno == EINVAL, 88 "open_wmemstream didn't fail with EINVAL"); 89 fp = open_wmemstream(&buf, &len); 90 ATF_REQUIRE_MSG(fp != NULL, "open_memstream failed; errno=%d", errno); 91 fflush(fp); 92 assert_stream(L""); 93 if (fwide(fp, 0) <= 0) 94 printf("stream is not wide-oriented\n"); 95 96 fwprintf(fp, L"fo"); 97 fflush(fp); 98 assert_stream(L"fo"); 99 fputwc(L'o', fp); 100 fflush(fp); 101 assert_stream(L"foo"); 102 rewind(fp); 103 fflush(fp); 104 assert_stream(L""); 105 fseek(fp, 0, SEEK_END); 106 fflush(fp); 107 assert_stream(L"foo"); 108 109 /* 110 * Test seeking out past the current end. Should zero-fill the 111 * intermediate area. 112 */ 113 fseek(fp, 4, SEEK_END); 114 fwprintf(fp, L"bar"); 115 fflush(fp); 116 117 /* 118 * Can't use assert_stream() here since this should contain 119 * embedded null characters. 120 */ 121 if (len != 10) 122 printf("bad length %zd for zero-fill test\n", len); 123 else if (memcmp(buf, zerobuf, sizeof(zerobuf)) != 0) 124 printf("bad buffer for zero-fill test\n"); 125 126 fseek(fp, 3, SEEK_SET); 127 fwprintf(fp, L" in "); 128 fflush(fp); 129 assert_stream(L"foo in "); 130 fseek(fp, 0, SEEK_END); 131 fflush(fp); 132 assert_stream(L"foo in bar"); 133 134 rewind(fp); 135 if (fread(&c, sizeof(c), 1, fp) != 0) 136 printf("fread did not fail\n"); 137 else if (!ferror(fp)) 138 printf("error indicator not set after fread\n"); 139 else 140 clearerr(fp); 141 142 fseek(fp, 4, SEEK_SET); 143 fwprintf(fp, L"bar baz"); 144 fclose(fp); 145 assert_stream(L"foo bar baz"); 146 free(buf); 147 } 148 149 ATF_TC_WITHOUT_HEAD(seek_tests); 150 ATF_TC_BODY(seek_tests, tc) 151 { 152 FILE *fp; 153 154 fp = open_wmemstream(&buf, &len); 155 ATF_REQUIRE_MSG(fp != NULL, "open_wmemstream failed; errno=%d", errno); 156 157 #define SEEK_FAIL(offset, whence, error) do { \ 158 errno = 0; \ 159 ATF_REQUIRE_MSG(fseeko(fp, (offset), (whence)) != 0, \ 160 "fseeko(%s, %s) did not fail, set pos to %jd", \ 161 __STRING(offset), __STRING(whence), \ 162 (intmax_t)ftello(fp)); \ 163 ATF_REQUIRE_MSG(errno == (error), \ 164 "fseeko(%s, %s) failed with %d rather than %s", \ 165 __STRING(offset), __STRING(whence), errno, \ 166 __STRING(error)); \ 167 } while (0) 168 169 #define SEEK_OK(offset, whence, result) do { \ 170 ATF_REQUIRE_MSG(fseeko(fp, (offset), (whence)) == 0, \ 171 "fseeko(%s, %s) failed: %s", \ 172 __STRING(offset), __STRING(whence), strerror(errno)); \ 173 ATF_REQUIRE_MSG(ftello(fp) == (result), \ 174 "fseeko(%s, %s) seeked to %jd rather than %s", \ 175 __STRING(offset), __STRING(whence), \ 176 (intmax_t)ftello(fp), __STRING(result)); \ 177 } while (0) 178 179 SEEK_FAIL(-1, SEEK_SET, EINVAL); 180 SEEK_FAIL(-1, SEEK_CUR, EINVAL); 181 SEEK_FAIL(-1, SEEK_END, EINVAL); 182 fwprintf(fp, L"foo"); 183 SEEK_OK(-1, SEEK_CUR, 2); 184 SEEK_OK(0, SEEK_SET, 0); 185 SEEK_OK(-1, SEEK_END, 2); 186 SEEK_OK(OFF_MAX - 1, SEEK_SET, OFF_MAX - 1); 187 SEEK_FAIL(2, SEEK_CUR, EOVERFLOW); 188 fclose(fp); 189 } 190 191 ATF_TP_ADD_TCS(tp) 192 { 193 194 ATF_TP_ADD_TC(tp, open_group_test); 195 ATF_TP_ADD_TC(tp, simple_tests); 196 ATF_TP_ADD_TC(tp, seek_tests); 197 198 return (atf_no_error()); 199 } 200