202 lines
5.6 KiB
C
202 lines
5.6 KiB
C
/*-
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* Copyright (c) 2013 Hudson River Trading LLC
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* Written by: John H. Baldwin <jhb@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include <atf-c.h>
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static wchar_t *buf;
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static size_t len;
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static void
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assert_stream(const wchar_t *contents)
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{
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if (wcslen(contents) != len)
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printf("bad length %zd for \"%ls\"\n", len, contents);
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else if (wcsncmp(buf, contents, wcslen(contents)) != 0)
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printf("bad buffer \"%ls\" for \"%ls\"\n", buf, contents);
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}
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ATF_TC_WITHOUT_HEAD(open_group_test);
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ATF_TC_BODY(open_group_test, tc)
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{
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FILE *fp;
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off_t eob;
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fp = open_wmemstream(&buf, &len);
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ATF_REQUIRE_MSG(fp != NULL, "open_wmemstream failed");
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fwprintf(fp, L"hello my world");
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fflush(fp);
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assert_stream(L"hello my world");
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eob = ftello(fp);
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rewind(fp);
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fwprintf(fp, L"good-bye");
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fseeko(fp, eob, SEEK_SET);
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fclose(fp);
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assert_stream(L"good-bye world");
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free(buf);
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}
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ATF_TC_WITHOUT_HEAD(simple_tests);
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ATF_TC_BODY(simple_tests, tc)
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{
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static const wchar_t zerobuf[] =
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{ L'f', L'o', L'o', 0, 0, 0, 0, L'b', L'a', L'r', 0 };
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wchar_t c;
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FILE *fp;
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fp = open_wmemstream(&buf, NULL);
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ATF_REQUIRE_MSG(fp == NULL, "open_wmemstream did not fail");
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ATF_REQUIRE_MSG(errno == EINVAL,
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"open_wmemstream didn't fail with EINVAL");
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fp = open_wmemstream(NULL, &len);
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ATF_REQUIRE_MSG(fp == NULL, "open_wmemstream did not fail");
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ATF_REQUIRE_MSG(errno == EINVAL,
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"open_wmemstream didn't fail with EINVAL");
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fp = open_wmemstream(&buf, &len);
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ATF_REQUIRE_MSG(fp != NULL, "open_memstream failed; errno=%d", errno);
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fflush(fp);
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assert_stream(L"");
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if (fwide(fp, 0) <= 0)
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printf("stream is not wide-oriented\n");
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fwprintf(fp, L"fo");
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fflush(fp);
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assert_stream(L"fo");
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fputwc(L'o', fp);
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fflush(fp);
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assert_stream(L"foo");
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rewind(fp);
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fflush(fp);
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assert_stream(L"");
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fseek(fp, 0, SEEK_END);
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fflush(fp);
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assert_stream(L"foo");
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/*
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* Test seeking out past the current end. Should zero-fill the
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* intermediate area.
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*/
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fseek(fp, 4, SEEK_END);
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fwprintf(fp, L"bar");
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fflush(fp);
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/*
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* Can't use assert_stream() here since this should contain
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* embedded null characters.
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*/
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if (len != 10)
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printf("bad length %zd for zero-fill test\n", len);
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else if (memcmp(buf, zerobuf, sizeof(zerobuf)) != 0)
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printf("bad buffer for zero-fill test\n");
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fseek(fp, 3, SEEK_SET);
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fwprintf(fp, L" in ");
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fflush(fp);
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assert_stream(L"foo in ");
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fseek(fp, 0, SEEK_END);
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fflush(fp);
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assert_stream(L"foo in bar");
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rewind(fp);
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if (fread(&c, sizeof(c), 1, fp) != 0)
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printf("fread did not fail\n");
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else if (!ferror(fp))
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printf("error indicator not set after fread\n");
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else
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clearerr(fp);
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fseek(fp, 4, SEEK_SET);
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fwprintf(fp, L"bar baz");
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fclose(fp);
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assert_stream(L"foo bar baz");
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free(buf);
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}
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ATF_TC_WITHOUT_HEAD(seek_tests);
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ATF_TC_BODY(seek_tests, tc)
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{
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FILE *fp;
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fp = open_wmemstream(&buf, &len);
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ATF_REQUIRE_MSG(fp != NULL, "open_wmemstream failed; errno=%d", errno);
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#define SEEK_FAIL(offset, whence, error) do { \
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errno = 0; \
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ATF_REQUIRE_MSG(fseeko(fp, (offset), (whence)) != 0, \
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"fseeko(%s, %s) did not fail, set pos to %jd", \
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__STRING(offset), __STRING(whence), \
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(intmax_t)ftello(fp)); \
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ATF_REQUIRE_MSG(errno == (error), \
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"fseeko(%s, %s) failed with %d rather than %s", \
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__STRING(offset), __STRING(whence), errno, \
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__STRING(error)); \
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} while (0)
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#define SEEK_OK(offset, whence, result) do { \
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ATF_REQUIRE_MSG(fseeko(fp, (offset), (whence)) == 0, \
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"fseeko(%s, %s) failed: %s", \
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__STRING(offset), __STRING(whence), strerror(errno)); \
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ATF_REQUIRE_MSG(ftello(fp) == (result), \
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"fseeko(%s, %s) seeked to %jd rather than %s", \
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__STRING(offset), __STRING(whence), \
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(intmax_t)ftello(fp), __STRING(result)); \
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} while (0)
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SEEK_FAIL(-1, SEEK_SET, EINVAL);
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SEEK_FAIL(-1, SEEK_CUR, EINVAL);
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SEEK_FAIL(-1, SEEK_END, EINVAL);
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fwprintf(fp, L"foo");
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SEEK_OK(-1, SEEK_CUR, 2);
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SEEK_OK(0, SEEK_SET, 0);
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SEEK_OK(-1, SEEK_END, 2);
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SEEK_OK(OFF_MAX - 1, SEEK_SET, OFF_MAX - 1);
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SEEK_FAIL(2, SEEK_CUR, EOVERFLOW);
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fclose(fp);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, open_group_test);
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ATF_TP_ADD_TC(tp, simple_tests);
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ATF_TP_ADD_TC(tp, seek_tests);
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return (atf_no_error());
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}
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