Attachment 162664 Details for Bug 204156 – Source file (stripped of "ATF-ness")

Source file (stripped of "ATF-ness")

fmemopen2_test.c (text/x-csrc), 3.25 KB, created by Enji Cooper on 2015-11-01 05:14:31 UTC

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Creator: Enji Cooper

Created: 2015-11-01 05:14:31 UTC

Size: 3.25 KB

patch

obsolete

>/*-
>Copyright (C) 2013 Pietro Cerutti <gahr@FreeBSD.org>
>
>Redistribution and use in source and binary forms, with or without
>modification, are permitted provided that the following conditions
>are met:
>1. Redistributions of source code must retain the above copyright
>   notice, this list of conditions and the following disclaimer.
>2. Redistributions in binary form must reproduce the above copyright
>   notice, this list of conditions and the following disclaimer in the
>   documentation and/or other materials provided with the distribution.
>
>THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
>ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
>ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
>FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
>DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
>OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
>HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
>LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
>OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
>SUCH DAMAGE.
>*/
>
>/*
> * Test basic FILE * functions (fread, fwrite, fseek, fclose) against
> * a FILE * retrieved using fmemopen()
> */
>
>#include <sys/cdefs.h>
>__FBSDID("$FreeBSD: user/ngie/more-tests/lib/libc/tests/stdio/fmemopen2_test.c 288382 2015-09-29 17:54:28Z delphij $");
>
>#include <assert.h>
>#include <errno.h>
>#include <stdio.h>
>#include <string.h>
>#include <strings.h>
>
>#define	ATF_REQUIRE	assert
>
>int
>main(void)
>{
>	/*
>	 * Here we test that a read operation doesn't go past the end of the
>	 * data actually written, and that a SEEK_END seeks from the end of the
>	 * data, not of the whole buffer.
>	 */
>	FILE *fp;
>	char buf[512] = {'\0'};
>	char str[]  = "Test data length. ";
>	char str2[] = "Do we have two sentences?";
>	char str3[sizeof(str) + sizeof(str2) -1];
>	long pos;
>	size_t nofw, nofr;
>	int rc;
>
>	/* Open a FILE * for updating our buffer. */
>	fp = fmemopen(buf, sizeof(buf), "w+");
>	ATF_REQUIRE(fp != NULL);
>
>	/* Write our string into the buffer. */
>	nofw = fwrite(str, 1, sizeof(str), fp);
>	ATF_REQUIRE(nofw == sizeof(str));
>
>	/* 
>	 * Now seek to the end and check that ftell
>	 * gives us sizeof(str).
>	 */
>	rc = fseek(fp, 0, SEEK_END);
>	ATF_REQUIRE(rc == 0);
>	pos = ftell(fp);
>	ATF_REQUIRE(pos == sizeof(str));
>
>	/* Close the FILE *. */
>	rc = fclose(fp);
>	ATF_REQUIRE(rc == 0);
>
>	/* Reopen the buffer for appending. */
>	fp = fmemopen(buf, sizeof(buf), "a+");
>	ATF_REQUIRE(fp != NULL);
>
>	/* We should now be writing after the first string. */
>	nofw = fwrite(str2, 1, sizeof(str2), fp);
>	ATF_REQUIRE(nofw == sizeof(str2));
>
>	/* Rewind the FILE *. */
>	rc = fseek(fp, 0, SEEK_SET);
>	ATF_REQUIRE(rc == 0);
>
>	/* Make sure we're at the beginning. */
>	pos = ftell(fp);
>	ATF_REQUIRE(pos == 0);
>
>	/* Read the whole buffer. */
>	nofr = fread(str3, 1, sizeof(buf), fp);
>	ATF_REQUIRE(nofr == sizeof(str3));
>
>	/* Make sure the two strings are there. */
>	ATF_REQUIRE(strncmp(str3, str, sizeof(str) - 1) == 0);
>	ATF_REQUIRE(strncmp(str3 + sizeof(str) - 1, str2, sizeof(str2)) == 0);
>
>	/* Close the FILE *. */
>	rc = fclose(fp);
>	ATF_REQUIRE(rc == 0);
>
>	return (0);
>}

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Attachments on bug 204156: 162664