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t_io.c revision 1.3 
      1 /*	$NetBSD: t_io.c,v 1.3 2011/01/01 20:26:22 pooka Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/stat.h>
     30 #include <sys/statvfs.h>
     31 
     32 #include <atf-c.h>
     33 #include <fcntl.h>
     34 #include <libgen.h>
     35 #include <stdlib.h>
     36 #include <unistd.h>
     37 
     38 #include <rump/rump_syscalls.h>
     39 #include <rump/rump.h>
     40 
     41 #include "../common/h_fsmacros.h"
     42 #include "../../h_macros.h"
     43 
     44 #define TESTSTR "this is a string.  collect enough and you'll have Em"
     45 #define TESTSZ sizeof(TESTSTR)
     46 
     47 static void
     48 holywrite(const atf_tc_t *tc, const char *mp)
     49 {
     50 	char buf[1024];
     51 	char *b2, *b3;
     52 	size_t therange = getpagesize()+1;
     53 	int fd;
     54 
     55 	FSTEST_ENTER();
     56 
     57 	RL(fd = rump_sys_open("file", O_RDWR|O_CREAT|O_TRUNC, 0666));
     58 
     59 	memset(buf, 'A', sizeof(buf));
     60 	RL(rump_sys_pwrite(fd, buf, 1, getpagesize()));
     61 
     62 	memset(buf, 'B', sizeof(buf));
     63 	RL(rump_sys_pwrite(fd, buf, 2, 0xfff));
     64 
     65 	REQUIRE_LIBC(b2 = malloc(2 * getpagesize()), NULL);
     66 	REQUIRE_LIBC(b3 = malloc(2 * getpagesize()), NULL);
     67 
     68 	RL(rump_sys_pread(fd, b2, therange, 0));
     69 
     70 	memset(b3, 0, therange);
     71 	memset(b3 + getpagesize() - 1, 'B', 2);
     72 
     73 	ATF_REQUIRE_EQ(memcmp(b2, b3, therange), 0);
     74 
     75 	rump_sys_close(fd);
     76 	FSTEST_EXIT();
     77 }
     78 
     79 static void
     80 extendbody(const atf_tc_t *tc, off_t seekcnt)
     81 {
     82 	char buf[TESTSZ+1];
     83 	struct stat sb;
     84 	int fd;
     85 
     86 	FSTEST_ENTER();
     87 	RL(fd = rump_sys_open("testfile",
     88 	    O_CREAT | O_RDWR | (seekcnt ? O_APPEND : 0)));
     89 	RL(rump_sys_ftruncate(fd, seekcnt));
     90 	RL(rump_sys_fstat(fd, &sb));
     91 	if (FSTYPE_SYSVBFS(tc) && seekcnt)
     92 		atf_tc_expect_fail("fail");
     93 	ATF_REQUIRE_EQ(sb.st_size, seekcnt);
     94 	atf_tc_expect_pass();
     95 
     96 	ATF_REQUIRE_EQ(rump_sys_write(fd, TESTSTR, TESTSZ), TESTSZ);
     97 	ATF_REQUIRE_EQ(rump_sys_pread(fd, buf, TESTSZ, seekcnt), TESTSZ);
     98 	ATF_REQUIRE_STREQ(buf, TESTSTR);
     99 
    100 	RL(rump_sys_fstat(fd, &sb));
    101 	ATF_REQUIRE_EQ(sb.st_size, TESTSZ + seekcnt);
    102 	RL(rump_sys_close(fd));
    103 	FSTEST_EXIT();
    104 }
    105 
    106 static void
    107 extendfile(const atf_tc_t *tc, const char *mp)
    108 {
    109 
    110 	extendbody(tc, 0);
    111 }
    112 
    113 static void
    114 extendfile_append(const atf_tc_t *tc, const char *mp)
    115 {
    116 
    117 	extendbody(tc, 37);
    118 }
    119 
    120 ATF_TC_FSAPPLY(holywrite, "create a sparse file and fill hole");
    121 ATF_TC_FSAPPLY(extendfile, "check that extending a file works");
    122 ATF_TC_FSAPPLY(extendfile_append, "check that extending a file works "
    123 				  "with a append-only fd");
    124 
    125 ATF_TP_ADD_TCS(tp)
    126 {
    127 
    128 	ATF_TP_FSAPPLY(holywrite);
    129 	ATF_TP_FSAPPLY(extendfile);
    130 	ATF_TP_FSAPPLY(extendfile_append);
    131 
    132 	return atf_no_error();
    133 }
    134