blob: 7ea2067feb5ac2a01b5379a12bb0199588f18cac [file] [log] [blame]
/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
#include "tests.h"
#include <sys/syscall.h>
#ifdef __NR_getdents
# include <assert.h>
# include <dirent.h>
# include <fcntl.h>
# include <stddef.h>
# include <stdio.h>
# include <sys/stat.h>
# include <unistd.h>
# include "kernel_types.h"
static const char fname[] =
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n"
"A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nZ";
static const char qname[] =
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n"
"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nZ";
static char buf[8192];
static const char *
str_d_type(const unsigned char d_type)
{
switch (d_type) {
case DT_DIR:
return "DT_DIR";
case DT_REG:
return "DT_REG";
default:
return "DT_UNKNOWN";
}
}
static void
print_dirent(const kernel_dirent *d)
{
const unsigned int d_name_offset = offsetof(kernel_dirent, d_name);
int d_name_len = d->d_reclen - d_name_offset - 1;
assert(d_name_len > 0);
printf("{d_ino=%llu, d_off=%llu, d_reclen=%u, d_name=",
(unsigned long long) d->d_ino,
(unsigned long long) d->d_off, d->d_reclen);
if (d->d_name[0] == '.')
printf("\"%.*s\"", d_name_len, d->d_name);
else
printf("\"%s\"", qname);
printf(", d_type=%s}",
str_d_type(*((const char *) d + d->d_reclen - 1)));
}
int
main(int ac, const char **av)
{
char *dname;
assert(ac == 1);
assert(asprintf(&dname, "%s.test.tmp.dir", av[0]) > 0);
assert(!mkdir(dname, 0700));
assert(!chdir(dname));
(void) close(0);
assert(!creat(fname, 0600));
assert(!close(0));
assert(!open(".", O_RDONLY | O_DIRECTORY));
unsigned long count = (unsigned long) 0xfacefeeddeadbeef;
long rc = syscall(__NR_getdents, (long) 0xdefacedffffffff, NULL, count);
printf("getdents(-1, NULL, %u) = %ld %s (%m)\n",
(unsigned) count, rc, errno2name());
count = (unsigned long) 0xfacefeed00000000 | sizeof(buf);
while ((rc = syscall(__NR_getdents, 0, buf, count))) {
kernel_dirent *d;
long i;
if (rc < 0)
perror_msg_and_skip("getdents");
printf("getdents(0, [");
for (i = 0; i < rc; i += d->d_reclen) {
d = (kernel_dirent *) &buf[i];
if (i)
printf(", ");
print_dirent(d);
}
printf("], %u) = %ld\n", (unsigned) count, rc);
}
printf("getdents(0, [], %u) = 0\n", (unsigned) count);
puts("+++ exited with 0 +++");
assert(!unlink(fname));
assert(!chdir(".."));
assert(!rmdir(dname));
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_getdents")
#endif