strace/tests/readdir.c

82 lines
2.3 KiB
C

/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#ifdef __NR_readdir
# include <assert.h>
# include <dirent.h>
# include <fcntl.h>
# include <stdio.h>
# include <string.h>
# include <sys/stat.h>
# include <unistd.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";
int
main(void)
{
static const char dname[] = "readdir.test.tmp.dir";
struct {
unsigned long d_ino;
unsigned long d_off;
unsigned short d_reclen;
char d_name[1024];
} e;
int rc;
assert(!mkdir(dname, 0700));
assert(!chdir(dname));
(void) close(0);
assert(!creat(fname, 0600));
assert(!close(0));
assert(!open(".", O_RDONLY | O_DIRECTORY));
while ((rc = syscall(__NR_readdir, 0, &e, 1))) {
if (rc < 0)
perror_msg_and_skip("readdir");
e.d_name[e.d_reclen] = '\0';
printf("readdir(0, {d_ino=%lu, d_off=%lu, d_reclen=%u"
", d_name=\"%s\"}) = %d\n",
e.d_ino, e.d_off, e.d_reclen,
e.d_name[0] == '.' ? e.d_name : qname, rc);
}
printf("readdir(0, %p) = 0\n", &e);
puts("+++ exited with 0 +++");
assert(!unlink(fname));
assert(!chdir(".."));
assert(!rmdir(dname));
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_readdir")
#endif