110 lines
2.1 KiB
C
110 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
*/
|
|
|
|
/*
|
|
* DESCRIPTION
|
|
* Testcase to check the basic functionality of the getcwd(2) system call.
|
|
* 1) getcwd(2) works fine if buf and size are valid.
|
|
* 2) getcwd(2) works fine if buf points to NULL and size is set to 0.
|
|
* 3) getcwd(2) works fine if buf points to NULL and size is greater than strlen(path).
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include "tst_test.h"
|
|
|
|
static char exp_buf[PATH_MAX];
|
|
static char buffer[PATH_MAX];
|
|
|
|
static struct t_case {
|
|
char *buf;
|
|
size_t size;
|
|
} tcases[] = {
|
|
{buffer, sizeof(buffer)},
|
|
{NULL, 0},
|
|
{NULL, PATH_MAX}
|
|
};
|
|
|
|
static int dir_exists(const char *dirpath)
|
|
{
|
|
struct stat sb;
|
|
|
|
if (!stat(dirpath, &sb) && S_ISDIR(sb.st_mode))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *get_tmpdir_path(void)
|
|
{
|
|
char *tmpdir = "/tmp";
|
|
|
|
if (dir_exists(tmpdir))
|
|
goto done;
|
|
|
|
/* fallback to $TMPDIR */
|
|
tmpdir = getenv("TMPDIR");
|
|
if (!tmpdir)
|
|
tst_brk(TBROK | TERRNO, "Failed to get $TMPDIR");
|
|
|
|
if (tmpdir[0] != '/')
|
|
tst_brk(TBROK, "$TMPDIR must be an absolute path");
|
|
|
|
if (!dir_exists(tmpdir))
|
|
tst_brk(TBROK | TERRNO, "TMPDIR '%s' doesn't exist", tmpdir);
|
|
|
|
done:
|
|
return tmpdir;
|
|
}
|
|
|
|
static void verify_getcwd(unsigned int n)
|
|
{
|
|
struct t_case *tc = &tcases[n];
|
|
char *res = NULL;
|
|
|
|
errno = 0;
|
|
res = getcwd(tc->buf, tc->size);
|
|
TST_ERR = errno;
|
|
if (!res) {
|
|
tst_res(TFAIL | TTERRNO, "getcwd() failed");
|
|
goto end;
|
|
}
|
|
|
|
if (strcmp(exp_buf, res)) {
|
|
tst_res(TFAIL, "getcwd() returned unexpected directory: %s, "
|
|
"expected: %s", res, exp_buf);
|
|
goto end;
|
|
}
|
|
|
|
tst_res(TPASS, "getcwd() returned expected directory: %s", res);
|
|
|
|
end:
|
|
if (!tc->buf)
|
|
free(res);
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
const char *tmpdir = get_tmpdir_path();
|
|
|
|
SAFE_CHDIR(tmpdir);
|
|
|
|
if (!realpath(tmpdir, exp_buf))
|
|
tst_brk(TBROK | TERRNO, "realpath() failed");
|
|
|
|
tst_res(TINFO, "Expected path '%s'", exp_buf);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.setup = setup,
|
|
.tcnt = ARRAY_SIZE(tcases),
|
|
.test = verify_getcwd
|
|
};
|