vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/* Tests of readlinkat.
|
|
Copyright (C) 2009-2025 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Written by Eric Blake <ebb9@byu.net>, 2009. */
|
|
|
|
#include <config.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include "signature.h"
|
|
SIGNATURE_CHECK (readlinkat, ssize_t, (int, char const *, char *, size_t));
|
|
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include "ignore-value.h"
|
|
#include "macros.h"
|
|
|
|
#ifndef HAVE_SYMLINK
|
|
# define HAVE_SYMLINK 0
|
|
#endif
|
|
|
|
#define BASE "test-readlinkat.t"
|
|
|
|
#include "test-readlink.h"
|
|
|
|
static int dfd = AT_FDCWD;
|
|
|
|
static ssize_t
|
|
do_readlink (char const *name, char *buf, size_t len)
|
|
{
|
|
return readlinkat (dfd, name, buf, len);
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
char buf[80];
|
|
int result;
|
|
|
|
/* Remove any leftovers from a previous partial run. */
|
|
ignore_value (system ("rm -rf " BASE "*"));
|
|
|
|
/* Test behaviour for invalid file descriptors. */
|
|
{
|
|
errno = 0;
|
|
ASSERT (readlinkat (-1, "foo", buf, sizeof buf) == -1);
|
|
ASSERT (errno == EBADF);
|
|
}
|
|
{
|
|
close (99);
|
|
errno = 0;
|
|
ASSERT (readlinkat (99, "foo", buf, sizeof buf) == -1);
|
|
ASSERT (errno == EBADF);
|
|
}
|
|
|
|
/* Perform same checks as counterpart functions. */
|
|
result = test_readlink (do_readlink, false);
|
|
dfd = openat (AT_FDCWD, ".", O_RDONLY);
|
|
ASSERT (0 <= dfd);
|
|
ASSERT (test_readlink (do_readlink, false) == result);
|
|
|
|
/* Now perform some cross-directory checks. Skip everything else on
|
|
mingw. */
|
|
if (HAVE_SYMLINK)
|
|
{
|
|
const char *contents = "don't matter!";
|
|
ssize_t exp = strlen (contents);
|
|
|
|
/* Create link while cwd is '.', then read it in '..'. */
|
|
ASSERT (symlinkat (contents, AT_FDCWD, BASE "link") == 0);
|
|
errno = 0;
|
|
ASSERT (symlinkat (contents, dfd, BASE "link") == -1);
|
|
ASSERT (errno == EEXIST);
|
|
ASSERT (chdir ("..") == 0);
|
|
errno = 0;
|
|
ASSERT (readlinkat (AT_FDCWD, BASE "link", buf, sizeof buf) == -1);
|
|
ASSERT (errno == ENOENT);
|
|
ASSERT (readlinkat (dfd, BASE "link", buf, sizeof buf) == exp);
|
|
ASSERT (strncmp (contents, buf, exp) == 0);
|
|
ASSERT (unlinkat (dfd, BASE "link", 0) == 0);
|
|
|
|
/* Create link while cwd is '..', then read it in '.'. */
|
|
ASSERT (symlinkat (contents, dfd, BASE "link") == 0);
|
|
ASSERT (fchdir (dfd) == 0);
|
|
errno = 0;
|
|
ASSERT (symlinkat (contents, AT_FDCWD, BASE "link") == -1);
|
|
ASSERT (errno == EEXIST);
|
|
buf[0] = '\0';
|
|
ASSERT (readlinkat (AT_FDCWD, BASE "link", buf, sizeof buf) == exp);
|
|
ASSERT (strncmp (contents, buf, exp) == 0);
|
|
buf[0] = '\0';
|
|
ASSERT (readlinkat (dfd, BASE "link", buf, sizeof buf) == exp);
|
|
ASSERT (strncmp (contents, buf, exp) == 0);
|
|
ASSERT (unlink (BASE "link") == 0);
|
|
}
|
|
|
|
ASSERT (close (dfd) == 0);
|
|
if (result == 77)
|
|
fputs ("skipping test: symlinks not supported on this file system\n",
|
|
stderr);
|
|
return (result ? result : test_exit_status);
|
|
}
|