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115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/* FUSE-based test for fchmod.
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Copyright (C) 2024-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <support/fuse.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <support/check.h>
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#include <support/support.h>
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#include <support/xunistd.h>
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/* Set from do_test to indicate the expected incoming mode change request. */
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static _Atomic int expected_mode;
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static void
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fuse_thread (struct support_fuse *f, void *closure)
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{
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struct fuse_in_header *inh;
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while ((inh = support_fuse_next (f)) != NULL)
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{
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if (support_fuse_handle_mountpoint (f)
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|| (inh->nodeid == 1 && support_fuse_handle_directory (f)))
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continue;
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switch (inh->opcode)
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{
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case FUSE_LOOKUP:
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{
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char *name = support_fuse_cast (LOOKUP, inh);
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TEST_COMPARE_STRING (name, "file");
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struct fuse_entry_out *out
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= support_fuse_prepare_entry (f, 2);
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out->attr.mode = S_IFREG | 0600;
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support_fuse_reply_prepared (f);
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}
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break;
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case FUSE_OPEN:
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{
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TEST_COMPARE (inh->nodeid, 2);
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struct fuse_open_in *p = support_fuse_cast (OPEN, inh);
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TEST_COMPARE (p->flags & O_ACCMODE, O_RDWR);
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struct fuse_open_out out = { 0, };
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support_fuse_reply (f, &out, sizeof (out));
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}
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break;
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case FUSE_SETATTR:
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{
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TEST_COMPARE (inh->nodeid, 2);
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struct fuse_setattr_in *p = support_fuse_cast (SETATTR, inh);
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TEST_COMPARE (p->valid , FATTR_MODE);
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TEST_COMPARE (p->mode, S_IFREG | expected_mode);
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struct fuse_attr_out *out = support_fuse_prepare_attr (f);
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out->attr.mode = S_IFREG | p->mode;
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support_fuse_reply_prepared (f);
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}
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break;
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case FUSE_FLUSH:
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support_fuse_reply_empty (f);
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break;
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default:
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support_fuse_reply_error (f, EIO);
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}
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}
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}
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/* Test all mode values with the specified extra bits. */
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static void
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test_with_bits (int fd, unsigned int extra_bits)
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{
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for (int do_mode = 0; do_mode <= 07777; ++do_mode)
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{
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expected_mode = do_mode;
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TEST_COMPARE (fchmod (fd, extra_bits | do_mode), 0);
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}
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}
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static int
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do_test (void)
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{
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support_fuse_init ();
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struct support_fuse *f = support_fuse_mount (fuse_thread, NULL);
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char *path = xasprintf ("%s/file", support_fuse_mountpoint (f));
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int fd = xopen (path, O_RDWR, 0600);
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free (path);
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test_with_bits (fd, 0);
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/* POSIX requires that the extra bits are ignored. */
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test_with_bits (fd, S_IFREG);
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test_with_bits (fd, S_IFDIR);
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test_with_bits (fd, ~07777);
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xclose (fd);
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support_fuse_unmount (f);
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return 0;
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}
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#include <support/test-driver.c>
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