Files
libguestfs/tests/c-api/test-last-errno.c
Richard W.M. Jones 75abec1f70 include: Move lib/guestfs.h to include/guestfs.h
This brings libguestfs into line with other projects which have a
separate include/ directory for the public header.

It's also the case that <guestfs.h> has never particularly belonged in
the lib/ subdirectory.  Some tools add -Ilib/ but they only need
<guestfs.h> and not any other headers from that directory, and
separating out the public header allows us to clean those up.  This is
certainly the case for examples, and some language bindings and some
tests.

In future I'm hopeful we can use this as the basis to tease out other
dependencies, as a prelude to separating them out from the repo.
2020-09-21 18:38:28 +01:00

108 lines
2.9 KiB
C

/* libguestfs
* Copyright (C) 2010 Red Hat 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* Test that we can get correct errnos all the way back from the
* appliance, translated to the local operating system.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <error.h>
#include "guestfs.h"
int
main (int argc, char *argv[])
{
guestfs_h *g;
int r, err;
struct guestfs_statns *stat;
g = guestfs_create ();
if (g == NULL)
error (EXIT_FAILURE, errno, "guestfs_create");
if (guestfs_add_drive_scratch (g, 524288000, -1) == -1)
exit (EXIT_FAILURE);
if (guestfs_launch (g) == -1)
exit (EXIT_FAILURE);
if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
exit (EXIT_FAILURE);
if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
exit (EXIT_FAILURE);
/* Mount read-only, and check that errno == EROFS is passed back when
* we create a file.
*/
if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
exit (EXIT_FAILURE);
r = guestfs_touch (g, "/test");
if (r != -1)
error (EXIT_FAILURE, 0,
"guestfs_touch: expected error for read-only filesystem");
err = guestfs_last_errno (g);
if (err != EROFS)
error (EXIT_FAILURE, 0,
"guestfs_touch: expected errno == EROFS, but got %d", err);
if (guestfs_umount (g, "/") == -1)
exit (EXIT_FAILURE);
/* Mount it writable and test some other errors. */
if (guestfs_mount (g, "/dev/sda1", "/") == -1)
exit (EXIT_FAILURE);
stat = guestfs_lstatns (g, "/nosuchfile");
if (stat != NULL)
error (EXIT_FAILURE, 0,
"guestfs_lstat: expected error for missing file");
err = guestfs_last_errno (g);
if (err != ENOENT)
error (EXIT_FAILURE, 0,
"guestfs_lstat: expected errno == ENOENT, but got %d", err);
if (guestfs_touch (g, "/test") == -1)
exit (EXIT_FAILURE);
r = guestfs_mkdir (g, "/test");
if (r != -1)
error (EXIT_FAILURE, 0,
"guestfs_mkdir: expected error for file which exists");
err = guestfs_last_errno (g);
if (err != EEXIST)
error (EXIT_FAILURE, 0,
"guestfs_mkdir: expected errno == EEXIST, but got %d", err);
guestfs_close (g);
exit (EXIT_SUCCESS);
}