qemu/qemu-os-posix.h
Paolo Bonzini ae0f940e6b 9pfs: improve portability to older systems
Small requirements on "new" features have percolated to virtio-9p-local.c.
In particular, the utimensat wrapper actually only supports dirfd = AT_FDCWD
and flags = AT_SYMLINK_NOFOLLOW in the fallback code.  Remove the arguments
so that virtio-9p-local.c will not use AT_* constants.

At the same time, fail local_ioc_getversion if the ioctl is not supported
by the host.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-28 11:36:27 -06:00

49 lines
1.8 KiB
C

/*
* posix specific declarations
*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_OS_POSIX_H
#define QEMU_OS_POSIX_H
void os_set_line_buffering(void);
void os_set_proc_name(const char *s);
void os_setup_signal_handling(void);
void os_daemonize(void);
void os_setup_post(void);
typedef struct timeval qemu_timeval;
#define qemu_gettimeofday(tp) gettimeofday(tp, NULL)
#ifndef CONFIG_UTIMENSAT
#ifndef UTIME_NOW
# define UTIME_NOW ((1l << 30) - 1l)
#endif
#ifndef UTIME_OMIT
# define UTIME_OMIT ((1l << 30) - 2l)
#endif
#endif
typedef struct timespec qemu_timespec;
int qemu_utimens(const char *path, const qemu_timespec *times);
#endif