diff options
Diffstat (limited to 'daemon/utimens.c')
-rw-r--r-- | daemon/utimens.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/daemon/utimens.c b/daemon/utimens.c new file mode 100644 index 00000000..2d0e3bfc --- /dev/null +++ b/daemon/utimens.c @@ -0,0 +1,81 @@ +/* libguestfs - the guestfsd daemon + * Copyright (C) 2009 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/stat.h> + +#include "../src/guestfs_protocol.h" +#include "daemon.h" +#include "actions.h" + +int +do_utimens (const char *path, + int64_t atsecs, int64_t atnsecs, + int64_t mtsecs, int64_t mtnsecs) +{ +#ifndef HAVE_FUTIMENS + reply_with_error ("utimens: not supported in this appliance"); + return -1; +#else + int fd; + int r; + + CHROOT_IN; + fd = open (path, O_WRONLY | O_NOCTTY); + CHROOT_OUT; + + if (fd == -1) { + reply_with_perror ("open: %s", path); + return -1; + } + + if (atnsecs == -1) + atnsecs = UTIME_NOW; + if (atnsecs == -2) + atnsecs = UTIME_OMIT; + if (mtnsecs == -1) + mtnsecs = UTIME_NOW; + if (mtnsecs == -2) + mtnsecs = UTIME_OMIT; + + struct timespec times[2]; + times[0].tv_sec = atsecs; + times[0].tv_nsec = atnsecs; + times[1].tv_sec = mtsecs; + times[1].tv_nsec = mtnsecs; + + r = futimens (fd, times); + if (r == -1) { + reply_with_perror ("futimens: %s", path); + close (fd); + return -1; + } + + if (close (fd) == -1) { + reply_with_perror ("close: %s", path); + return -1; + } + + return 0; +#endif /* HAVE_FUTIMENS */ +} |