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/* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#if MAJOR_IN_MKDEV
#include <sys/mkdev.h>
#elif MAJOR_IN_SYSMACROS
#include <sys/sysmacros.h>
/* else it's in sys/types.h, included above */
#endif
#include "guestfs_protocol.h"
#include "daemon.h"
#include "actions.h"
#include "optgroups.h"
#ifdef HAVE_MKNOD
int
optgroup_mknod_available (void)
{
return 1;
}
#define CHECK_MODE \
do { \
if ((mode & ~07777) != 0) { \
reply_with_error ("%o: mode must specify only file permission bits", \
(unsigned int) mode); \
return -1; \
} \
} while (0)
int
do_mknod (int mode, int devmajor, int devminor, const char *path)
{
int r;
if (mode < 0) {
reply_with_error ("%s: mode is negative", path);
return -1;
}
CHROOT_IN;
r = mknod (path, mode, makedev (devmajor, devminor));
CHROOT_OUT;
if (r == -1) {
reply_with_perror ("%s", path);
return -1;
}
return 0;
}
int
do_mkfifo (int mode, const char *path)
{
CHECK_MODE;
return do_mknod (mode | S_IFIFO, 0, 0, path);
}
int
do_mknod_b (int mode, int devmajor, int devminor, const char *path)
{
CHECK_MODE;
return do_mknod (mode | S_IFBLK, devmajor, devminor, path);
}
int
do_mknod_c (int mode, int devmajor, int devminor, const char *path)
{
CHECK_MODE;
return do_mknod (mode | S_IFCHR, devmajor, devminor, path);
}
#else
OPTGROUP_MKNOD_NOT_AVAILABLE
#endif
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