mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-22 07:03:38 +00:00
7a26804569
Note this requires either the following fix in autoconf: http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=e17a30e98 OR gnulib sys_types module plus gnulib commit a512e041120e9012e69afa2f5c3adc196ec4999a (any gnulib more recent than Sep 2016) which corrects the AC_HEADER_MAJOR macro in a similar way.
108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2009 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#if MAJOR_IN_MKDEV
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#include <sys/mkdev.h>
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#elif MAJOR_IN_SYSMACROS
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#include <sys/sysmacros.h>
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/* else it's in sys/types.h, included above */
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#endif
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#include "guestfs_protocol.h"
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#include "daemon.h"
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#include "actions.h"
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#include "optgroups.h"
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#ifdef HAVE_MKNOD
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int
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optgroup_mknod_available (void)
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{
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return 1;
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}
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#define CHECK_MODE \
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do { \
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if ((mode & ~07777) != 0) { \
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reply_with_error ("%o: mode must specify only file permission bits", \
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(unsigned int) mode); \
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return -1; \
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} \
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} while (0)
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int
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do_mknod (int mode, int devmajor, int devminor, const char *path)
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{
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int r;
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if (mode < 0) {
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reply_with_error ("%s: mode is negative", path);
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return -1;
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}
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CHROOT_IN;
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r = mknod (path, mode, makedev (devmajor, devminor));
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CHROOT_OUT;
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if (r == -1) {
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reply_with_perror ("%s", path);
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return -1;
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}
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return 0;
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}
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int
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do_mkfifo (int mode, const char *path)
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{
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CHECK_MODE;
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return do_mknod (mode | S_IFIFO, 0, 0, path);
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}
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int
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do_mknod_b (int mode, int devmajor, int devminor, const char *path)
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{
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CHECK_MODE;
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return do_mknod (mode | S_IFBLK, devmajor, devminor, path);
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}
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int
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do_mknod_c (int mode, int devmajor, int devminor, const char *path)
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{
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CHECK_MODE;
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return do_mknod (mode | S_IFCHR, devmajor, devminor, path);
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}
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#else
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OPTGROUP_MKNOD_NOT_AVAILABLE
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#endif
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