1/* 2 * FUSE: Filesystem in Userspace 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE 24 */ 25 26/* 27 * Creates files on the underlying file system in response to a FUSE_MKNOD 28 * operation 29 */ 30static int mknod_wrapper(int dirfd, const char *path, const char *link, 31 int mode, dev_t rdev) 32{ 33 int res; 34 35 if (S_ISREG(mode)) { 36 res = openat(dirfd, path, O_CREAT | O_EXCL | O_WRONLY, mode); 37 if (res >= 0) { 38 res = close(res); 39 } 40 } else if (S_ISDIR(mode)) { 41 res = mkdirat(dirfd, path, mode); 42 } else if (S_ISLNK(mode) && link != NULL) { 43 res = symlinkat(link, dirfd, path); 44 } else if (S_ISFIFO(mode)) { 45 res = mkfifoat(dirfd, path, mode); 46 } else { 47 res = mknodat(dirfd, path, mode, rdev); 48 } 49 50 return res; 51} 52