2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 * David L. Nugent. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 static const char rcsid[] =
44 copymkdir(int rootfd, char const * dir, int skelfd, mode_t mode, uid_t uid,
47 char *p, lnk[MAXPATHLEN], copybuf[4096];
48 int len, homefd, srcfd, destfd;
57 if (mkdirat(rootfd, dir, mode) != 0 && errno != EEXIST) {
58 warn("mkdir(%s)", dir);
61 fchownat(rootfd, dir, uid, gid, AT_SYMLINK_NOFOLLOW);
63 chflagsat(rootfd, dir, flags, AT_SYMLINK_NOFOLLOW);
68 homefd = openat(rootfd, dir, O_DIRECTORY);
69 if ((d = fdopendir(skelfd)) == NULL) {
75 while ((e = readdir(d)) != NULL) {
76 if (strcmp(e->d_name, ".") == 0 || strcmp(e->d_name, "..") == 0)
80 if (fstatat(skelfd, p, &st, AT_SYMLINK_NOFOLLOW) == -1)
83 if (strncmp(p, "dot.", 4) == 0) /* Conversion */
86 if (S_ISDIR(st.st_mode)) {
87 copymkdir(homefd, p, openat(skelfd, e->d_name, O_DIRECTORY),
88 st.st_mode & _DEF_DIRMODE, uid, gid, st.st_flags);
92 if (S_ISLNK(st.st_mode) &&
93 (len = readlinkat(skelfd, e->d_name, lnk, sizeof(lnk) -1))
96 symlinkat(lnk, homefd, p);
97 fchownat(homefd, p, uid, gid, AT_SYMLINK_NOFOLLOW);
101 if (!S_ISREG(st.st_mode))
104 if ((srcfd = openat(skelfd, e->d_name, O_RDONLY)) == -1)
106 destfd = openat(homefd, p, O_RDWR | O_CREAT | O_EXCL,
113 while ((sz = read(srcfd, copybuf, sizeof(copybuf))) > 0)
114 write(destfd, copybuf, sz);
118 * Propagate special filesystem flags
120 fchown(destfd, uid, gid);
121 fchflags(destfd, st.st_flags);