3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 #include <sys/types.h>
23 doitUnify(char const *src, struct stat const *src_stat,
24 char const *dst, struct stat const UNUSED *dst_stat)
26 size_t l = strlen(dst);
27 char tmpfile[l + sizeof(";XXXXXX")];
31 // at first, set the ILI flags on 'src'
32 if (vc_set_iattr_compat(src, src_stat->st_dev, src_stat->st_ino,
33 0, VC_IATTR_IUNLINK, VC_IATTR_IUNLINK,
34 &src_stat->st_mode)==-1)
37 // now, create a temporary filename
38 memcpy(tmpfile, dst, l);
39 memcpy(tmpfile+l, ";XXXXXX", 8);
40 fd = mkstemp(tmpfile);
48 // and rename the old file to this name
49 if (rename(dst, tmpfile)==-1) {
54 // now, link the src-file to dst
55 if (link(src, dst)==-1) {
59 if (rename(tmpfile, dst)==-1) {
60 perror("FATAL error in rename()");
75 doitDeUnify(char const UNUSED *src, struct stat const UNUSED *src_stat,
76 char const *dst, struct stat const UNUSED *dst_stat)
78 size_t l = strlen(dst);
79 char tmpfile[l + sizeof(";XXXXXX")];
84 fd_src = open(dst, O_RDONLY);
90 if (fstat(fd_src, &st)==-1) {
96 memcpy(tmpfile, dst, l);
97 memcpy(tmpfile+l, ";XXXXXX", 8);
98 fd_tmp = mkstemp(tmpfile);
106 if (fchown(fd_tmp, st.st_uid, st.st_gid)==-1 ||
107 fchmod(fd_tmp, st.st_mode)==-1) {
108 perror("fchown()/fchmod()");
116 ssize_t len = read(fd_src, buf, sizeof buf);
123 if (!WwriteAll(fd_tmp, buf, len)) goto err;
126 if (close(fd_src)==-1) {
130 if (close(fd_tmp)==-1) {
135 utm.actime = st.st_atime;
136 utm.modtime = st.st_mtime;
139 if (utime(tmpfile, &utm)==-1) {
144 if (unlink(dst)==-1) {
150 if (rename(tmpfile, dst)==-1) {
151 perror("FATAL error in rename()");
161 if (tmpfile[0]) unlink(tmpfile);