129   int (*callback)(struct dirtree *try);
143 int cp_node(struct dirtree *try)  in cp_node()  argument
145   int fdout = -1, cfd = try->parent ? try->parent->extra : AT_FDCWD,  in cp_node()
146       tfd = dirtree_parentfd(try);  in cp_node()
148   char *catch = try->parent ? try->name : TT.destname, *err = "%s";  in cp_node()
151   if (!dirtree_notdotdot(try)) return 0;  in cp_node()
154   if (S_ISDIR(try->st.st_mode) && try->again) {  in cp_node()
155     fdout = try->extra;  in cp_node()
160     if (S_ISLNK(try->st.st_mode) && (flags & FLAG_d)) flags |= FLAG_r;  in cp_node()
164     if ((TT.top.st_dev == try->st.st_dev && TT.top.st_ino == try->st.st_ino  in cp_node()
166         || (!fstatat(cfd, catch, &cst, 0) && cst.st_dev == try->st.st_dev  in cp_node()
167          && cst.st_ino == try->st.st_ino))  in cp_node()
169       error_msg("'%s' is '%s'", catch, err = dirtree_path(try, 0));  in cp_node()
180       if (S_ISDIR(try->st.st_mode)) {  in cp_node()
181         error_msg("dir at '%s'", s = dirtree_path(try, 0));  in cp_node()
190           s = dirtree_path(try, 0));  in cp_node()
197       char *s = dirtree_path(try, 0);  in cp_node()
209       if (S_ISDIR(try->st.st_mode)) {  in cp_node()
214           catch = try->name;  in cp_node()
225         if (!mkdirat(cfd, catch, try->st.st_mode | 0200) || errno == EEXIST)  in cp_node()
226           if (-1 != (try->extra = openat(cfd, catch, O_NOFOLLOW)))  in cp_node()
227             if (!fstat(try->extra, &st2) && S_ISDIR(st2.st_mode))  in cp_node()
234         if (!linkat(tfd, try->name, cfd, catch, 0)) err = 0;  in cp_node()
244         s = dirtree_path(try, 0);  in cp_node()
245         for (or = try; or->parent; or = or->parent) dotdots++;  in cp_node()
264       } else if (!S_ISREG(try->st.st_mode)  in cp_node()
265                  && (try->parent || (flags & (FLAG_a|FLAG_r))))  in cp_node()
270         if (S_ISLNK(try->st.st_mode)  in cp_node()
271             ? (0 < (i = readlinkat(tfd, try->name, toybuf, sizeof(toybuf))) &&  in cp_node()
273             : !mknodat(cfd, catch, try->st.st_mode, try->st.st_rdev))  in cp_node()
283         fdin = openat(tfd, try->name, O_RDONLY);  in cp_node()
285           catch = try->name;  in cp_node()
288         fdout = openat(cfd, catch, O_RDWR|O_CREAT|O_TRUNC, try->st.st_mode);  in cp_node()
335         rc = fchownat(cfd, catch, try->st.st_uid, try->st.st_gid,  in cp_node()
337       else rc = fchown(fdout, try->st.st_uid, try->st.st_gid);  in cp_node()
341         perror_msg("chown '%s'", pp = dirtree_path(try, 0));  in cp_node()
348       struct timespec times[] = {try->st.st_atim, try->st.st_mtim};  in cp_node()
356       if (TT.pflags & _CP_mode) fchmod(fdout, try->st.st_mode);  in cp_node()
361       if (unlinkat(tfd, try->name, S_ISDIR(try->st.st_mode) ? AT_REMOVEDIR :0))  in cp_node()
462 static int install_node(struct dirtree *try)  in install_node()  argument
464   try->st.st_mode = (TT.i.mode)  in install_node()
465     ? string_to_mode(TT.i.mode, try->st.st_mode) : 0755;  in install_node()
466   if (TT.i.group) try->st.st_gid = TT.gid;  in install_node()
467   if (TT.i.user) try->st.st_uid = TT.uid;  in install_node()
470   cp_node(try);  in install_node()