]> git.cameronkatri.com Git - pw-darwin.git/blobdiff - pw/cpdir.c
IFC @253398
[pw-darwin.git] / pw / cpdir.c
index c203c8919058f71925ad9d523ea669a02d5845d5..0fd671b049d5949243d56a095b66edc912afe0d3 100644 (file)
@@ -1,26 +1,20 @@
 /*-
- * Copyright (c) 1996 by David L. Nugent <davidn@blaze.net.au>.
- * All rights reserved.
+ * Copyright (C) 1996
+ *     David L. Nugent.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer as
- *    the first lines of this file unmodified.
+ *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *     This product includes software developed by David L. Nugent.
- * 4. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE DAVID L. NUGENT ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT BE LIABLE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- *     $Id$
  */
 
+#ifndef lint
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif /* not lint */
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#include <fcntl.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
 #include <sys/param.h>
-#include <errno.h>
+#include <dirent.h>
 
+#include "pw.h"
 #include "pwupd.h"
 
 void
 copymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid)
 {
-       int             rc = 0;
        char            src[MAXPATHLEN];
        char            dst[MAXPATHLEN];
+       char            lnk[MAXPATHLEN];
+       int             len;
 
        if (mkdir(dir, mode) != 0 && errno != EEXIST) {
-               sprintf(src, "mkdir(%s)", dir);
-               perror(src);
+               warn("mkdir(%s)", dir);
        } else {
                int             infd, outfd;
                struct stat     st;
@@ -64,9 +63,7 @@ copymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid
 
                ++counter;
                chown(dir, uid, gid);
-               if (skel == NULL || *skel == '\0')
-                       rc = 1;
-               else {
+               if (skel != NULL && *skel != '\0') {
                        DIR            *d = opendir(skel);
 
                        if (d != NULL) {
@@ -75,18 +72,27 @@ copymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid
                                while ((e = readdir(d)) != NULL) {
                                        char           *p = e->d_name;
 
-                                       sprintf(src, "%s/%s", skel, p);
-                                       if (stat(src, &st) == 0) {
+                                       if (snprintf(src, sizeof(src), "%s/%s", skel, p) >= (int)sizeof(src))
+                                               warn("warning: pathname too long '%s/%s' (skel not copied)", skel, p);
+                                       else if (lstat(src, &st) == 0) {
                                                if (strncmp(p, "dot.", 4) == 0) /* Conversion */
                                                        p += 3;
-                                               sprintf(dst, "%s/%s", dir, p);
-                                               if (S_ISDIR(st.st_mode)) {      /* Recurse for this */
+                                               if (snprintf(dst, sizeof(dst), "%s/%s", dir, p) >= (int)sizeof(dst))
+                                                       warn("warning: path too long '%s/%s' (skel file skipped)", dir, p);
+                                               else {
+                                                   if (S_ISDIR(st.st_mode)) {  /* Recurse for this */
                                                        if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0)
-                                                               copymkdir(dst, src, (st.st_mode & 0777), uid, gid);
+                                                               copymkdir(dst, src, st.st_mode & _DEF_DIRMODE, uid, gid);
+                                                               chflags(dst, st.st_flags);      /* propagate flags */
+                                                   } else if (S_ISLNK(st.st_mode) && (len = readlink(src, lnk, sizeof(lnk) - 1)) != -1) {
+                                                       lnk[len] = '\0';
+                                                       symlink(lnk, dst);
+                                                       lchown(dst, uid, gid);
                                                        /*
-                                                        * Note: don't propogate 'special' attributes
+                                                        * Note: don't propagate special attributes
+                                                        * but do propagate file flags
                                                         */
-                                               } else if (S_ISREG(st.st_mode) && (outfd = open(dst, O_RDWR | O_CREAT | O_EXCL, st.st_mode)) != -1) {
+                                                   } else if (S_ISREG(st.st_mode) && (outfd = open(dst, O_RDWR | O_CREAT | O_EXCL, st.st_mode)) != -1) {
                                                        if ((infd = open(src, O_RDONLY)) == -1) {
                                                                close(outfd);
                                                                remove(dst);
@@ -101,9 +107,15 @@ copymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid
                                                                while ((b = read(infd, copybuf, 4096)) > 0)
                                                                        write(outfd, copybuf, b);
                                                                close(infd);
+                                                               /*
+                                                                * Propagate special filesystem flags
+                                                                */
+                                                               fchown(outfd, uid, gid);
+                                                               fchflags(outfd, st.st_flags);
                                                                close(outfd);
                                                                chown(dst, uid, gid);
                                                        }
+                                                   }
                                                }
                                        }
                                }