- patch from Denis Vlasenko to add and use bb_xchdir()

archival/dpkg_deb.c

@@ -1,18 +1,8 @@
+/* vi: set sw=4 ts=4: */
 /*
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Library General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * dpkg-deb packs, unpacks and provides information about Debian archives.
  *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 #include <fcntl.h>
 #include <stdlib.h>
@@ -100,7 +90,7 @@ int dpkg_deb_main(int argc, char **argv)
 	}
 	if (extract_dir) {
 		mkdir(extract_dir, 0777);
-		chdir(extract_dir);
+		chdir(extract_dir); /* error check? */
 	}
 	unpack_ar_archive(ar_archive);
 

archival/tar.c

@@ -19,9 +19,8 @@
  *
  * Based in part on the tar implementation from busybox-0.28
  *  Copyright (C) 1995 Bruce Perens
- *  This is free software under the GNU General Public License.
  *
- * Licensed under GPL v2 (or later), see file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 #include <fcntl.h>
@@ -834,8 +833,8 @@ int tar_main(int argc, char **argv)
 		}
 	}
 
-	if ((base_dir) && (chdir(base_dir)))
-		bb_perror_msg_and_die("Couldnt chdir to %s", base_dir);
+	if (base_dir)
+		bb_xchdir(base_dir);
 
 	/* create an archive */
 	if (ENABLE_FEATURE_TAR_CREATE && (opt & CTX_CREATE)) {

archival/unzip.c

@@ -236,9 +236,8 @@ int unzip_main(int argc, char **argv)
 	}
 
 	/* Change dir if necessary */
-	if (base_dir && chdir(base_dir)) {
-		bb_perror_msg_and_die("Cannot chdir");
-	}
+	if (base_dir)
+		bb_xchdir(base_dir);
 
 	if (verbosity != v_silent)
 		printf("Archive:  %s\n", src_fn);