busybox: bump version to 1.28.2

Drop 0003-tar-unzip-postpone-creation-of-symlinks-with-suspici.patch now upstream.

>From the release notes:

Bug fix release.  1.28.2 has fixes for tcpsvd (fixed fallout from
opt_complementary removal), udhcpd (do not ignore SIGTERM), tar and unzip
(reverted to previous, more permissive symlink handling), ssl_client (fixed
option parsing).

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/busybox/0003-tar-unzip-postpone-creation-of-symlinks-with-suspici.patch

@@ -1,358 +0,0 @@
-From a84db18fc71d09e801df0ebca048d82e90b32c6a Mon Sep 17 00:00:00 2001
-From: Denys Vlasenko <vda.linux@googlemail.com>
-Date: Tue, 20 Feb 2018 15:57:45 +0100
-Subject: [PATCH] tar,unzip: postpone creation of symlinks with "suspicious"
- targets
-
-This mostly reverts commit bc9bbeb2b81001e8731cd2ae501c8fccc8d87cc7
-"libarchive: do not extract unsafe symlinks unless $EXTRACT_UNSAFE_SYMLINKS=1"
-
-Users report that it is somewhat too restrictive. See
-https://bugs.busybox.net/show_bug.cgi?id=8411
-
-In particular, this interferes with unpacking of busybox-based
-filesystems with links like "sbin/applet" -> "../bin/busybox".
-
-The change is made smaller by deleting ARCHIVE_EXTRACT_QUIET flag -
-it is unused since 2010, and removing conditionals on it
-allows commonalizing some error message codes.
-
-function                                             old     new   delta
-create_or_remember_symlink                             -      94     +94
-create_symlinks_from_list                              -      64     +64
-tar_main                                            1002    1006      +4
-unzip_main                                          2732    2724      -8
-data_extract_all                                     984     891     -93
-unsafe_symlink_target                                147       -    -147
-------------------------------------------------------------------------------
-(add/remove: 2/1 grow/shrink: 1/2 up/down: 162/-248)          Total: -86 bytes
-
-Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
----
- archival/libarchive/data_extract_all.c      | 28 ++++----------
- archival/libarchive/unsafe_symlink_target.c | 59 +++++++++++++----------------
- archival/tar.c                              |  2 +
- archival/unzip.c                            | 25 ++++++------
- include/bb_archive.h                        | 23 ++++++-----
- testsuite/tar.tests                         | 10 ++---
- 6 files changed, 68 insertions(+), 79 deletions(-)
-
-diff --git a/archival/libarchive/data_extract_all.c b/archival/libarchive/data_extract_all.c
-index d3a6df5e8..8fa69ffaf 100644
---- a/archival/libarchive/data_extract_all.c
-+++ b/archival/libarchive/data_extract_all.c
-@@ -107,9 +107,7 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
- 			}
- 		}
- 		else if (existing_sb.st_mtime >= file_header->mtime) {
--			if (!(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
--			 && !S_ISDIR(file_header->mode)
--			) {
-+			if (!S_ISDIR(file_header->mode)) {
- 				bb_error_msg("%s not created: newer or "
- 					"same age file exists", dst_name);
- 			}
-@@ -125,7 +123,7 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
- 	/* Handle hard links separately */
- 	if (hard_link) {
- 		res = link(hard_link, dst_name);
--		if (res != 0 && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)) {
-+		if (res != 0) {
- 			/* shared message */
- 			bb_perror_msg("can't create %slink '%s' to '%s'",
- 				"hard",	dst_name, hard_link
-@@ -165,10 +163,9 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
- 	}
- 	case S_IFDIR:
- 		res = mkdir(dst_name, file_header->mode);
--		if ((res == -1)
-+		if ((res != 0)
- 		 && (errno != EISDIR) /* btw, Linux doesn't return this */
- 		 && (errno != EEXIST)
--		 && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
- 		) {
- 			bb_perror_msg("can't make dir %s", dst_name);
- 		}
-@@ -198,27 +195,16 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
- 		 *
- 		 * Untarring bug.tar would otherwise place evil.py in '/tmp'.
- 		 */
--		if (!unsafe_symlink_target(file_header->link_target)) {
--			res = symlink(file_header->link_target, dst_name);
--			if (res != 0
--			 && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
--			) {
--				/* shared message */
--				bb_perror_msg("can't create %slink '%s' to '%s'",
--					"sym",
--					dst_name, file_header->link_target
--				);
--			}
--		}
-+		create_or_remember_symlink(&archive_handle->symlink_placeholders,
-+				file_header->link_target,
-+				dst_name);
- 		break;
- 	case S_IFSOCK:
- 	case S_IFBLK:
- 	case S_IFCHR:
- 	case S_IFIFO:
- 		res = mknod(dst_name, file_header->mode, file_header->device);
--		if ((res == -1)
--		 && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
--		) {
-+		if (res != 0) {
- 			bb_perror_msg("can't create node %s", dst_name);
- 		}
- 		break;
-diff --git a/archival/libarchive/unsafe_symlink_target.c b/archival/libarchive/unsafe_symlink_target.c
-index 441ba8b24..8dcafeaa1 100644
---- a/archival/libarchive/unsafe_symlink_target.c
-+++ b/archival/libarchive/unsafe_symlink_target.c
-@@ -5,44 +5,37 @@
- #include "libbb.h"
- #include "bb_archive.h"
- 
--int FAST_FUNC unsafe_symlink_target(const char *target)
-+void FAST_FUNC create_or_remember_symlink(llist_t **symlink_placeholders,
-+		const char *target,
-+		const char *linkname)
- {
--	const char *dot;
--
--	if (target[0] == '/') {
--		const char *var;
-- unsafe:
--		var = getenv("EXTRACT_UNSAFE_SYMLINKS");
--		if (var) {
--			if (LONE_CHAR(var, '1'))
--				return 0; /* pretend it's safe */
--			return 1; /* "UNSAFE!" */
--		}
--		bb_error_msg("skipping unsafe symlink to '%s' in archive,"
--			" set %s=1 to extract",
--			target,
--			"EXTRACT_UNSAFE_SYMLINKS"
-+	if (target[0] == '/' || strstr(target, "..")) {
-+		llist_add_to(symlink_placeholders,
-+			xasprintf("%s%c%s", linkname, '\0', target)
-+		);
-+		return;
-+	}
-+	if (symlink(target, linkname) != 0) {
-+		/* shared message */
-+		bb_perror_msg_and_die("can't create %slink '%s' to '%s'",
-+			"sym", linkname, target
- 		);
--		/* Prevent further messages */
--		setenv("EXTRACT_UNSAFE_SYMLINKS", "0", 0);
--		return 1; /* "UNSAFE!" */
- 	}
-+}
- 
--	dot = target;
--	for (;;) {
--		dot = strchr(dot, '.');
--		if (!dot)
--			return 0; /* safe target */
-+void FAST_FUNC create_symlinks_from_list(llist_t *list)
-+{
-+	while (list) {
-+		char *target;
- 
--		/* Is it a path component starting with ".."? */
--		if ((dot[1] == '.')
--		 && (dot == target || dot[-1] == '/')
--		    /* Is it exactly ".."? */
--		 && (dot[2] == '/' || dot[2] == '\0')
--		) {
--			goto unsafe;
-+		target = list->data + strlen(list->data) + 1;
-+		if (symlink(target, list->data)) {
-+			/* shared message */
-+			bb_error_msg_and_die("can't create %slink '%s' to '%s'",
-+				"sym",
-+				list->data, target
-+			);
- 		}
--		/* NB: it can even be trailing ".", should only add 1 */
--		dot += 1;
-+		list = list->link;
- 	}
- }
-diff --git a/archival/tar.c b/archival/tar.c
-index 9ed3821d5..415ebde0d 100644
---- a/archival/tar.c
-+++ b/archival/tar.c
-@@ -1244,6 +1244,8 @@ int tar_main(int argc UNUSED_PARAM, char **argv)
- 	while (get_header_tar(tar_handle) == EXIT_SUCCESS)
- 		bb_got_signal = EXIT_SUCCESS; /* saw at least one header, good */
- 
-+	create_symlinks_from_list(tar_handle->symlink_placeholders);
-+
- 	/* Check that every file that should have been extracted was */
- 	while (tar_handle->accept) {
- 		if (!find_list_entry(tar_handle->reject, tar_handle->accept->data)
-diff --git a/archival/unzip.c b/archival/unzip.c
-index da4b2a544..0d00d8dc9 100644
---- a/archival/unzip.c
-+++ b/archival/unzip.c
-@@ -345,7 +345,9 @@ static void unzip_create_leading_dirs(const char *fn)
- }
- 
- #if ENABLE_FEATURE_UNZIP_CDF
--static void unzip_extract_symlink(zip_header_t *zip, const char *dst_fn)
-+static void unzip_extract_symlink(llist_t **symlink_placeholders,
-+		zip_header_t *zip,
-+		const char *dst_fn)
- {
- 	char *target;
- 
-@@ -370,15 +372,9 @@ static void unzip_extract_symlink(zip_header_t *zip, const char *dst_fn)
- 		target[xstate.mem_output_size] = '\0';
- #endif
- 	}
--	if (!unsafe_symlink_target(target)) {
--//TODO: libbb candidate
--		if (symlink(target, dst_fn)) {
--			/* shared message */
--			bb_perror_msg_and_die("can't create %slink '%s' to '%s'",
--				"sym", dst_fn, target
--			);
--		}
--	}
-+	create_or_remember_symlink(symlink_placeholders,
-+			target,
-+			dst_fn);
- 	free(target);
- }
- #endif
-@@ -490,6 +486,9 @@ int unzip_main(int argc, char **argv)
- 	llist_t *zaccept = NULL;
- 	llist_t *zreject = NULL;
- 	char *base_dir = NULL;
-+#if ENABLE_FEATURE_UNZIP_CDF
-+	llist_t *symlink_placeholders = NULL;
-+#endif
- 	int i;
- 	char key_buf[80]; /* must match size used by my_fgets80 */
- 
-@@ -954,7 +953,7 @@ int unzip_main(int argc, char **argv)
- #if ENABLE_FEATURE_UNZIP_CDF
- 			if (S_ISLNK(file_mode)) {
- 				if (dst_fd != STDOUT_FILENO) /* not -p? */
--					unzip_extract_symlink(&zip, dst_fn);
-+					unzip_extract_symlink(&symlink_placeholders, &zip, dst_fn);
- 			} else
- #endif
- 			{
-@@ -990,6 +989,10 @@ int unzip_main(int argc, char **argv)
- 		total_entries++;
- 	}
- 
-+#if ENABLE_FEATURE_UNZIP_CDF
-+	create_symlinks_from_list(symlink_placeholders);
-+#endif
-+
- 	if ((opts & OPT_l) && quiet <= 1) {
- 		if (!verbose) {
- 			//	"  Length      Date    Time    Name\n"
-diff --git a/include/bb_archive.h b/include/bb_archive.h
-index 8ed20d70e..a5c61e95b 100644
---- a/include/bb_archive.h
-+++ b/include/bb_archive.h
-@@ -64,6 +64,9 @@ typedef struct archive_handle_t {
- 	/* Currently processed file's header */
- 	file_header_t *file_header;
- 
-+	/* List of symlink placeholders */
-+	llist_t *symlink_placeholders;
-+
- 	/* Process the header component, e.g. tar -t */
- 	void FAST_FUNC (*action_header)(const file_header_t *);
- 
-@@ -119,15 +122,14 @@ typedef struct archive_handle_t {
- #define ARCHIVE_RESTORE_DATE        (1 << 0)
- #define ARCHIVE_CREATE_LEADING_DIRS (1 << 1)
- #define ARCHIVE_UNLINK_OLD          (1 << 2)
--#define ARCHIVE_EXTRACT_QUIET       (1 << 3)
--#define ARCHIVE_EXTRACT_NEWER       (1 << 4)
--#define ARCHIVE_DONT_RESTORE_OWNER  (1 << 5)
--#define ARCHIVE_DONT_RESTORE_PERM   (1 << 6)
--#define ARCHIVE_NUMERIC_OWNER       (1 << 7)
--#define ARCHIVE_O_TRUNC             (1 << 8)
--#define ARCHIVE_REMEMBER_NAMES      (1 << 9)
-+#define ARCHIVE_EXTRACT_NEWER       (1 << 3)
-+#define ARCHIVE_DONT_RESTORE_OWNER  (1 << 4)
-+#define ARCHIVE_DONT_RESTORE_PERM   (1 << 5)
-+#define ARCHIVE_NUMERIC_OWNER       (1 << 6)
-+#define ARCHIVE_O_TRUNC             (1 << 7)
-+#define ARCHIVE_REMEMBER_NAMES      (1 << 8)
- #if ENABLE_RPM
--#define ARCHIVE_REPLACE_VIA_RENAME  (1 << 10)
-+#define ARCHIVE_REPLACE_VIA_RENAME  (1 << 9)
- #endif
- 
- 
-@@ -197,7 +199,10 @@ void seek_by_jump(int fd, off_t amount) FAST_FUNC;
- void seek_by_read(int fd, off_t amount) FAST_FUNC;
- 
- const char *strip_unsafe_prefix(const char *str) FAST_FUNC;
--int unsafe_symlink_target(const char *target) FAST_FUNC;
-+void create_or_remember_symlink(llist_t **symlink_placeholders,
-+		const char *target,
-+		const char *linkname) FAST_FUNC;
-+void create_symlinks_from_list(llist_t *list) FAST_FUNC;
- 
- void data_align(archive_handle_t *archive_handle, unsigned boundary) FAST_FUNC;
- const llist_t *find_list_entry(const llist_t *list, const char *filename) FAST_FUNC;
-diff --git a/testsuite/tar.tests b/testsuite/tar.tests
-index b7cd74ca5..1675b07b1 100755
---- a/testsuite/tar.tests
-+++ b/testsuite/tar.tests
-@@ -279,7 +279,7 @@ optional UUDECODE FEATURE_TAR_AUTODETECT FEATURE_SEAMLESS_BZ2
- testing "tar does not extract into symlinks" "\
- >>/tmp/passwd && uudecode -o input && tar xf input 2>&1 && rm passwd; cat /tmp/passwd; echo \$?
- " "\
--tar: skipping unsafe symlink to '/tmp/passwd' in archive, set EXTRACT_UNSAFE_SYMLINKS=1 to extract
-+tar: can't create symlink 'passwd' to '/tmp/passwd'
- 0
- " \
- "" "\
-@@ -299,7 +299,7 @@ optional UUDECODE FEATURE_TAR_AUTODETECT FEATURE_SEAMLESS_BZ2
- testing "tar -k does not extract into symlinks" "\
- >>/tmp/passwd && uudecode -o input && tar xf input -k 2>&1 && rm passwd; cat /tmp/passwd; echo \$?
- " "\
--tar: skipping unsafe symlink to '/tmp/passwd' in archive, set EXTRACT_UNSAFE_SYMLINKS=1 to extract
-+tar: can't create symlink 'passwd' to '/tmp/passwd'
- 0
- " \
- "" "\
-@@ -324,11 +324,11 @@ rm -rf etc usr
- ' "\
- etc/ssl/certs/3b2716e5.0
- etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem
--tar: skipping unsafe symlink to '/usr/share/ca-certificates/mozilla/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.crt' in archive, set EXTRACT_UNSAFE_SYMLINKS=1 to extract
- etc/ssl/certs/f80cc7f6.0
- usr/share/ca-certificates/mozilla/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.crt
- 0
- etc/ssl/certs/3b2716e5.0 -> EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem
-+etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem -> /usr/share/ca-certificates/mozilla/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.crt
- etc/ssl/certs/f80cc7f6.0 -> EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem
- " \
- "" ""
-@@ -346,9 +346,9 @@ ls symlink/bb_test_evilfile
- ' "\
- anything.txt
- symlink
--tar: skipping unsafe symlink to '/tmp' in archive, set EXTRACT_UNSAFE_SYMLINKS=1 to extract
- symlink/bb_test_evilfile
--0
-+tar: can't create symlink 'symlink' to '/tmp'
-+1
- ls: /tmp/bb_test_evilfile: No such file or directory
- ls: bb_test_evilfile: No such file or directory
- symlink/bb_test_evilfile
--- 
-2.16.2
-

package/busybox/busybox.hash

@@ -1,6 +1,6 @@
-# From https://busybox.net/downloads/busybox-1.28.1.tar.bz2.sign
-md5 928919a21e34d5c5507d872a4fb7b9f4  busybox-1.28.1.tar.bz2
-sha1 932e2a77c3ddaa7f0915ed6fe9232041d261f86b  busybox-1.28.1.tar.bz2
+# From https://busybox.net/downloads/busybox-1.28.2.tar.bz2.sign
+md5 5db059384469827ab19dac69d3fcd092  busybox-1.28.2.tar.bz2
+sha1 5ddba42aa14b875688727f0a3a9973e42fc51c23  busybox-1.28.2.tar.bz2
 # Locally calculated
-sha256 98fe1d3c311156c597cd5cfa7673bb377dc552b6fa20b5d3834579da3b13652e  busybox-1.28.1.tar.bz2
+sha256 b64a94a60877c96838ee60e75765576ecc8756bf3636485117637604acb84b0d  busybox-1.28.2.tar.bz2
 sha256	bbfc9843646d483c334664f651c208b9839626891d8f17604db2146962f43548	LICENSE

package/busybox/busybox.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-BUSYBOX_VERSION = 1.28.1
+BUSYBOX_VERSION = 1.28.2
 BUSYBOX_SITE = http://www.busybox.net/downloads
 BUSYBOX_SOURCE = busybox-$(BUSYBOX_VERSION).tar.bz2
 BUSYBOX_LICENSE = GPL-2.0