diff options
Diffstat (limited to 'meta/recipes-extended/libarchive/files/0002-Fix-extracting-hardlinks-over-symlinks.patch')
| -rw-r--r-- | meta/recipes-extended/libarchive/files/0002-Fix-extracting-hardlinks-over-symlinks.patch | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/meta/recipes-extended/libarchive/files/0002-Fix-extracting-hardlinks-over-symlinks.patch b/meta/recipes-extended/libarchive/files/0002-Fix-extracting-hardlinks-over-symlinks.patch new file mode 100644 index 00000000000..37418632f35 --- /dev/null +++ b/meta/recipes-extended/libarchive/files/0002-Fix-extracting-hardlinks-over-symlinks.patch @@ -0,0 +1,120 @@ +From ece28103885a079a129a23c5001252a1648517af Mon Sep 17 00:00:00 2001 +From: Martin Matuska <martin@matuska.org> +Date: Tue, 29 Nov 2016 16:55:41 +0100 +Subject: [PATCH 2/2] Fix extracting hardlinks over symlinks + +Closes #821 + +Upstream-Status: Backported + +Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com> +--- + libarchive/archive_write_disk_posix.c | 43 +++++++++++++++++++++++++++++++++++ + tar/test/test_symlink_dir.c | 18 ++++++++++++++- + 2 files changed, 60 insertions(+), 1 deletion(-) + +diff --git a/libarchive/archive_write_disk_posix.c b/libarchive/archive_write_disk_posix.c +index d786bc2..80b03cd 100644 +--- a/libarchive/archive_write_disk_posix.c ++++ b/libarchive/archive_write_disk_posix.c +@@ -2563,6 +2563,49 @@ check_symlinks_fsobj(char *path, int *a_eno, struct archive_string *a_estr, int + break; + } + tail[0] = c; ++ } else if ((flags & ++ ARCHIVE_EXTRACT_SECURE_SYMLINKS) == 0) { ++ /* ++ * We are not the last element and we want to ++ * follow symlinks if they are a directory. ++ * ++ * This is needed to extract hardlinks over ++ * symlinks. ++ */ ++ r = stat(head, &st); ++ if (r != 0) { ++ tail[0] = c; ++ if (errno == ENOENT) { ++ break; ++ } else { ++ fsobj_error(a_eno, a_estr, ++ errno, ++ "Could not stat %s", path); ++ res = (ARCHIVE_FAILED); ++ break; ++ } ++ } else if (S_ISDIR(st.st_mode)) { ++ if (chdir(head) != 0) { ++ tail[0] = c; ++ fsobj_error(a_eno, a_estr, ++ errno, ++ "Could not chdir %s", path); ++ res = (ARCHIVE_FATAL); ++ break; ++ } ++ /* ++ * Our view is now from inside ++ * this dir: ++ */ ++ head = tail + 1; ++ } else { ++ tail[0] = c; ++ fsobj_error(a_eno, a_estr, 0, ++ "Cannot extract through " ++ "symlink %s", path); ++ res = ARCHIVE_FAILED; ++ break; ++ } + } else { + tail[0] = c; + fsobj_error(a_eno, a_estr, 0, +diff --git a/tar/test/test_symlink_dir.c b/tar/test/test_symlink_dir.c +index 25bd8b1..852e00b 100644 +--- a/tar/test/test_symlink_dir.c ++++ b/tar/test/test_symlink_dir.c +@@ -47,11 +47,18 @@ DEFINE_TEST(test_symlink_dir) + assertMakeDir("source/dir3", 0755); + assertMakeDir("source/dir3/d3", 0755); + assertMakeFile("source/dir3/f3", 0755, "abcde"); ++ assertMakeDir("source/dir4", 0755); ++ assertMakeFile("source/dir4/file3", 0755, "abcdef"); ++ assertMakeHardlink("source/dir4/file4", "source/dir4/file3"); + + assertEqualInt(0, + systemf("%s -cf test.tar -C source dir dir2 dir3 file file2", + testprog)); + ++ /* Second archive with hardlinks */ ++ assertEqualInt(0, ++ systemf("%s -cf test2.tar -C source dir4", testprog)); ++ + /* + * Extract with -x and without -P. + */ +@@ -118,9 +125,15 @@ DEFINE_TEST(test_symlink_dir) + assertMakeSymlink("dest2/file2", "real_file2"); + assertEqualInt(0, systemf("%s -xPf test.tar -C dest2", testprog)); + +- /* dest2/dir symlink should be followed */ ++ /* "dir4" is a symlink to existing "real_dir" */ ++ if (canSymlink()) ++ assertMakeSymlink("dest2/dir4", "real_dir"); ++ assertEqualInt(0, systemf("%s -xPf test2.tar -C dest2", testprog)); ++ ++ /* dest2/dir and dest2/dir4 symlinks should be followed */ + if (canSymlink()) { + assertIsSymlink("dest2/dir", "real_dir"); ++ assertIsSymlink("dest2/dir4", "real_dir"); + assertIsDir("dest2/real_dir", -1); + } + +@@ -141,4 +154,7 @@ DEFINE_TEST(test_symlink_dir) + /* dest2/file2 symlink should be removed */ + failure("Symlink to non-existing file should be removed"); + assertIsReg("dest2/file2", -1); ++ ++ /* dest2/dir4/file3 and dest2/dir4/file4 should be hard links */ ++ assertIsHardlink("dest2/dir4/file3", "dest2/dir4/file4"); + } +-- +2.7.4 + |