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libarchive: do not extract unsafe symlinks unless $EXTRACT_UNSAFE_SYMLINKS=1

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function                                             old     new   delta
unsafe_symlink_target                                  -     147    +147
unzip_main                                          2711    2732     +21
copy_file                                           1657    1678     +21
tar_main                                             999     971     -28
data_extract_all                                    1038     984     -54
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(add/remove: 2/0 grow/shrink: 2/2 up/down: 189/-82)           Total: 107 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-08-10 11:52:42 +02:00
parent 0cf64c8b5d
commit bc9bbeb2b8
9 changed files with 85 additions and 55 deletions
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5
coreutils/link.c
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@ -31,9 +31,8 @@ int link_main(int argc UNUSED_PARAM, char **argv)
argv += optind;
if (link(argv[0], argv[1]) != 0) {
/* shared message */
bb_perror_msg_and_die("can't create %slink "
"'%s' to '%s'", "hard",
argv[1], argv[0]
bb_perror_msg_and_die("can't create %slink '%s' to '%s'",
"hard", argv[1], argv[0]
);
}
return EXIT_SUCCESS;