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When extracting, skip ".." members

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* NEWS: Document this.
* src/extract.c (extract_archive): Skip members whose names
contain "..".
This commit is contained in:
Paul Eggert
2016-10-29 21:05:35 -07:00
committed by Paul Eggert
parent 1d2674bacc
commit 7340f67b98
2 changed files with 15 additions and 1 deletions
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src/extract.c
+8
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@@ -1629,12 +1629,20 @@ extract_archive (void)
{
char typeflag;
tar_extractor_t fun;
bool skip_dotdot_name;
fatal_exit_hook = extract_finish;
set_next_block_after (current_header);
skip_dotdot_name = (!absolute_names_option
&& contains_dot_dot (current_stat_info.orig_file_name));
if (skip_dotdot_name)
ERROR ((0, 0, _("%s: Member name contains '..'"),
quotearg_colon (current_stat_info.orig_file_name)));
if (!current_stat_info.file_name[0]
|| skip_dotdot_name
|| (interactive_option
&& !confirm ("extract", current_stat_info.file_name)))
{