blob: d9bf7cd0c63e1e9dceb850fb9b7c600022e02787 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
--- a/archival/libunarchive/get_header_tar.c
+++ b/archival/libunarchive/get_header_tar.c
@@ -261,26 +261,33 @@
case '0':
#if ENABLE_FEATURE_TAR_OLDGNU_COMPATIBILITY
if (last_char_is(file_header->name, '/')) {
- file_header->mode |= S_IFDIR;
- } else
+ goto set_dir;
+ }
#endif
file_header->mode |= S_IFREG;
break;
case '2':
file_header->mode |= S_IFLNK;
+ /* have seen tarballs with size field containing
+ * the size of the link target's name */
+ size0:
+ file_header->size = 0;
break;
case '3':
file_header->mode |= S_IFCHR;
- break;
+ goto size0; /* paranoia */
case '4':
file_header->mode |= S_IFBLK;
- break;
+ goto size0;
case '5':
+#if ENABLE_FEATURE_TAR_OLDGNU_COMPATIBILITY
+ set_dir:
+#endif
file_header->mode |= S_IFDIR;
- break;
+ goto size0;
case '6':
file_header->mode |= S_IFIFO;
- break;
+ goto size0;
#if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
case 'L':
/* free: paranoia: tar with several consecutive longnames */
--- a/archival/libunarchive/seek_by_jump.c
+++ b/archival/libunarchive/seek_by_jump.c
@@ -8,7 +8,9 @@
void seek_by_jump(const archive_handle_t *archive_handle, unsigned amount)
{
- if (lseek(archive_handle->src_fd, (off_t) amount, SEEK_CUR) == (off_t) -1) {
+ if (amount
+ && lseek(archive_handle->src_fd, (off_t) amount, SEEK_CUR) == (off_t) -1
+ ) {
if (errno == ESPIPE)
seek_by_read(archive_handle, amount);
else
|
