/* POSIX extended headers for tar.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010 Free Software
+ Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
void
xheader_write_global (struct xheader *xhdr)
{
- char *name;
- struct keyword_list *kp;
-
- if (!keyword_global_override_list)
- return;
+ if (keyword_global_override_list)
+ {
+ struct keyword_list *kp;
- xheader_init (xhdr);
- for (kp = keyword_global_override_list; kp; kp = kp->next)
- code_string (kp->value, kp->pattern, xhdr);
- xheader_finish (xhdr);
- xheader_write (XGLTYPE, name = xheader_ghdr_name (), time (NULL), xhdr);
- free (name);
+ xheader_init (xhdr);
+ for (kp = keyword_global_override_list; kp; kp = kp->next)
+ code_string (kp->value, kp->pattern, xhdr);
+ }
+ if (xhdr->stk)
+ {
+ char *name;
+
+ xheader_finish (xhdr);
+ xheader_write (XGLTYPE, name = xheader_ghdr_name (), time (NULL), xhdr);
+ free (name);
+ }
}
\f
/* General Interface */
+#define XHDR_PROTECTED 0x01
+#define XHDR_GLOBAL 0x02
+
struct xhdr_tab
{
char const *keyword;
void (*coder) (struct tar_stat_info const *, char const *,
struct xheader *, void const *data);
void (*decoder) (struct tar_stat_info *, char const *, char const *, size_t);
- bool protect;
+ int flags;
};
/* This declaration must be extern, because ISO C99 section 6.9.2
struct xhdr_tab const *p;
for (p = xhdr_tab; p->keyword; p++)
- if (p->protect && fnmatch (pattern, p->keyword, 0) == 0)
+ if ((p->flags & XHDR_PROTECTED) && fnmatch (pattern, p->keyword, 0) == 0)
return true;
return false;
}
struct xhdr_tab const *p;
for (p = xhdr_tab; p->keyword; p++)
- if (p->protect && strcmp (p->keyword, keyword) == 0)
+ if ((p->flags & XHDR_PROTECTED) && strcmp (p->keyword, keyword) == 0)
return true;
return false;
}
size_t size __attribute__((unused)))
{
struct keyword_list **kwl = data;
- xheader_list_append (kwl, keyword, value);
+ struct xhdr_tab const *tab = locate_handler (keyword);
+ if (tab && (tab->flags & XHDR_GLOBAL))
+ tab->decoder (data, keyword, value, size);
+ else
+ xheader_list_append (kwl, keyword, value);
}
void
if (len > BLOCKSIZE)
len = BLOCKSIZE;
+ if (!p)
+ FATAL_ERROR ((0, 0, _("Unexpected EOF in archive")));
+
memcpy (&xhdr->buffer[j], p->buffer, len);
set_next_block_after (p);
}
struct xhdr_tab const xhdr_tab[] = {
- { "atime", atime_coder, atime_decoder, false },
- { "comment", dummy_coder, dummy_decoder, false },
- { "charset", dummy_coder, dummy_decoder, false },
- { "ctime", ctime_coder, ctime_decoder, false },
- { "gid", gid_coder, gid_decoder, false },
- { "gname", gname_coder, gname_decoder, false },
- { "linkpath", linkpath_coder, linkpath_decoder, false },
- { "mtime", mtime_coder, mtime_decoder, false },
- { "path", path_coder, path_decoder, false },
- { "size", size_coder, size_decoder, false },
- { "uid", uid_coder, uid_decoder, false },
- { "uname", uname_coder, uname_decoder, false },
+ { "atime", atime_coder, atime_decoder, 0 },
+ { "comment", dummy_coder, dummy_decoder, 0 },
+ { "charset", dummy_coder, dummy_decoder, 0 },
+ { "ctime", ctime_coder, ctime_decoder, 0 },
+ { "gid", gid_coder, gid_decoder, 0 },
+ { "gname", gname_coder, gname_decoder, 0 },
+ { "linkpath", linkpath_coder, linkpath_decoder, 0 },
+ { "mtime", mtime_coder, mtime_decoder, 0 },
+ { "path", path_coder, path_decoder, 0 },
+ { "size", size_coder, size_decoder, 0 },
+ { "uid", uid_coder, uid_decoder, 0 },
+ { "uname", uname_coder, uname_decoder, 0 },
/* Sparse file handling */
{ "GNU.sparse.name", path_coder, path_decoder,
- true },
+ XHDR_PROTECTED },
{ "GNU.sparse.major", sparse_major_coder, sparse_major_decoder,
- true },
+ XHDR_PROTECTED },
{ "GNU.sparse.minor", sparse_minor_coder, sparse_minor_decoder,
- true },
+ XHDR_PROTECTED },
{ "GNU.sparse.realsize", sparse_size_coder, sparse_size_decoder,
- true },
+ XHDR_PROTECTED },
{ "GNU.sparse.numblocks", sparse_numblocks_coder, sparse_numblocks_decoder,
- true },
+ XHDR_PROTECTED },
/* tar 1.14 - 1.15.90 keywords. */
- { "GNU.sparse.size", sparse_size_coder, sparse_size_decoder, true },
+ { "GNU.sparse.size", sparse_size_coder, sparse_size_decoder,
+ XHDR_PROTECTED },
/* tar 1.14 - 1.15.1 keywords. Multiple instances of these appeared in 'x'
headers, and each of them was meaningful. It confilcted with POSIX specs,
which requires that "when extended header records conflict, the last one
given in the header shall take precedence." */
{ "GNU.sparse.offset", sparse_offset_coder, sparse_offset_decoder,
- true },
+ XHDR_PROTECTED },
{ "GNU.sparse.numbytes", sparse_numbytes_coder, sparse_numbytes_decoder,
- true },
+ XHDR_PROTECTED },
/* tar 1.15.90 keyword, introduced to remove the above-mentioned conflict. */
{ "GNU.sparse.map", NULL /* Unused, see pax_dump_header() */,
- sparse_map_decoder, false },
+ sparse_map_decoder, 0 },
{ "GNU.dumpdir", dumpdir_coder, dumpdir_decoder,
- true },
+ XHDR_PROTECTED },
/* Keeps the tape/volume label. May be present only in the global headers.
Equivalent to GNUTYPE_VOLHDR. */
- { "GNU.volume.label", volume_label_coder, volume_label_decoder, true },
+ { "GNU.volume.label", volume_label_coder, volume_label_decoder,
+ XHDR_PROTECTED | XHDR_GLOBAL },
/* These may be present in a first global header of the archive.
They provide the same functionality as GNUTYPE_MULTIVOL header.
GNU.volume.offset keeps the offset of the start of this volume,
otherwise kept in oldgnu_header.offset. */
{ "GNU.volume.filename", volume_label_coder, volume_filename_decoder,
- true },
- { "GNU.volume.size", volume_size_coder, volume_size_decoder, true },
- { "GNU.volume.offset", volume_offset_coder, volume_offset_decoder, true },
+ XHDR_PROTECTED | XHDR_GLOBAL },
+ { "GNU.volume.size", volume_size_coder, volume_size_decoder,
+ XHDR_PROTECTED | XHDR_GLOBAL },
+ { "GNU.volume.offset", volume_offset_coder, volume_offset_decoder,
+ XHDR_PROTECTED | XHDR_GLOBAL },
- { NULL, NULL, NULL, false }
+ { NULL, NULL, NULL, 0 }
};
projects / chaz / tar / blobdiff