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Implement new keywords: GNU.sparse.name, GNU.sparse.major, GNU.sparse.minor, GNU.sparse.realsize

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This commit is contained in:
Sergey Poznyakoff
2006-06-23 15:22:50 +00:00
parent 5679d3020e
commit 19a63e523d
1 changed files with 41 additions and 4 deletions
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45
src/xheader.c
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@@ -1363,8 +1363,39 @@ volume_filename_decoder (struct tar_stat_info *st, char const *arg,
{
decode_string (&continued_file_name, arg);
}
static void
sparse_major_coder (struct tar_stat_info const *st, char const *keyword,
struct xheader *xhdr, void const *data)
{
code_num (st->sparse_major, keyword, xhdr);
}
static void
sparse_major_decoder (struct tar_stat_info *st, char const *arg,
size_t size)
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (unsigned), "GNU.sparse.major"))
st->sparse_major = u;
}
static void
sparse_minor_coder (struct tar_stat_info const *st, char const *keyword,
struct xheader *xhdr, void const *data)
{
code_num (st->sparse_minor, keyword, xhdr);
}
static void
sparse_minor_decoder (struct tar_stat_info *st, char const *arg,
size_t size)
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (unsigned), "GNU.sparse.minor"))
st->sparse_minor = u;
}
struct xhdr_tab const xhdr_tab[] = {
{ "atime", atime_coder, atime_decoder, false },
{ "comment", dummy_coder, dummy_decoder, false },
@@ -1380,11 +1411,17 @@ struct xhdr_tab const xhdr_tab[] = {
{ "uname", uname_coder, uname_decoder, false },
/* Sparse file handling */
{ "GNU.sparse.name", path_coder, path_decoder,
true },
{ "GNU.sparse.major", sparse_major_coder, sparse_major_decoder,
true },
{ "GNU.sparse.minor", sparse_minor_coder, sparse_minor_decoder,
true },
{ "GNU.sparse.realsize", sparse_size_coder, sparse_size_decoder, true },
{ "GNU.sparse.size", sparse_size_coder, sparse_size_decoder, true },
{ "GNU.sparse.numblocks", sparse_numblocks_coder, sparse_numblocks_decoder,
true },
{ "GNU.sparse.name", path_coder, path_decoder,
true },
/* 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
@@ -1393,7 +1430,7 @@ struct xhdr_tab const xhdr_tab[] = {
true },
{ "GNU.sparse.numbytes", sparse_numbytes_coder, sparse_numbytes_decoder,
true },
/* tar >=1.16 keyword, introduced to remove the above-mentioned conflict. */
/* 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 },