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(xhdr_tab): Support for new GNU keywords.

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This commit is contained in:
Sergey Poznyakoff
2005-11-09 13:09:25 +00:00
parent 5eecc4c994
commit e1286c1989
1 changed files with 48 additions and 5 deletions
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53
src/xheader.c
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@@ -1285,6 +1285,52 @@ dumpdir_decoder (struct tar_stat_info *st, char const *arg,
memcpy (st->dumpdir, arg, size);
}
static void
volume_label_coder (struct tar_stat_info const *st, char const *keyword,
struct xheader *xhdr, void const *data)
{
code_string (data, keyword, xhdr);
}
static void
volume_label_decoder (struct tar_stat_info *st, char const *arg, size_t size)
{
decode_string (&volume_label, arg);
}
static void
volume_size_coder (struct tar_stat_info const *st, char const *keyword,
struct xheader *xhdr, void const *data)
{
off_t v = *(off_t*)data;
code_num (v, keyword, xhdr);
}
static void
volume_size_decoder (struct tar_stat_info *st, char const *arg, size_t size)
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (uintmax_t), "GNU.volume.size"))
continued_file_size = u;
}
/* FIXME: Merge with volume_size_coder */
static void
volume_offset_coder (struct tar_stat_info const *st, char const *keyword,
struct xheader *xhdr, void const *data)
{
off_t v = *(off_t*)data;
code_num (v, keyword, xhdr);
}
static void
volume_offset_decoder (struct tar_stat_info *st, char const *arg, size_t size)
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (uintmax_t), "GNU.volume.offset"))
continued_file_offset = u;
}
struct xhdr_tab const xhdr_tab[] = {
{ "atime", atime_coder, atime_decoder, false },
{ "comment", dummy_coder, dummy_decoder, false },
@@ -1318,11 +1364,9 @@ struct xhdr_tab const xhdr_tab[] = {
{ "GNU.dumpdir", dumpdir_coder, dumpdir_decoder,
true },
#if 0 /* GNU private keywords (not yet implemented) */
/* Keeps the tape/volume header. May be present only in the global headers.
/* Keeps the tape/volume label. May be present only in the global headers.
Equivalent to GNUTYPE_VOLHDR. */
{ "GNU.volume.header", volume_header_coder, volume_header_decoder, false },
{ "GNU.volume.label", volume_label_coder, volume_label_decoder, true },
/* These may be present in a first global header of the archive.
They provide the same functionality as GNUTYPE_MULTIVOL header.
@@ -1332,7 +1376,6 @@ struct xhdr_tab const xhdr_tab[] = {
otherwise kept in oldgnu_header.offset. */
{ "GNU.volume.size", volume_size_coder, volume_size_decoder, false },
{ "GNU.volume.offset", volume_offset_coder, volume_offset_decoder, false },
#endif
{ NULL, NULL, NULL, false }
};