#include <fnmatch.h>
-#if !HAVE_DECL_STRTOIMAX && !defined strtoimax
-intmax_t strtoimax ();
-#endif
-#if !HAVE_DECL_STRTOUMAX && !defined strtoumax
-uintmax_t strtoumax ();
-#endif
-
static bool xheader_protected_pattern_p (char const *pattern);
static bool xheader_protected_keyword_p (char const *keyword);
static void xheader_set_single_keyword (char *) __attribute__ ((noreturn));
However it should wait until buffer.c is finally rewritten */
-enum { BILLION = 1000000000, LOG10_BILLION = 9 };
+\f
+/* Interface functions to obstacks */
+
+static void
+x_obstack_grow (struct xheader *xhdr, const char *ptr, size_t length)
+{
+ obstack_grow (xhdr->stk, ptr, length);
+ xhdr->size += length;
+}
+
+static void
+x_obstack_1grow (struct xheader *xhdr, char c)
+{
+ obstack_1grow (xhdr->stk, c);
+ xhdr->size++;
+}
+
+static void
+x_obstack_blank (struct xheader *xhdr, size_t length)
+{
+ obstack_blank (xhdr->stk, length);
+ xhdr->size += length;
+}
\f
/* Keyword options */
/* Template for the name field of a 'g' type header */
static char *globexthdr_name;
-static bool
+bool
xheader_keyword_deleted_p (const char *kw)
{
struct keyword_list *kp;
{
char const *keyword;
void (*coder) (struct tar_stat_info const *, char const *,
- struct xheader *, void *data);
- void (*decoder) (struct tar_stat_info *, char const *);
+ struct xheader *, void const *data);
+ void (*decoder) (struct tar_stat_info *, char const *, size_t);
bool protect;
};
Return true on success, false otherwise. */
static bool
decode_record (char **ptr,
- void (*handler) (void *, char const *, char const *),
+ void (*handler) (void *, char const *, char const *, size_t),
void *data)
{
char *start = *ptr;
}
*p = nextp[-1] = '\0';
- handler (data, keyword, p + 1);
+ handler (data, keyword, p + 1, nextp - p - 2); /* '=' + trailing '\n' */
*p = '=';
nextp[-1] = '\n';
*ptr = nextp;
{
struct xhdr_tab const *t = locate_handler (kp->pattern);
if (t)
- t->decoder (st, kp->value);
+ t->decoder (st, kp->value, strlen (kp->value));
}
}
static void
-decx (void *data, char const *keyword, char const *value)
+decx (void *data, char const *keyword, char const *value, size_t size)
{
struct xhdr_tab const *t;
struct tar_stat_info *st = data;
t = locate_handler (keyword);
if (t)
- t->decoder (st, value);
+ t->decoder (st, value, size);
+ else
+ ERROR((0, 0, _("Ignoring unknown extended header keyword `%s'"),
+ keyword));
}
void
}
static void
-decg (void *data, char const *keyword, char const *value)
+decg (void *data, char const *keyword, char const *value,
+ size_t size __attribute__((unused)))
{
struct keyword_list **kwl = data;
xheader_list_append (kwl, keyword, value);
}
void
-xheader_store (char const *keyword, struct tar_stat_info const *st, void *data)
+xheader_store (char const *keyword, struct tar_stat_info const *st,
+ void const *data)
{
struct xhdr_tab const *t;
if (extended_header.buffer)
return;
t = locate_handler (keyword);
- if (!t)
+ if (!t || !t->coder)
return;
if (xheader_keyword_deleted_p (keyword)
|| xheader_keyword_override_p (keyword))
}
static void
-xheader_print (struct xheader *xhdr, char const *keyword, char const *value)
+xheader_print_n (struct xheader *xhdr, char const *keyword,
+ char const *value, size_t vsize)
{
- size_t len = strlen (keyword) + strlen (value) + 3; /* ' ' + '=' + '\n' */
+ size_t len = strlen (keyword) + vsize + 3; /* ' ' + '=' + '\n' */
size_t p;
size_t n = 0;
char nbuf[UINTMAX_STRSIZE_BOUND];
}
while (n != p);
- obstack_grow (xhdr->stk, np, n);
- obstack_1grow (xhdr->stk, ' ');
- obstack_grow (xhdr->stk, keyword, strlen (keyword));
- obstack_1grow (xhdr->stk, '=');
- obstack_grow (xhdr->stk, value, strlen (value));
- obstack_1grow (xhdr->stk, '\n');
+ x_obstack_grow (xhdr, np, n);
+ x_obstack_1grow (xhdr, ' ');
+ x_obstack_grow (xhdr, keyword, strlen (keyword));
+ x_obstack_1grow (xhdr, '=');
+ x_obstack_grow (xhdr, value, vsize);
+ x_obstack_1grow (xhdr, '\n');
+}
+
+static void
+xheader_print (struct xheader *xhdr, char const *keyword, char const *value)
+{
+ xheader_print_n (xhdr, keyword, value, strlen (value));
}
void
for (kp = keyword_override_list; kp; kp = kp->next)
code_string (kp->value, kp->pattern, xhdr);
- obstack_1grow (xhdr->stk, 0);
xhdr->buffer = obstack_finish (xhdr->stk);
- xhdr->size = strlen (xhdr->buffer);
}
void
xhdr->size = 0;
}
+\f
+/* Buildable strings */
+static uintmax_t string_length;
+
+void
+xheader_string_begin ()
+{
+ string_length = 0;
+}
+
+void
+xheader_string_add (char const *s)
+{
+ if (extended_header.buffer)
+ return;
+ extended_header_init ();
+ string_length += strlen (s);
+ x_obstack_grow (&extended_header, s, strlen (s));
+}
+
+void
+xheader_string_end (char const *keyword)
+{
+ size_t len;
+ size_t p;
+ size_t n = 0;
+ char nbuf[UINTMAX_STRSIZE_BOUND];
+ char const *np;
+ char *cp;
+
+ if (extended_header.buffer)
+ return;
+ extended_header_init ();
+
+ len = strlen (keyword) + string_length + 3; /* ' ' + '=' + '\n' */
+
+ do
+ {
+ p = n;
+ np = umaxtostr (len + p, nbuf);
+ n = nbuf + sizeof nbuf - 1 - np;
+ }
+ while (n != p);
+
+ p = strlen (keyword) + n + 2;
+ x_obstack_blank (&extended_header, p);
+ x_obstack_1grow (&extended_header, '\n');
+ cp = obstack_next_free (extended_header.stk) - string_length - p - 1;
+ memmove (cp + p, cp, string_length);
+ cp = stpcpy (cp, np);
+ *cp++ = ' ';
+ cp = stpcpy (cp, keyword);
+ *cp++ = '=';
+}
+
\f
/* Implementations */
static void
code_time (struct timespec t, char const *keyword, struct xheader *xhdr)
{
- time_t s = t.tv_sec;
- int ns = t.tv_nsec;
- char sbuf[1/*"-"*/ + UINTMAX_STRSIZE_BOUND + 1/*"."*/ + LOG10_BILLION];
- char *np;
- bool negative = s < 0;
-
- if (negative && ns != 0)
- {
- s++;
- ns = BILLION - ns;
- }
-
- np = umaxtostr (negative ? - (uintmax_t) s : (uintmax_t) s, sbuf + 1);
- if (negative)
- *--np = '-';
- code_ns_fraction (ns, sbuf + UINTMAX_STRSIZE_BOUND);
- xheader_print (xhdr, keyword, np);
+ char buf[TIMESPEC_STRSIZE_BOUND];
+ xheader_print (xhdr, keyword, code_timespec (t, buf));
}
static bool
dummy_coder (struct tar_stat_info const *st __attribute__ ((unused)),
char const *keyword __attribute__ ((unused)),
struct xheader *xhdr __attribute__ ((unused)),
- void *data __attribute__ ((unused)))
+ void const *data __attribute__ ((unused)))
{
}
static void
dummy_decoder (struct tar_stat_info *st __attribute__ ((unused)),
- char const *arg __attribute__ ((unused)))
+ char const *arg __attribute__ ((unused)),
+ size_t size __attribute__((unused)))
{
}
static void
atime_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
- code_time (get_stat_atime (&st->stat), keyword, xhdr);
+ code_time (st->atime, keyword, xhdr);
}
static void
-atime_decoder (struct tar_stat_info *st, char const *arg)
+atime_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
struct timespec ts;
if (decode_time (&ts, arg, "atime"))
- set_stat_atime (&st->stat, ts);
+ st->atime = ts;
}
static void
gid_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_num (st->stat.st_gid, keyword, xhdr);
}
static void
-gid_decoder (struct tar_stat_info *st, char const *arg)
+gid_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (gid_t), "gid"))
static void
gname_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_string (st->gname, keyword, xhdr);
}
static void
-gname_decoder (struct tar_stat_info *st, char const *arg)
+gname_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
decode_string (&st->gname, arg);
}
static void
linkpath_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_string (st->link_name, keyword, xhdr);
}
static void
-linkpath_decoder (struct tar_stat_info *st, char const *arg)
+linkpath_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
decode_string (&st->link_name, arg);
}
static void
ctime_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
- code_time (get_stat_ctime (&st->stat), keyword, xhdr);
+ code_time (st->ctime, keyword, xhdr);
}
static void
-ctime_decoder (struct tar_stat_info *st, char const *arg)
+ctime_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
struct timespec ts;
if (decode_time (&ts, arg, "ctime"))
- set_stat_ctime (&st->stat, ts);
+ st->ctime = ts;
}
static void
mtime_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
- code_time (get_stat_mtime (&st->stat), keyword, xhdr);
+ code_time (st->mtime, keyword, xhdr);
}
static void
-mtime_decoder (struct tar_stat_info *st, char const *arg)
+mtime_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
struct timespec ts;
if (decode_time (&ts, arg, "mtime"))
- set_stat_mtime (&st->stat, ts);
+ st->mtime = ts;
}
static void
path_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_string (st->file_name, keyword, xhdr);
}
static void
-path_decoder (struct tar_stat_info *st, char const *arg)
+path_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
decode_string (&st->orig_file_name, arg);
decode_string (&st->file_name, arg);
static void
size_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_num (st->stat.st_size, keyword, xhdr);
}
static void
-size_decoder (struct tar_stat_info *st, char const *arg)
+size_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (off_t), "size"))
- st->archive_file_size = st->stat.st_size = u;
+ st->stat.st_size = u;
}
static void
uid_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_num (st->stat.st_uid, keyword, xhdr);
}
static void
-uid_decoder (struct tar_stat_info *st, char const *arg)
+uid_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (uid_t), "uid"))
static void
uname_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data __attribute__ ((unused)))
+ struct xheader *xhdr, void const *data __attribute__ ((unused)))
{
code_string (st->uname, keyword, xhdr);
}
static void
-uname_decoder (struct tar_stat_info *st, char const *arg)
+uname_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
decode_string (&st->uname, arg);
}
static void
sparse_size_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data)
+ struct xheader *xhdr, void const *data)
{
size_coder (st, keyword, xhdr, data);
}
static void
-sparse_size_decoder (struct tar_stat_info *st, char const *arg)
+sparse_size_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (off_t), "GNU.sparse.size"))
static void
sparse_numblocks_coder (struct tar_stat_info const *st, char const *keyword,
struct xheader *xhdr,
- void *data __attribute__ ((unused)))
+ void const *data __attribute__ ((unused)))
{
code_num (st->sparse_map_avail, keyword, xhdr);
}
static void
-sparse_numblocks_decoder (struct tar_stat_info *st, char const *arg)
+sparse_numblocks_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, SIZE_MAX, "GNU.sparse.numblocks"))
static void
sparse_offset_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data)
+ struct xheader *xhdr, void const *data)
{
- size_t *pi = data;
+ size_t const *pi = data;
code_num (st->sparse_map[*pi].offset, keyword, xhdr);
}
static void
-sparse_offset_decoder (struct tar_stat_info *st, char const *arg)
+sparse_offset_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, TYPE_MAXIMUM (off_t), "GNU.sparse.offset"))
static void
sparse_numbytes_coder (struct tar_stat_info const *st, char const *keyword,
- struct xheader *xhdr, void *data)
+ struct xheader *xhdr, void const *data)
{
- size_t *pi = data;
+ size_t const *pi = data;
code_num (st->sparse_map[*pi].numbytes, keyword, xhdr);
}
static void
-sparse_numbytes_decoder (struct tar_stat_info *st, char const *arg)
+sparse_numbytes_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
{
uintmax_t u;
if (decode_num (&u, arg, SIZE_MAX, "GNU.sparse.numbytes"))
}
}
+static void
+sparse_map_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size __attribute__((unused)))
+{
+ int offset = 1;
+ static char *keyword = "GNU.sparse.map";
+
+ st->sparse_map_avail = 0;
+ while (1)
+ {
+ uintmax_t u;
+ char *delim;
+ struct sp_array e;
+
+ if (!ISDIGIT (*arg))
+ {
+ ERROR ((0, 0, _("Malformed extended header: invalid %s=%s"),
+ keyword, arg));
+ return;
+ }
+
+ errno = 0;
+ u = strtoumax (arg, &delim, 10);
+ if (offset)
+ {
+ e.offset = u;
+ if (!(u == e.offset && errno != ERANGE))
+ {
+ out_of_range_header (keyword, arg, 0, TYPE_MAXIMUM (off_t));
+ return;
+ }
+ }
+ else
+ {
+ e.numbytes = u;
+ if (!(u == e.numbytes && errno != ERANGE))
+ {
+ out_of_range_header (keyword, arg, 0, TYPE_MAXIMUM (size_t));
+ return;
+ }
+ if (st->sparse_map_avail < st->sparse_map_size)
+ st->sparse_map[st->sparse_map_avail++] = e;
+ else
+ {
+ ERROR ((0, 0, _("Malformed extended header: excess %s=%s"),
+ "GNU.sparse.numbytes", arg));
+ return;
+ }
+ }
+
+ offset = !offset;
+
+ if (*delim == 0)
+ break;
+ else if (*delim != ',')
+ {
+ ERROR ((0, 0,
+ _("Malformed extended header: invalid %s: unexpected delimiter %c"),
+ keyword, *delim));
+ return;
+ }
+
+ arg = delim + 1;
+ }
+
+ if (!offset)
+ ERROR ((0, 0,
+ _("Malformed extended header: invalid %s: odd number of values"),
+ keyword));
+}
+
+static void
+dumpdir_coder (struct tar_stat_info const *st, char const *keyword,
+ struct xheader *xhdr, void const *data)
+{
+ xheader_print_n (xhdr, keyword, data, dumpdir_size (data));
+}
+
+static void
+dumpdir_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size)
+{
+ st->dumpdir = xmalloc (size);
+ 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;
+}
+
+static void
+volume_filename_decoder (struct tar_stat_info *st, char const *arg,
+ size_t size)
+{
+ decode_string (&continued_file_name, arg);
+}
+
+
struct xhdr_tab const xhdr_tab[] = {
{ "atime", atime_coder, atime_decoder, false },
{ "comment", dummy_coder, dummy_decoder, false },
{ "GNU.sparse.size", sparse_size_coder, sparse_size_decoder, true },
{ "GNU.sparse.numblocks", sparse_numblocks_coder, sparse_numblocks_decoder,
true },
+ /* tar 1.14 - 1.15.1 keywords. Multiplse 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 },
{ "GNU.sparse.numbytes", sparse_numbytes_coder, sparse_numbytes_decoder,
true },
+ /* tar >=1.16 keyword, introduced to remove the above-mentioned conflict. */
+ { "GNU.sparse.map", NULL /* Unused, see pax_dump_header() */,
+ sparse_map_decoder, false },
-#if 0 /* GNU private keywords (not yet implemented) */
-
- /* The next directory entry actually contains the names of files
- that were in the directory at the time the dump was made.
- Supersedes GNUTYPE_DUMPDIR header type. */
- { "GNU.dump.name", dump_name_coder, dump_name_decoder, false },
- { "GNU.dump.status", dump_status_coder, dump_status_decoder, false },
+ { "GNU.dumpdir", dumpdir_coder, dumpdir_decoder,
+ true },
- /* 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.
otherwise kept in the size field of a multivolume header. The
GNU.volume.offset keeps the offset of the start of this volume,
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
+ { "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 },
{ NULL, NULL, NULL, false }
};
projects / chaz / tar / blobdiff