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Lines 783-788
code_num (uintmax_t value, char const *k
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xheader_print (xhdr, keyword, sbuf); | xheader_print (xhdr, keyword, sbuf); |
} | } |
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static bool |
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decode_num (uintmax_t *num, char const *arg, uintmax_t maxval, |
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char const *keyword) |
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{ |
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uintmax_t u; |
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char *arg_lim; |
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if (! (ISDIGIT (*arg) |
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&& (errno = 0, u = strtoumax (arg, &arg_lim, 10), !*arg_lim))) |
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{ |
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ERROR ((0, 0, _("Malformed extended header: invalid %s=%s"), |
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keyword, arg)); |
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return false; |
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} |
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if (! (u <= maxval && errno != ERANGE)) |
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{ |
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ERROR ((0, 0, _("Extended header %s=%s is out of range"), |
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keyword, arg)); |
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return false; |
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} |
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*num = u; |
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return true; |
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} |
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static void | static void |
dummy_coder (struct tar_stat_info const *st __attribute__ ((unused)), | dummy_coder (struct tar_stat_info const *st __attribute__ ((unused)), |
char const *keyword __attribute__ ((unused)), | char const *keyword __attribute__ ((unused)), |
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gid_decoder (struct tar_stat_info *st, char const *arg) | gid_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, TYPE_MAXIMUM (gid_t), "gid")) |
st->stat.st_gid = u; | st->stat.st_gid = u; |
} | } |
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size_decoder (struct tar_stat_info *st, char const *arg) | size_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, TYPE_MAXIMUM (off_t), "size")) |
st->archive_file_size = st->stat.st_size = u; | st->archive_file_size = st->stat.st_size = u; |
} | } |
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uid_decoder (struct tar_stat_info *st, char const *arg) | uid_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, TYPE_MAXIMUM (uid_t), "uid")) |
st->stat.st_uid = u; | st->stat.st_uid = u; |
} | } |
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sparse_size_decoder (struct tar_stat_info *st, char const *arg) | sparse_size_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, TYPE_MAXIMUM (off_t), "GNU.sparse.size")) |
st->stat.st_size = u; | st->stat.st_size = u; |
} | } |
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sparse_numblocks_decoder (struct tar_stat_info *st, char const *arg) | sparse_numblocks_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, SIZE_MAX, "GNU.sparse.numblocks")) |
{ | { |
st->sparse_map_size = u; | st->sparse_map_size = u; |
st->sparse_map = calloc(st->sparse_map_size, sizeof(st->sparse_map[0])); |
st->sparse_map = xcalloc (u, sizeof st->sparse_map[0]); |
st->sparse_map_avail = 0; | st->sparse_map_avail = 0; |
} | } |
} | } |
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sparse_offset_decoder (struct tar_stat_info *st, char const *arg) | sparse_offset_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, TYPE_MAXIMUM (off_t), "GNU.sparse.offset")) |
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{ |
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if (st->sparse_map_avail < st->sparse_map_size) |
st->sparse_map[st->sparse_map_avail].offset = u; | st->sparse_map[st->sparse_map_avail].offset = u; |
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else |
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ERROR ((0, 0, _("Malformed extended header: excess %s=%s"), |
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"GNU.sparse.offset", arg)); |
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} |
} | } |
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static void | static void |
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sparse_numbytes_decoder (struct tar_stat_info *st, char const *arg) | sparse_numbytes_decoder (struct tar_stat_info *st, char const *arg) |
{ | { |
uintmax_t u; | uintmax_t u; |
if (xstrtoumax (arg, NULL, 10, &u, "") == LONGINT_OK) |
if (decode_num (&u, arg, SIZE_MAX, "GNU.sparse.numbytes")) |
{ | { |
if (st->sparse_map_avail == st->sparse_map_size) | if (st->sparse_map_avail == st->sparse_map_size) |
{ |
st->sparse_map = x2nrealloc (st->sparse_map, |
st->sparse_map_size *= 2; |
&st->sparse_map_size, |
st->sparse_map = xrealloc (st->sparse_map, |
sizeof st->sparse_map[0]); |
st->sparse_map_size |
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* sizeof st->sparse_map[0]); |
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} |
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st->sparse_map[st->sparse_map_avail++].numbytes = u; | st->sparse_map[st->sparse_map_avail++].numbytes = u; |
} | } |
} | } |
