diff options
author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-09-15 20:40:01 +0200 |
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committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-09-15 20:44:41 +0200 |
commit | 428aa363dd2b44756a5b16aa17e8c2030de801a0 (patch) | |
tree | 8bc507fdcc795a5c75ef7a148e66e940d4df91b9 /tar | |
parent | 129e1758a5e2cf851f042e139fdd808a9be9ce94 (diff) |
Move condensed-sparse-file handling to libsquashfs
Add another helper function for getting a blocks from a condensed sparse
file, then rewrite the data writer to use that instead, using an
sqfs_file_t pointer instead of direct file i/o.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'tar')
-rw-r--r-- | tar/tar2sqfs.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/tar/tar2sqfs.c b/tar/tar2sqfs.c index ca00579..84d56f4 100644 --- a/tar/tar2sqfs.c +++ b/tar/tar2sqfs.c @@ -225,12 +225,24 @@ fail_arg: static int write_file(tar_header_decoded_t *hdr, file_info_t *fi, data_writer_t *data) { + const sqfs_sparse_map_t *it; sqfs_file_t *file; + uint64_t sum; int ret; if (hdr->sparse != NULL) { - ret = write_data_from_fd_condensed(data, fi, STDIN_FILENO, - hdr->sparse, 0); + for (sum = 0, it = hdr->sparse; it != NULL; it = it->next) + sum += it->count; + + file = sqfs_get_stdin_file(sum); + if (file == NULL) { + perror("packing files"); + return -1; + } + + ret = write_data_from_file_condensed(data, file, fi, + hdr->sparse, 0); + file->destroy(file); if (ret) return -1; @@ -243,10 +255,12 @@ static int write_file(tar_header_decoded_t *hdr, file_info_t *fi, return -1; } - if (write_data_from_file(data, fi, file, 0)) + ret = write_data_from_file(data, fi, file, 0); + file->destroy(file); + + if (ret) return -1; - file->destroy(file); return skip_padding(STDIN_FILENO, fi->size); } |