From ca2f855c903abe2daeb9b25f1b02517f6f2135fa Mon Sep 17 00:00:00 2001 From: Sergey Poznyakoff Date: Tue, 20 Jun 2006 15:14:47 +0000 Subject: [PATCH] (pax_dump_header): Store original sparse file name in GNU.sparse.name variable. The name field in the ustar header now contains generated name (%d/GNUSparseFile.%p/%f), so that non-pax-aware tars won't extract the file under the original filename. --- src/sparse.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/src/sparse.c b/src/sparse.c index 30bf031..a8192be 100644 --- a/src/sparse.c +++ b/src/sparse.c @@ -886,11 +886,12 @@ pax_dump_header (struct tar_sparse_file *file) size_t i; char nbuf[UINTMAX_STRSIZE_BOUND]; struct sp_array *map = file->stat_info->sparse_map; - + char *save_file_name = NULL; + /* Store the real file size */ xheader_store ("GNU.sparse.size", file->stat_info, NULL); xheader_store ("GNU.sparse.numblocks", file->stat_info, NULL); - + /* FIXME-1.14-1.15.1-1.20: See the comment above. Starting with 1.17 this should display a warning about POSIX-incompatible keywords being generated. In 1.20, the true branch of the if block below @@ -907,6 +908,11 @@ pax_dump_header (struct tar_sparse_file *file) } else { + xheader_store ("GNU.sparse.name", file->stat_info, NULL); + save_file_name = file->stat_info->file_name; + file->stat_info->file_name = xheader_format_name (file->stat_info, + "%d/GNUSparseFile.%p/%f", 0); + xheader_string_begin (); for (i = 0; i < file->stat_info->sparse_map_avail; i++) { @@ -922,6 +928,11 @@ pax_dump_header (struct tar_sparse_file *file) /* Store the effective (shrunken) file size */ OFF_TO_CHARS (file->stat_info->archive_file_size, blk->header.size); finish_header (file->stat_info, blk, block_ordinal); + if (save_file_name) + { + free (file->stat_info->file_name); + file->stat_info->file_name = save_file_name; + } return true; } -- 2.45.2