GNU binutils in deterministic mode (ar rD or built with --enable-deterministic-archives) hard codes file mode to 0644 (NOT 0100644) since https://github.com/bminor/binutils-gdb/commit/36e4dce69dd2
This confuses busybox ar x (data_extract_all): touch a; ar rD a.ar a ar: creating a.ar busybox ar x a.ar ar: unrecognized file type hexdump -C a.ar 00000000 21 3c 61 72 63 68 3e 0a 61 2f 20 20 20 20 20 20 |!<arch>.a/ | 00000010 20 20 20 20 20 20 20 20 30 20 20 20 20 20 20 20 | 0 | 00000020 20 20 20 20 30 20 20 20 20 20 30 20 20 20 20 20 | 0 0 | 00000030 36 34 34 20 20 20 20 20 30 20 20 20 20 20 20 20 |644 0 | 00000040 20 20 60 0a | `.| As a workaround, force the mode bits to S_IFREG, as nothing else makes sense for ar. Signed-off-by: Peter Korsgaard <[email protected]> --- archival/libarchive/get_header_ar.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/archival/libarchive/get_header_ar.c b/archival/libarchive/get_header_ar.c index 3a19d6ff7..6bd897392 100644 --- a/archival/libarchive/get_header_ar.c +++ b/archival/libarchive/get_header_ar.c @@ -92,8 +92,12 @@ char FAST_FUNC get_header_ar(archive_handle_t *archive_handle) /* Only size is always present, the rest may be missing in * long filename pseudo file. Thus we decode the rest * after dealing with long filename pseudo file. + * + * GNU binutils in deterministic mode hard codes mode to 0644 (NOT + * 0100644). AR archives can only contain files, so force file + * mode. */ - typed->mode = read_num(ar.formatted.mode, 8, sizeof(ar.formatted.mode)); + typed->mode = read_num(ar.formatted.mode, 8, sizeof(ar.formatted.mode)) | S_IFREG; typed->gid = read_num(ar.formatted.gid, 10, sizeof(ar.formatted.gid)); typed->uid = read_num(ar.formatted.uid, 10, sizeof(ar.formatted.uid)); typed->mtime = read_num(ar.formatted.date, 10, sizeof(ar.formatted.date)); -- 2.20.1 _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
