From: Sebastian Andrzej Siewior <sebast...@breakpoint.cc> xz refuses to decompress a file which has more than one hard link. It can be reproduced byi (as per Vincent): |$ echo foo > file1 |$ xz file1 |$ ln file1.xz file2.xz |$ xz -d file1.xz |xz: file1.xz: Input file has more than one hard link, skipping
This behaviour is consistent with `gzip' and `bzip2' but it is not documented. The `--force' option would ignore this restriction. I traced it back in `gzip' to the 90s but the change was not documented as such. It was moved, altered but not documented. At some point the error was restricted to <= 2 which might be related to disk quota. Ignore hard link count on input. Debian BTS: https://bugs.debian.org/975981 Reported-by: Vincent Lefevre <vinc...@vinc17.net> Signed-off-by: Sebastian Andrzej Siewior <sebast...@breakpoint.cc> --- src/xz/file_io.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/src/xz/file_io.c b/src/xz/file_io.c index 0ba8db8fbc4cc..7fa17431c5dbc 100644 --- a/src/xz/file_io.c +++ b/src/xz/file_io.c @@ -697,13 +697,6 @@ io_open_src_real(file_pair *pair) pair->src_name); goto error; } - - if (pair->src_st.st_nlink > 1) { - message_warning(_("%s: Input file has more " - "than one hard link, " - "skipping"), pair->src_name); - goto error; - } } // If it is something else than a regular file, wait until -- 2.30.0.rc2
