X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=NEWS;h=b305f26a27348edb86cf13b53980b832d5cfa5c0;hb=de328a580ab6f5ff4a3237ce21f1ef0b7dd12984;hp=a84873da6eb888645775159058c654ffb026f901;hpb=c1b30c268f8517bfe61fe253a34613584351efc0;p=chaz%2Ftar diff --git a/NEWS b/NEWS index a84873d..b305f26 100644 --- a/NEWS +++ b/NEWS @@ -1,4 +1,4 @@ -GNU tar NEWS - User visible changes. 2010-07-16 +GNU tar NEWS - User visible changes. 2010-09-06 Please send GNU tar bug reports to @@ -11,6 +11,14 @@ time stamps to the full resolution. * Bugfixes. +** More reliable directory traversal when creating archives + +Tar now checks for inconsistencies caused when a file system is +modified while tar is creating an archive. The new checks are +implemented via the openat, fstatat, and readlinkat calls standardized +by POSIX.1-2008. On an older system that lacks these calls, tar +emulates them at some cost in efficiency and reliability. + ** Spurious error diagnostics on broken pipe. When receiving SIGPIPE, tar would exit with error status and @@ -46,12 +54,12 @@ update of an archive: tar -rf archive --label 'My volume' . -This did not work in previous versions, in spite of what the docs said. +This did not work in previous versions, in spite of what the docs said. ** --record-size and --tape-length (-L) options Usual size suffixes are allowed for these options. For example, --L10k stands for a 10 kilobyte tape length. +-L10k stands for a 10 kilobyte tape length. ** Fix dead loop on extracting existing symlinks with the -k option. @@ -134,7 +142,7 @@ the Epoch or a `Time reference' (see below). * Time references in --pax-option argument. Any value from the --pax-option argument that is enclosed in a pair -of curly braces represents a time reference. The string between the +of curly braces represents a time reference. The string between the braces is understood either as a textual time representation, as described in chapter 7, "Date input formats", of the Tar manual, or as a name of an existing file, starting with `/' or `.'. In the latter @@ -168,14 +176,14 @@ version 1.22 - Sergey Poznyakoff, 2009-03-05 * Support for xz compression -Tar uses xz for compression if one of the following conditions is met: +Tar uses xz for compression if one of the following conditions is met: 1. The option --xz or -J (see below) is used. 2. The xz binary is set as compressor using --use-compress-program option. 3. The file name of the archive being created ends in `.xz' and auto-compress option (-a) is used. -Xz is used for decompression if one of the following conditions is met: +Xz is used for decompression if one of the following conditions is met: 1. The option --xz or -J is used. 2. The xz binary is set as compressor using --use-compress-program option. @@ -228,7 +236,7 @@ control type of archive members affected by them. The flags are: - s Apply transformation to symbolic link targets. - - h + - h Apply transformation to hard link targets. Corresponding upper-case letters negate the meaning, so that @@ -307,7 +315,7 @@ during both creation and extraction. Tar 1.19 used them only during extraction. For a detailed description, see chapter 6.7 "Modifying File and Member -Names". +Names". * Info (end-of-volume) scripts @@ -334,8 +342,8 @@ control systems, e.g. "CVS/", ".svn/", etc. The following options now work with incremental archives as well: - --exclude-caches - --exclude-caches-all + --exclude-caches + --exclude-caches-all --exclude-tag --exclude-tag-all --exclude-tag-under @@ -346,7 +354,7 @@ Previous versions always stored absolute file names in rename records, even if -P was not used. This is fixed: rename records contain file names processed in accordance with the command line settings. - + * Fix --version output. * Recognition of broken archives.