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Diffstat (limited to 'gnu/usr.bin/cpio/README')
-rw-r--r-- | gnu/usr.bin/cpio/README | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/gnu/usr.bin/cpio/README b/gnu/usr.bin/cpio/README deleted file mode 100644 index 83b5228..0000000 --- a/gnu/usr.bin/cpio/README +++ /dev/null @@ -1,56 +0,0 @@ -This is GNU cpio, a program to manage archives of files. -As of version 2.0, it supports the features of the System V release 4 -cpio, including support for tar archives. - -The main advantages of GNU cpio over Unix versions are: - -* It can access tape drives on other hosts using TCP/IP. - -* `-o' and `-p' can copy symbolic links either as symbolic links or, -with `-L', as the files they point to. - -* `-i' automatically recognizes the archive format and tries to -recover from corrupted archives. - -* The output of '-itv' looks like 'ls -l'. - -* It accepts long-named options as well as traditional -single-character options. - -A few features of other versions of cpio are missing from GNU cpio, including: - -* The `-6' option to support Sixth Edition Unix cpio archives with `-i'. - -* An option to limit volume size, like afio -s. - - -GNU cpio supports the POSIX.1 "ustar" tar format. GNU tar supports a -somewhat different, early draft of that format. That draft format has -a slightly different magic number in the tar header and doesn't -include the path prefix part of the header, which allows storing file -names that are longer than 100 characters. GNU cpio knows to -recognize the nonstandard GNU tar "ustar" archives. - -The following patch to GNU tar 1.11.1 makes GNU tar recognize standard -"ustar" archives, such as GNU cpio produces, except that it won't use -the path prefix. Without this patch, GNU tar thinks that standard -"ustar" archives are old-format tar archives and can not use the extra -information that "ustar" format contains. If you use this patch, -remember that you will lose the beginnings of paths that are longer -than 100 characters. That's why it's not an official part of GNU tar. -(Adding support for the path prefix to GNU tar is not trivial.) - ---- list.c.orig Mon Sep 14 17:04:03 1992 -+++ list.c Wed Oct 14 14:02:28 1992 -@@ -439,7 +439,7 @@ - st->st_ctime = from_oct(1+12, header->header.ctime); - } - -- if (0==strcmp(header->header.magic, TMAGIC)) { -+ if (0==strncmp(header->header.magic, TMAGIC, 5)) { - /* Unix Standard tar archive */ - *stdp = 1; - if (wantug) { - -Mail suggestions and bug reports for GNU cpio to -bug-gnu-utils@prep.ai.mit.edu. |