bug in 2.9BSD TAR
Dan Chernikoff
dan at sri-tsc.UUCP
Thu Jul 12 03:12:09 AEST 1984
Subject: tar won't tar symlinks
Index: cmd/tar.c 2.9bsd
Description:
When you try to tar a directory that contains symlinks, you get
the error message "readlink: no such file or directory" for
each symbolic link, and the link is not written on the tape.
Note, this occurs only if the "-h" flag is NOT used, and you
do NOT give an absolute pathname of the directory on the
command line.
Repeat-By:
cd /usr
tar c0 include
(assuming your /usr/include has symlinks, e.g.
/usr/include/net slinked to /usr/src/net).
Fix:
In the subroutine putfile, where tar is writing out the symlink,
change the line
i = readlink(longname, dblock.dbuf.linkname, NAMSIZ - 1);
to be
i = readlink(shortname, dblock.dbuf.linkname, NAMSIZ - 1);
and all will be better.
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