brant@manta.pha.pa.us (Brant Cheikes) (06/16/89)
I recently posted an article wondering if 14-char filename strings in SYSV filesystem directory entries would fail to be null terminated. I suspected that this might be a bug. Quite a few people have written to point out that yes, the UNIX SYSV directory structure has always been this way: 2 bytes for the inode, 14 bytes for the filename string (16-byte directory structures). Thus names of exactly 14 chars will not have a trailing null. I've cancelled the original article, to spare those folks away this week at Usenix. However, it has been confirmed that the version of Doug Gwyn's dirent package I snarfed from uunet in February has been superseded. The new version fixes a couple of minor bugs, one of which is the mishandling of 14-char names in SYSV UNIX. I'm not sure if the new version is on uunet; Bob Wilber (wilber@research.att.com) was kind enough to send me his copy (thanks, Bob), and I've put it in manta's anonymous uucp area in case anyone else wants it (phone (215)662-5301, login "uupub", password "UUsnarf", 1200 baud UNIXpc OBM), /usr/spool/pub/dirent.cpio.Z: -rw-r--r-- 1 brant users 24041 Jun 15 23:18 dirent.cpio.Z [an aside: I'd like to hear from any UNIXpc folks who are either working on or using GNU tar.] -- Brant Cheikes University of Pennsylvania, Department of Computer and Information Science brant@manta.pha.pa.us, brant@linc.cis.upenn.edu, bpa!manta!brant
les@chinet.chi.il.us (Leslie Mikesell) (06/22/89)
In article <485@manta.pha.pa.us> brant@manta.pha.pa.us (Brant Cheikes) writes: >[an aside: I'd like to hear from any UNIXpc folks who are either >working on or using GNU tar.] Version 1.07 contains some comments about the unix pc so perhaps it has been tested there. It seems to compile if you do the obvious things: use the USG entry in the Makefile, deleting the references to rtape_lib.c and rtape_lib.$O in the LOCAL_??? lines. modify port.c to #define WANT_MKDIR #define WANT_FTRUNCATE #define WANT_GETWD #undef WANT_GETOPT (this is defined a few lines down from the USG stuff) Les Mikesell