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View Code? Open in Web Editor NEWCMS EDF Filesystem Utility
Home Page: http://www.casita.net/pub/cmsfs/
License: GNU General Public License v2.0
CMS EDF Filesystem Utility
Home Page: http://www.casita.net/pub/cmsfs/
License: GNU General Public License v2.0
README <plaintext> 2001-Jan-30 (Tue) CMSFS TXT Rick Troth <[email protected]> Copyright © 2001, BMC Software, Inc., Houston, Texas, USA See the LICENSE file for details. See the INSTALL file for build instructions. WARNING: The "driver" function included in this package is untested, and since drivers run in kernel space, there is risk. The "utility" function is safer because it runs in user space. (I have not completed updating the driver since we crossed the 2.2.x to 2.4.x line. Working on it!) This is the README file for the CMS Filesystem driver and utility. This file may also be found under the name cmsfs.txt. ALL TEXT FILES IN THIS PACKAGE have tab characters expanded for the purpose of "eat your own cookin", specifically that the package may be maintained on CMS, where tabs function as expected but are a hassle. (It's an XEDIT thing.) This filesystem driver and utility is for the CMS "minidisk" filesystem, referred to as "EDF" in IBM's VM/ESA operating system (the CMS component). There was previously a "CDF" format which is not supported. Done in the 1.0 release: 'cmsfsvol' ---- report on a CMS volume in CMS 'Q DISK' format 'cmsfslst' ---- list CMS files in CMS 'LISTFILE' format 'cmsfscat' ---- conCATenate one or more CMS files to stdout 'cmsfsck' ----- filesystem check for CMS vols (aka: fsck.cmsfs) 'cmsfscp' ----- copy CMS files, preserving time stamps libcmsfs.a ---- "archive" library for user space (utility) mode cmsfs.o ------- the FS driver, for 'mount -t cms' to work The following objectives are not in the package as of 1.0: 'cmsfsls' ----- UNIX style listing (already have CMS style) R/W capability globbing in the utility varying file conversion NOT SUPPORTED: CDF (old CMS minidisk format), hierarchical directories (sub-directories) LFS volumes (LAN File Services; aka PWS volumes) As of 2000-Sep-08 all source files in this package are processed *by* this package. That is, they reside on a CMS minidisk hosted by VM/ESA, shared R/O with a Linux/390 guest, and copied to Linux storage using previously built CMS FS utilities. Once new sources are copied, fresh executables are built from those, and the cycle continues. This is good for QA. This further means that many of the sources are maintained with CMS XEDIT, for those who are interested in such things (and you know who you are!). It seems reasonable for a filesystem driver to be able to reside in the filesystem type it supports. So it is with this package. This leads to some funny names in the source directory. Please accept that as an artifact of committment to quality. As of 2001-Feb-18 (0.9.17) the driver is in a usable state. Exceptions abound: Linux "dasd" driver does not flush its buffers, so we have to re-IPL to get new CMS content, so we don't do this as often as we would like. utility functions: cmsfs_vopen(), cmsfs_vclose() cmsfs_fopen(), cmsfs_fclose() cmsfs_open(), cmsfs_close() driver functions: cmsfs_mount(), cmsfs_umount() cmsfs_init(), cmsfs_cleanup() init_module(), cleanup_module() common functions: cmsfs_map_ADT() cmsfs_map_FST() cmsfs_map_EXT() cmsfs_read(), cmsfs_lookup() functions with different code depending on the mode: cmsfs_error() cmsfs_bread() cmsfs_malloc() cmsfs_free()
The build logic for the package needs to also support creating an RPM.
The build of cmsfs is failing for openSUSE/SLES.
The error message is:
[ 99s] *** UNAME says this is a Linux system.
[ 100s] cmsfssed.sh: this release of Linux is not supported!
I took a look to the IBM website and cmsfs should be continuously supported for z/VM.
Is there any update for Linux available?
The package leaves a number of functions with implicit declarations.
It contains the standard #include statements. Need to investigate what prototyping is missing.
The package traditionally has translated between ASCII and EBCDIC as ISO-8859-1 and CP1047.
On the Unix/Linux side, systems have moved away from 256-byte code pages and toward UTF-8.
The package needs to support translation of CP1047 into UTF-8.
Addressing other EBCDIC code pages will be raised as a separate issue.
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