Hi, Gals and Guys, The Linux C library 5.4.23 is a bug-fixing release for libc 5.4.17. There are no new features in this release. I have modified the NIS support in libc. Please get the latst ypclients at where you get this C library. There is a NYS bug. If a service is not available, the some NIS/NIS+ routines will give back a NULL pointer, but the other functions expect a struct with the error code. The easiest way to fix it is to remove the services (nis, yp, ...) which are not available on your machine. Binaries of locale and localedef are included in the binary release. I added the support for larger PATH_MAX in linux 2.1.x. The old binaries should run fine with the new shared library compiled with the new PATH_MAX in linux 2.1.x. I added some libc 6.x/glibc 2.x compatibility codes for libc 5.4.14 so that the old XFree86 binaries will run fine with the new XFree86 shared libraries compiled with libc 6.x/glibc 2.x. If you use linux 2.1.x, you need libc 5.4.23 or above to compile libc yourself. The pre-compiled libc should run fine under linux 2.1.x. Also this library is compiled with -D_REENTRANT so that errno is MT safe. Again, if there is no new serious bug report, the next public release of the Linux C library will be 6.0. The main features in libc 6.0, aka glibc 2.0, are MT-safe and pthread support. With libc 6.0, Linux will enter an era of SMP kernel support as well as the kernel-based pthread support. I have been running an alpha version of libc 6.0 with gcc, binutils, bin86 and XFree86 3.2. Everything looks very encouraging. As of 2.0.1, glibc is not suitable for general public. But people are encouraged to try it out and send in bug report. glibc 2.0.2 should improve a lot. I expect glibc 2.0.x will be stabilized soon to be used as libc 6.0. The shared libraries are now compiled with -g1 which can provide minimum information when core dump happens. You can strip libc.so.5.4.23 if you want. Due to the new, improved locale, the Linux C library 5.4.23 is binary compatible with libc 5.3.12 but not vice versa. The binaries compiled/linked with libc.so.5.4.23 may not run with libc.so.5.3.12. You may need to regenerate locale files for the new locale in libc 5.4.23 if you use locales other tha C/POSIX which are the defaults. The locale sources are at ftp://dkuug.dk/i18n/WG15-collection/locales There are many security bug fixes. Please consult ChangeLog for details. Please let me know if there are more security bugs remains. This is the public release of the Linux C library 5.4.23. Please read the ChangeLog for details regarding changes/bug fixes. DISTRIBUTION SITES: The primary FTP sites for the compiler/C library are: * ftp://tsx-11.mit.edu/pub/linux/packages/GCC * ftp://sunsite.unc.edu/pub/Linux/GCC DISTRIBUTION FILES: 1. libc-5.4.23.bin.tar.gz REQUIRED. This package contains the header files for libc, shared and static ELF libraries libc and libm, and the static ELF library libbsd.a. The header files in libc-5.4.23.bin.tar.gz are not complete. You need to install the kernel source tree for the system-dependent header files. The header files are in lib-x.y.z.bin.tar.gz and libc-x.y.z.tar.gz. You can do # gzip -dc lib-x.y.z.bin.tar.gz | tar xvvf - usr/include to extract the header files without the binaries files. A separate tar file for the header files may cause unnecessary confusion. 2. libc-5.4.23.tar.gz Source tree for libc and header files. 3. libc-5.4.17-5.4.23.diff.gz Context diffs against the source tree from the previous libc release. Please make sure the empty libc/regex/rx.h is deleted. MISSING LIBRARIES: The only libraries included in this package are the Linux C library, libc and the math library, libm. ELF versions of libraries formerly included in the libc package can be found at the following FTP sites: * gdbm ftp://sunsite.unc.edu/pub/Linux/libs/db/gdbm-1.7.3-ELF.tar.gz * db ftp://sunsite.unc.edu/pub/Linux/libs/db/db-1.85.2.bin.tar.gz * ncurses ftp://ftp.tos.net/pub/linux/ncurses * termcap ftp://tsx-11.mit.edu/pub/linux/packages/GCC ftp://sunsite.unc.edu/pub/Linux/GCC Gertjan van Wingerde (gertjan@cs.vu.nl) maintains the ELF db package. Christopher Wiles (wileyc@moscow.com) maintains the ELF gdbm and curses. MacGyver maintains the ELF ncurses. NOTE: I strongly suggest using ncurses to replace curses/termcap. The current ncurses supports ELF. SYSTEM REQUIREMENTS: * kernel 1.1.92 or above. It may work with an older kernel if the QMAGIC format is supported. If you use the kernel 1.3.x, you should upgrade to 1.3.40 or above. Otherwise readv/writev system calls won't work right. To compile the MIT pthread kernel, I only builed it with Linux kernel source code 1.99.10. You can comment out pthreads in DIRS in libc/sysdeps/Makefile. * gcc-2.7.2 or above and binutils-2.7.0.3 or above. * ld.so-1.8.1 or above. The latest version can be obtained from ftp://ftp.ods.com/pub/linux * libg++ 2.7.2.1 or above. This is only necessary for development using c++. BINARY INSTALLATION: Ensure that /usr/include/asm and /usr/include/linux are a symlinks to their counterparts in the kernel source tree. For example, if your kernel source resides within /usr/src/linux, execute: ln -s -f /usr/src/linux/include/asm /usr/include/asm ln -s -f /usr/src/linux/include/linux /usr/include/linux As some programs need , the following two commands may be necessary to generate that header file: cd /usr/src/linux make config Verify that /var/run/utmp and /var/log/wtmp exist. Replace all other occurances of utmp and wtmp (/etc/utmp, for example) with symlinks. Assuming the libc binary tarfile is in /, and as root, execute: cd / rm -f /lib/libc.so /lib/libm.so rm -f /usr/lib/libc.so /usr/lib/libm.so rm -f /usr/include/iolibio.h /usr/include/iostdio.h rm -f /usr/include/wcstr.h /usr/include/mbstr.h rm -f /usr/include/ld_so_config.h /usr/include/localeinfo.h rm -rf /usr/include/netinet /usr/include/net /usr/include/pthread gzip -dc libc-5.4.23.bin.tar.gz | tar xvf - SOURCE INSTALLATION: Unpack the libc source tarfile in your source directory. Refer to the README for compilation instructions. COMPATIBILITY NOTES: If your kernel uses system call numbers 135 to 146 for unintended purposes, this library may not work for you. One example is the kswap kernel patch for 1.2.x uses the same system call numbers for other uses. That breaks this library. Please compare/check , and . You have to make sure those system call numbers are consistent from libc to your kernel. There is no support for a.out libraries in this source tree. The latest version of the a.out library suite is libc-4.7.5, which can be obtained from one of the ftp sites listed below. The structure DIR, defined in sysdeps/linux/dirstream.h, was changed in release 5.2.0. If you upgrade from release 5.1.4 or earlier to release 5.2.0 or later, you must reboot after installing the new libraries. If you compile your own library, *do not* "make install". Instead, copy the new libc.so* to /lib, do "ldconfig -v", reboot, then do "make install" A dirent bug, which erroneously defined d->reclen to d->namlen if USE_GNU was defined, has been fixed. Unfortunately, some GNU packages depend on this bug. GNU make 3.xx is one of them. A patch is included here. A back door has been added for the file descriptor in DIR. You need to define DIRENT_ILLEGAL_ACCESS to access the dd_fd field. You should use dirfd () to get the the file descriptor in DIR. Use this at your own risk. A new dirent bug is fixed. The ELF nfsd should work fine. and have been removed. PTHREAD NOTES: The MIT pthread library is not supported in libc 5.4.x. The new kernel-based pthread will be in libc 6.0. NYS NOTES: NYS binaries are not provided this time. NYS 0.27.4 is included in the source tree as a compile-time option. Please consult README.nys and other applicable NYS documents before attempting NYS installation. I disabled DBM for NYS. Some changes are needed to support non-builtin dbm. INFORMATION/DOCUMENTATION: ELF related WWW pages: * http://www.intac.com/~cully/elf.html * http://www.sjc.ox.ac.uk/users/barlow/linux-gcc.html * http://www.blackdown.org/elf/elf.html ELF documentation: * ftp://sunsite.unc.edu/pub/Linux/GCC/elf.ps.gz * ftp://sunsite.unc.edu/pub/Linux/GCC/elf.latex.tar.gz * ftp://sunsite.unc.edu/pub/Linux/GCC/ELF.doc.tar.gz H.J. hjl@gnu.ai.mit.edu 02/17/97 ---- RCS file: /home/cvs/gnu/make/dir.c,v retrieving revision 1.1.1.1 diff -c -r1.1.1.1 dir.c *** 1.1.1.1 1995/06/25 03:27:16 --- dir.c 1995/06/25 03:55:22 *************** *** 20,26 **** #if defined (POSIX) || defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__) #include ! #ifndef __GNU_LIBRARY__ #define D_NAMLEN(d) strlen((d)->d_name) #else /* GNU C library. */ #define D_NAMLEN(d) ((d)->d_namlen) --- 20,26 ---- #if defined (POSIX) || defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__) #include ! #ifndef __BAD_GNU_LIBRARY__ #define D_NAMLEN(d) strlen((d)->d_name) #else /* GNU C library. */ #define D_NAMLEN(d) ((d)->d_namlen) =================================================================== RCS file: /home/cvs/gnu/make/glob/glob.c,v retrieving revision 1.1.1.1 diff -c -r1.1.1.1 glob.c *** 1.1.1.1 1995/06/25 03:27:18 --- glob/glob.c 1995/06/25 03:56:01 *************** *** 64,70 **** #if defined (POSIX) || defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__) #include ! #ifndef __GNU_LIBRARY__ #define D_NAMLEN(d) strlen((d)->d_name) #else /* GNU C library. */ #define D_NAMLEN(d) ((d)->d_namlen) --- 64,70 ---- #if defined (POSIX) || defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__) #include ! #ifndef __BAD_GNU_LIBRARY__ #define D_NAMLEN(d) strlen((d)->d_name) #else /* GNU C library. */ #define D_NAMLEN(d) ((d)->d_namlen)