On 6/25/07, Sebastian Faulborn <[EMAIL PROTECTED]> wrote: > >On 6/23/07, Robert Connolly <robert at linuxfromscratch.org > ><http://linuxfromscratch.org/mailman/listinfo/hlfs-dev>> wrote: > >>/ I don't recall ever personally using libxcrypt with openssh, but I do > >>remember > />>/ someone emailing me about a function name conflict (openssh also has > it's own > />>/ xcrypt() function), and they got it to work with some minor > modifications. > />>/ > /> > >Now that may be the heart of the problem, I will look into this xcrypt > >openssh function. > > > >-- > >Kevin Day > > You don't need a patch for OpenSSH to work with libxcrypt. OpenSSH calls > internally > when logging in using passwords a function called xcrypt() which calls > crypt() from > libcrypt. Since the include file of libcrypt is symlinked to libxcrypt and the > include file from libxcrypt defines crypt() as xcrypt(), OpenSSH ends up > calling > xcrypt() in a recursive loop until the stack overflows ("#define crypt > xcrypt"). > > Since no application I know of uses the xcrypt functions from crypt.h (they > can from > xcrypt.h), you simply need to rename the defines in the include file of > libcrypt: > > 1) remove the symlink /usr/include/crypt.h -> xcrypt.h (if it exists) > 2a) copy xcrypt.h -> crypt.h > > in crypt.h change... > 2b) change the defines: > #ifndef _XCRYPT_H > #define _XCRYPT_H > -> > #ifndef _CRYPT_H > #define _CRYPT_H > 3) put comments in front of all defines of the following form: > #define crypt xcrypt > -> > //#define crypt xcrypt > 4) rename all functions which contain an "x" in its name: > extern char *xcrypt (__const char *__key, __const char *__salt) __THROW; > -> > extern char *crypt (__const char *__key, __const char *__salt) __THROW; > 5) now recompile OpenSSH and it should work > > Note: all changes are done after libxcrypt has been compiled. I am using > libxcrypt V2.4. > > Hope this helps! > > Sebastian Faulborn > Homepage: http://www.secure-slinux.org > >
Just beautiful. Worked flawlessly and effortlessly. Thanks for the info, I can now use blowfish via openssh! when you get a chance, robert, please update this on the hint -- Kevin Day -- http://linuxfromscratch.org/mailman/listinfo/hlfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
