10-08-2010
Quote:
Originally Posted by
methyl
@jlliagre
This is verifiable fact.
You misunderstood my reply. I was more commenting the "but not ksh" part of your sentence. Bash has indeed a character by character read feature, but as far as I know isn't "raw" in the sense it cannot read or store binary data (specifically nulls) so wouldn't be suitable for the expected task.
Quote:
The O/P states that bash is still working. I picked up the bash "read" idea from the IBM website after googling the library filename (which we finally got accurately in post #15). Found a thread where they were responding to someone in a similar situation. Renaming this library is a technique to get certain software such as Apache running on AIX when a replacement library is installed further down the library search path. However you have to do things in precisely the right order or you are in a mess.
Unfortunately the promising thread petered out when that O/P rebooted the computer and an unrelated can of worms opened due to having two system discs at different releases of AIX with the wrong one as the default boot.
Can you post a link to that thread ?
Quote:
I picked on "ftp" and "rcp" as ideas because they were not on a list I found of dependencies for the high level library. This does not mean that it will work, but it is worth a try. Given access to the O/S we could find out what libraries each binary requires and look for a loophole.
Either they bundle libc (i.e. are statically linked) or they are dynamically linked and obviously need libc.a which itself demand libcrypt.a. The OP stated there was no statically linked executables on that AIX release. This lead me to conclude that way can't work (just like mounting a removable media fails).
Quote:
On the permissions front we won't need execute permissions but we could need world read.
May be. That depends on AIX implementation. On Solaris shared libraries are required to be executable, on Gnu/Linux, they aren't.
Quote:
Depends on what the default umask is in the first place.
If setting the x bit is required with AIX, the umask won't help. "umask" allows to remove bits that otherwise would have been set, not the other way around. A shell do not create executable files.
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LEARN ABOUT NETBSD
compat_sunos
COMPAT_SUNOS(8) BSD System Manager's Manual COMPAT_SUNOS(8)
NAME
compat_sunos -- setup procedure for m68k, sparc and sparc64 architectures
DESCRIPTION
NetBSD/sparc64, NetBSD/sparc and some of the NetBSD/m68k architectures can run SunOS executables. Most executables will work.
The exceptions include programs that use the SunOS kvm library, and various system calls, ioctl()'s, or kernel semantics that are difficult
to emulate. The number of reasons why a program might fail to work is (thankfully) longer than the number of programs that fail to run.
Static executables will normally run without any extra setup. This procedure details the directories and files that must be set up to allow
dynamically linked executables to work.
The files you need are on your SunOS machine. You need to worry about the legal issues of ensuring that you have a right to use the required
files on your machine. On your NetBSD machine, do the following:
1. mkdir -p /emul/sunos/usr/lib /emul/sunos/usr/5lib
2. cp SunOS:/usr/lib/lib*.so.*.* NetBSD:/emul/sunos/usr/lib
3. cp SunOS:/usr/5lib/lib*.so.*.* NetBSD:/emul/sunos/usr/5lib
4. cp SunOS:/usr/lib/ld.so NetBSD:/emul/sunos/usr/lib/ld.so
5. If you ever expect to use YP, you will want to create a link:
ln -s /var/run/ypbind.lock /etc/ypbind.lock
Alternatively, you can use an NFS mount to accomplish the same effect. On your NetBSD machine, do the following:
1. mkdir -p /emul/sunos/usr
2. mount SunOS:/usr /emul/sunos/usr
This will place the SunOS libraries on your NetBSD machine in a location where the SunOS compatibility code will look for first, where they
do not conflict with the standard libraries.
NOTES
When using compat_sunos on NetBSD/sparc64, the COMPAT_NETBSD32 option must also be used.
BUGS
A list of things which fail to work in compatibility mode should be here.
SunOS executables can not handle directory offset cookies > 32 bits. Should such an offset occur, you will see the message ``sunos_getdents:
dir offset too large for emulated program''. Currently, this can only happen on NFS mounted filesystems, mounted from servers that return
offsets with information in the upper 32 bits. These errors should rarely happen, but can be avoided by mounting this filesystem with offset
translation enabled. See the -X option to mount_nfs(8). The -2 option to mount_nfs(8) will also have the desired effect, but is less
preferable.
The NetBSD/sparc64 support is less complete than the other ports.
BSD
February 3, 2001 BSD