=head1 LIBC NSS

GNU Libc (glibc) uses the Name Service Switch (NSS) to configure the behavior
of the C library for the local environment, and to configure how it reads
system data, such as passwords and group information.  This is implemented
using an /etc/nsswitch.conf configuration file, and using one or more of the
/lib/libnss_* libraries.  BusyBox tries to avoid using any libc calls that make
use of NSS.  Some applets however, such as login and su, will use libc functions
that require NSS.

If you enable CONFIG_USE_BB_PWD_GRP, BusyBox will use internal functions to
directly access the /etc/passwd, /etc/group, and /etc/shadow files without
using NSS.  This may allow you to run your system without the need for
installing any of the NSS configuration files and libraries.

When used with glibc, the BusyBox 'networking' applets will similarly require
that you install at least some of the glibc NSS stuff (in particular,
/etc/nsswitch.conf, /lib/libnss_dns*, /lib/libnss_files*, and /lib/libresolv*).

Shameless Plug: As an alternative, one could use a C library such as uClibc.  In
addition to making your system significantly smaller, uClibc does not require the
use of any NSS support files or libraries.

=head1 MAINTAINER

Denis Vlasenko <vda.linux@googlemail.com>

=head1 AUTHORS

The following people have contributed code to BusyBox whether they know it or
not.  If you have written code included in BusyBox, you should probably be
listed here so you can obtain your bit of eternal glory.  If you should be
listed here, or the description of what you have done needs more detail, or is
incorrect, please send in an update.


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Emanuele Aina <emanuele.aina@tiscali.it>
    run-parts

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Erik Andersen <andersen@codepoet.org>

    Tons of new stuff, major rewrite of most of the
    core apps, tons of new apps as noted in header files.
    Lots of tedious effort writing these boring docs that
    nobody is going to actually read.

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Laurence Anderson <l.d.anderson@warwick.ac.uk>

    rpm2cpio, unzip, get_header_cpio, read_gz interface, rpm

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Jeff Angielski <jeff@theptrgroup.com>

    ftpput, ftpget

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Edward Betts <edward@debian.org>

    expr, hostid, logname, whoami

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John Beppu <beppu@codepoet.org>

    du, nslookup, sort

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Brian Candler <B.Candler@pobox.com>

    tiny-ls(ls)

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Randolph Chung <tausq@debian.org>

    fbset, ping, hostname

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Dave Cinege <dcinege@psychosis.com>

    more(v2), makedevs, dutmp, modularization, auto links file,
    various fixes, Linux Router Project maintenance

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Jordan Crouse <jordan@cosmicpenguin.net>

    ipcalc

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Magnus Damm <damm@opensource.se>

    tftp client insmod powerpc support

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Larry Doolittle <ldoolitt@recycle.lbl.gov>

    pristine source directory compilation, lots of patches and fixes.

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Glenn Engel <glenne@engel.org>

    httpd

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Gennady Feldman <gfeldman@gena01.com>

    Sysklogd (single threaded syslogd, IPC Circular buffer support,
    logread), various fixes.

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Karl M. Hegbloom <karlheg@debian.org>

    cp_mv.c, the test suite, various fixes to utility.c, &c.

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Daniel Jacobowitz <dan@debian.org>

    mktemp.c

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Matt Kraai <kraai@alumni.cmu.edu>

    documentation, bugfixes, test suite

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Stephan Linz <linz@li-pro.net>

    ipcalc, Red Hat equivalence

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John Lombardo <john@deltanet.com>

    tr

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Glenn McGrath <bug1@iinet.net.au>

    Common unarchiving code and unarchiving applets, ifupdown, ftpgetput,
    nameif, sed, patch, fold, install, uudecode.
    Various bugfixes, review and apply numerous patches.

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Manuel Novoa III <mjn3@codepoet.org>

    cat, head, mkfifo, mknod, rmdir, sleep, tee, tty, uniq, usleep, wc, yes,
    mesg, vconfig, make_directory, parse_mode, dirname, mode_string,
    get_last_path_component, simplify_path, and a number trivial libbb routines

    also bug fixes, partial rewrites, and size optimizations in
    ash, basename, cal, cmp, cp, df, du, echo, env, ln, logname, md5sum, mkdir,
    mv, realpath, rm, sort, tail, touch, uname, watch, arith, human_readable,
    interface, dutmp, ifconfig, route

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Vladimir Oleynik <dzo@simtreas.ru>

    cmdedit; xargs(current), httpd(current);
    ports: ash, crond, fdisk, inetd, stty, traceroute, top;
    locale, various fixes
    and irreconcilable critic of everything not perfect.

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Bruce Perens <bruce@pixar.com>

    Original author of BusyBox in 1995, 1996. Some of his code can
    still be found hiding here and there...

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Tim Riker <Tim@Rikers.org>

    bug fixes, member of fan club

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Kent Robotti <robotti@metconnect.com>

    reset, tons and tons of bug reports and patches.

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Chip Rosenthal <chip@unicom.com>, <crosenth@covad.com>

    wget - Contributed by permission of Covad Communications

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Pavel Roskin <proski@gnu.org>

    Lots of bugs fixes and patches.

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Gyepi Sam <gyepi@praxis-sw.com>

    Remote logging feature for syslogd

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Linus Torvalds <torvalds@transmeta.com>

    mkswap, fsck.minix, mkfs.minix

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Mark Whitley <markw@codepoet.org>

    grep, sed, cut, xargs(previous),
    style-guide, new-applet-HOWTO, bug fixes, etc.

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Charles P. Wright <cpwright@villagenet.com>

    gzip, mini-netcat(nc)

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Enrique Zanardi <ezanardi@ull.es>

    tarcat (since removed), loadkmap, various fixes, Debian maintenance

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Tito Ragusa <farmatito@tiscali.it>

    devfsd and size optimizations in strings, openvt and deallocvt.

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Paul Fox <pgf@foxharp.boston.ma.us>

    vi editing mode for ash, various other patches/fixes

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Roberto A. Foglietta <me@roberto.foglietta.name>

    port: dnsd

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Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

    misc

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Mike Frysinger <vapier@gentoo.org>

    initial e2fsprogs, printenv, setarch, sum, misc

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Jie Zhang <jie.zhang@analog.com>

    fixed two bugs in msh and hush (exitcode of killed processes)

=cut