lostecho/oldlinux-files
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
eec934fe6cdf00ff46c70c324c1949d18222ecc3
oldlinux-files/ftp-archives/tsx-11.mit.edu/1996-10-07/sources/libs/gpl-shadow.shar
gohigh 32616db5a4 add directory ftp-archives
2024-02-19 00:24:15 -05:00

1941 lines
64 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters
This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
To: Linux-Development@senator-bedfellow.MIT.EDU
Crossposted-To: alt.sources
From: jfh@rpp386 (John F. Haugh II)
Subject: LGPL'd Shadow Password Library
Date: Sun, 13 Feb 1994 18:32:42 GMT
Sorry this took so long. This is the "free'd" shadow functions that
seem to be the core set of requirements for having shadowing in all
versions of Linux. This is the only posting I plan to make of this
code as the "real" Shadow is regularly posted to comp.sources.misc
and regularly archived.
---- Cut Here and unpack ----
#!/bin/sh
# shar: Shell Archiver (v1.29)
# Packed Sun Feb 13 12:23:43 CST 1994 by jfh
# from directory /home/jfh/src/c/gnu-shadow-lib
#
# Run the following text with /bin/sh to create:
# COPYING
# Makefile
# shadow.c
# shadow.h
# gshadow.c
# gshadow.h
#
sed 's/^X//' << 'Spam_Animals' > COPYING &&
X GNU LIBRARY GENERAL PUBLIC LICENSE
X Version 2, June 1991
X
X Copyright (C) 1991 Free Software Foundation, Inc.
X 675 Mass Ave, Cambridge, MA 02139, USA
X Everyone is permitted to copy and distribute verbatim copies
X of this license document, but changing it is not allowed.
X
X[This is the first released version of the library GPL. It is
X numbered 2 because it goes with version 2 of the ordinary GPL.]
X
X Preamble
X
X The licenses for most software are designed to take away your
Xfreedom to share and change it. By contrast, the GNU General Public
XLicenses are intended to guarantee your freedom to share and change
Xfree software--to make sure the software is free for all its users.
X
X This license, the Library General Public License, applies to some
Xspecially designated Free Software Foundation software, and to any
Xother libraries whose authors decide to use it. You can use it for
Xyour libraries, too.
X
X When we speak of free software, we are referring to freedom, not
Xprice. Our General Public Licenses are designed to make sure that you
Xhave the freedom to distribute copies of free software (and charge for
Xthis service if you wish), that you receive source code or can get it
Xif you want it, that you can change the software or use pieces of it
Xin new free programs; and that you know you can do these things.
X
X To protect your rights, we need to make restrictions that forbid
Xanyone to deny you these rights or to ask you to surrender the rights.
XThese restrictions translate to certain responsibilities for you if
Xyou distribute copies of the library, or if you modify it.
X
X For example, if you distribute copies of the library, whether gratis
Xor for a fee, you must give the recipients all the rights that we gave
Xyou. You must make sure that they, too, receive or can get the source
Xcode. If you link a program with the library, you must provide
Xcomplete object files to the recipients so that they can relink them
Xwith the library, after making changes to the library and recompiling
Xit. And you must show them these terms so they know their rights.
X
X Our method of protecting your rights has two steps: (1) copyright
Xthe library, and (2) offer you this license which gives you legal
Xpermission to copy, distribute and/or modify the library.
X
X Also, for each distributor's protection, we want to make certain
Xthat everyone understands that there is no warranty for this free
Xlibrary. If the library is modified by someone else and passed on, we
Xwant its recipients to know that what they have is not the original
Xversion, so that any problems introduced by others will not reflect on
Xthe original authors' reputations.
X
X Finally, any free program is threatened constantly by software
Xpatents. We wish to avoid the danger that companies distributing free
Xsoftware will individually obtain patent licenses, thus in effect
Xtransforming the program into proprietary software. To prevent this,
Xwe have made it clear that any patent must be licensed for everyone's
Xfree use or not licensed at all.
X
X Most GNU software, including some libraries, is covered by the ordinary
XGNU General Public License, which was designed for utility programs. This
Xlicense, the GNU Library General Public License, applies to certain
Xdesignated libraries. This license is quite different from the ordinary
Xone; be sure to read it in full, and don't assume that anything in it is
Xthe same as in the ordinary license.
X
X The reason we have a separate public license for some libraries is that
Xthey blur the distinction we usually make between modifying or adding to a
Xprogram and simply using it. Linking a program with a library, without
Xchanging the library, is in some sense simply using the library, and is
Xanalogous to running a utility program or application program. However, in
Xa textual and legal sense, the linked executable is a combined work, a
Xderivative of the original library, and the ordinary General Public License
Xtreats it as such.
X
X Because of this blurred distinction, using the ordinary General
XPublic License for libraries did not effectively promote software
Xsharing, because most developers did not use the libraries. We
Xconcluded that weaker conditions might promote sharing better.
X
X However, unrestricted linking of non-free programs would deprive the
Xusers of those programs of all benefit from the free status of the
Xlibraries themselves. This Library General Public License is intended to
Xpermit developers of non-free programs to use free libraries, while
Xpreserving your freedom as a user of such programs to change the free
Xlibraries that are incorporated in them. (We have not seen how to achieve
Xthis as regards changes in header files, but we have achieved it as regards
Xchanges in the actual functions of the Library.) The hope is that this
Xwill lead to faster development of free libraries.
X
X The precise terms and conditions for copying, distribution and
Xmodification follow. Pay close attention to the difference between a
X"work based on the library" and a "work that uses the library". The
Xformer contains code derived from the library, while the latter only
Xworks together with the library.
X
X Note that it is possible for a library to be covered by the ordinary
XGeneral Public License rather than by this special one.
X
X GNU LIBRARY GENERAL PUBLIC LICENSE
X TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
X
X 0. This License Agreement applies to any software library which
Xcontains a notice placed by the copyright holder or other authorized
Xparty saying it may be distributed under the terms of this Library
XGeneral Public License (also called "this License"). Each licensee is
Xaddressed as "you".
X
X A "library" means a collection of software functions and/or data
Xprepared so as to be conveniently linked with application programs
X(which use some of those functions and data) to form executables.
X
X The "Library", below, refers to any such software library or work
Xwhich has been distributed under these terms. A "work based on the
XLibrary" means either the Library or any derivative work under
Xcopyright law: that is to say, a work containing the Library or a
Xportion of it, either verbatim or with modifications and/or translated
Xstraightforwardly into another language. (Hereinafter, translation is
Xincluded without limitation in the term "modification".)
X
X "Source code" for a work means the preferred form of the work for
Xmaking modifications to it. For a library, complete source code means
Xall the source code for all modules it contains, plus any associated
Xinterface definition files, plus the scripts used to control compilation
Xand installation of the library.
X
X Activities other than copying, distribution and modification are not
Xcovered by this License; they are outside its scope. The act of
Xrunning a program using the Library is not restricted, and output from
Xsuch a program is covered only if its contents constitute a work based
Xon the Library (independent of the use of the Library in a tool for
Xwriting it). Whether that is true depends on what the Library does
Xand what the program that uses the Library does.
X
X 1. You may copy and distribute verbatim copies of the Library's
Xcomplete source code as you receive it, in any medium, provided that
Xyou conspicuously and appropriately publish on each copy an
Xappropriate copyright notice and disclaimer of warranty; keep intact
Xall the notices that refer to this License and to the absence of any
Xwarranty; and distribute a copy of this License along with the
XLibrary.
X
X You may charge a fee for the physical act of transferring a copy,
Xand you may at your option offer warranty protection in exchange for a
Xfee.
X
X 2. You may modify your copy or copies of the Library or any portion
Xof it, thus forming a work based on the Library, and copy and
Xdistribute such modifications or work under the terms of Section 1
Xabove, provided that you also meet all of these conditions:
X
X a) The modified work must itself be a software library.
X
X b) You must cause the files modified to carry prominent notices
X stating that you changed the files and the date of any change.
X
X c) You must cause the whole of the work to be licensed at no
X charge to all third parties under the terms of this License.
X
X d) If a facility in the modified Library refers to a function or a
X table of data to be supplied by an application program that uses
X the facility, other than as an argument passed when the facility
X is invoked, then you must make a good faith effort to ensure that,
X in the event an application does not supply such function or
X table, the facility still operates, and performs whatever part of
X its purpose remains meaningful.
X
X (For example, a function in a library to compute square roots has
X a purpose that is entirely well-defined independent of the
X application. Therefore, Subsection 2d requires that any
X application-supplied function or table used by this function must
X be optional: if the application does not supply it, the square
X root function must still compute square roots.)
X
XThese requirements apply to the modified work as a whole. If
Xidentifiable sections of that work are not derived from the Library,
Xand can be reasonably considered independent and separate works in
Xthemselves, then this License, and its terms, do not apply to those
Xsections when you distribute them as separate works. But when you
Xdistribute the same sections as part of a whole which is a work based
Xon the Library, the distribution of the whole must be on the terms of
Xthis License, whose permissions for other licensees extend to the
Xentire whole, and thus to each and every part regardless of who wrote
Xit.
X
XThus, it is not the intent of this section to claim rights or contest
Xyour rights to work written entirely by you; rather, the intent is to
Xexercise the right to control the distribution of derivative or
Xcollective works based on the Library.
X
XIn addition, mere aggregation of another work not based on the Library
Xwith the Library (or with a work based on the Library) on a volume of
Xa storage or distribution medium does not bring the other work under
Xthe scope of this License.
X
X 3. You may opt to apply the terms of the ordinary GNU General Public
XLicense instead of this License to a given copy of the Library. To do
Xthis, you must alter all the notices that refer to this License, so
Xthat they refer to the ordinary GNU General Public License, version 2,
Xinstead of to this License. (If a newer version than version 2 of the
Xordinary GNU General Public License has appeared, then you can specify
Xthat version instead if you wish.) Do not make any other change in
Xthese notices.
X
X Once this change is made in a given copy, it is irreversible for
Xthat copy, so the ordinary GNU General Public License applies to all
Xsubsequent copies and derivative works made from that copy.
X
X This option is useful when you wish to copy part of the code of
Xthe Library into a program that is not a library.
X
X 4. You may copy and distribute the Library (or a portion or
Xderivative of it, under Section 2) in object code or executable form
Xunder the terms of Sections 1 and 2 above provided that you accompany
Xit with the complete corresponding machine-readable source code, which
Xmust be distributed under the terms of Sections 1 and 2 above on a
Xmedium customarily used for software interchange.
X
X If distribution of object code is made by offering access to copy
Xfrom a designated place, then offering equivalent access to copy the
Xsource code from the same place satisfies the requirement to
Xdistribute the source code, even though third parties are not
Xcompelled to copy the source along with the object code.
X
X 5. A program that contains no derivative of any portion of the
XLibrary, but is designed to work with the Library by being compiled or
Xlinked with it, is called a "work that uses the Library". Such a
Xwork, in isolation, is not a derivative work of the Library, and
Xtherefore falls outside the scope of this License.
X
X However, linking a "work that uses the Library" with the Library
Xcreates an executable that is a derivative of the Library (because it
Xcontains portions of the Library), rather than a "work that uses the
Xlibrary". The executable is therefore covered by this License.
XSection 6 states terms for distribution of such executables.
X
X When a "work that uses the Library" uses material from a header file
Xthat is part of the Library, the object code for the work may be a
Xderivative work of the Library even though the source code is not.
XWhether this is true is especially significant if the work can be
Xlinked without the Library, or if the work is itself a library. The
Xthreshold for this to be true is not precisely defined by law.
X
X If such an object file uses only numerical parameters, data
Xstructure layouts and accessors, and small macros and small inline
Xfunctions (ten lines or less in length), then the use of the object
Xfile is unrestricted, regardless of whether it is legally a derivative
Xwork. (Executables containing this object code plus portions of the
XLibrary will still fall under Section 6.)
X
X Otherwise, if the work is a derivative of the Library, you may
Xdistribute the object code for the work under the terms of Section 6.
XAny executables containing that work also fall under Section 6,
Xwhether or not they are linked directly with the Library itself.
X
X 6. As an exception to the Sections above, you may also compile or
Xlink a "work that uses the Library" with the Library to produce a
Xwork containing portions of the Library, and distribute that work
Xunder terms of your choice, provided that the terms permit
Xmodification of the work for the customer's own use and reverse
Xengineering for debugging such modifications.
X
X You must give prominent notice with each copy of the work that the
XLibrary is used in it and that the Library and its use are covered by
Xthis License. You must supply a copy of this License. If the work
Xduring execution displays copyright notices, you must include the
Xcopyright notice for the Library among them, as well as a reference
Xdirecting the user to the copy of this License. Also, you must do one
Xof these things:
X
X a) Accompany the work with the complete corresponding
X machine-readable source code for the Library including whatever
X changes were used in the work (which must be distributed under
X Sections 1 and 2 above); and, if the work is an executable linked
X with the Library, with the complete machine-readable "work that
X uses the Library", as object code and/or source code, so that the
X user can modify the Library and then relink to produce a modified
X executable containing the modified Library. (It is understood
X that the user who changes the contents of definitions files in the
X Library will not necessarily be able to recompile the application
X to use the modified definitions.)
X
X b) Accompany the work with a written offer, valid for at
X least three years, to give the same user the materials
X specified in Subsection 6a, above, for a charge no more
X than the cost of performing this distribution.
X
X c) If distribution of the work is made by offering access to copy
X from a designated place, offer equivalent access to copy the above
X specified materials from the same place.
X
X d) Verify that the user has already received a copy of these
X materials or that you have already sent this user a copy.
X
X For an executable, the required form of the "work that uses the
XLibrary" must include any data and utility programs needed for
Xreproducing the executable from it. However, as a special exception,
Xthe source code distributed need not include anything that is normally
Xdistributed (in either source or binary form) with the major
Xcomponents (compiler, kernel, and so on) of the operating system on
Xwhich the executable runs, unless that component itself accompanies
Xthe executable.
X
X It may happen that this requirement contradicts the license
Xrestrictions of other proprietary libraries that do not normally
Xaccompany the operating system. Such a contradiction means you cannot
Xuse both them and the Library together in an executable that you
Xdistribute.
X
X 7. You may place library facilities that are a work based on the
XLibrary side-by-side in a single library together with other library
Xfacilities not covered by this License, and distribute such a combined
Xlibrary, provided that the separate distribution of the work based on
Xthe Library and of the other library facilities is otherwise
Xpermitted, and provided that you do these two things:
X
X a) Accompany the combined library with a copy of the same work
X based on the Library, uncombined with any other library
X facilities. This must be distributed under the terms of the
X Sections above.
X
X b) Give prominent notice with the combined library of the fact
X that part of it is a work based on the Library, and explaining
X where to find the accompanying uncombined form of the same work.
X
X 8. You may not copy, modify, sublicense, link with, or distribute
Xthe Library except as expressly provided under this License. Any
Xattempt otherwise to copy, modify, sublicense, link with, or
Xdistribute the Library is void, and will automatically terminate your
Xrights under this License. However, parties who have received copies,
Xor rights, from you under this License will not have their licenses
Xterminated so long as such parties remain in full compliance.
X
X 9. You are not required to accept this License, since you have not
Xsigned it. However, nothing else grants you permission to modify or
Xdistribute the Library or its derivative works. These actions are
Xprohibited by law if you do not accept this License. Therefore, by
Xmodifying or distributing the Library (or any work based on the
XLibrary), you indicate your acceptance of this License to do so, and
Xall its terms and conditions for copying, distributing or modifying
Xthe Library or works based on it.
X
X 10. Each time you redistribute the Library (or any work based on the
XLibrary), the recipient automatically receives a license from the
Xoriginal licensor to copy, distribute, link with or modify the Library
Xsubject to these terms and conditions. You may not impose any further
Xrestrictions on the recipients' exercise of the rights granted herein.
XYou are not responsible for enforcing compliance by third parties to
Xthis License.
X
X 11. If, as a consequence of a court judgment or allegation of patent
Xinfringement or for any other reason (not limited to patent issues),
Xconditions are imposed on you (whether by court order, agreement or
Xotherwise) that contradict the conditions of this License, they do not
Xexcuse you from the conditions of this License. If you cannot
Xdistribute so as to satisfy simultaneously your obligations under this
XLicense and any other pertinent obligations, then as a consequence you
Xmay not distribute the Library at all. For example, if a patent
Xlicense would not permit royalty-free redistribution of the Library by
Xall those who receive copies directly or indirectly through you, then
Xthe only way you could satisfy both it and this License would be to
Xrefrain entirely from distribution of the Library.
X
XIf any portion of this section is held invalid or unenforceable under any
Xparticular circumstance, the balance of the section is intended to apply,
Xand the section as a whole is intended to apply in other circumstances.
X
XIt is not the purpose of this section to induce you to infringe any
Xpatents or other property right claims or to contest validity of any
Xsuch claims; this section has the sole purpose of protecting the
Xintegrity of the free software distribution system which is
Ximplemented by public license practices. Many people have made
Xgenerous contributions to the wide range of software distributed
Xthrough that system in reliance on consistent application of that
Xsystem; it is up to the author/donor to decide if he or she is willing
Xto distribute software through any other system and a licensee cannot
Ximpose that choice.
X
XThis section is intended to make thoroughly clear what is believed to
Xbe a consequence of the rest of this License.
X
X 12. If the distribution and/or use of the Library is restricted in
Xcertain countries either by patents or by copyrighted interfaces, the
Xoriginal copyright holder who places the Library under this License may add
Xan explicit geographical distribution limitation excluding those countries,
Xso that distribution is permitted only in or among countries not thus
Xexcluded. In such case, this License incorporates the limitation as if
Xwritten in the body of this License.
X
X 13. The Free Software Foundation may publish revised and/or new
Xversions of the Library General Public License from time to time.
XSuch new versions will be similar in spirit to the present version,
Xbut may differ in detail to address new problems or concerns.
X
XEach version is given a distinguishing version number. If the Library
Xspecifies a version number of this License which applies to it and
X"any later version", you have the option of following the terms and
Xconditions either of that version or of any later version published by
Xthe Free Software Foundation. If the Library does not specify a
Xlicense version number, you may choose any version ever published by
Xthe Free Software Foundation.
X
X 14. If you wish to incorporate parts of the Library into other free
Xprograms whose distribution conditions are incompatible with these,
Xwrite to the author to ask for permission. For software which is
Xcopyrighted by the Free Software Foundation, write to the Free
XSoftware Foundation; we sometimes make exceptions for this. Our
Xdecision will be guided by the two goals of preserving the free status
Xof all derivatives of our free software and of promoting the sharing
Xand reuse of software generally.
X
X NO WARRANTY
X
X 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
XWARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
XEXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
XOTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
XKIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
XIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
XPURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
XLIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
XTHE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
X
X 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
XWRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
XAND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
XFOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
XCONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
XLIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
XRENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
XFAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
XSUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
XDAMAGES.
X
X END OF TERMS AND CONDITIONS
X
X Appendix: How to Apply These Terms to Your New Libraries
X
X If you develop a new library, and you want it to be of the greatest
Xpossible use to the public, we recommend making it free software that
Xeveryone can redistribute and change. You can do so by permitting
Xredistribution under these terms (or, alternatively, under the terms of the
Xordinary General Public License).
X
X To apply these terms, attach the following notices to the library. It is
Xsafest to attach them to the start of each source file to most effectively
Xconvey the exclusion of warranty; and each file should have at least the
X"copyright" line and a pointer to where the full notice is found.
X
X <one line to give the library's name and a brief idea of what it does.>
X Copyright (C) <year> <name of author>
X
X This library is free software; you can redistribute it and/or
X modify it under the terms of the GNU Library General Public
X License as published by the Free Software Foundation; either
X version 2 of the License, or (at your option) any later version.
X
X This library is distributed in the hope that it will be useful,
X but WITHOUT ANY WARRANTY; without even the implied warranty of
X MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
X Library General Public License for more details.
X
X You should have received a copy of the GNU Library General Public
X License along with this library; if not, write to the Free
X Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X
XAlso add information on how to contact you by electronic and paper mail.
X
XYou should also get your employer (if you work as a programmer) or your
Xschool, if any, to sign a "copyright disclaimer" for the library, if
Xnecessary. Here is a sample; alter the names:
X
X Yoyodyne, Inc., hereby disclaims all copyright interest in the
X library `Frob' (a library for tweaking knobs) written by James Random Hacker.
X
X <signature of Ty Coon>, 1 April 1990
X Ty Coon, President of Vice
X
XThat's all there is to it!
Spam_Animals
chmod 0444 COPYING || echo "restore of COPYING fails"
sed 's/^X//' << 'Spam_Animals' > Makefile &&
X#
X# Copyright 1994, John F. Haugh II
X#
X# This software is derived from the Shadow Password Suite, version 3.3.2.
X# No portion of this comment block or copyright statement may be altered
X# without the written permission of the copyright holder.
X#
X# This library is free software; you can redistribute it and/or modify
X# it under the terms of the GNU Library General Public License as
X# published by the Free Software Foundation; either version 2 of the
X# License, or (at your option) any later version.
X#
X# This library is distributed in the hope that it will be useful,
X# but WITHOUT ANY WARRANTY; without even the implied warranty of
X# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
X# GNU Library General Public License for more details.
X#
X# You should have received a copy of the GNU Library General Public
X# License along with this program; if not, write to the Free Software
X# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X#
X# @(#)Makefile 1.1 12:22:44 13 Feb 1994 (GNU Shadow Library Suite)
X#
XSHELL = /bin/sh
X
X# Pick your favorite C compiler and tags command
XCC = gcc
XTAGS = ctags
X
X# Pick the features you want.
XDEF_NIS = -DUSE_NIS
XDEF_NDBM = -DNDBM
X# DEBUG = -g
XOPTIM = -O
XLOCAL = -ansi
XINCLUDES = -I.
X
XCFLAGS = $(DEF_NIS) $(DEF_NDBM) $(DEBUG) $(OPTIM) $(LOCAL) $(INCLUDES)
X
X# Do you have to do ranlib?
XRANLIB = ranlib
X# RANLIB = echo
X
XDEST_INCLUDE_DIR = /usr/include
X
X# Define your library name and directory
XLIBDIR = /lib
XLIBSEC = libsec.a
X
X# Some flags for making the shar file
XSHARFLAGS = -D -c -dSpam_Animals
X
X# Rules for .L (lint) files.
X.SUFFIXES: .L
XLINT = lint
XLINTFLAGS = $(OS) -Dlint
X
X.c.L:
X $(LINT) -pxu $(LINTFLAGS) $*.c > $*.L
X
XALLSRCS = gshadow.c shadow.c
X
XFILES = COPYING Makefile shadow.c shadow.h gshadow.c gshadow.h
X
Xall: $(LIBSEC)
X
X.PRECIOUS: $(LIBSEC)
X
X$(LIBSEC): \
X $(LIBSEC)(shadow.o) \
X $(LIBSEC)(gshadow.o)
X $(RANLIB) $(LIBSEC)
X
Xsave:
X [ ! -d save ] && mkdir save
X -cp $(LIBDIR)/$(LIBSEC) save
X -cp $(DEST_INCLUDE_DIR)/shadow.h $(DEST_INCLUDE_DIR)/gshadow.h save
X
Xrestore:
X [ -d save ]
X -(cd save ; cp shadow.h gshadow.h $(DEST_INCLUDE_DIR) )
X -(cd save ; cp $(LIBSEC) $(LIBDIR) )
X
Xinstall: all
X cp shadow.h gshadow.h $(DEST_INCLUDE_DIR)
X cp $(LIBSEC) $(LIBDIR)
X chown bin $(LIBDIR)/$(LIBSEC) $(DEST_INCLUDE_DIR)/shadow.h \
X $(DEST_INCLUDE_DIR)/gshadow.h
X chgrp bin $(LIBDIR)/$(LIBSEC) $(DEST_INCLUDE_DIR)/shadow.h \
X $(DEST_INCLUDE_DIR)/gshadow.h
X chmod 444 $(DEST_INCLUDE_DIR)/shadow.h $(DEST_INCLUDE_DIR)/gshadow.h
X chmod 555 $(LIBDIR)/$(LIBSEC)
X
Xlint: $(ALLSRCS:.c=.L)
X
Xtags: $(ALLSRCS)
X $(TAGS) $(ALLSRCS)
X
Xlibshadow.a(shadow.o): shadow.h
Xlibshadow.a(gshadow.o): gshadow.h
X
Xclean:
X -rm -f *.o
X
Xclobber: clean
X -rm -f $(LIBSEC)
X
Xshar: gnu-shadow-lib.shar
X
Xgnu-shadow-lib.shar: $(FILES)
X shar $(SHARFLAGS) $(FILES) > gnu-shadow-lib.shar
Spam_Animals
chmod 0444 Makefile || echo "restore of Makefile fails"
sed 's/^X//' << 'Spam_Animals' > shadow.c &&
X/*
X * Copyright 1989 - 1994, John F. Haugh II
X * All rights reserved.
X *
X * This software is derived from the Shadow Password Suite, version 3.3.2.
X * No portion of this comment block or copyright statement may be altered
X * without the written permission of the copyright holder.
X *
X * This library is free software; you can redistribute it and/or modify
X * it under the terms of the GNU Library General Public License as
X * published by the Free Software Foundation; either version 2 of the
X * License, or (at your option) any later version.
X *
X * This library is distributed in the hope that it will be useful,
X * but WITHOUT ANY WARRANTY; without even the implied warranty of
X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
X * GNU Library General Public License for more details.
X *
X * You should have received a copy of the GNU Library General Public
X * License along with this program; if not, write to the Free Software
X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X */
X
X
X#ifndef lint
Xstatic char copyright[] = "@(#)Copyright 1989 - 1994, John F. Haugh II";
Xstatic char sccsid[] = "@(#)shadow.c 1.1 12:23:06 13 Feb 1994 (GNU Shadow Library Suite)";
X#endif
X
X#include <sys/types.h>
X#include <stdio.h>
X#include <stdlib.h>
X#include <string.h>
X#include <memory.h>
X#include "shadow.h"
X
X#ifdef NDBM
X#include <ndbm.h>
X#include <fcntl.h>
XDBM *sp_dbm;
Xint sp_dbm_mode = -1;
Xstatic int dbmopened;
Xstatic int dbmerror;
X#endif
X
X#ifdef USE_NIS
Xstatic int nis_used;
Xstatic int nis_ignore;
Xstatic enum { native, start, middle, native2 } nis_state;
Xstatic int nis_bound;
Xstatic char *nis_domain;
Xstatic char *nis_key;
Xstatic int nis_keylen;
Xstatic char *nis_val;
Xstatic int nis_vallen;
X#define IS_NISCHAR(c) ((c)=='+')
X#endif
X
Xstatic FILE *shadow;
Xstatic char spwbuf[BUFSIZ];
Xstatic struct spwd spwd;
X
X#define FIELDS 9
X#define OFIELDS 5
X
X#ifdef USE_NIS
X
X/*
X * __setspNIS - turn on or off NIS searches
X */
X
Xvoid
X__setspNIS (flag)
Xint flag;
X{
X nis_ignore = ! flag;
X
X if (nis_ignore)
X nis_used = 0;
X}
X
X/*
X * bind_nis - bind to NIS server
X */
X
Xstatic int
Xbind_nis ()
X{
X if (yp_get_default_domain (&nis_domain))
X return -1;
X
X nis_bound = 1;
X return 0;
X}
X#endif
X
X/*
X * setspent - initialize access to shadow text and DBM files
X */
X
Xvoid
Xsetspent ()
X{
X if (shadow)
X rewind (shadow);
X else
X shadow = fopen (SHADOW, "r");
X
X#ifdef USE_NIS
X nis_state = native;
X#endif
X
X /*
X * Attempt to open the DBM files if they have never been opened
X * and an error has never been returned.
X */
X
X#ifdef NDBM
X if (! dbmerror && ! dbmopened) {
X int mode;
X char dbmfiles[BUFSIZ];
X
X strcpy (dbmfiles, SHADOW);
X strcat (dbmfiles, ".pag");
X
X if (sp_dbm_mode == -1)
X mode = O_RDWR;
X else
X mode = (sp_dbm_mode == O_RDWR) ? O_RDWR:O_RDONLY;
X
X if (! (sp_dbm = dbm_open (SHADOW, mode, 0)))
X dbmerror = 1;
X else
X dbmopened = 1;
X }
X#endif
X}
X
X/*
X * endspent - terminate access to shadow text and DBM files
X */
X
Xvoid
Xendspent ()
X{
X if (shadow)
X (void) fclose (shadow);
X
X shadow = (FILE *) 0;
X#ifdef NDBM
X if (dbmopened && sp_dbm) {
X dbm_close (sp_dbm);
X sp_dbm = 0;
X }
X dbmopened = 0;
X dbmerror = 0;
X#endif
X}
X
X/*
X * sgetspent - convert string in shadow file format to (struct spwd *)
X */
X
Xstruct spwd *
Xsgetspent (string)
X#ifdef __STDC__
Xconst
X#endif
Xchar *string;
X{
X char *fields[FIELDS];
X char *cp;
X char *cpp;
X int atoi ();
X long atol ();
X int i;
X
X /*
X * Copy string to local buffer. It has to be tokenized and we
X * have to do that to our private copy.
X */
X
X strncpy (spwbuf, string, BUFSIZ-1);
X spwbuf[BUFSIZ-1] = '\0';
X
X if (cp = strrchr (spwbuf, '\n'))
X *cp = '\0';
X
X /*
X * Tokenize the string into colon separated fields. Allow up to
X * FIELDS different fields.
X */
X
X for (cp = spwbuf, i = 0;*cp && i < FIELDS;i++) {
X fields[i] = cp;
X while (*cp && *cp != ':')
X cp++;
X
X if (*cp)
X *cp++ = '\0';
X }
X
X /*
X * It is acceptable for the last SVR4 field to be blank. This
X * results in the loop being terminated early. In which case,
X * we just make the last field be blank and be done with it.
X */
X
X if (i == (FIELDS-1))
X fields[i++] = cp;
X
X if ((cp && *cp) || (i != FIELDS && i != OFIELDS))
X return 0;
X
X /*
X * Start populating the structure. The fields are all in
X * static storage, as is the structure we pass back. If we
X * ever see a name with '+' as the first character, we try
X * to turn on NIS processing.
X */
X
X spwd.sp_namp = fields[0];
X#ifdef USE_NIS
X if (IS_NISCHAR (fields[0][0]))
X nis_used = 1;
X#endif
X spwd.sp_pwdp = fields[1];
X
X /*
X * Get the last changed date. For all of the integer fields,
X * we check for proper format. It is an error to have an
X * incorrectly formatted number, unless we are using NIS.
X */
X
X if ((spwd.sp_lstchg = strtol (fields[2], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_lstchg = -1;
X#else
X return 0;
X#endif
X } else if (fields[2][0] == '\0')
X spwd.sp_lstchg = -1;
X
X /*
X * Get the minimum period between password changes.
X */
X
X if ((spwd.sp_min = strtol (fields[3], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_min = -1;
X#else
X return 0;
X#endif
X } else if (fields[3][0] == '\0')
X spwd.sp_min = -1;
X
X /*
X * Get the maximum number of days a password is valid.
X */
X
X if ((spwd.sp_max = strtol (fields[4], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_max = -1;
X#else
X return 0;
X#endif
X } else if (fields[4][0] == '\0')
X spwd.sp_max = -1;
X
X /*
X * If there are only OFIELDS fields (this is a SVR3.2 /etc/shadow
X * formatted file), initialize the other field members to -1.
X */
X
X if (i == OFIELDS) {
X spwd.sp_warn = spwd.sp_inact = spwd.sp_expire =
X spwd.sp_flag = -1;
X
X return &spwd;
X }
X
X /*
X * The rest of the fields are mandatory for SVR4, but optional
X * for anything else. However, if one is present the others
X * must be as well.
X */
X
X /*
X * Get the number of days of password expiry warning.
X */
X
X if ((spwd.sp_warn = strtol (fields[5], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_warn = -1;
X#else
X return 0;
X#endif
X } else if (fields[5][0] == '\0')
X spwd.sp_warn = -1;
X
X /*
X * Get the number of days of inactivity before an account is
X * disabled.
X */
X
X if ((spwd.sp_inact = strtol (fields[6], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_inact = -1;
X#else
X return 0;
X#endif
X } else if (fields[6][0] == '\0')
X spwd.sp_inact = -1;
X
X /*
X * Get the number of days after the epoch before the account is
X * set to expire.
X */
X
X if ((spwd.sp_expire = strtol (fields[7], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_expire = -1;
X#else
X return 0;
X#endif
X } else if (fields[7][0] == '\0')
X spwd.sp_expire = -1;
X
X /*
X * This field is reserved for future use. But it isn't supposed
X * to have anything other than a valid integer in it.
X */
X
X if ((spwd.sp_flag = strtol (fields[8], &cpp, 10)) == 0 && *cpp) {
X#ifdef USE_NIS
X if (! nis_used)
X return 0;
X else
X spwd.sp_flag = -1;
X#else
X return 0;
X#endif
X } else if (fields[8][0] == '\0')
X spwd.sp_flag = -1;
X
X return (&spwd);
X}
X
X/*
X * fgetspent - get an entry from a /etc/shadow formatted stream
X */
X
Xstruct spwd
X*fgetspent (fp)
XFILE *fp;
X{
X char buf[BUFSIZ];
X char *cp;
X
X if (! fp)
X return (0);
X
X#ifdef USE_NIS
X while (fgets (buf, sizeof buf, fp) != (char *) 0)
X#else
X if (fgets (buf, sizeof buf, fp) != (char *) 0)
X#endif
X {
X if (cp = strchr (buf, '\n'))
X *cp = '\0';
X#ifdef USE_NIS
X if (nis_ignore && IS_NISCHAR (buf[0]))
X continue;
X#endif
X return (sgetspent (buf));
X }
X return 0;
X}
X
X/*
X * getspent - get a (struct spwd *) from the current shadow file
X */
X
Xstruct spwd
X*getspent ()
X{
X#ifdef USE_NIS
X int nis_1_user = 0;
X struct spwd *val;
X char buf[BUFSIZ];
X#endif
X if (! shadow)
X setspent ();
X
X#ifdef USE_NIS
Xagain:
X /*
X * See if we are reading from the local file.
X */
X
X if (nis_state == native || nis_state == native2) {
X
X /*
X * Get the next entry from the shadow file. Return NULL
X * right away if there is none.
X */
X
X if (! (val = fgetspent (shadow)))
X return 0;
X
X /*
X * If this entry began with a NIS escape character, we have
X * to see if this is just a single user, or if the entire
X * map is being asked for.
X */
X
X if (IS_NISCHAR (val->sp_namp[0])) {
X if (val->sp_namp[1])
X nis_1_user = 1;
X else
X nis_state = start;
X }
X
X /*
X * If this isn't a NIS user and this isn't an escape to go
X * use a NIS map, it must be a regular local user.
X */
X
X if (nis_1_user == 0 && nis_state != start)
X return val;
X
X /*
X * If this is an escape to use an NIS map, switch over to
X * that bunch of code.
X */
X
X if (nis_state == start)
X goto again;
X
X /*
X * NEEDSWORK. Here we substitute pieces-parts of this entry.
X */
X
X return 0;
X } else {
X if (nis_bound == 0) {
X if (bind_nis ()) {
X nis_state = native2;
X goto again;
X }
X }
X if (nis_state == start) {
X if (yp_first (nis_domain, "shadow.bynam", &nis_key,
X &nis_keylen, &nis_val, &nis_vallen)) {
X nis_state = native2;
X goto again;
X }
X nis_state = middle;
X } else if (nis_state == middle) {
X if (yp_next (nis_domain, "shadow.bynam", nis_key,
X nis_keylen, &nis_key, &nis_keylen,
X &nis_val, &nis_vallen)) {
X nis_state = native2;
X goto again;
X }
X }
X return sgetspent (nis_val);
X }
X#else
X return (fgetspent (shadow));
X#endif
X}
X
X/*
X * getspnam - get a shadow entry by name
X */
X
Xstruct spwd
X*getspnam (name)
X#if __STDC__
Xconst
X#endif
Xchar *name;
X{
X struct spwd *sp;
X#ifdef NDBM
X datum key;
X datum content;
X#endif
X#ifdef USE_NIS
X char buf[BUFSIZ];
X static char save_name[16];
X int nis_disabled = 0;
X#endif
X
X setspent ();
X
X#ifdef NDBM
X
X /*
X * If the DBM file are now open, create a key for this UID and
X * try to fetch the entry from the database. A matching record
X * will be unpacked into a static structure and returned to
X * the user.
X */
X
X if (dbmopened) {
X key.dsize = strlen (name);
X key.dptr = name;
X
X content = dbm_fetch (sp_dbm, key);
X if (content.dptr != 0) {
X memcpy (spwbuf, content.dptr, content.dsize);
X spw_unpack (spwbuf, content.dsize, &spwd);
X return &spwd;
X }
X }
X#endif
X#ifdef USE_NIS
X /*
X * Search the shadow.byname map for this user.
X */
X
X if (! nis_ignore && ! nis_bound)
X bind_nis ();
X
X if (! nis_ignore && nis_bound) {
X char *cp;
X
X if (yp_match (nis_domain, "shadow.byname", name,
X strlen (name), &nis_val, &nis_vallen) == 0) {
X
X if (cp = strchr (nis_val, '\n'))
X *cp = '\0';
X
X nis_state = middle;
X if (sp = sgetspent (nis_val)) {
X strcpy (save_name, sp->sp_namp);
X nis_key = save_name;
X nis_keylen = strlen (save_name);
X }
X return (sgetspent (nis_val));
X } else
X nis_state = native2;
X }
X#endif
X#ifdef USE_NIS
X /*
X * NEEDSWORK -- this is a mess, and it is the same mess in the
X * other three files. I can't just blindly turn off NIS because
X * this might be the first pass through the local files. In
X * that case, I never discover that NIS is present.
X */
X
X if (nis_used) {
X nis_ignore++;
X nis_disabled++;
X }
X#endif
X while ((sp = getspent ()) != (struct spwd *) 0) {
X if (strcmp (name, sp->sp_namp) == 0)
X break;
X }
X#ifdef USE_NIS
X if (nis_disabled)
X nis_ignore--;
X#endif
X return (sp);
X}
X
Xint
Xputspent (sp, fp)
X#if __STDC__
Xconst
X#endif
Xstruct spwd *sp;
XFILE *fp;
X{
X int errors = 0;
X
X if (! fp || ! sp)
X return -1;
X
X if (fprintf (fp, "%s:%s:", sp->sp_namp, sp->sp_pwdp) < 0)
X errors++;
X
X if (sp->sp_lstchg != -1) {
X if (fprintf (fp, "%ld:", sp->sp_lstchg) < 0)
X errors++;
X } else if (putc (':', fp) == EOF)
X errors++;
X
X if (sp->sp_min != -1) {
X if (fprintf (fp, "%ld:", sp->sp_min) < 0)
X errors++;
X } else if (putc (':', fp) == EOF)
X errors++;
X
X if (sp->sp_max != -1) {
X if (fprintf (fp, "%ld:", sp->sp_max) < 0)
X errors++;
X } else if (putc (':', fp) == EOF)
X errors++;
X
X if (sp->sp_warn != -1) {
X if (fprintf (fp, "%ld:", sp->sp_warn) < 0)
X errors++;
X } else if (putc (':', fp) == EOF)
X errors++;
X
X if (sp->sp_inact != -1) {
X if (fprintf (fp, "%ld:", sp->sp_inact) < 0)
X errors++;
X } else if (putc (':', fp) == EOF)
X errors++;
X
X if (sp->sp_expire != -1) {
X if (fprintf (fp, "%ld:", sp->sp_expire) < 0)
X errors++;
X } else if (putc (':', fp) == EOF)
X errors++;
X
X if (sp->sp_flag != -1) {
X if (fprintf (fp, "%ld", sp->sp_flag) < 0)
X errors++;
X }
X if (putc ('\n', fp) == EOF)
X errors++;
X
X if (errors)
X return -1;
X else
X return 0;
X}
Spam_Animals
chmod 0444 shadow.c || echo "restore of shadow.c fails"
sed 's/^X//' << 'Spam_Animals' > shadow.h &&
X/*
X * Copyright 1988 - 1994, John F. Haugh II
X * All rights reserved.
X *
X * This software is derived from the Shadow Password Suite, version 3.3.2.
X * No portion of this comment block or copyright statement may be altered
X * without the written permission of the copyright holder.
X *
X * This library is free software; you can redistribute it and/or modify
X * it under the terms of the GNU Library General Public License as
X * published by the Free Software Foundation; either version 2 of the
X * License, or (at your option) any later version.
X *
X * This library is distributed in the hope that it will be useful,
X * but WITHOUT ANY WARRANTY; without even the implied warranty of
X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
X * GNU Library General Public License for more details.
X *
X * You should have received a copy of the GNU Library General Public
X * License along with this program; if not, write to the Free Software
X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X */
X
X#ifndef _H_SHADOW
X#define _H_SHADOW
X
X/*
X * This information is not derived from AT&T licensed sources. Posted
X * to the USENET 11/88, and updated 11/90 with information from SVR4.
X *
X * @(#)shadow.h 1.1 12:23:13 13 Feb 1994 (GNU Shadow Library Suite)
X */
X
X/*
X * Shadow password security file structure.
X */
X
Xstruct spwd {
X char *sp_namp; /* login name */
X char *sp_pwdp; /* encrypted password */
X time_t sp_lstchg; /* date of last change */
X time_t sp_min; /* minimum number of days between changes */
X time_t sp_max; /* maximum number of days between changes */
X time_t sp_warn; /* number of days of warning before password
X expires */
X time_t sp_inact; /* number of days after password expires
X until the account becomes unusable. */
X time_t sp_expire; /* days since 1/1/70 until account expires */
X unsigned long sp_flag; /* reserved for future use */
X};
X
X/*
X * Shadow password security file functions.
X */
X
X#if defined(__STDC__)
Xstruct spwd *getspent (void);
Xstruct spwd *getspnam (const char *);
Xstruct spwd *sgetspent (const char *);
Xstruct spwd *fgetspent (FILE *);
Xvoid setspent (void);
Xvoid endspent (void);
Xint putspent (const struct spwd *, FILE *);
X#else
Xstruct spwd *getspent ();
Xstruct spwd *getspnam ();
Xstruct spwd *sgetspent ();
Xstruct spwd *fgetspent ();
Xvoid setspent ();
Xvoid endspent ();
Xint putspent ();
X#endif
X
X#define SHADOW "/etc/shadow"
X#endif
Spam_Animals
chmod 0444 shadow.h || echo "restore of shadow.h fails"
sed 's/^X//' << 'Spam_Animals' > gshadow.c &&
X/*
X * Copyright 1990 - 1994, John F. Haugh II
X * All rights reserved.
X *
X * This software is derived from the Shadow Password Suite, version 3.3.2.
X * No portion of this comment block or copyright statement may be altered
X * without the written permission of the copyright holder.
X *
X * This library is free software; you can redistribute it and/or modify
X * it under the terms of the GNU Library General Public License as
X * published by the Free Software Foundation; either version 2 of the
X * License, or (at your option) any later version.
X *
X * This library is distributed in the hope that it will be useful,
X * but WITHOUT ANY WARRANTY; without even the implied warranty of
X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
X * GNU Library General Public License for more details.
X *
X * You should have received a copy of the GNU Library General Public
X * License along with this program; if not, write to the Free Software
X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X */
X
X#ifndef lint
Xstatic char copyright[] = "@(#)Copyright 1990 - 1994, John F. Haugh II";
Xstatic char sccsid[] = "@(#)gshadow.c 1.1 12:22:51 13 Feb 1994 (GNU Shadow Library Suite)";
X#endif
X
X#include <stdio.h>
X#include <gshadow.h>
X#include <string.h>
X#include <memory.h>
X
X#ifdef NDBM
X#include <ndbm.h>
X#include <fcntl.h>
XDBM *sg_dbm;
Xint sg_dbm_mode = -1;
Xstatic int dbmopened;
Xstatic int dbmerror;
X#endif
X
X#define MAXMEM 1024
X
X#ifndef GSHADOW
X#define GSHADOW "/etc/gshadow"
X#endif
X
Xstatic FILE *shadow;
Xstatic char *sgrpfile = GSHADOW ;
Xstatic char sgrbuf[BUFSIZ*4];
Xstatic char *members[MAXMEM+1];
Xstatic char *admins[MAXMEM+1];
Xstatic struct sgrp sgroup;
X
X#define FIELDS 4
X
X#ifdef USE_NIS
Xstatic int nis_used;
Xstatic int nis_ignore;
Xstatic enum { native, start, middle, native2 } nis_state;
Xstatic int nis_bound;
Xstatic char *nis_domain;
Xstatic char *nis_key;
Xstatic int nis_keylen;
Xstatic char *nis_val;
Xstatic int nis_vallen;
X#define IS_NISCHAR(c) ((c)=='+')
X#endif
X
X#ifdef USE_NIS
X
X/*
X * __setsgNIS - turn on or off NIS searches
X */
X
Xvoid
X__setsgNIS (flag)
Xint flag;
X{
X nis_ignore = ! flag;
X
X if (nis_ignore)
X nis_used = 0;
X}
X
X/*
X * bind_nis - bind to NIS server
X */
X
Xstatic int
Xbind_nis ()
X{
X if (yp_get_default_domain (&nis_domain))
X return -1;
X
X nis_bound = 1;
X return 0;
X}
X#endif
X
Xstatic char **
Xlist (s, l)
Xchar *s;
Xchar **l;
X{
X int nmembers = 0;
X
X while (s && *s) {
X l[nmembers++] = s;
X if (s = strchr (s, ','))
X *s++ = '\0';
X }
X l[nmembers] = (char *) 0;
X return l;
X}
X
Xvoid
Xsetsgent ()
X{
X#ifdef NDBM
X int mode;
X#endif /* NDBM */
X
X#ifdef USE_NIS
X nis_state = native;
X#endif
X if (shadow)
X rewind (shadow);
X else
X shadow = fopen (GSHADOW, "r");
X
X /*
X * Attempt to open the DBM files if they have never been opened
X * and an error has never been returned.
X */
X
X#ifdef NDBM
X if (! dbmerror && ! dbmopened) {
X char dbmfiles[BUFSIZ];
X
X strcpy (dbmfiles, sgrpfile);
X strcat (dbmfiles, ".pag");
X
X if (sg_dbm_mode == -1)
X mode = O_RDWR;
X else
X mode = (sg_dbm_mode == O_RDWR) ? O_RDWR:O_RDONLY;
X
X if (access (dbmfiles, 0) ||
X (! (sg_dbm = dbm_open (sgrpfile, mode, 0))))
X dbmerror = 1;
X else
X dbmopened = 1;
X }
X#endif /* NDBM */
X}
X
Xvoid
Xendsgent ()
X{
X if (shadow)
X (void) fclose (shadow);
X
X shadow = (FILE *) 0;
X#ifdef NDBM
X if (dbmopened && sg_dbm) {
X dbm_close (sg_dbm);
X dbmopened = 0;
X sg_dbm = 0;
X }
X#endif
X}
X
Xstruct sgrp *
Xsgetsgent (string)
X#if defined(__STDC__)
Xconst
X#endif
Xchar *string;
X{
X char *fields[FIELDS];
X char *cp;
X int atoi ();
X long atol ();
X int i;
X
X strncpy (sgrbuf, string, (int) sizeof sgrbuf - 1);
X sgrbuf[sizeof sgrbuf - 1] = '\0';
X
X if (cp = strrchr (sgrbuf, '\n'))
X *cp = '\0';
X
X /*
X * There should be exactly 4 colon separated fields. Find
X * all 4 of them and save the starting addresses in fields[].
X */
X
X for (cp = sgrbuf, i = 0;i < FIELDS && cp;i++) {
X fields[i] = cp;
X if (cp = strchr (cp, ':'))
X *cp++ = '\0';
X }
X
X /*
X * If there was an extra field somehow, or perhaps not enough,
X * the line is invalid.
X */
X
X if (cp || i != FIELDS)
X#ifdef USE_NIS
X if (! IS_NISCHAR (fields[0][0]))
X return 0;
X else
X nis_used = 1;
X#else
X return 0;
X#endif
X
X sgroup.sg_name = fields[0];
X sgroup.sg_passwd = fields[1];
X sgroup.sg_adm = list (fields[2], admins);
X sgroup.sg_mem = list (fields[3], members);
X
X return &sgroup;
X}
X
Xstruct sgrp
X*fgetsgent (fp)
XFILE *fp;
X{
X char buf[sizeof sgrbuf];
X char *cp;
X
X if (! fp)
X return (0);
X
X#ifdef USE_NIS
X while (fgets (buf, sizeof buf, fp) != (char *) 0)
X#else
X if (fgets (buf, sizeof buf, fp) != (char *) 0)
X#endif
X {
X if (cp = strchr (buf, '\n'))
X *cp = '\0';
X#ifdef USE_NIS
X if (nis_ignore && IS_NISCHAR (buf[0]))
X continue;
X#endif
X return (sgetsgent (buf));
X }
X return 0;
X}
X
X/*
X * getsgent - get a single shadow group entry
X */
X
Xstruct sgrp
X*getsgent ()
X{
X#ifdef USE_NIS
X int nis_1_group = 0;
X struct sgrp *val;
X char buf[BUFSIZ];
X#endif
X if (! shadow)
X setsgent ();
X
X#ifdef USE_NIS
Xagain:
X /*
X * See if we are reading from the local file.
X */
X
X if (nis_state == native || nis_state == native2) {
X
X /*
X * Get the next entry from the shadow group file. Return
X * NULL right away if there is none.
X */
X
X if (! (val = fgetsgent (shadow)))
X return 0;
X
X /*
X * If this entry began with a NIS escape character, we have
X * to see if this is just a single group, or if the entire
X * map is being asked for.
X */
X
X if (IS_NISCHAR (val->sg_name[0])) {
X if (val->sg_name[1])
X nis_1_group = 1;
X else
X nis_state = start;
X }
X
X /*
X * If this isn't a NIS group and this isn't an escape to go
X * use a NIS map, it must be a regular local group.
X */
X
X if (nis_1_group == 0 && nis_state != start)
X return val;
X
X /*
X * If this is an escape to use an NIS map, switch over to
X * that bunch of code.
X */
X
X if (nis_state == start)
X goto again;
X
X /*
X * NEEDSWORK. Here we substitute pieces-parts of this entry.
X */
X
X return 0;
X } else {
X if (nis_bound == 0) {
X if (bind_nis ()) {
X nis_state = native2;
X goto again;
X }
X }
X if (nis_state == start) {
X if (yp_first (nis_domain, "gshadow.byname", &nis_key,
X &nis_keylen, &nis_val, &nis_vallen)) {
X nis_state = native2;
X goto again;
X }
X nis_state = middle;
X } else if (nis_state == middle) {
X if (yp_next (nis_domain, "gshadow.byname", nis_key,
X nis_keylen, &nis_key, &nis_keylen,
X &nis_val, &nis_vallen)) {
X nis_state = native2;
X goto again;
X }
X }
X return sgetsgent (nis_val);
X }
X#else
X return (fgetsgent (shadow));
X#endif
X}
X
X/*
X * getsgnam - get a shadow group entry by name
X */
X
Xstruct sgrp *
Xgetsgnam (name)
X#if defined(__STDC__)
Xconst
X#endif
Xchar *name;
X{
X struct sgrp *sgrp;
X#ifdef NDBM
X datum key;
X datum content;
X#endif
X#ifdef USE_NIS
X char buf[BUFSIZ];
X static char save_name[16];
X int nis_disabled = 0;
X#endif
X
X setsgent ();
X
X#ifdef NDBM
X
X /*
X * If the DBM file are now open, create a key for this group and
X * try to fetch the entry from the database. A matching record
X * will be unpacked into a static structure and returned to
X * the user.
X */
X
X if (dbmopened) {
X key.dsize = strlen (name);
X key.dptr = (void *) name;
X
X content = dbm_fetch (sg_dbm, key);
X if (content.dptr != 0) {
X memcpy (sgrbuf, content.dptr, content.dsize);
X sgroup.sg_mem = members;
X sgroup.sg_adm = admins;
X sgr_unpack (sgrbuf, content.dsize, &sgroup);
X return &sgroup;
X }
X }
X#endif
X#ifdef USE_NIS
X if (nis_used) {
Xagain:
X
X /*
X * Search the gshadow.byname map for this group.
X */
X
X if (! nis_bound)
X bind_nis ();
X
X if (nis_bound) {
X char *cp;
X
X if (yp_match (nis_domain, "gshadow.byname", name,
X strlen (name), &nis_val, &nis_vallen) == 0) {
X if (cp = strchr (nis_val, '\n'))
X *cp = '\0';
X
X nis_state = middle;
X if (sgrp = sgetsgent (nis_val)) {
X strcpy (save_name, sgrp->sg_name);
X nis_key = save_name;
X nis_keylen = strlen (save_name);
X }
X return sgrp;
X }
X }
X nis_state = native2;
X }
X#endif
X#ifdef USE_NIS
X if (nis_used) {
X nis_ignore++;
X nis_disabled++;
X }
X#endif
X while ((sgrp = getsgent ()) != (struct sgrp *) 0) {
X if (strcmp (name, sgrp->sg_name) == 0)
X break;
X }
X#ifdef USE_NIS
X nis_ignore--;
X#endif
X if (sgrp)
X return sgrp;
X return (0);
X}
X
Xint
Xputsgent (sgrp, fp)
X#if defined(__STDC__)
Xconst
X#endif
Xstruct sgrp *sgrp;
XFILE *fp;
X{
X char buf[sizeof sgrbuf];
X char *cp = buf;
X int i;
X
X if (! fp || ! sgrp)
X return -1;
X
X /*
X * Copy the group name and passwd.
X */
X
X strcpy (cp, sgrp->sg_name);
X cp += strlen (cp);
X *cp++ = ':';
X
X strcpy (cp, sgrp->sg_passwd);
X cp += strlen (cp);
X *cp++ = ':';
X
X /*
X * Copy the administrators, separating each from the other
X * with a ",".
X */
X
X for (i = 0;sgrp->sg_adm[i];i++) {
X if (i > 0)
X *cp++ = ',';
X
X strcpy (cp, sgrp->sg_adm[i]);
X cp += strlen (cp);
X }
X *cp++ = ':';
X
X /*
X * Now do likewise with the group members.
X */
X
X for (i = 0;sgrp->sg_mem[i];i++) {
X if (i > 0)
X *cp++ = ',';
X
X strcpy (cp, sgrp->sg_mem[i]);
X cp += strlen (cp);
X }
X *cp++ = '\n';
X *cp = '\0';
X
X /*
X * Output using the function which understands the line
X * continuation conventions.
X */
X
X return fputsx (buf, fp);
X}
Spam_Animals
chmod 0444 gshadow.c || echo "restore of gshadow.c fails"
sed 's/^X//' << 'Spam_Animals' > gshadow.h &&
X/*
X * Copyright 1988 - 1994, John F. Haugh II
X * All rights reserved.
X *
X * This software is derived from the Shadow Password Suite, version 3.3.2.
X * No portion of this comment block or copyright statement may be altered
X * without the written permission of the copyright holder.
X *
X * This library is free software; you can redistribute it and/or modify
X * it under the terms of the GNU Library General Public License as
X * published by the Free Software Foundation; either version 2 of the
X * License, or (at your option) any later version.
X *
X * This library is distributed in the hope that it will be useful,
X * but WITHOUT ANY WARRANTY; without even the implied warranty of
X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
X * GNU Library General Public License for more details.
X *
X * You should have received a copy of the GNU Library General Public
X * License along with this program; if not, write to the Free Software
X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X *
X * @(#)gshadow.h 1.1 12:22:59 13 Feb 1994 (GNU Shadow Library Suite)
X */
X
X#ifndef _H_GSHADOW
X#define _H_GSHADOW
X
X/*
X * Shadow group security file structure
X */
X
Xstruct sgrp {
X char *sg_name; /* group name */
X char *sg_passwd; /* group password */
X char **sg_adm; /* group administator list */
X char **sg_mem; /* group membership list */
X};
X
X/*
X * Shadow group security file functions.
X */
X
X#if defined(__STDC__)
Xstruct sgrp *getsgent (void);
Xstruct sgrp *getsgnam (const char *);
Xstruct sgrp *sgetsgent (const char *);
Xstruct sgrp *fgetsgent (FILE *);
Xvoid setsgent (void);
Xvoid endsgent (void);
Xint putsgent (const struct sgrp *, FILE *);
X#else
Xstruct sgrp *getsgent ();
Xstruct sgrp *getsgnam ();
Xstruct sgrp *sgetsgent ();
Xstruct sgrp *fgetsgent ();
Xvoid setsgent ();
Xvoid endsgent ();
Xint putsgent ();
X#endif
X
X#define GSHADOW "/etc/gshadow"
X#endif
Spam_Animals
chmod 0444 gshadow.h || echo "restore of gshadow.h fails"
exit 0
--
John F. Haugh II [ NRA-ILA ] [ Kill Barney ] !'s: ...!cs.utexas.edu!rpp386!jfh
Ma Bell: (512) 251-2151 [GOP][DoF #17][PADI][ENTJ] @'s: jfh@rpp386.cactus.org
There are three documents that run my life: The King James Bible, the United
States Constitution, and the UNIX System V Release 4 Programmer's Reference.
Reference in New Issue View Git Blame Copy Permalink