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History log of /src/usr.bin/chpass
RevisionDateAuthorComments
 1.16 25-Jun-2018  kamil Specify SANITIZER_RENAME_SYMBOL in chpass

Rename local versions of getpwent getpwnam getpwnam_r getpwuid getpwuid_r
(all of the symbols are namespaced) in order to remove symbol clash with
libc.

This program uses code directly from libc.
 1.15 28-May-2007  tls branches: 1.15.74;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.
 1.14 22-Jul-2003  lukem use CPPFLAGS.getpwent.c=... to set file-specific cpp flags
 1.13 05-Apr-2003  bouyer Build custom getpwent.o only if USE_YP==no. Otherwise, chpass will not
get the current passwd entry from NIS. Problem reported by Stephen M. Jone
on tech-net.
 1.12 18-Sep-2002  lukem makefile delint. use NETBSDSRCDIR as appropriate
 1.11 22-Mar-2002  thorpej branches: 1.11.2;
Split the notion of building Hesiod, Kerberos, S/key, and YP
infrastructure and using that infrastructure in programs.

* MKHESIOD, MKKERBEROS, MKSKEY, and MKYP control building
of the infratsructure (libraries, support programs, etc.)

* USE_HESIOD, USE_KERBEROS, USE_SKEY, and USE_YP control
building of support for using the corresponding API
in various libraries/programs that can use it.

As discussed on tech-toolchain.
 1.10 24-Oct-1997  lukem use CPPFLAGS instead of CFLAGS
 1.9 22-Jul-1997  mrg branches: 1.9.2;
find "namespace.h" ...
 1.8 08-May-1997  gwr Back out the .PATH.c changes. The .depend problem (and others)
will be fixed using the new .NOPATH make feature instead.
 1.7 06-May-1997  gwr Use .PATH.c: ...
 1.6 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.5 26-Mar-1995  glass merged with 4.4Lite
 1.4 07-Jan-1995  mycroft Patch from Giles Lean to make compilation flags more consistent.
 1.3 31-Jul-1993  mycroft Add RCS indentifiers.
 1.2 11-Jun-1993  brezak Add YP support.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.9.2.1 08-Nov-1997  lukem sync with trunk (approved by thorpej)
 1.11.2.1 16-Jun-2003  grant Pull up revision 1.13 (requested by bouyer in ticket #1245):

Build custom getpwent.o only if USE_YP==no. Otherwise, chpass will not
get the current passwd entry from NIS. Problem reported by Stephen M. Jone
on tech-net.
 1.15.74.1 28-Jul-2018  pgoyette Sync with HEAD
 1.25 21-Apr-2012  roy Add capfile(5) to describe the termcap format.
Adjust various man pages and other documentation to point to capfile(5)
instead of termcap(5).
Remove getcap(3) as curses hasn't been building it for a long time.
Punt wrterm.c as tset no longer uses it.
 1.24 22-Mar-2012  wiz Fix whitespace nits. Suggested by Bug Hunting.
 1.23 07-Oct-2006  elad branches: 1.23.40;
PR/29722: Andreas Kling: chpass temporary files in /etc not always unlinked

We had a (long) discussion about this in #NetBSD-code and the consensus was
that /tmp should always be sticky (+t), and as such it is safe to create
the temporary files for chpass(1) in there. We added a check to guarantee
this (and bail out otherwise) and now temporary files are created in /tmp,
not filling up /etc.

Thanks to rivo nurges et al.
 1.22 05-Sep-2005  hubertf Mention pwhash(1) in a few places,
suggested in PR 31125 by Stefan Schumacher.
 1.21 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.20 16-Feb-2003  wiz Describe class field correctly. Addresses PR 20370 by Pavel Cahyna.
 1.19 30-Sep-2002  grant New sentence, new line. Some mdoc cleanup.
 1.18 07-Aug-2002  soren Mentions options -l and -y as in passwd.1.
PR misc/14574 from Hiramatsu Yoshifumi.
 1.17 01-Dec-2001  wiz Sort sections, punctuation fixes, sort SEE ALSO.
 1.16 01-Dec-2001  wiz Whitespace cleanup.
 1.15 06-Jul-2000  ad Xref passwd.conf.
 1.14 28-Apr-1998  fair branches: 1.14.10;
Change occurrences of "UNIX" to .Ux or .At as appropriate.
 1.13 18-Mar-1998  mikel capitalize title of Morris&Thompson paper, use .Ev for EDITOR
 1.12 06-Feb-1998  perry macroize BSD, NetBSD, FreeBSD and misc cleanup
 1.11 11-Nov-1997  mrg add missing .Nm sections.
 1.10 18-Oct-1997  lukem branches: 1.10.2;
WARNSify, fix .Nm usage, bzero -> memset
 1.9 08-Mar-1997  mouse alternate -> alternative, per PR 2643
 1.8 09-Jan-1997  tls add note about Kerberos to manual page
 1.7 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.6 14-Sep-1995  jtc Fix formatting as suggested in PR #1452
 1.5 07-Jul-1995  jtc Fix formatting; PR #1194
 1.4 26-Mar-1995  glass merged with 4.4Lite
 1.3 01-Aug-1993  mycroft Add RCS indentifiers.
 1.2 22-Apr-1993  mycroft Fix various bugs in man pages (from 386BSD patch 130).
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.10.2.1 11-Nov-1997  mrg pull up from trunk: add missing .Nm sections.
 1.14.10.1 26-Feb-2002  he Pull up revision 1.15 (requested by jonathan):
Add support for local MD5-encrypted passwords.
 1.23.40.2 23-May-2012  yamt sync with head.
 1.23.40.1 17-Apr-2012  yamt sync with head
 1.35 31-Aug-2011  plunky NULL does not need a cast
 1.34 29-Aug-2011  joerg static + __dead
 1.33 21-Jul-2008  lukem Remove the \n and tabs from the __COPYRIGHT() strings.
Tweak to use a consistent format.
 1.32 21-Feb-2007  hubertf branches: 1.32.12;
pw_lock(3): ``You should finish writing to and close the file descriptor
returned by pw_lock() before calling pw_mkdb().'' While there, also
close another open file descriptor that's no longer used.

Patch from Slava Semushin <slava.semushin@gmail.com>, tested by me.
 1.31 07-Oct-2006  elad PR/29722: Andreas Kling: chpass temporary files in /etc not always unlinked

We had a (long) discussion about this in #NetBSD-code and the consensus was
that /tmp should always be sticky (+t), and as such it is safe to create
the temporary files for chpass(1) in there. We added a check to guarantee
this (and bail out otherwise) and now temporary files are created in /tmp,
not filling up /etc.

Thanks to rivo nurges et al.
 1.30 02-Jun-2005  lukem Ensure yflag is initialized before trying to use it.
Detected with gcc -Wuninitialized.
 1.29 17-Feb-2005  xtraeme branches: 1.29.2;
Kill __P(), use ANSI function declarations.
 1.28 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.27 16-Nov-2002  itojun error handling on strdup failure
 1.26 16-Aug-2002  enami Make this compiles again when compiled without YP.
From Makoto Fujiwara in private mail.
 1.25 08-Aug-2002  enami Don't leave temporary file on abnormal exit (like, interrupted by user).
Minor cosmetic chagnes while I'm here.
 1.24 07-Aug-2002  soren Mentions options -l and -y as in passwd.1.
PR misc/14574 from Hiramatsu Yoshifumi.
 1.23 11-Jun-2002  itojun err/errx/warn/warnx do not need \n at the end
 1.22 18-Aug-2001  ad Update for pw_mkdb() change: restrict updates to one user's records and/or
the secure database where appropriate.
 1.21 13-Feb-2001  cgd progname not used here, so don't extern it
 1.20 27-Oct-2000  phil getpwuid() and getpwnam() both support YP maps, insecure and secure.
Remove local ypgetpw{uid,nam} which don't support secure maps.
(Using chpass/chfn with secure maps and these local functions turns off
users by putting * in password entry.)
 1.19 07-Jul-2000  itojun errx?/warnx? audit. do not pass variable alone, use %s. idea from openbsd
 1.18 08-Feb-1999  mjl branches: 1.18.2; 1.18.10;
Fix for PR 5507 and 6686, using mostly patch by Rick Byers.
 1.17 19-Dec-1998  thorpej Set close-on-exec on all opened files. Partially from OpenBSD.
 1.16 19-Dec-1998  thorpej Better error message if opening the temp file fails.
 1.15 05-Jul-1998  mrg KNF
 1.14 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.13 25-Jul-1997  mikel initialize variables for gcc -Wall (marked XXX)
compare getopt() result to -1, not EOF
 1.12 24-Jul-1997  phil Changes to close PR3807. (Different than in PR.)
-- don't lock passwd until data is collected.
-- save a copy of original pw data for pw_copy checking
-- Try several times to lock passwd
 1.11 05-Jan-1997  cjs PR 3081: segfault due to reversed test.
Fix from Todd Kover <kovert@omniscient.com>.
 1.10 26-Nov-1996  thorpej Fix a semantic problem reported by Chuck Cranor:

If a user wishes to change a password on a system running YP, and
the master server is not running rpc.yppasswdd, chpass(1) would fail,
even if the user had a local entry. Fix this by checking for local
entry if master is not running rpc.yppasswd iff we defaulted to using
YP (not invoked with "-y").

XXX Unlike the similar change to passwd(1), this one duplicates some
XXX code (makes an attempt to contact rpc.yppasswdd early). This is
XXX a side-effect of the structure of this program. chpass(1) could
XXX use a re-write.
 1.9 09-Aug-1996  thorpej Slight semantics change: ALWAYS use YP if the system is bound to a
YP server. This is required if the passwd database is to stay in sync
if this program is run on the YP server. Note, local passwd database
operations can still be performed by passing the -l flag.
 1.8 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.7 28-Jul-1995  phil Improvements to YP support from Jason Downs.
 1.6 26-Jun-1995  jtc Remove unnecessary sys/signal.h header
 1.5 26-Mar-1995  glass merged with 4.4Lite
 1.4 17-Aug-1994  deraadt branches: 1.4.2;
tabs
 1.3 01-Aug-1993  mycroft Add RCS identifiers.
 1.2 11-Jun-1993  brezak Add YP support.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.4.2.2 17-Aug-1994  deraadt tabs
 1.4.2.1 17-Aug-1994  deraadt file chpass.c was added on branch netbsd-1-0 on 1994-08-17 19:54:40 +0000
 1.18.10.3 15-Nov-2000  tv Revert pullup of 1.20 [releng].
This causes other issues that need to be addressed as part of a more complete
change in 1.5.1.
 1.18.10.2 30-Oct-2000  tv Pullup 1.20 [phil]:
getpwuid() and getpwnam() both support YP maps, insecure and secure.
Remove local ypgetpw{uid,nam} which don't support secure maps.
(Using chpass/chfn with secure maps and these local functions turns off
users by putting * in password entry.)
 1.18.10.1 28-Jul-2000  itojun pullup (approved by releng-1-5)
printf-like format pedant. do not pass string variable alone. use "%s".
from openbsd.

/cvsroot/basesrc/usr.bin/biff/biff.c 1.6 -> 1.7
/cvsroot/basesrc/usr.bin/chpass/chpass.c 1.18 -> 1.19
/cvsroot/basesrc/usr.bin/finger/net.c 1.13 -> 1.14
/cvsroot/basesrc/usr.bin/finger/util.c 1.15 -> 1.16
/cvsroot/basesrc/usr.bin/hexdump/display.c 1.8 -> 1.9
/cvsroot/basesrc/usr.bin/ktrace/ktrace.c 1.18 -> 1.19
/cvsroot/basesrc/usr.bin/mail/lex.c 1.14 -> 1.15
/cvsroot/basesrc/usr.bin/modstat/modstat.c 1.14 -> 1.15
/cvsroot/basesrc/usr.bin/tcopy/tcopy.c 1.9 -> 1.10
/cvsroot/basesrc/usr.bin/tn3270/ascii/map3270.c 1.7 -> 1.8
/cvsroot/basesrc/usr.bin/tn3270/tools/mkmake/mkmake.y 1.7 -> 1.8
/cvsroot/basesrc/usr.bin/vmstat/dkstats.c 1.8 -> 1.9
 1.18.2.1 20-Oct-2000  he Apply patch (requested by phil):
Change password database information without turning off the user
when using secure YP maps.
 1.29.2.1 15-Jun-2005  snj Pull up revision 1.30 (requested by lukem in ticket #405):
Ensure yflag is initialized before trying to use it.
Detected with gcc -Wuninitialized.
 1.32.12.1 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.13 29-Aug-2011  joerg static + __dead
 1.12 17-Feb-2005  xtraeme Kill __P(), use ANSI function declarations.
 1.11 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.10 05-Feb-2001  christos fix redundant decls
 1.9 26-Jul-1998  mycroft const poisoning.
 1.8 04-Feb-1998  christos Use strftime and strptime.
 1.7 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.6 25-Jul-1997  mikel add prototypes for check_yppasswdd() and pw_yp()
 1.5 09-Aug-1996  thorpej Slight semantics change: ALWAYS use YP if the system is bound to a
YP server. This is required if the passwd database is to stay in sync
if this program is run on the YP server. Note, local passwd database
operations can still be performed by passing the -l flag.
 1.4 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.3 26-Mar-1995  glass merged with 4.4Lite
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.22 27-Oct-2015  shm Fixed memory leak (CID 978341)

OK kamil@
 1.21 31-Aug-2011  plunky NULL does not need a cast
 1.20 11-Apr-2009  lukem Fix WARNS=4 (-Wcast-qual -Wsign-compare -Wshadow) issues.
 1.19 02-Jun-2005  lukem branches: 1.19.30;
appease gcc -Wuninitialized
 1.18 17-Feb-2005  xtraeme Kill __P(), use ANSI function declarations.
 1.17 30-Oct-2004  dsl Add (unsigned char) cast to ctype functions
 1.16 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.15 03-Feb-2003  christos Open the file with O_NOFOLLOW, and only use if it still has one link (from
OpenBSD)
 1.14 16-Nov-2002  itojun error handling on strdup failure
 1.13 08-Aug-2002  enami Don't leave temporary file on abnormal exit (like, interrupted by user).
Minor cosmetic chagnes while I'm here.
 1.12 26-Jul-1998  mycroft const poisoning.
 1.11 04-Feb-1998  christos Use strftime and strptime.
 1.10 19-Oct-1997  mrg fix compile warnings on the alpha.
 1.9 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.8 11-Feb-1997  mrg remove dangerous sprintf and strcpy calls.
 1.7 09-Aug-1996  thorpej Slight semantics change: ALWAYS use YP if the system is bound to a
YP server. This is required if the passwd database is to stay in sync
if this program is run on the YP server. Note, local passwd database
operations can still be performed by passing the -l flag.
 1.6 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.5 28-Jul-1995  phil Improvements to YP support from Jason Downs.
 1.4 26-Mar-1995  glass merged with 4.4Lite
 1.3 17-Aug-1994  deraadt branches: 1.3.2;
fix bug 417
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.3.2.2 17-Aug-1994  deraadt fix bug 417
 1.3.2.1 17-Aug-1994  deraadt file edit.c was added on branch netbsd-1-0 on 1994-08-17 19:54:35 +0000
 1.19.30.1 13-May-2009  jym Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
 1.12 11-Apr-2009  lukem Fix WARNS=4 (-Wcast-qual -Wsign-compare -Wshadow) issues.
 1.11 17-Feb-2005  xtraeme branches: 1.11.36;
Kill __P(), use ANSI function declarations.
 1.10 30-Oct-2004  dsl Add (unsigned char) cast to ctype functions
 1.9 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.8 09-May-2002  simonb Fix warnings found by gcc-current with alpha target:
There's no use assigning the output of strtoul() to a 32-bit variable
then checking that against ULONG_MAX. Instead use a "unsigned long"
as the temporary variable. Also, only check against UID_MAX/GID_MAX;
these are both going to be smaller than ULONG_MAX on both 32- and 64-bit
platforms.
 1.7 10-Aug-1998  kim We need to initialize the "save" member in the list for GECOS fields.
If the user deletes a field while editing (as an easy way of making
that field empty) then "save" for that field will not get initialized
before referencing it when constructing the new GECOS field.
 1.6 26-Jul-1998  mycroft const poisoning.
 1.5 05-Jul-1998  mrg KNF
 1.4 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.3 26-Mar-1995  glass merged with 4.4Lite
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.11.36.1 13-May-2009  jym Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
 1.4 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.3 26-Mar-1995  glass merged with 4.4Lite
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.4 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.3 26-Mar-1995  glass merged with 4.4Lite
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.3 15-May-1996  jtc Updated to use new password file functions in libutil.
From Greg Hudson <ghudson@MIT.EDU>.
 1.2 26-Mar-1995  glass merged with 4.4Lite
 1.1 26-Mar-1995  glass branches: 1.1.1;
Initial revision
 1.1.1.1 26-Mar-1995  glass Import from 4.4Lite
 1.23 17-Jun-2015  christos more stray \n
 1.22 11-Apr-2009  lukem Fix WARNS=4 (-Wcast-qual -Wsign-compare -Wshadow) issues.
 1.21 17-Feb-2005  xtraeme branches: 1.21.36;
Kill __P(), use ANSI function declarations.
 1.20 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.19 16-Nov-2002  itojun error handling on strdup failure
 1.18 27-Oct-2000  phil getpwuid() and getpwnam() both support YP maps, insecure and secure.
Remove local ypgetpw{uid,nam} which don't support secure maps.
(Using chpass/chfn with secure maps and these local functions turns off
users by putting * in password entry.)
 1.17 11-Oct-2000  is More format string cleanup by sommerfeld.
 1.16 04-Oct-2000  itojun plug warn() call with variable only, just in case - honor behavior of warn(NULL)
 1.15 16-Aug-1999  simonb branches: 1.15.8;
Spell "privilege" correctly (correct spelling from Jonathan Stone).
 1.14 26-Jul-1998  mycroft branches: 1.14.2;
const poisoning.
 1.13 05-Jul-1998  mrg KNF
 1.12 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.11 25-Jul-1997  mikel include <err.h> and <stdlib.h> for prototypes
give pw_yp() an explicit type
 1.10 21-May-1997  lukem remove use of register.
 1.9 21-May-1997  lukem * free up returned data if yp_master() or yp_match() failed
* simplify two case 'switch'es into 'if' statements
 1.8 11-Feb-1997  mrg remove dangerous sprintf and strcpy calls.
 1.7 26-Nov-1996  thorpej Fix a semantic problem reported by Chuck Cranor:

If a user wishes to change a password on a system running YP, and
the master server is not running rpc.yppasswdd, chpass(1) would fail,
even if the user had a local entry. Fix this by checking for local
entry if master is not running rpc.yppasswd iff we defaulted to using
YP (not invoked with "-y").

XXX Unlike the similar change to passwd(1), this one duplicates some
XXX code (makes an attempt to contact rpc.yppasswdd early). This is
XXX a side-effect of the structure of this program. chpass(1) could
XXX use a re-write.
 1.6 09-Aug-1996  thorpej Slight semantics change: ALWAYS use YP if the system is bound to a
YP server. This is required if the passwd database is to stay in sync
if this program is run on the YP server. Note, local passwd database
operations can still be performed by passing the -l flag.
 1.5 26-Mar-1995  glass merged with 4.4Lite
 1.4 17-Aug-1994  deraadt branches: 1.4.2;
fix same bug as in passwd
 1.3 29-Jun-1994  deraadt knf & small bug fix
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 11-Jun-1993  brezak Add YP support.
 1.4.2.2 17-Aug-1994  deraadt fix same bug as in passwd
 1.4.2.1 17-Aug-1994  deraadt file pw_yp.c was added on branch netbsd-1-0 on 1994-08-17 19:54:24 +0000
 1.14.2.2 20-Oct-2000  he Apply patch (requested by phil):
Change password database information without turning off the user
when using secure YP maps.
 1.14.2.1 19-Oct-2000  he Pull up revision 1.16-1.17 (requested by itojun):
Plug warn() call with variable only.
 1.15.8.3 15-Nov-2000  tv Revert pullup of 1.18 [releng].
This causes other issues that need to be addressed as part of a more complete
change in 1.5.1.
 1.15.8.2 30-Oct-2000  tv Pullup 1.18 [phil]:
getpwuid() and getpwnam() both support YP maps, insecure and secure.
Remove local ypgetpw{uid,nam} which don't support secure maps.
(Using chpass/chfn with secure maps and these local functions turns off
users by putting * in password entry.)
 1.15.8.1 18-Oct-2000  tv Pullup usr.bin string format fixes [is].
See "cvs log" for explicit revision numbers per file, from sommerfeld.
 1.21.36.1 13-May-2009  jym Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
 1.7 11-Apr-2009  lukem Fix WARNS=4 (-Wcast-qual -Wsign-compare -Wshadow) issues.
 1.6 07-Aug-2003  agc branches: 1.6.42;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.5 10-Aug-1998  kim We need to initialize the "save" member in the list for GECOS fields.
If the user deletes a field while editing (as an easy way of making
that field empty) then "save" for that field will not get initialized
before referencing it when constructing the new GECOS field.
 1.4 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.3 26-Mar-1995  glass merged with 4.4Lite
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.6.42.1 13-May-2009  jym Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
 1.12 17-Feb-2005  xtraeme Kill __P(), use ANSI function declarations.
 1.11 07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.10 26-Jul-1998  mycroft const poisoning.
 1.9 26-Jul-1998  mycroft const poisoning.
 1.8 04-Feb-1998  christos Use strftime and strptime.
 1.7 18-Oct-1997  lukem WARNSify, fix .Nm usage, bzero -> memset
 1.6 25-Jul-1997  mikel make comparison to NULL explicit (gcc -Wall)
 1.5 11-Feb-1997  mrg remove dangerous sprintf and strcpy calls.
 1.4 26-Mar-1995  glass merged with 4.4Lite
 1.3 03-Jan-1994  cgd get the expire and change dates right if they're after 1/1/2000
 1.2 01-Aug-1993  mycroft Add RCS identifiers.
 1.1 21-Mar-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.2 26-Mar-1995  glass Import from 4.4Lite
 1.1.1.1 21-Mar-1993  cgd initial import of 386bsd-0.1 sources

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