Switch to NetBSD passwd format

Based on work by Vivek Prakash and Gianluca Guida.

See UPDATING about caveats on currently existing accounts.

	. restores netbsd libc pwcache functions

usr.sbin/user/Makefile

@@ -0,0 +1,81 @@
+# $NetBSD: Makefile,v 1.12 2009/04/22 15:23:09 lukem Exp $
+#
+
+WARNS?=	1	# XXX: -Wsign-compare -Wcast-qual
+
+.include <bsd.own.mk>
+
+CPPFLAGS+= -DEXTENSIONS -DPW_MKDB_ARGC=2
+
+PROG= user
+SRCS+= user.c main.c
+LINKS+=	${BINDIR}/user ${BINDIR}/useradd
+LINKS+=	${BINDIR}/user ${BINDIR}/userdel
+LINKS+=	${BINDIR}/user ${BINDIR}/usermod
+LINKS+=	${BINDIR}/user ${BINDIR}/group
+LINKS+=	${BINDIR}/user ${BINDIR}/groupadd
+LINKS+=	${BINDIR}/user ${BINDIR}/groupdel
+LINKS+=	${BINDIR}/user ${BINDIR}/groupmod
+LINKS+=	${BINDIR}/user ${BINDIR}/userinfo
+LINKS+=	${BINDIR}/user ${BINDIR}/groupinfo
+LDADD+= -lutil 
+DPADD+= ${LIBUTIL}
+MAN= user.8 useradd.8 userdel.8 usermod.8 userinfo.8 usermgmt.conf.5
+MAN+= group.8 groupadd.8 groupdel.8 groupmod.8 groupinfo.8
+MLINKS=	useradd.8 adduser.8
+
+# this target checks the built-in default group, and, if it doesn't exist,
+# creates it
+default-group:
+	@ln -fs ${.OBJDIR}/user ${.OBJDIR}/group;			\
+	defgrp=`${.OBJDIR}/user add -D |				\
+		${TOOL_AWK} '/^group/ { print $$2 }'`;			\
+	if ${.OBJDIR}/group info -e $$defgrp; then			\
+		defgid=`${.OBJDIR}/group info $$defgrp |		\
+			${TOOL_AWK} '/^gid/ { print $$2 }'`;		\
+	else								\
+		defgid=99;						\
+		while [ $$defgid -gt 0 ]; do				\
+			${.OBJDIR}/group info -e $$defgid || break;	\
+			defgid=`expr $$defgid - 1`;			\
+		done;							\
+		if [ $$defgid -eq 0 ]; then				\
+			defgid=100;					\
+			while [ $$defgid -lt 60000 ]; do		\
+				${.OBJDIR}/group info -e $$defgid || break; \
+				defgid=`expr $$defgid + 1`;		\
+			done;						\
+			if [ $$defgid -eq 60000 ]; then			\
+				echo "No gids left";			\
+				exit 1;					\
+			fi;						\
+		fi;							\
+		${.OBJDIR}/group add -g $$defgid $$defgrp;		\
+	fi;								\
+	echo "Default group is $$defgrp ($$defgid):";			\
+	${.OBJDIR}/group info $$defgrp
+
+.include <bsd.prog.mk>
+
+test: ${PROG}
+	@echo "No news is good news"
+	@echo "1. Adding new user"
+	@rm -f useradd
+	@ln -s user useradd
+	-./useradd -m -g=uid test1.1
+	@echo "2. Modifying new user"
+	-./${PROG} mod -l test1.2 test1.1
+	@echo "3. Deleting new user"
+	-./${PROG} del -r test1.2
+	@echo "4. Attempting to add an invalid user name - IGNORE ANY ERROR"
+	-./${PROG} add -m test1%1
+	@echo "5. Bad usage - IGNORE ANY ERROR"
+	-./${PROG} add -m
+	@echo "6. Set range defaults"
+	-./${PROG} add -D -r4000..6000
+	-./${PROG} add -D
+	@echo "7. Get user information"
+	-./${PROG} info root
+	@echo "8. Bad user name - IGNORE ANY ERROR"
+	-./${PROG} info test1%1 || echo "User not found"
+	@echo "All tests completed"