CVS commit: [netbsd-1-6] src/usr.sbin/rpc.yppasswdd

[James Chacon <jmc%netbsd.org@localhost>]

Module Name:    src
Committed By:   jmc
Date:           Thu May 20 03:43:18 UTC 2004

Modified Files:
        src/usr.sbin/rpc.yppasswdd [netbsd-1-6]: yppasswdd_mkpw.c

Log Message:
Pullup rev 1.12 (requested by 1694 in ticket #wennmach)

Problem: rpc.yppasswdd didn't work if invoked with the -noshell option.

Reason: In routine make_passwd() in yppasswdd_mkpw.c, fgets() is used
to read master.passwd line-by-line. The lines are then parsed using
pw_scan(), without removing the trailing \n from the line. pw_scan()
fills in the shell name into pw.pw_shell, including the trailing \n.

Subsequently, rpc.yppasswdd calls pw_copy(), which copies master.passwd
to ptmp, updating the entry for pw.pw_name. pw_copy() terminates the
updated entry with an additonal \n, so that there is now an empty line
in ptmp.

Finally, rpc.yppasswdd calls pw_mkdb(3), which exec's /usr/sbin/pwd_mkdb
to install ptmp to master.passwd (and to create the pwd.db and spwd.db
data bases). pwd_mkdb chokes on the empty ptmp line.

Fix: remove the trailing \n from the buffer fgets() returns. As a side
effect, this gets us some additional error checking.


To generate a diff of this commit:
cvs rdiff -r1.9.2.1 -r1.9.2.2 src/usr.sbin/rpc.yppasswdd/yppasswdd_mkpw.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.