02-25-2012
Hi,
you can use config file to store the DB details and don't provide even read permission to that config file to anyone else except you.
you can read the config file from shell script to get your required DB details.
Cheers,
Ranga
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LEARN ABOUT OPENSOLARIS
ulckpwdf
lckpwdf(3C) Standard C Library Functions lckpwdf(3C)
NAME
lckpwdf, ulckpwdf - manipulate shadow password database lock file
SYNOPSIS
#include <shadow.h>
int lckpwdf(void);
int ulckpwdf(void);
DESCRIPTION
The lckpwdf() and ulckpwdf() functions enable modification access to the password databases through the lock file. A process first uses
lckpwdf() to lock the lock file, thereby gaining exclusive rights to modify the /etc/passwd or /etc/shadow password database. See
passwd(4) and shadow(4). Upon completing modifications, a process should release the lock on the lock file using ulckpwdf(). This mechanism
prevents simultaneous modification of the password databases. The lock file, /etc/.pwd.lock, is used to coordinate modification access to
the password databases /etc/passwd and /etc/shadow.
RETURN VALUES
If lckpwdf() is successful in locking the file within 15 seconds, it returns 0. If unsuccessful (for example, /etc/.pwd.lock is already
locked), it returns -1.
If ulckpwdf() is successful in unlocking the file /etc/.pwd.lock, it returns 0. If unsuccessful (for example, /etc/.pwd.lock is already
unlocked), it returns -1.
USAGE
These routines are for internal use only; compatibility is not guaranteed.
FILES
/etc/passwd password database
/etc/shadow shadow password database
/etc/.pwd.lock lock file
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
getpwnam(3C), getspnam(3C), passwd(4), shadow(4), attributes(5)
SunOS 5.11 29 Dec 1996 lckpwdf(3C)