yppasswd(3N)

NAME

yppasswd() — update user password in Network Information Service

SYNOPSIS

cc [ flag... ] file... -lnsl [ library... ]

#include <pwd.h> 
#include <rpcsvc/yppasswd.h> 

int yppasswd(char *oldpass, struct passwd *newpw); 

DESCRIPTION

If oldpass is the old, unencrypted user password, this routine replaces the password entry with the encrypted newpw.

RPC Info

Program number:

YPPASSWDPROG 

XDR routines:

xdr_yppasswd(xdrs, yp)
   XDR *xdrs;
   struct yppasswd *yp;

xdr_passwd(xdrs, pw)
   XDR *xdrs;
   struct passwd *pw;

Procs:

YPPASSWDPROC_UPDATE: Takes struct yppasswd as an argument; returns an integer. Behaves the same as the yppasswd() function. Uses UNIX authentication.

Versions:

YPPASSWDVERS 

Structures:

struct yppasswd {
   char *oldpass;        /* old (unencrypted) password */
   struct passwd newpw;  /* new pw structure */
};

MULTITHREAD USAGE

Thread Safe:: Yes
Cancel Safe:: Yes
Fork Safe:: No
Async-cancel Safe:: No
Async-signal Safe:: No

These functions can be called safely in a multithreaded environment. They may be cancellation points in that they call functions that are cancel points.

In a multithreaded environment, these functions are not safe to be called by a child process after fork() and before exec(). These functions should not be called by a multithreaded application that support asynchronous cancellation or asynchronous signals.

RETURN VALUE

yppasswd() returns 0 if successful and -1 if an error occurs.

AUTHOR

yppasswd() was developed by Sun Microsystems, Inc.

yppasswd(3N)

Technical documentation

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