cmd/bnu/getpwinfo.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*  Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */


#ident  "%Z%%M% %I% %E% SMI"    /* from SVR4 bnu:getpwinfo.c 2.8 */

#include "uucp.h"

#include <pwd.h>
extern struct passwd *getpwuid(), *getpwnam();
extern char *getlogin();


/*
 * get passwd file info for logname or uid
 *  uid -> uid #
 *  name    -> address of buffer to return ascii user name
 *      This will be set to pw->pw_name.
 *
 * return:
 *  0   -> success
 *  FAIL    -> failure (logname and uid not found)
 */
int
guinfo(uid, name)
uid_t uid;
char *name;
{
    register struct passwd *pwd;
    char    *login_name;

    /* look for this user as logged in utmp */
    if ((login_name = getlogin()) != NULL) {
        pwd = getpwnam(login_name);
        if (pwd != NULL && pwd->pw_uid == uid)
            goto uid_found;
    }

    /* no dice on utmp -- get first from passwd file */
    if ((pwd = getpwuid(uid)) == NULL) {
        if ((pwd = getpwuid(UUCPUID)) == NULL)
        /* can not find uid in passwd file */
        return(FAIL);
    }

uid_found:
    (void) strcpy(name, pwd->pw_name);
    return(0);
}

/*
 * get passwd file info for name
 *  name    -> ascii user name
 *  uid -> address of integer to return uid # in
 *  path    -> address of buffer to return working directory in
 * returns:
 *  0   -> success
 *  FAIL    -> failure
 */
int
gninfo(name, uid, path)
char *path, *name;
uid_t *uid;
{
    register struct passwd *pwd;

    if ((pwd = getpwnam(name)) == NULL) {
        /* can not find name in passwd file */
        *path = '\0';
        return(FAIL);
    }

    (void) strcpy(path, pwd->pw_dir);
    *uid = pwd->pw_uid;
    return(0);
}