usr/src/cmd/bnu/getpwinfo.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 #ident  "%Z%%M% %I%     %E% SMI"        /* from SVR4 bnu:getpwinfo.c 2.8 */
  27
  28 #include "uucp.h"
  29
  30 #include <pwd.h>
  31 extern struct passwd *getpwuid(), *getpwnam();
  32 extern char     *getlogin();
  33
  34
  35 /*
  36  * get passwd file info for logname or uid
  37  *      uid     -> uid #
  38  *      name    -> address of buffer to return ascii user name
  39  *              This will be set to pw->pw_name.
  40  *
  41  * return:
  42  *      0       -> success
  43  *      FAIL    -> failure (logname and uid not found)
  44  */
  45 int
  46 guinfo(uid, name)
  47 uid_t uid;
  48 char *name;
  49 {
  50         register struct passwd *pwd;
  51         char    *login_name;
  52
  53         /* look for this user as logged in utmp */
  54         if ((login_name = getlogin()) != NULL) {
  55                 pwd = getpwnam(login_name);
  56                 if (pwd != NULL && pwd->pw_uid == uid)
  57                         goto uid_found;
  58         }
  59
  60         /* no dice on utmp -- get first from passwd file */
  61         if ((pwd = getpwuid(uid)) == NULL) {
  62             if ((pwd = getpwuid(UUCPUID)) == NULL)
  63                 /* can not find uid in passwd file */
  64                 return(FAIL);
  65         }
  66
  67 uid_found:
  68         (void) strcpy(name, pwd->pw_name);
  69         return(0);
  70 }
  71
  72 /*
  73  * get passwd file info for name
  74  *      name    -> ascii user name
  75  *      uid     -> address of integer to return uid # in
  76  *      path    -> address of buffer to return working directory in
  77  * returns:
  78  *      0       -> success
  79  *      FAIL    -> failure
  80  */
  81 int
  82 gninfo(name, uid, path)
  83 char *path, *name;
  84 uid_t *uid;
  85 {
  86         register struct passwd *pwd;
  87
  88         if ((pwd = getpwnam(name)) == NULL) {
  89                 /* can not find name in passwd file */
  90                 *path = '\0';
  91                 return(FAIL);
  92         }
  93
  94         (void) strcpy(path, pwd->pw_dir);
  95         *uid = pwd->pw_uid;
  96         return(0);
  97 }
  98
  99