lib/libcompat/4.1/getpw.c

   1 /*
   2  * Copyright (c) 1995 Joerg Wunsch
   3  *
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Joerg Wunsch
  17  * 4. The name of the developer may not be used to endorse or promote
  18  *    products derived from this software without specific prior written
  19  *    permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/lib/libcompat/4.1/getpw.c,v 1.5 1999/08/28 00:04:12 peter Exp $
  33  * $DragonFly: src/lib/libcompat/4.1/getpw.c,v 1.2 2003/06/17 04:26:48 dillon Exp $
  34  */
  35
  36 #include <sys/types.h>
  37 #include <pwd.h>
  38 #include <string.h>
  39 #include <stdio.h>
  40
  41 int
  42 #if __STDC__
  43 getpw(uid_t uid, char *buf)
  44 #else
  45 getpw(uid, buf)
  46      uid_t uid;
  47      char *buf;
  48 #endif
  49 {
  50   struct passwd *pw;
  51
  52   pw = getpwuid(uid);
  53   endpwent();
  54
  55   if(pw == 0) return -1;
  56
  57   strncpy(buf, pw->pw_name, L_cuserid);
  58   return 0;
  59 }