usr/src/lib/libc/port/gen/getspent.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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include "lint.h"
  33 #include <sys/types.h>
  34 #include <shadow.h>
  35 #include <nss_dbdefs.h>
  36 #include <stdio.h>
  37 #include "tsd.h"
  38
  39 /*
  40  * Ye olde non-reentrant interface (MT-unsafe, caveat utor)
  41  */
  42
  43 static void
  44 free_spbuf(void *arg)
  45 {
  46         nss_XbyY_buf_t **buffer = arg;
  47
  48         NSS_XbyY_FREE(buffer);
  49 }
  50
  51 static nss_XbyY_buf_t *
  52 get_spbuf()
  53 {
  54         nss_XbyY_buf_t **buffer =
  55             tsdalloc(_T_SPBUF, sizeof (nss_XbyY_buf_t *), free_spbuf);
  56         nss_XbyY_buf_t *b;
  57
  58         if (buffer == NULL)
  59                 return (NULL);
  60         b = NSS_XbyY_ALLOC(buffer, sizeof (struct spwd), NSS_BUFLEN_SHADOW);
  61         return (b);
  62 }
  63
  64 struct spwd *
  65 getspnam(const char *nam)
  66 {
  67         nss_XbyY_buf_t  *b = get_spbuf();
  68
  69         return (b == NULL ? NULL :
  70             getspnam_r(nam, b->result, b->buffer, b->buflen));
  71 }
  72
  73 struct spwd *
  74 getspent(void)
  75 {
  76         nss_XbyY_buf_t  *b = get_spbuf();
  77
  78         return (b == NULL ? NULL :
  79             getspent_r(b->result, b->buffer, b->buflen));
  80 }
  81
  82 struct spwd *
  83 fgetspent(FILE *f)
  84 {
  85         nss_XbyY_buf_t  *b = get_spbuf();
  86
  87         return (b == NULL ? NULL :
  88             fgetspent_r(f, b->result, b->buffer, b->buflen));
  89 }