108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*
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* Copyright (c) 1990 - 1994, Julianne Frances Haugh
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* Copyright (c) 1996 - 2000, Marek Michałkiewicz
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* Copyright (c) 2001 , Michał Moskal
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* Copyright (c) 2005 , Tomasz Kłoczko
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* Copyright (c) 2007 - 2010, Nicolas François
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the copyright holders or contributors may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <config.h>
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#ident "$Id$"
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#include "prototypes.h"
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#include "defines.h"
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#include "groupio.h"
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/*@null@*/ /*@only@*/struct group *__gr_dup (const struct group *grent)
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{
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struct group *gr;
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int i;
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gr = (struct group *) malloc (sizeof *gr);
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if (NULL == gr) {
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return NULL;
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}
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gr->gr_gid = grent->gr_gid;
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gr->gr_name = strdup (grent->gr_name);
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if (NULL == gr->gr_name) {
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free(gr);
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return NULL;
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}
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gr->gr_passwd = strdup (grent->gr_passwd);
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if (NULL == gr->gr_passwd) {
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free(gr->gr_name);
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free(gr);
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return NULL;
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}
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for (i = 0; grent->gr_mem[i]; i++);
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gr->gr_mem = (char **) malloc ((i + 1) * sizeof (char *));
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if (NULL == gr->gr_mem) {
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free(gr->gr_passwd);
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free(gr->gr_name);
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free(gr);
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return NULL;
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}
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for (i = 0; grent->gr_mem[i]; i++) {
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gr->gr_mem[i] = strdup (grent->gr_mem[i]);
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if (NULL == gr->gr_mem[i]) {
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int j;
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for (j=0; j<i; j++)
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free(gr->gr_mem[j]);
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free(gr->gr_mem);
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free(gr->gr_passwd);
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free(gr->gr_name);
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free(gr);
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return NULL;
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}
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}
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gr->gr_mem[i] = NULL;
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return gr;
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}
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void gr_free (/*@out@*/ /*@only@*/struct group *grent)
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{
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free (grent->gr_name);
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if (NULL != grent->gr_passwd) {
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memzero (grent->gr_passwd, strlen (grent->gr_passwd));
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free (grent->gr_passwd);
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}
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if (NULL != grent->gr_mem) {
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size_t i;
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for (i = 0; NULL != grent->gr_mem[i]; i++) {
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free (grent->gr_mem[i]);
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}
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free (grent->gr_mem);
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}
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free (grent);
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}
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