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/*
* Copyright (c) 1990 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2001 , Michał Moskal
* Copyright (c) 2005 , Tomasz Kłoczko
* Copyright (c) 2007 - 2013, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#ident "$Id$"
#include "prototypes.h"
#include "defines.h"
#include "groupio.h"
/*@null@*/ /*@only@*/struct group *__gr_dup (const struct group *grent)
{
struct group *gr;
int i;
gr = (struct group *) malloc (sizeof *gr);
if (NULL == gr) {
return NULL;
}
/* The libc might define other fields. They won't be copied. */
memset (gr, 0, sizeof *gr);
gr->gr_gid = grent->gr_gid;
/*@-mustfreeonly@*/
gr->gr_name = strdup (grent->gr_name);
/*@=mustfreeonly@*/
if (NULL == gr->gr_name) {
gr_free(gr);
return NULL;
}
/*@-mustfreeonly@*/
gr->gr_passwd = strdup (grent->gr_passwd);
/*@=mustfreeonly@*/
if (NULL == gr->gr_passwd) {
gr_free(gr);
return NULL;
}
for (i = 0; grent->gr_mem[i]; i++);
/*@-mustfreeonly@*/
gr->gr_mem = (char **) malloc ((i + 1) * sizeof (char *));
/*@=mustfreeonly@*/
if (NULL == gr->gr_mem) {
gr_free(gr);
return NULL;
}
for (i = 0; grent->gr_mem[i]; i++) {
gr->gr_mem[i] = strdup (grent->gr_mem[i]);
if (NULL == gr->gr_mem[i]) {
gr_free(gr);
return NULL;
}
}
gr->gr_mem[i] = NULL;
return gr;
}
void gr_free_members (struct group *grent)
{
if (NULL != grent->gr_mem) {
size_t i;
for (i = 0; NULL != grent->gr_mem[i]; i++) {
free (grent->gr_mem[i]);
}
free (grent->gr_mem);
grent->gr_mem = NULL;
}
}
void gr_free (/*@out@*/ /*@only@*/struct group *grent)
{
free (grent->gr_name);
if (NULL != grent->gr_passwd) {
memzero (grent->gr_passwd, strlen (grent->gr_passwd));
free (grent->gr_passwd);
}
gr_free_members(grent);
free (grent);
}
bool gr_append_member(struct group *grp, char *member)
{
int i;
if (NULL == grp->gr_mem || grp->gr_mem[0] == NULL) {
grp->gr_mem = (char **)malloc(2 * sizeof(char *));
if (!grp->gr_mem) {
return false;
}
grp->gr_mem[0] = strdup(member);
if (!grp->gr_mem[0]) {
return false;
}
grp->gr_mem[1] = NULL;
return true;
}
for (i = 0; grp->gr_mem[i]; i++) ;
grp->gr_mem = realloc(grp->gr_mem, (i + 2) * sizeof(char *));
if (NULL == grp->gr_mem) {
return false;
}
grp->gr_mem[i] = strdup(member);
if (NULL == grp->gr_mem[i]) {
return false;
}
grp->gr_mem[i + 1] = NULL;
return true;
}
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