shadow/lib/pwmem.c
nekral-guest d346c7c6a7 * lib/shadowmem.c: Only copy the required fields of the struct
spwd. (start with the primitive types)
	* lib/shadowmem.c: Avoid memzero() on a possibly NULL pointer.
	* lib/groupmem.c: Only copy the required fields of the struct
	group. (start with the primitive types)
	* lib/groupmem.c: Avoid memzero() on a possibly NULL pointer.
	* lib/groupmem.c: Free gr_mem in addition to its elements.
	* lib/sgroupio.c: The struct sgrp has no primitive types to be
	copied initially.
	* lib/sgroupio.c: Avoid memzero() on a possibly NULL pointer.
	* lib/sgroupio.c: Free sg_mem and sg_add in addition to their
	elements.
	* lib/pwmem.c: Only copy the required fields of the struct
	passwd. (start with the primitive types)
2009-09-07 19:08:10 +00:00

105 lines
3.1 KiB
C

/*
* Copyright (c) 1990 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2001 , Michał Moskal
* Copyright (c) 2003 - 2005, Tomasz Kłoczko
* Copyright (c) 2007 - 2009, 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 <stdio.h>
#include "defines.h"
#include "prototypes.h"
#include "pwio.h"
/*@null@*/ /*@only@*/struct passwd *__pw_dup (const struct passwd *pwent)
{
struct passwd *pw;
pw = (struct passwd *) malloc (sizeof *pw);
if (NULL == pw) {
return NULL;
}
pw->pw_uid = pwent->pw_uid;
pw->pw_gid = pwent->pw_gid;
pw->pw_name = strdup (pwent->pw_name);
if (NULL == pw->pw_name) {
free(pw);
return NULL;
}
pw->pw_passwd = strdup (pwent->pw_passwd);
if (NULL == pw->pw_passwd) {
free(pw->pw_name);
free(pw);
return NULL;
}
pw->pw_gecos = strdup (pwent->pw_gecos);
if (NULL == pw->pw_gecos) {
free(pw->pw_passwd);
free(pw->pw_name);
free(pw);
return NULL;
}
pw->pw_dir = strdup (pwent->pw_dir);
if (NULL == pw->pw_dir) {
free(pw->pw_gecos);
free(pw->pw_passwd);
free(pw->pw_name);
free(pw);
return NULL;
}
pw->pw_shell = strdup (pwent->pw_shell);
if (NULL == pw->pw_shell) {
free(pw->pw_dir);
free(pw->pw_gecos);
free(pw->pw_passwd);
free(pw->pw_name);
free(pw);
return NULL;
}
return pw;
}
void pw_free (/*@out@*/ /*@only@*/struct passwd *pwent)
{
free (pwent->pw_name);
if (pwent->pw_passwd) {
memzero (pwent->pw_passwd, strlen (pwent->pw_passwd));
free (pwent->pw_passwd);
}
free (pwent->pw_gecos);
free (pwent->pw_dir);
free (pwent->pw_shell);
free (pwent);
}