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/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1998-1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static const char rcsid[] = "$Id: getnetgrent_r.c,v 1.7.18.6 2008-02-28 05:49:37 marka Exp $";
#endif /* LIBC_SCCS and not lint */
#include <port_before.h>
#if !defined(_REENTRANT) || !defined(DO_PTHREADS)
static int getnetgrent_r_not_required = 0;
#else
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdlib.h>
#include <port_after.h>
#ifdef NGR_R_RETURN
#ifndef NGR_R_PRIVATE
#define NGR_R_PRIVATE 0
#endif
static NGR_R_RETURN
copy_protoent(NGR_R_CONST char **, NGR_R_CONST char **, NGR_R_CONST char **,
const char *, const char *, const char *, NGR_R_COPY_ARGS);
NGR_R_RETURN
innetgr_r(const char *netgroup, const char *host, const char *user,
const char *domain) {
char *ng, *ho, *us, *dom;
DE_CONST(netgroup, ng);
DE_CONST(host, ho);
DE_CONST(user, us);
DE_CONST(domain, dom);
return (innetgr(ng, ho, us, dom));
}
/*%
* These assume a single context is in operation per thread.
* If this is not the case we will need to call irs directly
* rather than through the base functions.
*/
NGR_R_RETURN
getnetgrent_r(NGR_R_CONST char **machinep, NGR_R_CONST char **userp,
NGR_R_CONST char **domainp, NGR_R_ARGS)
{
NGR_R_CONST char *mp, *up, *dp;
int res = getnetgrent(&mp, &up, &dp);
if (res != 1)
return (res);
return (copy_protoent(machinep, userp, domainp,
mp, up, dp, NGR_R_COPY));
}
#if NGR_R_PRIVATE == 2
struct private {
char *buf;
};
#endif
NGR_R_SET_RETURN
#ifdef NGR_R_SET_ARGS
setnetgrent_r(NGR_R_SET_CONST char *netgroup, NGR_R_SET_ARGS)
#else
setnetgrent_r(NGR_R_SET_CONST char *netgroup)
#endif
{
#if NGR_R_PRIVATE == 2
struct private *p;
#endif
char *tmp;
#if defined(NGR_R_SET_ARGS) && NGR_R_PRIVATE == 0
UNUSED(buf);
UNUSED(buflen);
#endif
DE_CONST(netgroup, tmp);
setnetgrent(tmp);
#if NGR_R_PRIVATE == 1
*buf = NULL;
#elif NGR_R_PRIVATE == 2
*buf = p = malloc(sizeof(struct private));
if (p == NULL)
#ifdef NGR_R_SET_RESULT
return (NGR_R_BAD);
#else
return;
#endif
p->buf = NULL;
#endif
#ifdef NGR_R_SET_RESULT
return (NGR_R_SET_RESULT);
#endif
}
NGR_R_END_RETURN
#ifdef NGR_R_END_ARGS
endnetgrent_r(NGR_R_END_ARGS)
#else
endnetgrent_r(void)
#endif
{
#if NGR_R_PRIVATE == 2
struct private *p = buf;
#endif
#if defined(NGR_R_SET_ARGS) && NGR_R_PRIVATE == 0
UNUSED(buf);
UNUSED(buflen);
#endif
endnetgrent();
#if NGR_R_PRIVATE == 1
if (*buf != NULL)
free(*buf);
*buf = NULL;
#elif NGR_R_PRIVATE == 2
if (p->buf != NULL)
free(p->buf);
free(p);
#endif
NGR_R_END_RESULT(NGR_R_OK);
}
/* Private */
static int
copy_protoent(NGR_R_CONST char **machinep, NGR_R_CONST char **userp,
NGR_R_CONST char **domainp, const char *mp, const char *up,
const char *dp, NGR_R_COPY_ARGS)
{
#if NGR_R_PRIVATE == 2
struct private *p = buf;
#endif
char *cp;
int n;
int len;
/* Find out the amount of space required to store the answer. */
len = 0;
if (mp != NULL) len += strlen(mp) + 1;
if (up != NULL) len += strlen(up) + 1;
if (dp != NULL) len += strlen(dp) + 1;
#if NGR_R_PRIVATE == 1
if (*buf != NULL)
free(*buf);
*buf = malloc(len);
if (*buf == NULL)
return(NGR_R_BAD);
cp = *buf;
#elif NGR_R_PRIVATE == 2
if (p->buf)
free(p->buf);
p->buf = malloc(len);
if (p->buf == NULL)
return(NGR_R_BAD);
cp = p->buf;
#else
if (len > (int)buflen) {
errno = ERANGE;
return (NGR_R_BAD);
}
cp = buf;
#endif
if (mp != NULL) {
n = strlen(mp) + 1;
strcpy(cp, mp);
*machinep = cp;
cp += n;
} else
*machinep = NULL;
if (up != NULL) {
n = strlen(up) + 1;
strcpy(cp, up);
*userp = cp;
cp += n;
} else
*userp = NULL;
if (dp != NULL) {
n = strlen(dp) + 1;
strcpy(cp, dp);
*domainp = cp;
cp += n;
} else
*domainp = NULL;
return (NGR_R_OK);
}
#else /* NGR_R_RETURN */
static int getnetgrent_r_unknown_system = 0;
#endif /* NGR_R_RETURN */
#endif /* !defined(_REENTRANT) || !defined(DO_PTHREADS) */
/*! \file */
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