f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/* $NetBSD: getservbyport_r.c,v 1.9 2012/03/13 21:13:41 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1983, 1993
|
|
* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
#if 0
|
|
static char sccsid[] = "@(#)getservbyport.c 8.1 (Berkeley) 6/4/93";
|
|
#else
|
|
__RCSID("$NetBSD: getservbyport_r.c,v 1.9 2012/03/13 21:13:41 christos Exp $");
|
|
#endif
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include "namespace.h"
|
|
#include <cdbr.h>
|
|
#include <netdb.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "servent.h"
|
|
|
|
#ifdef __weak_alias
|
|
__weak_alias(getservbyport_r,_getservbyport_r)
|
|
#endif
|
|
|
|
static struct servent *
|
|
_servent_getbyport(struct servent_data *sd, struct servent *sp, int port,
|
|
const char *proto)
|
|
{
|
|
|
|
if ((sd->flags & (_SV_CDB | _SV_PLAINFILE)) == 0)
|
|
return NULL;
|
|
|
|
if (sd->flags & _SV_CDB) {
|
|
uint8_t buf[255 + 4];
|
|
size_t protolen;
|
|
const uint8_t *data;
|
|
const void *data_ptr;
|
|
size_t datalen;
|
|
|
|
port = be16toh(port);
|
|
|
|
if (proto != NULL) {
|
|
protolen = strlen(proto);
|
|
if (protolen == 0 || protolen > 255)
|
|
return NULL;
|
|
} else
|
|
protolen = 0;
|
|
if (port < 0 || port > 65536)
|
|
return NULL;
|
|
|
|
buf[0] = 0;
|
|
buf[1] = (uint8_t)protolen;
|
|
be16enc(buf + 2, port);
|
|
memcpy(buf + 4, proto, protolen);
|
|
|
|
if (cdbr_find(sd->cdb, buf, 4 + protolen,
|
|
&data_ptr, &datalen))
|
|
return NULL;
|
|
|
|
if (datalen < protolen + 4)
|
|
return NULL;
|
|
|
|
data = data_ptr;
|
|
if (be16dec(data) != port)
|
|
return NULL;
|
|
if (protolen) {
|
|
if (data[2] != protolen)
|
|
return NULL;
|
|
if (memcmp(data + 3, proto, protolen + 1))
|
|
return NULL;
|
|
}
|
|
return _servent_parsedb(sd, sp, data, datalen);
|
|
} else {
|
|
while (_servent_getline(sd) != -1) {
|
|
if (_servent_parseline(sd, sp) == NULL)
|
|
continue;
|
|
if (sp->s_port != port)
|
|
continue;
|
|
if (proto == NULL || strcmp(sp->s_proto, proto) == 0)
|
|
return sp;
|
|
}
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
struct servent *
|
|
getservbyport_r(int port, const char *proto, struct servent *sp,
|
|
struct servent_data *sd)
|
|
{
|
|
setservent_r(sd->flags & _SV_STAYOPEN, sd);
|
|
sp = _servent_getbyport(sd, sp, port, proto);
|
|
if (!(sd->flags & _SV_STAYOPEN))
|
|
_servent_close(sd);
|
|
return sp;
|
|
}
|