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NeoStats-opsb/libopm/compat.c
2003-10-22 10:48:53 +00:00

70 lines
1.6 KiB
C

/* vim: set shiftwidth=3 softtabstop=3 expandtab: */
/*
* Copyright (C) 2002 Andy Smith
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to
*
* The Free Software Foundation, Inc.
* 59 Temple Place - Suite 330
* Boston, MA 02111-1307, USA
*/
#include "modconfig.h"
#include <stdio.h>
#ifdef STDC_HEADERS
# include <string.h>
#endif
#ifndef HAVE_INET_ATON
# include <netinet/in.h>
#endif
#include "compat.h"
#include "opm.h"
RCSID("$Id$");
#ifndef HAVE_INET_ATON
/*
* An implementation of inet_aton for those systems that don't have it
* (Solaris, ...)
*/
int libopm_inet_aton(const char *cp, struct in_addr *inp)
{
unsigned int a1, a2, a3, a4;
unsigned long ret;
if (strcmp(cp, "255.255.255.255") == 0) {
inp->s_addr = (unsigned) -1;
return 0;
}
if (sscanf(cp, "%u.%u.%u.%u", &a1, &a2, &a3, &a4) != 4 ||
a1 > 255 || a2 > 255 || a3 > 255 || a4 > 255) {
return 0;
}
ret = (a1 << 24) | (a2 << 16) | (a3 << 8) | a4;
inp->s_addr = htonl(ret);
if (inp->s_addr == (unsigned) -1) {
return 0;
}
return 1;
}
#endif