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/*
* SCCS: @(#)inetoul.c 1.6 (96/11/04)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1993 X/Open Company Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieoctet system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/************************************************************************
SCCS: @(#)inetoul.c 1.6 96/11/04 TETware release 3.3
NAME: inetoul.c
PRODUCT: TETware
AUTHOR: Denis McConalogue, UniSoft Ltd.
DATE CREATED: August 1993
DESCRIPTION:
Convert an inet address of the form aa.bb.cc.dd to unsigned long.
Returns 0 if the char format address is invalid. Network byte
ordering is assumed.
MODIFICATIONS:
Aaron Plattner, April 2010
Fixed warnings when compiled with GCC's -Wall option.
************************************************************************/
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <errno.h>
#ifdef TCPTPI
# include <netinet/in.h>
#endif
#include "dtmac.h"
#include "error.h"
#include "dtetlib.h"
#define N_PARTS 4
unsigned long tet_inetoul(cp)
register char *cp;
{
#ifdef TCPTPI
unsigned long ip=0, base, part;
int i;
char c, *sp=cp;
for (i=0; i < N_PARTS; i++, cp++) {
/* Accumulate part up to `.' with 0x=hex, 0=octal,
anything else assumed decimal */
base = 10;
if (*cp == '0') {
base = 8, cp++;
if (*cp == 'X' || *cp == 'x')
base = 16, cp ++;
}
part = 0;
while ((c = *cp) && (c != '.')) {
if (isdigit(c)) {
part = (part*base) + (c-'0');
cp++;
}
else if (base == 16 && isxdigit(c)) {
part = (part*base) + (c+10-(islower(c)?'a':'A'));
cp++;
}
else if (*cp != '.') {
error(0, "bad format IP address", sp);
return (0);
}
}
ip = (ip << 8) + part;
}
return (htonl(ip));
#else
return ((unsigned long) 0);
#endif /* TCPTPI */
}
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