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//---------------------------------------------------------------------------------------
// functions.m created by erik
// @(#)$Id: functions.m,v 2.0 2002/08/16 18:12:49 erik Exp $
//
// Copyright (c) 1997-2000 by Erik Doernenburg. All rights reserved.
//
// Permission to use, copy, modify and distribute this software and its documentation
// is hereby granted, provided that both the copyright notice and this permission
// notice appear in all copies of the software, derivative works or modified versions,
// and any portions thereof, and that both notices appear in supporting documentation,
// and that credit is given to Erik Doernenburg in all documents and publicity
// pertaining to direct or indirect use of this code or its derivatives.
//
// THIS IS EXPERIMENTAL SOFTWARE AND IT IS KNOWN TO HAVE BUGS, SOME OF WHICH MAY HAVE
// SERIOUS CONSEQUENCES. THE COPYRIGHT HOLDER ALLOWS FREE USE OF THIS SOFTWARE IN ITS
// "AS IS" CONDITION. THE COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY
// DAMAGES WHATSOEVER RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE
// OR OF ANY DERIVATIVE WORK.
//---------------------------------------------------------------------------------------
#import <Foundation/Foundation.h>
#import "osdep.h"
#import "functions.h"
NSString *EDStringFromInAddr(struct in_addr address)
{
const unsigned char *bytes = (void *)&address;
return [NSString stringWithFormat:@"%d.%d.%d.%d", bytes[0], bytes[1], bytes[2], bytes[3]];
}
struct in_addr EDInAddrFromString(NSString *string)
{
NSScanner *scanner;
int byte, i;
unsigned int numaddr;
struct in_addr inaddr;
scanner = [NSScanner scannerWithString:string];
numaddr = 0;
for(i = 0; i < 4; i++)
{
if(([scanner scanInt:&byte] == NO) || (byte < 0) || (byte > 255))
[NSException raise:NSInvalidArgumentException format:@"Cannot interpret \"%@\" as an internet address.", string];
if((i < 3) && ([scanner scanString:@"." intoString:NULL] == NO))
[NSException raise:NSInvalidArgumentException format:@"Cannot interpret \"%@\" as an internet address.", string];
numaddr *= 256;
numaddr += byte;
}
inaddr.s_addr = NSSwapHostIntToBig(numaddr);
return inaddr;
}
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