/*
 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@

    Change History (most recent first):

$Log: dnssd_ipc.c,v $
Revision 1.9  2004/05/18 23:51:27  cheshire
Tidy up all checkin comments to use consistent "<rdar://problem/xxxxxxx>" format for bug numbers

Revision 1.8  2003/11/05 22:44:57  ksekar
<rdar://problem/3335230>: No bounds checking when reading data from client
Reviewed by: Stuart Cheshire

Revision 1.7  2003/08/12 19:56:25  cheshire
Update to APSL 2.0

 */

#include "dnssd_ipc.h"

void put_flags(const DNSServiceFlags flags, char **ptr)
    {
    memcpy(*ptr, &flags, sizeof(DNSServiceFlags));
    *ptr += sizeof(flags);
    }

DNSServiceFlags get_flags(char **ptr)
    {
    DNSServiceFlags flags;
	
    flags = *(DNSServiceFlags *)*ptr;
    *ptr += sizeof(DNSServiceFlags);
    return flags;
    }

void put_long(const uint32_t l, char **ptr)
    {

    *(uint32_t *)(*ptr) = l;
    *ptr += sizeof(uint32_t);
    }

uint32_t get_long(char **ptr)
    {
    uint32_t l;
	
    l = *(uint32_t *)(*ptr);
    *ptr += sizeof(uint32_t);
    return l;
    }

void put_error_code(const DNSServiceErrorType error, char **ptr)
    {
    memcpy(*ptr, &error, sizeof(error));
    *ptr += sizeof(DNSServiceErrorType);
    }

DNSServiceErrorType get_error_code(char **ptr)
    {
    DNSServiceErrorType error;
	
    error = *(DNSServiceErrorType *)(*ptr);
    *ptr += sizeof(DNSServiceErrorType);
    return error;
    }

void put_short(const uint16_t s, char **ptr)
    {
    *(uint16_t *)(*ptr) = s;
    *ptr += sizeof(uint16_t);
    }

uint16_t get_short(char **ptr)
    {
    uint16_t s;

    s = *(uint16_t *)(*ptr);
    *ptr += sizeof(uint16_t);
    return s;
    }


int put_string(const char *str, char **ptr)
    {
    if (!str) str = "";
    strcpy(*ptr, str);
    *ptr += strlen(str) + 1;
    return 0;
    }

int get_string(char **ptr, char *buffer, int buflen)
    {
    int overrun;
    
    overrun = (int)strlen(*ptr) <  buflen ? 0 : -1;
    strncpy(buffer, *ptr,  buflen - 1);
    buffer[buflen - 1] = '\0';
    *ptr += strlen(buffer) + 1;
    return overrun;
    }	

void put_rdata(const int rdlen, const char *rdata, char **ptr)
    {
    memcpy(*ptr, rdata, rdlen);
    *ptr += rdlen;	
    }

char *get_rdata(char **ptr, int rdlen)
    {
    char *rd;
		
    rd = *ptr;
    *ptr += rdlen;
    return rd;
    }