inetreply.cpp   [plain text]

/*
 * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
 * 
 * The contents of this file constitute Original Code as defined in and are
 * subject to the Apple Public Source License Version 1.2 (the 'License').
 * You may not use this file except in compliance with the License. Please obtain
 * a copy of the License at http://www.apple.com/publicsource and read it before
 * using this file.
 * 
 * This 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.
 */


//
// inetreply - manage Internet-standard reply strings
//
#include "inetreply.h"
#include <Security/debugging.h>
#include <ctype.h>

namespace Security {
namespace IPPlusPlus {


//
// Construct an InetReply object from a WRITABLE buffer.
// The buffer will be alterered by this constructor, and needs to be left alone
// until the InetReply object is destroyed.
//
InetReply::InetReply(const char *buffer) : mBuffer(buffer)
{
    analyze();
}

void InetReply::analyze()
{
    // follow Internet rule #1: be lenient in what you accept
    /*const*/ char *p;				// (un-const is ANSI bogosity in strtol)
    mCode = strtol(mBuffer, &p, 10);
    if (p == mBuffer) {			// conversion failed
        mCode = -1;				// error indicator
        mSeparator = ' ';
        mMessage = "?invalid?";
        return;
    }
    if (!*p) {					// just "nnn" (tolerate)
        mCode = atoi(p);
        mSeparator = ' ';
        mMessage = "";
        return;
    }
    mSeparator = *p++;
    while (isspace(*p)) p++;
    mMessage = p;
}


//
// Continuation handling
//
bool InetReply::Continuation::operator () (const char *input)
{
    if (mActive && !strncmp(input, mTestString, 4))
        mActive = false;
    return mActive;
}

bool InetReply::Continuation::operator () (const InetReply &reply)
{
    if (!mActive && reply.isContinued()) {
        mActive = true;
        snprintf(mTestString, 4, "%03d", reply.code());
        mTestString[3] = ' ';	// no \0 left in this string
    }
    return mActive;
}


}	// end namespace IPPlusPlus
}	// end namespace Security