cdsa/cdsa_utilities/inetreply.cpp

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // inetreply - manage Internet-standard reply strings
  21 //
  22 #include "inetreply.h"
  23 #include <Security/debugging.h>
  24 #include <ctype.h>
  25
  26 namespace Security {
  27 namespace IPPlusPlus {
  28
  29
  30 //
  31 // Construct an InetReply object from a WRITABLE buffer.
  32 // The buffer will be alterered by this constructor, and needs to be left alone
  33 // until the InetReply object is destroyed.
  34 //
  35 InetReply::InetReply(const char *buffer) : mBuffer(buffer)
  36 {
  37     analyze();
  38 }
  39
  40 void InetReply::analyze()
  41 {
  42     // follow Internet rule #1: be lenient in what you accept
  43     /*const*/ char *p;                          // (un-const is ANSI bogosity in strtol)
  44     mCode = strtol(mBuffer, &p, 10);
  45     if (p == mBuffer) {                 // conversion failed
  46         mCode = -1;                             // error indicator
  47         mSeparator = ' ';
  48         mMessage = "?invalid?";
  49         return;
  50     }
  51     if (!*p) {                                  // just "nnn" (tolerate)
  52         mCode = atoi(p);
  53         mSeparator = ' ';
  54         mMessage = "";
  55         return;
  56     }
  57     mSeparator = *p++;
  58     while (isspace(*p)) p++;
  59     mMessage = p;
  60 }
  61
  62
  63 //
  64 // Continuation handling
  65 //
  66 bool InetReply::Continuation::operator () (const char *input)
  67 {
  68     if (mActive && !strncmp(input, mTestString, 4))
  69         mActive = false;
  70     return mActive;
  71 }
  72
  73 bool InetReply::Continuation::operator () (const InetReply &reply)
  74 {
  75     if (!mActive && reply.isContinued()) {
  76         mActive = true;
  77         snprintf(mTestString, 4, "%03d", reply.code());
  78         mTestString[3] = ' ';   // no \0 left in this string
  79     }
  80     return mActive;
  81 }
  82
  83
  84 }       // end namespace IPPlusPlus
  85 }       // end namespace Security