Security-55163.44.tar.gz

[apple/security.git] / libsecurity_utilities / lib / inetreply.cpp

diff --git a/libsecurity_utilities/lib/inetreply.cpp b/libsecurity_utilities/lib/inetreply.cpp
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+/*
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * 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@
+ */
+
+
+//
+// inetreply - manage Internet-standard reply strings
+//
+#include "inetreply.h"
+#include <security_utilities/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