104 lines
2.1 KiB
C++
104 lines
2.1 KiB
C++
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/*
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Copyright (c) 1997-1999 Microsoft Corporation
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*/
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#include "sdppch.h"
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#include "sdpgen.h"
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#include "sdpver.h"
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// maximum value in a ushort variable
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const USHORT USHORT_MAX = -1;
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// no transition table for the base class
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// no need to set the start state as the parse engine is not used
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SDP_VERSION::SDP_VERSION(
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)
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: SDP_VALUE(SDP_INVALID_VERSION_FIELD, VERSION_STRING)
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{
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}
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void
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SDP_VERSION::InternalReset(
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)
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{
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m_Version.Reset();
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}
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BOOL
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SDP_VERSION::InternalParseLine(
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IN OUT CHAR *&Line
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)
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{
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CHAR SeparatorChar = '\0';
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// identify the token. if one of the the separator characters is found, replace
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// it by EOS and return the separator char. if none of the separator characters are
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// found, return NULL (ex. if EOS found first, return NULL)
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CHAR *Token = GetToken(Line, 1, NEWLINE_STRING, SeparatorChar);
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// when the block goes out of scope,
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// set the EOS character to the token separator character
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LINE_TERMINATOR LineTerminator(Token, SeparatorChar);
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// if there is no such token
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if ( !LineTerminator.IsLegal() )
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{
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SetLastError(m_ErrorCode);
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return FALSE;
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}
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// advance the line to the start of the next token
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Line += (LineTerminator.GetLength() + 1);
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// get the session id decimal value
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if ( !m_Version.ParseToken(Token) )
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{
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SetLastError(SDP_INVALID_VERSION_FIELD);
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return FALSE;
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}
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// check if the value is legal
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if ( (USHORT_MAX == m_Version.GetValue()) ||
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(CURRENT_SDP_VERSION < m_Version.GetValue()) )
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{
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SetLastError(SDP_INVALID_VERSION_FIELD);
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return FALSE;
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}
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INT_PTR Index;
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// fill in the field and separator char arrays
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try
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{
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Index = m_SeparatorCharArray.Add(CHAR_NEWLINE);
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}
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catch(...)
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{
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SetLastError(ERROR_OUTOFMEMORY);
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return FALSE;
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}
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try
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{
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m_FieldArray.Add(&m_Version);
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}
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catch(...)
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{
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m_SeparatorCharArray.RemoveAt(Index);
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SetLastError(ERROR_OUTOFMEMORY);
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return FALSE;
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}
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return TRUE;
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}
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