164 lines
3.4 KiB
C
164 lines
3.4 KiB
C
/* Copyright (c) 1994, Microsoft Corporation, all rights reserved
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**
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** parambuf.c
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** Double-NUL terminated buffer of "key=value" parameter routines.
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**
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** 03/14/94 Steve Cobb
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*/
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#include <windows.h>
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#include <string.h>
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#include <stdlib.h>
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#define INCL_PARAMBUF
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#include "ppputil.h"
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VOID
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AddFlagToParamBuf(
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IN CHAR* pszzBuf,
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IN CHAR* pszKey,
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IN BOOL fValue )
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/* Add a "key=value" entry with key 'pszKey' and value 'fValue' to
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** double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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*/
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{
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AddStringToParamBuf( pszzBuf, pszKey, (fValue) ? "1" : "0" );
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}
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VOID
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AddLongToParamBuf(
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IN CHAR* pszzBuf,
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IN CHAR* pszKey,
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IN LONG lValue )
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/* Add a "key=value" entry with key 'pszKey' and value 'lValue' to
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** double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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*/
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{
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CHAR szNum[ 33 + 1 ];
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_ltoa( lValue, szNum, 10 );
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AddStringToParamBuf( pszzBuf, pszKey, szNum );
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}
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VOID
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AddStringToParamBuf(
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IN CHAR* pszzBuf,
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IN CHAR* pszKey,
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IN CHAR* pszValue )
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/* Add a "key=value" entry with key 'pszKey' and value 'pszValue' to
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** double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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*/
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{
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CHAR* psz;
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INT cb;
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for (psz = pszzBuf; (cb = strlen( psz )) > 0; psz += cb + 1)
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;
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if (!pszValue)
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pszValue = "";
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strcpy( psz, pszKey );
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strcat( psz, "=" );
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strcat( psz, pszValue );
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psz[ strlen( psz ) + 1 ] = '\0';
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}
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VOID
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ClearParamBuf(
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IN OUT CHAR* pszzBuf )
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/* Clears double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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*/
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{
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pszzBuf[ 0 ] = pszzBuf[ 1 ] = '\0';
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}
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BOOL
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FindFlagInParamBuf(
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IN CHAR* pszzBuf,
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IN CHAR* pszKey,
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IN BOOL* pfValue )
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/* Loads caller's 'pfValue' with the flag value associated with the key
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** 'pszKey' in double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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**
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** Returns true if the parameter was found, false otherwise.
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*/
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{
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CHAR szBuf[ 2 ];
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if (FindStringInParamBuf( pszzBuf, pszKey, szBuf, 2 ))
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{
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*pfValue = (szBuf[ 0 ] == '1');
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return TRUE;
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}
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return FALSE;
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}
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BOOL
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FindLongInParamBuf(
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IN CHAR* pszzBuf,
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IN CHAR* pszKey,
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IN LONG* plValue )
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/* Loads caller's 'plValue' with the long value associated with the key
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** 'pszKey' in double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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**
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** Returns true if the parameter was found, false otherwise.
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*/
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{
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CHAR szBuf[ 33 + 1 ];
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if (FindStringInParamBuf( pszzBuf, pszKey, szBuf, 33 ))
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{
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*plValue = atol( szBuf );
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return TRUE;
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}
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return FALSE;
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}
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BOOL
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FindStringInParamBuf(
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IN CHAR* pszzBuf,
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IN CHAR* pszKey,
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IN CHAR* pchValueBuf,
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IN DWORD cbValueBuf )
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/* Loads caller's 'pchValueBuf' with the value associated with the key
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** 'pszKey' in double-NUL terminated buffer of "key=value"s 'pszzBuf'.
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** The string is truncated at 'cbValueBuf' if necessary.
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**
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** Returns true if the parameter was found, false otherwise.
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*/
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{
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INT cbSearchKey = strlen( pszKey );
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CHAR* psz;
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INT cb;
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for (psz = pszzBuf; (cb = strlen( psz )) > 0; psz += cb + 1)
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{
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CHAR* pszKeyEnd = strchr( psz, '=' );
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INT cbKey = (pszKeyEnd) ? (LONG)(pszKeyEnd - psz) : 0;
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if (cbKey == cbSearchKey && _strnicmp( psz, pszKey, cbKey ) == 0)
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{
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strncpy( pchValueBuf, pszKeyEnd + 1, cbValueBuf );
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return TRUE;
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}
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}
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return FALSE;
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}
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