158 lines
3.7 KiB
C++
158 lines
3.7 KiB
C++
#include "utils.h"
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//***************************************************************************
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//*
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//* purpose:
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//*
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//***************************************************************************
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LPSTR StripWhitespace( LPSTR pszString )
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{
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LPSTR pszTemp = NULL;
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if ( pszString == NULL )
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{
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return NULL;
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}
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while ( *pszString == ' ' || *pszString == '\t' )
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{
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pszString += 1;
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}
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// Catch case where string consists entirely of whitespace or empty string.
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if ( *pszString == '\0' )
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{
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return pszString;
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}
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pszTemp = pszString;
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pszString += lstrlenA(pszString) - 1;
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while ( *pszString == ' ' || *pszString == '\t' )
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{
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*pszString = '\0';
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pszString -= 1;
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}
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return pszTemp;
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}
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//***************************************************************************
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//*
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//* purpose: return back a Alocated wide string from a ansi string
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//* caller must free the returned back pointer with GlobalFree()
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//*
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//***************************************************************************
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LPWSTR MakeWideStrFromAnsi(UINT uiCodePage, LPSTR psz)
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{
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LPWSTR pwsz;
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int i;
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// make sure they gave us something
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if (!psz)
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{
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return NULL;
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}
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// compute the length
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i = MultiByteToWideChar(uiCodePage, 0, psz, -1, NULL, 0);
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if (i <= 0) return NULL;
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// allocate memory in that length
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pwsz = (LPWSTR) GlobalAlloc(GPTR,i * sizeof(WCHAR));
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if (!pwsz) return NULL;
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// clear out memory
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memset(pwsz, 0, wcslen(pwsz) * sizeof(WCHAR));
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// convert the ansi string into unicode
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i = MultiByteToWideChar(uiCodePage, 0, (LPSTR) psz, -1, pwsz, i);
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if (i <= 0)
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{
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GlobalFree(pwsz);
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pwsz = NULL;
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return NULL;
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}
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// make sure ends with null
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pwsz[i - 1] = 0;
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// return the pointer
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return pwsz;
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}
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BOOL IsFileExist(LPCTSTR szFile)
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{
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// Check if the file has expandable Environment strings
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LPTSTR pch = NULL;
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pch = _tcschr( (LPTSTR) szFile, _T('%'));
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if (pch)
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{
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TCHAR szValue[_MAX_PATH];
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_tcscpy(szValue,szFile);
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if (!ExpandEnvironmentStrings( (LPCTSTR)szFile, szValue, sizeof(szValue)/sizeof(TCHAR)))
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{_tcscpy(szValue,szFile);}
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return (GetFileAttributes(szValue) != 0xFFFFFFFF);
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}
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else
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{
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return (GetFileAttributes(szFile) != 0xFFFFFFFF);
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}
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}
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void AddPath(LPTSTR szPath, LPCTSTR szName )
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{
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LPTSTR p = szPath;
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// Find end of the string
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while (*p){p = _tcsinc(p);}
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// If no trailing backslash then add one
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if (*(_tcsdec(szPath, p)) != _T('\\'))
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{_tcscat(szPath, _T("\\"));}
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// if there are spaces precluding szName, then skip
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while ( *szName == ' ' ) szName = _tcsinc(szName);;
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// Add new name to existing path string
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_tcscat(szPath, szName);
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}
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int DoesThisSectionExist(IN HINF hFile, IN LPCTSTR szTheSection)
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{
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int iReturn = FALSE;
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INFCONTEXT Context;
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// go to the beginning of the section in the INF file
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if (SetupFindFirstLine(hFile, szTheSection, NULL, &Context))
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{iReturn = TRUE;}
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return iReturn;
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}
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void DoExpandEnvironmentStrings(LPTSTR szFile)
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{
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TCHAR szValue[_MAX_PATH];
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_tcscpy(szValue,szFile);
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// Check if the file has expandable Environment strings
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LPTSTR pch = NULL;
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pch = _tcschr( (LPTSTR) szFile, _T('%'));
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if (pch)
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{
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if (!ExpandEnvironmentStrings( (LPCTSTR)szFile, szValue, sizeof(szValue)/sizeof(TCHAR)))
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{
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_tcscpy(szValue,szFile);
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}
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}
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_tcscpy(szFile,szValue);
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return;
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}
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