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advpack: Rewrite get_parameter to be able to handle an empty parameter.

This commit is contained in:
James Hawkins 2006-04-07 05:20:58 -05:00 committed by Alexandre Julliard
parent e0898f5e0e
commit cc4b01a0f1
1 changed files with 24 additions and 25 deletions
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49
dlls/advpack/files.c
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@ -452,29 +452,23 @@ HRESULT WINAPI DelNodeW( LPCWSTR pszFileOrDirName, DWORD dwFlags )
return ret;
}
/* returns the parameter at dwIndex in a list of parameters
* separated by the cSeparator character
*/
static LPSTR get_parameter(LPSTR szParameters, CHAR cSeparator, DWORD dwIndex)
/* sequentially returns pointers to parameters in a parameter list
* returns NULL if the parameter is empty, e.g. one,,three */
static LPSTR get_parameter(LPSTR *params, char separator)
{
LPSTR szParam = NULL;
DWORD i = 0;
LPSTR token = *params;
while (*szParameters && i < dwIndex)
{
if (*szParameters == cSeparator)
i++;
szParameters++;
}
if (!*szParameters)
if (!*params)
return NULL;
szParam = HeapAlloc(GetProcessHeap(), 0, lstrlenA(szParameters));
lstrcpyA(szParam, szParameters);
*params = strchr(*params, separator);
if (*params)
*(*params)++ = '\0';
return szParam;
if (!*token)
return NULL;
return token;
}
/***********************************************************************
@ -495,21 +489,26 @@ static LPSTR get_parameter(LPSTR szParameters, CHAR cSeparator, DWORD dwIndex)
HRESULT WINAPI DelNodeRunDLL32A( HWND hWnd, HINSTANCE hInst, LPSTR cmdline, INT show )
{
LPSTR szFilename, szFlags;
DWORD dwFlags;
LPSTR cmdline_copy, cmdline_ptr;
DWORD dwFlags = 0;
HRESULT res;
TRACE("(%s)\n", debugstr_a(cmdline));
TRACE("(%p, %p, %s, %i)\n", hWnd, hInst, debugstr_a(cmdline), show);
cmdline_copy = HeapAlloc(GetProcessHeap(), 0, lstrlenA(cmdline) + 1);
cmdline_ptr = cmdline_copy;
lstrcpyA(cmdline_copy, cmdline);
/* get the parameters at indexes 0 and 1 respectively */
szFilename = get_parameter(cmdline, ',', 0);
szFlags = get_parameter(cmdline, ',', 1);
szFilename = get_parameter(&cmdline_ptr, ',');
szFlags = get_parameter(&cmdline_ptr, ',');
dwFlags = atol(szFlags);
if (szFlags)
dwFlags = atol(szFlags);
res = DelNodeA(szFilename, dwFlags);
HeapFree(GetProcessHeap(), 0, szFilename);
HeapFree(GetProcessHeap(), 0, szFlags);
HeapFree(GetProcessHeap(), 0, cmdline_copy);
return res;
}