/**
* RTPathTraverseList callback used by RTProcCreateEx to locate the executable.
*/
static DECLCALLBACK(int) rtPathFindExec(char const *pchPath, size_t cchPath, void *pvUser1, void *pvUser2)
{
const char *pszExec = (const char *)pvUser1;
char *pszRealExec = (char *)pvUser2;
int rc = RTPathJoinEx(pszRealExec, RTPATH_MAX, pchPath, cchPath, pszExec, RTSTR_MAX);
if (RT_FAILURE(rc))
return rc;
if (!access(pszRealExec, X_OK))
return VINF_SUCCESS;
if ( errno == EACCES
|| errno == EPERM)
return RTErrConvertFromErrno(errno);
return VERR_TRY_AGAIN;
}
/**
* Corrects the casing of the final component
*
* @returns
* @param pClient .
* @param pszFullPath .
* @param pszStartComponent .
*/
static int vbsfCorrectCasing(SHFLCLIENTDATA *pClient, char *pszFullPath, char *pszStartComponent)
{
Log2(("vbsfCorrectCasing: %s %s\n", pszFullPath, pszStartComponent));
AssertReturn((uintptr_t)pszFullPath < (uintptr_t)pszStartComponent - 1U, VERR_INTERNAL_ERROR_2);
AssertReturn(pszStartComponent[-1] == RTPATH_DELIMITER, VERR_INTERNAL_ERROR_5);
/*
* Allocate a buffer that can hold really long file name entries as well as
* the initial search pattern.
*/
size_t cchComponent = strlen(pszStartComponent);
size_t cchParentDir = pszStartComponent - pszFullPath;
size_t cchFullPath = cchParentDir + cchComponent;
Assert(strlen(pszFullPath) == cchFullPath);
size_t cbDirEntry = 4096;
if (cchFullPath + 4 > cbDirEntry - RT_OFFSETOF(RTDIRENTRYEX, szName))
cbDirEntry = RT_OFFSETOF(RTDIRENTRYEX, szName) + cchFullPath + 4;
PRTDIRENTRYEX pDirEntry = (PRTDIRENTRYEX)RTMemAlloc(cbDirEntry);
if (pDirEntry == NULL)
return VERR_NO_MEMORY;
/*
* Construct the search criteria in the szName member of pDirEntry.
*/
/** @todo This is quite inefficient, especially for directories with many
* files. If any of the typically case sensitive host systems start
* supporting opendir wildcard filters, it would make sense to build
* one here with '?' for case foldable charaters. */
/** @todo Use RTDirOpen here and drop the whole uncessary path copying? */
int rc = RTPathJoinEx(pDirEntry->szName, cbDirEntry - RT_OFFSETOF(RTDIRENTRYEX, szName),
pszFullPath, cchParentDir,
RT_STR_TUPLE("*"));
AssertRC(rc);
if (RT_SUCCESS(rc))
{
RTDIR hSearch = NULL;
rc = RTDirOpenFiltered(&hSearch, pDirEntry->szName, RTDIRFILTER_WINNT, 0 /*fFlags*/);
if (RT_SUCCESS(rc))
{
for (;;)
{
size_t cbDirEntrySize = cbDirEntry;
rc = RTDirReadEx(hSearch, pDirEntry, &cbDirEntrySize, RTFSOBJATTRADD_NOTHING, SHFL_RT_LINK(pClient));
if (rc == VERR_NO_MORE_FILES)
break;
if ( rc != VINF_SUCCESS
&& rc != VWRN_NO_DIRENT_INFO)
{
if ( rc == VERR_NO_TRANSLATION
|| rc == VERR_INVALID_UTF8_ENCODING)
continue;
AssertMsgFailed(("%Rrc\n", rc));
break;
}
Log2(("vbsfCorrectCasing: found %s\n", &pDirEntry->szName[0]));
if ( pDirEntry->cbName == cchComponent
&& !RTStrICmp(pszStartComponent, &pDirEntry->szName[0]))
{
Log(("Found original name %s (%s)\n", &pDirEntry->szName[0], pszStartComponent));
strcpy(pszStartComponent, &pDirEntry->szName[0]);
rc = VINF_SUCCESS;
break;
}
}
RTDirClose(hSearch);
}
}
if (RT_FAILURE(rc))
Log(("vbsfCorrectCasing %s failed with %Rrc\n", pszStartComponent, rc));
RTMemFree(pDirEntry);
return rc;
}