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/*---------------------------------------------------------------------------*
* PANSIFileSystemUNIXImpl.c *
* *
* Copyright 2007, 2008 Nuance Communciations, Inc. *
* *
* Licensed under the Apache License, Version 2.0 (the 'License'); *
* you may not use this file except in compliance with the License. *
* *
* You may obtain a copy of the License at *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an 'AS IS' BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*---------------------------------------------------------------------------*/
#include <sys/types.h>
#include <sys/stat.h>
#include "errno.h"
#include "PFileSystemImpl.h"
#include "PANSIFileSystem.h"
#include "PANSIFileSystemImpl.h"
#include "phashtable.h"
#include "LCHAR.h"
#include "plog.h"
ESR_ReturnCode PANSIFileSystemGetVirtualPathImpl(PFileSystem* self, LCHAR* path, size_t* len)
{
PANSIFileSystemImpl* impl = (PANSIFileSystemImpl*) self;
PHashTableEntry* entry;
LCHAR driveLetter = 0;
LCHAR* key;
LCHAR* value;
LCHAR* bestKey = NULL;
LCHAR* bestValue = NULL;
ESR_BOOL isAbsolute;
ESR_ReturnCode rc;
CHKLOG(rc, lstrtrim(path));
CHKLOG(rc, PFileSystemCanonicalSlashes(path));
CHKLOG(rc, PFileSystemIsAbsolutePath(path, &isAbsolute));
if (isAbsolute && path[0] != L('/'))
{
/* Skip drive letters in absolute paths */
driveLetter = path[0];
LSTRCPY(path, path + 2);
}
CHKLOG(rc, PHashTableEntryGetFirst(impl->directoryMap, &entry));
while (entry!=NULL)
{
CHKLOG(rc, PHashTableEntryGetKeyValue(entry, (void **)&key, (void **)&value));
if (LSTRSTR(path, value)==path)
{
/* File-system handles file path */
if (bestValue==NULL || LSTRLEN(value) > LSTRLEN(bestValue))
{
/* Found a better match -- the new key is a subdirectory of the previous bestKey */
bestKey = key;
bestValue = value;
}
}
CHKLOG(rc, PHashTableEntryAdvance(&entry));
}
if (bestKey == NULL)
{
rc = ESR_INVALID_STATE;
PLogError(L("PANSIFileSystem does not handle the specified path: %s"), path);
goto CLEANUP;
}
/* Delete the real-path */
LSTRCPY(path, path + LSTRLEN(bestValue));
/* Insert the virtual-path */
CHKLOG(rc, lstrinsert(bestKey, path, 0, len));
/* Bring back the drive letter */
if (driveLetter!=0)
{
CHKLOG(rc, lstrinsert(L("X:/"), path, LSTRLEN(bestKey), len));
path[LSTRLEN(bestKey)] = driveLetter;
}
return ESR_SUCCESS;
CLEANUP:
return rc;
}
ESR_ReturnCode PANSIFileSystemMkdirImpl(PFileSystem* self, const LCHAR* path)
{
LCHAR realPath[P_PATH_MAX];
size_t len;
ESR_ReturnCode rc;
passert(path!=NULL);
LSTRCPY(realPath, path);
len = P_PATH_MAX;
CHKLOG(rc, PANSIFileSystemGetRealPathImpl(self, realPath, &len));
if (mkdir(realPath, S_IRWXU|S_IRWXG|S_IRWXO ) != 0)
{
switch (errno)
{
case EEXIST:
return ESR_IDENTIFIER_COLLISION;
case ENOENT:
return ESR_NO_MATCH_ERROR;
default:
PLogError(L("ESR_INVALID_STATE"));
return ESR_INVALID_STATE;
}
}
return ESR_SUCCESS;
CLEANUP:
return rc;
}
ESR_ReturnCode PANSIFileSystemGetcwdImpl(PFileSystem* self, LCHAR* path, size_t* len)
{
ESR_ReturnCode rc;
if (path==NULL)
{
rc = ESR_INVALID_ARGUMENT;
PLogError(ESR_rc2str(rc));
goto CLEANUP;
}
if (getcwd(path, *len) == NULL)
{
switch (errno)
{
case ERANGE:
*len = P_PATH_MAX;
return ESR_BUFFER_OVERFLOW;
case ENOMEM:
default:
PLogError(L("ESR_INVALID_STATE"));
return ESR_INVALID_STATE;
}
}
CHKLOG(rc, PANSIFileSystemGetVirtualPathImpl(self, path, len));
return ESR_SUCCESS;
CLEANUP:
return rc;
}
ESR_ReturnCode PANSIFileSystemChdirImpl(PFileSystem* self, const LCHAR* path)
{
LCHAR realPath[P_PATH_MAX];
size_t len;
ESR_ReturnCode rc;
passert(path!=NULL);
LSTRCPY(realPath, path);
len = P_PATH_MAX;
CHKLOG(rc, PANSIFileSystemGetRealPathImpl(self, realPath, &len));
if ((*path != '\0') && (chdir(realPath) != 0))
return ESR_NO_MATCH_ERROR;
return ESR_SUCCESS;
CLEANUP:
return rc;
}
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