FreeRDP/winpr/libwinpr/file/file.c
2013-07-30 10:57:54 -04:00

626 lines
13 KiB
C

/**
* WinPR: Windows Portable Runtime
* File Functions
*
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <winpr/crt.h>
#include <winpr/path.h>
#include <winpr/handle.h>
#include <winpr/file.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
/**
* api-ms-win-core-file-l1-2-0.dll:
*
* CreateFileA
* CreateFileW
* CreateFile2
* DeleteFileA
* DeleteFileW
* CreateDirectoryA
* CreateDirectoryW
* RemoveDirectoryA
* RemoveDirectoryW
* CompareFileTime
* DefineDosDeviceW
* DeleteVolumeMountPointW
* FileTimeToLocalFileTime
* LocalFileTimeToFileTime
* FindClose
* FindCloseChangeNotification
* FindFirstChangeNotificationA
* FindFirstChangeNotificationW
* FindFirstFileA
* FindFirstFileExA
* FindFirstFileExW
* FindFirstFileW
* FindFirstVolumeW
* FindNextChangeNotification
* FindNextFileA
* FindNextFileW
* FindNextVolumeW
* FindVolumeClose
* GetDiskFreeSpaceA
* GetDiskFreeSpaceExA
* GetDiskFreeSpaceExW
* GetDiskFreeSpaceW
* GetDriveTypeA
* GetDriveTypeW
* GetFileAttributesA
* GetFileAttributesExA
* GetFileAttributesExW
* GetFileAttributesW
* GetFileInformationByHandle
* GetFileSize
* GetFileSizeEx
* GetFileTime
* GetFileType
* GetFinalPathNameByHandleA
* GetFinalPathNameByHandleW
* GetFullPathNameA
* GetFullPathNameW
* GetLogicalDrives
* GetLogicalDriveStringsW
* GetLongPathNameA
* GetLongPathNameW
* GetShortPathNameW
* GetTempFileNameW
* GetTempPathW
* GetVolumeInformationByHandleW
* GetVolumeInformationW
* GetVolumeNameForVolumeMountPointW
* GetVolumePathNamesForVolumeNameW
* GetVolumePathNameW
* QueryDosDeviceW
* SetFileAttributesA
* SetFileAttributesW
* SetFileTime
* SetFileValidData
* SetFileInformationByHandle
* ReadFile
* ReadFileEx
* ReadFileScatter
* WriteFile
* WriteFileEx
* WriteFileGather
* FlushFileBuffers
* SetEndOfFile
* SetFilePointer
* SetFilePointerEx
* LockFile
* LockFileEx
* UnlockFile
* UnlockFileEx
*/
/**
* File System Behavior in the Microsoft Windows Environment:
* http://download.microsoft.com/download/4/3/8/43889780-8d45-4b2e-9d3a-c696a890309f/File%20System%20Behavior%20Overview.pdf
*/
#ifndef _WIN32
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <time.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <fcntl.h>
#include <sys/un.h>
#include <sys/stat.h>
#include <sys/socket.h>
#ifdef ANDROID
#include <sys/vfs.h>
#else
#include <sys/statvfs.h>
#endif
#include "../handle/handle.h"
#include "../pipe/pipe.h"
HANDLE CreateFileA(LPCSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
{
char* name;
int status;
HANDLE hNamedPipe;
unsigned long flags;
struct sockaddr_un s;
WINPR_NAMED_PIPE* pNamedPipe;
if (!lpFileName)
return INVALID_HANDLE_VALUE;
name = GetNamedPipeNameWithoutPrefixA(lpFileName);
if (!name)
return INVALID_HANDLE_VALUE;
free(name);
pNamedPipe = (WINPR_NAMED_PIPE*) malloc(sizeof(WINPR_NAMED_PIPE));
hNamedPipe = (HANDLE) pNamedPipe;
WINPR_HANDLE_SET_TYPE(pNamedPipe, HANDLE_TYPE_NAMED_PIPE);
pNamedPipe->name = _strdup(lpFileName);
pNamedPipe->dwOpenMode = 0;
pNamedPipe->dwPipeMode = 0;
pNamedPipe->nMaxInstances = 0;
pNamedPipe->nOutBufferSize = 0;
pNamedPipe->nInBufferSize = 0;
pNamedPipe->nDefaultTimeOut = 0;
pNamedPipe->lpFileName = GetNamedPipeNameWithoutPrefixA(lpFileName);
pNamedPipe->lpFilePath = GetNamedPipeUnixDomainSocketFilePathA(lpFileName);
pNamedPipe->clientfd = socket(PF_LOCAL, SOCK_STREAM, 0);
pNamedPipe->serverfd = -1;
if (0)
{
flags = fcntl(pNamedPipe->clientfd, F_GETFL);
flags = flags | O_NONBLOCK;
fcntl(pNamedPipe->clientfd, F_SETFL, flags);
}
ZeroMemory(&s, sizeof(struct sockaddr_un));
s.sun_family = AF_UNIX;
strcpy(s.sun_path, pNamedPipe->lpFilePath);
status = connect(pNamedPipe->clientfd, (struct sockaddr*) &s, sizeof(struct sockaddr_un));
if (status != 0)
return INVALID_HANDLE_VALUE;
return hNamedPipe;
}
HANDLE CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
{
return NULL;
}
BOOL DeleteFileA(LPCSTR lpFileName)
{
return TRUE;
}
BOOL DeleteFileW(LPCWSTR lpFileName)
{
return TRUE;
}
BOOL ReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
{
ULONG Type;
PVOID Object;
if (!winpr_Handle_GetInfo(hFile, &Type, &Object))
return FALSE;
if (Type == HANDLE_TYPE_ANONYMOUS_PIPE)
{
int status;
WINPR_PIPE* pipe;
pipe = (WINPR_PIPE*) Object;
status = read(pipe->fd, lpBuffer, nNumberOfBytesToRead);
*lpNumberOfBytesRead = status;
return TRUE;
}
else if (Type == HANDLE_TYPE_NAMED_PIPE)
{
int status;
WINPR_NAMED_PIPE* pipe;
pipe = (WINPR_NAMED_PIPE*) Object;
status = nNumberOfBytesToRead;
if (pipe->clientfd != -1)
status = read(pipe->clientfd, lpBuffer, nNumberOfBytesToRead);
else
return FALSE;
if (status < 0)
{
*lpNumberOfBytesRead = 0;
return FALSE;
}
*lpNumberOfBytesRead = status;
return TRUE;
}
return FALSE;
}
BOOL ReadFileEx(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
LPOVERLAPPED lpOverlapped, LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
return TRUE;
}
BOOL ReadFileScatter(HANDLE hFile, FILE_SEGMENT_ELEMENT aSegmentArray[],
DWORD nNumberOfBytesToRead, LPDWORD lpReserved, LPOVERLAPPED lpOverlapped)
{
return TRUE;
}
BOOL WriteFile(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite,
LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
{
ULONG Type;
PVOID Object;
if (!winpr_Handle_GetInfo(hFile, &Type, &Object))
return FALSE;
if (Type == HANDLE_TYPE_ANONYMOUS_PIPE)
{
int status;
WINPR_PIPE* pipe;
pipe = (WINPR_PIPE*) Object;
status = write(pipe->fd, lpBuffer, nNumberOfBytesToWrite);
*lpNumberOfBytesWritten = status;
return TRUE;
}
else if (Type == HANDLE_TYPE_NAMED_PIPE)
{
int status;
WINPR_NAMED_PIPE* pipe;
pipe = (WINPR_NAMED_PIPE*) Object;
status = nNumberOfBytesToWrite;
if (pipe->clientfd != -1)
status = write(pipe->clientfd, lpBuffer, nNumberOfBytesToWrite);
else
return FALSE;
if (status < 0)
{
*lpNumberOfBytesWritten = 0;
return FALSE;
}
*lpNumberOfBytesWritten = status;
return TRUE;
}
return FALSE;
}
BOOL WriteFileEx(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite,
LPOVERLAPPED lpOverlapped, LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
return TRUE;
}
BOOL WriteFileGather(HANDLE hFile, FILE_SEGMENT_ELEMENT aSegmentArray[],
DWORD nNumberOfBytesToWrite, LPDWORD lpReserved, LPOVERLAPPED lpOverlapped)
{
return TRUE;
}
BOOL FlushFileBuffers(HANDLE hFile)
{
return TRUE;
}
BOOL SetEndOfFile(HANDLE hFile)
{
return TRUE;
}
DWORD SetFilePointer(HANDLE hFile, LONG lDistanceToMove,
PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod)
{
return TRUE;
}
BOOL SetFilePointerEx(HANDLE hFile, LARGE_INTEGER liDistanceToMove,
PLARGE_INTEGER lpNewFilePointer, DWORD dwMoveMethod)
{
return TRUE;
}
BOOL LockFile(HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh)
{
return TRUE;
}
BOOL LockFileEx(HANDLE hFile, DWORD dwFlags, DWORD dwReserved,
DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh, LPOVERLAPPED lpOverlapped)
{
return TRUE;
}
BOOL UnlockFile(HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToUnlockLow, DWORD nNumberOfBytesToUnlockHigh)
{
return TRUE;
}
BOOL UnlockFileEx(HANDLE hFile, DWORD dwReserved, DWORD nNumberOfBytesToUnlockLow,
DWORD nNumberOfBytesToUnlockHigh, LPOVERLAPPED lpOverlapped)
{
return TRUE;
}
struct _WIN32_FILE_SEARCH
{
DIR* pDir;
LPSTR lpPath;
LPSTR lpPattern;
struct dirent* pDirent;
};
typedef struct _WIN32_FILE_SEARCH WIN32_FILE_SEARCH;
HANDLE FindFirstFileA(LPCSTR lpFileName, LPWIN32_FIND_DATAA lpFindFileData)
{
char* p;
int index;
int length;
struct stat fileStat;
WIN32_FILE_SEARCH* pFileSearch;
ZeroMemory(lpFindFileData, sizeof(WIN32_FIND_DATAA));
pFileSearch = (WIN32_FILE_SEARCH*) malloc(sizeof(WIN32_FILE_SEARCH));
ZeroMemory(pFileSearch, sizeof(WIN32_FILE_SEARCH));
/* Separate lpFileName into path and pattern components */
p = strrchr(lpFileName, '/');
if (!p)
p = strrchr(lpFileName, '\\');
index = (p - lpFileName);
length = (p - lpFileName);
pFileSearch->lpPath = (LPSTR) malloc(length + 1);
CopyMemory(pFileSearch->lpPath, lpFileName, length);
pFileSearch->lpPath[length] = '\0';
length = strlen(lpFileName) - index;
pFileSearch->lpPattern = (LPSTR) malloc(length + 1);
CopyMemory(pFileSearch->lpPattern, &lpFileName[index + 1], length);
pFileSearch->lpPattern[length] = '\0';
/* Check if the path is a directory */
if (lstat(pFileSearch->lpPath, &fileStat) < 0)
{
free(pFileSearch);
return INVALID_HANDLE_VALUE; /* stat error */
}
if (S_ISDIR(fileStat.st_mode) == 0)
{
free(pFileSearch);
return INVALID_HANDLE_VALUE; /* not a directory */
}
/* Open directory for reading */
pFileSearch->pDir = opendir(pFileSearch->lpPath);
if (!pFileSearch->pDir)
{
free(pFileSearch);
return INVALID_HANDLE_VALUE; /* failed to open directory */
}
while ((pFileSearch->pDirent = readdir(pFileSearch->pDir)) != NULL)
{
if ((strcmp(pFileSearch->pDirent->d_name, ".") == 0) || (strcmp(pFileSearch->pDirent->d_name, "..") == 0))
{
/* skip "." and ".." */
continue;
}
if (FilePatternMatchA(pFileSearch->pDirent->d_name, pFileSearch->lpPattern))
{
strcpy(lpFindFileData->cFileName, pFileSearch->pDirent->d_name);
return (HANDLE) pFileSearch;
}
}
return INVALID_HANDLE_VALUE;
}
HANDLE FindFirstFileW(LPCWSTR lpFileName, LPWIN32_FIND_DATAW lpFindFileData)
{
return NULL;
}
HANDLE FindFirstFileExA(LPCSTR lpFileName, FINDEX_INFO_LEVELS fInfoLevelId, LPVOID lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp, LPVOID lpSearchFilter, DWORD dwAdditionalFlags)
{
return NULL;
}
HANDLE FindFirstFileExW(LPCWSTR lpFileName, FINDEX_INFO_LEVELS fInfoLevelId, LPVOID lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp, LPVOID lpSearchFilter, DWORD dwAdditionalFlags)
{
return NULL;
}
BOOL FindNextFileA(HANDLE hFindFile, LPWIN32_FIND_DATAA lpFindFileData)
{
WIN32_FILE_SEARCH* pFileSearch;
if (!hFindFile)
return FALSE;
if (hFindFile == INVALID_HANDLE_VALUE)
return FALSE;
pFileSearch = (WIN32_FILE_SEARCH*) hFindFile;
while ((pFileSearch->pDirent = readdir(pFileSearch->pDir)) != NULL)
{
if (FilePatternMatchA(pFileSearch->pDirent->d_name, pFileSearch->lpPattern))
{
strcpy(lpFindFileData->cFileName, pFileSearch->pDirent->d_name);
return TRUE;
}
}
return FALSE;
}
BOOL FindNextFileW(HANDLE hFindFile, LPWIN32_FIND_DATAW lpFindFileData)
{
return FALSE;
}
BOOL FindClose(HANDLE hFindFile)
{
WIN32_FILE_SEARCH* pFileSearch;
pFileSearch = (WIN32_FILE_SEARCH*) hFindFile;
free(pFileSearch->lpPath);
free(pFileSearch->lpPattern);
closedir(pFileSearch->pDir);
free(pFileSearch);
return TRUE;
}
BOOL CreateDirectoryA(LPCSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttributes)
{
if (!mkdir(lpPathName, S_IRUSR | S_IWUSR | S_IXUSR))
return TRUE;
return FALSE;
}
BOOL CreateDirectoryW(LPCWSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttributes)
{
return TRUE;
}
#endif
/* Extended API */
#define NAMED_PIPE_PREFIX_PATH "\\\\.\\pipe\\"
char* GetNamedPipeNameWithoutPrefixA(LPCSTR lpName)
{
char* lpFileName;
if (!lpName)
return NULL;
if (strncmp(lpName, NAMED_PIPE_PREFIX_PATH, sizeof(NAMED_PIPE_PREFIX_PATH) - 1) != 0)
return NULL;
lpFileName = _strdup(&lpName[strlen(NAMED_PIPE_PREFIX_PATH)]);
return lpFileName;
}
char* GetNamedPipeUnixDomainSocketBaseFilePathA()
{
char* lpTempPath;
char* lpPipePath;
lpTempPath = GetKnownPath(KNOWN_PATH_TEMP);
lpPipePath = GetCombinedPath(lpTempPath, ".pipe");
free(lpTempPath);
return lpPipePath;
}
char* GetNamedPipeUnixDomainSocketFilePathA(LPCSTR lpName)
{
char* lpPipePath;
char* lpFileName;
char* lpFilePath;
lpPipePath = GetNamedPipeUnixDomainSocketBaseFilePathA();
lpFileName = GetNamedPipeNameWithoutPrefixA(lpName);
lpFilePath = GetCombinedPath(lpPipePath, (char*) lpFileName);
free(lpPipePath);
free(lpFileName);
return lpFilePath;
}
int UnixChangeFileMode(const char* filename, int flags)
{
mode_t fl = 0;
fl |= (flags & 0x4000) ? S_ISUID : 0;
fl |= (flags & 0x2000) ? S_ISGID : 0;
fl |= (flags & 0x1000) ? S_ISVTX : 0;
fl |= (flags & 0x0400) ? S_IRUSR : 0;
fl |= (flags & 0x0200) ? S_IWUSR : 0;
fl |= (flags & 0x0100) ? S_IXUSR : 0;
fl |= (flags & 0x0040) ? S_IRGRP : 0;
fl |= (flags & 0x0020) ? S_IWGRP : 0;
fl |= (flags & 0x0010) ? S_IXGRP : 0;
fl |= (flags & 0x0004) ? S_IROTH : 0;
fl |= (flags & 0x0002) ? S_IWOTH : 0;
fl |= (flags & 0x0001) ? S_IXOTH : 0;
return chmod(filename, fl);
}