FreeRDP/winpr/libwinpr/path/shell.c

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/**
* WinPR: Windows Portable Runtime
* Path Functions
*
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2016 David PHAM-VAN <d.phamvan@inuvika.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.
*/
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#include <winpr/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <winpr/crt.h>
#include <winpr/platform.h>
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#include <winpr/file.h>
#include <winpr/tchar.h>
#include <winpr/environment.h>
#include <winpr/path.h>
#include <winpr/wlog.h>
#include "../log.h"
#define TAG WINPR_TAG("path.shell")
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#if defined(__IOS__)
#include "shell_ios.h"
#endif
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#if defined(WIN32)
#include <shlobj.h>
#else
#include <errno.h>
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#include <dirent.h>
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#endif
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static char* GetPath_XDG_CONFIG_HOME(void);
static char* GetPath_XDG_RUNTIME_DIR(void);
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/**
* SHGetKnownFolderPath function:
* http://msdn.microsoft.com/en-us/library/windows/desktop/bb762188/
*/
/**
* XDG Base Directory Specification:
* http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
*/
char* GetEnvAlloc(LPCSTR lpName)
{
DWORD nSize;
DWORD nStatus;
char* env = NULL;
nSize = GetEnvironmentVariableX(lpName, NULL, 0);
if (nSize > 0)
{
env = malloc(nSize);
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if (!env)
return NULL;
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nStatus = GetEnvironmentVariableX(lpName, env, nSize);
if (nStatus != (nSize - 1))
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{
free(env);
return NULL;
}
}
return env;
}
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static char* GetPath_HOME(void)
{
char* path = NULL;
#ifdef _WIN32
path = GetEnvAlloc("UserProfile");
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#elif defined(__IOS__)
path = ios_get_home();
#else
path = GetEnvAlloc("HOME");
#endif
return path;
}
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static char* GetPath_TEMP(void)
{
char* path = NULL;
#ifdef _WIN32
path = GetEnvAlloc("TEMP");
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#elif defined(__IOS__)
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path = ios_get_temp();
#else
path = GetEnvAlloc("TMPDIR");
if (!path)
path = _strdup("/tmp");
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#endif
return path;
}
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static char* GetPath_XDG_DATA_HOME(void)
{
char* path = NULL;
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#if defined(WIN32) || defined(__IOS__)
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path = GetPath_XDG_CONFIG_HOME();
#else
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size_t size;
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char* home = NULL;
/**
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* There is a single base directory relative to which user-specific data files should be
* written. This directory is defined by the environment variable $XDG_DATA_HOME.
*
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* $XDG_DATA_HOME defines the base directory relative to which user specific data files should
* be stored. If $XDG_DATA_HOME is either not set or empty, a default equal to
* $HOME/.local/share should be used.
*/
path = GetEnvAlloc("XDG_DATA_HOME");
if (path)
return path;
home = GetPath_HOME();
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if (!home)
return NULL;
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size = strlen(home) + strlen("/.local/share") + 1;
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path = (char*)malloc(size);
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if (!path)
{
free(home);
return NULL;
}
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sprintf_s(path, size, "%s%s", home, "/.local/share");
free(home);
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#endif
return path;
}
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static char* GetPath_XDG_CONFIG_HOME(void)
{
char* path = NULL;
#if defined(WIN32) && !defined(_UWP)
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path = calloc(MAX_PATH, sizeof(char));
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if (!path)
return NULL;
if (FAILED(SHGetFolderPathA(0, CSIDL_APPDATA, NULL, SHGFP_TYPE_CURRENT, path)))
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{
free(path);
return NULL;
}
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#elif defined(__IOS__)
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path = ios_get_data();
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#else
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size_t size;
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char* home = NULL;
/**
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* There is a single base directory relative to which user-specific configuration files should
* be written. This directory is defined by the environment variable $XDG_CONFIG_HOME.
*
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* $XDG_CONFIG_HOME defines the base directory relative to which user specific configuration
* files should be stored. If $XDG_CONFIG_HOME is either not set or empty, a default equal to
* $HOME/.config should be used.
*/
path = GetEnvAlloc("XDG_CONFIG_HOME");
if (path)
return path;
home = GetPath_HOME();
if (!home)
home = GetPath_TEMP();
if (!home)
return NULL;
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size = strlen(home) + strlen("/.config") + 1;
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path = (char*)malloc(size);
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if (!path)
{
free(home);
return NULL;
}
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sprintf_s(path, size, "%s%s", home, "/.config");
free(home);
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#endif
return path;
}
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static char* GetPath_XDG_CACHE_HOME(void)
{
char* path = NULL;
char* home = NULL;
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#if defined(WIN32)
home = GetPath_XDG_RUNTIME_DIR();
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if (home)
{
path = GetCombinedPath(home, "cache");
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if (!winpr_PathFileExists(path))
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if (!CreateDirectoryA(path, NULL))
path = NULL;
}
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free(home);
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#elif defined(__IOS__)
path = ios_get_cache();
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#else
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size_t size;
/**
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* There is a single base directory relative to which user-specific non-essential (cached) data
* should be written. This directory is defined by the environment variable $XDG_CACHE_HOME.
*
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* $XDG_CACHE_HOME defines the base directory relative to which user specific non-essential data
* files should be stored. If $XDG_CACHE_HOME is either not set or empty, a default equal to
* $HOME/.cache should be used.
*/
path = GetEnvAlloc("XDG_CACHE_HOME");
if (path)
return path;
home = GetPath_HOME();
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if (!home)
return NULL;
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size = strlen(home) + strlen("/.cache") + 1;
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path = (char*)malloc(size);
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if (!path)
{
free(home);
return NULL;
}
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sprintf_s(path, size, "%s%s", home, "/.cache");
free(home);
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#endif
return path;
}
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char* GetPath_XDG_RUNTIME_DIR(void)
{
char* path = NULL;
#if defined(WIN32) && !defined(_UWP)
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path = calloc(MAX_PATH, sizeof(char));
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if (!path)
return NULL;
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if (FAILED(SHGetFolderPathA(0, CSIDL_LOCAL_APPDATA, NULL, SHGFP_TYPE_CURRENT, path)))
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{
free(path);
return NULL;
}
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#else
/**
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* There is a single base directory relative to which user-specific runtime files and other file
* objects should be placed. This directory is defined by the environment variable
* $XDG_RUNTIME_DIR.
*
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* $XDG_RUNTIME_DIR defines the base directory relative to which user-specific non-essential
* runtime files and other file objects (such as sockets, named pipes, ...) should be stored.
* The directory MUST be owned by the user, and he MUST be the only one having read and write
* access to it. Its Unix access mode MUST be 0700.
*
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* The lifetime of the directory MUST be bound to the user being logged in. It MUST be created
* when the user first logs in and if the user fully logs out the directory MUST be removed. If
* the user logs in more than once he should get pointed to the same directory, and it is
* mandatory that the directory continues to exist from his first login to his last logout on
* the system, and not removed in between. Files in the directory MUST not survive reboot or a
* full logout/login cycle.
*
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* The directory MUST be on a local file system and not shared with any other system. The
* directory MUST by fully-featured by the standards of the operating system. More specifically,
* on Unix-like operating systems AF_UNIX sockets, symbolic links, hard links, proper
* permissions, file locking, sparse files, memory mapping, file change notifications, a
* reliable hard link count must be supported, and no restrictions on the file name character
* set should be imposed. Files in this directory MAY be subjected to periodic clean-up. To
* ensure that your files are not removed, they should have their access time timestamp modified
* at least once every 6 hours of monotonic time or the 'sticky' bit should be set on the file.
*
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* If $XDG_RUNTIME_DIR is not set applications should fall back to a replacement directory with
* similar capabilities and print a warning message. Applications should use this directory for
* communication and synchronization purposes and should not place larger files in it, since it
* might reside in runtime memory and cannot necessarily be swapped out to disk.
*/
path = GetEnvAlloc("XDG_RUNTIME_DIR");
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#endif
if (path)
return path;
path = GetPath_TEMP();
return path;
}
char* GetKnownPath(int id)
{
char* path = NULL;
switch (id)
{
case KNOWN_PATH_HOME:
path = GetPath_HOME();
break;
case KNOWN_PATH_TEMP:
path = GetPath_TEMP();
break;
case KNOWN_PATH_XDG_DATA_HOME:
path = GetPath_XDG_DATA_HOME();
break;
case KNOWN_PATH_XDG_CONFIG_HOME:
path = GetPath_XDG_CONFIG_HOME();
break;
case KNOWN_PATH_XDG_CACHE_HOME:
path = GetPath_XDG_CACHE_HOME();
break;
case KNOWN_PATH_XDG_RUNTIME_DIR:
path = GetPath_XDG_RUNTIME_DIR();
break;
default:
path = NULL;
break;
}
if (!path)
WLog_WARN(TAG, "Path %s is %p", GetKnownPathIdString(id), path);
return path;
}
char* GetKnownSubPath(int id, const char* path)
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{
char* subPath;
char* knownPath;
knownPath = GetKnownPath(id);
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if (!knownPath)
return NULL;
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subPath = GetCombinedPath(knownPath, path);
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free(knownPath);
return subPath;
}
char* GetEnvironmentPath(char* name)
{
char* env = NULL;
DWORD nSize;
DWORD nStatus;
nSize = GetEnvironmentVariableX(name, NULL, 0);
if (nSize)
{
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env = (LPSTR)malloc(nSize);
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if (!env)
return NULL;
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nStatus = GetEnvironmentVariableX(name, env, nSize);
if (nStatus != (nSize - 1))
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{
free(env);
return NULL;
}
}
return env;
}
char* GetEnvironmentSubPath(char* name, const char* path)
{
char* env;
char* subpath;
env = GetEnvironmentPath(name);
if (!env)
return NULL;
subpath = GetCombinedPath(env, path);
free(env);
return subpath;
}
char* GetCombinedPath(const char* basePath, const char* subPath)
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{
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size_t length;
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HRESULT status;
char* path = NULL;
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char* subPathCpy = NULL;
size_t basePathLength = 0;
size_t subPathLength = 0;
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if (basePath)
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basePathLength = strlen(basePath);
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if (subPath)
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subPathLength = strlen(subPath);
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length = basePathLength + subPathLength + 1;
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path = (char*)calloc(1, length + 1);
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if (!path)
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goto fail;
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if (basePath)
CopyMemory(path, basePath, basePathLength);
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if (FAILED(PathCchConvertStyleA(path, basePathLength, PATH_STYLE_NATIVE)))
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goto fail;
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if (!subPath)
return path;
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subPathCpy = _strdup(subPath);
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if (!subPathCpy)
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goto fail;
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if (FAILED(PathCchConvertStyleA(subPathCpy, subPathLength, PATH_STYLE_NATIVE)))
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goto fail;
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status = NativePathCchAppendA(path, length + 1, subPathCpy);
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if (FAILED(status))
goto fail;
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free(subPathCpy);
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return path;
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fail:
free(path);
free(subPathCpy);
return NULL;
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}
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BOOL PathMakePathA(LPCSTR path, LPSECURITY_ATTRIBUTES lpAttributes)
{
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#if defined(_UWP)
return FALSE;
#elif defined(_WIN32)
return (SHCreateDirectoryExA(NULL, path, lpAttributes) == ERROR_SUCCESS);
#else
const char delim = PathGetSeparatorA(PATH_STYLE_NATIVE);
char* dup;
char* p;
BOOL result = TRUE;
/* we only operate on a non-null, absolute path */
#if defined(__OS2__)
if (!path)
return FALSE;
#else
if (!path || *path != delim)
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return FALSE;
#endif
if (!(dup = _strdup(path)))
return FALSE;
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#ifdef __OS2__
p = (strlen(dup) > 3) && (dup[1] == ':') && (dup[2] == delim)) ? &dup[3] : dup;
while (p)
#else
for (p = dup; p;)
#endif
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{
if ((p = strchr(p + 1, delim)))
*p = '\0';
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if (mkdir(dup, 0777) != 0)
if (errno != EEXIST)
{
result = FALSE;
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break;
}
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if (p)
*p = delim;
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}
free(dup);
return (result);
#endif
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}
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BOOL PathMakePathW(LPCWSTR path, LPSECURITY_ATTRIBUTES lpAttributes)
{
#if defined(_UWP)
return FALSE;
#elif defined(_WIN32)
return (SHCreateDirectoryExW(NULL, path, lpAttributes) == ERROR_SUCCESS);
#else
const WCHAR wdelim = PathGetSeparatorW(PATH_STYLE_NATIVE);
const char delim = PathGetSeparatorA(PATH_STYLE_NATIVE);
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char* dup;
char* p;
BOOL result = TRUE;
/* we only operate on a non-null, absolute path */
#if defined(__OS2__)
if (!path)
return FALSE;
#else
if (!path || *path != wdelim)
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return FALSE;
#endif
dup = ConvertWCharToUtf8Alloc(path, NULL);
if (!dup)
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return FALSE;
#ifdef __OS2__
p = (strlen(dup) > 3) && (dup[1] == ':') && (dup[2] == delim)) ? &dup[3] : dup;
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while (p)
#else
for (p = dup; p;)
#endif
{
if ((p = strchr(p + 1, delim)))
*p = '\0';
if (mkdir(dup, 0777) != 0)
if (errno != EEXIST)
{
result = FALSE;
break;
}
if (p)
*p = delim;
}
free(dup);
return (result);
#endif
}
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#if !defined(_WIN32) || defined(_UWP)
BOOL PathIsRelativeA(LPCSTR pszPath)
{
if (!pszPath)
return FALSE;
return pszPath[0] != '/';
}
BOOL PathIsRelativeW(LPCWSTR pszPath)
{
LPSTR lpFileNameA = NULL;
BOOL ret = FALSE;
if (!pszPath)
goto fail;
lpFileNameA = ConvertWCharToUtf8Alloc(pszPath, NULL);
if (!lpFileNameA)
goto fail;
ret = PathIsRelativeA(lpFileNameA);
fail:
free(lpFileNameA);
return ret;
}
BOOL PathFileExistsA(LPCSTR pszPath)
{
struct stat stat_info;
if (stat(pszPath, &stat_info) != 0)
return FALSE;
return TRUE;
}
BOOL PathFileExistsW(LPCWSTR pszPath)
{
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LPSTR lpFileNameA = NULL;
BOOL ret = FALSE;
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if (!pszPath)
goto fail;
lpFileNameA = ConvertWCharToUtf8Alloc(pszPath, NULL);
if (!lpFileNameA)
goto fail;
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ret = winpr_PathFileExists(lpFileNameA);
fail:
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free(lpFileNameA);
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return ret;
}
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BOOL PathIsDirectoryEmptyA(LPCSTR pszPath)
{
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struct dirent* dp;
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int empty = 1;
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DIR* dir = opendir(pszPath);
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if (dir == NULL) /* Not a directory or doesn't exist */
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return 1;
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while ((dp = readdir(dir)) != NULL)
{
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if (strcmp(dp->d_name, ".") == 0 || strcmp(dp->d_name, "..") == 0)
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continue; /* Skip . and .. */
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empty = 0;
break;
}
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closedir(dir);
return empty;
}
BOOL PathIsDirectoryEmptyW(LPCWSTR pszPath)
{
LPSTR lpFileNameA = NULL;
BOOL ret = FALSE;
if (!pszPath)
goto fail;
lpFileNameA = ConvertWCharToUtf8Alloc(pszPath, NULL);
if (!lpFileNameA)
goto fail;
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ret = PathIsDirectoryEmptyA(lpFileNameA);
fail:
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free(lpFileNameA);
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return ret;
}
#else
#ifdef _MSC_VER
#pragma comment(lib, "shlwapi.lib")
#endif
#endif
BOOL winpr_MoveFile(LPCSTR lpExistingFileName, LPCSTR lpNewFileName)
{
#ifndef _WIN32
return MoveFileA(lpExistingFileName, lpNewFileName);
#else
BOOL result = FALSE;
LPWSTR lpExistingFileNameW = NULL;
LPWSTR lpNewFileNameW = NULL;
if (!lpExistingFileName || !lpNewFileName)
return FALSE;
lpExistingFileNameW = ConvertUtf8ToWCharAlloc(lpExistingFileName, NULL);
if (!lpExistingFileNameW)
goto cleanup;
lpNewFileNameW = ConvertUtf8ToWCharAlloc(lpNewFileName, NULL);
if (!lpNewFileNameW)
goto cleanup;
result = MoveFileW(lpExistingFileNameW, lpNewFileNameW);
cleanup:
free(lpExistingFileNameW);
free(lpNewFileNameW);
return result;
#endif
}
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BOOL winpr_MoveFileEx(LPCSTR lpExistingFileName, LPCSTR lpNewFileName, DWORD dwFlags)
{
#ifndef _WIN32
return MoveFileExA(lpExistingFileName, lpNewFileName, dwFlags);
#else
BOOL result = FALSE;
LPWSTR lpExistingFileNameW = NULL;
LPWSTR lpNewFileNameW = NULL;
if (!lpExistingFileName || !lpNewFileName)
return FALSE;
lpExistingFileNameW = ConvertUtf8ToWCharAlloc(lpExistingFileName, NULL);
if (!lpExistingFileNameW)
2022-10-25 14:45:44 +03:00
goto cleanup;
lpNewFileNameW = ConvertUtf8ToWCharAlloc(lpNewFileName, NULL);
if (!lpNewFileNameW)
2022-10-25 14:45:44 +03:00
goto cleanup;
result = MoveFileExW(lpExistingFileNameW, lpNewFileNameW, dwFlags);
cleanup:
free(lpExistingFileNameW);
free(lpNewFileNameW);
return result;
#endif
}
BOOL winpr_DeleteFile(const char* lpFileName)
{
#ifndef _WIN32
return DeleteFileA(lpFileName);
#else
LPWSTR lpFileNameW = NULL;
BOOL result = FALSE;
if (lpFileName)
{
lpFileNameW = ConvertUtf8ToWCharAlloc(lpFileName, NULL);
if (!lpFileNameW)
goto cleanup;
}
result = DeleteFileW(lpFileNameW);
cleanup:
free(lpFileNameW);
return result;
#endif
}
BOOL winpr_RemoveDirectory(LPCSTR lpPathName)
{
#ifndef _WIN32
return RemoveDirectoryA(lpPathName);
#else
LPWSTR lpPathNameW = NULL;
BOOL result = FALSE;
if (lpPathName)
{
lpPathNameW = ConvertUtf8ToWCharAlloc(lpPathName, NULL);
if (!lpPathNameW)
goto cleanup;
}
result = RemoveDirectoryW(lpPathNameW);
cleanup:
free(lpPathNameW);
return result;
#endif
}
BOOL winpr_PathFileExists(const char* pszPath)
{
if (!pszPath)
return FALSE;
#ifndef _WIN32
return PathFileExistsA(pszPath);
#else
WCHAR* pathW = ConvertUtf8ToWCharAlloc(pszPath, NULL);
BOOL result = FALSE;
if (!pathW)
return FALSE;
result = PathFileExistsW(pathW);
free(pathW);
return result;
#endif
}
BOOL winpr_PathMakePath(const char* path, LPSECURITY_ATTRIBUTES lpAttributes)
{
if (!path)
return FALSE;
#ifndef _WIN32
return PathMakePathA(path, lpAttributes);
#else
WCHAR* pathW = ConvertUtf8ToWCharAlloc(path, NULL);
BOOL result = FALSE;
if (!pathW)
return FALSE;
result = SHCreateDirectoryExW(NULL, pathW, lpAttributes) == ERROR_SUCCESS;
free(pathW);
return result;
#endif
}