static const char *
DnDCreateRootStagingDirectory(void)
{
const char *root;
/*
* DnD_GetFileRoot() gives us a pointer to a static string, so there's no
* need to free anything.
*/
root = DnD_GetFileRoot();
if (!root) {
return NULL;
}
if (File_Exists(root)) {
if (!DnDRootDirUsable(root) &&
!DnDSetPermissionsOnRootDir(root)) {
/*
* The directory already exists and its permissions are wrong and
* cannot be set, so there's not much we can do.
*/
return NULL;
}
} else {
if (!File_CreateDirectory(root) ||
!DnDSetPermissionsOnRootDir(root)) {
/* We couldn't create the directory or set the permissions. */
return NULL;
}
}
return root;
}
static const char *
CreateApparentRootDirectory(void)
{
const char *root;
/*
* DnD_GetFileRoot() gives us a pointer to a static string, so there's no
* need to free anything.
*
* XXX On XDG platforms this path ("/tmp/VMwareDnD") is created by an
* init script, so we could remove some of the code below and just bail
* if the user deletes it.
*/
root = DnD_GetFileRoot();
if (!root) {
return NULL;
}
if (File_Exists(root)) {
if ( !DnDRootDirUsable(root)
&& !DnDSetPermissionsOnRootDir(root)) {
/*
* The directory already exists and its permissions are wrong and
* cannot be set, so there's not much we can do.
*/
return NULL;
}
} else {
if ( !File_CreateDirectory(root)
|| !DnDSetPermissionsOnRootDir(root)) {
/* We couldn't create the directory or set the permissions. */
return NULL;
}
}
return root;
}
char *
DnD_CreateStagingDirectory(void)
{
const char *root;
char **stagingDirList;
int numStagingDirs;
int i;
char *ret = NULL;
Bool found = FALSE;
/*
* Make sure the root staging directory is created with the correct
* permissions.
*/
root = DnDCreateRootStagingDirectory();
if (!root) {
return NULL;
}
/* Look for an existing, empty staging directory */
numStagingDirs = File_ListDirectory(root, &stagingDirList);
if (numStagingDirs < 0) {
goto exit;
}
for (i = 0; i < numStagingDirs; i++) {
if (!found) {
char *stagingDir;
stagingDir = Unicode_Append(root, stagingDirList[i]);
if (File_IsEmptyDirectory(stagingDir) &&
DnDStagingDirectoryUsable(stagingDir)) {
ret = Unicode_Append(stagingDir, DIRSEPS);
/*
* We can use this directory. Make sure to continue to loop
* so we don't leak the remaining stagindDirList[i]s.
*/
found = TRUE;
}
free(stagingDir);
}
}
Util_FreeStringList(stagingDirList, numStagingDirs);
/* Only create a directory if we didn't find one above. */
if (!found) {
rqContext *context;
context = Random_QuickSeed((unsigned)time(NULL));
for (i = 0; i < 10; i++) {
char *temp;
/* Each staging directory is given a random name. */
free(ret);
temp = Unicode_Format("%08x%c", Random_Quick(context), DIRSEPC);
VERIFY(temp);
ret = Unicode_Append(root, temp);
free(temp);
if (File_CreateDirectory(ret) &&
DnDSetPermissionsOnStagingDir(ret)) {
found = TRUE;
break;
}
}
free(context);
}
exit:
if (!found && ret != NULL) {
free(ret);
ret = NULL;
}
return ret;
}
