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#include <Library/UefiLib.h>
#include <Library/DebugLib.h>
#include <Library/FileHandleLib.h>
#include <Library/MemoryAllocationLib.h>
#include "cmds.h"
STATIC BOOLEAN is_dir_empty(SHELL_FILE_HANDLE FileHandle)
{
EFI_STATUS status;
EFI_FILE_INFO *file_info = NULL;
BOOLEAN no_file = FALSE;
BOOLEAN ret = TRUE;
for(status = FileHandleFindFirstFile(FileHandle, &file_info);
!no_file && !EFI_ERROR (status);
FileHandleFindNextFile(FileHandle, file_info, &no_file))
{
if(StrStr(file_info->FileName, L".") != file_info->FileName &&
StrStr(file_info->FileName, L"..") != file_info->FileName) {
ret = FALSE;
}
}
return ret;
}
EFI_STATUS delete_file(EFI_SHELL_FILE_INFO *node)
{
EFI_SHELL_FILE_INFO *list = NULL, *walker = NULL;
EFI_STATUS status = EFI_SUCCESS;
if((node->Info->Attribute & EFI_FILE_READ_ONLY) == EFI_FILE_READ_ONLY)
return EFI_ACCESS_DENIED;
if((node->Info->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY) {
if(!is_dir_empty(node->Handle))
{
status = gEfiShellProtocol->FindFilesInDir(node->Handle, &list);
if(EFI_ERROR(status)) {
if(list)
gEfiShellProtocol->FreeFileList(&list);
return EFI_DEVICE_ERROR;
}
for(walker = (EFI_SHELL_FILE_INFO *)GetFirstNode(&list->Link);
!IsNull(&list->Link, &walker->Link);
walker = (EFI_SHELL_FILE_INFO *)GetNextNode(&list->Link, &walker->Link))
{
if(StrCmp(walker->FileName, L".") == 0 || StrCmp(walker->FileName, L"..") == 0)
continue;
walker->Status = gEfiShellProtocol->OpenFileByName(walker->FullName, &walker->Handle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE);
if(!EFI_ERROR(walker->Status))
status = delete_file(walker);
else
status = walker->Status;
if(status != EFI_SUCCESS) {
if(list)
gEfiShellProtocol->FreeFileList(&list);
return status;
}
}
if(list)
gEfiShellProtocol->FreeFileList(&list);
}
}
if(StrCmp(node->FileName, L".") != 0 &&
StrCmp(node->FileName, L"..") != 0) {
// delete the current node
status = gEfiShellProtocol->DeleteFile(node->Handle);
node->Handle = NULL;
}
return status;
}
EFI_STATUS make_directory(CONST CHAR16 *dir_name)
{
EFI_STATUS status = EFI_SUCCESS;
CHAR16 *tmp_str = NULL;
CHAR16 split_char, *split_name = NULL;
SHELL_FILE_HANDLE file_handle = NULL;
// check if dir already exists
status = ShellOpenFileByName(dir_name,
&file_handle,
EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE,
EFI_FILE_DIRECTORY
);
if(!EFI_ERROR(status)) {
ShellCloseFile(&file_handle);
return EFI_INVALID_PARAMETER;
}
// create the nested directory from parent to child:
// if dir_name = test1\test2\test3, first create "test1\" directory, then "test1\test2\", finally "test1\test2\test3".
tmp_str = AllocateCopyPool(StrSize(dir_name), dir_name);
tmp_str = PathCleanUpDirectories(tmp_str);
if(tmp_str == NULL)
return EFI_OUT_OF_RESOURCES;
split_name = tmp_str;
while(split_name != NULL) {
split_name = StrStr(split_name + 1, L"\\");
if(split_name != NULL) {
split_char = *(split_name + 1);
*(split_name + 1) = '\0';
}
// check if current nested directory already exists
status = ShellOpenFileByName(tmp_str,
&file_handle,
EFI_FILE_MODE_READ,
EFI_FILE_DIRECTORY
);
if(!EFI_ERROR(status)) {
ShellCloseFile(&file_handle);
}
else {
status = ShellCreateDirectory(tmp_str, &file_handle);
if(EFI_ERROR(status))
break;
if(file_handle != NULL)
gEfiShellProtocol->CloseFile(file_handle);
}
if(split_name != NULL)
*(split_name + 1) = split_char;
}
if(EFI_ERROR(status))
status = EFI_ACCESS_DENIED;
SHELL_FREE_NON_NULL(tmp_str);
return status;
}
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