diff options
Diffstat (limited to 'ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c')
| -rw-r--r-- | ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c b/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c new file mode 100644 index 0000000000..78403c2274 --- /dev/null +++ b/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c @@ -0,0 +1,218 @@ +/** @file
+ Main file for attrib shell level 2 function.
+
+ Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UefiShellLevel2CommandsLib.h"
+
+/**
+ Function for 'cd' command.
+
+ @param[in] ImageHandle Handle to the Image (NULL if Internal).
+ @param[in] SystemTable Pointer to the System Table (NULL if Internal).
+**/
+SHELL_STATUS
+EFIAPI
+ShellCommandRunCd (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Package;
+ CONST CHAR16 *Directory;
+ CHAR16 *Path;
+ CHAR16 *Drive;
+ UINTN DriveSize;
+ CHAR16 *ProblemParam;
+ SHELL_STATUS ShellStatus;
+ SHELL_FILE_HANDLE Handle;
+ CONST CHAR16 *Param1;
+
+ ProblemParam = NULL;
+ ShellStatus = SHELL_SUCCESS;
+ Drive = NULL;
+ DriveSize = 0;
+
+ Status = CommandInit();
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // initialize the shell lib (we must be in non-auto-init...)
+ //
+ Status = ShellInitialize();
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // parse the command line
+ //
+ Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
+ if (EFI_ERROR(Status)) {
+ if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, ProblemParam);
+ FreePool(ProblemParam);
+ ShellStatus = SHELL_INVALID_PARAMETER;
+ } else {
+ ASSERT(FALSE);
+ }
+ }
+
+ //
+ // check for "-?"
+ //
+ if (ShellCommandLineGetFlag(Package, L"-?")) {
+ ASSERT(FALSE);
+ } else if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_INVALID_PARAMETER;
+ } else {
+ //
+ // remember that param 0 is the command name
+ // If there are 0 value parameters, then print the current directory
+ // else If there are 2 value parameters, then print the error message
+ // else If there is 1 value paramerer , then change the directory
+ //
+ Param1 = ShellCommandLineGetRawValue(Package, 1);
+ if (Param1 == NULL) {
+ //
+ // display the current directory
+ //
+ Directory = ShellGetCurrentDir(NULL);
+ if (Directory != NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_PRINT), gShellLevel2HiiHandle, Directory);
+ } else {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ }
+ } else {
+ if (StrCmp(Param1, L".") == 0) {
+ //
+ // nothing to do... change to current directory
+ //
+ } else if (StrCmp(Param1, L"..") == 0) {
+ //
+ // Change up one directory...
+ //
+ Directory = ShellGetCurrentDir(NULL);
+ if (Directory == NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ } else {
+ Drive = GetFullyQualifiedPath(Directory);
+ ChopLastSlash(Drive);
+ }
+ if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
+ //
+ // change directory on current drive letter
+ //
+ Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
+ if (Status == EFI_NOT_FOUND) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ }
+ }
+ } else if (StrCmp(Param1, L"\\") == 0) {
+ //
+ // Move to root of current drive
+ //
+ Directory = ShellGetCurrentDir(NULL);
+ if (Directory == NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ } else {
+ Drive = GetFullyQualifiedPath(Directory);
+ while (ChopLastSlash(Drive)) ;
+ }
+ if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
+ //
+ // change directory on current drive letter
+ //
+ Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
+ if (Status == EFI_NOT_FOUND) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ }
+ }
+ } else if (StrStr(Param1, L":") == NULL) {
+ if (ShellGetCurrentDir(NULL) == NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ } else {
+ ASSERT((Drive == NULL && DriveSize == 0) || (Drive != NULL));
+ Drive = StrnCatGrow(&Drive, &DriveSize, ShellGetCurrentDir(NULL), 0);
+ if (*Param1 == L'\\') {
+ while (ChopLastSlash(Drive)) ;
+ Drive = StrnCatGrow(&Drive, &DriveSize, Param1+1, 0);
+ } else {
+ Drive = StrnCatGrow(&Drive, &DriveSize, Param1, 0);
+ }
+ //
+ // Verify that this is a valid directory
+ //
+ Status = gEfiShellProtocol->OpenFileByName(Drive, &Handle, EFI_FILE_MODE_READ);
+ if (EFI_ERROR(Status)) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, Drive);
+ ShellStatus = SHELL_NOT_FOUND;
+ } else if (EFI_ERROR(FileHandleIsDirectory(Handle))) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_DIR), gShellLevel2HiiHandle, Drive);
+ ShellStatus = SHELL_NOT_FOUND;
+ }
+ if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
+ //
+ // change directory on current drive letter
+ //
+ Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
+ if (Status == EFI_NOT_FOUND) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
+ ShellStatus = SHELL_NOT_FOUND;
+ }
+ }
+ if (Handle != NULL) {
+ gEfiShellProtocol->CloseFile(Handle);
+ DEBUG_CODE(Handle = NULL;);
+ }
+ }
+ } else {
+ //
+ // change directory on other drive letter
+ //
+ Drive = AllocateZeroPool(StrSize(Param1));
+ Drive = StrCpy(Drive, Param1);
+ Path = StrStr(Drive, L":");
+ *(++Path) = CHAR_NULL;
+ Status = gEfiShellProtocol->SetCurDir(Drive, ++Path);
+
+ if (Status == EFI_NOT_FOUND) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
+ Status = SHELL_NOT_FOUND;
+ } else if (EFI_ERROR(Status)) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, Param1);
+ Status = SHELL_NOT_FOUND;
+ }
+ }
+ }
+ }
+
+ if (Drive != NULL) {
+ FreePool(Drive);
+ }
+ //
+ // free the command line package
+ //
+ ShellCommandLineFreeVarList (Package);
+
+ //
+ // return the status
+ //
+ return (ShellStatus);
+}
+
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