mirror of https://github.com/acidanthera/audk.git
ShellPkg/cd: Fix "cd" to support "fs0:dir" (no slash after ':')
When "fs0:dir"(drive letter without slash) is used as destination of "cd", "cd" tries to change to "dir" in root directory of "fs0:". It's incorrect. The correct behavior is to change to "dir" in current directory of "fs0:" Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Signed-off-by: Chen A Chen <chen.a.chen@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
This commit is contained in:
Ruiyu Ni
parent
bb99e3282c
commit
d9bb3ca3c2
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@ -16,6 +16,156 @@
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#include "UefiShellLevel2CommandsLib.h"
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/**
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Function will replace drive identifier with CWD.
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If FullPath begining with ':' is invalid path, then ASSERT.
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If FullPath not include dirve identifier , then do nothing.
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If FullPath likes "fs0:\xx" or "fs0:/xx" , then do nothing.
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If FullPath likes "fs0:xxx" or "fs0:", the drive replaced by CWD.
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@param[in, out] FullPath The pointer to the string containing the path.
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@param[in] Cwd Current directory.
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@retval EFI_SUCCESS Success.
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@retval EFI_OUT_OF_SOURCES A memory allocation failed.
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**/
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EFI_STATUS
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ReplaceDriveWithCwd (
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IN OUT CHAR16 **FullPath,
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IN CONST CHAR16 *Cwd
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)
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{
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CHAR16 *Splitter;
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CHAR16 *TempBuffer;
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UINTN TotalSize;
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Splitter = NULL;
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TempBuffer = NULL;
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TotalSize = 0;
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if (FullPath == NULL || *FullPath == NULL) {
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return EFI_SUCCESS;
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}
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Splitter = StrStr (*FullPath, L":");
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ASSERT(Splitter != *FullPath);
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if (Splitter != NULL && *(Splitter + 1) != L'\\' && *(Splitter + 1) != L'/') {
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TotalSize = StrSize (Cwd) + StrSize (Splitter + 1);
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TempBuffer = AllocateZeroPool (TotalSize);
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if (TempBuffer == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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StrCpyS (TempBuffer, TotalSize / sizeof(CHAR16), Cwd);
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StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), L"\\");
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StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), Splitter + 1);
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FreePool(*FullPath);
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*FullPath = TempBuffer;
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}
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return EFI_SUCCESS;
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}
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/**
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function to determine if FullPath is under current filesystem.
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@param[in] FullPath The target location to determine.
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@param[in] Cwd Current directory.
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@retval TRUE The FullPath is in the current filesystem.
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@retval FALSE The FullPaht isn't in the current filesystem.
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**/
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BOOLEAN
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IsCurrentFileSystem (
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IN CONST CHAR16 *FullPath,
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IN CONST CHAR16 *Cwd
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)
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{
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CHAR16 *Splitter1;
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CHAR16 *Splitter2;
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Splitter1 = NULL;
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Splitter2 = NULL;
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ASSERT(FullPath != NULL);
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Splitter1 = StrStr (FullPath, L":");
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if (Splitter1 == NULL) {
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return TRUE;
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}
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Splitter2 = StrStr (Cwd, L":");
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if ((UINTN) (Splitter1 - FullPath) != (UINTN) (Splitter2 - Cwd)) {
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return FALSE;
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} else {
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if (StrniCmp (FullPath, Cwd, (UINTN) (Splitter1 - FullPath)) == NULL) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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}
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/**
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Extract drive string and path string from FullPath.
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The caller must be free Drive and Path.
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@param[in] FullPath A path to be extracted.
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@param[out] Drive Buffer to save drive identifier.
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@param[out] Path Buffer to save path.
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@retval EFI_SUCCESS Success.
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@retval EFI_OUT_OF_RESOUCES A memory allocation failed.
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**/
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EFI_STATUS
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ExtractDriveAndPath (
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IN CONST CHAR16 *FullPath,
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OUT CHAR16 **Drive,
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OUT CHAR16 **Path
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)
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{
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CHAR16 *Splitter;
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ASSERT (FullPath != NULL);
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Splitter = StrStr (FullPath, L":");
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if (Splitter == NULL) {
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*Drive = NULL;
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*Path = AllocateCopyPool (StrSize (FullPath), FullPath);
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if (*Path == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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} else {
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if (*(Splitter + 1) == CHAR_NULL) {
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*Drive = AllocateCopyPool (StrSize (FullPath), FullPath);
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*Path = NULL;
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if (*Drive == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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} else {
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*Drive = AllocateCopyPool ((Splitter - FullPath + 2) * sizeof(CHAR16), FullPath);
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if (*Drive == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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(*Drive)[Splitter - FullPath + 1] = CHAR_NULL;
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*Path = AllocateCopyPool (StrSize (Splitter + 1), Splitter + 1);
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if (*Path == NULL) {
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FreePool (*Drive);
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return EFI_OUT_OF_RESOURCES;
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}
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}
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}
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return EFI_SUCCESS;
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}
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/**
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Function for 'cd' command.
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@ -31,23 +181,26 @@ ShellCommandRunCd (
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{
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EFI_STATUS Status;
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LIST_ENTRY *Package;
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CONST CHAR16 *Directory;
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CHAR16 *Cwd;
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CONST CHAR16 *Cwd;
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CHAR16 *Path;
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CHAR16 *Drive;
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UINTN CwdSize;
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UINTN DriveSize;
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CHAR16 *ProblemParam;
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SHELL_STATUS ShellStatus;
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SHELL_FILE_HANDLE Handle;
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CONST CHAR16 *Param1;
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CHAR16 *Param1Copy;
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CHAR16* Walker;
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CHAR16 *Walker;
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CHAR16 *Splitter;
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CHAR16 *TempBuffer;
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UINTN TotalSize;
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ProblemParam = NULL;
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ShellStatus = SHELL_SUCCESS;
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Drive = NULL;
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DriveSize = 0;
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ProblemParam = NULL;
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ShellStatus = SHELL_SUCCESS;
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Cwd = NULL;
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Path = NULL;
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Drive = NULL;
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Splitter = NULL;
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TempBuffer = NULL;
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TotalSize = 0;
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Status = CommandInit();
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ASSERT_EFI_ERROR(Status);
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@ -87,194 +240,106 @@ ShellCommandRunCd (
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// else If there are 2 value parameters, then print the error message
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// else If there is 1 value paramerer , then change the directory
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//
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Param1 = ShellCommandLineGetRawValue(Package, 1);
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if (Param1 == NULL) {
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//
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// display the current directory
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//
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Directory = ShellGetCurrentDir(NULL);
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if (Directory != NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_PRINT), gShellLevel2HiiHandle, Directory);
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} else {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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}
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Cwd = ShellGetCurrentDir (NULL);
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if (Cwd == NULL) {
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ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN(STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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} else {
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Param1Copy = CatSPrint(NULL, L"%s", Param1, NULL);
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for (Walker = Param1Copy; Walker != NULL && *Walker != CHAR_NULL ; Walker++) {
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if (*Walker == L'\"') {
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CopyMem(Walker, Walker+1, StrSize(Walker) - sizeof(Walker[0]));
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Param1 = ShellCommandLineGetRawValue (Package, 1);
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if (Param1 == NULL) {
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//
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// display the current directory
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//
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ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN(STR_CD_PRINT), gShellLevel2HiiHandle, Cwd);
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} else {
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Param1Copy = CatSPrint (NULL, L"%s", Param1, NULL);
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for (Walker = Param1Copy; Walker != NULL && *Walker != CHAR_NULL; Walker++) {
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if (*Walker == L'\"') {
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CopyMem (Walker, Walker + 1, StrSize(Walker) - sizeof(Walker[0]));
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}
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}
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}
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if (Param1Copy != NULL) {
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Param1Copy = PathCleanUpDirectories(Param1Copy);
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}
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if (Param1Copy != NULL) {
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if (StrCmp(Param1Copy, L".") == 0) {
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//
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// nothing to do... change to current directory
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//
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} else if (StrCmp(Param1Copy, L"..") == 0) {
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//
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// Change up one directory...
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//
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Directory = ShellGetCurrentDir(NULL);
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if (Directory == NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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} else {
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CwdSize = StrSize(Directory) + sizeof(CHAR16);
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Cwd = AllocateZeroPool(CwdSize);
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if (Cwd == NULL) {
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ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_OUT_OF_RESOURCES;
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} else {
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StrCpyS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, Directory);
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StrCatS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, L"\\");
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Drive = GetFullyQualifiedPath (Cwd);
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PathRemoveLastItem (Drive);
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FreePool (Cwd);
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}
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}
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if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
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//
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// change directory on current drive letter
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//
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Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
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if (Status == EFI_NOT_FOUND) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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}
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}
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} else if (StrCmp(Param1Copy, L"\\") == 0) {
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//
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// Move to root of current drive
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//
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Directory = ShellGetCurrentDir(NULL);
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if (Directory == NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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} else {
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CwdSize = StrSize(Directory) + sizeof(CHAR16);
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Cwd = AllocateZeroPool(CwdSize);
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if (Cwd == NULL) {
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ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_OUT_OF_RESOURCES;
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} else {
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StrCpyS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, Directory);
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StrCatS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, L"\\");
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Drive = GetFullyQualifiedPath (Cwd);
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while (PathRemoveLastItem (Drive)) {
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//
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// Check if Drive contains 'fsx:\' only or still points to a sub-directory.
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// Don't remove trailing '\' from Drive if it points to the root directory.
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//
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Path = StrStr (Drive, L":\\");
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if ((Path != NULL) && (*(Path + 2) == CHAR_NULL)) {
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break;
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}
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}
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FreePool (Cwd);
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}
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}
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if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
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//
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// change directory on current drive letter
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//
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Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
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if (Status == EFI_NOT_FOUND) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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}
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}
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} else if (StrStr(Param1Copy, L":") == NULL) {
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//
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// change directory without a drive identifier
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//
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if (ShellGetCurrentDir(NULL) == NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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} else {
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ASSERT((Drive == NULL && DriveSize == 0) || (Drive != NULL));
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Drive = StrnCatGrow(&Drive, &DriveSize, ShellGetCurrentDir(NULL), 0);
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Drive = StrnCatGrow(&Drive, &DriveSize, L"\\", 0);
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if (*Param1Copy == L'\\') {
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while (PathRemoveLastItem(Drive)) ;
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Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy+1, 0);
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} else {
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Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy, 0);
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}
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//
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// Verify that this is a valid directory
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//
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Status = gEfiShellProtocol->OpenFileByName(Drive, &Handle, EFI_FILE_MODE_READ);
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if (EFI_ERROR(Status)) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, L"cd", Drive);
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ShellStatus = SHELL_NOT_FOUND;
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} else if (EFI_ERROR(FileHandleIsDirectory(Handle))) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_DIR), gShellLevel2HiiHandle, L"cd", Drive);
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ShellStatus = SHELL_NOT_FOUND;
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}
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if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
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//
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// change directory on current drive letter
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//
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Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
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if (Status == EFI_NOT_FOUND) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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}
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}
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if (Handle != NULL) {
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gEfiShellProtocol->CloseFile(Handle);
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DEBUG_CODE(Handle = NULL;);
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}
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if (Param1Copy != NULL && IsCurrentFileSystem (Param1Copy, Cwd)) {
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Status = ReplaceDriveWithCwd (&Param1Copy,Cwd);
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if (!EFI_ERROR (Status)) {
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Param1Copy = PathCleanUpDirectories (Param1Copy);
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}
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} else {
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//
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// change directory with a drive letter
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// Can't use cd command to change filesystem.
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//
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Drive = AllocateCopyPool(StrSize(Param1Copy), Param1Copy);
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if (Drive == NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_MEM), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_OUT_OF_RESOURCES;
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} else {
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Path = StrStr(Drive, L":");
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ASSERT(Path != NULL);
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if (EFI_ERROR(ShellIsDirectory(Param1Copy))) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_DIR), gShellLevel2HiiHandle, L"cd", Param1Copy);
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ShellStatus = SHELL_NOT_FOUND;
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} else if (*(Path+1) == CHAR_NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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Status = EFI_NOT_FOUND;
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}
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if (!EFI_ERROR(Status) && Param1Copy != NULL) {
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Splitter = StrStr (Cwd, L":");
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if (Param1Copy[0] == L'\\') {
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//
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// Absolute Path on current drive letter.
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//
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TotalSize = ((Splitter - Cwd + 1) * sizeof(CHAR16)) + StrSize(Param1Copy);
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TempBuffer = AllocateZeroPool (TotalSize);
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if (TempBuffer == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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} else {
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*(Path+1) = CHAR_NULL;
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if (Path == Drive + StrLen(Drive)) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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ShellStatus = SHELL_NOT_FOUND;
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} else {
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Status = gEfiShellProtocol->SetCurDir(Drive, Path+2);
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_PRINT), gShellLevel2HiiHandle, ShellGetCurrentDir(Drive));
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}
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StrnCpyS (TempBuffer, TotalSize / sizeof(CHAR16), Cwd, (Splitter - Cwd + 1));
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StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), Param1Copy);
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FreePool (Param1Copy);
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Param1Copy = TempBuffer;
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TempBuffer = NULL;
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}
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if (Status == EFI_NOT_FOUND) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle, L"cd");
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Status = SHELL_NOT_FOUND;
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} else if (EFI_ERROR(Status)) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, L"cd", Param1Copy);
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Status = SHELL_NOT_FOUND;
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} else {
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if (StrStr (Param1Copy,L":") == NULL) {
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TotalSize = StrSize (Cwd) + StrSize (Param1Copy);
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TempBuffer = AllocateZeroPool (TotalSize);
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if (TempBuffer == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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} else {
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StrCpyS (TempBuffer, TotalSize / sizeof (CHAR16), Cwd);
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StrCatS (TempBuffer, TotalSize / sizeof (CHAR16), L"\\");
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StrCatS (TempBuffer, TotalSize / sizeof (CHAR16), Param1Copy);
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FreePool (Param1Copy);
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Param1Copy = PathCleanUpDirectories (TempBuffer);
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}
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}
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}
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}
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if (!EFI_ERROR(Status)) {
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Status = ExtractDriveAndPath (Param1Copy, &Drive, &Path);
|
||||
}
|
||||
|
||||
if (!EFI_ERROR (Status) && Drive != NULL && Path != NULL) {
|
||||
if (EFI_ERROR(ShellIsDirectory (Param1Copy))) {
|
||||
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN(STR_GEN_NOT_DIR), gShellLevel2HiiHandle, L"cd", Param1Copy);
|
||||
ShellStatus = SHELL_NOT_FOUND;
|
||||
} else {
|
||||
Status = gEfiShellProtocol->SetCurDir (Drive, Path + 1);
|
||||
if (EFI_ERROR (Status)) {
|
||||
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN(STR_GEN_DIR_NF), gShellLevel2HiiHandle, L"cd", Param1Copy);
|
||||
ShellStatus = SHELL_NOT_FOUND;
|
||||
} else {
|
||||
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN(STR_CD_PRINT), gShellLevel2HiiHandle, ShellGetCurrentDir(Drive));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (Drive != NULL) {
|
||||
FreePool (Drive);
|
||||
}
|
||||
|
||||
if (Path != NULL) {
|
||||
FreePool (Path);
|
||||
}
|
||||
|
||||
FreePool (Param1Copy);
|
||||
}
|
||||
FreePool(Param1Copy);
|
||||
}
|
||||
}
|
||||
|
||||
if (Drive != NULL) {
|
||||
FreePool(Drive);
|
||||
}
|
||||
//
|
||||
// free the command line package
|
||||
//
|
||||
|
|
|
|||
Loading…
Reference in New Issue