public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
From: "Ni, Ruiyu" <ruiyu.ni@intel.com>
To: "Carsey, Jaben" <jaben.carsey@intel.com>,
	"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "Carsey, Jaben" <jaben.carsey@intel.com>,
	"Chen, Chen A" <chen.a.chen@intel.com>
Subject: Re: [PATCH 2/2] ShellPkg/cd: Fix "cd" to support "fs0:dir" (no slash after ':')
Date: Fri, 23 Dec 2016 05:43:02 +0000	[thread overview]
Message-ID: <734D49CCEBEEF84792F5B80ED585239D5B86005E@SHSMSX104.ccr.corp.intel.com> (raw)
In-Reply-To: <CB6E33457884FA40993F35157061515C54B2D5A2@FMSMSX103.amr.corp.intel.com>

Jaben,
The assertion is to check caller instead of check user's input.
It's to make sure future modification won't break the parameter assumption of this function.

It's like the below assertion in StrCpy:
ASSERT (Destination != NULL);
ASSERT (((UINTN) Destination & BIT0) == 0);


Regards,
Ray

From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Carsey, Jaben
Sent: Thursday, December 22, 2016 12:23 AM
To: Ni, Ruiyu <ruiyu.ni@intel.com>; edk2-devel@lists.01.org
Cc: Carsey, Jaben <jaben.carsey@intel.com>; Chen, Chen A <chen.a.chen@intel.com>
Subject: Re: [edk2] [PATCH 2/2] ShellPkg/cd: Fix "cd" to support "fs0:dir" (no slash after ':')


> -----Original Message-----
> From: Ni, Ruiyu
> Sent: Wednesday, December 21, 2016 12:55 AM
> To: edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>
> Cc: Chen, Chen A <chen.a.chen@intel.com<mailto:chen.a.chen@intel.com>>; Carsey, Jaben
> <jaben.carsey@intel.com<mailto:jaben.carsey@intel.com>>
> Subject: [PATCH 2/2] ShellPkg/cd: Fix "cd" to support "fs0:dir" (no slash after
> ':')
> Importance: High
>
> 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<mailto:ruiyu.ni@intel.com>>
> Signed-off-by: Chen A Chen <chen.a.chen@intel.com<mailto:chen.a.chen@intel.com>>
> Cc: Jaben Carsey <jaben.carsey@intel.com<mailto:jaben.carsey@intel.com>>
> ---
>  ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c | 415 +++++++++++++--
> --------
>  1 file changed, 240 insertions(+), 175 deletions(-)
>
> diff --git a/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c
> b/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c
> index 0967bc7..0b4becf 100644
> --- a/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c
> +++ b/ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c
> @@ -17,6 +17,156 @@
>  #include "UefiShellLevel2CommandsLib.h"
>
>  /**
> +  Function will replace drive identifier with CWD.
> +
> +  If FullPath begining with ':' is invalid path, then ASSERT.

Is there any way for the user from the shell prompt to hit the ASSERT?  Is there a good reason to use ASSERT and not just return an error (NULL for example)?

> +  If FullPath not include dirve identifier , then do nothing.
> +  If FullPath likes "fs0:\xx" or "fs0:/xx" , then do nothing.
> +  If FullPath likes "fs0:xxx" or "fs0:", the drive replaced by CWD.
> +
> +  @param[in, out]   FullPath    The pointer to the string containing the path.
> +  @param[in]        Cwd         Current directory.
> +
> +  @retval   EFI_SUCCESS         Success.
> +  @retval   EFI_OUT_OF_SOURCES  A memory allocation failed.
> +**/
> +EFI_STATUS
> +ReplaceDriveWithCwd(
> +  IN OUT    CHAR16  **FullPath,
> +  IN CONST  CHAR16  *Cwd
> +  )
> +{
> +  CHAR16        *Splitter;
> +  CHAR16        *TempBuffer;
> +  UINTN         TotalSize;
> +
> +  Splitter   = NULL;
> +  TempBuffer = NULL;
> +  TotalSize  = 0;
> +
> +  if (FullPath == NULL || *FullPath == NULL) {
> +    return EFI_SUCCESS;
> +  }
> +
> +  Splitter = StrStr (*FullPath, L":");
> +  ASSERT(Splitter != *FullPath);
> +
> +  if (Splitter != NULL && *(Splitter + 1) != L'\\' && *(Splitter + 1) != L'/') {
> +    TotalSize = StrSize (Cwd) + StrSize (Splitter + 1);
> +    TempBuffer = AllocateZeroPool (TotalSize);
> +    if (TempBuffer == NULL) {
> +      return EFI_OUT_OF_RESOURCES;
> +    }
> +
> +    StrCpyS (TempBuffer, TotalSize / sizeof(CHAR16), Cwd);
> +    StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), L"\\");
> +    StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), Splitter + 1);
> +
> +    FreePool(*FullPath);
> +    *FullPath = TempBuffer;
> +  }
> +
> +  return EFI_SUCCESS;
> +}
> +
> +/**
> +  function to determine if FullPath is under current filesystem.
> +
> +  @param[in]    FullPath    The target location to determine.
> +  @param[in]    Cwd         Current directory.
> +
> +  @retval       TRUE        The FullPath is in the current filesystem.
> +  @retval       FALSE       The FullPaht isn't in the current filesystem.
> +**/
> +BOOLEAN
> +IsCurrentFileSystem(
> +  IN CONST CHAR16   *FullPath,
> +  IN CONST CHAR16   *Cwd
> +  )
> +{
> +  CHAR16 *Splitter1;
> +  CHAR16 *Splitter2;
> +
> +  Splitter1 = NULL;
> +  Splitter2 = NULL;
> +
> +  ASSERT(FullPath != NULL);
> +
> +  Splitter1 = StrStr (FullPath, L":");
> +  if (Splitter1 == NULL) {
> +    return TRUE;
> +  }
> +
> +  Splitter2 = StrStr (Cwd, L":");
> +
> +  if ((UINTN)(Splitter1 - FullPath) != (UINTN)(Splitter2 - Cwd)) {
> +    return FALSE;
> +  } else {
> +    if (StrniCmp(FullPath, Cwd, (UINTN)(Splitter1 - FullPath)) == NULL) {
> +      return TRUE;
> +    } else {
> +      return FALSE;
> +    }
> +  }
> +}
> +
> +/**
> +  Extract drive string and path string from FullPath.
> +
> +  The caller must be free Drive and Path.
> +
> +  @param[in]    FullPath    A path to be extracted.
> +  @param[out]   Drive       Buffer to save drive identifier.
> +  @param[out]   Path        Buffer to save path.
> +
> +  @retval       EFI_SUCCESS           Success.
> +  @retval       EFI_OUT_OF_RESOUCES   A memory allocation failed.
> +**/
> +EFI_STATUS
> +ExtractDriveAndPath(
> +  IN CONST CHAR16   *FullPath,
> +  OUT CHAR16        **Drive,
> +  OUT CHAR16        **Path
> +  )
> +{
> +  CHAR16 *Splitter;
> +
> +  ASSERT(FullPath != NULL);
> +
> +  Splitter = StrStr (FullPath, L":");
> +
> +  if (Splitter == NULL) {
> +    *Drive = NULL;
> +    *Path = AllocateCopyPool (StrSize (FullPath), FullPath);
> +    if (*Path == NULL) {
> +      return EFI_OUT_OF_RESOURCES;
> +    }
> +  } else {
> +    if (*(Splitter + 1) == CHAR_NULL) {
> +      *Drive = AllocateCopyPool (StrSize (FullPath), FullPath);
> +      *Path = NULL;
> +      if (*Drive == NULL) {
> +        return EFI_OUT_OF_RESOURCES;
> +      }
> +    } else {
> +      *Drive = AllocateCopyPool((Splitter - FullPath + 2) * sizeof(CHAR16),
> FullPath);
> +      if (*Drive == NULL) {
> +        return EFI_OUT_OF_RESOURCES;
> +      }
> +      (*Drive)[Splitter - FullPath + 1] = CHAR_NULL;
> +
> +      *Path = AllocateCopyPool (StrSize (Splitter + 1), Splitter + 1);
> +      if (*Path == NULL) {
> +        FreePool(*Drive);
> +        return EFI_OUT_OF_RESOURCES;
> +      }
> +    }
> +  }
> +
> +  return EFI_SUCCESS;
> +}
> +
> +/**
>    Function for 'cd' command.
>
>    @param[in] ImageHandle  Handle to the Image (NULL if Internal).
> @@ -31,23 +181,26 @@ ShellCommandRunCd (
>  {
>    EFI_STATUS        Status;
>    LIST_ENTRY        *Package;
> -  CONST CHAR16      *Directory;
> -  CHAR16            *Cwd;
> +  CONST CHAR16      *Cwd;
>    CHAR16            *Path;
>    CHAR16            *Drive;
> -  UINTN             CwdSize;
> -  UINTN             DriveSize;
>    CHAR16            *ProblemParam;
>    SHELL_STATUS      ShellStatus;
> -  SHELL_FILE_HANDLE Handle;
>    CONST CHAR16      *Param1;
>    CHAR16            *Param1Copy;
> -  CHAR16*           Walker;
> +  CHAR16            *Walker;
> +  CHAR16            *Splitter;
> +  CHAR16            *TempBuffer;
> +  UINTN             TotalSize;
>
> -  ProblemParam = NULL;
> -  ShellStatus = SHELL_SUCCESS;
> -  Drive = NULL;
> -  DriveSize = 0;
> +  ProblemParam  = NULL;
> +  ShellStatus   = SHELL_SUCCESS;
> +  Cwd           = NULL;
> +  Path          = NULL;
> +  Drive         = NULL;
> +  Splitter      = NULL;
> +  TempBuffer    = NULL;
> +  TotalSize     = 0;
>
>    Status = CommandInit();
>    ASSERT_EFI_ERROR(Status);
> @@ -87,194 +240,106 @@ ShellCommandRunCd (
>      // 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, L"cd");
> -        ShellStatus = SHELL_NOT_FOUND;
> -      }
> +    Cwd = ShellGetCurrentDir (NULL);
> +    if (Cwd == NULL) {
> +      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_GEN_NO_CWD),
> gShellLevel2HiiHandle, L"cd");
> +      ShellStatus = SHELL_NOT_FOUND;
>      } else {
> -      Param1Copy = CatSPrint(NULL, L"%s", Param1, NULL);
> -      for (Walker = Param1Copy; Walker != NULL && *Walker != CHAR_NULL ;
> Walker++) {
> -        if (*Walker == L'\"') {
> -          CopyMem(Walker, Walker+1, StrSize(Walker) - sizeof(Walker[0]));
> +      Param1 = ShellCommandLineGetRawValue(Package, 1);
> +      if (Param1 == NULL) {
> +        //
> +        // display the current directory
> +        //
> +        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_CD_PRINT),
> gShellLevel2HiiHandle, Cwd);
> +      } else {
> +        Param1Copy = CatSPrint(NULL, L"%s", Param1, NULL);
> +        for (Walker = Param1Copy; Walker != NULL && *Walker != CHAR_NULL;
> Walker++) {
> +          if (*Walker == L'\"') {
> +            CopyMem(Walker, Walker + 1, StrSize(Walker) - sizeof(Walker[0]));
> +          }
>          }
> -      }
> -
> -      if (Param1Copy != NULL) {
> -        Param1Copy = PathCleanUpDirectories(Param1Copy);
> -      }
> -      if (Param1Copy != NULL) {
> -        if (StrCmp(Param1Copy, L".") == 0) {
> -          //
> -          // nothing to do... change to current directory
> -          //
> -        } else if (StrCmp(Param1Copy, L"..") == 0) {
> +
> +        if (Param1Copy != NULL && IsCurrentFileSystem (Param1Copy, Cwd)) {
> +          Status = ReplaceDriveWithCwd (&Param1Copy,Cwd);
> +          if (!EFI_ERROR(Status)) {
> +            Param1Copy = PathCleanUpDirectories(Param1Copy);
> +          }
> +        } else {
>            //
> -          // Change up one directory...
> +          // Can't use cd command to change filesystem.
>            //
> -          Directory = ShellGetCurrentDir(NULL);
> -          if (Directory == NULL) {
> -            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD),
> gShellLevel2HiiHandle, L"cd");
> -            ShellStatus = SHELL_NOT_FOUND;
> -          } else {
> -            CwdSize = StrSize(Directory) + sizeof(CHAR16);
> -            Cwd = AllocateZeroPool(CwdSize);
> -            if (Cwd == NULL) {
> -              ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM),
> gShellLevel2HiiHandle, L"cd");
> -              ShellStatus = SHELL_OUT_OF_RESOURCES;
> -            } else {
> -              StrCpyS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, Directory);
> -              StrCatS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, L"\\");
> -              Drive = GetFullyQualifiedPath (Cwd);
> -              PathRemoveLastItem (Drive);
> -              FreePool (Cwd);
> -            }
> -          }
> -          if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
> +          ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_CD_NF),
> gShellLevel2HiiHandle, L"cd");
> +          Status = EFI_NOT_FOUND;
> +        }
> +
> +        if (!EFI_ERROR(Status) && Param1Copy != NULL) {
> +          Splitter = StrStr (Cwd, L":");
> +          if (Param1Copy[0] == L'\\') {
>              //
> -            // change directory on current drive letter
> +            // Absolute Path on current drive letter.
>              //
> -            Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
> -            if (Status == EFI_NOT_FOUND) {
> -              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF),
> gShellLevel2HiiHandle, L"cd");
> -              ShellStatus = SHELL_NOT_FOUND;
> +            TotalSize = ((Splitter - Cwd + 1) * sizeof(CHAR16)) +
> StrSize(Param1Copy);
> +            TempBuffer = AllocateZeroPool(TotalSize);
> +            if (TempBuffer == NULL) {
> +              Status = EFI_OUT_OF_RESOURCES;
> +            } else {
> +              StrnCpyS(TempBuffer, TotalSize / sizeof(CHAR16), Cwd, (Splitter -
> Cwd + 1));
> +              StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), Param1Copy);
> +
> +              FreePool(Param1Copy);
> +              Param1Copy = TempBuffer;
> +              TempBuffer = NULL;
>              }
> -          }
> -        } else if (StrCmp(Param1Copy, 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, L"cd");
> -            ShellStatus = SHELL_NOT_FOUND;
>            } else {
> -            CwdSize = StrSize(Directory) + sizeof(CHAR16);
> -            Cwd = AllocateZeroPool(CwdSize);
> -            if (Cwd == NULL) {
> -              ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM),
> gShellLevel2HiiHandle, L"cd");
> -              ShellStatus = SHELL_OUT_OF_RESOURCES;
> -            } else {
> -              StrCpyS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, Directory);
> -              StrCatS (Cwd, StrSize (Directory) / sizeof (CHAR16) + 1, L"\\");
> -              Drive = GetFullyQualifiedPath (Cwd);
> -              while (PathRemoveLastItem (Drive)) {
> -                //
> -                // Check if Drive contains 'fsx:\' only or still points to a sub-directory.
> -                // Don't remove trailing '\' from Drive if it points to the root
> directory.
> -                //
> -                Path = StrStr (Drive, L":\\");
> -                if ((Path != NULL) && (*(Path + 2) == CHAR_NULL)) {
> -                  break;
> -                }
> +            if (StrStr (Param1Copy,L":") == NULL) {
> +              TotalSize = StrSize(Cwd) + StrSize (Param1Copy);
> +              TempBuffer = AllocateZeroPool (TotalSize);
> +              if (TempBuffer == NULL) {
> +                Status = EFI_OUT_OF_RESOURCES;
> +              } else {
> +                StrCpyS (TempBuffer, TotalSize / sizeof(CHAR16), Cwd);
> +                StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), L"\\");
> +                StrCatS (TempBuffer, TotalSize / sizeof(CHAR16), Param1Copy);
> +
> +                FreePool(Param1Copy);
> +                Param1Copy = PathCleanUpDirectories (TempBuffer);
>                }
> -              FreePool (Cwd);
>              }
>            }
> -          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, L"cd");
> -              ShellStatus = SHELL_NOT_FOUND;
> -            }
> -          }
> -        } else if (StrStr(Param1Copy, L":") == NULL) {
> -          //
> -          // change directory without a drive identifier
> -          //
> -          if (ShellGetCurrentDir(NULL) == NULL) {
> -            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD),
> gShellLevel2HiiHandle, L"cd");
> +        }
> +
> +        if (!EFI_ERROR(Status)) {
> +          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 {
> -            ASSERT((Drive == NULL && DriveSize == 0) || (Drive != NULL));
> -            Drive = StrnCatGrow(&Drive, &DriveSize, ShellGetCurrentDir(NULL),
> 0);
> -            Drive = StrnCatGrow(&Drive, &DriveSize, L"\\", 0);
> -            if (*Param1Copy == L'\\') {
> -              while (PathRemoveLastItem(Drive)) ;
> -              Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy+1, 0);
> -            } else {
> -              Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy, 0);
> -            }
> -            //
> -            // Verify that this is a valid directory
> -            //
> -            Status = gEfiShellProtocol->OpenFileByName(Drive, &Handle,
> EFI_FILE_MODE_READ);
> +            Status = gEfiShellProtocol->SetCurDir(Drive, Path + 1);
>              if (EFI_ERROR(Status)) {
> -              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF),
> gShellLevel2HiiHandle, L"cd", Drive);
> -              ShellStatus = SHELL_NOT_FOUND;
> -            } else if (EFI_ERROR(FileHandleIsDirectory(Handle))) {
> -              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_DIR),
> gShellLevel2HiiHandle, L"cd", 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, L"cd");
> -                ShellStatus = SHELL_NOT_FOUND;
> -              }
> -            }
> -            if (Handle != NULL) {
> -              gEfiShellProtocol->CloseFile(Handle);
> -              DEBUG_CODE(Handle = NULL;);
> -            }
> -          }
> -        } else {
> -          //
> -          // change directory with a drive letter
> -          //
> -          Drive = AllocateCopyPool(StrSize(Param1Copy), Param1Copy);
> -          if (Drive == NULL) {
> -            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_MEM),
> gShellLevel2HiiHandle, L"cd");
> -            ShellStatus = SHELL_OUT_OF_RESOURCES;
> -          } else {
> -            Path = StrStr(Drive, L":");
> -            ASSERT(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 if (*(Path+1) == CHAR_NULL) {
> -              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF),
> gShellLevel2HiiHandle, L"cd");
> +              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_GEN_DIR_NF),
> gShellLevel2HiiHandle, L"cd", Param1Copy);
>                ShellStatus = SHELL_NOT_FOUND;
>              } else {
> -              *(Path+1) = CHAR_NULL;
> -              if (Path == Drive + StrLen(Drive)) {
> -                ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF),
> gShellLevel2HiiHandle, L"cd");
> -                ShellStatus = SHELL_NOT_FOUND;
> -              } else {
> -                Status = gEfiShellProtocol->SetCurDir(Drive, Path+2);
> -                ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_PRINT),
> gShellLevel2HiiHandle, ShellGetCurrentDir(Drive));
> -              }
> -            }
> -            if (Status == EFI_NOT_FOUND) {
> -              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF),
> gShellLevel2HiiHandle, L"cd");
> -              Status = SHELL_NOT_FOUND;
> -            } else if (EFI_ERROR(Status)) {
> -              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF),
> gShellLevel2HiiHandle, L"cd", Param1Copy);
> -              Status = SHELL_NOT_FOUND;
> +              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
>    //
> --
> 2.9.0.windows.1

_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>
https://lists.01.org/mailman/listinfo/edk2-devel


  reply	other threads:[~2016-12-23  5:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-21  8:54 [PATCH 0/2] ShellPkg/cd: Fix "cd" to support "fs0:dir" (no slash after ':') Ruiyu Ni
2016-12-21  8:55 ` [PATCH 1/2] MdePkg/BaseLib: Fix PathCleanUpDirectories to correctly handle "\.\" Ruiyu Ni
2016-12-21  8:55 ` [PATCH 2/2] ShellPkg/cd: Fix "cd" to support "fs0:dir" (no slash after ':') Ruiyu Ni
2016-12-21 16:23   ` Carsey, Jaben
2016-12-23  5:43     ` Ni, Ruiyu [this message]
2016-12-27 23:01       ` Carsey, Jaben

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-list from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=734D49CCEBEEF84792F5B80ED585239D5B86005E@SHSMSX104.ccr.corp.intel.com \
    --to=devel@edk2.groups.io \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox