From c9d92df05f5a355f912c679d43b0c268917d97b8 Mon Sep 17 00:00:00 2001 From: jcarsey Date: Wed, 3 Feb 2010 15:37:54 +0000 Subject: k8 fixes and moving prompting for responses into this file. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9922 6f19259b-4bc3-4df7-8a09-765794883524 --- ShellPkg/Library/UefiShellLib/UefiShellLib.c | 196 ++++++++++++++++++++++++- ShellPkg/Library/UefiShellLib/UefiShellLib.inf | 2 +- 2 files changed, 189 insertions(+), 9 deletions(-) (limited to 'ShellPkg') diff --git a/ShellPkg/Library/UefiShellLib/UefiShellLib.c b/ShellPkg/Library/UefiShellLib/UefiShellLib.c index 5271d19490..fcb7e430ed 100644 --- a/ShellPkg/Library/UefiShellLib/UefiShellLib.c +++ b/ShellPkg/Library/UefiShellLib/UefiShellLib.c @@ -197,6 +197,7 @@ ShellLibConstructorWorker ( mEfiShellInterface = NULL; } } + // // only success getting 2 of either the old or new, but no 1/2 and 1/2 // @@ -247,7 +248,6 @@ ShellLibConstructor ( IN EFI_SYSTEM_TABLE *SystemTable ) { - mEfiShellEnvironment2 = NULL; mEfiShellProtocol = NULL; mEfiShellParametersProtocol = NULL; @@ -1278,6 +1278,10 @@ InternalShellConvertFileListType ( // allocate a new EFI_SHELL_FILE_INFO object // NewInfo = AllocateZeroPool(sizeof(EFI_SHELL_FILE_INFO)); + ASSERT(NewInfo != NULL); + if (NewInfo == NULL) { + break; + } // // copy the simple items @@ -1498,6 +1502,10 @@ ShellFindFilePath ( Size = StrSize(Path); Size += StrSize(FileName); TestPath = AllocateZeroPool(Size); + ASSERT(TestPath != NULL); + if (TestPath == NULL) { + return (NULL); + } StrCpy(TestPath, Path); StrCat(TestPath, FileName); Status = ShellOpenFileByName(TestPath, &Handle, EFI_FILE_MODE_READ, 0); @@ -1567,6 +1575,7 @@ ShellFindFilePathEx ( CONST CHAR16 *ExtensionWalker; UINTN Size; CHAR16 *TempChar; + CHAR16 *TempChar2; ASSERT(FileName != NULL); if (FileExtension == NULL) { @@ -1579,7 +1588,11 @@ ShellFindFilePathEx ( Size = StrSize(FileName); Size += StrSize(FileExtension); TestPath = AllocateZeroPool(Size); - for (ExtensionWalker = FileExtension ; ; ExtensionWalker = StrStr(ExtensionWalker, L";") + 1 ){ + ASSERT(TestPath != NULL); + if (TestPath == NULL) { + return (NULL); + } + for (ExtensionWalker = FileExtension, TempChar2 = (CHAR16*)FileExtension; TempChar2 != NULL ; ExtensionWalker = TempChar2 + 1 ){ StrCpy(TestPath, FileName); if (ExtensionWalker != NULL) { StrCat(TestPath, ExtensionWalker); @@ -1592,12 +1605,7 @@ ShellFindFilePathEx ( if (RetVal != NULL) { break; } - // - // Must be after first loop... - // - if (StrStr(ExtensionWalker, L";") == NULL) { - break; - } + TempChar2 = StrStr(ExtensionWalker, L";"); } FreePool(TestPath); return (RetVal); @@ -2804,13 +2812,185 @@ StrnCatGrow ( NewSize += 2 * Count * sizeof(CHAR16); } *Destination = ReallocatePool(*CurrentSize, NewSize, *Destination); + ASSERT(*Destination != NULL); *CurrentSize = NewSize; } else { *Destination = AllocateZeroPool((Count+1)*sizeof(CHAR16)); + ASSERT(*Destination != NULL); } // // Now use standard StrnCat on a big enough buffer // + if (*Destination == NULL) { + return (NULL); + } return StrnCat(*Destination, Source, Count); } + +/** + Prompt the user and return the resultant answer to the requestor. + + This function will display the requested question on the shell prompt and then + wait for an apropriate answer to be input from the console. + + if the SHELL_PROMPT_REQUEST_TYPE is SHELL_PROMPT_REQUEST_TYPE_YESNO, SHELL_PROMPT_REQUEST_TYPE_QUIT_CONTINUE + or SHELL_PROMPT_REQUEST_TYPE_YESNOCANCEL then *Response is of type SHELL_PROMPT_RESPONSE. + + if the SHELL_PROMPT_REQUEST_TYPE is SHELL_PROMPT_REQUEST_TYPE_FREEFORM then *Response is of type + CHAR16*. + + In either case *Response must be callee freed if Response was not NULL; + + @param Type What type of question is asked. This is used to filter the input + to prevent invalid answers to question. + @param Prompt Pointer to string prompt to use to request input. + @param Response Pointer to Response which will be populated upon return. + + @retval EFI_SUCCESS The operation was sucessful. + @retval EFI_UNSUPPORTED The operation is not supported as requested. + @retval EFI_INVALID_PARAMETER A parameter was invalid. + @return other The operation failed. +**/ +EFI_STATUS +EFIAPI +ShellPromptForResponse ( + IN SHELL_PROMPT_REQUEST_TYPE Type, + IN CHAR16 *Prompt OPTIONAL, + IN OUT VOID **Response OPTIONAL + ) +{ + EFI_STATUS Status; + EFI_INPUT_KEY Key; + UINTN EventIndex; + SHELL_PROMPT_RESPONSE *Resp; + + Status = EFI_SUCCESS; + Resp = (SHELL_PROMPT_RESPONSE*)AllocatePool(sizeof(SHELL_PROMPT_RESPONSE)); + + switch(Type) { + case SHELL_PROMPT_REQUEST_TYPE_QUIT_CONTINUE: + if (Prompt != NULL) { + ShellPrintEx(-1, -1, L"%s", Prompt); + } + // + // wait for valid response + // + gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex); + Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key); + ASSERT_EFI_ERROR(Status); + ShellPrintEx(-1, -1, L"%c", Key.UnicodeChar); + if (Key.UnicodeChar == L'Q' || Key.UnicodeChar ==L'q') { + *Resp = SHELL_PROMPT_RESPONSE_QUIT; + } else { + *Resp = SHELL_PROMPT_RESPONSE_CONTINUE; + } + break; + case SHELL_PROMPT_REQUEST_TYPE_YES_NO_ALL_CANCEL: + if (Prompt != NULL) { + ShellPrintEx(-1, -1, L"%s", Prompt); + } + // + // wait for valid response + // + *Resp = SHELL_PROMPT_RESPONSE_MAX; + while (*Resp == SHELL_PROMPT_RESPONSE_MAX) { + gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex); + Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key); + ASSERT_EFI_ERROR(Status); + ShellPrintEx(-1, -1, L"%c", Key.UnicodeChar); + switch (Key.UnicodeChar) { + case L'Y': + case L'y': + *Resp = SHELL_PROMPT_RESPONSE_YES; + break; + case L'N': + case L'n': + *Resp = SHELL_PROMPT_RESPONSE_NO; + break; + case L'A': + case L'a': + *Resp = SHELL_PROMPT_RESPONSE_ALL; + break; + case L'C': + case L'c': + *Resp = SHELL_PROMPT_RESPONSE_CANCEL; + break; + } + } + break; + case SHELL_PROMPT_REQUEST_TYPE_ENTER_TO_COMTINUE: + case SHELL_PROMPT_REQUEST_TYPE_ANYKEY_TO_COMTINUE: + if (Prompt != NULL) { + ShellPrintEx(-1, -1, L"%s", Prompt); + } + // + // wait for valid response + // + *Resp = SHELL_PROMPT_RESPONSE_MAX; + while (*Resp == SHELL_PROMPT_RESPONSE_MAX) { + gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex); + if (Type == SHELL_PROMPT_REQUEST_TYPE_ENTER_TO_COMTINUE) { + Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key); + ASSERT_EFI_ERROR(Status); + ShellPrintEx(-1, -1, L"%c", Key.UnicodeChar); + if (Key.UnicodeChar == CHAR_CARRIAGE_RETURN) { + *Resp = SHELL_PROMPT_RESPONSE_CONTINUE; + break; + } + } + if (Type == SHELL_PROMPT_REQUEST_TYPE_ANYKEY_TO_COMTINUE) { + *Resp = SHELL_PROMPT_RESPONSE_CONTINUE; + break; + } + } + break; + ///@todo add more request types here! + default: + Status = EFI_UNSUPPORTED; + } + + if (Response != NULL) { + *Response = Resp; + } else { + FreePool(Resp); + } + + return (Status); +} + +/** + Prompt the user and return the resultant answer to the requestor. + + This function is the same as ShellPromptForResponse, except that the prompt is + automatically pulled from HII. + + @param Type What type of question is asked. This is used to filter the input + to prevent invalid answers to question. + @param Prompt Pointer to string prompt to use to request input. + @param Response Pointer to Response which will be populated upon return. + + @retval EFI_SUCCESS the operation was sucessful. + @return other the operation failed. + + @sa ShellPromptForResponse +**/ +EFI_STATUS +EFIAPI +ShellPromptForResponseHii ( + IN SHELL_PROMPT_REQUEST_TYPE Type, + IN CONST EFI_STRING_ID HiiFormatStringId, + IN CONST EFI_HANDLE HiiFormatHandle, + IN OUT VOID **Response + ) +{ + CHAR16 *Prompt; + EFI_STATUS Status; + + Prompt = HiiGetString(HiiFormatHandle, HiiFormatStringId, NULL); + Status = ShellPromptForResponse(Type, Prompt, Response); + FreePool(Prompt); + return (Status); +} + + diff --git a/ShellPkg/Library/UefiShellLib/UefiShellLib.inf b/ShellPkg/Library/UefiShellLib/UefiShellLib.inf index 4c4bf4a061..5aefe00893 100644 --- a/ShellPkg/Library/UefiShellLib/UefiShellLib.inf +++ b/ShellPkg/Library/UefiShellLib/UefiShellLib.inf @@ -1,7 +1,7 @@ #/** @file # Provides interface to shell functionality for shell commands and applications. # -# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.
+# Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.
# # This program and the accompanying materials # are licensed and made available under the terms and conditions of the BSD License -- cgit v1.2.3