Main file for Parse shell level 2 function.\r
\r
(C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>\r
- Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
}\r
}\r
\r
-/**\r
- Function to read a single line (up to but not including the \n) using StdIn data from a SHELL_FILE_HANDLE.\r
-\r
- If the position upon start is 0, then the Ascii Boolean will be set. This should be\r
- maintained and not changed for all operations with the same file.\r
-\r
- @param[in] Handle SHELL_FILE_HANDLE to read from.\r
- @param[in, out] Buffer The pointer to buffer to read into.\r
- @param[in, out] Size The pointer to number of bytes in Buffer.\r
- @param[in] Truncate If the buffer is large enough, this has no effect.\r
- If the buffer is is too small and Truncate is TRUE,\r
- the line will be truncated.\r
- If the buffer is is too small and Truncate is FALSE,\r
- then no read will occur.\r
-\r
- @retval EFI_SUCCESS The operation was successful. The line is stored in\r
- Buffer.\r
- @retval EFI_INVALID_PARAMETER Handle was NULL.\r
- @retval EFI_INVALID_PARAMETER Size was NULL.\r
- @retval EFI_BUFFER_TOO_SMALL Size was not large enough to store the line.\r
- Size was updated to the minimum space required.\r
-**/\r
-EFI_STATUS\r
-ShellFileHandleReadStdInLine(\r
- IN SHELL_FILE_HANDLE Handle,\r
- IN OUT CHAR16 *Buffer,\r
- IN OUT UINTN *Size,\r
- IN BOOLEAN Truncate\r
- )\r
-{\r
- EFI_STATUS Status;\r
- CHAR16 CharBuffer;\r
- UINTN CharSize;\r
- UINTN CountSoFar;\r
- UINT64 OriginalFilePosition;\r
-\r
-\r
- if (Handle == NULL\r
- ||Size == NULL\r
- ){\r
- return (EFI_INVALID_PARAMETER);\r
- }\r
- if (Buffer == NULL) {\r
- ASSERT(*Size == 0);\r
- } else {\r
- *Buffer = CHAR_NULL;\r
- }\r
- gEfiShellProtocol->GetFilePosition (Handle, &OriginalFilePosition);\r
-\r
- for (CountSoFar = 0;;CountSoFar++){\r
- CharBuffer = 0;\r
- CharSize = sizeof(CHAR16);\r
- Status = gEfiShellProtocol->ReadFile (Handle, &CharSize, &CharBuffer);\r
- if ( EFI_ERROR(Status)\r
- || CharSize == 0\r
- || (CharBuffer == L'\n')\r
- ){\r
- break;\r
- }\r
- //\r
- // if we have space save it...\r
- //\r
- if ((CountSoFar+1)*sizeof(CHAR16) < *Size){\r
- ASSERT(Buffer != NULL);\r
- ((CHAR16*)Buffer)[CountSoFar] = CharBuffer;\r
- ((CHAR16*)Buffer)[CountSoFar+1] = CHAR_NULL;\r
- }\r
- }\r
-\r
- //\r
- // if we ran out of space tell when...\r
- //\r
- if ((CountSoFar+1)*sizeof(CHAR16) > *Size){\r
- *Size = (CountSoFar+1)*sizeof(CHAR16);\r
- if (!Truncate) {\r
- gEfiShellProtocol->SetFilePosition(Handle, OriginalFilePosition);\r
- } else {\r
- DEBUG((DEBUG_WARN, "The line was truncated in ShellFileHandleReadLine"));\r
- }\r
- return (EFI_BUFFER_TOO_SMALL);\r
- }\r
- while(Buffer[StrLen(Buffer)-1] == L'\r') {\r
- Buffer[StrLen(Buffer)-1] = CHAR_NULL;\r
- }\r
-\r
- return (Status);\r
-}\r
-\r
-\r
-/**\r
- Function to read a single line using StdIn from a SHELL_FILE_HANDLE. The \n is not included in the returned\r
- buffer. The returned buffer must be callee freed.\r
-\r
- If the position upon start is 0, then the Ascii Boolean will be set. This should be\r
- maintained and not changed for all operations with the same file.\r
-\r
- @param[in] Handle SHELL_FILE_HANDLE to read from.\r
-\r
- @return The line of text from the file.\r
- @retval NULL There was not enough memory available.\r
-\r
- @sa ShellFileHandleReadLine\r
-**/\r
-CHAR16*\r
-ParseReturnStdInLine (\r
- IN SHELL_FILE_HANDLE Handle\r
- )\r
-{\r
- CHAR16 *RetVal;\r
- UINTN Size;\r
- EFI_STATUS Status;\r
-\r
- Size = 0;\r
- RetVal = NULL;\r
-\r
- Status = ShellFileHandleReadStdInLine (Handle, RetVal, &Size, FALSE);\r
- if (Status == EFI_BUFFER_TOO_SMALL) {\r
- RetVal = AllocateZeroPool(Size);\r
- if (RetVal == NULL) {\r
- return (NULL);\r
- }\r
- Status = ShellFileHandleReadStdInLine (Handle, RetVal, &Size, FALSE);\r
-\r
- }\r
- if (EFI_ERROR(Status) && (RetVal != NULL)) {\r
- FreePool(RetVal);\r
- RetVal = NULL;\r
- }\r
- return (RetVal);\r
-}\r
-\r
/**\r
Handle stings for SFO Output with escape character ^ in a string\r
1. Quotation marks in the string must be escaped by using a ^ character (i.e. ^"). \r
ShellStatus = SHELL_NOT_FOUND;\r
} else {\r
for (LoopVariable = 0 ; LoopVariable < ShellCommandInstance && !ShellFileHandleEof(FileHandle);) {\r
- if (StreamingUnicode) {\r
- TempLine = ParseReturnStdInLine (FileHandle);\r
- } else {\r
- TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii); \r
- }\r
+ TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii); \r
\r
if ((TempLine == NULL) || (*TempLine == CHAR_NULL && StreamingUnicode)) {\r
break;\r
if (LoopVariable == ShellCommandInstance) {\r
LoopVariable = 0;\r
while(1) {\r
- if (StreamingUnicode) {\r
- TempLine = ParseReturnStdInLine (FileHandle);\r
- } else {\r
- TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii); \r
- }\r
+ TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii); \r
if (TempLine == NULL\r
|| *TempLine == CHAR_NULL\r
|| StrStr (TempLine, L"ShellCommand,") == TempLine) {\r
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